File: | src/gnu/usr.bin/clang/libclangCodeGen/../../../llvm/clang/lib/CodeGen/CGOpenMPRuntime.cpp |
Warning: | line 9199, column 30 Called C++ object pointer is null |
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1 | //===----- CGOpenMPRuntime.cpp - Interface to OpenMP Runtimes -------------===// | ||||
2 | // | ||||
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||||
4 | // See https://llvm.org/LICENSE.txt for license information. | ||||
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||||
6 | // | ||||
7 | //===----------------------------------------------------------------------===// | ||||
8 | // | ||||
9 | // This provides a class for OpenMP runtime code generation. | ||||
10 | // | ||||
11 | //===----------------------------------------------------------------------===// | ||||
12 | |||||
13 | #include "CGOpenMPRuntime.h" | ||||
14 | #include "CGCXXABI.h" | ||||
15 | #include "CGCleanup.h" | ||||
16 | #include "CGRecordLayout.h" | ||||
17 | #include "CodeGenFunction.h" | ||||
18 | #include "clang/AST/APValue.h" | ||||
19 | #include "clang/AST/Attr.h" | ||||
20 | #include "clang/AST/Decl.h" | ||||
21 | #include "clang/AST/OpenMPClause.h" | ||||
22 | #include "clang/AST/StmtOpenMP.h" | ||||
23 | #include "clang/AST/StmtVisitor.h" | ||||
24 | #include "clang/Basic/BitmaskEnum.h" | ||||
25 | #include "clang/Basic/FileManager.h" | ||||
26 | #include "clang/Basic/OpenMPKinds.h" | ||||
27 | #include "clang/Basic/SourceManager.h" | ||||
28 | #include "clang/CodeGen/ConstantInitBuilder.h" | ||||
29 | #include "llvm/ADT/ArrayRef.h" | ||||
30 | #include "llvm/ADT/SetOperations.h" | ||||
31 | #include "llvm/ADT/StringExtras.h" | ||||
32 | #include "llvm/Bitcode/BitcodeReader.h" | ||||
33 | #include "llvm/IR/Constants.h" | ||||
34 | #include "llvm/IR/DerivedTypes.h" | ||||
35 | #include "llvm/IR/GlobalValue.h" | ||||
36 | #include "llvm/IR/Value.h" | ||||
37 | #include "llvm/Support/AtomicOrdering.h" | ||||
38 | #include "llvm/Support/Format.h" | ||||
39 | #include "llvm/Support/raw_ostream.h" | ||||
40 | #include <cassert> | ||||
41 | #include <numeric> | ||||
42 | |||||
43 | using namespace clang; | ||||
44 | using namespace CodeGen; | ||||
45 | using namespace llvm::omp; | ||||
46 | |||||
47 | namespace { | ||||
48 | /// Base class for handling code generation inside OpenMP regions. | ||||
49 | class CGOpenMPRegionInfo : public CodeGenFunction::CGCapturedStmtInfo { | ||||
50 | public: | ||||
51 | /// Kinds of OpenMP regions used in codegen. | ||||
52 | enum CGOpenMPRegionKind { | ||||
53 | /// Region with outlined function for standalone 'parallel' | ||||
54 | /// directive. | ||||
55 | ParallelOutlinedRegion, | ||||
56 | /// Region with outlined function for standalone 'task' directive. | ||||
57 | TaskOutlinedRegion, | ||||
58 | /// Region for constructs that do not require function outlining, | ||||
59 | /// like 'for', 'sections', 'atomic' etc. directives. | ||||
60 | InlinedRegion, | ||||
61 | /// Region with outlined function for standalone 'target' directive. | ||||
62 | TargetRegion, | ||||
63 | }; | ||||
64 | |||||
65 | CGOpenMPRegionInfo(const CapturedStmt &CS, | ||||
66 | const CGOpenMPRegionKind RegionKind, | ||||
67 | const RegionCodeGenTy &CodeGen, OpenMPDirectiveKind Kind, | ||||
68 | bool HasCancel) | ||||
69 | : CGCapturedStmtInfo(CS, CR_OpenMP), RegionKind(RegionKind), | ||||
70 | CodeGen(CodeGen), Kind(Kind), HasCancel(HasCancel) {} | ||||
71 | |||||
72 | CGOpenMPRegionInfo(const CGOpenMPRegionKind RegionKind, | ||||
73 | const RegionCodeGenTy &CodeGen, OpenMPDirectiveKind Kind, | ||||
74 | bool HasCancel) | ||||
75 | : CGCapturedStmtInfo(CR_OpenMP), RegionKind(RegionKind), CodeGen(CodeGen), | ||||
76 | Kind(Kind), HasCancel(HasCancel) {} | ||||
77 | |||||
78 | /// Get a variable or parameter for storing global thread id | ||||
79 | /// inside OpenMP construct. | ||||
80 | virtual const VarDecl *getThreadIDVariable() const = 0; | ||||
81 | |||||
82 | /// Emit the captured statement body. | ||||
83 | void EmitBody(CodeGenFunction &CGF, const Stmt *S) override; | ||||
84 | |||||
85 | /// Get an LValue for the current ThreadID variable. | ||||
86 | /// \return LValue for thread id variable. This LValue always has type int32*. | ||||
87 | virtual LValue getThreadIDVariableLValue(CodeGenFunction &CGF); | ||||
88 | |||||
89 | virtual void emitUntiedSwitch(CodeGenFunction & /*CGF*/) {} | ||||
90 | |||||
91 | CGOpenMPRegionKind getRegionKind() const { return RegionKind; } | ||||
92 | |||||
93 | OpenMPDirectiveKind getDirectiveKind() const { return Kind; } | ||||
94 | |||||
95 | bool hasCancel() const { return HasCancel; } | ||||
96 | |||||
97 | static bool classof(const CGCapturedStmtInfo *Info) { | ||||
98 | return Info->getKind() == CR_OpenMP; | ||||
99 | } | ||||
100 | |||||
101 | ~CGOpenMPRegionInfo() override = default; | ||||
102 | |||||
103 | protected: | ||||
104 | CGOpenMPRegionKind RegionKind; | ||||
105 | RegionCodeGenTy CodeGen; | ||||
106 | OpenMPDirectiveKind Kind; | ||||
107 | bool HasCancel; | ||||
108 | }; | ||||
109 | |||||
110 | /// API for captured statement code generation in OpenMP constructs. | ||||
111 | class CGOpenMPOutlinedRegionInfo final : public CGOpenMPRegionInfo { | ||||
112 | public: | ||||
113 | CGOpenMPOutlinedRegionInfo(const CapturedStmt &CS, const VarDecl *ThreadIDVar, | ||||
114 | const RegionCodeGenTy &CodeGen, | ||||
115 | OpenMPDirectiveKind Kind, bool HasCancel, | ||||
116 | StringRef HelperName) | ||||
117 | : CGOpenMPRegionInfo(CS, ParallelOutlinedRegion, CodeGen, Kind, | ||||
118 | HasCancel), | ||||
119 | ThreadIDVar(ThreadIDVar), HelperName(HelperName) { | ||||
120 | assert(ThreadIDVar != nullptr && "No ThreadID in OpenMP region.")((void)0); | ||||
121 | } | ||||
122 | |||||
123 | /// Get a variable or parameter for storing global thread id | ||||
124 | /// inside OpenMP construct. | ||||
125 | const VarDecl *getThreadIDVariable() const override { return ThreadIDVar; } | ||||
126 | |||||
127 | /// Get the name of the capture helper. | ||||
128 | StringRef getHelperName() const override { return HelperName; } | ||||
129 | |||||
130 | static bool classof(const CGCapturedStmtInfo *Info) { | ||||
131 | return CGOpenMPRegionInfo::classof(Info) && | ||||
132 | cast<CGOpenMPRegionInfo>(Info)->getRegionKind() == | ||||
133 | ParallelOutlinedRegion; | ||||
134 | } | ||||
135 | |||||
136 | private: | ||||
137 | /// A variable or parameter storing global thread id for OpenMP | ||||
138 | /// constructs. | ||||
139 | const VarDecl *ThreadIDVar; | ||||
140 | StringRef HelperName; | ||||
141 | }; | ||||
142 | |||||
143 | /// API for captured statement code generation in OpenMP constructs. | ||||
144 | class CGOpenMPTaskOutlinedRegionInfo final : public CGOpenMPRegionInfo { | ||||
145 | public: | ||||
146 | class UntiedTaskActionTy final : public PrePostActionTy { | ||||
147 | bool Untied; | ||||
148 | const VarDecl *PartIDVar; | ||||
149 | const RegionCodeGenTy UntiedCodeGen; | ||||
150 | llvm::SwitchInst *UntiedSwitch = nullptr; | ||||
151 | |||||
152 | public: | ||||
153 | UntiedTaskActionTy(bool Tied, const VarDecl *PartIDVar, | ||||
154 | const RegionCodeGenTy &UntiedCodeGen) | ||||
155 | : Untied(!Tied), PartIDVar(PartIDVar), UntiedCodeGen(UntiedCodeGen) {} | ||||
156 | void Enter(CodeGenFunction &CGF) override { | ||||
157 | if (Untied) { | ||||
158 | // Emit task switching point. | ||||
159 | LValue PartIdLVal = CGF.EmitLoadOfPointerLValue( | ||||
160 | CGF.GetAddrOfLocalVar(PartIDVar), | ||||
161 | PartIDVar->getType()->castAs<PointerType>()); | ||||
162 | llvm::Value *Res = | ||||
163 | CGF.EmitLoadOfScalar(PartIdLVal, PartIDVar->getLocation()); | ||||
164 | llvm::BasicBlock *DoneBB = CGF.createBasicBlock(".untied.done."); | ||||
165 | UntiedSwitch = CGF.Builder.CreateSwitch(Res, DoneBB); | ||||
166 | CGF.EmitBlock(DoneBB); | ||||
167 | CGF.EmitBranchThroughCleanup(CGF.ReturnBlock); | ||||
168 | CGF.EmitBlock(CGF.createBasicBlock(".untied.jmp.")); | ||||
169 | UntiedSwitch->addCase(CGF.Builder.getInt32(0), | ||||
170 | CGF.Builder.GetInsertBlock()); | ||||
171 | emitUntiedSwitch(CGF); | ||||
172 | } | ||||
173 | } | ||||
174 | void emitUntiedSwitch(CodeGenFunction &CGF) const { | ||||
175 | if (Untied) { | ||||
176 | LValue PartIdLVal = CGF.EmitLoadOfPointerLValue( | ||||
177 | CGF.GetAddrOfLocalVar(PartIDVar), | ||||
178 | PartIDVar->getType()->castAs<PointerType>()); | ||||
179 | CGF.EmitStoreOfScalar(CGF.Builder.getInt32(UntiedSwitch->getNumCases()), | ||||
180 | PartIdLVal); | ||||
181 | UntiedCodeGen(CGF); | ||||
182 | CodeGenFunction::JumpDest CurPoint = | ||||
183 | CGF.getJumpDestInCurrentScope(".untied.next."); | ||||
184 | CGF.EmitBranch(CGF.ReturnBlock.getBlock()); | ||||
185 | CGF.EmitBlock(CGF.createBasicBlock(".untied.jmp.")); | ||||
186 | UntiedSwitch->addCase(CGF.Builder.getInt32(UntiedSwitch->getNumCases()), | ||||
187 | CGF.Builder.GetInsertBlock()); | ||||
188 | CGF.EmitBranchThroughCleanup(CurPoint); | ||||
189 | CGF.EmitBlock(CurPoint.getBlock()); | ||||
190 | } | ||||
191 | } | ||||
192 | unsigned getNumberOfParts() const { return UntiedSwitch->getNumCases(); } | ||||
193 | }; | ||||
194 | CGOpenMPTaskOutlinedRegionInfo(const CapturedStmt &CS, | ||||
195 | const VarDecl *ThreadIDVar, | ||||
196 | const RegionCodeGenTy &CodeGen, | ||||
197 | OpenMPDirectiveKind Kind, bool HasCancel, | ||||
198 | const UntiedTaskActionTy &Action) | ||||
199 | : CGOpenMPRegionInfo(CS, TaskOutlinedRegion, CodeGen, Kind, HasCancel), | ||||
200 | ThreadIDVar(ThreadIDVar), Action(Action) { | ||||
201 | assert(ThreadIDVar != nullptr && "No ThreadID in OpenMP region.")((void)0); | ||||
202 | } | ||||
203 | |||||
204 | /// Get a variable or parameter for storing global thread id | ||||
205 | /// inside OpenMP construct. | ||||
206 | const VarDecl *getThreadIDVariable() const override { return ThreadIDVar; } | ||||
207 | |||||
208 | /// Get an LValue for the current ThreadID variable. | ||||
209 | LValue getThreadIDVariableLValue(CodeGenFunction &CGF) override; | ||||
210 | |||||
211 | /// Get the name of the capture helper. | ||||
212 | StringRef getHelperName() const override { return ".omp_outlined."; } | ||||
213 | |||||
214 | void emitUntiedSwitch(CodeGenFunction &CGF) override { | ||||
215 | Action.emitUntiedSwitch(CGF); | ||||
216 | } | ||||
217 | |||||
218 | static bool classof(const CGCapturedStmtInfo *Info) { | ||||
219 | return CGOpenMPRegionInfo::classof(Info) && | ||||
220 | cast<CGOpenMPRegionInfo>(Info)->getRegionKind() == | ||||
221 | TaskOutlinedRegion; | ||||
222 | } | ||||
223 | |||||
224 | private: | ||||
225 | /// A variable or parameter storing global thread id for OpenMP | ||||
226 | /// constructs. | ||||
227 | const VarDecl *ThreadIDVar; | ||||
228 | /// Action for emitting code for untied tasks. | ||||
229 | const UntiedTaskActionTy &Action; | ||||
230 | }; | ||||
231 | |||||
232 | /// API for inlined captured statement code generation in OpenMP | ||||
233 | /// constructs. | ||||
234 | class CGOpenMPInlinedRegionInfo : public CGOpenMPRegionInfo { | ||||
235 | public: | ||||
236 | CGOpenMPInlinedRegionInfo(CodeGenFunction::CGCapturedStmtInfo *OldCSI, | ||||
237 | const RegionCodeGenTy &CodeGen, | ||||
238 | OpenMPDirectiveKind Kind, bool HasCancel) | ||||
239 | : CGOpenMPRegionInfo(InlinedRegion, CodeGen, Kind, HasCancel), | ||||
240 | OldCSI(OldCSI), | ||||
241 | OuterRegionInfo(dyn_cast_or_null<CGOpenMPRegionInfo>(OldCSI)) {} | ||||
242 | |||||
243 | // Retrieve the value of the context parameter. | ||||
244 | llvm::Value *getContextValue() const override { | ||||
245 | if (OuterRegionInfo) | ||||
246 | return OuterRegionInfo->getContextValue(); | ||||
247 | llvm_unreachable("No context value for inlined OpenMP region")__builtin_unreachable(); | ||||
248 | } | ||||
249 | |||||
250 | void setContextValue(llvm::Value *V) override { | ||||
251 | if (OuterRegionInfo) { | ||||
252 | OuterRegionInfo->setContextValue(V); | ||||
253 | return; | ||||
254 | } | ||||
255 | llvm_unreachable("No context value for inlined OpenMP region")__builtin_unreachable(); | ||||
256 | } | ||||
257 | |||||
258 | /// Lookup the captured field decl for a variable. | ||||
259 | const FieldDecl *lookup(const VarDecl *VD) const override { | ||||
260 | if (OuterRegionInfo) | ||||
261 | return OuterRegionInfo->lookup(VD); | ||||
262 | // If there is no outer outlined region,no need to lookup in a list of | ||||
263 | // captured variables, we can use the original one. | ||||
264 | return nullptr; | ||||
265 | } | ||||
266 | |||||
267 | FieldDecl *getThisFieldDecl() const override { | ||||
268 | if (OuterRegionInfo) | ||||
269 | return OuterRegionInfo->getThisFieldDecl(); | ||||
270 | return nullptr; | ||||
271 | } | ||||
272 | |||||
273 | /// Get a variable or parameter for storing global thread id | ||||
274 | /// inside OpenMP construct. | ||||
275 | const VarDecl *getThreadIDVariable() const override { | ||||
276 | if (OuterRegionInfo) | ||||
277 | return OuterRegionInfo->getThreadIDVariable(); | ||||
278 | return nullptr; | ||||
279 | } | ||||
280 | |||||
281 | /// Get an LValue for the current ThreadID variable. | ||||
282 | LValue getThreadIDVariableLValue(CodeGenFunction &CGF) override { | ||||
283 | if (OuterRegionInfo) | ||||
284 | return OuterRegionInfo->getThreadIDVariableLValue(CGF); | ||||
285 | llvm_unreachable("No LValue for inlined OpenMP construct")__builtin_unreachable(); | ||||
286 | } | ||||
287 | |||||
288 | /// Get the name of the capture helper. | ||||
289 | StringRef getHelperName() const override { | ||||
290 | if (auto *OuterRegionInfo = getOldCSI()) | ||||
291 | return OuterRegionInfo->getHelperName(); | ||||
292 | llvm_unreachable("No helper name for inlined OpenMP construct")__builtin_unreachable(); | ||||
293 | } | ||||
294 | |||||
295 | void emitUntiedSwitch(CodeGenFunction &CGF) override { | ||||
296 | if (OuterRegionInfo) | ||||
297 | OuterRegionInfo->emitUntiedSwitch(CGF); | ||||
298 | } | ||||
299 | |||||
300 | CodeGenFunction::CGCapturedStmtInfo *getOldCSI() const { return OldCSI; } | ||||
301 | |||||
302 | static bool classof(const CGCapturedStmtInfo *Info) { | ||||
303 | return CGOpenMPRegionInfo::classof(Info) && | ||||
304 | cast<CGOpenMPRegionInfo>(Info)->getRegionKind() == InlinedRegion; | ||||
305 | } | ||||
306 | |||||
307 | ~CGOpenMPInlinedRegionInfo() override = default; | ||||
308 | |||||
309 | private: | ||||
310 | /// CodeGen info about outer OpenMP region. | ||||
311 | CodeGenFunction::CGCapturedStmtInfo *OldCSI; | ||||
312 | CGOpenMPRegionInfo *OuterRegionInfo; | ||||
313 | }; | ||||
314 | |||||
315 | /// API for captured statement code generation in OpenMP target | ||||
316 | /// constructs. For this captures, implicit parameters are used instead of the | ||||
317 | /// captured fields. The name of the target region has to be unique in a given | ||||
318 | /// application so it is provided by the client, because only the client has | ||||
319 | /// the information to generate that. | ||||
320 | class CGOpenMPTargetRegionInfo final : public CGOpenMPRegionInfo { | ||||
321 | public: | ||||
322 | CGOpenMPTargetRegionInfo(const CapturedStmt &CS, | ||||
323 | const RegionCodeGenTy &CodeGen, StringRef HelperName) | ||||
324 | : CGOpenMPRegionInfo(CS, TargetRegion, CodeGen, OMPD_target, | ||||
325 | /*HasCancel=*/false), | ||||
326 | HelperName(HelperName) {} | ||||
327 | |||||
328 | /// This is unused for target regions because each starts executing | ||||
329 | /// with a single thread. | ||||
330 | const VarDecl *getThreadIDVariable() const override { return nullptr; } | ||||
331 | |||||
332 | /// Get the name of the capture helper. | ||||
333 | StringRef getHelperName() const override { return HelperName; } | ||||
334 | |||||
335 | static bool classof(const CGCapturedStmtInfo *Info) { | ||||
336 | return CGOpenMPRegionInfo::classof(Info) && | ||||
337 | cast<CGOpenMPRegionInfo>(Info)->getRegionKind() == TargetRegion; | ||||
338 | } | ||||
339 | |||||
340 | private: | ||||
341 | StringRef HelperName; | ||||
342 | }; | ||||
343 | |||||
344 | static void EmptyCodeGen(CodeGenFunction &, PrePostActionTy &) { | ||||
345 | llvm_unreachable("No codegen for expressions")__builtin_unreachable(); | ||||
346 | } | ||||
347 | /// API for generation of expressions captured in a innermost OpenMP | ||||
348 | /// region. | ||||
349 | class CGOpenMPInnerExprInfo final : public CGOpenMPInlinedRegionInfo { | ||||
350 | public: | ||||
351 | CGOpenMPInnerExprInfo(CodeGenFunction &CGF, const CapturedStmt &CS) | ||||
352 | : CGOpenMPInlinedRegionInfo(CGF.CapturedStmtInfo, EmptyCodeGen, | ||||
353 | OMPD_unknown, | ||||
354 | /*HasCancel=*/false), | ||||
355 | PrivScope(CGF) { | ||||
356 | // Make sure the globals captured in the provided statement are local by | ||||
357 | // using the privatization logic. We assume the same variable is not | ||||
358 | // captured more than once. | ||||
359 | for (const auto &C : CS.captures()) { | ||||
360 | if (!C.capturesVariable() && !C.capturesVariableByCopy()) | ||||
361 | continue; | ||||
362 | |||||
363 | const VarDecl *VD = C.getCapturedVar(); | ||||
364 | if (VD->isLocalVarDeclOrParm()) | ||||
365 | continue; | ||||
366 | |||||
367 | DeclRefExpr DRE(CGF.getContext(), const_cast<VarDecl *>(VD), | ||||
368 | /*RefersToEnclosingVariableOrCapture=*/false, | ||||
369 | VD->getType().getNonReferenceType(), VK_LValue, | ||||
370 | C.getLocation()); | ||||
371 | PrivScope.addPrivate( | ||||
372 | VD, [&CGF, &DRE]() { return CGF.EmitLValue(&DRE).getAddress(CGF); }); | ||||
373 | } | ||||
374 | (void)PrivScope.Privatize(); | ||||
375 | } | ||||
376 | |||||
377 | /// Lookup the captured field decl for a variable. | ||||
378 | const FieldDecl *lookup(const VarDecl *VD) const override { | ||||
379 | if (const FieldDecl *FD = CGOpenMPInlinedRegionInfo::lookup(VD)) | ||||
380 | return FD; | ||||
381 | return nullptr; | ||||
382 | } | ||||
383 | |||||
384 | /// Emit the captured statement body. | ||||
385 | void EmitBody(CodeGenFunction &CGF, const Stmt *S) override { | ||||
386 | llvm_unreachable("No body for expressions")__builtin_unreachable(); | ||||
387 | } | ||||
388 | |||||
389 | /// Get a variable or parameter for storing global thread id | ||||
390 | /// inside OpenMP construct. | ||||
391 | const VarDecl *getThreadIDVariable() const override { | ||||
392 | llvm_unreachable("No thread id for expressions")__builtin_unreachable(); | ||||
393 | } | ||||
394 | |||||
395 | /// Get the name of the capture helper. | ||||
396 | StringRef getHelperName() const override { | ||||
397 | llvm_unreachable("No helper name for expressions")__builtin_unreachable(); | ||||
398 | } | ||||
399 | |||||
400 | static bool classof(const CGCapturedStmtInfo *Info) { return false; } | ||||
401 | |||||
402 | private: | ||||
403 | /// Private scope to capture global variables. | ||||
404 | CodeGenFunction::OMPPrivateScope PrivScope; | ||||
405 | }; | ||||
406 | |||||
407 | /// RAII for emitting code of OpenMP constructs. | ||||
408 | class InlinedOpenMPRegionRAII { | ||||
409 | CodeGenFunction &CGF; | ||||
410 | llvm::DenseMap<const VarDecl *, FieldDecl *> LambdaCaptureFields; | ||||
411 | FieldDecl *LambdaThisCaptureField = nullptr; | ||||
412 | const CodeGen::CGBlockInfo *BlockInfo = nullptr; | ||||
413 | bool NoInheritance = false; | ||||
414 | |||||
415 | public: | ||||
416 | /// Constructs region for combined constructs. | ||||
417 | /// \param CodeGen Code generation sequence for combined directives. Includes | ||||
418 | /// a list of functions used for code generation of implicitly inlined | ||||
419 | /// regions. | ||||
420 | InlinedOpenMPRegionRAII(CodeGenFunction &CGF, const RegionCodeGenTy &CodeGen, | ||||
421 | OpenMPDirectiveKind Kind, bool HasCancel, | ||||
422 | bool NoInheritance = true) | ||||
423 | : CGF(CGF), NoInheritance(NoInheritance) { | ||||
424 | // Start emission for the construct. | ||||
425 | CGF.CapturedStmtInfo = new CGOpenMPInlinedRegionInfo( | ||||
426 | CGF.CapturedStmtInfo, CodeGen, Kind, HasCancel); | ||||
427 | if (NoInheritance) { | ||||
428 | std::swap(CGF.LambdaCaptureFields, LambdaCaptureFields); | ||||
429 | LambdaThisCaptureField = CGF.LambdaThisCaptureField; | ||||
430 | CGF.LambdaThisCaptureField = nullptr; | ||||
431 | BlockInfo = CGF.BlockInfo; | ||||
432 | CGF.BlockInfo = nullptr; | ||||
433 | } | ||||
434 | } | ||||
435 | |||||
436 | ~InlinedOpenMPRegionRAII() { | ||||
437 | // Restore original CapturedStmtInfo only if we're done with code emission. | ||||
438 | auto *OldCSI = | ||||
439 | cast<CGOpenMPInlinedRegionInfo>(CGF.CapturedStmtInfo)->getOldCSI(); | ||||
440 | delete CGF.CapturedStmtInfo; | ||||
441 | CGF.CapturedStmtInfo = OldCSI; | ||||
442 | if (NoInheritance) { | ||||
443 | std::swap(CGF.LambdaCaptureFields, LambdaCaptureFields); | ||||
444 | CGF.LambdaThisCaptureField = LambdaThisCaptureField; | ||||
445 | CGF.BlockInfo = BlockInfo; | ||||
446 | } | ||||
447 | } | ||||
448 | }; | ||||
449 | |||||
450 | /// Values for bit flags used in the ident_t to describe the fields. | ||||
451 | /// All enumeric elements are named and described in accordance with the code | ||||
452 | /// from https://github.com/llvm/llvm-project/blob/main/openmp/runtime/src/kmp.h | ||||
453 | enum OpenMPLocationFlags : unsigned { | ||||
454 | /// Use trampoline for internal microtask. | ||||
455 | OMP_IDENT_IMD = 0x01, | ||||
456 | /// Use c-style ident structure. | ||||
457 | OMP_IDENT_KMPC = 0x02, | ||||
458 | /// Atomic reduction option for kmpc_reduce. | ||||
459 | OMP_ATOMIC_REDUCE = 0x10, | ||||
460 | /// Explicit 'barrier' directive. | ||||
461 | OMP_IDENT_BARRIER_EXPL = 0x20, | ||||
462 | /// Implicit barrier in code. | ||||
463 | OMP_IDENT_BARRIER_IMPL = 0x40, | ||||
464 | /// Implicit barrier in 'for' directive. | ||||
465 | OMP_IDENT_BARRIER_IMPL_FOR = 0x40, | ||||
466 | /// Implicit barrier in 'sections' directive. | ||||
467 | OMP_IDENT_BARRIER_IMPL_SECTIONS = 0xC0, | ||||
468 | /// Implicit barrier in 'single' directive. | ||||
469 | OMP_IDENT_BARRIER_IMPL_SINGLE = 0x140, | ||||
470 | /// Call of __kmp_for_static_init for static loop. | ||||
471 | OMP_IDENT_WORK_LOOP = 0x200, | ||||
472 | /// Call of __kmp_for_static_init for sections. | ||||
473 | OMP_IDENT_WORK_SECTIONS = 0x400, | ||||
474 | /// Call of __kmp_for_static_init for distribute. | ||||
475 | OMP_IDENT_WORK_DISTRIBUTE = 0x800, | ||||
476 | LLVM_MARK_AS_BITMASK_ENUM(/*LargestValue=*/OMP_IDENT_WORK_DISTRIBUTE)LLVM_BITMASK_LARGEST_ENUMERATOR = OMP_IDENT_WORK_DISTRIBUTE | ||||
477 | }; | ||||
478 | |||||
479 | namespace { | ||||
480 | LLVM_ENABLE_BITMASK_ENUMS_IN_NAMESPACE()using ::llvm::BitmaskEnumDetail::operator~; using ::llvm::BitmaskEnumDetail ::operator|; using ::llvm::BitmaskEnumDetail::operator&; using ::llvm::BitmaskEnumDetail::operator^; using ::llvm::BitmaskEnumDetail ::operator|=; using ::llvm::BitmaskEnumDetail::operator&= ; using ::llvm::BitmaskEnumDetail::operator^=; | ||||
481 | /// Values for bit flags for marking which requires clauses have been used. | ||||
482 | enum OpenMPOffloadingRequiresDirFlags : int64_t { | ||||
483 | /// flag undefined. | ||||
484 | OMP_REQ_UNDEFINED = 0x000, | ||||
485 | /// no requires clause present. | ||||
486 | OMP_REQ_NONE = 0x001, | ||||
487 | /// reverse_offload clause. | ||||
488 | OMP_REQ_REVERSE_OFFLOAD = 0x002, | ||||
489 | /// unified_address clause. | ||||
490 | OMP_REQ_UNIFIED_ADDRESS = 0x004, | ||||
491 | /// unified_shared_memory clause. | ||||
492 | OMP_REQ_UNIFIED_SHARED_MEMORY = 0x008, | ||||
493 | /// dynamic_allocators clause. | ||||
494 | OMP_REQ_DYNAMIC_ALLOCATORS = 0x010, | ||||
495 | LLVM_MARK_AS_BITMASK_ENUM(/*LargestValue=*/OMP_REQ_DYNAMIC_ALLOCATORS)LLVM_BITMASK_LARGEST_ENUMERATOR = OMP_REQ_DYNAMIC_ALLOCATORS | ||||
496 | }; | ||||
497 | |||||
498 | enum OpenMPOffloadingReservedDeviceIDs { | ||||
499 | /// Device ID if the device was not defined, runtime should get it | ||||
500 | /// from environment variables in the spec. | ||||
501 | OMP_DEVICEID_UNDEF = -1, | ||||
502 | }; | ||||
503 | } // anonymous namespace | ||||
504 | |||||
505 | /// Describes ident structure that describes a source location. | ||||
506 | /// All descriptions are taken from | ||||
507 | /// https://github.com/llvm/llvm-project/blob/main/openmp/runtime/src/kmp.h | ||||
508 | /// Original structure: | ||||
509 | /// typedef struct ident { | ||||
510 | /// kmp_int32 reserved_1; /**< might be used in Fortran; | ||||
511 | /// see above */ | ||||
512 | /// kmp_int32 flags; /**< also f.flags; KMP_IDENT_xxx flags; | ||||
513 | /// KMP_IDENT_KMPC identifies this union | ||||
514 | /// member */ | ||||
515 | /// kmp_int32 reserved_2; /**< not really used in Fortran any more; | ||||
516 | /// see above */ | ||||
517 | ///#if USE_ITT_BUILD | ||||
518 | /// /* but currently used for storing | ||||
519 | /// region-specific ITT */ | ||||
520 | /// /* contextual information. */ | ||||
521 | ///#endif /* USE_ITT_BUILD */ | ||||
522 | /// kmp_int32 reserved_3; /**< source[4] in Fortran, do not use for | ||||
523 | /// C++ */ | ||||
524 | /// char const *psource; /**< String describing the source location. | ||||
525 | /// The string is composed of semi-colon separated | ||||
526 | // fields which describe the source file, | ||||
527 | /// the function and a pair of line numbers that | ||||
528 | /// delimit the construct. | ||||
529 | /// */ | ||||
530 | /// } ident_t; | ||||
531 | enum IdentFieldIndex { | ||||
532 | /// might be used in Fortran | ||||
533 | IdentField_Reserved_1, | ||||
534 | /// OMP_IDENT_xxx flags; OMP_IDENT_KMPC identifies this union member. | ||||
535 | IdentField_Flags, | ||||
536 | /// Not really used in Fortran any more | ||||
537 | IdentField_Reserved_2, | ||||
538 | /// Source[4] in Fortran, do not use for C++ | ||||
539 | IdentField_Reserved_3, | ||||
540 | /// String describing the source location. The string is composed of | ||||
541 | /// semi-colon separated fields which describe the source file, the function | ||||
542 | /// and a pair of line numbers that delimit the construct. | ||||
543 | IdentField_PSource | ||||
544 | }; | ||||
545 | |||||
546 | /// Schedule types for 'omp for' loops (these enumerators are taken from | ||||
547 | /// the enum sched_type in kmp.h). | ||||
548 | enum OpenMPSchedType { | ||||
549 | /// Lower bound for default (unordered) versions. | ||||
550 | OMP_sch_lower = 32, | ||||
551 | OMP_sch_static_chunked = 33, | ||||
552 | OMP_sch_static = 34, | ||||
553 | OMP_sch_dynamic_chunked = 35, | ||||
554 | OMP_sch_guided_chunked = 36, | ||||
555 | OMP_sch_runtime = 37, | ||||
556 | OMP_sch_auto = 38, | ||||
557 | /// static with chunk adjustment (e.g., simd) | ||||
558 | OMP_sch_static_balanced_chunked = 45, | ||||
559 | /// Lower bound for 'ordered' versions. | ||||
560 | OMP_ord_lower = 64, | ||||
561 | OMP_ord_static_chunked = 65, | ||||
562 | OMP_ord_static = 66, | ||||
563 | OMP_ord_dynamic_chunked = 67, | ||||
564 | OMP_ord_guided_chunked = 68, | ||||
565 | OMP_ord_runtime = 69, | ||||
566 | OMP_ord_auto = 70, | ||||
567 | OMP_sch_default = OMP_sch_static, | ||||
568 | /// dist_schedule types | ||||
569 | OMP_dist_sch_static_chunked = 91, | ||||
570 | OMP_dist_sch_static = 92, | ||||
571 | /// Support for OpenMP 4.5 monotonic and nonmonotonic schedule modifiers. | ||||
572 | /// Set if the monotonic schedule modifier was present. | ||||
573 | OMP_sch_modifier_monotonic = (1 << 29), | ||||
574 | /// Set if the nonmonotonic schedule modifier was present. | ||||
575 | OMP_sch_modifier_nonmonotonic = (1 << 30), | ||||
576 | }; | ||||
577 | |||||
578 | /// A basic class for pre|post-action for advanced codegen sequence for OpenMP | ||||
579 | /// region. | ||||
580 | class CleanupTy final : public EHScopeStack::Cleanup { | ||||
581 | PrePostActionTy *Action; | ||||
582 | |||||
583 | public: | ||||
584 | explicit CleanupTy(PrePostActionTy *Action) : Action(Action) {} | ||||
585 | void Emit(CodeGenFunction &CGF, Flags /*flags*/) override { | ||||
586 | if (!CGF.HaveInsertPoint()) | ||||
587 | return; | ||||
588 | Action->Exit(CGF); | ||||
589 | } | ||||
590 | }; | ||||
591 | |||||
592 | } // anonymous namespace | ||||
593 | |||||
594 | void RegionCodeGenTy::operator()(CodeGenFunction &CGF) const { | ||||
595 | CodeGenFunction::RunCleanupsScope Scope(CGF); | ||||
596 | if (PrePostAction
| ||||
597 | CGF.EHStack.pushCleanup<CleanupTy>(NormalAndEHCleanup, PrePostAction); | ||||
598 | Callback(CodeGen, CGF, *PrePostAction); | ||||
599 | } else { | ||||
600 | PrePostActionTy Action; | ||||
601 | Callback(CodeGen, CGF, Action); | ||||
602 | } | ||||
603 | } | ||||
604 | |||||
605 | /// Check if the combiner is a call to UDR combiner and if it is so return the | ||||
606 | /// UDR decl used for reduction. | ||||
607 | static const OMPDeclareReductionDecl * | ||||
608 | getReductionInit(const Expr *ReductionOp) { | ||||
609 | if (const auto *CE = dyn_cast<CallExpr>(ReductionOp)) | ||||
610 | if (const auto *OVE = dyn_cast<OpaqueValueExpr>(CE->getCallee())) | ||||
611 | if (const auto *DRE = | ||||
612 | dyn_cast<DeclRefExpr>(OVE->getSourceExpr()->IgnoreImpCasts())) | ||||
613 | if (const auto *DRD = dyn_cast<OMPDeclareReductionDecl>(DRE->getDecl())) | ||||
614 | return DRD; | ||||
615 | return nullptr; | ||||
616 | } | ||||
617 | |||||
618 | static void emitInitWithReductionInitializer(CodeGenFunction &CGF, | ||||
619 | const OMPDeclareReductionDecl *DRD, | ||||
620 | const Expr *InitOp, | ||||
621 | Address Private, Address Original, | ||||
622 | QualType Ty) { | ||||
623 | if (DRD->getInitializer()) { | ||||
624 | std::pair<llvm::Function *, llvm::Function *> Reduction = | ||||
625 | CGF.CGM.getOpenMPRuntime().getUserDefinedReduction(DRD); | ||||
626 | const auto *CE = cast<CallExpr>(InitOp); | ||||
627 | const auto *OVE = cast<OpaqueValueExpr>(CE->getCallee()); | ||||
628 | const Expr *LHS = CE->getArg(/*Arg=*/0)->IgnoreParenImpCasts(); | ||||
629 | const Expr *RHS = CE->getArg(/*Arg=*/1)->IgnoreParenImpCasts(); | ||||
630 | const auto *LHSDRE = | ||||
631 | cast<DeclRefExpr>(cast<UnaryOperator>(LHS)->getSubExpr()); | ||||
632 | const auto *RHSDRE = | ||||
633 | cast<DeclRefExpr>(cast<UnaryOperator>(RHS)->getSubExpr()); | ||||
634 | CodeGenFunction::OMPPrivateScope PrivateScope(CGF); | ||||
635 | PrivateScope.addPrivate(cast<VarDecl>(LHSDRE->getDecl()), | ||||
636 | [=]() { return Private; }); | ||||
637 | PrivateScope.addPrivate(cast<VarDecl>(RHSDRE->getDecl()), | ||||
638 | [=]() { return Original; }); | ||||
639 | (void)PrivateScope.Privatize(); | ||||
640 | RValue Func = RValue::get(Reduction.second); | ||||
641 | CodeGenFunction::OpaqueValueMapping Map(CGF, OVE, Func); | ||||
642 | CGF.EmitIgnoredExpr(InitOp); | ||||
643 | } else { | ||||
644 | llvm::Constant *Init = CGF.CGM.EmitNullConstant(Ty); | ||||
645 | std::string Name = CGF.CGM.getOpenMPRuntime().getName({"init"}); | ||||
646 | auto *GV = new llvm::GlobalVariable( | ||||
647 | CGF.CGM.getModule(), Init->getType(), /*isConstant=*/true, | ||||
648 | llvm::GlobalValue::PrivateLinkage, Init, Name); | ||||
649 | LValue LV = CGF.MakeNaturalAlignAddrLValue(GV, Ty); | ||||
650 | RValue InitRVal; | ||||
651 | switch (CGF.getEvaluationKind(Ty)) { | ||||
652 | case TEK_Scalar: | ||||
653 | InitRVal = CGF.EmitLoadOfLValue(LV, DRD->getLocation()); | ||||
654 | break; | ||||
655 | case TEK_Complex: | ||||
656 | InitRVal = | ||||
657 | RValue::getComplex(CGF.EmitLoadOfComplex(LV, DRD->getLocation())); | ||||
658 | break; | ||||
659 | case TEK_Aggregate: { | ||||
660 | OpaqueValueExpr OVE(DRD->getLocation(), Ty, VK_LValue); | ||||
661 | CodeGenFunction::OpaqueValueMapping OpaqueMap(CGF, &OVE, LV); | ||||
662 | CGF.EmitAnyExprToMem(&OVE, Private, Ty.getQualifiers(), | ||||
663 | /*IsInitializer=*/false); | ||||
664 | return; | ||||
665 | } | ||||
666 | } | ||||
667 | OpaqueValueExpr OVE(DRD->getLocation(), Ty, VK_PRValue); | ||||
668 | CodeGenFunction::OpaqueValueMapping OpaqueMap(CGF, &OVE, InitRVal); | ||||
669 | CGF.EmitAnyExprToMem(&OVE, Private, Ty.getQualifiers(), | ||||
670 | /*IsInitializer=*/false); | ||||
671 | } | ||||
672 | } | ||||
673 | |||||
674 | /// Emit initialization of arrays of complex types. | ||||
675 | /// \param DestAddr Address of the array. | ||||
676 | /// \param Type Type of array. | ||||
677 | /// \param Init Initial expression of array. | ||||
678 | /// \param SrcAddr Address of the original array. | ||||
679 | static void EmitOMPAggregateInit(CodeGenFunction &CGF, Address DestAddr, | ||||
680 | QualType Type, bool EmitDeclareReductionInit, | ||||
681 | const Expr *Init, | ||||
682 | const OMPDeclareReductionDecl *DRD, | ||||
683 | Address SrcAddr = Address::invalid()) { | ||||
684 | // Perform element-by-element initialization. | ||||
685 | QualType ElementTy; | ||||
686 | |||||
687 | // Drill down to the base element type on both arrays. | ||||
688 | const ArrayType *ArrayTy = Type->getAsArrayTypeUnsafe(); | ||||
689 | llvm::Value *NumElements = CGF.emitArrayLength(ArrayTy, ElementTy, DestAddr); | ||||
690 | DestAddr = | ||||
691 | CGF.Builder.CreateElementBitCast(DestAddr, DestAddr.getElementType()); | ||||
692 | if (DRD) | ||||
693 | SrcAddr = | ||||
694 | CGF.Builder.CreateElementBitCast(SrcAddr, DestAddr.getElementType()); | ||||
695 | |||||
696 | llvm::Value *SrcBegin = nullptr; | ||||
697 | if (DRD) | ||||
698 | SrcBegin = SrcAddr.getPointer(); | ||||
699 | llvm::Value *DestBegin = DestAddr.getPointer(); | ||||
700 | // Cast from pointer to array type to pointer to single element. | ||||
701 | llvm::Value *DestEnd = | ||||
702 | CGF.Builder.CreateGEP(DestAddr.getElementType(), DestBegin, NumElements); | ||||
703 | // The basic structure here is a while-do loop. | ||||
704 | llvm::BasicBlock *BodyBB = CGF.createBasicBlock("omp.arrayinit.body"); | ||||
705 | llvm::BasicBlock *DoneBB = CGF.createBasicBlock("omp.arrayinit.done"); | ||||
706 | llvm::Value *IsEmpty = | ||||
707 | CGF.Builder.CreateICmpEQ(DestBegin, DestEnd, "omp.arrayinit.isempty"); | ||||
708 | CGF.Builder.CreateCondBr(IsEmpty, DoneBB, BodyBB); | ||||
709 | |||||
710 | // Enter the loop body, making that address the current address. | ||||
711 | llvm::BasicBlock *EntryBB = CGF.Builder.GetInsertBlock(); | ||||
712 | CGF.EmitBlock(BodyBB); | ||||
713 | |||||
714 | CharUnits ElementSize = CGF.getContext().getTypeSizeInChars(ElementTy); | ||||
715 | |||||
716 | llvm::PHINode *SrcElementPHI = nullptr; | ||||
717 | Address SrcElementCurrent = Address::invalid(); | ||||
718 | if (DRD) { | ||||
719 | SrcElementPHI = CGF.Builder.CreatePHI(SrcBegin->getType(), 2, | ||||
720 | "omp.arraycpy.srcElementPast"); | ||||
721 | SrcElementPHI->addIncoming(SrcBegin, EntryBB); | ||||
722 | SrcElementCurrent = | ||||
723 | Address(SrcElementPHI, | ||||
724 | SrcAddr.getAlignment().alignmentOfArrayElement(ElementSize)); | ||||
725 | } | ||||
726 | llvm::PHINode *DestElementPHI = CGF.Builder.CreatePHI( | ||||
727 | DestBegin->getType(), 2, "omp.arraycpy.destElementPast"); | ||||
728 | DestElementPHI->addIncoming(DestBegin, EntryBB); | ||||
729 | Address DestElementCurrent = | ||||
730 | Address(DestElementPHI, | ||||
731 | DestAddr.getAlignment().alignmentOfArrayElement(ElementSize)); | ||||
732 | |||||
733 | // Emit copy. | ||||
734 | { | ||||
735 | CodeGenFunction::RunCleanupsScope InitScope(CGF); | ||||
736 | if (EmitDeclareReductionInit) { | ||||
737 | emitInitWithReductionInitializer(CGF, DRD, Init, DestElementCurrent, | ||||
738 | SrcElementCurrent, ElementTy); | ||||
739 | } else | ||||
740 | CGF.EmitAnyExprToMem(Init, DestElementCurrent, ElementTy.getQualifiers(), | ||||
741 | /*IsInitializer=*/false); | ||||
742 | } | ||||
743 | |||||
744 | if (DRD) { | ||||
745 | // Shift the address forward by one element. | ||||
746 | llvm::Value *SrcElementNext = CGF.Builder.CreateConstGEP1_32( | ||||
747 | SrcAddr.getElementType(), SrcElementPHI, /*Idx0=*/1, | ||||
748 | "omp.arraycpy.dest.element"); | ||||
749 | SrcElementPHI->addIncoming(SrcElementNext, CGF.Builder.GetInsertBlock()); | ||||
750 | } | ||||
751 | |||||
752 | // Shift the address forward by one element. | ||||
753 | llvm::Value *DestElementNext = CGF.Builder.CreateConstGEP1_32( | ||||
754 | DestAddr.getElementType(), DestElementPHI, /*Idx0=*/1, | ||||
755 | "omp.arraycpy.dest.element"); | ||||
756 | // Check whether we've reached the end. | ||||
757 | llvm::Value *Done = | ||||
758 | CGF.Builder.CreateICmpEQ(DestElementNext, DestEnd, "omp.arraycpy.done"); | ||||
759 | CGF.Builder.CreateCondBr(Done, DoneBB, BodyBB); | ||||
760 | DestElementPHI->addIncoming(DestElementNext, CGF.Builder.GetInsertBlock()); | ||||
761 | |||||
762 | // Done. | ||||
763 | CGF.EmitBlock(DoneBB, /*IsFinished=*/true); | ||||
764 | } | ||||
765 | |||||
766 | LValue ReductionCodeGen::emitSharedLValue(CodeGenFunction &CGF, const Expr *E) { | ||||
767 | return CGF.EmitOMPSharedLValue(E); | ||||
768 | } | ||||
769 | |||||
770 | LValue ReductionCodeGen::emitSharedLValueUB(CodeGenFunction &CGF, | ||||
771 | const Expr *E) { | ||||
772 | if (const auto *OASE = dyn_cast<OMPArraySectionExpr>(E)) | ||||
773 | return CGF.EmitOMPArraySectionExpr(OASE, /*IsLowerBound=*/false); | ||||
774 | return LValue(); | ||||
775 | } | ||||
776 | |||||
777 | void ReductionCodeGen::emitAggregateInitialization( | ||||
778 | CodeGenFunction &CGF, unsigned N, Address PrivateAddr, LValue SharedLVal, | ||||
779 | const OMPDeclareReductionDecl *DRD) { | ||||
780 | // Emit VarDecl with copy init for arrays. | ||||
781 | // Get the address of the original variable captured in current | ||||
782 | // captured region. | ||||
783 | const auto *PrivateVD = | ||||
784 | cast<VarDecl>(cast<DeclRefExpr>(ClausesData[N].Private)->getDecl()); | ||||
785 | bool EmitDeclareReductionInit = | ||||
786 | DRD && (DRD->getInitializer() || !PrivateVD->hasInit()); | ||||
787 | EmitOMPAggregateInit(CGF, PrivateAddr, PrivateVD->getType(), | ||||
788 | EmitDeclareReductionInit, | ||||
789 | EmitDeclareReductionInit ? ClausesData[N].ReductionOp | ||||
790 | : PrivateVD->getInit(), | ||||
791 | DRD, SharedLVal.getAddress(CGF)); | ||||
792 | } | ||||
793 | |||||
794 | ReductionCodeGen::ReductionCodeGen(ArrayRef<const Expr *> Shareds, | ||||
795 | ArrayRef<const Expr *> Origs, | ||||
796 | ArrayRef<const Expr *> Privates, | ||||
797 | ArrayRef<const Expr *> ReductionOps) { | ||||
798 | ClausesData.reserve(Shareds.size()); | ||||
799 | SharedAddresses.reserve(Shareds.size()); | ||||
800 | Sizes.reserve(Shareds.size()); | ||||
801 | BaseDecls.reserve(Shareds.size()); | ||||
802 | const auto *IOrig = Origs.begin(); | ||||
803 | const auto *IPriv = Privates.begin(); | ||||
804 | const auto *IRed = ReductionOps.begin(); | ||||
805 | for (const Expr *Ref : Shareds) { | ||||
806 | ClausesData.emplace_back(Ref, *IOrig, *IPriv, *IRed); | ||||
807 | std::advance(IOrig, 1); | ||||
808 | std::advance(IPriv, 1); | ||||
809 | std::advance(IRed, 1); | ||||
810 | } | ||||
811 | } | ||||
812 | |||||
813 | void ReductionCodeGen::emitSharedOrigLValue(CodeGenFunction &CGF, unsigned N) { | ||||
814 | assert(SharedAddresses.size() == N && OrigAddresses.size() == N &&((void)0) | ||||
815 | "Number of generated lvalues must be exactly N.")((void)0); | ||||
816 | LValue First = emitSharedLValue(CGF, ClausesData[N].Shared); | ||||
817 | LValue Second = emitSharedLValueUB(CGF, ClausesData[N].Shared); | ||||
818 | SharedAddresses.emplace_back(First, Second); | ||||
819 | if (ClausesData[N].Shared == ClausesData[N].Ref) { | ||||
820 | OrigAddresses.emplace_back(First, Second); | ||||
821 | } else { | ||||
822 | LValue First = emitSharedLValue(CGF, ClausesData[N].Ref); | ||||
823 | LValue Second = emitSharedLValueUB(CGF, ClausesData[N].Ref); | ||||
824 | OrigAddresses.emplace_back(First, Second); | ||||
825 | } | ||||
826 | } | ||||
827 | |||||
828 | void ReductionCodeGen::emitAggregateType(CodeGenFunction &CGF, unsigned N) { | ||||
829 | const auto *PrivateVD = | ||||
830 | cast<VarDecl>(cast<DeclRefExpr>(ClausesData[N].Private)->getDecl()); | ||||
831 | QualType PrivateType = PrivateVD->getType(); | ||||
832 | bool AsArraySection = isa<OMPArraySectionExpr>(ClausesData[N].Ref); | ||||
833 | if (!PrivateType->isVariablyModifiedType()) { | ||||
834 | Sizes.emplace_back( | ||||
835 | CGF.getTypeSize(OrigAddresses[N].first.getType().getNonReferenceType()), | ||||
836 | nullptr); | ||||
837 | return; | ||||
838 | } | ||||
839 | llvm::Value *Size; | ||||
840 | llvm::Value *SizeInChars; | ||||
841 | auto *ElemType = | ||||
842 | cast<llvm::PointerType>(OrigAddresses[N].first.getPointer(CGF)->getType()) | ||||
843 | ->getElementType(); | ||||
844 | auto *ElemSizeOf = llvm::ConstantExpr::getSizeOf(ElemType); | ||||
845 | if (AsArraySection) { | ||||
846 | Size = CGF.Builder.CreatePtrDiff(OrigAddresses[N].second.getPointer(CGF), | ||||
847 | OrigAddresses[N].first.getPointer(CGF)); | ||||
848 | Size = CGF.Builder.CreateNUWAdd( | ||||
849 | Size, llvm::ConstantInt::get(Size->getType(), /*V=*/1)); | ||||
850 | SizeInChars = CGF.Builder.CreateNUWMul(Size, ElemSizeOf); | ||||
851 | } else { | ||||
852 | SizeInChars = | ||||
853 | CGF.getTypeSize(OrigAddresses[N].first.getType().getNonReferenceType()); | ||||
854 | Size = CGF.Builder.CreateExactUDiv(SizeInChars, ElemSizeOf); | ||||
855 | } | ||||
856 | Sizes.emplace_back(SizeInChars, Size); | ||||
857 | CodeGenFunction::OpaqueValueMapping OpaqueMap( | ||||
858 | CGF, | ||||
859 | cast<OpaqueValueExpr>( | ||||
860 | CGF.getContext().getAsVariableArrayType(PrivateType)->getSizeExpr()), | ||||
861 | RValue::get(Size)); | ||||
862 | CGF.EmitVariablyModifiedType(PrivateType); | ||||
863 | } | ||||
864 | |||||
865 | void ReductionCodeGen::emitAggregateType(CodeGenFunction &CGF, unsigned N, | ||||
866 | llvm::Value *Size) { | ||||
867 | const auto *PrivateVD = | ||||
868 | cast<VarDecl>(cast<DeclRefExpr>(ClausesData[N].Private)->getDecl()); | ||||
869 | QualType PrivateType = PrivateVD->getType(); | ||||
870 | if (!PrivateType->isVariablyModifiedType()) { | ||||
871 | assert(!Size && !Sizes[N].second &&((void)0) | ||||
872 | "Size should be nullptr for non-variably modified reduction "((void)0) | ||||
873 | "items.")((void)0); | ||||
874 | return; | ||||
875 | } | ||||
876 | CodeGenFunction::OpaqueValueMapping OpaqueMap( | ||||
877 | CGF, | ||||
878 | cast<OpaqueValueExpr>( | ||||
879 | CGF.getContext().getAsVariableArrayType(PrivateType)->getSizeExpr()), | ||||
880 | RValue::get(Size)); | ||||
881 | CGF.EmitVariablyModifiedType(PrivateType); | ||||
882 | } | ||||
883 | |||||
884 | void ReductionCodeGen::emitInitialization( | ||||
885 | CodeGenFunction &CGF, unsigned N, Address PrivateAddr, LValue SharedLVal, | ||||
886 | llvm::function_ref<bool(CodeGenFunction &)> DefaultInit) { | ||||
887 | assert(SharedAddresses.size() > N && "No variable was generated")((void)0); | ||||
888 | const auto *PrivateVD = | ||||
889 | cast<VarDecl>(cast<DeclRefExpr>(ClausesData[N].Private)->getDecl()); | ||||
890 | const OMPDeclareReductionDecl *DRD = | ||||
891 | getReductionInit(ClausesData[N].ReductionOp); | ||||
892 | QualType PrivateType = PrivateVD->getType(); | ||||
893 | PrivateAddr = CGF.Builder.CreateElementBitCast( | ||||
894 | PrivateAddr, CGF.ConvertTypeForMem(PrivateType)); | ||||
895 | QualType SharedType = SharedAddresses[N].first.getType(); | ||||
896 | SharedLVal = CGF.MakeAddrLValue( | ||||
897 | CGF.Builder.CreateElementBitCast(SharedLVal.getAddress(CGF), | ||||
898 | CGF.ConvertTypeForMem(SharedType)), | ||||
899 | SharedType, SharedAddresses[N].first.getBaseInfo(), | ||||
900 | CGF.CGM.getTBAAInfoForSubobject(SharedAddresses[N].first, SharedType)); | ||||
901 | if (CGF.getContext().getAsArrayType(PrivateVD->getType())) { | ||||
902 | if (DRD && DRD->getInitializer()) | ||||
903 | (void)DefaultInit(CGF); | ||||
904 | emitAggregateInitialization(CGF, N, PrivateAddr, SharedLVal, DRD); | ||||
905 | } else if (DRD && (DRD->getInitializer() || !PrivateVD->hasInit())) { | ||||
906 | (void)DefaultInit(CGF); | ||||
907 | emitInitWithReductionInitializer(CGF, DRD, ClausesData[N].ReductionOp, | ||||
908 | PrivateAddr, SharedLVal.getAddress(CGF), | ||||
909 | SharedLVal.getType()); | ||||
910 | } else if (!DefaultInit(CGF) && PrivateVD->hasInit() && | ||||
911 | !CGF.isTrivialInitializer(PrivateVD->getInit())) { | ||||
912 | CGF.EmitAnyExprToMem(PrivateVD->getInit(), PrivateAddr, | ||||
913 | PrivateVD->getType().getQualifiers(), | ||||
914 | /*IsInitializer=*/false); | ||||
915 | } | ||||
916 | } | ||||
917 | |||||
918 | bool ReductionCodeGen::needCleanups(unsigned N) { | ||||
919 | const auto *PrivateVD = | ||||
920 | cast<VarDecl>(cast<DeclRefExpr>(ClausesData[N].Private)->getDecl()); | ||||
921 | QualType PrivateType = PrivateVD->getType(); | ||||
922 | QualType::DestructionKind DTorKind = PrivateType.isDestructedType(); | ||||
923 | return DTorKind != QualType::DK_none; | ||||
924 | } | ||||
925 | |||||
926 | void ReductionCodeGen::emitCleanups(CodeGenFunction &CGF, unsigned N, | ||||
927 | Address PrivateAddr) { | ||||
928 | const auto *PrivateVD = | ||||
929 | cast<VarDecl>(cast<DeclRefExpr>(ClausesData[N].Private)->getDecl()); | ||||
930 | QualType PrivateType = PrivateVD->getType(); | ||||
931 | QualType::DestructionKind DTorKind = PrivateType.isDestructedType(); | ||||
932 | if (needCleanups(N)) { | ||||
933 | PrivateAddr = CGF.Builder.CreateElementBitCast( | ||||
934 | PrivateAddr, CGF.ConvertTypeForMem(PrivateType)); | ||||
935 | CGF.pushDestroy(DTorKind, PrivateAddr, PrivateType); | ||||
936 | } | ||||
937 | } | ||||
938 | |||||
939 | static LValue loadToBegin(CodeGenFunction &CGF, QualType BaseTy, QualType ElTy, | ||||
940 | LValue BaseLV) { | ||||
941 | BaseTy = BaseTy.getNonReferenceType(); | ||||
942 | while ((BaseTy->isPointerType() || BaseTy->isReferenceType()) && | ||||
943 | !CGF.getContext().hasSameType(BaseTy, ElTy)) { | ||||
944 | if (const auto *PtrTy = BaseTy->getAs<PointerType>()) { | ||||
945 | BaseLV = CGF.EmitLoadOfPointerLValue(BaseLV.getAddress(CGF), PtrTy); | ||||
946 | } else { | ||||
947 | LValue RefLVal = CGF.MakeAddrLValue(BaseLV.getAddress(CGF), BaseTy); | ||||
948 | BaseLV = CGF.EmitLoadOfReferenceLValue(RefLVal); | ||||
949 | } | ||||
950 | BaseTy = BaseTy->getPointeeType(); | ||||
951 | } | ||||
952 | return CGF.MakeAddrLValue( | ||||
953 | CGF.Builder.CreateElementBitCast(BaseLV.getAddress(CGF), | ||||
954 | CGF.ConvertTypeForMem(ElTy)), | ||||
955 | BaseLV.getType(), BaseLV.getBaseInfo(), | ||||
956 | CGF.CGM.getTBAAInfoForSubobject(BaseLV, BaseLV.getType())); | ||||
957 | } | ||||
958 | |||||
959 | static Address castToBase(CodeGenFunction &CGF, QualType BaseTy, QualType ElTy, | ||||
960 | llvm::Type *BaseLVType, CharUnits BaseLVAlignment, | ||||
961 | llvm::Value *Addr) { | ||||
962 | Address Tmp = Address::invalid(); | ||||
963 | Address TopTmp = Address::invalid(); | ||||
964 | Address MostTopTmp = Address::invalid(); | ||||
965 | BaseTy = BaseTy.getNonReferenceType(); | ||||
966 | while ((BaseTy->isPointerType() || BaseTy->isReferenceType()) && | ||||
967 | !CGF.getContext().hasSameType(BaseTy, ElTy)) { | ||||
968 | Tmp = CGF.CreateMemTemp(BaseTy); | ||||
969 | if (TopTmp.isValid()) | ||||
970 | CGF.Builder.CreateStore(Tmp.getPointer(), TopTmp); | ||||
971 | else | ||||
972 | MostTopTmp = Tmp; | ||||
973 | TopTmp = Tmp; | ||||
974 | BaseTy = BaseTy->getPointeeType(); | ||||
975 | } | ||||
976 | llvm::Type *Ty = BaseLVType; | ||||
977 | if (Tmp.isValid()) | ||||
978 | Ty = Tmp.getElementType(); | ||||
979 | Addr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(Addr, Ty); | ||||
980 | if (Tmp.isValid()) { | ||||
981 | CGF.Builder.CreateStore(Addr, Tmp); | ||||
982 | return MostTopTmp; | ||||
983 | } | ||||
984 | return Address(Addr, BaseLVAlignment); | ||||
985 | } | ||||
986 | |||||
987 | static const VarDecl *getBaseDecl(const Expr *Ref, const DeclRefExpr *&DE) { | ||||
988 | const VarDecl *OrigVD = nullptr; | ||||
989 | if (const auto *OASE = dyn_cast<OMPArraySectionExpr>(Ref)) { | ||||
990 | const Expr *Base = OASE->getBase()->IgnoreParenImpCasts(); | ||||
991 | while (const auto *TempOASE = dyn_cast<OMPArraySectionExpr>(Base)) | ||||
992 | Base = TempOASE->getBase()->IgnoreParenImpCasts(); | ||||
993 | while (const auto *TempASE = dyn_cast<ArraySubscriptExpr>(Base)) | ||||
994 | Base = TempASE->getBase()->IgnoreParenImpCasts(); | ||||
995 | DE = cast<DeclRefExpr>(Base); | ||||
996 | OrigVD = cast<VarDecl>(DE->getDecl()); | ||||
997 | } else if (const auto *ASE = dyn_cast<ArraySubscriptExpr>(Ref)) { | ||||
998 | const Expr *Base = ASE->getBase()->IgnoreParenImpCasts(); | ||||
999 | while (const auto *TempASE = dyn_cast<ArraySubscriptExpr>(Base)) | ||||
1000 | Base = TempASE->getBase()->IgnoreParenImpCasts(); | ||||
1001 | DE = cast<DeclRefExpr>(Base); | ||||
1002 | OrigVD = cast<VarDecl>(DE->getDecl()); | ||||
1003 | } | ||||
1004 | return OrigVD; | ||||
1005 | } | ||||
1006 | |||||
1007 | Address ReductionCodeGen::adjustPrivateAddress(CodeGenFunction &CGF, unsigned N, | ||||
1008 | Address PrivateAddr) { | ||||
1009 | const DeclRefExpr *DE; | ||||
1010 | if (const VarDecl *OrigVD = ::getBaseDecl(ClausesData[N].Ref, DE)) { | ||||
1011 | BaseDecls.emplace_back(OrigVD); | ||||
1012 | LValue OriginalBaseLValue = CGF.EmitLValue(DE); | ||||
1013 | LValue BaseLValue = | ||||
1014 | loadToBegin(CGF, OrigVD->getType(), SharedAddresses[N].first.getType(), | ||||
1015 | OriginalBaseLValue); | ||||
1016 | Address SharedAddr = SharedAddresses[N].first.getAddress(CGF); | ||||
1017 | llvm::Value *Adjustment = CGF.Builder.CreatePtrDiff( | ||||
1018 | BaseLValue.getPointer(CGF), SharedAddr.getPointer()); | ||||
1019 | llvm::Value *PrivatePointer = | ||||
1020 | CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
1021 | PrivateAddr.getPointer(), SharedAddr.getType()); | ||||
1022 | llvm::Value *Ptr = CGF.Builder.CreateGEP( | ||||
1023 | SharedAddr.getElementType(), PrivatePointer, Adjustment); | ||||
1024 | return castToBase(CGF, OrigVD->getType(), | ||||
1025 | SharedAddresses[N].first.getType(), | ||||
1026 | OriginalBaseLValue.getAddress(CGF).getType(), | ||||
1027 | OriginalBaseLValue.getAlignment(), Ptr); | ||||
1028 | } | ||||
1029 | BaseDecls.emplace_back( | ||||
1030 | cast<VarDecl>(cast<DeclRefExpr>(ClausesData[N].Ref)->getDecl())); | ||||
1031 | return PrivateAddr; | ||||
1032 | } | ||||
1033 | |||||
1034 | bool ReductionCodeGen::usesReductionInitializer(unsigned N) const { | ||||
1035 | const OMPDeclareReductionDecl *DRD = | ||||
1036 | getReductionInit(ClausesData[N].ReductionOp); | ||||
1037 | return DRD && DRD->getInitializer(); | ||||
1038 | } | ||||
1039 | |||||
1040 | LValue CGOpenMPRegionInfo::getThreadIDVariableLValue(CodeGenFunction &CGF) { | ||||
1041 | return CGF.EmitLoadOfPointerLValue( | ||||
1042 | CGF.GetAddrOfLocalVar(getThreadIDVariable()), | ||||
1043 | getThreadIDVariable()->getType()->castAs<PointerType>()); | ||||
1044 | } | ||||
1045 | |||||
1046 | void CGOpenMPRegionInfo::EmitBody(CodeGenFunction &CGF, const Stmt *S) { | ||||
1047 | if (!CGF.HaveInsertPoint()) | ||||
1048 | return; | ||||
1049 | // 1.2.2 OpenMP Language Terminology | ||||
1050 | // Structured block - An executable statement with a single entry at the | ||||
1051 | // top and a single exit at the bottom. | ||||
1052 | // The point of exit cannot be a branch out of the structured block. | ||||
1053 | // longjmp() and throw() must not violate the entry/exit criteria. | ||||
1054 | CGF.EHStack.pushTerminate(); | ||||
1055 | if (S) | ||||
1056 | CGF.incrementProfileCounter(S); | ||||
1057 | CodeGen(CGF); | ||||
1058 | CGF.EHStack.popTerminate(); | ||||
1059 | } | ||||
1060 | |||||
1061 | LValue CGOpenMPTaskOutlinedRegionInfo::getThreadIDVariableLValue( | ||||
1062 | CodeGenFunction &CGF) { | ||||
1063 | return CGF.MakeAddrLValue(CGF.GetAddrOfLocalVar(getThreadIDVariable()), | ||||
1064 | getThreadIDVariable()->getType(), | ||||
1065 | AlignmentSource::Decl); | ||||
1066 | } | ||||
1067 | |||||
1068 | static FieldDecl *addFieldToRecordDecl(ASTContext &C, DeclContext *DC, | ||||
1069 | QualType FieldTy) { | ||||
1070 | auto *Field = FieldDecl::Create( | ||||
1071 | C, DC, SourceLocation(), SourceLocation(), /*Id=*/nullptr, FieldTy, | ||||
1072 | C.getTrivialTypeSourceInfo(FieldTy, SourceLocation()), | ||||
1073 | /*BW=*/nullptr, /*Mutable=*/false, /*InitStyle=*/ICIS_NoInit); | ||||
1074 | Field->setAccess(AS_public); | ||||
1075 | DC->addDecl(Field); | ||||
1076 | return Field; | ||||
1077 | } | ||||
1078 | |||||
1079 | CGOpenMPRuntime::CGOpenMPRuntime(CodeGenModule &CGM, StringRef FirstSeparator, | ||||
1080 | StringRef Separator) | ||||
1081 | : CGM(CGM), FirstSeparator(FirstSeparator), Separator(Separator), | ||||
1082 | OMPBuilder(CGM.getModule()), OffloadEntriesInfoManager(CGM) { | ||||
1083 | KmpCriticalNameTy = llvm::ArrayType::get(CGM.Int32Ty, /*NumElements*/ 8); | ||||
1084 | |||||
1085 | // Initialize Types used in OpenMPIRBuilder from OMPKinds.def | ||||
1086 | OMPBuilder.initialize(); | ||||
1087 | loadOffloadInfoMetadata(); | ||||
1088 | } | ||||
1089 | |||||
1090 | void CGOpenMPRuntime::clear() { | ||||
1091 | InternalVars.clear(); | ||||
1092 | // Clean non-target variable declarations possibly used only in debug info. | ||||
1093 | for (const auto &Data : EmittedNonTargetVariables) { | ||||
1094 | if (!Data.getValue().pointsToAliveValue()) | ||||
1095 | continue; | ||||
1096 | auto *GV = dyn_cast<llvm::GlobalVariable>(Data.getValue()); | ||||
1097 | if (!GV) | ||||
1098 | continue; | ||||
1099 | if (!GV->isDeclaration() || GV->getNumUses() > 0) | ||||
1100 | continue; | ||||
1101 | GV->eraseFromParent(); | ||||
1102 | } | ||||
1103 | } | ||||
1104 | |||||
1105 | std::string CGOpenMPRuntime::getName(ArrayRef<StringRef> Parts) const { | ||||
1106 | SmallString<128> Buffer; | ||||
1107 | llvm::raw_svector_ostream OS(Buffer); | ||||
1108 | StringRef Sep = FirstSeparator; | ||||
1109 | for (StringRef Part : Parts) { | ||||
1110 | OS << Sep << Part; | ||||
1111 | Sep = Separator; | ||||
1112 | } | ||||
1113 | return std::string(OS.str()); | ||||
1114 | } | ||||
1115 | |||||
1116 | static llvm::Function * | ||||
1117 | emitCombinerOrInitializer(CodeGenModule &CGM, QualType Ty, | ||||
1118 | const Expr *CombinerInitializer, const VarDecl *In, | ||||
1119 | const VarDecl *Out, bool IsCombiner) { | ||||
1120 | // void .omp_combiner.(Ty *in, Ty *out); | ||||
1121 | ASTContext &C = CGM.getContext(); | ||||
1122 | QualType PtrTy = C.getPointerType(Ty).withRestrict(); | ||||
1123 | FunctionArgList Args; | ||||
1124 | ImplicitParamDecl OmpOutParm(C, /*DC=*/nullptr, Out->getLocation(), | ||||
1125 | /*Id=*/nullptr, PtrTy, ImplicitParamDecl::Other); | ||||
1126 | ImplicitParamDecl OmpInParm(C, /*DC=*/nullptr, In->getLocation(), | ||||
1127 | /*Id=*/nullptr, PtrTy, ImplicitParamDecl::Other); | ||||
1128 | Args.push_back(&OmpOutParm); | ||||
1129 | Args.push_back(&OmpInParm); | ||||
1130 | const CGFunctionInfo &FnInfo = | ||||
1131 | CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, Args); | ||||
1132 | llvm::FunctionType *FnTy = CGM.getTypes().GetFunctionType(FnInfo); | ||||
1133 | std::string Name = CGM.getOpenMPRuntime().getName( | ||||
1134 | {IsCombiner ? "omp_combiner" : "omp_initializer", ""}); | ||||
1135 | auto *Fn = llvm::Function::Create(FnTy, llvm::GlobalValue::InternalLinkage, | ||||
1136 | Name, &CGM.getModule()); | ||||
1137 | CGM.SetInternalFunctionAttributes(GlobalDecl(), Fn, FnInfo); | ||||
1138 | if (CGM.getLangOpts().Optimize) { | ||||
1139 | Fn->removeFnAttr(llvm::Attribute::NoInline); | ||||
1140 | Fn->removeFnAttr(llvm::Attribute::OptimizeNone); | ||||
1141 | Fn->addFnAttr(llvm::Attribute::AlwaysInline); | ||||
1142 | } | ||||
1143 | CodeGenFunction CGF(CGM); | ||||
1144 | // Map "T omp_in;" variable to "*omp_in_parm" value in all expressions. | ||||
1145 | // Map "T omp_out;" variable to "*omp_out_parm" value in all expressions. | ||||
1146 | CGF.StartFunction(GlobalDecl(), C.VoidTy, Fn, FnInfo, Args, In->getLocation(), | ||||
1147 | Out->getLocation()); | ||||
1148 | CodeGenFunction::OMPPrivateScope Scope(CGF); | ||||
1149 | Address AddrIn = CGF.GetAddrOfLocalVar(&OmpInParm); | ||||
1150 | Scope.addPrivate(In, [&CGF, AddrIn, PtrTy]() { | ||||
1151 | return CGF.EmitLoadOfPointerLValue(AddrIn, PtrTy->castAs<PointerType>()) | ||||
1152 | .getAddress(CGF); | ||||
1153 | }); | ||||
1154 | Address AddrOut = CGF.GetAddrOfLocalVar(&OmpOutParm); | ||||
1155 | Scope.addPrivate(Out, [&CGF, AddrOut, PtrTy]() { | ||||
1156 | return CGF.EmitLoadOfPointerLValue(AddrOut, PtrTy->castAs<PointerType>()) | ||||
1157 | .getAddress(CGF); | ||||
1158 | }); | ||||
1159 | (void)Scope.Privatize(); | ||||
1160 | if (!IsCombiner && Out->hasInit() && | ||||
1161 | !CGF.isTrivialInitializer(Out->getInit())) { | ||||
1162 | CGF.EmitAnyExprToMem(Out->getInit(), CGF.GetAddrOfLocalVar(Out), | ||||
1163 | Out->getType().getQualifiers(), | ||||
1164 | /*IsInitializer=*/true); | ||||
1165 | } | ||||
1166 | if (CombinerInitializer) | ||||
1167 | CGF.EmitIgnoredExpr(CombinerInitializer); | ||||
1168 | Scope.ForceCleanup(); | ||||
1169 | CGF.FinishFunction(); | ||||
1170 | return Fn; | ||||
1171 | } | ||||
1172 | |||||
1173 | void CGOpenMPRuntime::emitUserDefinedReduction( | ||||
1174 | CodeGenFunction *CGF, const OMPDeclareReductionDecl *D) { | ||||
1175 | if (UDRMap.count(D) > 0) | ||||
1176 | return; | ||||
1177 | llvm::Function *Combiner = emitCombinerOrInitializer( | ||||
1178 | CGM, D->getType(), D->getCombiner(), | ||||
1179 | cast<VarDecl>(cast<DeclRefExpr>(D->getCombinerIn())->getDecl()), | ||||
1180 | cast<VarDecl>(cast<DeclRefExpr>(D->getCombinerOut())->getDecl()), | ||||
1181 | /*IsCombiner=*/true); | ||||
1182 | llvm::Function *Initializer = nullptr; | ||||
1183 | if (const Expr *Init = D->getInitializer()) { | ||||
1184 | Initializer = emitCombinerOrInitializer( | ||||
1185 | CGM, D->getType(), | ||||
1186 | D->getInitializerKind() == OMPDeclareReductionDecl::CallInit ? Init | ||||
1187 | : nullptr, | ||||
1188 | cast<VarDecl>(cast<DeclRefExpr>(D->getInitOrig())->getDecl()), | ||||
1189 | cast<VarDecl>(cast<DeclRefExpr>(D->getInitPriv())->getDecl()), | ||||
1190 | /*IsCombiner=*/false); | ||||
1191 | } | ||||
1192 | UDRMap.try_emplace(D, Combiner, Initializer); | ||||
1193 | if (CGF) { | ||||
1194 | auto &Decls = FunctionUDRMap.FindAndConstruct(CGF->CurFn); | ||||
1195 | Decls.second.push_back(D); | ||||
1196 | } | ||||
1197 | } | ||||
1198 | |||||
1199 | std::pair<llvm::Function *, llvm::Function *> | ||||
1200 | CGOpenMPRuntime::getUserDefinedReduction(const OMPDeclareReductionDecl *D) { | ||||
1201 | auto I = UDRMap.find(D); | ||||
1202 | if (I != UDRMap.end()) | ||||
1203 | return I->second; | ||||
1204 | emitUserDefinedReduction(/*CGF=*/nullptr, D); | ||||
1205 | return UDRMap.lookup(D); | ||||
1206 | } | ||||
1207 | |||||
1208 | namespace { | ||||
1209 | // Temporary RAII solution to perform a push/pop stack event on the OpenMP IR | ||||
1210 | // Builder if one is present. | ||||
1211 | struct PushAndPopStackRAII { | ||||
1212 | PushAndPopStackRAII(llvm::OpenMPIRBuilder *OMPBuilder, CodeGenFunction &CGF, | ||||
1213 | bool HasCancel, llvm::omp::Directive Kind) | ||||
1214 | : OMPBuilder(OMPBuilder) { | ||||
1215 | if (!OMPBuilder) | ||||
1216 | return; | ||||
1217 | |||||
1218 | // The following callback is the crucial part of clangs cleanup process. | ||||
1219 | // | ||||
1220 | // NOTE: | ||||
1221 | // Once the OpenMPIRBuilder is used to create parallel regions (and | ||||
1222 | // similar), the cancellation destination (Dest below) is determined via | ||||
1223 | // IP. That means if we have variables to finalize we split the block at IP, | ||||
1224 | // use the new block (=BB) as destination to build a JumpDest (via | ||||
1225 | // getJumpDestInCurrentScope(BB)) which then is fed to | ||||
1226 | // EmitBranchThroughCleanup. Furthermore, there will not be the need | ||||
1227 | // to push & pop an FinalizationInfo object. | ||||
1228 | // The FiniCB will still be needed but at the point where the | ||||
1229 | // OpenMPIRBuilder is asked to construct a parallel (or similar) construct. | ||||
1230 | auto FiniCB = [&CGF](llvm::OpenMPIRBuilder::InsertPointTy IP) { | ||||
1231 | assert(IP.getBlock()->end() == IP.getPoint() &&((void)0) | ||||
1232 | "Clang CG should cause non-terminated block!")((void)0); | ||||
1233 | CGBuilderTy::InsertPointGuard IPG(CGF.Builder); | ||||
1234 | CGF.Builder.restoreIP(IP); | ||||
1235 | CodeGenFunction::JumpDest Dest = | ||||
1236 | CGF.getOMPCancelDestination(OMPD_parallel); | ||||
1237 | CGF.EmitBranchThroughCleanup(Dest); | ||||
1238 | }; | ||||
1239 | |||||
1240 | // TODO: Remove this once we emit parallel regions through the | ||||
1241 | // OpenMPIRBuilder as it can do this setup internally. | ||||
1242 | llvm::OpenMPIRBuilder::FinalizationInfo FI({FiniCB, Kind, HasCancel}); | ||||
1243 | OMPBuilder->pushFinalizationCB(std::move(FI)); | ||||
1244 | } | ||||
1245 | ~PushAndPopStackRAII() { | ||||
1246 | if (OMPBuilder) | ||||
1247 | OMPBuilder->popFinalizationCB(); | ||||
1248 | } | ||||
1249 | llvm::OpenMPIRBuilder *OMPBuilder; | ||||
1250 | }; | ||||
1251 | } // namespace | ||||
1252 | |||||
1253 | static llvm::Function *emitParallelOrTeamsOutlinedFunction( | ||||
1254 | CodeGenModule &CGM, const OMPExecutableDirective &D, const CapturedStmt *CS, | ||||
1255 | const VarDecl *ThreadIDVar, OpenMPDirectiveKind InnermostKind, | ||||
1256 | const StringRef OutlinedHelperName, const RegionCodeGenTy &CodeGen) { | ||||
1257 | assert(ThreadIDVar->getType()->isPointerType() &&((void)0) | ||||
1258 | "thread id variable must be of type kmp_int32 *")((void)0); | ||||
1259 | CodeGenFunction CGF(CGM, true); | ||||
1260 | bool HasCancel = false; | ||||
1261 | if (const auto *OPD = dyn_cast<OMPParallelDirective>(&D)) | ||||
1262 | HasCancel = OPD->hasCancel(); | ||||
1263 | else if (const auto *OPD = dyn_cast<OMPTargetParallelDirective>(&D)) | ||||
1264 | HasCancel = OPD->hasCancel(); | ||||
1265 | else if (const auto *OPSD = dyn_cast<OMPParallelSectionsDirective>(&D)) | ||||
1266 | HasCancel = OPSD->hasCancel(); | ||||
1267 | else if (const auto *OPFD = dyn_cast<OMPParallelForDirective>(&D)) | ||||
1268 | HasCancel = OPFD->hasCancel(); | ||||
1269 | else if (const auto *OPFD = dyn_cast<OMPTargetParallelForDirective>(&D)) | ||||
1270 | HasCancel = OPFD->hasCancel(); | ||||
1271 | else if (const auto *OPFD = dyn_cast<OMPDistributeParallelForDirective>(&D)) | ||||
1272 | HasCancel = OPFD->hasCancel(); | ||||
1273 | else if (const auto *OPFD = | ||||
1274 | dyn_cast<OMPTeamsDistributeParallelForDirective>(&D)) | ||||
1275 | HasCancel = OPFD->hasCancel(); | ||||
1276 | else if (const auto *OPFD = | ||||
1277 | dyn_cast<OMPTargetTeamsDistributeParallelForDirective>(&D)) | ||||
1278 | HasCancel = OPFD->hasCancel(); | ||||
1279 | |||||
1280 | // TODO: Temporarily inform the OpenMPIRBuilder, if any, about the new | ||||
1281 | // parallel region to make cancellation barriers work properly. | ||||
1282 | llvm::OpenMPIRBuilder &OMPBuilder = CGM.getOpenMPRuntime().getOMPBuilder(); | ||||
1283 | PushAndPopStackRAII PSR(&OMPBuilder, CGF, HasCancel, InnermostKind); | ||||
1284 | CGOpenMPOutlinedRegionInfo CGInfo(*CS, ThreadIDVar, CodeGen, InnermostKind, | ||||
1285 | HasCancel, OutlinedHelperName); | ||||
1286 | CodeGenFunction::CGCapturedStmtRAII CapInfoRAII(CGF, &CGInfo); | ||||
1287 | return CGF.GenerateOpenMPCapturedStmtFunction(*CS, D.getBeginLoc()); | ||||
1288 | } | ||||
1289 | |||||
1290 | llvm::Function *CGOpenMPRuntime::emitParallelOutlinedFunction( | ||||
1291 | const OMPExecutableDirective &D, const VarDecl *ThreadIDVar, | ||||
1292 | OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen) { | ||||
1293 | const CapturedStmt *CS = D.getCapturedStmt(OMPD_parallel); | ||||
1294 | return emitParallelOrTeamsOutlinedFunction( | ||||
1295 | CGM, D, CS, ThreadIDVar, InnermostKind, getOutlinedHelperName(), CodeGen); | ||||
1296 | } | ||||
1297 | |||||
1298 | llvm::Function *CGOpenMPRuntime::emitTeamsOutlinedFunction( | ||||
1299 | const OMPExecutableDirective &D, const VarDecl *ThreadIDVar, | ||||
1300 | OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen) { | ||||
1301 | const CapturedStmt *CS = D.getCapturedStmt(OMPD_teams); | ||||
1302 | return emitParallelOrTeamsOutlinedFunction( | ||||
1303 | CGM, D, CS, ThreadIDVar, InnermostKind, getOutlinedHelperName(), CodeGen); | ||||
1304 | } | ||||
1305 | |||||
1306 | llvm::Function *CGOpenMPRuntime::emitTaskOutlinedFunction( | ||||
1307 | const OMPExecutableDirective &D, const VarDecl *ThreadIDVar, | ||||
1308 | const VarDecl *PartIDVar, const VarDecl *TaskTVar, | ||||
1309 | OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen, | ||||
1310 | bool Tied, unsigned &NumberOfParts) { | ||||
1311 | auto &&UntiedCodeGen = [this, &D, TaskTVar](CodeGenFunction &CGF, | ||||
1312 | PrePostActionTy &) { | ||||
1313 | llvm::Value *ThreadID = getThreadID(CGF, D.getBeginLoc()); | ||||
1314 | llvm::Value *UpLoc = emitUpdateLocation(CGF, D.getBeginLoc()); | ||||
1315 | llvm::Value *TaskArgs[] = { | ||||
1316 | UpLoc, ThreadID, | ||||
1317 | CGF.EmitLoadOfPointerLValue(CGF.GetAddrOfLocalVar(TaskTVar), | ||||
1318 | TaskTVar->getType()->castAs<PointerType>()) | ||||
1319 | .getPointer(CGF)}; | ||||
1320 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
1321 | CGM.getModule(), OMPRTL___kmpc_omp_task), | ||||
1322 | TaskArgs); | ||||
1323 | }; | ||||
1324 | CGOpenMPTaskOutlinedRegionInfo::UntiedTaskActionTy Action(Tied, PartIDVar, | ||||
1325 | UntiedCodeGen); | ||||
1326 | CodeGen.setAction(Action); | ||||
1327 | assert(!ThreadIDVar->getType()->isPointerType() &&((void)0) | ||||
1328 | "thread id variable must be of type kmp_int32 for tasks")((void)0); | ||||
1329 | const OpenMPDirectiveKind Region = | ||||
1330 | isOpenMPTaskLoopDirective(D.getDirectiveKind()) ? OMPD_taskloop | ||||
1331 | : OMPD_task; | ||||
1332 | const CapturedStmt *CS = D.getCapturedStmt(Region); | ||||
1333 | bool HasCancel = false; | ||||
1334 | if (const auto *TD = dyn_cast<OMPTaskDirective>(&D)) | ||||
1335 | HasCancel = TD->hasCancel(); | ||||
1336 | else if (const auto *TD = dyn_cast<OMPTaskLoopDirective>(&D)) | ||||
1337 | HasCancel = TD->hasCancel(); | ||||
1338 | else if (const auto *TD = dyn_cast<OMPMasterTaskLoopDirective>(&D)) | ||||
1339 | HasCancel = TD->hasCancel(); | ||||
1340 | else if (const auto *TD = dyn_cast<OMPParallelMasterTaskLoopDirective>(&D)) | ||||
1341 | HasCancel = TD->hasCancel(); | ||||
1342 | |||||
1343 | CodeGenFunction CGF(CGM, true); | ||||
1344 | CGOpenMPTaskOutlinedRegionInfo CGInfo(*CS, ThreadIDVar, CodeGen, | ||||
1345 | InnermostKind, HasCancel, Action); | ||||
1346 | CodeGenFunction::CGCapturedStmtRAII CapInfoRAII(CGF, &CGInfo); | ||||
1347 | llvm::Function *Res = CGF.GenerateCapturedStmtFunction(*CS); | ||||
1348 | if (!Tied) | ||||
1349 | NumberOfParts = Action.getNumberOfParts(); | ||||
1350 | return Res; | ||||
1351 | } | ||||
1352 | |||||
1353 | static void buildStructValue(ConstantStructBuilder &Fields, CodeGenModule &CGM, | ||||
1354 | const RecordDecl *RD, const CGRecordLayout &RL, | ||||
1355 | ArrayRef<llvm::Constant *> Data) { | ||||
1356 | llvm::StructType *StructTy = RL.getLLVMType(); | ||||
1357 | unsigned PrevIdx = 0; | ||||
1358 | ConstantInitBuilder CIBuilder(CGM); | ||||
1359 | auto DI = Data.begin(); | ||||
1360 | for (const FieldDecl *FD : RD->fields()) { | ||||
1361 | unsigned Idx = RL.getLLVMFieldNo(FD); | ||||
1362 | // Fill the alignment. | ||||
1363 | for (unsigned I = PrevIdx; I < Idx; ++I) | ||||
1364 | Fields.add(llvm::Constant::getNullValue(StructTy->getElementType(I))); | ||||
1365 | PrevIdx = Idx + 1; | ||||
1366 | Fields.add(*DI); | ||||
1367 | ++DI; | ||||
1368 | } | ||||
1369 | } | ||||
1370 | |||||
1371 | template <class... As> | ||||
1372 | static llvm::GlobalVariable * | ||||
1373 | createGlobalStruct(CodeGenModule &CGM, QualType Ty, bool IsConstant, | ||||
1374 | ArrayRef<llvm::Constant *> Data, const Twine &Name, | ||||
1375 | As &&... Args) { | ||||
1376 | const auto *RD = cast<RecordDecl>(Ty->getAsTagDecl()); | ||||
1377 | const CGRecordLayout &RL = CGM.getTypes().getCGRecordLayout(RD); | ||||
1378 | ConstantInitBuilder CIBuilder(CGM); | ||||
1379 | ConstantStructBuilder Fields = CIBuilder.beginStruct(RL.getLLVMType()); | ||||
1380 | buildStructValue(Fields, CGM, RD, RL, Data); | ||||
1381 | return Fields.finishAndCreateGlobal( | ||||
1382 | Name, CGM.getContext().getAlignOfGlobalVarInChars(Ty), IsConstant, | ||||
1383 | std::forward<As>(Args)...); | ||||
1384 | } | ||||
1385 | |||||
1386 | template <typename T> | ||||
1387 | static void | ||||
1388 | createConstantGlobalStructAndAddToParent(CodeGenModule &CGM, QualType Ty, | ||||
1389 | ArrayRef<llvm::Constant *> Data, | ||||
1390 | T &Parent) { | ||||
1391 | const auto *RD = cast<RecordDecl>(Ty->getAsTagDecl()); | ||||
1392 | const CGRecordLayout &RL = CGM.getTypes().getCGRecordLayout(RD); | ||||
1393 | ConstantStructBuilder Fields = Parent.beginStruct(RL.getLLVMType()); | ||||
1394 | buildStructValue(Fields, CGM, RD, RL, Data); | ||||
1395 | Fields.finishAndAddTo(Parent); | ||||
1396 | } | ||||
1397 | |||||
1398 | void CGOpenMPRuntime::setLocThreadIdInsertPt(CodeGenFunction &CGF, | ||||
1399 | bool AtCurrentPoint) { | ||||
1400 | auto &Elem = OpenMPLocThreadIDMap.FindAndConstruct(CGF.CurFn); | ||||
1401 | assert(!Elem.second.ServiceInsertPt && "Insert point is set already.")((void)0); | ||||
1402 | |||||
1403 | llvm::Value *Undef = llvm::UndefValue::get(CGF.Int32Ty); | ||||
1404 | if (AtCurrentPoint) { | ||||
1405 | Elem.second.ServiceInsertPt = new llvm::BitCastInst( | ||||
1406 | Undef, CGF.Int32Ty, "svcpt", CGF.Builder.GetInsertBlock()); | ||||
1407 | } else { | ||||
1408 | Elem.second.ServiceInsertPt = | ||||
1409 | new llvm::BitCastInst(Undef, CGF.Int32Ty, "svcpt"); | ||||
1410 | Elem.second.ServiceInsertPt->insertAfter(CGF.AllocaInsertPt); | ||||
1411 | } | ||||
1412 | } | ||||
1413 | |||||
1414 | void CGOpenMPRuntime::clearLocThreadIdInsertPt(CodeGenFunction &CGF) { | ||||
1415 | auto &Elem = OpenMPLocThreadIDMap.FindAndConstruct(CGF.CurFn); | ||||
1416 | if (Elem.second.ServiceInsertPt) { | ||||
1417 | llvm::Instruction *Ptr = Elem.second.ServiceInsertPt; | ||||
1418 | Elem.second.ServiceInsertPt = nullptr; | ||||
1419 | Ptr->eraseFromParent(); | ||||
1420 | } | ||||
1421 | } | ||||
1422 | |||||
1423 | static StringRef getIdentStringFromSourceLocation(CodeGenFunction &CGF, | ||||
1424 | SourceLocation Loc, | ||||
1425 | SmallString<128> &Buffer) { | ||||
1426 | llvm::raw_svector_ostream OS(Buffer); | ||||
1427 | // Build debug location | ||||
1428 | PresumedLoc PLoc = CGF.getContext().getSourceManager().getPresumedLoc(Loc); | ||||
1429 | OS << ";" << PLoc.getFilename() << ";"; | ||||
1430 | if (const auto *FD = dyn_cast_or_null<FunctionDecl>(CGF.CurFuncDecl)) | ||||
1431 | OS << FD->getQualifiedNameAsString(); | ||||
1432 | OS << ";" << PLoc.getLine() << ";" << PLoc.getColumn() << ";;"; | ||||
1433 | return OS.str(); | ||||
1434 | } | ||||
1435 | |||||
1436 | llvm::Value *CGOpenMPRuntime::emitUpdateLocation(CodeGenFunction &CGF, | ||||
1437 | SourceLocation Loc, | ||||
1438 | unsigned Flags) { | ||||
1439 | llvm::Constant *SrcLocStr; | ||||
1440 | if (CGM.getCodeGenOpts().getDebugInfo() == codegenoptions::NoDebugInfo || | ||||
1441 | Loc.isInvalid()) { | ||||
1442 | SrcLocStr = OMPBuilder.getOrCreateDefaultSrcLocStr(); | ||||
1443 | } else { | ||||
1444 | std::string FunctionName = ""; | ||||
1445 | if (const auto *FD = dyn_cast_or_null<FunctionDecl>(CGF.CurFuncDecl)) | ||||
1446 | FunctionName = FD->getQualifiedNameAsString(); | ||||
1447 | PresumedLoc PLoc = CGF.getContext().getSourceManager().getPresumedLoc(Loc); | ||||
1448 | const char *FileName = PLoc.getFilename(); | ||||
1449 | unsigned Line = PLoc.getLine(); | ||||
1450 | unsigned Column = PLoc.getColumn(); | ||||
1451 | SrcLocStr = OMPBuilder.getOrCreateSrcLocStr(FunctionName.c_str(), FileName, | ||||
1452 | Line, Column); | ||||
1453 | } | ||||
1454 | unsigned Reserved2Flags = getDefaultLocationReserved2Flags(); | ||||
1455 | return OMPBuilder.getOrCreateIdent(SrcLocStr, llvm::omp::IdentFlag(Flags), | ||||
1456 | Reserved2Flags); | ||||
1457 | } | ||||
1458 | |||||
1459 | llvm::Value *CGOpenMPRuntime::getThreadID(CodeGenFunction &CGF, | ||||
1460 | SourceLocation Loc) { | ||||
1461 | assert(CGF.CurFn && "No function in current CodeGenFunction.")((void)0); | ||||
1462 | // If the OpenMPIRBuilder is used we need to use it for all thread id calls as | ||||
1463 | // the clang invariants used below might be broken. | ||||
1464 | if (CGM.getLangOpts().OpenMPIRBuilder) { | ||||
1465 | SmallString<128> Buffer; | ||||
1466 | OMPBuilder.updateToLocation(CGF.Builder.saveIP()); | ||||
1467 | auto *SrcLocStr = OMPBuilder.getOrCreateSrcLocStr( | ||||
1468 | getIdentStringFromSourceLocation(CGF, Loc, Buffer)); | ||||
1469 | return OMPBuilder.getOrCreateThreadID( | ||||
1470 | OMPBuilder.getOrCreateIdent(SrcLocStr)); | ||||
1471 | } | ||||
1472 | |||||
1473 | llvm::Value *ThreadID = nullptr; | ||||
1474 | // Check whether we've already cached a load of the thread id in this | ||||
1475 | // function. | ||||
1476 | auto I = OpenMPLocThreadIDMap.find(CGF.CurFn); | ||||
1477 | if (I != OpenMPLocThreadIDMap.end()) { | ||||
1478 | ThreadID = I->second.ThreadID; | ||||
1479 | if (ThreadID != nullptr) | ||||
1480 | return ThreadID; | ||||
1481 | } | ||||
1482 | // If exceptions are enabled, do not use parameter to avoid possible crash. | ||||
1483 | if (auto *OMPRegionInfo = | ||||
1484 | dyn_cast_or_null<CGOpenMPRegionInfo>(CGF.CapturedStmtInfo)) { | ||||
1485 | if (OMPRegionInfo->getThreadIDVariable()) { | ||||
1486 | // Check if this an outlined function with thread id passed as argument. | ||||
1487 | LValue LVal = OMPRegionInfo->getThreadIDVariableLValue(CGF); | ||||
1488 | llvm::BasicBlock *TopBlock = CGF.AllocaInsertPt->getParent(); | ||||
1489 | if (!CGF.EHStack.requiresLandingPad() || !CGF.getLangOpts().Exceptions || | ||||
1490 | !CGF.getLangOpts().CXXExceptions || | ||||
1491 | CGF.Builder.GetInsertBlock() == TopBlock || | ||||
1492 | !isa<llvm::Instruction>(LVal.getPointer(CGF)) || | ||||
1493 | cast<llvm::Instruction>(LVal.getPointer(CGF))->getParent() == | ||||
1494 | TopBlock || | ||||
1495 | cast<llvm::Instruction>(LVal.getPointer(CGF))->getParent() == | ||||
1496 | CGF.Builder.GetInsertBlock()) { | ||||
1497 | ThreadID = CGF.EmitLoadOfScalar(LVal, Loc); | ||||
1498 | // If value loaded in entry block, cache it and use it everywhere in | ||||
1499 | // function. | ||||
1500 | if (CGF.Builder.GetInsertBlock() == TopBlock) { | ||||
1501 | auto &Elem = OpenMPLocThreadIDMap.FindAndConstruct(CGF.CurFn); | ||||
1502 | Elem.second.ThreadID = ThreadID; | ||||
1503 | } | ||||
1504 | return ThreadID; | ||||
1505 | } | ||||
1506 | } | ||||
1507 | } | ||||
1508 | |||||
1509 | // This is not an outlined function region - need to call __kmpc_int32 | ||||
1510 | // kmpc_global_thread_num(ident_t *loc). | ||||
1511 | // Generate thread id value and cache this value for use across the | ||||
1512 | // function. | ||||
1513 | auto &Elem = OpenMPLocThreadIDMap.FindAndConstruct(CGF.CurFn); | ||||
1514 | if (!Elem.second.ServiceInsertPt) | ||||
1515 | setLocThreadIdInsertPt(CGF); | ||||
1516 | CGBuilderTy::InsertPointGuard IPG(CGF.Builder); | ||||
1517 | CGF.Builder.SetInsertPoint(Elem.second.ServiceInsertPt); | ||||
1518 | llvm::CallInst *Call = CGF.Builder.CreateCall( | ||||
1519 | OMPBuilder.getOrCreateRuntimeFunction(CGM.getModule(), | ||||
1520 | OMPRTL___kmpc_global_thread_num), | ||||
1521 | emitUpdateLocation(CGF, Loc)); | ||||
1522 | Call->setCallingConv(CGF.getRuntimeCC()); | ||||
1523 | Elem.second.ThreadID = Call; | ||||
1524 | return Call; | ||||
1525 | } | ||||
1526 | |||||
1527 | void CGOpenMPRuntime::functionFinished(CodeGenFunction &CGF) { | ||||
1528 | assert(CGF.CurFn && "No function in current CodeGenFunction.")((void)0); | ||||
1529 | if (OpenMPLocThreadIDMap.count(CGF.CurFn)) { | ||||
1530 | clearLocThreadIdInsertPt(CGF); | ||||
1531 | OpenMPLocThreadIDMap.erase(CGF.CurFn); | ||||
1532 | } | ||||
1533 | if (FunctionUDRMap.count(CGF.CurFn) > 0) { | ||||
1534 | for(const auto *D : FunctionUDRMap[CGF.CurFn]) | ||||
1535 | UDRMap.erase(D); | ||||
1536 | FunctionUDRMap.erase(CGF.CurFn); | ||||
1537 | } | ||||
1538 | auto I = FunctionUDMMap.find(CGF.CurFn); | ||||
1539 | if (I != FunctionUDMMap.end()) { | ||||
1540 | for(const auto *D : I->second) | ||||
1541 | UDMMap.erase(D); | ||||
1542 | FunctionUDMMap.erase(I); | ||||
1543 | } | ||||
1544 | LastprivateConditionalToTypes.erase(CGF.CurFn); | ||||
1545 | FunctionToUntiedTaskStackMap.erase(CGF.CurFn); | ||||
1546 | } | ||||
1547 | |||||
1548 | llvm::Type *CGOpenMPRuntime::getIdentTyPointerTy() { | ||||
1549 | return OMPBuilder.IdentPtr; | ||||
1550 | } | ||||
1551 | |||||
1552 | llvm::Type *CGOpenMPRuntime::getKmpc_MicroPointerTy() { | ||||
1553 | if (!Kmpc_MicroTy) { | ||||
1554 | // Build void (*kmpc_micro)(kmp_int32 *global_tid, kmp_int32 *bound_tid,...) | ||||
1555 | llvm::Type *MicroParams[] = {llvm::PointerType::getUnqual(CGM.Int32Ty), | ||||
1556 | llvm::PointerType::getUnqual(CGM.Int32Ty)}; | ||||
1557 | Kmpc_MicroTy = llvm::FunctionType::get(CGM.VoidTy, MicroParams, true); | ||||
1558 | } | ||||
1559 | return llvm::PointerType::getUnqual(Kmpc_MicroTy); | ||||
1560 | } | ||||
1561 | |||||
1562 | llvm::FunctionCallee | ||||
1563 | CGOpenMPRuntime::createForStaticInitFunction(unsigned IVSize, bool IVSigned) { | ||||
1564 | assert((IVSize == 32 || IVSize == 64) &&((void)0) | ||||
1565 | "IV size is not compatible with the omp runtime")((void)0); | ||||
1566 | StringRef Name = IVSize == 32 ? (IVSigned ? "__kmpc_for_static_init_4" | ||||
1567 | : "__kmpc_for_static_init_4u") | ||||
1568 | : (IVSigned ? "__kmpc_for_static_init_8" | ||||
1569 | : "__kmpc_for_static_init_8u"); | ||||
1570 | llvm::Type *ITy = IVSize == 32 ? CGM.Int32Ty : CGM.Int64Ty; | ||||
1571 | auto *PtrTy = llvm::PointerType::getUnqual(ITy); | ||||
1572 | llvm::Type *TypeParams[] = { | ||||
1573 | getIdentTyPointerTy(), // loc | ||||
1574 | CGM.Int32Ty, // tid | ||||
1575 | CGM.Int32Ty, // schedtype | ||||
1576 | llvm::PointerType::getUnqual(CGM.Int32Ty), // p_lastiter | ||||
1577 | PtrTy, // p_lower | ||||
1578 | PtrTy, // p_upper | ||||
1579 | PtrTy, // p_stride | ||||
1580 | ITy, // incr | ||||
1581 | ITy // chunk | ||||
1582 | }; | ||||
1583 | auto *FnTy = | ||||
1584 | llvm::FunctionType::get(CGM.VoidTy, TypeParams, /*isVarArg*/ false); | ||||
1585 | return CGM.CreateRuntimeFunction(FnTy, Name); | ||||
1586 | } | ||||
1587 | |||||
1588 | llvm::FunctionCallee | ||||
1589 | CGOpenMPRuntime::createDispatchInitFunction(unsigned IVSize, bool IVSigned) { | ||||
1590 | assert((IVSize == 32 || IVSize == 64) &&((void)0) | ||||
1591 | "IV size is not compatible with the omp runtime")((void)0); | ||||
1592 | StringRef Name = | ||||
1593 | IVSize == 32 | ||||
1594 | ? (IVSigned ? "__kmpc_dispatch_init_4" : "__kmpc_dispatch_init_4u") | ||||
1595 | : (IVSigned ? "__kmpc_dispatch_init_8" : "__kmpc_dispatch_init_8u"); | ||||
1596 | llvm::Type *ITy = IVSize == 32 ? CGM.Int32Ty : CGM.Int64Ty; | ||||
1597 | llvm::Type *TypeParams[] = { getIdentTyPointerTy(), // loc | ||||
1598 | CGM.Int32Ty, // tid | ||||
1599 | CGM.Int32Ty, // schedtype | ||||
1600 | ITy, // lower | ||||
1601 | ITy, // upper | ||||
1602 | ITy, // stride | ||||
1603 | ITy // chunk | ||||
1604 | }; | ||||
1605 | auto *FnTy = | ||||
1606 | llvm::FunctionType::get(CGM.VoidTy, TypeParams, /*isVarArg*/ false); | ||||
1607 | return CGM.CreateRuntimeFunction(FnTy, Name); | ||||
1608 | } | ||||
1609 | |||||
1610 | llvm::FunctionCallee | ||||
1611 | CGOpenMPRuntime::createDispatchFiniFunction(unsigned IVSize, bool IVSigned) { | ||||
1612 | assert((IVSize == 32 || IVSize == 64) &&((void)0) | ||||
1613 | "IV size is not compatible with the omp runtime")((void)0); | ||||
1614 | StringRef Name = | ||||
1615 | IVSize == 32 | ||||
1616 | ? (IVSigned ? "__kmpc_dispatch_fini_4" : "__kmpc_dispatch_fini_4u") | ||||
1617 | : (IVSigned ? "__kmpc_dispatch_fini_8" : "__kmpc_dispatch_fini_8u"); | ||||
1618 | llvm::Type *TypeParams[] = { | ||||
1619 | getIdentTyPointerTy(), // loc | ||||
1620 | CGM.Int32Ty, // tid | ||||
1621 | }; | ||||
1622 | auto *FnTy = | ||||
1623 | llvm::FunctionType::get(CGM.VoidTy, TypeParams, /*isVarArg=*/false); | ||||
1624 | return CGM.CreateRuntimeFunction(FnTy, Name); | ||||
1625 | } | ||||
1626 | |||||
1627 | llvm::FunctionCallee | ||||
1628 | CGOpenMPRuntime::createDispatchNextFunction(unsigned IVSize, bool IVSigned) { | ||||
1629 | assert((IVSize == 32 || IVSize == 64) &&((void)0) | ||||
1630 | "IV size is not compatible with the omp runtime")((void)0); | ||||
1631 | StringRef Name = | ||||
1632 | IVSize == 32 | ||||
1633 | ? (IVSigned ? "__kmpc_dispatch_next_4" : "__kmpc_dispatch_next_4u") | ||||
1634 | : (IVSigned ? "__kmpc_dispatch_next_8" : "__kmpc_dispatch_next_8u"); | ||||
1635 | llvm::Type *ITy = IVSize == 32 ? CGM.Int32Ty : CGM.Int64Ty; | ||||
1636 | auto *PtrTy = llvm::PointerType::getUnqual(ITy); | ||||
1637 | llvm::Type *TypeParams[] = { | ||||
1638 | getIdentTyPointerTy(), // loc | ||||
1639 | CGM.Int32Ty, // tid | ||||
1640 | llvm::PointerType::getUnqual(CGM.Int32Ty), // p_lastiter | ||||
1641 | PtrTy, // p_lower | ||||
1642 | PtrTy, // p_upper | ||||
1643 | PtrTy // p_stride | ||||
1644 | }; | ||||
1645 | auto *FnTy = | ||||
1646 | llvm::FunctionType::get(CGM.Int32Ty, TypeParams, /*isVarArg*/ false); | ||||
1647 | return CGM.CreateRuntimeFunction(FnTy, Name); | ||||
1648 | } | ||||
1649 | |||||
1650 | /// Obtain information that uniquely identifies a target entry. This | ||||
1651 | /// consists of the file and device IDs as well as line number associated with | ||||
1652 | /// the relevant entry source location. | ||||
1653 | static void getTargetEntryUniqueInfo(ASTContext &C, SourceLocation Loc, | ||||
1654 | unsigned &DeviceID, unsigned &FileID, | ||||
1655 | unsigned &LineNum) { | ||||
1656 | SourceManager &SM = C.getSourceManager(); | ||||
1657 | |||||
1658 | // The loc should be always valid and have a file ID (the user cannot use | ||||
1659 | // #pragma directives in macros) | ||||
1660 | |||||
1661 | assert(Loc.isValid() && "Source location is expected to be always valid.")((void)0); | ||||
1662 | |||||
1663 | PresumedLoc PLoc = SM.getPresumedLoc(Loc); | ||||
1664 | assert(PLoc.isValid() && "Source location is expected to be always valid.")((void)0); | ||||
1665 | |||||
1666 | llvm::sys::fs::UniqueID ID; | ||||
1667 | if (auto EC = llvm::sys::fs::getUniqueID(PLoc.getFilename(), ID)) { | ||||
1668 | PLoc = SM.getPresumedLoc(Loc, /*UseLineDirectives=*/false); | ||||
1669 | assert(PLoc.isValid() && "Source location is expected to be always valid.")((void)0); | ||||
1670 | if (auto EC = llvm::sys::fs::getUniqueID(PLoc.getFilename(), ID)) | ||||
1671 | SM.getDiagnostics().Report(diag::err_cannot_open_file) | ||||
1672 | << PLoc.getFilename() << EC.message(); | ||||
1673 | } | ||||
1674 | |||||
1675 | DeviceID = ID.getDevice(); | ||||
1676 | FileID = ID.getFile(); | ||||
1677 | LineNum = PLoc.getLine(); | ||||
1678 | } | ||||
1679 | |||||
1680 | Address CGOpenMPRuntime::getAddrOfDeclareTargetVar(const VarDecl *VD) { | ||||
1681 | if (CGM.getLangOpts().OpenMPSimd) | ||||
1682 | return Address::invalid(); | ||||
1683 | llvm::Optional<OMPDeclareTargetDeclAttr::MapTypeTy> Res = | ||||
1684 | OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD); | ||||
1685 | if (Res && (*Res == OMPDeclareTargetDeclAttr::MT_Link || | ||||
1686 | (*Res == OMPDeclareTargetDeclAttr::MT_To && | ||||
1687 | HasRequiresUnifiedSharedMemory))) { | ||||
1688 | SmallString<64> PtrName; | ||||
1689 | { | ||||
1690 | llvm::raw_svector_ostream OS(PtrName); | ||||
1691 | OS << CGM.getMangledName(GlobalDecl(VD)); | ||||
1692 | if (!VD->isExternallyVisible()) { | ||||
1693 | unsigned DeviceID, FileID, Line; | ||||
1694 | getTargetEntryUniqueInfo(CGM.getContext(), | ||||
1695 | VD->getCanonicalDecl()->getBeginLoc(), | ||||
1696 | DeviceID, FileID, Line); | ||||
1697 | OS << llvm::format("_%x", FileID); | ||||
1698 | } | ||||
1699 | OS << "_decl_tgt_ref_ptr"; | ||||
1700 | } | ||||
1701 | llvm::Value *Ptr = CGM.getModule().getNamedValue(PtrName); | ||||
1702 | if (!Ptr) { | ||||
1703 | QualType PtrTy = CGM.getContext().getPointerType(VD->getType()); | ||||
1704 | Ptr = getOrCreateInternalVariable(CGM.getTypes().ConvertTypeForMem(PtrTy), | ||||
1705 | PtrName); | ||||
1706 | |||||
1707 | auto *GV = cast<llvm::GlobalVariable>(Ptr); | ||||
1708 | GV->setLinkage(llvm::GlobalValue::WeakAnyLinkage); | ||||
1709 | |||||
1710 | if (!CGM.getLangOpts().OpenMPIsDevice) | ||||
1711 | GV->setInitializer(CGM.GetAddrOfGlobal(VD)); | ||||
1712 | registerTargetGlobalVariable(VD, cast<llvm::Constant>(Ptr)); | ||||
1713 | } | ||||
1714 | return Address(Ptr, CGM.getContext().getDeclAlign(VD)); | ||||
1715 | } | ||||
1716 | return Address::invalid(); | ||||
1717 | } | ||||
1718 | |||||
1719 | llvm::Constant * | ||||
1720 | CGOpenMPRuntime::getOrCreateThreadPrivateCache(const VarDecl *VD) { | ||||
1721 | assert(!CGM.getLangOpts().OpenMPUseTLS ||((void)0) | ||||
1722 | !CGM.getContext().getTargetInfo().isTLSSupported())((void)0); | ||||
1723 | // Lookup the entry, lazily creating it if necessary. | ||||
1724 | std::string Suffix = getName({"cache", ""}); | ||||
1725 | return getOrCreateInternalVariable( | ||||
1726 | CGM.Int8PtrPtrTy, Twine(CGM.getMangledName(VD)).concat(Suffix)); | ||||
1727 | } | ||||
1728 | |||||
1729 | Address CGOpenMPRuntime::getAddrOfThreadPrivate(CodeGenFunction &CGF, | ||||
1730 | const VarDecl *VD, | ||||
1731 | Address VDAddr, | ||||
1732 | SourceLocation Loc) { | ||||
1733 | if (CGM.getLangOpts().OpenMPUseTLS && | ||||
1734 | CGM.getContext().getTargetInfo().isTLSSupported()) | ||||
1735 | return VDAddr; | ||||
1736 | |||||
1737 | llvm::Type *VarTy = VDAddr.getElementType(); | ||||
1738 | llvm::Value *Args[] = {emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc), | ||||
1739 | CGF.Builder.CreatePointerCast(VDAddr.getPointer(), | ||||
1740 | CGM.Int8PtrTy), | ||||
1741 | CGM.getSize(CGM.GetTargetTypeStoreSize(VarTy)), | ||||
1742 | getOrCreateThreadPrivateCache(VD)}; | ||||
1743 | return Address(CGF.EmitRuntimeCall( | ||||
1744 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
1745 | CGM.getModule(), OMPRTL___kmpc_threadprivate_cached), | ||||
1746 | Args), | ||||
1747 | VDAddr.getAlignment()); | ||||
1748 | } | ||||
1749 | |||||
1750 | void CGOpenMPRuntime::emitThreadPrivateVarInit( | ||||
1751 | CodeGenFunction &CGF, Address VDAddr, llvm::Value *Ctor, | ||||
1752 | llvm::Value *CopyCtor, llvm::Value *Dtor, SourceLocation Loc) { | ||||
1753 | // Call kmp_int32 __kmpc_global_thread_num(&loc) to init OpenMP runtime | ||||
1754 | // library. | ||||
1755 | llvm::Value *OMPLoc = emitUpdateLocation(CGF, Loc); | ||||
1756 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
1757 | CGM.getModule(), OMPRTL___kmpc_global_thread_num), | ||||
1758 | OMPLoc); | ||||
1759 | // Call __kmpc_threadprivate_register(&loc, &var, ctor, cctor/*NULL*/, dtor) | ||||
1760 | // to register constructor/destructor for variable. | ||||
1761 | llvm::Value *Args[] = { | ||||
1762 | OMPLoc, CGF.Builder.CreatePointerCast(VDAddr.getPointer(), CGM.VoidPtrTy), | ||||
1763 | Ctor, CopyCtor, Dtor}; | ||||
1764 | CGF.EmitRuntimeCall( | ||||
1765 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
1766 | CGM.getModule(), OMPRTL___kmpc_threadprivate_register), | ||||
1767 | Args); | ||||
1768 | } | ||||
1769 | |||||
1770 | llvm::Function *CGOpenMPRuntime::emitThreadPrivateVarDefinition( | ||||
1771 | const VarDecl *VD, Address VDAddr, SourceLocation Loc, | ||||
1772 | bool PerformInit, CodeGenFunction *CGF) { | ||||
1773 | if (CGM.getLangOpts().OpenMPUseTLS && | ||||
1774 | CGM.getContext().getTargetInfo().isTLSSupported()) | ||||
1775 | return nullptr; | ||||
1776 | |||||
1777 | VD = VD->getDefinition(CGM.getContext()); | ||||
1778 | if (VD && ThreadPrivateWithDefinition.insert(CGM.getMangledName(VD)).second) { | ||||
1779 | QualType ASTTy = VD->getType(); | ||||
1780 | |||||
1781 | llvm::Value *Ctor = nullptr, *CopyCtor = nullptr, *Dtor = nullptr; | ||||
1782 | const Expr *Init = VD->getAnyInitializer(); | ||||
1783 | if (CGM.getLangOpts().CPlusPlus && PerformInit) { | ||||
1784 | // Generate function that re-emits the declaration's initializer into the | ||||
1785 | // threadprivate copy of the variable VD | ||||
1786 | CodeGenFunction CtorCGF(CGM); | ||||
1787 | FunctionArgList Args; | ||||
1788 | ImplicitParamDecl Dst(CGM.getContext(), /*DC=*/nullptr, Loc, | ||||
1789 | /*Id=*/nullptr, CGM.getContext().VoidPtrTy, | ||||
1790 | ImplicitParamDecl::Other); | ||||
1791 | Args.push_back(&Dst); | ||||
1792 | |||||
1793 | const auto &FI = CGM.getTypes().arrangeBuiltinFunctionDeclaration( | ||||
1794 | CGM.getContext().VoidPtrTy, Args); | ||||
1795 | llvm::FunctionType *FTy = CGM.getTypes().GetFunctionType(FI); | ||||
1796 | std::string Name = getName({"__kmpc_global_ctor_", ""}); | ||||
1797 | llvm::Function *Fn = | ||||
1798 | CGM.CreateGlobalInitOrCleanUpFunction(FTy, Name, FI, Loc); | ||||
1799 | CtorCGF.StartFunction(GlobalDecl(), CGM.getContext().VoidPtrTy, Fn, FI, | ||||
1800 | Args, Loc, Loc); | ||||
1801 | llvm::Value *ArgVal = CtorCGF.EmitLoadOfScalar( | ||||
1802 | CtorCGF.GetAddrOfLocalVar(&Dst), /*Volatile=*/false, | ||||
1803 | CGM.getContext().VoidPtrTy, Dst.getLocation()); | ||||
1804 | Address Arg = Address(ArgVal, VDAddr.getAlignment()); | ||||
1805 | Arg = CtorCGF.Builder.CreateElementBitCast( | ||||
1806 | Arg, CtorCGF.ConvertTypeForMem(ASTTy)); | ||||
1807 | CtorCGF.EmitAnyExprToMem(Init, Arg, Init->getType().getQualifiers(), | ||||
1808 | /*IsInitializer=*/true); | ||||
1809 | ArgVal = CtorCGF.EmitLoadOfScalar( | ||||
1810 | CtorCGF.GetAddrOfLocalVar(&Dst), /*Volatile=*/false, | ||||
1811 | CGM.getContext().VoidPtrTy, Dst.getLocation()); | ||||
1812 | CtorCGF.Builder.CreateStore(ArgVal, CtorCGF.ReturnValue); | ||||
1813 | CtorCGF.FinishFunction(); | ||||
1814 | Ctor = Fn; | ||||
1815 | } | ||||
1816 | if (VD->getType().isDestructedType() != QualType::DK_none) { | ||||
1817 | // Generate function that emits destructor call for the threadprivate copy | ||||
1818 | // of the variable VD | ||||
1819 | CodeGenFunction DtorCGF(CGM); | ||||
1820 | FunctionArgList Args; | ||||
1821 | ImplicitParamDecl Dst(CGM.getContext(), /*DC=*/nullptr, Loc, | ||||
1822 | /*Id=*/nullptr, CGM.getContext().VoidPtrTy, | ||||
1823 | ImplicitParamDecl::Other); | ||||
1824 | Args.push_back(&Dst); | ||||
1825 | |||||
1826 | const auto &FI = CGM.getTypes().arrangeBuiltinFunctionDeclaration( | ||||
1827 | CGM.getContext().VoidTy, Args); | ||||
1828 | llvm::FunctionType *FTy = CGM.getTypes().GetFunctionType(FI); | ||||
1829 | std::string Name = getName({"__kmpc_global_dtor_", ""}); | ||||
1830 | llvm::Function *Fn = | ||||
1831 | CGM.CreateGlobalInitOrCleanUpFunction(FTy, Name, FI, Loc); | ||||
1832 | auto NL = ApplyDebugLocation::CreateEmpty(DtorCGF); | ||||
1833 | DtorCGF.StartFunction(GlobalDecl(), CGM.getContext().VoidTy, Fn, FI, Args, | ||||
1834 | Loc, Loc); | ||||
1835 | // Create a scope with an artificial location for the body of this function. | ||||
1836 | auto AL = ApplyDebugLocation::CreateArtificial(DtorCGF); | ||||
1837 | llvm::Value *ArgVal = DtorCGF.EmitLoadOfScalar( | ||||
1838 | DtorCGF.GetAddrOfLocalVar(&Dst), | ||||
1839 | /*Volatile=*/false, CGM.getContext().VoidPtrTy, Dst.getLocation()); | ||||
1840 | DtorCGF.emitDestroy(Address(ArgVal, VDAddr.getAlignment()), ASTTy, | ||||
1841 | DtorCGF.getDestroyer(ASTTy.isDestructedType()), | ||||
1842 | DtorCGF.needsEHCleanup(ASTTy.isDestructedType())); | ||||
1843 | DtorCGF.FinishFunction(); | ||||
1844 | Dtor = Fn; | ||||
1845 | } | ||||
1846 | // Do not emit init function if it is not required. | ||||
1847 | if (!Ctor && !Dtor) | ||||
1848 | return nullptr; | ||||
1849 | |||||
1850 | llvm::Type *CopyCtorTyArgs[] = {CGM.VoidPtrTy, CGM.VoidPtrTy}; | ||||
1851 | auto *CopyCtorTy = llvm::FunctionType::get(CGM.VoidPtrTy, CopyCtorTyArgs, | ||||
1852 | /*isVarArg=*/false) | ||||
1853 | ->getPointerTo(); | ||||
1854 | // Copying constructor for the threadprivate variable. | ||||
1855 | // Must be NULL - reserved by runtime, but currently it requires that this | ||||
1856 | // parameter is always NULL. Otherwise it fires assertion. | ||||
1857 | CopyCtor = llvm::Constant::getNullValue(CopyCtorTy); | ||||
1858 | if (Ctor == nullptr) { | ||||
1859 | auto *CtorTy = llvm::FunctionType::get(CGM.VoidPtrTy, CGM.VoidPtrTy, | ||||
1860 | /*isVarArg=*/false) | ||||
1861 | ->getPointerTo(); | ||||
1862 | Ctor = llvm::Constant::getNullValue(CtorTy); | ||||
1863 | } | ||||
1864 | if (Dtor == nullptr) { | ||||
1865 | auto *DtorTy = llvm::FunctionType::get(CGM.VoidTy, CGM.VoidPtrTy, | ||||
1866 | /*isVarArg=*/false) | ||||
1867 | ->getPointerTo(); | ||||
1868 | Dtor = llvm::Constant::getNullValue(DtorTy); | ||||
1869 | } | ||||
1870 | if (!CGF) { | ||||
1871 | auto *InitFunctionTy = | ||||
1872 | llvm::FunctionType::get(CGM.VoidTy, /*isVarArg*/ false); | ||||
1873 | std::string Name = getName({"__omp_threadprivate_init_", ""}); | ||||
1874 | llvm::Function *InitFunction = CGM.CreateGlobalInitOrCleanUpFunction( | ||||
1875 | InitFunctionTy, Name, CGM.getTypes().arrangeNullaryFunction()); | ||||
1876 | CodeGenFunction InitCGF(CGM); | ||||
1877 | FunctionArgList ArgList; | ||||
1878 | InitCGF.StartFunction(GlobalDecl(), CGM.getContext().VoidTy, InitFunction, | ||||
1879 | CGM.getTypes().arrangeNullaryFunction(), ArgList, | ||||
1880 | Loc, Loc); | ||||
1881 | emitThreadPrivateVarInit(InitCGF, VDAddr, Ctor, CopyCtor, Dtor, Loc); | ||||
1882 | InitCGF.FinishFunction(); | ||||
1883 | return InitFunction; | ||||
1884 | } | ||||
1885 | emitThreadPrivateVarInit(*CGF, VDAddr, Ctor, CopyCtor, Dtor, Loc); | ||||
1886 | } | ||||
1887 | return nullptr; | ||||
1888 | } | ||||
1889 | |||||
1890 | bool CGOpenMPRuntime::emitDeclareTargetVarDefinition(const VarDecl *VD, | ||||
1891 | llvm::GlobalVariable *Addr, | ||||
1892 | bool PerformInit) { | ||||
1893 | if (CGM.getLangOpts().OMPTargetTriples.empty() && | ||||
1894 | !CGM.getLangOpts().OpenMPIsDevice) | ||||
1895 | return false; | ||||
1896 | Optional<OMPDeclareTargetDeclAttr::MapTypeTy> Res = | ||||
1897 | OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD); | ||||
1898 | if (!Res || *Res == OMPDeclareTargetDeclAttr::MT_Link || | ||||
1899 | (*Res == OMPDeclareTargetDeclAttr::MT_To && | ||||
1900 | HasRequiresUnifiedSharedMemory)) | ||||
1901 | return CGM.getLangOpts().OpenMPIsDevice; | ||||
1902 | VD = VD->getDefinition(CGM.getContext()); | ||||
1903 | assert(VD && "Unknown VarDecl")((void)0); | ||||
1904 | |||||
1905 | if (!DeclareTargetWithDefinition.insert(CGM.getMangledName(VD)).second) | ||||
1906 | return CGM.getLangOpts().OpenMPIsDevice; | ||||
1907 | |||||
1908 | QualType ASTTy = VD->getType(); | ||||
1909 | SourceLocation Loc = VD->getCanonicalDecl()->getBeginLoc(); | ||||
1910 | |||||
1911 | // Produce the unique prefix to identify the new target regions. We use | ||||
1912 | // the source location of the variable declaration which we know to not | ||||
1913 | // conflict with any target region. | ||||
1914 | unsigned DeviceID; | ||||
1915 | unsigned FileID; | ||||
1916 | unsigned Line; | ||||
1917 | getTargetEntryUniqueInfo(CGM.getContext(), Loc, DeviceID, FileID, Line); | ||||
1918 | SmallString<128> Buffer, Out; | ||||
1919 | { | ||||
1920 | llvm::raw_svector_ostream OS(Buffer); | ||||
1921 | OS << "__omp_offloading_" << llvm::format("_%x", DeviceID) | ||||
1922 | << llvm::format("_%x_", FileID) << VD->getName() << "_l" << Line; | ||||
1923 | } | ||||
1924 | |||||
1925 | const Expr *Init = VD->getAnyInitializer(); | ||||
1926 | if (CGM.getLangOpts().CPlusPlus && PerformInit) { | ||||
1927 | llvm::Constant *Ctor; | ||||
1928 | llvm::Constant *ID; | ||||
1929 | if (CGM.getLangOpts().OpenMPIsDevice) { | ||||
1930 | // Generate function that re-emits the declaration's initializer into | ||||
1931 | // the threadprivate copy of the variable VD | ||||
1932 | CodeGenFunction CtorCGF(CGM); | ||||
1933 | |||||
1934 | const CGFunctionInfo &FI = CGM.getTypes().arrangeNullaryFunction(); | ||||
1935 | llvm::FunctionType *FTy = CGM.getTypes().GetFunctionType(FI); | ||||
1936 | llvm::Function *Fn = CGM.CreateGlobalInitOrCleanUpFunction( | ||||
1937 | FTy, Twine(Buffer, "_ctor"), FI, Loc); | ||||
1938 | auto NL = ApplyDebugLocation::CreateEmpty(CtorCGF); | ||||
1939 | CtorCGF.StartFunction(GlobalDecl(), CGM.getContext().VoidTy, Fn, FI, | ||||
1940 | FunctionArgList(), Loc, Loc); | ||||
1941 | auto AL = ApplyDebugLocation::CreateArtificial(CtorCGF); | ||||
1942 | CtorCGF.EmitAnyExprToMem(Init, | ||||
1943 | Address(Addr, CGM.getContext().getDeclAlign(VD)), | ||||
1944 | Init->getType().getQualifiers(), | ||||
1945 | /*IsInitializer=*/true); | ||||
1946 | CtorCGF.FinishFunction(); | ||||
1947 | Ctor = Fn; | ||||
1948 | ID = llvm::ConstantExpr::getBitCast(Fn, CGM.Int8PtrTy); | ||||
1949 | CGM.addUsedGlobal(cast<llvm::GlobalValue>(Ctor)); | ||||
1950 | } else { | ||||
1951 | Ctor = new llvm::GlobalVariable( | ||||
1952 | CGM.getModule(), CGM.Int8Ty, /*isConstant=*/true, | ||||
1953 | llvm::GlobalValue::PrivateLinkage, | ||||
1954 | llvm::Constant::getNullValue(CGM.Int8Ty), Twine(Buffer, "_ctor")); | ||||
1955 | ID = Ctor; | ||||
1956 | } | ||||
1957 | |||||
1958 | // Register the information for the entry associated with the constructor. | ||||
1959 | Out.clear(); | ||||
1960 | OffloadEntriesInfoManager.registerTargetRegionEntryInfo( | ||||
1961 | DeviceID, FileID, Twine(Buffer, "_ctor").toStringRef(Out), Line, Ctor, | ||||
1962 | ID, OffloadEntriesInfoManagerTy::OMPTargetRegionEntryCtor); | ||||
1963 | } | ||||
1964 | if (VD->getType().isDestructedType() != QualType::DK_none) { | ||||
1965 | llvm::Constant *Dtor; | ||||
1966 | llvm::Constant *ID; | ||||
1967 | if (CGM.getLangOpts().OpenMPIsDevice) { | ||||
1968 | // Generate function that emits destructor call for the threadprivate | ||||
1969 | // copy of the variable VD | ||||
1970 | CodeGenFunction DtorCGF(CGM); | ||||
1971 | |||||
1972 | const CGFunctionInfo &FI = CGM.getTypes().arrangeNullaryFunction(); | ||||
1973 | llvm::FunctionType *FTy = CGM.getTypes().GetFunctionType(FI); | ||||
1974 | llvm::Function *Fn = CGM.CreateGlobalInitOrCleanUpFunction( | ||||
1975 | FTy, Twine(Buffer, "_dtor"), FI, Loc); | ||||
1976 | auto NL = ApplyDebugLocation::CreateEmpty(DtorCGF); | ||||
1977 | DtorCGF.StartFunction(GlobalDecl(), CGM.getContext().VoidTy, Fn, FI, | ||||
1978 | FunctionArgList(), Loc, Loc); | ||||
1979 | // Create a scope with an artificial location for the body of this | ||||
1980 | // function. | ||||
1981 | auto AL = ApplyDebugLocation::CreateArtificial(DtorCGF); | ||||
1982 | DtorCGF.emitDestroy(Address(Addr, CGM.getContext().getDeclAlign(VD)), | ||||
1983 | ASTTy, DtorCGF.getDestroyer(ASTTy.isDestructedType()), | ||||
1984 | DtorCGF.needsEHCleanup(ASTTy.isDestructedType())); | ||||
1985 | DtorCGF.FinishFunction(); | ||||
1986 | Dtor = Fn; | ||||
1987 | ID = llvm::ConstantExpr::getBitCast(Fn, CGM.Int8PtrTy); | ||||
1988 | CGM.addUsedGlobal(cast<llvm::GlobalValue>(Dtor)); | ||||
1989 | } else { | ||||
1990 | Dtor = new llvm::GlobalVariable( | ||||
1991 | CGM.getModule(), CGM.Int8Ty, /*isConstant=*/true, | ||||
1992 | llvm::GlobalValue::PrivateLinkage, | ||||
1993 | llvm::Constant::getNullValue(CGM.Int8Ty), Twine(Buffer, "_dtor")); | ||||
1994 | ID = Dtor; | ||||
1995 | } | ||||
1996 | // Register the information for the entry associated with the destructor. | ||||
1997 | Out.clear(); | ||||
1998 | OffloadEntriesInfoManager.registerTargetRegionEntryInfo( | ||||
1999 | DeviceID, FileID, Twine(Buffer, "_dtor").toStringRef(Out), Line, Dtor, | ||||
2000 | ID, OffloadEntriesInfoManagerTy::OMPTargetRegionEntryDtor); | ||||
2001 | } | ||||
2002 | return CGM.getLangOpts().OpenMPIsDevice; | ||||
2003 | } | ||||
2004 | |||||
2005 | Address CGOpenMPRuntime::getAddrOfArtificialThreadPrivate(CodeGenFunction &CGF, | ||||
2006 | QualType VarType, | ||||
2007 | StringRef Name) { | ||||
2008 | std::string Suffix = getName({"artificial", ""}); | ||||
2009 | llvm::Type *VarLVType = CGF.ConvertTypeForMem(VarType); | ||||
2010 | llvm::Value *GAddr = | ||||
2011 | getOrCreateInternalVariable(VarLVType, Twine(Name).concat(Suffix)); | ||||
2012 | if (CGM.getLangOpts().OpenMP && CGM.getLangOpts().OpenMPUseTLS && | ||||
2013 | CGM.getTarget().isTLSSupported()) { | ||||
2014 | cast<llvm::GlobalVariable>(GAddr)->setThreadLocal(/*Val=*/true); | ||||
2015 | return Address(GAddr, CGM.getContext().getTypeAlignInChars(VarType)); | ||||
2016 | } | ||||
2017 | std::string CacheSuffix = getName({"cache", ""}); | ||||
2018 | llvm::Value *Args[] = { | ||||
2019 | emitUpdateLocation(CGF, SourceLocation()), | ||||
2020 | getThreadID(CGF, SourceLocation()), | ||||
2021 | CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(GAddr, CGM.VoidPtrTy), | ||||
2022 | CGF.Builder.CreateIntCast(CGF.getTypeSize(VarType), CGM.SizeTy, | ||||
2023 | /*isSigned=*/false), | ||||
2024 | getOrCreateInternalVariable( | ||||
2025 | CGM.VoidPtrPtrTy, Twine(Name).concat(Suffix).concat(CacheSuffix))}; | ||||
2026 | return Address( | ||||
2027 | CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
2028 | CGF.EmitRuntimeCall( | ||||
2029 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
2030 | CGM.getModule(), OMPRTL___kmpc_threadprivate_cached), | ||||
2031 | Args), | ||||
2032 | VarLVType->getPointerTo(/*AddrSpace=*/0)), | ||||
2033 | CGM.getContext().getTypeAlignInChars(VarType)); | ||||
2034 | } | ||||
2035 | |||||
2036 | void CGOpenMPRuntime::emitIfClause(CodeGenFunction &CGF, const Expr *Cond, | ||||
2037 | const RegionCodeGenTy &ThenGen, | ||||
2038 | const RegionCodeGenTy &ElseGen) { | ||||
2039 | CodeGenFunction::LexicalScope ConditionScope(CGF, Cond->getSourceRange()); | ||||
2040 | |||||
2041 | // If the condition constant folds and can be elided, try to avoid emitting | ||||
2042 | // the condition and the dead arm of the if/else. | ||||
2043 | bool CondConstant; | ||||
2044 | if (CGF.ConstantFoldsToSimpleInteger(Cond, CondConstant)) { | ||||
2045 | if (CondConstant) | ||||
2046 | ThenGen(CGF); | ||||
2047 | else | ||||
2048 | ElseGen(CGF); | ||||
2049 | return; | ||||
2050 | } | ||||
2051 | |||||
2052 | // Otherwise, the condition did not fold, or we couldn't elide it. Just | ||||
2053 | // emit the conditional branch. | ||||
2054 | llvm::BasicBlock *ThenBlock = CGF.createBasicBlock("omp_if.then"); | ||||
2055 | llvm::BasicBlock *ElseBlock = CGF.createBasicBlock("omp_if.else"); | ||||
2056 | llvm::BasicBlock *ContBlock = CGF.createBasicBlock("omp_if.end"); | ||||
2057 | CGF.EmitBranchOnBoolExpr(Cond, ThenBlock, ElseBlock, /*TrueCount=*/0); | ||||
2058 | |||||
2059 | // Emit the 'then' code. | ||||
2060 | CGF.EmitBlock(ThenBlock); | ||||
2061 | ThenGen(CGF); | ||||
2062 | CGF.EmitBranch(ContBlock); | ||||
2063 | // Emit the 'else' code if present. | ||||
2064 | // There is no need to emit line number for unconditional branch. | ||||
2065 | (void)ApplyDebugLocation::CreateEmpty(CGF); | ||||
2066 | CGF.EmitBlock(ElseBlock); | ||||
2067 | ElseGen(CGF); | ||||
2068 | // There is no need to emit line number for unconditional branch. | ||||
2069 | (void)ApplyDebugLocation::CreateEmpty(CGF); | ||||
2070 | CGF.EmitBranch(ContBlock); | ||||
2071 | // Emit the continuation block for code after the if. | ||||
2072 | CGF.EmitBlock(ContBlock, /*IsFinished=*/true); | ||||
2073 | } | ||||
2074 | |||||
2075 | void CGOpenMPRuntime::emitParallelCall(CodeGenFunction &CGF, SourceLocation Loc, | ||||
2076 | llvm::Function *OutlinedFn, | ||||
2077 | ArrayRef<llvm::Value *> CapturedVars, | ||||
2078 | const Expr *IfCond) { | ||||
2079 | if (!CGF.HaveInsertPoint()) | ||||
2080 | return; | ||||
2081 | llvm::Value *RTLoc = emitUpdateLocation(CGF, Loc); | ||||
2082 | auto &M = CGM.getModule(); | ||||
2083 | auto &&ThenGen = [&M, OutlinedFn, CapturedVars, RTLoc, | ||||
2084 | this](CodeGenFunction &CGF, PrePostActionTy &) { | ||||
2085 | // Build call __kmpc_fork_call(loc, n, microtask, var1, .., varn); | ||||
2086 | CGOpenMPRuntime &RT = CGF.CGM.getOpenMPRuntime(); | ||||
2087 | llvm::Value *Args[] = { | ||||
2088 | RTLoc, | ||||
2089 | CGF.Builder.getInt32(CapturedVars.size()), // Number of captured vars | ||||
2090 | CGF.Builder.CreateBitCast(OutlinedFn, RT.getKmpc_MicroPointerTy())}; | ||||
2091 | llvm::SmallVector<llvm::Value *, 16> RealArgs; | ||||
2092 | RealArgs.append(std::begin(Args), std::end(Args)); | ||||
2093 | RealArgs.append(CapturedVars.begin(), CapturedVars.end()); | ||||
2094 | |||||
2095 | llvm::FunctionCallee RTLFn = | ||||
2096 | OMPBuilder.getOrCreateRuntimeFunction(M, OMPRTL___kmpc_fork_call); | ||||
2097 | CGF.EmitRuntimeCall(RTLFn, RealArgs); | ||||
2098 | }; | ||||
2099 | auto &&ElseGen = [&M, OutlinedFn, CapturedVars, RTLoc, Loc, | ||||
2100 | this](CodeGenFunction &CGF, PrePostActionTy &) { | ||||
2101 | CGOpenMPRuntime &RT = CGF.CGM.getOpenMPRuntime(); | ||||
2102 | llvm::Value *ThreadID = RT.getThreadID(CGF, Loc); | ||||
2103 | // Build calls: | ||||
2104 | // __kmpc_serialized_parallel(&Loc, GTid); | ||||
2105 | llvm::Value *Args[] = {RTLoc, ThreadID}; | ||||
2106 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2107 | M, OMPRTL___kmpc_serialized_parallel), | ||||
2108 | Args); | ||||
2109 | |||||
2110 | // OutlinedFn(>id, &zero_bound, CapturedStruct); | ||||
2111 | Address ThreadIDAddr = RT.emitThreadIDAddress(CGF, Loc); | ||||
2112 | Address ZeroAddrBound = | ||||
2113 | CGF.CreateDefaultAlignTempAlloca(CGF.Int32Ty, | ||||
2114 | /*Name=*/".bound.zero.addr"); | ||||
2115 | CGF.InitTempAlloca(ZeroAddrBound, CGF.Builder.getInt32(/*C*/ 0)); | ||||
2116 | llvm::SmallVector<llvm::Value *, 16> OutlinedFnArgs; | ||||
2117 | // ThreadId for serialized parallels is 0. | ||||
2118 | OutlinedFnArgs.push_back(ThreadIDAddr.getPointer()); | ||||
2119 | OutlinedFnArgs.push_back(ZeroAddrBound.getPointer()); | ||||
2120 | OutlinedFnArgs.append(CapturedVars.begin(), CapturedVars.end()); | ||||
2121 | |||||
2122 | // Ensure we do not inline the function. This is trivially true for the ones | ||||
2123 | // passed to __kmpc_fork_call but the ones called in serialized regions | ||||
2124 | // could be inlined. This is not a perfect but it is closer to the invariant | ||||
2125 | // we want, namely, every data environment starts with a new function. | ||||
2126 | // TODO: We should pass the if condition to the runtime function and do the | ||||
2127 | // handling there. Much cleaner code. | ||||
2128 | OutlinedFn->removeFnAttr(llvm::Attribute::AlwaysInline); | ||||
2129 | OutlinedFn->addFnAttr(llvm::Attribute::NoInline); | ||||
2130 | RT.emitOutlinedFunctionCall(CGF, Loc, OutlinedFn, OutlinedFnArgs); | ||||
2131 | |||||
2132 | // __kmpc_end_serialized_parallel(&Loc, GTid); | ||||
2133 | llvm::Value *EndArgs[] = {RT.emitUpdateLocation(CGF, Loc), ThreadID}; | ||||
2134 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2135 | M, OMPRTL___kmpc_end_serialized_parallel), | ||||
2136 | EndArgs); | ||||
2137 | }; | ||||
2138 | if (IfCond) { | ||||
2139 | emitIfClause(CGF, IfCond, ThenGen, ElseGen); | ||||
2140 | } else { | ||||
2141 | RegionCodeGenTy ThenRCG(ThenGen); | ||||
2142 | ThenRCG(CGF); | ||||
2143 | } | ||||
2144 | } | ||||
2145 | |||||
2146 | // If we're inside an (outlined) parallel region, use the region info's | ||||
2147 | // thread-ID variable (it is passed in a first argument of the outlined function | ||||
2148 | // as "kmp_int32 *gtid"). Otherwise, if we're not inside parallel region, but in | ||||
2149 | // regular serial code region, get thread ID by calling kmp_int32 | ||||
2150 | // kmpc_global_thread_num(ident_t *loc), stash this thread ID in a temporary and | ||||
2151 | // return the address of that temp. | ||||
2152 | Address CGOpenMPRuntime::emitThreadIDAddress(CodeGenFunction &CGF, | ||||
2153 | SourceLocation Loc) { | ||||
2154 | if (auto *OMPRegionInfo = | ||||
2155 | dyn_cast_or_null<CGOpenMPRegionInfo>(CGF.CapturedStmtInfo)) | ||||
2156 | if (OMPRegionInfo->getThreadIDVariable()) | ||||
2157 | return OMPRegionInfo->getThreadIDVariableLValue(CGF).getAddress(CGF); | ||||
2158 | |||||
2159 | llvm::Value *ThreadID = getThreadID(CGF, Loc); | ||||
2160 | QualType Int32Ty = | ||||
2161 | CGF.getContext().getIntTypeForBitwidth(/*DestWidth*/ 32, /*Signed*/ true); | ||||
2162 | Address ThreadIDTemp = CGF.CreateMemTemp(Int32Ty, /*Name*/ ".threadid_temp."); | ||||
2163 | CGF.EmitStoreOfScalar(ThreadID, | ||||
2164 | CGF.MakeAddrLValue(ThreadIDTemp, Int32Ty)); | ||||
2165 | |||||
2166 | return ThreadIDTemp; | ||||
2167 | } | ||||
2168 | |||||
2169 | llvm::Constant *CGOpenMPRuntime::getOrCreateInternalVariable( | ||||
2170 | llvm::Type *Ty, const llvm::Twine &Name, unsigned AddressSpace) { | ||||
2171 | SmallString<256> Buffer; | ||||
2172 | llvm::raw_svector_ostream Out(Buffer); | ||||
2173 | Out << Name; | ||||
2174 | StringRef RuntimeName = Out.str(); | ||||
2175 | auto &Elem = *InternalVars.try_emplace(RuntimeName, nullptr).first; | ||||
2176 | if (Elem.second) { | ||||
2177 | assert(Elem.second->getType()->getPointerElementType() == Ty &&((void)0) | ||||
2178 | "OMP internal variable has different type than requested")((void)0); | ||||
2179 | return &*Elem.second; | ||||
2180 | } | ||||
2181 | |||||
2182 | return Elem.second = new llvm::GlobalVariable( | ||||
2183 | CGM.getModule(), Ty, /*IsConstant*/ false, | ||||
2184 | llvm::GlobalValue::CommonLinkage, llvm::Constant::getNullValue(Ty), | ||||
2185 | Elem.first(), /*InsertBefore=*/nullptr, | ||||
2186 | llvm::GlobalValue::NotThreadLocal, AddressSpace); | ||||
2187 | } | ||||
2188 | |||||
2189 | llvm::Value *CGOpenMPRuntime::getCriticalRegionLock(StringRef CriticalName) { | ||||
2190 | std::string Prefix = Twine("gomp_critical_user_", CriticalName).str(); | ||||
2191 | std::string Name = getName({Prefix, "var"}); | ||||
2192 | return getOrCreateInternalVariable(KmpCriticalNameTy, Name); | ||||
2193 | } | ||||
2194 | |||||
2195 | namespace { | ||||
2196 | /// Common pre(post)-action for different OpenMP constructs. | ||||
2197 | class CommonActionTy final : public PrePostActionTy { | ||||
2198 | llvm::FunctionCallee EnterCallee; | ||||
2199 | ArrayRef<llvm::Value *> EnterArgs; | ||||
2200 | llvm::FunctionCallee ExitCallee; | ||||
2201 | ArrayRef<llvm::Value *> ExitArgs; | ||||
2202 | bool Conditional; | ||||
2203 | llvm::BasicBlock *ContBlock = nullptr; | ||||
2204 | |||||
2205 | public: | ||||
2206 | CommonActionTy(llvm::FunctionCallee EnterCallee, | ||||
2207 | ArrayRef<llvm::Value *> EnterArgs, | ||||
2208 | llvm::FunctionCallee ExitCallee, | ||||
2209 | ArrayRef<llvm::Value *> ExitArgs, bool Conditional = false) | ||||
2210 | : EnterCallee(EnterCallee), EnterArgs(EnterArgs), ExitCallee(ExitCallee), | ||||
2211 | ExitArgs(ExitArgs), Conditional(Conditional) {} | ||||
2212 | void Enter(CodeGenFunction &CGF) override { | ||||
2213 | llvm::Value *EnterRes = CGF.EmitRuntimeCall(EnterCallee, EnterArgs); | ||||
2214 | if (Conditional) { | ||||
2215 | llvm::Value *CallBool = CGF.Builder.CreateIsNotNull(EnterRes); | ||||
2216 | auto *ThenBlock = CGF.createBasicBlock("omp_if.then"); | ||||
2217 | ContBlock = CGF.createBasicBlock("omp_if.end"); | ||||
2218 | // Generate the branch (If-stmt) | ||||
2219 | CGF.Builder.CreateCondBr(CallBool, ThenBlock, ContBlock); | ||||
2220 | CGF.EmitBlock(ThenBlock); | ||||
2221 | } | ||||
2222 | } | ||||
2223 | void Done(CodeGenFunction &CGF) { | ||||
2224 | // Emit the rest of blocks/branches | ||||
2225 | CGF.EmitBranch(ContBlock); | ||||
2226 | CGF.EmitBlock(ContBlock, true); | ||||
2227 | } | ||||
2228 | void Exit(CodeGenFunction &CGF) override { | ||||
2229 | CGF.EmitRuntimeCall(ExitCallee, ExitArgs); | ||||
2230 | } | ||||
2231 | }; | ||||
2232 | } // anonymous namespace | ||||
2233 | |||||
2234 | void CGOpenMPRuntime::emitCriticalRegion(CodeGenFunction &CGF, | ||||
2235 | StringRef CriticalName, | ||||
2236 | const RegionCodeGenTy &CriticalOpGen, | ||||
2237 | SourceLocation Loc, const Expr *Hint) { | ||||
2238 | // __kmpc_critical[_with_hint](ident_t *, gtid, Lock[, hint]); | ||||
2239 | // CriticalOpGen(); | ||||
2240 | // __kmpc_end_critical(ident_t *, gtid, Lock); | ||||
2241 | // Prepare arguments and build a call to __kmpc_critical | ||||
2242 | if (!CGF.HaveInsertPoint()) | ||||
2243 | return; | ||||
2244 | llvm::Value *Args[] = {emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc), | ||||
2245 | getCriticalRegionLock(CriticalName)}; | ||||
2246 | llvm::SmallVector<llvm::Value *, 4> EnterArgs(std::begin(Args), | ||||
2247 | std::end(Args)); | ||||
2248 | if (Hint) { | ||||
2249 | EnterArgs.push_back(CGF.Builder.CreateIntCast( | ||||
2250 | CGF.EmitScalarExpr(Hint), CGM.Int32Ty, /*isSigned=*/false)); | ||||
2251 | } | ||||
2252 | CommonActionTy Action( | ||||
2253 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
2254 | CGM.getModule(), | ||||
2255 | Hint ? OMPRTL___kmpc_critical_with_hint : OMPRTL___kmpc_critical), | ||||
2256 | EnterArgs, | ||||
2257 | OMPBuilder.getOrCreateRuntimeFunction(CGM.getModule(), | ||||
2258 | OMPRTL___kmpc_end_critical), | ||||
2259 | Args); | ||||
2260 | CriticalOpGen.setAction(Action); | ||||
2261 | emitInlinedDirective(CGF, OMPD_critical, CriticalOpGen); | ||||
2262 | } | ||||
2263 | |||||
2264 | void CGOpenMPRuntime::emitMasterRegion(CodeGenFunction &CGF, | ||||
2265 | const RegionCodeGenTy &MasterOpGen, | ||||
2266 | SourceLocation Loc) { | ||||
2267 | if (!CGF.HaveInsertPoint()) | ||||
2268 | return; | ||||
2269 | // if(__kmpc_master(ident_t *, gtid)) { | ||||
2270 | // MasterOpGen(); | ||||
2271 | // __kmpc_end_master(ident_t *, gtid); | ||||
2272 | // } | ||||
2273 | // Prepare arguments and build a call to __kmpc_master | ||||
2274 | llvm::Value *Args[] = {emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc)}; | ||||
2275 | CommonActionTy Action(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2276 | CGM.getModule(), OMPRTL___kmpc_master), | ||||
2277 | Args, | ||||
2278 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
2279 | CGM.getModule(), OMPRTL___kmpc_end_master), | ||||
2280 | Args, | ||||
2281 | /*Conditional=*/true); | ||||
2282 | MasterOpGen.setAction(Action); | ||||
2283 | emitInlinedDirective(CGF, OMPD_master, MasterOpGen); | ||||
2284 | Action.Done(CGF); | ||||
2285 | } | ||||
2286 | |||||
2287 | void CGOpenMPRuntime::emitMaskedRegion(CodeGenFunction &CGF, | ||||
2288 | const RegionCodeGenTy &MaskedOpGen, | ||||
2289 | SourceLocation Loc, const Expr *Filter) { | ||||
2290 | if (!CGF.HaveInsertPoint()) | ||||
2291 | return; | ||||
2292 | // if(__kmpc_masked(ident_t *, gtid, filter)) { | ||||
2293 | // MaskedOpGen(); | ||||
2294 | // __kmpc_end_masked(iden_t *, gtid); | ||||
2295 | // } | ||||
2296 | // Prepare arguments and build a call to __kmpc_masked | ||||
2297 | llvm::Value *FilterVal = Filter | ||||
2298 | ? CGF.EmitScalarExpr(Filter, CGF.Int32Ty) | ||||
2299 | : llvm::ConstantInt::get(CGM.Int32Ty, /*V=*/0); | ||||
2300 | llvm::Value *Args[] = {emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc), | ||||
2301 | FilterVal}; | ||||
2302 | llvm::Value *ArgsEnd[] = {emitUpdateLocation(CGF, Loc), | ||||
2303 | getThreadID(CGF, Loc)}; | ||||
2304 | CommonActionTy Action(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2305 | CGM.getModule(), OMPRTL___kmpc_masked), | ||||
2306 | Args, | ||||
2307 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
2308 | CGM.getModule(), OMPRTL___kmpc_end_masked), | ||||
2309 | ArgsEnd, | ||||
2310 | /*Conditional=*/true); | ||||
2311 | MaskedOpGen.setAction(Action); | ||||
2312 | emitInlinedDirective(CGF, OMPD_masked, MaskedOpGen); | ||||
2313 | Action.Done(CGF); | ||||
2314 | } | ||||
2315 | |||||
2316 | void CGOpenMPRuntime::emitTaskyieldCall(CodeGenFunction &CGF, | ||||
2317 | SourceLocation Loc) { | ||||
2318 | if (!CGF.HaveInsertPoint()) | ||||
2319 | return; | ||||
2320 | if (CGF.CGM.getLangOpts().OpenMPIRBuilder) { | ||||
2321 | OMPBuilder.createTaskyield(CGF.Builder); | ||||
2322 | } else { | ||||
2323 | // Build call __kmpc_omp_taskyield(loc, thread_id, 0); | ||||
2324 | llvm::Value *Args[] = { | ||||
2325 | emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc), | ||||
2326 | llvm::ConstantInt::get(CGM.IntTy, /*V=*/0, /*isSigned=*/true)}; | ||||
2327 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2328 | CGM.getModule(), OMPRTL___kmpc_omp_taskyield), | ||||
2329 | Args); | ||||
2330 | } | ||||
2331 | |||||
2332 | if (auto *Region = dyn_cast_or_null<CGOpenMPRegionInfo>(CGF.CapturedStmtInfo)) | ||||
2333 | Region->emitUntiedSwitch(CGF); | ||||
2334 | } | ||||
2335 | |||||
2336 | void CGOpenMPRuntime::emitTaskgroupRegion(CodeGenFunction &CGF, | ||||
2337 | const RegionCodeGenTy &TaskgroupOpGen, | ||||
2338 | SourceLocation Loc) { | ||||
2339 | if (!CGF.HaveInsertPoint()) | ||||
2340 | return; | ||||
2341 | // __kmpc_taskgroup(ident_t *, gtid); | ||||
2342 | // TaskgroupOpGen(); | ||||
2343 | // __kmpc_end_taskgroup(ident_t *, gtid); | ||||
2344 | // Prepare arguments and build a call to __kmpc_taskgroup | ||||
2345 | llvm::Value *Args[] = {emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc)}; | ||||
2346 | CommonActionTy Action(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2347 | CGM.getModule(), OMPRTL___kmpc_taskgroup), | ||||
2348 | Args, | ||||
2349 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
2350 | CGM.getModule(), OMPRTL___kmpc_end_taskgroup), | ||||
2351 | Args); | ||||
2352 | TaskgroupOpGen.setAction(Action); | ||||
2353 | emitInlinedDirective(CGF, OMPD_taskgroup, TaskgroupOpGen); | ||||
2354 | } | ||||
2355 | |||||
2356 | /// Given an array of pointers to variables, project the address of a | ||||
2357 | /// given variable. | ||||
2358 | static Address emitAddrOfVarFromArray(CodeGenFunction &CGF, Address Array, | ||||
2359 | unsigned Index, const VarDecl *Var) { | ||||
2360 | // Pull out the pointer to the variable. | ||||
2361 | Address PtrAddr = CGF.Builder.CreateConstArrayGEP(Array, Index); | ||||
2362 | llvm::Value *Ptr = CGF.Builder.CreateLoad(PtrAddr); | ||||
2363 | |||||
2364 | Address Addr = Address(Ptr, CGF.getContext().getDeclAlign(Var)); | ||||
2365 | Addr = CGF.Builder.CreateElementBitCast( | ||||
2366 | Addr, CGF.ConvertTypeForMem(Var->getType())); | ||||
2367 | return Addr; | ||||
2368 | } | ||||
2369 | |||||
2370 | static llvm::Value *emitCopyprivateCopyFunction( | ||||
2371 | CodeGenModule &CGM, llvm::Type *ArgsType, | ||||
2372 | ArrayRef<const Expr *> CopyprivateVars, ArrayRef<const Expr *> DestExprs, | ||||
2373 | ArrayRef<const Expr *> SrcExprs, ArrayRef<const Expr *> AssignmentOps, | ||||
2374 | SourceLocation Loc) { | ||||
2375 | ASTContext &C = CGM.getContext(); | ||||
2376 | // void copy_func(void *LHSArg, void *RHSArg); | ||||
2377 | FunctionArgList Args; | ||||
2378 | ImplicitParamDecl LHSArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, C.VoidPtrTy, | ||||
2379 | ImplicitParamDecl::Other); | ||||
2380 | ImplicitParamDecl RHSArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, C.VoidPtrTy, | ||||
2381 | ImplicitParamDecl::Other); | ||||
2382 | Args.push_back(&LHSArg); | ||||
2383 | Args.push_back(&RHSArg); | ||||
2384 | const auto &CGFI = | ||||
2385 | CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, Args); | ||||
2386 | std::string Name = | ||||
2387 | CGM.getOpenMPRuntime().getName({"omp", "copyprivate", "copy_func"}); | ||||
2388 | auto *Fn = llvm::Function::Create(CGM.getTypes().GetFunctionType(CGFI), | ||||
2389 | llvm::GlobalValue::InternalLinkage, Name, | ||||
2390 | &CGM.getModule()); | ||||
2391 | CGM.SetInternalFunctionAttributes(GlobalDecl(), Fn, CGFI); | ||||
2392 | Fn->setDoesNotRecurse(); | ||||
2393 | CodeGenFunction CGF(CGM); | ||||
2394 | CGF.StartFunction(GlobalDecl(), C.VoidTy, Fn, CGFI, Args, Loc, Loc); | ||||
2395 | // Dest = (void*[n])(LHSArg); | ||||
2396 | // Src = (void*[n])(RHSArg); | ||||
2397 | Address LHS(CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
2398 | CGF.Builder.CreateLoad(CGF.GetAddrOfLocalVar(&LHSArg)), | ||||
2399 | ArgsType), CGF.getPointerAlign()); | ||||
2400 | Address RHS(CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
2401 | CGF.Builder.CreateLoad(CGF.GetAddrOfLocalVar(&RHSArg)), | ||||
2402 | ArgsType), CGF.getPointerAlign()); | ||||
2403 | // *(Type0*)Dst[0] = *(Type0*)Src[0]; | ||||
2404 | // *(Type1*)Dst[1] = *(Type1*)Src[1]; | ||||
2405 | // ... | ||||
2406 | // *(Typen*)Dst[n] = *(Typen*)Src[n]; | ||||
2407 | for (unsigned I = 0, E = AssignmentOps.size(); I < E; ++I) { | ||||
2408 | const auto *DestVar = | ||||
2409 | cast<VarDecl>(cast<DeclRefExpr>(DestExprs[I])->getDecl()); | ||||
2410 | Address DestAddr = emitAddrOfVarFromArray(CGF, LHS, I, DestVar); | ||||
2411 | |||||
2412 | const auto *SrcVar = | ||||
2413 | cast<VarDecl>(cast<DeclRefExpr>(SrcExprs[I])->getDecl()); | ||||
2414 | Address SrcAddr = emitAddrOfVarFromArray(CGF, RHS, I, SrcVar); | ||||
2415 | |||||
2416 | const auto *VD = cast<DeclRefExpr>(CopyprivateVars[I])->getDecl(); | ||||
2417 | QualType Type = VD->getType(); | ||||
2418 | CGF.EmitOMPCopy(Type, DestAddr, SrcAddr, DestVar, SrcVar, AssignmentOps[I]); | ||||
2419 | } | ||||
2420 | CGF.FinishFunction(); | ||||
2421 | return Fn; | ||||
2422 | } | ||||
2423 | |||||
2424 | void CGOpenMPRuntime::emitSingleRegion(CodeGenFunction &CGF, | ||||
2425 | const RegionCodeGenTy &SingleOpGen, | ||||
2426 | SourceLocation Loc, | ||||
2427 | ArrayRef<const Expr *> CopyprivateVars, | ||||
2428 | ArrayRef<const Expr *> SrcExprs, | ||||
2429 | ArrayRef<const Expr *> DstExprs, | ||||
2430 | ArrayRef<const Expr *> AssignmentOps) { | ||||
2431 | if (!CGF.HaveInsertPoint()) | ||||
2432 | return; | ||||
2433 | assert(CopyprivateVars.size() == SrcExprs.size() &&((void)0) | ||||
2434 | CopyprivateVars.size() == DstExprs.size() &&((void)0) | ||||
2435 | CopyprivateVars.size() == AssignmentOps.size())((void)0); | ||||
2436 | ASTContext &C = CGM.getContext(); | ||||
2437 | // int32 did_it = 0; | ||||
2438 | // if(__kmpc_single(ident_t *, gtid)) { | ||||
2439 | // SingleOpGen(); | ||||
2440 | // __kmpc_end_single(ident_t *, gtid); | ||||
2441 | // did_it = 1; | ||||
2442 | // } | ||||
2443 | // call __kmpc_copyprivate(ident_t *, gtid, <buf_size>, <copyprivate list>, | ||||
2444 | // <copy_func>, did_it); | ||||
2445 | |||||
2446 | Address DidIt = Address::invalid(); | ||||
2447 | if (!CopyprivateVars.empty()) { | ||||
2448 | // int32 did_it = 0; | ||||
2449 | QualType KmpInt32Ty = | ||||
2450 | C.getIntTypeForBitwidth(/*DestWidth=*/32, /*Signed=*/1); | ||||
2451 | DidIt = CGF.CreateMemTemp(KmpInt32Ty, ".omp.copyprivate.did_it"); | ||||
2452 | CGF.Builder.CreateStore(CGF.Builder.getInt32(0), DidIt); | ||||
2453 | } | ||||
2454 | // Prepare arguments and build a call to __kmpc_single | ||||
2455 | llvm::Value *Args[] = {emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc)}; | ||||
2456 | CommonActionTy Action(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2457 | CGM.getModule(), OMPRTL___kmpc_single), | ||||
2458 | Args, | ||||
2459 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
2460 | CGM.getModule(), OMPRTL___kmpc_end_single), | ||||
2461 | Args, | ||||
2462 | /*Conditional=*/true); | ||||
2463 | SingleOpGen.setAction(Action); | ||||
2464 | emitInlinedDirective(CGF, OMPD_single, SingleOpGen); | ||||
2465 | if (DidIt.isValid()) { | ||||
2466 | // did_it = 1; | ||||
2467 | CGF.Builder.CreateStore(CGF.Builder.getInt32(1), DidIt); | ||||
2468 | } | ||||
2469 | Action.Done(CGF); | ||||
2470 | // call __kmpc_copyprivate(ident_t *, gtid, <buf_size>, <copyprivate list>, | ||||
2471 | // <copy_func>, did_it); | ||||
2472 | if (DidIt.isValid()) { | ||||
2473 | llvm::APInt ArraySize(/*unsigned int numBits=*/32, CopyprivateVars.size()); | ||||
2474 | QualType CopyprivateArrayTy = C.getConstantArrayType( | ||||
2475 | C.VoidPtrTy, ArraySize, nullptr, ArrayType::Normal, | ||||
2476 | /*IndexTypeQuals=*/0); | ||||
2477 | // Create a list of all private variables for copyprivate. | ||||
2478 | Address CopyprivateList = | ||||
2479 | CGF.CreateMemTemp(CopyprivateArrayTy, ".omp.copyprivate.cpr_list"); | ||||
2480 | for (unsigned I = 0, E = CopyprivateVars.size(); I < E; ++I) { | ||||
2481 | Address Elem = CGF.Builder.CreateConstArrayGEP(CopyprivateList, I); | ||||
2482 | CGF.Builder.CreateStore( | ||||
2483 | CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
2484 | CGF.EmitLValue(CopyprivateVars[I]).getPointer(CGF), | ||||
2485 | CGF.VoidPtrTy), | ||||
2486 | Elem); | ||||
2487 | } | ||||
2488 | // Build function that copies private values from single region to all other | ||||
2489 | // threads in the corresponding parallel region. | ||||
2490 | llvm::Value *CpyFn = emitCopyprivateCopyFunction( | ||||
2491 | CGM, CGF.ConvertTypeForMem(CopyprivateArrayTy)->getPointerTo(), | ||||
2492 | CopyprivateVars, SrcExprs, DstExprs, AssignmentOps, Loc); | ||||
2493 | llvm::Value *BufSize = CGF.getTypeSize(CopyprivateArrayTy); | ||||
2494 | Address CL = | ||||
2495 | CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(CopyprivateList, | ||||
2496 | CGF.VoidPtrTy); | ||||
2497 | llvm::Value *DidItVal = CGF.Builder.CreateLoad(DidIt); | ||||
2498 | llvm::Value *Args[] = { | ||||
2499 | emitUpdateLocation(CGF, Loc), // ident_t *<loc> | ||||
2500 | getThreadID(CGF, Loc), // i32 <gtid> | ||||
2501 | BufSize, // size_t <buf_size> | ||||
2502 | CL.getPointer(), // void *<copyprivate list> | ||||
2503 | CpyFn, // void (*) (void *, void *) <copy_func> | ||||
2504 | DidItVal // i32 did_it | ||||
2505 | }; | ||||
2506 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2507 | CGM.getModule(), OMPRTL___kmpc_copyprivate), | ||||
2508 | Args); | ||||
2509 | } | ||||
2510 | } | ||||
2511 | |||||
2512 | void CGOpenMPRuntime::emitOrderedRegion(CodeGenFunction &CGF, | ||||
2513 | const RegionCodeGenTy &OrderedOpGen, | ||||
2514 | SourceLocation Loc, bool IsThreads) { | ||||
2515 | if (!CGF.HaveInsertPoint()) | ||||
2516 | return; | ||||
2517 | // __kmpc_ordered(ident_t *, gtid); | ||||
2518 | // OrderedOpGen(); | ||||
2519 | // __kmpc_end_ordered(ident_t *, gtid); | ||||
2520 | // Prepare arguments and build a call to __kmpc_ordered | ||||
2521 | if (IsThreads) { | ||||
2522 | llvm::Value *Args[] = {emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc)}; | ||||
2523 | CommonActionTy Action(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2524 | CGM.getModule(), OMPRTL___kmpc_ordered), | ||||
2525 | Args, | ||||
2526 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
2527 | CGM.getModule(), OMPRTL___kmpc_end_ordered), | ||||
2528 | Args); | ||||
2529 | OrderedOpGen.setAction(Action); | ||||
2530 | emitInlinedDirective(CGF, OMPD_ordered, OrderedOpGen); | ||||
2531 | return; | ||||
2532 | } | ||||
2533 | emitInlinedDirective(CGF, OMPD_ordered, OrderedOpGen); | ||||
2534 | } | ||||
2535 | |||||
2536 | unsigned CGOpenMPRuntime::getDefaultFlagsForBarriers(OpenMPDirectiveKind Kind) { | ||||
2537 | unsigned Flags; | ||||
2538 | if (Kind == OMPD_for) | ||||
2539 | Flags = OMP_IDENT_BARRIER_IMPL_FOR; | ||||
2540 | else if (Kind == OMPD_sections) | ||||
2541 | Flags = OMP_IDENT_BARRIER_IMPL_SECTIONS; | ||||
2542 | else if (Kind == OMPD_single) | ||||
2543 | Flags = OMP_IDENT_BARRIER_IMPL_SINGLE; | ||||
2544 | else if (Kind == OMPD_barrier) | ||||
2545 | Flags = OMP_IDENT_BARRIER_EXPL; | ||||
2546 | else | ||||
2547 | Flags = OMP_IDENT_BARRIER_IMPL; | ||||
2548 | return Flags; | ||||
2549 | } | ||||
2550 | |||||
2551 | void CGOpenMPRuntime::getDefaultScheduleAndChunk( | ||||
2552 | CodeGenFunction &CGF, const OMPLoopDirective &S, | ||||
2553 | OpenMPScheduleClauseKind &ScheduleKind, const Expr *&ChunkExpr) const { | ||||
2554 | // Check if the loop directive is actually a doacross loop directive. In this | ||||
2555 | // case choose static, 1 schedule. | ||||
2556 | if (llvm::any_of( | ||||
2557 | S.getClausesOfKind<OMPOrderedClause>(), | ||||
2558 | [](const OMPOrderedClause *C) { return C->getNumForLoops(); })) { | ||||
2559 | ScheduleKind = OMPC_SCHEDULE_static; | ||||
2560 | // Chunk size is 1 in this case. | ||||
2561 | llvm::APInt ChunkSize(32, 1); | ||||
2562 | ChunkExpr = IntegerLiteral::Create( | ||||
2563 | CGF.getContext(), ChunkSize, | ||||
2564 | CGF.getContext().getIntTypeForBitwidth(32, /*Signed=*/0), | ||||
2565 | SourceLocation()); | ||||
2566 | } | ||||
2567 | } | ||||
2568 | |||||
2569 | void CGOpenMPRuntime::emitBarrierCall(CodeGenFunction &CGF, SourceLocation Loc, | ||||
2570 | OpenMPDirectiveKind Kind, bool EmitChecks, | ||||
2571 | bool ForceSimpleCall) { | ||||
2572 | // Check if we should use the OMPBuilder | ||||
2573 | auto *OMPRegionInfo = | ||||
2574 | dyn_cast_or_null<CGOpenMPRegionInfo>(CGF.CapturedStmtInfo); | ||||
2575 | if (CGF.CGM.getLangOpts().OpenMPIRBuilder) { | ||||
2576 | CGF.Builder.restoreIP(OMPBuilder.createBarrier( | ||||
2577 | CGF.Builder, Kind, ForceSimpleCall, EmitChecks)); | ||||
2578 | return; | ||||
2579 | } | ||||
2580 | |||||
2581 | if (!CGF.HaveInsertPoint()) | ||||
2582 | return; | ||||
2583 | // Build call __kmpc_cancel_barrier(loc, thread_id); | ||||
2584 | // Build call __kmpc_barrier(loc, thread_id); | ||||
2585 | unsigned Flags = getDefaultFlagsForBarriers(Kind); | ||||
2586 | // Build call __kmpc_cancel_barrier(loc, thread_id) or __kmpc_barrier(loc, | ||||
2587 | // thread_id); | ||||
2588 | llvm::Value *Args[] = {emitUpdateLocation(CGF, Loc, Flags), | ||||
2589 | getThreadID(CGF, Loc)}; | ||||
2590 | if (OMPRegionInfo) { | ||||
2591 | if (!ForceSimpleCall && OMPRegionInfo->hasCancel()) { | ||||
2592 | llvm::Value *Result = CGF.EmitRuntimeCall( | ||||
2593 | OMPBuilder.getOrCreateRuntimeFunction(CGM.getModule(), | ||||
2594 | OMPRTL___kmpc_cancel_barrier), | ||||
2595 | Args); | ||||
2596 | if (EmitChecks) { | ||||
2597 | // if (__kmpc_cancel_barrier()) { | ||||
2598 | // exit from construct; | ||||
2599 | // } | ||||
2600 | llvm::BasicBlock *ExitBB = CGF.createBasicBlock(".cancel.exit"); | ||||
2601 | llvm::BasicBlock *ContBB = CGF.createBasicBlock(".cancel.continue"); | ||||
2602 | llvm::Value *Cmp = CGF.Builder.CreateIsNotNull(Result); | ||||
2603 | CGF.Builder.CreateCondBr(Cmp, ExitBB, ContBB); | ||||
2604 | CGF.EmitBlock(ExitBB); | ||||
2605 | // exit from construct; | ||||
2606 | CodeGenFunction::JumpDest CancelDestination = | ||||
2607 | CGF.getOMPCancelDestination(OMPRegionInfo->getDirectiveKind()); | ||||
2608 | CGF.EmitBranchThroughCleanup(CancelDestination); | ||||
2609 | CGF.EmitBlock(ContBB, /*IsFinished=*/true); | ||||
2610 | } | ||||
2611 | return; | ||||
2612 | } | ||||
2613 | } | ||||
2614 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2615 | CGM.getModule(), OMPRTL___kmpc_barrier), | ||||
2616 | Args); | ||||
2617 | } | ||||
2618 | |||||
2619 | /// Map the OpenMP loop schedule to the runtime enumeration. | ||||
2620 | static OpenMPSchedType getRuntimeSchedule(OpenMPScheduleClauseKind ScheduleKind, | ||||
2621 | bool Chunked, bool Ordered) { | ||||
2622 | switch (ScheduleKind) { | ||||
2623 | case OMPC_SCHEDULE_static: | ||||
2624 | return Chunked ? (Ordered ? OMP_ord_static_chunked : OMP_sch_static_chunked) | ||||
2625 | : (Ordered ? OMP_ord_static : OMP_sch_static); | ||||
2626 | case OMPC_SCHEDULE_dynamic: | ||||
2627 | return Ordered ? OMP_ord_dynamic_chunked : OMP_sch_dynamic_chunked; | ||||
2628 | case OMPC_SCHEDULE_guided: | ||||
2629 | return Ordered ? OMP_ord_guided_chunked : OMP_sch_guided_chunked; | ||||
2630 | case OMPC_SCHEDULE_runtime: | ||||
2631 | return Ordered ? OMP_ord_runtime : OMP_sch_runtime; | ||||
2632 | case OMPC_SCHEDULE_auto: | ||||
2633 | return Ordered ? OMP_ord_auto : OMP_sch_auto; | ||||
2634 | case OMPC_SCHEDULE_unknown: | ||||
2635 | assert(!Chunked && "chunk was specified but schedule kind not known")((void)0); | ||||
2636 | return Ordered ? OMP_ord_static : OMP_sch_static; | ||||
2637 | } | ||||
2638 | llvm_unreachable("Unexpected runtime schedule")__builtin_unreachable(); | ||||
2639 | } | ||||
2640 | |||||
2641 | /// Map the OpenMP distribute schedule to the runtime enumeration. | ||||
2642 | static OpenMPSchedType | ||||
2643 | getRuntimeSchedule(OpenMPDistScheduleClauseKind ScheduleKind, bool Chunked) { | ||||
2644 | // only static is allowed for dist_schedule | ||||
2645 | return Chunked ? OMP_dist_sch_static_chunked : OMP_dist_sch_static; | ||||
2646 | } | ||||
2647 | |||||
2648 | bool CGOpenMPRuntime::isStaticNonchunked(OpenMPScheduleClauseKind ScheduleKind, | ||||
2649 | bool Chunked) const { | ||||
2650 | OpenMPSchedType Schedule = | ||||
2651 | getRuntimeSchedule(ScheduleKind, Chunked, /*Ordered=*/false); | ||||
2652 | return Schedule == OMP_sch_static; | ||||
2653 | } | ||||
2654 | |||||
2655 | bool CGOpenMPRuntime::isStaticNonchunked( | ||||
2656 | OpenMPDistScheduleClauseKind ScheduleKind, bool Chunked) const { | ||||
2657 | OpenMPSchedType Schedule = getRuntimeSchedule(ScheduleKind, Chunked); | ||||
2658 | return Schedule == OMP_dist_sch_static; | ||||
2659 | } | ||||
2660 | |||||
2661 | bool CGOpenMPRuntime::isStaticChunked(OpenMPScheduleClauseKind ScheduleKind, | ||||
2662 | bool Chunked) const { | ||||
2663 | OpenMPSchedType Schedule = | ||||
2664 | getRuntimeSchedule(ScheduleKind, Chunked, /*Ordered=*/false); | ||||
2665 | return Schedule == OMP_sch_static_chunked; | ||||
2666 | } | ||||
2667 | |||||
2668 | bool CGOpenMPRuntime::isStaticChunked( | ||||
2669 | OpenMPDistScheduleClauseKind ScheduleKind, bool Chunked) const { | ||||
2670 | OpenMPSchedType Schedule = getRuntimeSchedule(ScheduleKind, Chunked); | ||||
2671 | return Schedule == OMP_dist_sch_static_chunked; | ||||
2672 | } | ||||
2673 | |||||
2674 | bool CGOpenMPRuntime::isDynamic(OpenMPScheduleClauseKind ScheduleKind) const { | ||||
2675 | OpenMPSchedType Schedule = | ||||
2676 | getRuntimeSchedule(ScheduleKind, /*Chunked=*/false, /*Ordered=*/false); | ||||
2677 | assert(Schedule != OMP_sch_static_chunked && "cannot be chunked here")((void)0); | ||||
2678 | return Schedule != OMP_sch_static; | ||||
2679 | } | ||||
2680 | |||||
2681 | static int addMonoNonMonoModifier(CodeGenModule &CGM, OpenMPSchedType Schedule, | ||||
2682 | OpenMPScheduleClauseModifier M1, | ||||
2683 | OpenMPScheduleClauseModifier M2) { | ||||
2684 | int Modifier = 0; | ||||
2685 | switch (M1) { | ||||
2686 | case OMPC_SCHEDULE_MODIFIER_monotonic: | ||||
2687 | Modifier = OMP_sch_modifier_monotonic; | ||||
2688 | break; | ||||
2689 | case OMPC_SCHEDULE_MODIFIER_nonmonotonic: | ||||
2690 | Modifier = OMP_sch_modifier_nonmonotonic; | ||||
2691 | break; | ||||
2692 | case OMPC_SCHEDULE_MODIFIER_simd: | ||||
2693 | if (Schedule == OMP_sch_static_chunked) | ||||
2694 | Schedule = OMP_sch_static_balanced_chunked; | ||||
2695 | break; | ||||
2696 | case OMPC_SCHEDULE_MODIFIER_last: | ||||
2697 | case OMPC_SCHEDULE_MODIFIER_unknown: | ||||
2698 | break; | ||||
2699 | } | ||||
2700 | switch (M2) { | ||||
2701 | case OMPC_SCHEDULE_MODIFIER_monotonic: | ||||
2702 | Modifier = OMP_sch_modifier_monotonic; | ||||
2703 | break; | ||||
2704 | case OMPC_SCHEDULE_MODIFIER_nonmonotonic: | ||||
2705 | Modifier = OMP_sch_modifier_nonmonotonic; | ||||
2706 | break; | ||||
2707 | case OMPC_SCHEDULE_MODIFIER_simd: | ||||
2708 | if (Schedule == OMP_sch_static_chunked) | ||||
2709 | Schedule = OMP_sch_static_balanced_chunked; | ||||
2710 | break; | ||||
2711 | case OMPC_SCHEDULE_MODIFIER_last: | ||||
2712 | case OMPC_SCHEDULE_MODIFIER_unknown: | ||||
2713 | break; | ||||
2714 | } | ||||
2715 | // OpenMP 5.0, 2.9.2 Worksharing-Loop Construct, Desription. | ||||
2716 | // If the static schedule kind is specified or if the ordered clause is | ||||
2717 | // specified, and if the nonmonotonic modifier is not specified, the effect is | ||||
2718 | // as if the monotonic modifier is specified. Otherwise, unless the monotonic | ||||
2719 | // modifier is specified, the effect is as if the nonmonotonic modifier is | ||||
2720 | // specified. | ||||
2721 | if (CGM.getLangOpts().OpenMP >= 50 && Modifier == 0) { | ||||
2722 | if (!(Schedule == OMP_sch_static_chunked || Schedule == OMP_sch_static || | ||||
2723 | Schedule == OMP_sch_static_balanced_chunked || | ||||
2724 | Schedule == OMP_ord_static_chunked || Schedule == OMP_ord_static || | ||||
2725 | Schedule == OMP_dist_sch_static_chunked || | ||||
2726 | Schedule == OMP_dist_sch_static)) | ||||
2727 | Modifier = OMP_sch_modifier_nonmonotonic; | ||||
2728 | } | ||||
2729 | return Schedule | Modifier; | ||||
2730 | } | ||||
2731 | |||||
2732 | void CGOpenMPRuntime::emitForDispatchInit( | ||||
2733 | CodeGenFunction &CGF, SourceLocation Loc, | ||||
2734 | const OpenMPScheduleTy &ScheduleKind, unsigned IVSize, bool IVSigned, | ||||
2735 | bool Ordered, const DispatchRTInput &DispatchValues) { | ||||
2736 | if (!CGF.HaveInsertPoint()) | ||||
2737 | return; | ||||
2738 | OpenMPSchedType Schedule = getRuntimeSchedule( | ||||
2739 | ScheduleKind.Schedule, DispatchValues.Chunk != nullptr, Ordered); | ||||
2740 | assert(Ordered ||((void)0) | ||||
2741 | (Schedule != OMP_sch_static && Schedule != OMP_sch_static_chunked &&((void)0) | ||||
2742 | Schedule != OMP_ord_static && Schedule != OMP_ord_static_chunked &&((void)0) | ||||
2743 | Schedule != OMP_sch_static_balanced_chunked))((void)0); | ||||
2744 | // Call __kmpc_dispatch_init( | ||||
2745 | // ident_t *loc, kmp_int32 tid, kmp_int32 schedule, | ||||
2746 | // kmp_int[32|64] lower, kmp_int[32|64] upper, | ||||
2747 | // kmp_int[32|64] stride, kmp_int[32|64] chunk); | ||||
2748 | |||||
2749 | // If the Chunk was not specified in the clause - use default value 1. | ||||
2750 | llvm::Value *Chunk = DispatchValues.Chunk ? DispatchValues.Chunk | ||||
2751 | : CGF.Builder.getIntN(IVSize, 1); | ||||
2752 | llvm::Value *Args[] = { | ||||
2753 | emitUpdateLocation(CGF, Loc), | ||||
2754 | getThreadID(CGF, Loc), | ||||
2755 | CGF.Builder.getInt32(addMonoNonMonoModifier( | ||||
2756 | CGM, Schedule, ScheduleKind.M1, ScheduleKind.M2)), // Schedule type | ||||
2757 | DispatchValues.LB, // Lower | ||||
2758 | DispatchValues.UB, // Upper | ||||
2759 | CGF.Builder.getIntN(IVSize, 1), // Stride | ||||
2760 | Chunk // Chunk | ||||
2761 | }; | ||||
2762 | CGF.EmitRuntimeCall(createDispatchInitFunction(IVSize, IVSigned), Args); | ||||
2763 | } | ||||
2764 | |||||
2765 | static void emitForStaticInitCall( | ||||
2766 | CodeGenFunction &CGF, llvm::Value *UpdateLocation, llvm::Value *ThreadId, | ||||
2767 | llvm::FunctionCallee ForStaticInitFunction, OpenMPSchedType Schedule, | ||||
2768 | OpenMPScheduleClauseModifier M1, OpenMPScheduleClauseModifier M2, | ||||
2769 | const CGOpenMPRuntime::StaticRTInput &Values) { | ||||
2770 | if (!CGF.HaveInsertPoint()) | ||||
2771 | return; | ||||
2772 | |||||
2773 | assert(!Values.Ordered)((void)0); | ||||
2774 | assert(Schedule == OMP_sch_static || Schedule == OMP_sch_static_chunked ||((void)0) | ||||
2775 | Schedule == OMP_sch_static_balanced_chunked ||((void)0) | ||||
2776 | Schedule == OMP_ord_static || Schedule == OMP_ord_static_chunked ||((void)0) | ||||
2777 | Schedule == OMP_dist_sch_static ||((void)0) | ||||
2778 | Schedule == OMP_dist_sch_static_chunked)((void)0); | ||||
2779 | |||||
2780 | // Call __kmpc_for_static_init( | ||||
2781 | // ident_t *loc, kmp_int32 tid, kmp_int32 schedtype, | ||||
2782 | // kmp_int32 *p_lastiter, kmp_int[32|64] *p_lower, | ||||
2783 | // kmp_int[32|64] *p_upper, kmp_int[32|64] *p_stride, | ||||
2784 | // kmp_int[32|64] incr, kmp_int[32|64] chunk); | ||||
2785 | llvm::Value *Chunk = Values.Chunk; | ||||
2786 | if (Chunk == nullptr) { | ||||
2787 | assert((Schedule == OMP_sch_static || Schedule == OMP_ord_static ||((void)0) | ||||
2788 | Schedule == OMP_dist_sch_static) &&((void)0) | ||||
2789 | "expected static non-chunked schedule")((void)0); | ||||
2790 | // If the Chunk was not specified in the clause - use default value 1. | ||||
2791 | Chunk = CGF.Builder.getIntN(Values.IVSize, 1); | ||||
2792 | } else { | ||||
2793 | assert((Schedule == OMP_sch_static_chunked ||((void)0) | ||||
2794 | Schedule == OMP_sch_static_balanced_chunked ||((void)0) | ||||
2795 | Schedule == OMP_ord_static_chunked ||((void)0) | ||||
2796 | Schedule == OMP_dist_sch_static_chunked) &&((void)0) | ||||
2797 | "expected static chunked schedule")((void)0); | ||||
2798 | } | ||||
2799 | llvm::Value *Args[] = { | ||||
2800 | UpdateLocation, | ||||
2801 | ThreadId, | ||||
2802 | CGF.Builder.getInt32(addMonoNonMonoModifier(CGF.CGM, Schedule, M1, | ||||
2803 | M2)), // Schedule type | ||||
2804 | Values.IL.getPointer(), // &isLastIter | ||||
2805 | Values.LB.getPointer(), // &LB | ||||
2806 | Values.UB.getPointer(), // &UB | ||||
2807 | Values.ST.getPointer(), // &Stride | ||||
2808 | CGF.Builder.getIntN(Values.IVSize, 1), // Incr | ||||
2809 | Chunk // Chunk | ||||
2810 | }; | ||||
2811 | CGF.EmitRuntimeCall(ForStaticInitFunction, Args); | ||||
2812 | } | ||||
2813 | |||||
2814 | void CGOpenMPRuntime::emitForStaticInit(CodeGenFunction &CGF, | ||||
2815 | SourceLocation Loc, | ||||
2816 | OpenMPDirectiveKind DKind, | ||||
2817 | const OpenMPScheduleTy &ScheduleKind, | ||||
2818 | const StaticRTInput &Values) { | ||||
2819 | OpenMPSchedType ScheduleNum = getRuntimeSchedule( | ||||
2820 | ScheduleKind.Schedule, Values.Chunk != nullptr, Values.Ordered); | ||||
2821 | assert(isOpenMPWorksharingDirective(DKind) &&((void)0) | ||||
2822 | "Expected loop-based or sections-based directive.")((void)0); | ||||
2823 | llvm::Value *UpdatedLocation = emitUpdateLocation(CGF, Loc, | ||||
2824 | isOpenMPLoopDirective(DKind) | ||||
2825 | ? OMP_IDENT_WORK_LOOP | ||||
2826 | : OMP_IDENT_WORK_SECTIONS); | ||||
2827 | llvm::Value *ThreadId = getThreadID(CGF, Loc); | ||||
2828 | llvm::FunctionCallee StaticInitFunction = | ||||
2829 | createForStaticInitFunction(Values.IVSize, Values.IVSigned); | ||||
2830 | auto DL = ApplyDebugLocation::CreateDefaultArtificial(CGF, Loc); | ||||
2831 | emitForStaticInitCall(CGF, UpdatedLocation, ThreadId, StaticInitFunction, | ||||
2832 | ScheduleNum, ScheduleKind.M1, ScheduleKind.M2, Values); | ||||
2833 | } | ||||
2834 | |||||
2835 | void CGOpenMPRuntime::emitDistributeStaticInit( | ||||
2836 | CodeGenFunction &CGF, SourceLocation Loc, | ||||
2837 | OpenMPDistScheduleClauseKind SchedKind, | ||||
2838 | const CGOpenMPRuntime::StaticRTInput &Values) { | ||||
2839 | OpenMPSchedType ScheduleNum = | ||||
2840 | getRuntimeSchedule(SchedKind, Values.Chunk != nullptr); | ||||
2841 | llvm::Value *UpdatedLocation = | ||||
2842 | emitUpdateLocation(CGF, Loc, OMP_IDENT_WORK_DISTRIBUTE); | ||||
2843 | llvm::Value *ThreadId = getThreadID(CGF, Loc); | ||||
2844 | llvm::FunctionCallee StaticInitFunction = | ||||
2845 | createForStaticInitFunction(Values.IVSize, Values.IVSigned); | ||||
2846 | emitForStaticInitCall(CGF, UpdatedLocation, ThreadId, StaticInitFunction, | ||||
2847 | ScheduleNum, OMPC_SCHEDULE_MODIFIER_unknown, | ||||
2848 | OMPC_SCHEDULE_MODIFIER_unknown, Values); | ||||
2849 | } | ||||
2850 | |||||
2851 | void CGOpenMPRuntime::emitForStaticFinish(CodeGenFunction &CGF, | ||||
2852 | SourceLocation Loc, | ||||
2853 | OpenMPDirectiveKind DKind) { | ||||
2854 | if (!CGF.HaveInsertPoint()) | ||||
2855 | return; | ||||
2856 | // Call __kmpc_for_static_fini(ident_t *loc, kmp_int32 tid); | ||||
2857 | llvm::Value *Args[] = { | ||||
2858 | emitUpdateLocation(CGF, Loc, | ||||
2859 | isOpenMPDistributeDirective(DKind) | ||||
2860 | ? OMP_IDENT_WORK_DISTRIBUTE | ||||
2861 | : isOpenMPLoopDirective(DKind) | ||||
2862 | ? OMP_IDENT_WORK_LOOP | ||||
2863 | : OMP_IDENT_WORK_SECTIONS), | ||||
2864 | getThreadID(CGF, Loc)}; | ||||
2865 | auto DL = ApplyDebugLocation::CreateDefaultArtificial(CGF, Loc); | ||||
2866 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2867 | CGM.getModule(), OMPRTL___kmpc_for_static_fini), | ||||
2868 | Args); | ||||
2869 | } | ||||
2870 | |||||
2871 | void CGOpenMPRuntime::emitForOrderedIterationEnd(CodeGenFunction &CGF, | ||||
2872 | SourceLocation Loc, | ||||
2873 | unsigned IVSize, | ||||
2874 | bool IVSigned) { | ||||
2875 | if (!CGF.HaveInsertPoint()) | ||||
2876 | return; | ||||
2877 | // Call __kmpc_for_dynamic_fini_(4|8)[u](ident_t *loc, kmp_int32 tid); | ||||
2878 | llvm::Value *Args[] = {emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc)}; | ||||
2879 | CGF.EmitRuntimeCall(createDispatchFiniFunction(IVSize, IVSigned), Args); | ||||
2880 | } | ||||
2881 | |||||
2882 | llvm::Value *CGOpenMPRuntime::emitForNext(CodeGenFunction &CGF, | ||||
2883 | SourceLocation Loc, unsigned IVSize, | ||||
2884 | bool IVSigned, Address IL, | ||||
2885 | Address LB, Address UB, | ||||
2886 | Address ST) { | ||||
2887 | // Call __kmpc_dispatch_next( | ||||
2888 | // ident_t *loc, kmp_int32 tid, kmp_int32 *p_lastiter, | ||||
2889 | // kmp_int[32|64] *p_lower, kmp_int[32|64] *p_upper, | ||||
2890 | // kmp_int[32|64] *p_stride); | ||||
2891 | llvm::Value *Args[] = { | ||||
2892 | emitUpdateLocation(CGF, Loc), | ||||
2893 | getThreadID(CGF, Loc), | ||||
2894 | IL.getPointer(), // &isLastIter | ||||
2895 | LB.getPointer(), // &Lower | ||||
2896 | UB.getPointer(), // &Upper | ||||
2897 | ST.getPointer() // &Stride | ||||
2898 | }; | ||||
2899 | llvm::Value *Call = | ||||
2900 | CGF.EmitRuntimeCall(createDispatchNextFunction(IVSize, IVSigned), Args); | ||||
2901 | return CGF.EmitScalarConversion( | ||||
2902 | Call, CGF.getContext().getIntTypeForBitwidth(32, /*Signed=*/1), | ||||
2903 | CGF.getContext().BoolTy, Loc); | ||||
2904 | } | ||||
2905 | |||||
2906 | void CGOpenMPRuntime::emitNumThreadsClause(CodeGenFunction &CGF, | ||||
2907 | llvm::Value *NumThreads, | ||||
2908 | SourceLocation Loc) { | ||||
2909 | if (!CGF.HaveInsertPoint()) | ||||
2910 | return; | ||||
2911 | // Build call __kmpc_push_num_threads(&loc, global_tid, num_threads) | ||||
2912 | llvm::Value *Args[] = { | ||||
2913 | emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc), | ||||
2914 | CGF.Builder.CreateIntCast(NumThreads, CGF.Int32Ty, /*isSigned*/ true)}; | ||||
2915 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2916 | CGM.getModule(), OMPRTL___kmpc_push_num_threads), | ||||
2917 | Args); | ||||
2918 | } | ||||
2919 | |||||
2920 | void CGOpenMPRuntime::emitProcBindClause(CodeGenFunction &CGF, | ||||
2921 | ProcBindKind ProcBind, | ||||
2922 | SourceLocation Loc) { | ||||
2923 | if (!CGF.HaveInsertPoint()) | ||||
2924 | return; | ||||
2925 | assert(ProcBind != OMP_PROC_BIND_unknown && "Unsupported proc_bind value.")((void)0); | ||||
2926 | // Build call __kmpc_push_proc_bind(&loc, global_tid, proc_bind) | ||||
2927 | llvm::Value *Args[] = { | ||||
2928 | emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc), | ||||
2929 | llvm::ConstantInt::get(CGM.IntTy, unsigned(ProcBind), /*isSigned=*/true)}; | ||||
2930 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2931 | CGM.getModule(), OMPRTL___kmpc_push_proc_bind), | ||||
2932 | Args); | ||||
2933 | } | ||||
2934 | |||||
2935 | void CGOpenMPRuntime::emitFlush(CodeGenFunction &CGF, ArrayRef<const Expr *>, | ||||
2936 | SourceLocation Loc, llvm::AtomicOrdering AO) { | ||||
2937 | if (CGF.CGM.getLangOpts().OpenMPIRBuilder) { | ||||
2938 | OMPBuilder.createFlush(CGF.Builder); | ||||
2939 | } else { | ||||
2940 | if (!CGF.HaveInsertPoint()) | ||||
2941 | return; | ||||
2942 | // Build call void __kmpc_flush(ident_t *loc) | ||||
2943 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
2944 | CGM.getModule(), OMPRTL___kmpc_flush), | ||||
2945 | emitUpdateLocation(CGF, Loc)); | ||||
2946 | } | ||||
2947 | } | ||||
2948 | |||||
2949 | namespace { | ||||
2950 | /// Indexes of fields for type kmp_task_t. | ||||
2951 | enum KmpTaskTFields { | ||||
2952 | /// List of shared variables. | ||||
2953 | KmpTaskTShareds, | ||||
2954 | /// Task routine. | ||||
2955 | KmpTaskTRoutine, | ||||
2956 | /// Partition id for the untied tasks. | ||||
2957 | KmpTaskTPartId, | ||||
2958 | /// Function with call of destructors for private variables. | ||||
2959 | Data1, | ||||
2960 | /// Task priority. | ||||
2961 | Data2, | ||||
2962 | /// (Taskloops only) Lower bound. | ||||
2963 | KmpTaskTLowerBound, | ||||
2964 | /// (Taskloops only) Upper bound. | ||||
2965 | KmpTaskTUpperBound, | ||||
2966 | /// (Taskloops only) Stride. | ||||
2967 | KmpTaskTStride, | ||||
2968 | /// (Taskloops only) Is last iteration flag. | ||||
2969 | KmpTaskTLastIter, | ||||
2970 | /// (Taskloops only) Reduction data. | ||||
2971 | KmpTaskTReductions, | ||||
2972 | }; | ||||
2973 | } // anonymous namespace | ||||
2974 | |||||
2975 | bool CGOpenMPRuntime::OffloadEntriesInfoManagerTy::empty() const { | ||||
2976 | return OffloadEntriesTargetRegion.empty() && | ||||
2977 | OffloadEntriesDeviceGlobalVar.empty(); | ||||
2978 | } | ||||
2979 | |||||
2980 | /// Initialize target region entry. | ||||
2981 | void CGOpenMPRuntime::OffloadEntriesInfoManagerTy:: | ||||
2982 | initializeTargetRegionEntryInfo(unsigned DeviceID, unsigned FileID, | ||||
2983 | StringRef ParentName, unsigned LineNum, | ||||
2984 | unsigned Order) { | ||||
2985 | assert(CGM.getLangOpts().OpenMPIsDevice && "Initialization of entries is "((void)0) | ||||
2986 | "only required for the device "((void)0) | ||||
2987 | "code generation.")((void)0); | ||||
2988 | OffloadEntriesTargetRegion[DeviceID][FileID][ParentName][LineNum] = | ||||
2989 | OffloadEntryInfoTargetRegion(Order, /*Addr=*/nullptr, /*ID=*/nullptr, | ||||
2990 | OMPTargetRegionEntryTargetRegion); | ||||
2991 | ++OffloadingEntriesNum; | ||||
2992 | } | ||||
2993 | |||||
2994 | void CGOpenMPRuntime::OffloadEntriesInfoManagerTy:: | ||||
2995 | registerTargetRegionEntryInfo(unsigned DeviceID, unsigned FileID, | ||||
2996 | StringRef ParentName, unsigned LineNum, | ||||
2997 | llvm::Constant *Addr, llvm::Constant *ID, | ||||
2998 | OMPTargetRegionEntryKind Flags) { | ||||
2999 | // If we are emitting code for a target, the entry is already initialized, | ||||
3000 | // only has to be registered. | ||||
3001 | if (CGM.getLangOpts().OpenMPIsDevice) { | ||||
3002 | // This could happen if the device compilation is invoked standalone. | ||||
3003 | if (!hasTargetRegionEntryInfo(DeviceID, FileID, ParentName, LineNum)) | ||||
3004 | return; | ||||
3005 | auto &Entry = | ||||
3006 | OffloadEntriesTargetRegion[DeviceID][FileID][ParentName][LineNum]; | ||||
3007 | Entry.setAddress(Addr); | ||||
3008 | Entry.setID(ID); | ||||
3009 | Entry.setFlags(Flags); | ||||
3010 | } else { | ||||
3011 | if (Flags == | ||||
3012 | OffloadEntriesInfoManagerTy::OMPTargetRegionEntryTargetRegion && | ||||
3013 | hasTargetRegionEntryInfo(DeviceID, FileID, ParentName, LineNum, | ||||
3014 | /*IgnoreAddressId*/ true)) | ||||
3015 | return; | ||||
3016 | assert(!hasTargetRegionEntryInfo(DeviceID, FileID, ParentName, LineNum) &&((void)0) | ||||
3017 | "Target region entry already registered!")((void)0); | ||||
3018 | OffloadEntryInfoTargetRegion Entry(OffloadingEntriesNum, Addr, ID, Flags); | ||||
3019 | OffloadEntriesTargetRegion[DeviceID][FileID][ParentName][LineNum] = Entry; | ||||
3020 | ++OffloadingEntriesNum; | ||||
3021 | } | ||||
3022 | } | ||||
3023 | |||||
3024 | bool CGOpenMPRuntime::OffloadEntriesInfoManagerTy::hasTargetRegionEntryInfo( | ||||
3025 | unsigned DeviceID, unsigned FileID, StringRef ParentName, unsigned LineNum, | ||||
3026 | bool IgnoreAddressId) const { | ||||
3027 | auto PerDevice = OffloadEntriesTargetRegion.find(DeviceID); | ||||
3028 | if (PerDevice == OffloadEntriesTargetRegion.end()) | ||||
3029 | return false; | ||||
3030 | auto PerFile = PerDevice->second.find(FileID); | ||||
3031 | if (PerFile == PerDevice->second.end()) | ||||
3032 | return false; | ||||
3033 | auto PerParentName = PerFile->second.find(ParentName); | ||||
3034 | if (PerParentName == PerFile->second.end()) | ||||
3035 | return false; | ||||
3036 | auto PerLine = PerParentName->second.find(LineNum); | ||||
3037 | if (PerLine == PerParentName->second.end()) | ||||
3038 | return false; | ||||
3039 | // Fail if this entry is already registered. | ||||
3040 | if (!IgnoreAddressId && | ||||
3041 | (PerLine->second.getAddress() || PerLine->second.getID())) | ||||
3042 | return false; | ||||
3043 | return true; | ||||
3044 | } | ||||
3045 | |||||
3046 | void CGOpenMPRuntime::OffloadEntriesInfoManagerTy::actOnTargetRegionEntriesInfo( | ||||
3047 | const OffloadTargetRegionEntryInfoActTy &Action) { | ||||
3048 | // Scan all target region entries and perform the provided action. | ||||
3049 | for (const auto &D : OffloadEntriesTargetRegion) | ||||
3050 | for (const auto &F : D.second) | ||||
3051 | for (const auto &P : F.second) | ||||
3052 | for (const auto &L : P.second) | ||||
3053 | Action(D.first, F.first, P.first(), L.first, L.second); | ||||
3054 | } | ||||
3055 | |||||
3056 | void CGOpenMPRuntime::OffloadEntriesInfoManagerTy:: | ||||
3057 | initializeDeviceGlobalVarEntryInfo(StringRef Name, | ||||
3058 | OMPTargetGlobalVarEntryKind Flags, | ||||
3059 | unsigned Order) { | ||||
3060 | assert(CGM.getLangOpts().OpenMPIsDevice && "Initialization of entries is "((void)0) | ||||
3061 | "only required for the device "((void)0) | ||||
3062 | "code generation.")((void)0); | ||||
3063 | OffloadEntriesDeviceGlobalVar.try_emplace(Name, Order, Flags); | ||||
3064 | ++OffloadingEntriesNum; | ||||
3065 | } | ||||
3066 | |||||
3067 | void CGOpenMPRuntime::OffloadEntriesInfoManagerTy:: | ||||
3068 | registerDeviceGlobalVarEntryInfo(StringRef VarName, llvm::Constant *Addr, | ||||
3069 | CharUnits VarSize, | ||||
3070 | OMPTargetGlobalVarEntryKind Flags, | ||||
3071 | llvm::GlobalValue::LinkageTypes Linkage) { | ||||
3072 | if (CGM.getLangOpts().OpenMPIsDevice) { | ||||
3073 | // This could happen if the device compilation is invoked standalone. | ||||
3074 | if (!hasDeviceGlobalVarEntryInfo(VarName)) | ||||
3075 | return; | ||||
3076 | auto &Entry = OffloadEntriesDeviceGlobalVar[VarName]; | ||||
3077 | if (Entry.getAddress() && hasDeviceGlobalVarEntryInfo(VarName)) { | ||||
3078 | if (Entry.getVarSize().isZero()) { | ||||
3079 | Entry.setVarSize(VarSize); | ||||
3080 | Entry.setLinkage(Linkage); | ||||
3081 | } | ||||
3082 | return; | ||||
3083 | } | ||||
3084 | Entry.setVarSize(VarSize); | ||||
3085 | Entry.setLinkage(Linkage); | ||||
3086 | Entry.setAddress(Addr); | ||||
3087 | } else { | ||||
3088 | if (hasDeviceGlobalVarEntryInfo(VarName)) { | ||||
3089 | auto &Entry = OffloadEntriesDeviceGlobalVar[VarName]; | ||||
3090 | assert(Entry.isValid() && Entry.getFlags() == Flags &&((void)0) | ||||
3091 | "Entry not initialized!")((void)0); | ||||
3092 | if (Entry.getVarSize().isZero()) { | ||||
3093 | Entry.setVarSize(VarSize); | ||||
3094 | Entry.setLinkage(Linkage); | ||||
3095 | } | ||||
3096 | return; | ||||
3097 | } | ||||
3098 | OffloadEntriesDeviceGlobalVar.try_emplace( | ||||
3099 | VarName, OffloadingEntriesNum, Addr, VarSize, Flags, Linkage); | ||||
3100 | ++OffloadingEntriesNum; | ||||
3101 | } | ||||
3102 | } | ||||
3103 | |||||
3104 | void CGOpenMPRuntime::OffloadEntriesInfoManagerTy:: | ||||
3105 | actOnDeviceGlobalVarEntriesInfo( | ||||
3106 | const OffloadDeviceGlobalVarEntryInfoActTy &Action) { | ||||
3107 | // Scan all target region entries and perform the provided action. | ||||
3108 | for (const auto &E : OffloadEntriesDeviceGlobalVar) | ||||
3109 | Action(E.getKey(), E.getValue()); | ||||
3110 | } | ||||
3111 | |||||
3112 | void CGOpenMPRuntime::createOffloadEntry( | ||||
3113 | llvm::Constant *ID, llvm::Constant *Addr, uint64_t Size, int32_t Flags, | ||||
3114 | llvm::GlobalValue::LinkageTypes Linkage) { | ||||
3115 | StringRef Name = Addr->getName(); | ||||
3116 | llvm::Module &M = CGM.getModule(); | ||||
3117 | llvm::LLVMContext &C = M.getContext(); | ||||
3118 | |||||
3119 | // Create constant string with the name. | ||||
3120 | llvm::Constant *StrPtrInit = llvm::ConstantDataArray::getString(C, Name); | ||||
3121 | |||||
3122 | std::string StringName = getName({"omp_offloading", "entry_name"}); | ||||
3123 | auto *Str = new llvm::GlobalVariable( | ||||
3124 | M, StrPtrInit->getType(), /*isConstant=*/true, | ||||
3125 | llvm::GlobalValue::InternalLinkage, StrPtrInit, StringName); | ||||
3126 | Str->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global); | ||||
3127 | |||||
3128 | llvm::Constant *Data[] = { | ||||
3129 | llvm::ConstantExpr::getPointerBitCastOrAddrSpaceCast(ID, CGM.VoidPtrTy), | ||||
3130 | llvm::ConstantExpr::getPointerBitCastOrAddrSpaceCast(Str, CGM.Int8PtrTy), | ||||
3131 | llvm::ConstantInt::get(CGM.SizeTy, Size), | ||||
3132 | llvm::ConstantInt::get(CGM.Int32Ty, Flags), | ||||
3133 | llvm::ConstantInt::get(CGM.Int32Ty, 0)}; | ||||
3134 | std::string EntryName = getName({"omp_offloading", "entry", ""}); | ||||
3135 | llvm::GlobalVariable *Entry = createGlobalStruct( | ||||
3136 | CGM, getTgtOffloadEntryQTy(), /*IsConstant=*/true, Data, | ||||
3137 | Twine(EntryName).concat(Name), llvm::GlobalValue::WeakAnyLinkage); | ||||
3138 | |||||
3139 | // The entry has to be created in the section the linker expects it to be. | ||||
3140 | Entry->setSection("omp_offloading_entries"); | ||||
3141 | } | ||||
3142 | |||||
3143 | void CGOpenMPRuntime::createOffloadEntriesAndInfoMetadata() { | ||||
3144 | // Emit the offloading entries and metadata so that the device codegen side | ||||
3145 | // can easily figure out what to emit. The produced metadata looks like | ||||
3146 | // this: | ||||
3147 | // | ||||
3148 | // !omp_offload.info = !{!1, ...} | ||||
3149 | // | ||||
3150 | // Right now we only generate metadata for function that contain target | ||||
3151 | // regions. | ||||
3152 | |||||
3153 | // If we are in simd mode or there are no entries, we don't need to do | ||||
3154 | // anything. | ||||
3155 | if (CGM.getLangOpts().OpenMPSimd || OffloadEntriesInfoManager.empty()) | ||||
3156 | return; | ||||
3157 | |||||
3158 | llvm::Module &M = CGM.getModule(); | ||||
3159 | llvm::LLVMContext &C = M.getContext(); | ||||
3160 | SmallVector<std::tuple<const OffloadEntriesInfoManagerTy::OffloadEntryInfo *, | ||||
3161 | SourceLocation, StringRef>, | ||||
3162 | 16> | ||||
3163 | OrderedEntries(OffloadEntriesInfoManager.size()); | ||||
3164 | llvm::SmallVector<StringRef, 16> ParentFunctions( | ||||
3165 | OffloadEntriesInfoManager.size()); | ||||
3166 | |||||
3167 | // Auxiliary methods to create metadata values and strings. | ||||
3168 | auto &&GetMDInt = [this](unsigned V) { | ||||
3169 | return llvm::ConstantAsMetadata::get( | ||||
3170 | llvm::ConstantInt::get(CGM.Int32Ty, V)); | ||||
3171 | }; | ||||
3172 | |||||
3173 | auto &&GetMDString = [&C](StringRef V) { return llvm::MDString::get(C, V); }; | ||||
3174 | |||||
3175 | // Create the offloading info metadata node. | ||||
3176 | llvm::NamedMDNode *MD = M.getOrInsertNamedMetadata("omp_offload.info"); | ||||
3177 | |||||
3178 | // Create function that emits metadata for each target region entry; | ||||
3179 | auto &&TargetRegionMetadataEmitter = | ||||
3180 | [this, &C, MD, &OrderedEntries, &ParentFunctions, &GetMDInt, | ||||
3181 | &GetMDString]( | ||||
3182 | unsigned DeviceID, unsigned FileID, StringRef ParentName, | ||||
3183 | unsigned Line, | ||||
3184 | const OffloadEntriesInfoManagerTy::OffloadEntryInfoTargetRegion &E) { | ||||
3185 | // Generate metadata for target regions. Each entry of this metadata | ||||
3186 | // contains: | ||||
3187 | // - Entry 0 -> Kind of this type of metadata (0). | ||||
3188 | // - Entry 1 -> Device ID of the file where the entry was identified. | ||||
3189 | // - Entry 2 -> File ID of the file where the entry was identified. | ||||
3190 | // - Entry 3 -> Mangled name of the function where the entry was | ||||
3191 | // identified. | ||||
3192 | // - Entry 4 -> Line in the file where the entry was identified. | ||||
3193 | // - Entry 5 -> Order the entry was created. | ||||
3194 | // The first element of the metadata node is the kind. | ||||
3195 | llvm::Metadata *Ops[] = {GetMDInt(E.getKind()), GetMDInt(DeviceID), | ||||
3196 | GetMDInt(FileID), GetMDString(ParentName), | ||||
3197 | GetMDInt(Line), GetMDInt(E.getOrder())}; | ||||
3198 | |||||
3199 | SourceLocation Loc; | ||||
3200 | for (auto I = CGM.getContext().getSourceManager().fileinfo_begin(), | ||||
3201 | E = CGM.getContext().getSourceManager().fileinfo_end(); | ||||
3202 | I != E; ++I) { | ||||
3203 | if (I->getFirst()->getUniqueID().getDevice() == DeviceID && | ||||
3204 | I->getFirst()->getUniqueID().getFile() == FileID) { | ||||
3205 | Loc = CGM.getContext().getSourceManager().translateFileLineCol( | ||||
3206 | I->getFirst(), Line, 1); | ||||
3207 | break; | ||||
3208 | } | ||||
3209 | } | ||||
3210 | // Save this entry in the right position of the ordered entries array. | ||||
3211 | OrderedEntries[E.getOrder()] = std::make_tuple(&E, Loc, ParentName); | ||||
3212 | ParentFunctions[E.getOrder()] = ParentName; | ||||
3213 | |||||
3214 | // Add metadata to the named metadata node. | ||||
3215 | MD->addOperand(llvm::MDNode::get(C, Ops)); | ||||
3216 | }; | ||||
3217 | |||||
3218 | OffloadEntriesInfoManager.actOnTargetRegionEntriesInfo( | ||||
3219 | TargetRegionMetadataEmitter); | ||||
3220 | |||||
3221 | // Create function that emits metadata for each device global variable entry; | ||||
3222 | auto &&DeviceGlobalVarMetadataEmitter = | ||||
3223 | [&C, &OrderedEntries, &GetMDInt, &GetMDString, | ||||
3224 | MD](StringRef MangledName, | ||||
3225 | const OffloadEntriesInfoManagerTy::OffloadEntryInfoDeviceGlobalVar | ||||
3226 | &E) { | ||||
3227 | // Generate metadata for global variables. Each entry of this metadata | ||||
3228 | // contains: | ||||
3229 | // - Entry 0 -> Kind of this type of metadata (1). | ||||
3230 | // - Entry 1 -> Mangled name of the variable. | ||||
3231 | // - Entry 2 -> Declare target kind. | ||||
3232 | // - Entry 3 -> Order the entry was created. | ||||
3233 | // The first element of the metadata node is the kind. | ||||
3234 | llvm::Metadata *Ops[] = { | ||||
3235 | GetMDInt(E.getKind()), GetMDString(MangledName), | ||||
3236 | GetMDInt(E.getFlags()), GetMDInt(E.getOrder())}; | ||||
3237 | |||||
3238 | // Save this entry in the right position of the ordered entries array. | ||||
3239 | OrderedEntries[E.getOrder()] = | ||||
3240 | std::make_tuple(&E, SourceLocation(), MangledName); | ||||
3241 | |||||
3242 | // Add metadata to the named metadata node. | ||||
3243 | MD->addOperand(llvm::MDNode::get(C, Ops)); | ||||
3244 | }; | ||||
3245 | |||||
3246 | OffloadEntriesInfoManager.actOnDeviceGlobalVarEntriesInfo( | ||||
3247 | DeviceGlobalVarMetadataEmitter); | ||||
3248 | |||||
3249 | for (const auto &E : OrderedEntries) { | ||||
3250 | assert(std::get<0>(E) && "All ordered entries must exist!")((void)0); | ||||
3251 | if (const auto *CE = | ||||
3252 | dyn_cast<OffloadEntriesInfoManagerTy::OffloadEntryInfoTargetRegion>( | ||||
3253 | std::get<0>(E))) { | ||||
3254 | if (!CE->getID() || !CE->getAddress()) { | ||||
3255 | // Do not blame the entry if the parent funtion is not emitted. | ||||
3256 | StringRef FnName = ParentFunctions[CE->getOrder()]; | ||||
3257 | if (!CGM.GetGlobalValue(FnName)) | ||||
3258 | continue; | ||||
3259 | unsigned DiagID = CGM.getDiags().getCustomDiagID( | ||||
3260 | DiagnosticsEngine::Error, | ||||
3261 | "Offloading entry for target region in %0 is incorrect: either the " | ||||
3262 | "address or the ID is invalid."); | ||||
3263 | CGM.getDiags().Report(std::get<1>(E), DiagID) << FnName; | ||||
3264 | continue; | ||||
3265 | } | ||||
3266 | createOffloadEntry(CE->getID(), CE->getAddress(), /*Size=*/0, | ||||
3267 | CE->getFlags(), llvm::GlobalValue::WeakAnyLinkage); | ||||
3268 | } else if (const auto *CE = dyn_cast<OffloadEntriesInfoManagerTy:: | ||||
3269 | OffloadEntryInfoDeviceGlobalVar>( | ||||
3270 | std::get<0>(E))) { | ||||
3271 | OffloadEntriesInfoManagerTy::OMPTargetGlobalVarEntryKind Flags = | ||||
3272 | static_cast<OffloadEntriesInfoManagerTy::OMPTargetGlobalVarEntryKind>( | ||||
3273 | CE->getFlags()); | ||||
3274 | switch (Flags) { | ||||
3275 | case OffloadEntriesInfoManagerTy::OMPTargetGlobalVarEntryTo: { | ||||
3276 | if (CGM.getLangOpts().OpenMPIsDevice && | ||||
3277 | CGM.getOpenMPRuntime().hasRequiresUnifiedSharedMemory()) | ||||
3278 | continue; | ||||
3279 | if (!CE->getAddress()) { | ||||
3280 | unsigned DiagID = CGM.getDiags().getCustomDiagID( | ||||
3281 | DiagnosticsEngine::Error, "Offloading entry for declare target " | ||||
3282 | "variable %0 is incorrect: the " | ||||
3283 | "address is invalid."); | ||||
3284 | CGM.getDiags().Report(std::get<1>(E), DiagID) << std::get<2>(E); | ||||
3285 | continue; | ||||
3286 | } | ||||
3287 | // The vaiable has no definition - no need to add the entry. | ||||
3288 | if (CE->getVarSize().isZero()) | ||||
3289 | continue; | ||||
3290 | break; | ||||
3291 | } | ||||
3292 | case OffloadEntriesInfoManagerTy::OMPTargetGlobalVarEntryLink: | ||||
3293 | assert(((CGM.getLangOpts().OpenMPIsDevice && !CE->getAddress()) ||((void)0) | ||||
3294 | (!CGM.getLangOpts().OpenMPIsDevice && CE->getAddress())) &&((void)0) | ||||
3295 | "Declaret target link address is set.")((void)0); | ||||
3296 | if (CGM.getLangOpts().OpenMPIsDevice) | ||||
3297 | continue; | ||||
3298 | if (!CE->getAddress()) { | ||||
3299 | unsigned DiagID = CGM.getDiags().getCustomDiagID( | ||||
3300 | DiagnosticsEngine::Error, | ||||
3301 | "Offloading entry for declare target variable is incorrect: the " | ||||
3302 | "address is invalid."); | ||||
3303 | CGM.getDiags().Report(DiagID); | ||||
3304 | continue; | ||||
3305 | } | ||||
3306 | break; | ||||
3307 | } | ||||
3308 | createOffloadEntry(CE->getAddress(), CE->getAddress(), | ||||
3309 | CE->getVarSize().getQuantity(), Flags, | ||||
3310 | CE->getLinkage()); | ||||
3311 | } else { | ||||
3312 | llvm_unreachable("Unsupported entry kind.")__builtin_unreachable(); | ||||
3313 | } | ||||
3314 | } | ||||
3315 | } | ||||
3316 | |||||
3317 | /// Loads all the offload entries information from the host IR | ||||
3318 | /// metadata. | ||||
3319 | void CGOpenMPRuntime::loadOffloadInfoMetadata() { | ||||
3320 | // If we are in target mode, load the metadata from the host IR. This code has | ||||
3321 | // to match the metadaata creation in createOffloadEntriesAndInfoMetadata(). | ||||
3322 | |||||
3323 | if (!CGM.getLangOpts().OpenMPIsDevice) | ||||
3324 | return; | ||||
3325 | |||||
3326 | if (CGM.getLangOpts().OMPHostIRFile.empty()) | ||||
3327 | return; | ||||
3328 | |||||
3329 | auto Buf = llvm::MemoryBuffer::getFile(CGM.getLangOpts().OMPHostIRFile); | ||||
3330 | if (auto EC = Buf.getError()) { | ||||
3331 | CGM.getDiags().Report(diag::err_cannot_open_file) | ||||
3332 | << CGM.getLangOpts().OMPHostIRFile << EC.message(); | ||||
3333 | return; | ||||
3334 | } | ||||
3335 | |||||
3336 | llvm::LLVMContext C; | ||||
3337 | auto ME = expectedToErrorOrAndEmitErrors( | ||||
3338 | C, llvm::parseBitcodeFile(Buf.get()->getMemBufferRef(), C)); | ||||
3339 | |||||
3340 | if (auto EC = ME.getError()) { | ||||
3341 | unsigned DiagID = CGM.getDiags().getCustomDiagID( | ||||
3342 | DiagnosticsEngine::Error, "Unable to parse host IR file '%0':'%1'"); | ||||
3343 | CGM.getDiags().Report(DiagID) | ||||
3344 | << CGM.getLangOpts().OMPHostIRFile << EC.message(); | ||||
3345 | return; | ||||
3346 | } | ||||
3347 | |||||
3348 | llvm::NamedMDNode *MD = ME.get()->getNamedMetadata("omp_offload.info"); | ||||
3349 | if (!MD) | ||||
3350 | return; | ||||
3351 | |||||
3352 | for (llvm::MDNode *MN : MD->operands()) { | ||||
3353 | auto &&GetMDInt = [MN](unsigned Idx) { | ||||
3354 | auto *V = cast<llvm::ConstantAsMetadata>(MN->getOperand(Idx)); | ||||
3355 | return cast<llvm::ConstantInt>(V->getValue())->getZExtValue(); | ||||
3356 | }; | ||||
3357 | |||||
3358 | auto &&GetMDString = [MN](unsigned Idx) { | ||||
3359 | auto *V = cast<llvm::MDString>(MN->getOperand(Idx)); | ||||
3360 | return V->getString(); | ||||
3361 | }; | ||||
3362 | |||||
3363 | switch (GetMDInt(0)) { | ||||
3364 | default: | ||||
3365 | llvm_unreachable("Unexpected metadata!")__builtin_unreachable(); | ||||
3366 | break; | ||||
3367 | case OffloadEntriesInfoManagerTy::OffloadEntryInfo:: | ||||
3368 | OffloadingEntryInfoTargetRegion: | ||||
3369 | OffloadEntriesInfoManager.initializeTargetRegionEntryInfo( | ||||
3370 | /*DeviceID=*/GetMDInt(1), /*FileID=*/GetMDInt(2), | ||||
3371 | /*ParentName=*/GetMDString(3), /*Line=*/GetMDInt(4), | ||||
3372 | /*Order=*/GetMDInt(5)); | ||||
3373 | break; | ||||
3374 | case OffloadEntriesInfoManagerTy::OffloadEntryInfo:: | ||||
3375 | OffloadingEntryInfoDeviceGlobalVar: | ||||
3376 | OffloadEntriesInfoManager.initializeDeviceGlobalVarEntryInfo( | ||||
3377 | /*MangledName=*/GetMDString(1), | ||||
3378 | static_cast<OffloadEntriesInfoManagerTy::OMPTargetGlobalVarEntryKind>( | ||||
3379 | /*Flags=*/GetMDInt(2)), | ||||
3380 | /*Order=*/GetMDInt(3)); | ||||
3381 | break; | ||||
3382 | } | ||||
3383 | } | ||||
3384 | } | ||||
3385 | |||||
3386 | void CGOpenMPRuntime::emitKmpRoutineEntryT(QualType KmpInt32Ty) { | ||||
3387 | if (!KmpRoutineEntryPtrTy) { | ||||
3388 | // Build typedef kmp_int32 (* kmp_routine_entry_t)(kmp_int32, void *); type. | ||||
3389 | ASTContext &C = CGM.getContext(); | ||||
3390 | QualType KmpRoutineEntryTyArgs[] = {KmpInt32Ty, C.VoidPtrTy}; | ||||
3391 | FunctionProtoType::ExtProtoInfo EPI; | ||||
3392 | KmpRoutineEntryPtrQTy = C.getPointerType( | ||||
3393 | C.getFunctionType(KmpInt32Ty, KmpRoutineEntryTyArgs, EPI)); | ||||
3394 | KmpRoutineEntryPtrTy = CGM.getTypes().ConvertType(KmpRoutineEntryPtrQTy); | ||||
3395 | } | ||||
3396 | } | ||||
3397 | |||||
3398 | QualType CGOpenMPRuntime::getTgtOffloadEntryQTy() { | ||||
3399 | // Make sure the type of the entry is already created. This is the type we | ||||
3400 | // have to create: | ||||
3401 | // struct __tgt_offload_entry{ | ||||
3402 | // void *addr; // Pointer to the offload entry info. | ||||
3403 | // // (function or global) | ||||
3404 | // char *name; // Name of the function or global. | ||||
3405 | // size_t size; // Size of the entry info (0 if it a function). | ||||
3406 | // int32_t flags; // Flags associated with the entry, e.g. 'link'. | ||||
3407 | // int32_t reserved; // Reserved, to use by the runtime library. | ||||
3408 | // }; | ||||
3409 | if (TgtOffloadEntryQTy.isNull()) { | ||||
3410 | ASTContext &C = CGM.getContext(); | ||||
3411 | RecordDecl *RD = C.buildImplicitRecord("__tgt_offload_entry"); | ||||
3412 | RD->startDefinition(); | ||||
3413 | addFieldToRecordDecl(C, RD, C.VoidPtrTy); | ||||
3414 | addFieldToRecordDecl(C, RD, C.getPointerType(C.CharTy)); | ||||
3415 | addFieldToRecordDecl(C, RD, C.getSizeType()); | ||||
3416 | addFieldToRecordDecl( | ||||
3417 | C, RD, C.getIntTypeForBitwidth(/*DestWidth=*/32, /*Signed=*/true)); | ||||
3418 | addFieldToRecordDecl( | ||||
3419 | C, RD, C.getIntTypeForBitwidth(/*DestWidth=*/32, /*Signed=*/true)); | ||||
3420 | RD->completeDefinition(); | ||||
3421 | RD->addAttr(PackedAttr::CreateImplicit(C)); | ||||
3422 | TgtOffloadEntryQTy = C.getRecordType(RD); | ||||
3423 | } | ||||
3424 | return TgtOffloadEntryQTy; | ||||
3425 | } | ||||
3426 | |||||
3427 | namespace { | ||||
3428 | struct PrivateHelpersTy { | ||||
3429 | PrivateHelpersTy(const Expr *OriginalRef, const VarDecl *Original, | ||||
3430 | const VarDecl *PrivateCopy, const VarDecl *PrivateElemInit) | ||||
3431 | : OriginalRef(OriginalRef), Original(Original), PrivateCopy(PrivateCopy), | ||||
3432 | PrivateElemInit(PrivateElemInit) {} | ||||
3433 | PrivateHelpersTy(const VarDecl *Original) : Original(Original) {} | ||||
3434 | const Expr *OriginalRef = nullptr; | ||||
3435 | const VarDecl *Original = nullptr; | ||||
3436 | const VarDecl *PrivateCopy = nullptr; | ||||
3437 | const VarDecl *PrivateElemInit = nullptr; | ||||
3438 | bool isLocalPrivate() const { | ||||
3439 | return !OriginalRef && !PrivateCopy && !PrivateElemInit; | ||||
3440 | } | ||||
3441 | }; | ||||
3442 | typedef std::pair<CharUnits /*Align*/, PrivateHelpersTy> PrivateDataTy; | ||||
3443 | } // anonymous namespace | ||||
3444 | |||||
3445 | static bool isAllocatableDecl(const VarDecl *VD) { | ||||
3446 | const VarDecl *CVD = VD->getCanonicalDecl(); | ||||
3447 | if (!CVD->hasAttr<OMPAllocateDeclAttr>()) | ||||
3448 | return false; | ||||
3449 | const auto *AA = CVD->getAttr<OMPAllocateDeclAttr>(); | ||||
3450 | // Use the default allocation. | ||||
3451 | return !((AA->getAllocatorType() == OMPAllocateDeclAttr::OMPDefaultMemAlloc || | ||||
3452 | AA->getAllocatorType() == OMPAllocateDeclAttr::OMPNullMemAlloc) && | ||||
3453 | !AA->getAllocator()); | ||||
3454 | } | ||||
3455 | |||||
3456 | static RecordDecl * | ||||
3457 | createPrivatesRecordDecl(CodeGenModule &CGM, ArrayRef<PrivateDataTy> Privates) { | ||||
3458 | if (!Privates.empty()) { | ||||
3459 | ASTContext &C = CGM.getContext(); | ||||
3460 | // Build struct .kmp_privates_t. { | ||||
3461 | // /* private vars */ | ||||
3462 | // }; | ||||
3463 | RecordDecl *RD = C.buildImplicitRecord(".kmp_privates.t"); | ||||
3464 | RD->startDefinition(); | ||||
3465 | for (const auto &Pair : Privates) { | ||||
3466 | const VarDecl *VD = Pair.second.Original; | ||||
3467 | QualType Type = VD->getType().getNonReferenceType(); | ||||
3468 | // If the private variable is a local variable with lvalue ref type, | ||||
3469 | // allocate the pointer instead of the pointee type. | ||||
3470 | if (Pair.second.isLocalPrivate()) { | ||||
3471 | if (VD->getType()->isLValueReferenceType()) | ||||
3472 | Type = C.getPointerType(Type); | ||||
3473 | if (isAllocatableDecl(VD)) | ||||
3474 | Type = C.getPointerType(Type); | ||||
3475 | } | ||||
3476 | FieldDecl *FD = addFieldToRecordDecl(C, RD, Type); | ||||
3477 | if (VD->hasAttrs()) { | ||||
3478 | for (specific_attr_iterator<AlignedAttr> I(VD->getAttrs().begin()), | ||||
3479 | E(VD->getAttrs().end()); | ||||
3480 | I != E; ++I) | ||||
3481 | FD->addAttr(*I); | ||||
3482 | } | ||||
3483 | } | ||||
3484 | RD->completeDefinition(); | ||||
3485 | return RD; | ||||
3486 | } | ||||
3487 | return nullptr; | ||||
3488 | } | ||||
3489 | |||||
3490 | static RecordDecl * | ||||
3491 | createKmpTaskTRecordDecl(CodeGenModule &CGM, OpenMPDirectiveKind Kind, | ||||
3492 | QualType KmpInt32Ty, | ||||
3493 | QualType KmpRoutineEntryPointerQTy) { | ||||
3494 | ASTContext &C = CGM.getContext(); | ||||
3495 | // Build struct kmp_task_t { | ||||
3496 | // void * shareds; | ||||
3497 | // kmp_routine_entry_t routine; | ||||
3498 | // kmp_int32 part_id; | ||||
3499 | // kmp_cmplrdata_t data1; | ||||
3500 | // kmp_cmplrdata_t data2; | ||||
3501 | // For taskloops additional fields: | ||||
3502 | // kmp_uint64 lb; | ||||
3503 | // kmp_uint64 ub; | ||||
3504 | // kmp_int64 st; | ||||
3505 | // kmp_int32 liter; | ||||
3506 | // void * reductions; | ||||
3507 | // }; | ||||
3508 | RecordDecl *UD = C.buildImplicitRecord("kmp_cmplrdata_t", TTK_Union); | ||||
3509 | UD->startDefinition(); | ||||
3510 | addFieldToRecordDecl(C, UD, KmpInt32Ty); | ||||
3511 | addFieldToRecordDecl(C, UD, KmpRoutineEntryPointerQTy); | ||||
3512 | UD->completeDefinition(); | ||||
3513 | QualType KmpCmplrdataTy = C.getRecordType(UD); | ||||
3514 | RecordDecl *RD = C.buildImplicitRecord("kmp_task_t"); | ||||
3515 | RD->startDefinition(); | ||||
3516 | addFieldToRecordDecl(C, RD, C.VoidPtrTy); | ||||
3517 | addFieldToRecordDecl(C, RD, KmpRoutineEntryPointerQTy); | ||||
3518 | addFieldToRecordDecl(C, RD, KmpInt32Ty); | ||||
3519 | addFieldToRecordDecl(C, RD, KmpCmplrdataTy); | ||||
3520 | addFieldToRecordDecl(C, RD, KmpCmplrdataTy); | ||||
3521 | if (isOpenMPTaskLoopDirective(Kind)) { | ||||
3522 | QualType KmpUInt64Ty = | ||||
3523 | CGM.getContext().getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/0); | ||||
3524 | QualType KmpInt64Ty = | ||||
3525 | CGM.getContext().getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/1); | ||||
3526 | addFieldToRecordDecl(C, RD, KmpUInt64Ty); | ||||
3527 | addFieldToRecordDecl(C, RD, KmpUInt64Ty); | ||||
3528 | addFieldToRecordDecl(C, RD, KmpInt64Ty); | ||||
3529 | addFieldToRecordDecl(C, RD, KmpInt32Ty); | ||||
3530 | addFieldToRecordDecl(C, RD, C.VoidPtrTy); | ||||
3531 | } | ||||
3532 | RD->completeDefinition(); | ||||
3533 | return RD; | ||||
3534 | } | ||||
3535 | |||||
3536 | static RecordDecl * | ||||
3537 | createKmpTaskTWithPrivatesRecordDecl(CodeGenModule &CGM, QualType KmpTaskTQTy, | ||||
3538 | ArrayRef<PrivateDataTy> Privates) { | ||||
3539 | ASTContext &C = CGM.getContext(); | ||||
3540 | // Build struct kmp_task_t_with_privates { | ||||
3541 | // kmp_task_t task_data; | ||||
3542 | // .kmp_privates_t. privates; | ||||
3543 | // }; | ||||
3544 | RecordDecl *RD = C.buildImplicitRecord("kmp_task_t_with_privates"); | ||||
3545 | RD->startDefinition(); | ||||
3546 | addFieldToRecordDecl(C, RD, KmpTaskTQTy); | ||||
3547 | if (const RecordDecl *PrivateRD = createPrivatesRecordDecl(CGM, Privates)) | ||||
3548 | addFieldToRecordDecl(C, RD, C.getRecordType(PrivateRD)); | ||||
3549 | RD->completeDefinition(); | ||||
3550 | return RD; | ||||
3551 | } | ||||
3552 | |||||
3553 | /// Emit a proxy function which accepts kmp_task_t as the second | ||||
3554 | /// argument. | ||||
3555 | /// \code | ||||
3556 | /// kmp_int32 .omp_task_entry.(kmp_int32 gtid, kmp_task_t *tt) { | ||||
3557 | /// TaskFunction(gtid, tt->part_id, &tt->privates, task_privates_map, tt, | ||||
3558 | /// For taskloops: | ||||
3559 | /// tt->task_data.lb, tt->task_data.ub, tt->task_data.st, tt->task_data.liter, | ||||
3560 | /// tt->reductions, tt->shareds); | ||||
3561 | /// return 0; | ||||
3562 | /// } | ||||
3563 | /// \endcode | ||||
3564 | static llvm::Function * | ||||
3565 | emitProxyTaskFunction(CodeGenModule &CGM, SourceLocation Loc, | ||||
3566 | OpenMPDirectiveKind Kind, QualType KmpInt32Ty, | ||||
3567 | QualType KmpTaskTWithPrivatesPtrQTy, | ||||
3568 | QualType KmpTaskTWithPrivatesQTy, QualType KmpTaskTQTy, | ||||
3569 | QualType SharedsPtrTy, llvm::Function *TaskFunction, | ||||
3570 | llvm::Value *TaskPrivatesMap) { | ||||
3571 | ASTContext &C = CGM.getContext(); | ||||
3572 | FunctionArgList Args; | ||||
3573 | ImplicitParamDecl GtidArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, KmpInt32Ty, | ||||
3574 | ImplicitParamDecl::Other); | ||||
3575 | ImplicitParamDecl TaskTypeArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, | ||||
3576 | KmpTaskTWithPrivatesPtrQTy.withRestrict(), | ||||
3577 | ImplicitParamDecl::Other); | ||||
3578 | Args.push_back(&GtidArg); | ||||
3579 | Args.push_back(&TaskTypeArg); | ||||
3580 | const auto &TaskEntryFnInfo = | ||||
3581 | CGM.getTypes().arrangeBuiltinFunctionDeclaration(KmpInt32Ty, Args); | ||||
3582 | llvm::FunctionType *TaskEntryTy = | ||||
3583 | CGM.getTypes().GetFunctionType(TaskEntryFnInfo); | ||||
3584 | std::string Name = CGM.getOpenMPRuntime().getName({"omp_task_entry", ""}); | ||||
3585 | auto *TaskEntry = llvm::Function::Create( | ||||
3586 | TaskEntryTy, llvm::GlobalValue::InternalLinkage, Name, &CGM.getModule()); | ||||
3587 | CGM.SetInternalFunctionAttributes(GlobalDecl(), TaskEntry, TaskEntryFnInfo); | ||||
3588 | TaskEntry->setDoesNotRecurse(); | ||||
3589 | CodeGenFunction CGF(CGM); | ||||
3590 | CGF.StartFunction(GlobalDecl(), KmpInt32Ty, TaskEntry, TaskEntryFnInfo, Args, | ||||
3591 | Loc, Loc); | ||||
3592 | |||||
3593 | // TaskFunction(gtid, tt->task_data.part_id, &tt->privates, task_privates_map, | ||||
3594 | // tt, | ||||
3595 | // For taskloops: | ||||
3596 | // tt->task_data.lb, tt->task_data.ub, tt->task_data.st, tt->task_data.liter, | ||||
3597 | // tt->task_data.shareds); | ||||
3598 | llvm::Value *GtidParam = CGF.EmitLoadOfScalar( | ||||
3599 | CGF.GetAddrOfLocalVar(&GtidArg), /*Volatile=*/false, KmpInt32Ty, Loc); | ||||
3600 | LValue TDBase = CGF.EmitLoadOfPointerLValue( | ||||
3601 | CGF.GetAddrOfLocalVar(&TaskTypeArg), | ||||
3602 | KmpTaskTWithPrivatesPtrQTy->castAs<PointerType>()); | ||||
3603 | const auto *KmpTaskTWithPrivatesQTyRD = | ||||
3604 | cast<RecordDecl>(KmpTaskTWithPrivatesQTy->getAsTagDecl()); | ||||
3605 | LValue Base = | ||||
3606 | CGF.EmitLValueForField(TDBase, *KmpTaskTWithPrivatesQTyRD->field_begin()); | ||||
3607 | const auto *KmpTaskTQTyRD = cast<RecordDecl>(KmpTaskTQTy->getAsTagDecl()); | ||||
3608 | auto PartIdFI = std::next(KmpTaskTQTyRD->field_begin(), KmpTaskTPartId); | ||||
3609 | LValue PartIdLVal = CGF.EmitLValueForField(Base, *PartIdFI); | ||||
3610 | llvm::Value *PartidParam = PartIdLVal.getPointer(CGF); | ||||
3611 | |||||
3612 | auto SharedsFI = std::next(KmpTaskTQTyRD->field_begin(), KmpTaskTShareds); | ||||
3613 | LValue SharedsLVal = CGF.EmitLValueForField(Base, *SharedsFI); | ||||
3614 | llvm::Value *SharedsParam = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
3615 | CGF.EmitLoadOfScalar(SharedsLVal, Loc), | ||||
3616 | CGF.ConvertTypeForMem(SharedsPtrTy)); | ||||
3617 | |||||
3618 | auto PrivatesFI = std::next(KmpTaskTWithPrivatesQTyRD->field_begin(), 1); | ||||
3619 | llvm::Value *PrivatesParam; | ||||
3620 | if (PrivatesFI != KmpTaskTWithPrivatesQTyRD->field_end()) { | ||||
3621 | LValue PrivatesLVal = CGF.EmitLValueForField(TDBase, *PrivatesFI); | ||||
3622 | PrivatesParam = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
3623 | PrivatesLVal.getPointer(CGF), CGF.VoidPtrTy); | ||||
3624 | } else { | ||||
3625 | PrivatesParam = llvm::ConstantPointerNull::get(CGF.VoidPtrTy); | ||||
3626 | } | ||||
3627 | |||||
3628 | llvm::Value *CommonArgs[] = {GtidParam, PartidParam, PrivatesParam, | ||||
3629 | TaskPrivatesMap, | ||||
3630 | CGF.Builder | ||||
3631 | .CreatePointerBitCastOrAddrSpaceCast( | ||||
3632 | TDBase.getAddress(CGF), CGF.VoidPtrTy) | ||||
3633 | .getPointer()}; | ||||
3634 | SmallVector<llvm::Value *, 16> CallArgs(std::begin(CommonArgs), | ||||
3635 | std::end(CommonArgs)); | ||||
3636 | if (isOpenMPTaskLoopDirective(Kind)) { | ||||
3637 | auto LBFI = std::next(KmpTaskTQTyRD->field_begin(), KmpTaskTLowerBound); | ||||
3638 | LValue LBLVal = CGF.EmitLValueForField(Base, *LBFI); | ||||
3639 | llvm::Value *LBParam = CGF.EmitLoadOfScalar(LBLVal, Loc); | ||||
3640 | auto UBFI = std::next(KmpTaskTQTyRD->field_begin(), KmpTaskTUpperBound); | ||||
3641 | LValue UBLVal = CGF.EmitLValueForField(Base, *UBFI); | ||||
3642 | llvm::Value *UBParam = CGF.EmitLoadOfScalar(UBLVal, Loc); | ||||
3643 | auto StFI = std::next(KmpTaskTQTyRD->field_begin(), KmpTaskTStride); | ||||
3644 | LValue StLVal = CGF.EmitLValueForField(Base, *StFI); | ||||
3645 | llvm::Value *StParam = CGF.EmitLoadOfScalar(StLVal, Loc); | ||||
3646 | auto LIFI = std::next(KmpTaskTQTyRD->field_begin(), KmpTaskTLastIter); | ||||
3647 | LValue LILVal = CGF.EmitLValueForField(Base, *LIFI); | ||||
3648 | llvm::Value *LIParam = CGF.EmitLoadOfScalar(LILVal, Loc); | ||||
3649 | auto RFI = std::next(KmpTaskTQTyRD->field_begin(), KmpTaskTReductions); | ||||
3650 | LValue RLVal = CGF.EmitLValueForField(Base, *RFI); | ||||
3651 | llvm::Value *RParam = CGF.EmitLoadOfScalar(RLVal, Loc); | ||||
3652 | CallArgs.push_back(LBParam); | ||||
3653 | CallArgs.push_back(UBParam); | ||||
3654 | CallArgs.push_back(StParam); | ||||
3655 | CallArgs.push_back(LIParam); | ||||
3656 | CallArgs.push_back(RParam); | ||||
3657 | } | ||||
3658 | CallArgs.push_back(SharedsParam); | ||||
3659 | |||||
3660 | CGM.getOpenMPRuntime().emitOutlinedFunctionCall(CGF, Loc, TaskFunction, | ||||
3661 | CallArgs); | ||||
3662 | CGF.EmitStoreThroughLValue(RValue::get(CGF.Builder.getInt32(/*C=*/0)), | ||||
3663 | CGF.MakeAddrLValue(CGF.ReturnValue, KmpInt32Ty)); | ||||
3664 | CGF.FinishFunction(); | ||||
3665 | return TaskEntry; | ||||
3666 | } | ||||
3667 | |||||
3668 | static llvm::Value *emitDestructorsFunction(CodeGenModule &CGM, | ||||
3669 | SourceLocation Loc, | ||||
3670 | QualType KmpInt32Ty, | ||||
3671 | QualType KmpTaskTWithPrivatesPtrQTy, | ||||
3672 | QualType KmpTaskTWithPrivatesQTy) { | ||||
3673 | ASTContext &C = CGM.getContext(); | ||||
3674 | FunctionArgList Args; | ||||
3675 | ImplicitParamDecl GtidArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, KmpInt32Ty, | ||||
3676 | ImplicitParamDecl::Other); | ||||
3677 | ImplicitParamDecl TaskTypeArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, | ||||
3678 | KmpTaskTWithPrivatesPtrQTy.withRestrict(), | ||||
3679 | ImplicitParamDecl::Other); | ||||
3680 | Args.push_back(&GtidArg); | ||||
3681 | Args.push_back(&TaskTypeArg); | ||||
3682 | const auto &DestructorFnInfo = | ||||
3683 | CGM.getTypes().arrangeBuiltinFunctionDeclaration(KmpInt32Ty, Args); | ||||
3684 | llvm::FunctionType *DestructorFnTy = | ||||
3685 | CGM.getTypes().GetFunctionType(DestructorFnInfo); | ||||
3686 | std::string Name = | ||||
3687 | CGM.getOpenMPRuntime().getName({"omp_task_destructor", ""}); | ||||
3688 | auto *DestructorFn = | ||||
3689 | llvm::Function::Create(DestructorFnTy, llvm::GlobalValue::InternalLinkage, | ||||
3690 | Name, &CGM.getModule()); | ||||
3691 | CGM.SetInternalFunctionAttributes(GlobalDecl(), DestructorFn, | ||||
3692 | DestructorFnInfo); | ||||
3693 | DestructorFn->setDoesNotRecurse(); | ||||
3694 | CodeGenFunction CGF(CGM); | ||||
3695 | CGF.StartFunction(GlobalDecl(), KmpInt32Ty, DestructorFn, DestructorFnInfo, | ||||
3696 | Args, Loc, Loc); | ||||
3697 | |||||
3698 | LValue Base = CGF.EmitLoadOfPointerLValue( | ||||
3699 | CGF.GetAddrOfLocalVar(&TaskTypeArg), | ||||
3700 | KmpTaskTWithPrivatesPtrQTy->castAs<PointerType>()); | ||||
3701 | const auto *KmpTaskTWithPrivatesQTyRD = | ||||
3702 | cast<RecordDecl>(KmpTaskTWithPrivatesQTy->getAsTagDecl()); | ||||
3703 | auto FI = std::next(KmpTaskTWithPrivatesQTyRD->field_begin()); | ||||
3704 | Base = CGF.EmitLValueForField(Base, *FI); | ||||
3705 | for (const auto *Field : | ||||
3706 | cast<RecordDecl>(FI->getType()->getAsTagDecl())->fields()) { | ||||
3707 | if (QualType::DestructionKind DtorKind = | ||||
3708 | Field->getType().isDestructedType()) { | ||||
3709 | LValue FieldLValue = CGF.EmitLValueForField(Base, Field); | ||||
3710 | CGF.pushDestroy(DtorKind, FieldLValue.getAddress(CGF), Field->getType()); | ||||
3711 | } | ||||
3712 | } | ||||
3713 | CGF.FinishFunction(); | ||||
3714 | return DestructorFn; | ||||
3715 | } | ||||
3716 | |||||
3717 | /// Emit a privates mapping function for correct handling of private and | ||||
3718 | /// firstprivate variables. | ||||
3719 | /// \code | ||||
3720 | /// void .omp_task_privates_map.(const .privates. *noalias privs, <ty1> | ||||
3721 | /// **noalias priv1,..., <tyn> **noalias privn) { | ||||
3722 | /// *priv1 = &.privates.priv1; | ||||
3723 | /// ...; | ||||
3724 | /// *privn = &.privates.privn; | ||||
3725 | /// } | ||||
3726 | /// \endcode | ||||
3727 | static llvm::Value * | ||||
3728 | emitTaskPrivateMappingFunction(CodeGenModule &CGM, SourceLocation Loc, | ||||
3729 | const OMPTaskDataTy &Data, QualType PrivatesQTy, | ||||
3730 | ArrayRef<PrivateDataTy> Privates) { | ||||
3731 | ASTContext &C = CGM.getContext(); | ||||
3732 | FunctionArgList Args; | ||||
3733 | ImplicitParamDecl TaskPrivatesArg( | ||||
3734 | C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, | ||||
3735 | C.getPointerType(PrivatesQTy).withConst().withRestrict(), | ||||
3736 | ImplicitParamDecl::Other); | ||||
3737 | Args.push_back(&TaskPrivatesArg); | ||||
3738 | llvm::DenseMap<CanonicalDeclPtr<const VarDecl>, unsigned> PrivateVarsPos; | ||||
3739 | unsigned Counter = 1; | ||||
3740 | for (const Expr *E : Data.PrivateVars) { | ||||
3741 | Args.push_back(ImplicitParamDecl::Create( | ||||
3742 | C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, | ||||
3743 | C.getPointerType(C.getPointerType(E->getType())) | ||||
3744 | .withConst() | ||||
3745 | .withRestrict(), | ||||
3746 | ImplicitParamDecl::Other)); | ||||
3747 | const auto *VD = cast<VarDecl>(cast<DeclRefExpr>(E)->getDecl()); | ||||
3748 | PrivateVarsPos[VD] = Counter; | ||||
3749 | ++Counter; | ||||
3750 | } | ||||
3751 | for (const Expr *E : Data.FirstprivateVars) { | ||||
3752 | Args.push_back(ImplicitParamDecl::Create( | ||||
3753 | C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, | ||||
3754 | C.getPointerType(C.getPointerType(E->getType())) | ||||
3755 | .withConst() | ||||
3756 | .withRestrict(), | ||||
3757 | ImplicitParamDecl::Other)); | ||||
3758 | const auto *VD = cast<VarDecl>(cast<DeclRefExpr>(E)->getDecl()); | ||||
3759 | PrivateVarsPos[VD] = Counter; | ||||
3760 | ++Counter; | ||||
3761 | } | ||||
3762 | for (const Expr *E : Data.LastprivateVars) { | ||||
3763 | Args.push_back(ImplicitParamDecl::Create( | ||||
3764 | C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, | ||||
3765 | C.getPointerType(C.getPointerType(E->getType())) | ||||
3766 | .withConst() | ||||
3767 | .withRestrict(), | ||||
3768 | ImplicitParamDecl::Other)); | ||||
3769 | const auto *VD = cast<VarDecl>(cast<DeclRefExpr>(E)->getDecl()); | ||||
3770 | PrivateVarsPos[VD] = Counter; | ||||
3771 | ++Counter; | ||||
3772 | } | ||||
3773 | for (const VarDecl *VD : Data.PrivateLocals) { | ||||
3774 | QualType Ty = VD->getType().getNonReferenceType(); | ||||
3775 | if (VD->getType()->isLValueReferenceType()) | ||||
3776 | Ty = C.getPointerType(Ty); | ||||
3777 | if (isAllocatableDecl(VD)) | ||||
3778 | Ty = C.getPointerType(Ty); | ||||
3779 | Args.push_back(ImplicitParamDecl::Create( | ||||
3780 | C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, | ||||
3781 | C.getPointerType(C.getPointerType(Ty)).withConst().withRestrict(), | ||||
3782 | ImplicitParamDecl::Other)); | ||||
3783 | PrivateVarsPos[VD] = Counter; | ||||
3784 | ++Counter; | ||||
3785 | } | ||||
3786 | const auto &TaskPrivatesMapFnInfo = | ||||
3787 | CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, Args); | ||||
3788 | llvm::FunctionType *TaskPrivatesMapTy = | ||||
3789 | CGM.getTypes().GetFunctionType(TaskPrivatesMapFnInfo); | ||||
3790 | std::string Name = | ||||
3791 | CGM.getOpenMPRuntime().getName({"omp_task_privates_map", ""}); | ||||
3792 | auto *TaskPrivatesMap = llvm::Function::Create( | ||||
3793 | TaskPrivatesMapTy, llvm::GlobalValue::InternalLinkage, Name, | ||||
3794 | &CGM.getModule()); | ||||
3795 | CGM.SetInternalFunctionAttributes(GlobalDecl(), TaskPrivatesMap, | ||||
3796 | TaskPrivatesMapFnInfo); | ||||
3797 | if (CGM.getLangOpts().Optimize) { | ||||
3798 | TaskPrivatesMap->removeFnAttr(llvm::Attribute::NoInline); | ||||
3799 | TaskPrivatesMap->removeFnAttr(llvm::Attribute::OptimizeNone); | ||||
3800 | TaskPrivatesMap->addFnAttr(llvm::Attribute::AlwaysInline); | ||||
3801 | } | ||||
3802 | CodeGenFunction CGF(CGM); | ||||
3803 | CGF.StartFunction(GlobalDecl(), C.VoidTy, TaskPrivatesMap, | ||||
3804 | TaskPrivatesMapFnInfo, Args, Loc, Loc); | ||||
3805 | |||||
3806 | // *privi = &.privates.privi; | ||||
3807 | LValue Base = CGF.EmitLoadOfPointerLValue( | ||||
3808 | CGF.GetAddrOfLocalVar(&TaskPrivatesArg), | ||||
3809 | TaskPrivatesArg.getType()->castAs<PointerType>()); | ||||
3810 | const auto *PrivatesQTyRD = cast<RecordDecl>(PrivatesQTy->getAsTagDecl()); | ||||
3811 | Counter = 0; | ||||
3812 | for (const FieldDecl *Field : PrivatesQTyRD->fields()) { | ||||
3813 | LValue FieldLVal = CGF.EmitLValueForField(Base, Field); | ||||
3814 | const VarDecl *VD = Args[PrivateVarsPos[Privates[Counter].second.Original]]; | ||||
3815 | LValue RefLVal = | ||||
3816 | CGF.MakeAddrLValue(CGF.GetAddrOfLocalVar(VD), VD->getType()); | ||||
3817 | LValue RefLoadLVal = CGF.EmitLoadOfPointerLValue( | ||||
3818 | RefLVal.getAddress(CGF), RefLVal.getType()->castAs<PointerType>()); | ||||
3819 | CGF.EmitStoreOfScalar(FieldLVal.getPointer(CGF), RefLoadLVal); | ||||
3820 | ++Counter; | ||||
3821 | } | ||||
3822 | CGF.FinishFunction(); | ||||
3823 | return TaskPrivatesMap; | ||||
3824 | } | ||||
3825 | |||||
3826 | /// Emit initialization for private variables in task-based directives. | ||||
3827 | static void emitPrivatesInit(CodeGenFunction &CGF, | ||||
3828 | const OMPExecutableDirective &D, | ||||
3829 | Address KmpTaskSharedsPtr, LValue TDBase, | ||||
3830 | const RecordDecl *KmpTaskTWithPrivatesQTyRD, | ||||
3831 | QualType SharedsTy, QualType SharedsPtrTy, | ||||
3832 | const OMPTaskDataTy &Data, | ||||
3833 | ArrayRef<PrivateDataTy> Privates, bool ForDup) { | ||||
3834 | ASTContext &C = CGF.getContext(); | ||||
3835 | auto FI = std::next(KmpTaskTWithPrivatesQTyRD->field_begin()); | ||||
3836 | LValue PrivatesBase = CGF.EmitLValueForField(TDBase, *FI); | ||||
3837 | OpenMPDirectiveKind Kind = isOpenMPTaskLoopDirective(D.getDirectiveKind()) | ||||
3838 | ? OMPD_taskloop | ||||
3839 | : OMPD_task; | ||||
3840 | const CapturedStmt &CS = *D.getCapturedStmt(Kind); | ||||
3841 | CodeGenFunction::CGCapturedStmtInfo CapturesInfo(CS); | ||||
3842 | LValue SrcBase; | ||||
3843 | bool IsTargetTask = | ||||
3844 | isOpenMPTargetDataManagementDirective(D.getDirectiveKind()) || | ||||
3845 | isOpenMPTargetExecutionDirective(D.getDirectiveKind()); | ||||
3846 | // For target-based directives skip 4 firstprivate arrays BasePointersArray, | ||||
3847 | // PointersArray, SizesArray, and MappersArray. The original variables for | ||||
3848 | // these arrays are not captured and we get their addresses explicitly. | ||||
3849 | if ((!IsTargetTask && !Data.FirstprivateVars.empty() && ForDup) || | ||||
3850 | (IsTargetTask && KmpTaskSharedsPtr.isValid())) { | ||||
3851 | SrcBase = CGF.MakeAddrLValue( | ||||
3852 | CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
3853 | KmpTaskSharedsPtr, CGF.ConvertTypeForMem(SharedsPtrTy)), | ||||
3854 | SharedsTy); | ||||
3855 | } | ||||
3856 | FI = cast<RecordDecl>(FI->getType()->getAsTagDecl())->field_begin(); | ||||
3857 | for (const PrivateDataTy &Pair : Privates) { | ||||
3858 | // Do not initialize private locals. | ||||
3859 | if (Pair.second.isLocalPrivate()) { | ||||
3860 | ++FI; | ||||
3861 | continue; | ||||
3862 | } | ||||
3863 | const VarDecl *VD = Pair.second.PrivateCopy; | ||||
3864 | const Expr *Init = VD->getAnyInitializer(); | ||||
3865 | if (Init && (!ForDup || (isa<CXXConstructExpr>(Init) && | ||||
3866 | !CGF.isTrivialInitializer(Init)))) { | ||||
3867 | LValue PrivateLValue = CGF.EmitLValueForField(PrivatesBase, *FI); | ||||
3868 | if (const VarDecl *Elem = Pair.second.PrivateElemInit) { | ||||
3869 | const VarDecl *OriginalVD = Pair.second.Original; | ||||
3870 | // Check if the variable is the target-based BasePointersArray, | ||||
3871 | // PointersArray, SizesArray, or MappersArray. | ||||
3872 | LValue SharedRefLValue; | ||||
3873 | QualType Type = PrivateLValue.getType(); | ||||
3874 | const FieldDecl *SharedField = CapturesInfo.lookup(OriginalVD); | ||||
3875 | if (IsTargetTask && !SharedField) { | ||||
3876 | assert(isa<ImplicitParamDecl>(OriginalVD) &&((void)0) | ||||
3877 | isa<CapturedDecl>(OriginalVD->getDeclContext()) &&((void)0) | ||||
3878 | cast<CapturedDecl>(OriginalVD->getDeclContext())((void)0) | ||||
3879 | ->getNumParams() == 0 &&((void)0) | ||||
3880 | isa<TranslationUnitDecl>(((void)0) | ||||
3881 | cast<CapturedDecl>(OriginalVD->getDeclContext())((void)0) | ||||
3882 | ->getDeclContext()) &&((void)0) | ||||
3883 | "Expected artificial target data variable.")((void)0); | ||||
3884 | SharedRefLValue = | ||||
3885 | CGF.MakeAddrLValue(CGF.GetAddrOfLocalVar(OriginalVD), Type); | ||||
3886 | } else if (ForDup) { | ||||
3887 | SharedRefLValue = CGF.EmitLValueForField(SrcBase, SharedField); | ||||
3888 | SharedRefLValue = CGF.MakeAddrLValue( | ||||
3889 | Address(SharedRefLValue.getPointer(CGF), | ||||
3890 | C.getDeclAlign(OriginalVD)), | ||||
3891 | SharedRefLValue.getType(), LValueBaseInfo(AlignmentSource::Decl), | ||||
3892 | SharedRefLValue.getTBAAInfo()); | ||||
3893 | } else if (CGF.LambdaCaptureFields.count( | ||||
3894 | Pair.second.Original->getCanonicalDecl()) > 0 || | ||||
3895 | dyn_cast_or_null<BlockDecl>(CGF.CurCodeDecl)) { | ||||
3896 | SharedRefLValue = CGF.EmitLValue(Pair.second.OriginalRef); | ||||
3897 | } else { | ||||
3898 | // Processing for implicitly captured variables. | ||||
3899 | InlinedOpenMPRegionRAII Region( | ||||
3900 | CGF, [](CodeGenFunction &, PrePostActionTy &) {}, OMPD_unknown, | ||||
3901 | /*HasCancel=*/false, /*NoInheritance=*/true); | ||||
3902 | SharedRefLValue = CGF.EmitLValue(Pair.second.OriginalRef); | ||||
3903 | } | ||||
3904 | if (Type->isArrayType()) { | ||||
3905 | // Initialize firstprivate array. | ||||
3906 | if (!isa<CXXConstructExpr>(Init) || CGF.isTrivialInitializer(Init)) { | ||||
3907 | // Perform simple memcpy. | ||||
3908 | CGF.EmitAggregateAssign(PrivateLValue, SharedRefLValue, Type); | ||||
3909 | } else { | ||||
3910 | // Initialize firstprivate array using element-by-element | ||||
3911 | // initialization. | ||||
3912 | CGF.EmitOMPAggregateAssign( | ||||
3913 | PrivateLValue.getAddress(CGF), SharedRefLValue.getAddress(CGF), | ||||
3914 | Type, | ||||
3915 | [&CGF, Elem, Init, &CapturesInfo](Address DestElement, | ||||
3916 | Address SrcElement) { | ||||
3917 | // Clean up any temporaries needed by the initialization. | ||||
3918 | CodeGenFunction::OMPPrivateScope InitScope(CGF); | ||||
3919 | InitScope.addPrivate( | ||||
3920 | Elem, [SrcElement]() -> Address { return SrcElement; }); | ||||
3921 | (void)InitScope.Privatize(); | ||||
3922 | // Emit initialization for single element. | ||||
3923 | CodeGenFunction::CGCapturedStmtRAII CapInfoRAII( | ||||
3924 | CGF, &CapturesInfo); | ||||
3925 | CGF.EmitAnyExprToMem(Init, DestElement, | ||||
3926 | Init->getType().getQualifiers(), | ||||
3927 | /*IsInitializer=*/false); | ||||
3928 | }); | ||||
3929 | } | ||||
3930 | } else { | ||||
3931 | CodeGenFunction::OMPPrivateScope InitScope(CGF); | ||||
3932 | InitScope.addPrivate(Elem, [SharedRefLValue, &CGF]() -> Address { | ||||
3933 | return SharedRefLValue.getAddress(CGF); | ||||
3934 | }); | ||||
3935 | (void)InitScope.Privatize(); | ||||
3936 | CodeGenFunction::CGCapturedStmtRAII CapInfoRAII(CGF, &CapturesInfo); | ||||
3937 | CGF.EmitExprAsInit(Init, VD, PrivateLValue, | ||||
3938 | /*capturedByInit=*/false); | ||||
3939 | } | ||||
3940 | } else { | ||||
3941 | CGF.EmitExprAsInit(Init, VD, PrivateLValue, /*capturedByInit=*/false); | ||||
3942 | } | ||||
3943 | } | ||||
3944 | ++FI; | ||||
3945 | } | ||||
3946 | } | ||||
3947 | |||||
3948 | /// Check if duplication function is required for taskloops. | ||||
3949 | static bool checkInitIsRequired(CodeGenFunction &CGF, | ||||
3950 | ArrayRef<PrivateDataTy> Privates) { | ||||
3951 | bool InitRequired = false; | ||||
3952 | for (const PrivateDataTy &Pair : Privates) { | ||||
3953 | if (Pair.second.isLocalPrivate()) | ||||
3954 | continue; | ||||
3955 | const VarDecl *VD = Pair.second.PrivateCopy; | ||||
3956 | const Expr *Init = VD->getAnyInitializer(); | ||||
3957 | InitRequired = InitRequired || (Init && isa<CXXConstructExpr>(Init) && | ||||
3958 | !CGF.isTrivialInitializer(Init)); | ||||
3959 | if (InitRequired) | ||||
3960 | break; | ||||
3961 | } | ||||
3962 | return InitRequired; | ||||
3963 | } | ||||
3964 | |||||
3965 | |||||
3966 | /// Emit task_dup function (for initialization of | ||||
3967 | /// private/firstprivate/lastprivate vars and last_iter flag) | ||||
3968 | /// \code | ||||
3969 | /// void __task_dup_entry(kmp_task_t *task_dst, const kmp_task_t *task_src, int | ||||
3970 | /// lastpriv) { | ||||
3971 | /// // setup lastprivate flag | ||||
3972 | /// task_dst->last = lastpriv; | ||||
3973 | /// // could be constructor calls here... | ||||
3974 | /// } | ||||
3975 | /// \endcode | ||||
3976 | static llvm::Value * | ||||
3977 | emitTaskDupFunction(CodeGenModule &CGM, SourceLocation Loc, | ||||
3978 | const OMPExecutableDirective &D, | ||||
3979 | QualType KmpTaskTWithPrivatesPtrQTy, | ||||
3980 | const RecordDecl *KmpTaskTWithPrivatesQTyRD, | ||||
3981 | const RecordDecl *KmpTaskTQTyRD, QualType SharedsTy, | ||||
3982 | QualType SharedsPtrTy, const OMPTaskDataTy &Data, | ||||
3983 | ArrayRef<PrivateDataTy> Privates, bool WithLastIter) { | ||||
3984 | ASTContext &C = CGM.getContext(); | ||||
3985 | FunctionArgList Args; | ||||
3986 | ImplicitParamDecl DstArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, | ||||
3987 | KmpTaskTWithPrivatesPtrQTy, | ||||
3988 | ImplicitParamDecl::Other); | ||||
3989 | ImplicitParamDecl SrcArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, | ||||
3990 | KmpTaskTWithPrivatesPtrQTy, | ||||
3991 | ImplicitParamDecl::Other); | ||||
3992 | ImplicitParamDecl LastprivArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, C.IntTy, | ||||
3993 | ImplicitParamDecl::Other); | ||||
3994 | Args.push_back(&DstArg); | ||||
3995 | Args.push_back(&SrcArg); | ||||
3996 | Args.push_back(&LastprivArg); | ||||
3997 | const auto &TaskDupFnInfo = | ||||
3998 | CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, Args); | ||||
3999 | llvm::FunctionType *TaskDupTy = CGM.getTypes().GetFunctionType(TaskDupFnInfo); | ||||
4000 | std::string Name = CGM.getOpenMPRuntime().getName({"omp_task_dup", ""}); | ||||
4001 | auto *TaskDup = llvm::Function::Create( | ||||
4002 | TaskDupTy, llvm::GlobalValue::InternalLinkage, Name, &CGM.getModule()); | ||||
4003 | CGM.SetInternalFunctionAttributes(GlobalDecl(), TaskDup, TaskDupFnInfo); | ||||
4004 | TaskDup->setDoesNotRecurse(); | ||||
4005 | CodeGenFunction CGF(CGM); | ||||
4006 | CGF.StartFunction(GlobalDecl(), C.VoidTy, TaskDup, TaskDupFnInfo, Args, Loc, | ||||
4007 | Loc); | ||||
4008 | |||||
4009 | LValue TDBase = CGF.EmitLoadOfPointerLValue( | ||||
4010 | CGF.GetAddrOfLocalVar(&DstArg), | ||||
4011 | KmpTaskTWithPrivatesPtrQTy->castAs<PointerType>()); | ||||
4012 | // task_dst->liter = lastpriv; | ||||
4013 | if (WithLastIter) { | ||||
4014 | auto LIFI = std::next(KmpTaskTQTyRD->field_begin(), KmpTaskTLastIter); | ||||
4015 | LValue Base = CGF.EmitLValueForField( | ||||
4016 | TDBase, *KmpTaskTWithPrivatesQTyRD->field_begin()); | ||||
4017 | LValue LILVal = CGF.EmitLValueForField(Base, *LIFI); | ||||
4018 | llvm::Value *Lastpriv = CGF.EmitLoadOfScalar( | ||||
4019 | CGF.GetAddrOfLocalVar(&LastprivArg), /*Volatile=*/false, C.IntTy, Loc); | ||||
4020 | CGF.EmitStoreOfScalar(Lastpriv, LILVal); | ||||
4021 | } | ||||
4022 | |||||
4023 | // Emit initial values for private copies (if any). | ||||
4024 | assert(!Privates.empty())((void)0); | ||||
4025 | Address KmpTaskSharedsPtr = Address::invalid(); | ||||
4026 | if (!Data.FirstprivateVars.empty()) { | ||||
4027 | LValue TDBase = CGF.EmitLoadOfPointerLValue( | ||||
4028 | CGF.GetAddrOfLocalVar(&SrcArg), | ||||
4029 | KmpTaskTWithPrivatesPtrQTy->castAs<PointerType>()); | ||||
4030 | LValue Base = CGF.EmitLValueForField( | ||||
4031 | TDBase, *KmpTaskTWithPrivatesQTyRD->field_begin()); | ||||
4032 | KmpTaskSharedsPtr = Address( | ||||
4033 | CGF.EmitLoadOfScalar(CGF.EmitLValueForField( | ||||
4034 | Base, *std::next(KmpTaskTQTyRD->field_begin(), | ||||
4035 | KmpTaskTShareds)), | ||||
4036 | Loc), | ||||
4037 | CGM.getNaturalTypeAlignment(SharedsTy)); | ||||
4038 | } | ||||
4039 | emitPrivatesInit(CGF, D, KmpTaskSharedsPtr, TDBase, KmpTaskTWithPrivatesQTyRD, | ||||
4040 | SharedsTy, SharedsPtrTy, Data, Privates, /*ForDup=*/true); | ||||
4041 | CGF.FinishFunction(); | ||||
4042 | return TaskDup; | ||||
4043 | } | ||||
4044 | |||||
4045 | /// Checks if destructor function is required to be generated. | ||||
4046 | /// \return true if cleanups are required, false otherwise. | ||||
4047 | static bool | ||||
4048 | checkDestructorsRequired(const RecordDecl *KmpTaskTWithPrivatesQTyRD, | ||||
4049 | ArrayRef<PrivateDataTy> Privates) { | ||||
4050 | for (const PrivateDataTy &P : Privates) { | ||||
4051 | if (P.second.isLocalPrivate()) | ||||
4052 | continue; | ||||
4053 | QualType Ty = P.second.Original->getType().getNonReferenceType(); | ||||
4054 | if (Ty.isDestructedType()) | ||||
4055 | return true; | ||||
4056 | } | ||||
4057 | return false; | ||||
4058 | } | ||||
4059 | |||||
4060 | namespace { | ||||
4061 | /// Loop generator for OpenMP iterator expression. | ||||
4062 | class OMPIteratorGeneratorScope final | ||||
4063 | : public CodeGenFunction::OMPPrivateScope { | ||||
4064 | CodeGenFunction &CGF; | ||||
4065 | const OMPIteratorExpr *E = nullptr; | ||||
4066 | SmallVector<CodeGenFunction::JumpDest, 4> ContDests; | ||||
4067 | SmallVector<CodeGenFunction::JumpDest, 4> ExitDests; | ||||
4068 | OMPIteratorGeneratorScope() = delete; | ||||
4069 | OMPIteratorGeneratorScope(OMPIteratorGeneratorScope &) = delete; | ||||
4070 | |||||
4071 | public: | ||||
4072 | OMPIteratorGeneratorScope(CodeGenFunction &CGF, const OMPIteratorExpr *E) | ||||
4073 | : CodeGenFunction::OMPPrivateScope(CGF), CGF(CGF), E(E) { | ||||
4074 | if (!E) | ||||
4075 | return; | ||||
4076 | SmallVector<llvm::Value *, 4> Uppers; | ||||
4077 | for (unsigned I = 0, End = E->numOfIterators(); I < End; ++I) { | ||||
4078 | Uppers.push_back(CGF.EmitScalarExpr(E->getHelper(I).Upper)); | ||||
4079 | const auto *VD = cast<VarDecl>(E->getIteratorDecl(I)); | ||||
4080 | addPrivate(VD, [&CGF, VD]() { | ||||
4081 | return CGF.CreateMemTemp(VD->getType(), VD->getName()); | ||||
4082 | }); | ||||
4083 | const OMPIteratorHelperData &HelperData = E->getHelper(I); | ||||
4084 | addPrivate(HelperData.CounterVD, [&CGF, &HelperData]() { | ||||
4085 | return CGF.CreateMemTemp(HelperData.CounterVD->getType(), | ||||
4086 | "counter.addr"); | ||||
4087 | }); | ||||
4088 | } | ||||
4089 | Privatize(); | ||||
4090 | |||||
4091 | for (unsigned I = 0, End = E->numOfIterators(); I < End; ++I) { | ||||
4092 | const OMPIteratorHelperData &HelperData = E->getHelper(I); | ||||
4093 | LValue CLVal = | ||||
4094 | CGF.MakeAddrLValue(CGF.GetAddrOfLocalVar(HelperData.CounterVD), | ||||
4095 | HelperData.CounterVD->getType()); | ||||
4096 | // Counter = 0; | ||||
4097 | CGF.EmitStoreOfScalar( | ||||
4098 | llvm::ConstantInt::get(CLVal.getAddress(CGF).getElementType(), 0), | ||||
4099 | CLVal); | ||||
4100 | CodeGenFunction::JumpDest &ContDest = | ||||
4101 | ContDests.emplace_back(CGF.getJumpDestInCurrentScope("iter.cont")); | ||||
4102 | CodeGenFunction::JumpDest &ExitDest = | ||||
4103 | ExitDests.emplace_back(CGF.getJumpDestInCurrentScope("iter.exit")); | ||||
4104 | // N = <number-of_iterations>; | ||||
4105 | llvm::Value *N = Uppers[I]; | ||||
4106 | // cont: | ||||
4107 | // if (Counter < N) goto body; else goto exit; | ||||
4108 | CGF.EmitBlock(ContDest.getBlock()); | ||||
4109 | auto *CVal = | ||||
4110 | CGF.EmitLoadOfScalar(CLVal, HelperData.CounterVD->getLocation()); | ||||
4111 | llvm::Value *Cmp = | ||||
4112 | HelperData.CounterVD->getType()->isSignedIntegerOrEnumerationType() | ||||
4113 | ? CGF.Builder.CreateICmpSLT(CVal, N) | ||||
4114 | : CGF.Builder.CreateICmpULT(CVal, N); | ||||
4115 | llvm::BasicBlock *BodyBB = CGF.createBasicBlock("iter.body"); | ||||
4116 | CGF.Builder.CreateCondBr(Cmp, BodyBB, ExitDest.getBlock()); | ||||
4117 | // body: | ||||
4118 | CGF.EmitBlock(BodyBB); | ||||
4119 | // Iteri = Begini + Counter * Stepi; | ||||
4120 | CGF.EmitIgnoredExpr(HelperData.Update); | ||||
4121 | } | ||||
4122 | } | ||||
4123 | ~OMPIteratorGeneratorScope() { | ||||
4124 | if (!E) | ||||
4125 | return; | ||||
4126 | for (unsigned I = E->numOfIterators(); I > 0; --I) { | ||||
4127 | // Counter = Counter + 1; | ||||
4128 | const OMPIteratorHelperData &HelperData = E->getHelper(I - 1); | ||||
4129 | CGF.EmitIgnoredExpr(HelperData.CounterUpdate); | ||||
4130 | // goto cont; | ||||
4131 | CGF.EmitBranchThroughCleanup(ContDests[I - 1]); | ||||
4132 | // exit: | ||||
4133 | CGF.EmitBlock(ExitDests[I - 1].getBlock(), /*IsFinished=*/I == 1); | ||||
4134 | } | ||||
4135 | } | ||||
4136 | }; | ||||
4137 | } // namespace | ||||
4138 | |||||
4139 | static std::pair<llvm::Value *, llvm::Value *> | ||||
4140 | getPointerAndSize(CodeGenFunction &CGF, const Expr *E) { | ||||
4141 | const auto *OASE = dyn_cast<OMPArrayShapingExpr>(E); | ||||
4142 | llvm::Value *Addr; | ||||
4143 | if (OASE) { | ||||
4144 | const Expr *Base = OASE->getBase(); | ||||
4145 | Addr = CGF.EmitScalarExpr(Base); | ||||
4146 | } else { | ||||
4147 | Addr = CGF.EmitLValue(E).getPointer(CGF); | ||||
4148 | } | ||||
4149 | llvm::Value *SizeVal; | ||||
4150 | QualType Ty = E->getType(); | ||||
4151 | if (OASE) { | ||||
4152 | SizeVal = CGF.getTypeSize(OASE->getBase()->getType()->getPointeeType()); | ||||
4153 | for (const Expr *SE : OASE->getDimensions()) { | ||||
4154 | llvm::Value *Sz = CGF.EmitScalarExpr(SE); | ||||
4155 | Sz = CGF.EmitScalarConversion( | ||||
4156 | Sz, SE->getType(), CGF.getContext().getSizeType(), SE->getExprLoc()); | ||||
4157 | SizeVal = CGF.Builder.CreateNUWMul(SizeVal, Sz); | ||||
4158 | } | ||||
4159 | } else if (const auto *ASE = | ||||
4160 | dyn_cast<OMPArraySectionExpr>(E->IgnoreParenImpCasts())) { | ||||
4161 | LValue UpAddrLVal = | ||||
4162 | CGF.EmitOMPArraySectionExpr(ASE, /*IsLowerBound=*/false); | ||||
4163 | Address UpAddrAddress = UpAddrLVal.getAddress(CGF); | ||||
4164 | llvm::Value *UpAddr = CGF.Builder.CreateConstGEP1_32( | ||||
4165 | UpAddrAddress.getElementType(), UpAddrAddress.getPointer(), /*Idx0=*/1); | ||||
4166 | llvm::Value *LowIntPtr = CGF.Builder.CreatePtrToInt(Addr, CGF.SizeTy); | ||||
4167 | llvm::Value *UpIntPtr = CGF.Builder.CreatePtrToInt(UpAddr, CGF.SizeTy); | ||||
4168 | SizeVal = CGF.Builder.CreateNUWSub(UpIntPtr, LowIntPtr); | ||||
4169 | } else { | ||||
4170 | SizeVal = CGF.getTypeSize(Ty); | ||||
4171 | } | ||||
4172 | return std::make_pair(Addr, SizeVal); | ||||
4173 | } | ||||
4174 | |||||
4175 | /// Builds kmp_depend_info, if it is not built yet, and builds flags type. | ||||
4176 | static void getKmpAffinityType(ASTContext &C, QualType &KmpTaskAffinityInfoTy) { | ||||
4177 | QualType FlagsTy = C.getIntTypeForBitwidth(32, /*Signed=*/false); | ||||
4178 | if (KmpTaskAffinityInfoTy.isNull()) { | ||||
4179 | RecordDecl *KmpAffinityInfoRD = | ||||
4180 | C.buildImplicitRecord("kmp_task_affinity_info_t"); | ||||
4181 | KmpAffinityInfoRD->startDefinition(); | ||||
4182 | addFieldToRecordDecl(C, KmpAffinityInfoRD, C.getIntPtrType()); | ||||
4183 | addFieldToRecordDecl(C, KmpAffinityInfoRD, C.getSizeType()); | ||||
4184 | addFieldToRecordDecl(C, KmpAffinityInfoRD, FlagsTy); | ||||
4185 | KmpAffinityInfoRD->completeDefinition(); | ||||
4186 | KmpTaskAffinityInfoTy = C.getRecordType(KmpAffinityInfoRD); | ||||
4187 | } | ||||
4188 | } | ||||
4189 | |||||
4190 | CGOpenMPRuntime::TaskResultTy | ||||
4191 | CGOpenMPRuntime::emitTaskInit(CodeGenFunction &CGF, SourceLocation Loc, | ||||
4192 | const OMPExecutableDirective &D, | ||||
4193 | llvm::Function *TaskFunction, QualType SharedsTy, | ||||
4194 | Address Shareds, const OMPTaskDataTy &Data) { | ||||
4195 | ASTContext &C = CGM.getContext(); | ||||
4196 | llvm::SmallVector<PrivateDataTy, 4> Privates; | ||||
4197 | // Aggregate privates and sort them by the alignment. | ||||
4198 | const auto *I = Data.PrivateCopies.begin(); | ||||
4199 | for (const Expr *E : Data.PrivateVars) { | ||||
4200 | const auto *VD = cast<VarDecl>(cast<DeclRefExpr>(E)->getDecl()); | ||||
4201 | Privates.emplace_back( | ||||
4202 | C.getDeclAlign(VD), | ||||
4203 | PrivateHelpersTy(E, VD, cast<VarDecl>(cast<DeclRefExpr>(*I)->getDecl()), | ||||
4204 | /*PrivateElemInit=*/nullptr)); | ||||
4205 | ++I; | ||||
4206 | } | ||||
4207 | I = Data.FirstprivateCopies.begin(); | ||||
4208 | const auto *IElemInitRef = Data.FirstprivateInits.begin(); | ||||
4209 | for (const Expr *E : Data.FirstprivateVars) { | ||||
4210 | const auto *VD = cast<VarDecl>(cast<DeclRefExpr>(E)->getDecl()); | ||||
4211 | Privates.emplace_back( | ||||
4212 | C.getDeclAlign(VD), | ||||
4213 | PrivateHelpersTy( | ||||
4214 | E, VD, cast<VarDecl>(cast<DeclRefExpr>(*I)->getDecl()), | ||||
4215 | cast<VarDecl>(cast<DeclRefExpr>(*IElemInitRef)->getDecl()))); | ||||
4216 | ++I; | ||||
4217 | ++IElemInitRef; | ||||
4218 | } | ||||
4219 | I = Data.LastprivateCopies.begin(); | ||||
4220 | for (const Expr *E : Data.LastprivateVars) { | ||||
4221 | const auto *VD = cast<VarDecl>(cast<DeclRefExpr>(E)->getDecl()); | ||||
4222 | Privates.emplace_back( | ||||
4223 | C.getDeclAlign(VD), | ||||
4224 | PrivateHelpersTy(E, VD, cast<VarDecl>(cast<DeclRefExpr>(*I)->getDecl()), | ||||
4225 | /*PrivateElemInit=*/nullptr)); | ||||
4226 | ++I; | ||||
4227 | } | ||||
4228 | for (const VarDecl *VD : Data.PrivateLocals) { | ||||
4229 | if (isAllocatableDecl(VD)) | ||||
4230 | Privates.emplace_back(CGM.getPointerAlign(), PrivateHelpersTy(VD)); | ||||
4231 | else | ||||
4232 | Privates.emplace_back(C.getDeclAlign(VD), PrivateHelpersTy(VD)); | ||||
4233 | } | ||||
4234 | llvm::stable_sort(Privates, | ||||
4235 | [](const PrivateDataTy &L, const PrivateDataTy &R) { | ||||
4236 | return L.first > R.first; | ||||
4237 | }); | ||||
4238 | QualType KmpInt32Ty = C.getIntTypeForBitwidth(/*DestWidth=*/32, /*Signed=*/1); | ||||
4239 | // Build type kmp_routine_entry_t (if not built yet). | ||||
4240 | emitKmpRoutineEntryT(KmpInt32Ty); | ||||
4241 | // Build type kmp_task_t (if not built yet). | ||||
4242 | if (isOpenMPTaskLoopDirective(D.getDirectiveKind())) { | ||||
4243 | if (SavedKmpTaskloopTQTy.isNull()) { | ||||
4244 | SavedKmpTaskloopTQTy = C.getRecordType(createKmpTaskTRecordDecl( | ||||
4245 | CGM, D.getDirectiveKind(), KmpInt32Ty, KmpRoutineEntryPtrQTy)); | ||||
4246 | } | ||||
4247 | KmpTaskTQTy = SavedKmpTaskloopTQTy; | ||||
4248 | } else { | ||||
4249 | assert((D.getDirectiveKind() == OMPD_task ||((void)0) | ||||
4250 | isOpenMPTargetExecutionDirective(D.getDirectiveKind()) ||((void)0) | ||||
4251 | isOpenMPTargetDataManagementDirective(D.getDirectiveKind())) &&((void)0) | ||||
4252 | "Expected taskloop, task or target directive")((void)0); | ||||
4253 | if (SavedKmpTaskTQTy.isNull()) { | ||||
4254 | SavedKmpTaskTQTy = C.getRecordType(createKmpTaskTRecordDecl( | ||||
4255 | CGM, D.getDirectiveKind(), KmpInt32Ty, KmpRoutineEntryPtrQTy)); | ||||
4256 | } | ||||
4257 | KmpTaskTQTy = SavedKmpTaskTQTy; | ||||
4258 | } | ||||
4259 | const auto *KmpTaskTQTyRD = cast<RecordDecl>(KmpTaskTQTy->getAsTagDecl()); | ||||
4260 | // Build particular struct kmp_task_t for the given task. | ||||
4261 | const RecordDecl *KmpTaskTWithPrivatesQTyRD = | ||||
4262 | createKmpTaskTWithPrivatesRecordDecl(CGM, KmpTaskTQTy, Privates); | ||||
4263 | QualType KmpTaskTWithPrivatesQTy = C.getRecordType(KmpTaskTWithPrivatesQTyRD); | ||||
4264 | QualType KmpTaskTWithPrivatesPtrQTy = | ||||
4265 | C.getPointerType(KmpTaskTWithPrivatesQTy); | ||||
4266 | llvm::Type *KmpTaskTWithPrivatesTy = CGF.ConvertType(KmpTaskTWithPrivatesQTy); | ||||
4267 | llvm::Type *KmpTaskTWithPrivatesPtrTy = | ||||
4268 | KmpTaskTWithPrivatesTy->getPointerTo(); | ||||
4269 | llvm::Value *KmpTaskTWithPrivatesTySize = | ||||
4270 | CGF.getTypeSize(KmpTaskTWithPrivatesQTy); | ||||
4271 | QualType SharedsPtrTy = C.getPointerType(SharedsTy); | ||||
4272 | |||||
4273 | // Emit initial values for private copies (if any). | ||||
4274 | llvm::Value *TaskPrivatesMap = nullptr; | ||||
4275 | llvm::Type *TaskPrivatesMapTy = | ||||
4276 | std::next(TaskFunction->arg_begin(), 3)->getType(); | ||||
4277 | if (!Privates.empty()) { | ||||
4278 | auto FI = std::next(KmpTaskTWithPrivatesQTyRD->field_begin()); | ||||
4279 | TaskPrivatesMap = | ||||
4280 | emitTaskPrivateMappingFunction(CGM, Loc, Data, FI->getType(), Privates); | ||||
4281 | TaskPrivatesMap = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
4282 | TaskPrivatesMap, TaskPrivatesMapTy); | ||||
4283 | } else { | ||||
4284 | TaskPrivatesMap = llvm::ConstantPointerNull::get( | ||||
4285 | cast<llvm::PointerType>(TaskPrivatesMapTy)); | ||||
4286 | } | ||||
4287 | // Build a proxy function kmp_int32 .omp_task_entry.(kmp_int32 gtid, | ||||
4288 | // kmp_task_t *tt); | ||||
4289 | llvm::Function *TaskEntry = emitProxyTaskFunction( | ||||
4290 | CGM, Loc, D.getDirectiveKind(), KmpInt32Ty, KmpTaskTWithPrivatesPtrQTy, | ||||
4291 | KmpTaskTWithPrivatesQTy, KmpTaskTQTy, SharedsPtrTy, TaskFunction, | ||||
4292 | TaskPrivatesMap); | ||||
4293 | |||||
4294 | // Build call kmp_task_t * __kmpc_omp_task_alloc(ident_t *, kmp_int32 gtid, | ||||
4295 | // kmp_int32 flags, size_t sizeof_kmp_task_t, size_t sizeof_shareds, | ||||
4296 | // kmp_routine_entry_t *task_entry); | ||||
4297 | // Task flags. Format is taken from | ||||
4298 | // https://github.com/llvm/llvm-project/blob/main/openmp/runtime/src/kmp.h, | ||||
4299 | // description of kmp_tasking_flags struct. | ||||
4300 | enum { | ||||
4301 | TiedFlag = 0x1, | ||||
4302 | FinalFlag = 0x2, | ||||
4303 | DestructorsFlag = 0x8, | ||||
4304 | PriorityFlag = 0x20, | ||||
4305 | DetachableFlag = 0x40, | ||||
4306 | }; | ||||
4307 | unsigned Flags = Data.Tied ? TiedFlag : 0; | ||||
4308 | bool NeedsCleanup = false; | ||||
4309 | if (!Privates.empty()) { | ||||
4310 | NeedsCleanup = | ||||
4311 | checkDestructorsRequired(KmpTaskTWithPrivatesQTyRD, Privates); | ||||
4312 | if (NeedsCleanup) | ||||
4313 | Flags = Flags | DestructorsFlag; | ||||
4314 | } | ||||
4315 | if (Data.Priority.getInt()) | ||||
4316 | Flags = Flags | PriorityFlag; | ||||
4317 | if (D.hasClausesOfKind<OMPDetachClause>()) | ||||
4318 | Flags = Flags | DetachableFlag; | ||||
4319 | llvm::Value *TaskFlags = | ||||
4320 | Data.Final.getPointer() | ||||
4321 | ? CGF.Builder.CreateSelect(Data.Final.getPointer(), | ||||
4322 | CGF.Builder.getInt32(FinalFlag), | ||||
4323 | CGF.Builder.getInt32(/*C=*/0)) | ||||
4324 | : CGF.Builder.getInt32(Data.Final.getInt() ? FinalFlag : 0); | ||||
4325 | TaskFlags = CGF.Builder.CreateOr(TaskFlags, CGF.Builder.getInt32(Flags)); | ||||
4326 | llvm::Value *SharedsSize = CGM.getSize(C.getTypeSizeInChars(SharedsTy)); | ||||
4327 | SmallVector<llvm::Value *, 8> AllocArgs = {emitUpdateLocation(CGF, Loc), | ||||
4328 | getThreadID(CGF, Loc), TaskFlags, KmpTaskTWithPrivatesTySize, | ||||
4329 | SharedsSize, CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
4330 | TaskEntry, KmpRoutineEntryPtrTy)}; | ||||
4331 | llvm::Value *NewTask; | ||||
4332 | if (D.hasClausesOfKind<OMPNowaitClause>()) { | ||||
4333 | // Check if we have any device clause associated with the directive. | ||||
4334 | const Expr *Device = nullptr; | ||||
4335 | if (auto *C = D.getSingleClause<OMPDeviceClause>()) | ||||
4336 | Device = C->getDevice(); | ||||
4337 | // Emit device ID if any otherwise use default value. | ||||
4338 | llvm::Value *DeviceID; | ||||
4339 | if (Device) | ||||
4340 | DeviceID = CGF.Builder.CreateIntCast(CGF.EmitScalarExpr(Device), | ||||
4341 | CGF.Int64Ty, /*isSigned=*/true); | ||||
4342 | else | ||||
4343 | DeviceID = CGF.Builder.getInt64(OMP_DEVICEID_UNDEF); | ||||
4344 | AllocArgs.push_back(DeviceID); | ||||
4345 | NewTask = CGF.EmitRuntimeCall( | ||||
4346 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
4347 | CGM.getModule(), OMPRTL___kmpc_omp_target_task_alloc), | ||||
4348 | AllocArgs); | ||||
4349 | } else { | ||||
4350 | NewTask = | ||||
4351 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
4352 | CGM.getModule(), OMPRTL___kmpc_omp_task_alloc), | ||||
4353 | AllocArgs); | ||||
4354 | } | ||||
4355 | // Emit detach clause initialization. | ||||
4356 | // evt = (typeof(evt))__kmpc_task_allow_completion_event(loc, tid, | ||||
4357 | // task_descriptor); | ||||
4358 | if (const auto *DC = D.getSingleClause<OMPDetachClause>()) { | ||||
4359 | const Expr *Evt = DC->getEventHandler()->IgnoreParenImpCasts(); | ||||
4360 | LValue EvtLVal = CGF.EmitLValue(Evt); | ||||
4361 | |||||
4362 | // Build kmp_event_t *__kmpc_task_allow_completion_event(ident_t *loc_ref, | ||||
4363 | // int gtid, kmp_task_t *task); | ||||
4364 | llvm::Value *Loc = emitUpdateLocation(CGF, DC->getBeginLoc()); | ||||
4365 | llvm::Value *Tid = getThreadID(CGF, DC->getBeginLoc()); | ||||
4366 | Tid = CGF.Builder.CreateIntCast(Tid, CGF.IntTy, /*isSigned=*/false); | ||||
4367 | llvm::Value *EvtVal = CGF.EmitRuntimeCall( | ||||
4368 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
4369 | CGM.getModule(), OMPRTL___kmpc_task_allow_completion_event), | ||||
4370 | {Loc, Tid, NewTask}); | ||||
4371 | EvtVal = CGF.EmitScalarConversion(EvtVal, C.VoidPtrTy, Evt->getType(), | ||||
4372 | Evt->getExprLoc()); | ||||
4373 | CGF.EmitStoreOfScalar(EvtVal, EvtLVal); | ||||
4374 | } | ||||
4375 | // Process affinity clauses. | ||||
4376 | if (D.hasClausesOfKind<OMPAffinityClause>()) { | ||||
4377 | // Process list of affinity data. | ||||
4378 | ASTContext &C = CGM.getContext(); | ||||
4379 | Address AffinitiesArray = Address::invalid(); | ||||
4380 | // Calculate number of elements to form the array of affinity data. | ||||
4381 | llvm::Value *NumOfElements = nullptr; | ||||
4382 | unsigned NumAffinities = 0; | ||||
4383 | for (const auto *C : D.getClausesOfKind<OMPAffinityClause>()) { | ||||
4384 | if (const Expr *Modifier = C->getModifier()) { | ||||
4385 | const auto *IE = cast<OMPIteratorExpr>(Modifier->IgnoreParenImpCasts()); | ||||
4386 | for (unsigned I = 0, E = IE->numOfIterators(); I < E; ++I) { | ||||
4387 | llvm::Value *Sz = CGF.EmitScalarExpr(IE->getHelper(I).Upper); | ||||
4388 | Sz = CGF.Builder.CreateIntCast(Sz, CGF.SizeTy, /*isSigned=*/false); | ||||
4389 | NumOfElements = | ||||
4390 | NumOfElements ? CGF.Builder.CreateNUWMul(NumOfElements, Sz) : Sz; | ||||
4391 | } | ||||
4392 | } else { | ||||
4393 | NumAffinities += C->varlist_size(); | ||||
4394 | } | ||||
4395 | } | ||||
4396 | getKmpAffinityType(CGM.getContext(), KmpTaskAffinityInfoTy); | ||||
4397 | // Fields ids in kmp_task_affinity_info record. | ||||
4398 | enum RTLAffinityInfoFieldsTy { BaseAddr, Len, Flags }; | ||||
4399 | |||||
4400 | QualType KmpTaskAffinityInfoArrayTy; | ||||
4401 | if (NumOfElements) { | ||||
4402 | NumOfElements = CGF.Builder.CreateNUWAdd( | ||||
4403 | llvm::ConstantInt::get(CGF.SizeTy, NumAffinities), NumOfElements); | ||||
4404 | OpaqueValueExpr OVE( | ||||
4405 | Loc, | ||||
4406 | C.getIntTypeForBitwidth(C.getTypeSize(C.getSizeType()), /*Signed=*/0), | ||||
4407 | VK_PRValue); | ||||
4408 | CodeGenFunction::OpaqueValueMapping OpaqueMap(CGF, &OVE, | ||||
4409 | RValue::get(NumOfElements)); | ||||
4410 | KmpTaskAffinityInfoArrayTy = | ||||
4411 | C.getVariableArrayType(KmpTaskAffinityInfoTy, &OVE, ArrayType::Normal, | ||||
4412 | /*IndexTypeQuals=*/0, SourceRange(Loc, Loc)); | ||||
4413 | // Properly emit variable-sized array. | ||||
4414 | auto *PD = ImplicitParamDecl::Create(C, KmpTaskAffinityInfoArrayTy, | ||||
4415 | ImplicitParamDecl::Other); | ||||
4416 | CGF.EmitVarDecl(*PD); | ||||
4417 | AffinitiesArray = CGF.GetAddrOfLocalVar(PD); | ||||
4418 | NumOfElements = CGF.Builder.CreateIntCast(NumOfElements, CGF.Int32Ty, | ||||
4419 | /*isSigned=*/false); | ||||
4420 | } else { | ||||
4421 | KmpTaskAffinityInfoArrayTy = C.getConstantArrayType( | ||||
4422 | KmpTaskAffinityInfoTy, | ||||
4423 | llvm::APInt(C.getTypeSize(C.getSizeType()), NumAffinities), nullptr, | ||||
4424 | ArrayType::Normal, /*IndexTypeQuals=*/0); | ||||
4425 | AffinitiesArray = | ||||
4426 | CGF.CreateMemTemp(KmpTaskAffinityInfoArrayTy, ".affs.arr.addr"); | ||||
4427 | AffinitiesArray = CGF.Builder.CreateConstArrayGEP(AffinitiesArray, 0); | ||||
4428 | NumOfElements = llvm::ConstantInt::get(CGM.Int32Ty, NumAffinities, | ||||
4429 | /*isSigned=*/false); | ||||
4430 | } | ||||
4431 | |||||
4432 | const auto *KmpAffinityInfoRD = KmpTaskAffinityInfoTy->getAsRecordDecl(); | ||||
4433 | // Fill array by elements without iterators. | ||||
4434 | unsigned Pos = 0; | ||||
4435 | bool HasIterator = false; | ||||
4436 | for (const auto *C : D.getClausesOfKind<OMPAffinityClause>()) { | ||||
4437 | if (C->getModifier()) { | ||||
4438 | HasIterator = true; | ||||
4439 | continue; | ||||
4440 | } | ||||
4441 | for (const Expr *E : C->varlists()) { | ||||
4442 | llvm::Value *Addr; | ||||
4443 | llvm::Value *Size; | ||||
4444 | std::tie(Addr, Size) = getPointerAndSize(CGF, E); | ||||
4445 | LValue Base = | ||||
4446 | CGF.MakeAddrLValue(CGF.Builder.CreateConstGEP(AffinitiesArray, Pos), | ||||
4447 | KmpTaskAffinityInfoTy); | ||||
4448 | // affs[i].base_addr = &<Affinities[i].second>; | ||||
4449 | LValue BaseAddrLVal = CGF.EmitLValueForField( | ||||
4450 | Base, *std::next(KmpAffinityInfoRD->field_begin(), BaseAddr)); | ||||
4451 | CGF.EmitStoreOfScalar(CGF.Builder.CreatePtrToInt(Addr, CGF.IntPtrTy), | ||||
4452 | BaseAddrLVal); | ||||
4453 | // affs[i].len = sizeof(<Affinities[i].second>); | ||||
4454 | LValue LenLVal = CGF.EmitLValueForField( | ||||
4455 | Base, *std::next(KmpAffinityInfoRD->field_begin(), Len)); | ||||
4456 | CGF.EmitStoreOfScalar(Size, LenLVal); | ||||
4457 | ++Pos; | ||||
4458 | } | ||||
4459 | } | ||||
4460 | LValue PosLVal; | ||||
4461 | if (HasIterator) { | ||||
4462 | PosLVal = CGF.MakeAddrLValue( | ||||
4463 | CGF.CreateMemTemp(C.getSizeType(), "affs.counter.addr"), | ||||
4464 | C.getSizeType()); | ||||
4465 | CGF.EmitStoreOfScalar(llvm::ConstantInt::get(CGF.SizeTy, Pos), PosLVal); | ||||
4466 | } | ||||
4467 | // Process elements with iterators. | ||||
4468 | for (const auto *C : D.getClausesOfKind<OMPAffinityClause>()) { | ||||
4469 | const Expr *Modifier = C->getModifier(); | ||||
4470 | if (!Modifier) | ||||
4471 | continue; | ||||
4472 | OMPIteratorGeneratorScope IteratorScope( | ||||
4473 | CGF, cast_or_null<OMPIteratorExpr>(Modifier->IgnoreParenImpCasts())); | ||||
4474 | for (const Expr *E : C->varlists()) { | ||||
4475 | llvm::Value *Addr; | ||||
4476 | llvm::Value *Size; | ||||
4477 | std::tie(Addr, Size) = getPointerAndSize(CGF, E); | ||||
4478 | llvm::Value *Idx = CGF.EmitLoadOfScalar(PosLVal, E->getExprLoc()); | ||||
4479 | LValue Base = CGF.MakeAddrLValue( | ||||
4480 | Address(CGF.Builder.CreateGEP(AffinitiesArray.getElementType(), | ||||
4481 | AffinitiesArray.getPointer(), Idx), | ||||
4482 | AffinitiesArray.getAlignment()), | ||||
4483 | KmpTaskAffinityInfoTy); | ||||
4484 | // affs[i].base_addr = &<Affinities[i].second>; | ||||
4485 | LValue BaseAddrLVal = CGF.EmitLValueForField( | ||||
4486 | Base, *std::next(KmpAffinityInfoRD->field_begin(), BaseAddr)); | ||||
4487 | CGF.EmitStoreOfScalar(CGF.Builder.CreatePtrToInt(Addr, CGF.IntPtrTy), | ||||
4488 | BaseAddrLVal); | ||||
4489 | // affs[i].len = sizeof(<Affinities[i].second>); | ||||
4490 | LValue LenLVal = CGF.EmitLValueForField( | ||||
4491 | Base, *std::next(KmpAffinityInfoRD->field_begin(), Len)); | ||||
4492 | CGF.EmitStoreOfScalar(Size, LenLVal); | ||||
4493 | Idx = CGF.Builder.CreateNUWAdd( | ||||
4494 | Idx, llvm::ConstantInt::get(Idx->getType(), 1)); | ||||
4495 | CGF.EmitStoreOfScalar(Idx, PosLVal); | ||||
4496 | } | ||||
4497 | } | ||||
4498 | // Call to kmp_int32 __kmpc_omp_reg_task_with_affinity(ident_t *loc_ref, | ||||
4499 | // kmp_int32 gtid, kmp_task_t *new_task, kmp_int32 | ||||
4500 | // naffins, kmp_task_affinity_info_t *affin_list); | ||||
4501 | llvm::Value *LocRef = emitUpdateLocation(CGF, Loc); | ||||
4502 | llvm::Value *GTid = getThreadID(CGF, Loc); | ||||
4503 | llvm::Value *AffinListPtr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
4504 | AffinitiesArray.getPointer(), CGM.VoidPtrTy); | ||||
4505 | // FIXME: Emit the function and ignore its result for now unless the | ||||
4506 | // runtime function is properly implemented. | ||||
4507 | (void)CGF.EmitRuntimeCall( | ||||
4508 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
4509 | CGM.getModule(), OMPRTL___kmpc_omp_reg_task_with_affinity), | ||||
4510 | {LocRef, GTid, NewTask, NumOfElements, AffinListPtr}); | ||||
4511 | } | ||||
4512 | llvm::Value *NewTaskNewTaskTTy = | ||||
4513 | CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
4514 | NewTask, KmpTaskTWithPrivatesPtrTy); | ||||
4515 | LValue Base = CGF.MakeNaturalAlignAddrLValue(NewTaskNewTaskTTy, | ||||
4516 | KmpTaskTWithPrivatesQTy); | ||||
4517 | LValue TDBase = | ||||
4518 | CGF.EmitLValueForField(Base, *KmpTaskTWithPrivatesQTyRD->field_begin()); | ||||
4519 | // Fill the data in the resulting kmp_task_t record. | ||||
4520 | // Copy shareds if there are any. | ||||
4521 | Address KmpTaskSharedsPtr = Address::invalid(); | ||||
4522 | if (!SharedsTy->getAsStructureType()->getDecl()->field_empty()) { | ||||
4523 | KmpTaskSharedsPtr = | ||||
4524 | Address(CGF.EmitLoadOfScalar( | ||||
4525 | CGF.EmitLValueForField( | ||||
4526 | TDBase, *std::next(KmpTaskTQTyRD->field_begin(), | ||||
4527 | KmpTaskTShareds)), | ||||
4528 | Loc), | ||||
4529 | CGM.getNaturalTypeAlignment(SharedsTy)); | ||||
4530 | LValue Dest = CGF.MakeAddrLValue(KmpTaskSharedsPtr, SharedsTy); | ||||
4531 | LValue Src = CGF.MakeAddrLValue(Shareds, SharedsTy); | ||||
4532 | CGF.EmitAggregateCopy(Dest, Src, SharedsTy, AggValueSlot::DoesNotOverlap); | ||||
4533 | } | ||||
4534 | // Emit initial values for private copies (if any). | ||||
4535 | TaskResultTy Result; | ||||
4536 | if (!Privates.empty()) { | ||||
4537 | emitPrivatesInit(CGF, D, KmpTaskSharedsPtr, Base, KmpTaskTWithPrivatesQTyRD, | ||||
4538 | SharedsTy, SharedsPtrTy, Data, Privates, | ||||
4539 | /*ForDup=*/false); | ||||
4540 | if (isOpenMPTaskLoopDirective(D.getDirectiveKind()) && | ||||
4541 | (!Data.LastprivateVars.empty() || checkInitIsRequired(CGF, Privates))) { | ||||
4542 | Result.TaskDupFn = emitTaskDupFunction( | ||||
4543 | CGM, Loc, D, KmpTaskTWithPrivatesPtrQTy, KmpTaskTWithPrivatesQTyRD, | ||||
4544 | KmpTaskTQTyRD, SharedsTy, SharedsPtrTy, Data, Privates, | ||||
4545 | /*WithLastIter=*/!Data.LastprivateVars.empty()); | ||||
4546 | } | ||||
4547 | } | ||||
4548 | // Fields of union "kmp_cmplrdata_t" for destructors and priority. | ||||
4549 | enum { Priority = 0, Destructors = 1 }; | ||||
4550 | // Provide pointer to function with destructors for privates. | ||||
4551 | auto FI = std::next(KmpTaskTQTyRD->field_begin(), Data1); | ||||
4552 | const RecordDecl *KmpCmplrdataUD = | ||||
4553 | (*FI)->getType()->getAsUnionType()->getDecl(); | ||||
4554 | if (NeedsCleanup) { | ||||
4555 | llvm::Value *DestructorFn = emitDestructorsFunction( | ||||
4556 | CGM, Loc, KmpInt32Ty, KmpTaskTWithPrivatesPtrQTy, | ||||
4557 | KmpTaskTWithPrivatesQTy); | ||||
4558 | LValue Data1LV = CGF.EmitLValueForField(TDBase, *FI); | ||||
4559 | LValue DestructorsLV = CGF.EmitLValueForField( | ||||
4560 | Data1LV, *std::next(KmpCmplrdataUD->field_begin(), Destructors)); | ||||
4561 | CGF.EmitStoreOfScalar(CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
4562 | DestructorFn, KmpRoutineEntryPtrTy), | ||||
4563 | DestructorsLV); | ||||
4564 | } | ||||
4565 | // Set priority. | ||||
4566 | if (Data.Priority.getInt()) { | ||||
4567 | LValue Data2LV = CGF.EmitLValueForField( | ||||
4568 | TDBase, *std::next(KmpTaskTQTyRD->field_begin(), Data2)); | ||||
4569 | LValue PriorityLV = CGF.EmitLValueForField( | ||||
4570 | Data2LV, *std::next(KmpCmplrdataUD->field_begin(), Priority)); | ||||
4571 | CGF.EmitStoreOfScalar(Data.Priority.getPointer(), PriorityLV); | ||||
4572 | } | ||||
4573 | Result.NewTask = NewTask; | ||||
4574 | Result.TaskEntry = TaskEntry; | ||||
4575 | Result.NewTaskNewTaskTTy = NewTaskNewTaskTTy; | ||||
4576 | Result.TDBase = TDBase; | ||||
4577 | Result.KmpTaskTQTyRD = KmpTaskTQTyRD; | ||||
4578 | return Result; | ||||
4579 | } | ||||
4580 | |||||
4581 | namespace { | ||||
4582 | /// Dependence kind for RTL. | ||||
4583 | enum RTLDependenceKindTy { | ||||
4584 | DepIn = 0x01, | ||||
4585 | DepInOut = 0x3, | ||||
4586 | DepMutexInOutSet = 0x4 | ||||
4587 | }; | ||||
4588 | /// Fields ids in kmp_depend_info record. | ||||
4589 | enum RTLDependInfoFieldsTy { BaseAddr, Len, Flags }; | ||||
4590 | } // namespace | ||||
4591 | |||||
4592 | /// Translates internal dependency kind into the runtime kind. | ||||
4593 | static RTLDependenceKindTy translateDependencyKind(OpenMPDependClauseKind K) { | ||||
4594 | RTLDependenceKindTy DepKind; | ||||
4595 | switch (K) { | ||||
4596 | case OMPC_DEPEND_in: | ||||
4597 | DepKind = DepIn; | ||||
4598 | break; | ||||
4599 | // Out and InOut dependencies must use the same code. | ||||
4600 | case OMPC_DEPEND_out: | ||||
4601 | case OMPC_DEPEND_inout: | ||||
4602 | DepKind = DepInOut; | ||||
4603 | break; | ||||
4604 | case OMPC_DEPEND_mutexinoutset: | ||||
4605 | DepKind = DepMutexInOutSet; | ||||
4606 | break; | ||||
4607 | case OMPC_DEPEND_source: | ||||
4608 | case OMPC_DEPEND_sink: | ||||
4609 | case OMPC_DEPEND_depobj: | ||||
4610 | case OMPC_DEPEND_unknown: | ||||
4611 | llvm_unreachable("Unknown task dependence type")__builtin_unreachable(); | ||||
4612 | } | ||||
4613 | return DepKind; | ||||
4614 | } | ||||
4615 | |||||
4616 | /// Builds kmp_depend_info, if it is not built yet, and builds flags type. | ||||
4617 | static void getDependTypes(ASTContext &C, QualType &KmpDependInfoTy, | ||||
4618 | QualType &FlagsTy) { | ||||
4619 | FlagsTy = C.getIntTypeForBitwidth(C.getTypeSize(C.BoolTy), /*Signed=*/false); | ||||
4620 | if (KmpDependInfoTy.isNull()) { | ||||
4621 | RecordDecl *KmpDependInfoRD = C.buildImplicitRecord("kmp_depend_info"); | ||||
4622 | KmpDependInfoRD->startDefinition(); | ||||
4623 | addFieldToRecordDecl(C, KmpDependInfoRD, C.getIntPtrType()); | ||||
4624 | addFieldToRecordDecl(C, KmpDependInfoRD, C.getSizeType()); | ||||
4625 | addFieldToRecordDecl(C, KmpDependInfoRD, FlagsTy); | ||||
4626 | KmpDependInfoRD->completeDefinition(); | ||||
4627 | KmpDependInfoTy = C.getRecordType(KmpDependInfoRD); | ||||
4628 | } | ||||
4629 | } | ||||
4630 | |||||
4631 | std::pair<llvm::Value *, LValue> | ||||
4632 | CGOpenMPRuntime::getDepobjElements(CodeGenFunction &CGF, LValue DepobjLVal, | ||||
4633 | SourceLocation Loc) { | ||||
4634 | ASTContext &C = CGM.getContext(); | ||||
4635 | QualType FlagsTy; | ||||
4636 | getDependTypes(C, KmpDependInfoTy, FlagsTy); | ||||
4637 | RecordDecl *KmpDependInfoRD = | ||||
4638 | cast<RecordDecl>(KmpDependInfoTy->getAsTagDecl()); | ||||
4639 | LValue Base = CGF.EmitLoadOfPointerLValue( | ||||
4640 | DepobjLVal.getAddress(CGF), | ||||
4641 | C.getPointerType(C.VoidPtrTy).castAs<PointerType>()); | ||||
4642 | QualType KmpDependInfoPtrTy = C.getPointerType(KmpDependInfoTy); | ||||
4643 | Address Addr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
4644 | Base.getAddress(CGF), CGF.ConvertTypeForMem(KmpDependInfoPtrTy)); | ||||
4645 | Base = CGF.MakeAddrLValue(Addr, KmpDependInfoTy, Base.getBaseInfo(), | ||||
4646 | Base.getTBAAInfo()); | ||||
4647 | llvm::Value *DepObjAddr = CGF.Builder.CreateGEP( | ||||
4648 | Addr.getElementType(), Addr.getPointer(), | ||||
4649 | llvm::ConstantInt::get(CGF.IntPtrTy, -1, /*isSigned=*/true)); | ||||
4650 | LValue NumDepsBase = CGF.MakeAddrLValue( | ||||
4651 | Address(DepObjAddr, Addr.getAlignment()), KmpDependInfoTy, | ||||
4652 | Base.getBaseInfo(), Base.getTBAAInfo()); | ||||
4653 | // NumDeps = deps[i].base_addr; | ||||
4654 | LValue BaseAddrLVal = CGF.EmitLValueForField( | ||||
4655 | NumDepsBase, *std::next(KmpDependInfoRD->field_begin(), BaseAddr)); | ||||
4656 | llvm::Value *NumDeps = CGF.EmitLoadOfScalar(BaseAddrLVal, Loc); | ||||
4657 | return std::make_pair(NumDeps, Base); | ||||
4658 | } | ||||
4659 | |||||
4660 | static void emitDependData(CodeGenFunction &CGF, QualType &KmpDependInfoTy, | ||||
4661 | llvm::PointerUnion<unsigned *, LValue *> Pos, | ||||
4662 | const OMPTaskDataTy::DependData &Data, | ||||
4663 | Address DependenciesArray) { | ||||
4664 | CodeGenModule &CGM = CGF.CGM; | ||||
4665 | ASTContext &C = CGM.getContext(); | ||||
4666 | QualType FlagsTy; | ||||
4667 | getDependTypes(C, KmpDependInfoTy, FlagsTy); | ||||
4668 | RecordDecl *KmpDependInfoRD = | ||||
4669 | cast<RecordDecl>(KmpDependInfoTy->getAsTagDecl()); | ||||
4670 | llvm::Type *LLVMFlagsTy = CGF.ConvertTypeForMem(FlagsTy); | ||||
4671 | |||||
4672 | OMPIteratorGeneratorScope IteratorScope( | ||||
4673 | CGF, cast_or_null<OMPIteratorExpr>( | ||||
4674 | Data.IteratorExpr ? Data.IteratorExpr->IgnoreParenImpCasts() | ||||
4675 | : nullptr)); | ||||
4676 | for (const Expr *E : Data.DepExprs) { | ||||
4677 | llvm::Value *Addr; | ||||
4678 | llvm::Value *Size; | ||||
4679 | std::tie(Addr, Size) = getPointerAndSize(CGF, E); | ||||
4680 | LValue Base; | ||||
4681 | if (unsigned *P = Pos.dyn_cast<unsigned *>()) { | ||||
4682 | Base = CGF.MakeAddrLValue( | ||||
4683 | CGF.Builder.CreateConstGEP(DependenciesArray, *P), KmpDependInfoTy); | ||||
4684 | } else { | ||||
4685 | LValue &PosLVal = *Pos.get<LValue *>(); | ||||
4686 | llvm::Value *Idx = CGF.EmitLoadOfScalar(PosLVal, E->getExprLoc()); | ||||
4687 | Base = CGF.MakeAddrLValue( | ||||
4688 | Address(CGF.Builder.CreateGEP(DependenciesArray.getElementType(), | ||||
4689 | DependenciesArray.getPointer(), Idx), | ||||
4690 | DependenciesArray.getAlignment()), | ||||
4691 | KmpDependInfoTy); | ||||
4692 | } | ||||
4693 | // deps[i].base_addr = &<Dependencies[i].second>; | ||||
4694 | LValue BaseAddrLVal = CGF.EmitLValueForField( | ||||
4695 | Base, *std::next(KmpDependInfoRD->field_begin(), BaseAddr)); | ||||
4696 | CGF.EmitStoreOfScalar(CGF.Builder.CreatePtrToInt(Addr, CGF.IntPtrTy), | ||||
4697 | BaseAddrLVal); | ||||
4698 | // deps[i].len = sizeof(<Dependencies[i].second>); | ||||
4699 | LValue LenLVal = CGF.EmitLValueForField( | ||||
4700 | Base, *std::next(KmpDependInfoRD->field_begin(), Len)); | ||||
4701 | CGF.EmitStoreOfScalar(Size, LenLVal); | ||||
4702 | // deps[i].flags = <Dependencies[i].first>; | ||||
4703 | RTLDependenceKindTy DepKind = translateDependencyKind(Data.DepKind); | ||||
4704 | LValue FlagsLVal = CGF.EmitLValueForField( | ||||
4705 | Base, *std::next(KmpDependInfoRD->field_begin(), Flags)); | ||||
4706 | CGF.EmitStoreOfScalar(llvm::ConstantInt::get(LLVMFlagsTy, DepKind), | ||||
4707 | FlagsLVal); | ||||
4708 | if (unsigned *P = Pos.dyn_cast<unsigned *>()) { | ||||
4709 | ++(*P); | ||||
4710 | } else { | ||||
4711 | LValue &PosLVal = *Pos.get<LValue *>(); | ||||
4712 | llvm::Value *Idx = CGF.EmitLoadOfScalar(PosLVal, E->getExprLoc()); | ||||
4713 | Idx = CGF.Builder.CreateNUWAdd(Idx, | ||||
4714 | llvm::ConstantInt::get(Idx->getType(), 1)); | ||||
4715 | CGF.EmitStoreOfScalar(Idx, PosLVal); | ||||
4716 | } | ||||
4717 | } | ||||
4718 | } | ||||
4719 | |||||
4720 | static SmallVector<llvm::Value *, 4> | ||||
4721 | emitDepobjElementsSizes(CodeGenFunction &CGF, QualType &KmpDependInfoTy, | ||||
4722 | const OMPTaskDataTy::DependData &Data) { | ||||
4723 | assert(Data.DepKind == OMPC_DEPEND_depobj &&((void)0) | ||||
4724 | "Expected depobj dependecy kind.")((void)0); | ||||
4725 | SmallVector<llvm::Value *, 4> Sizes; | ||||
4726 | SmallVector<LValue, 4> SizeLVals; | ||||
4727 | ASTContext &C = CGF.getContext(); | ||||
4728 | QualType FlagsTy; | ||||
4729 | getDependTypes(C, KmpDependInfoTy, FlagsTy); | ||||
4730 | RecordDecl *KmpDependInfoRD = | ||||
4731 | cast<RecordDecl>(KmpDependInfoTy->getAsTagDecl()); | ||||
4732 | QualType KmpDependInfoPtrTy = C.getPointerType(KmpDependInfoTy); | ||||
4733 | llvm::Type *KmpDependInfoPtrT = CGF.ConvertTypeForMem(KmpDependInfoPtrTy); | ||||
4734 | { | ||||
4735 | OMPIteratorGeneratorScope IteratorScope( | ||||
4736 | CGF, cast_or_null<OMPIteratorExpr>( | ||||
4737 | Data.IteratorExpr ? Data.IteratorExpr->IgnoreParenImpCasts() | ||||
4738 | : nullptr)); | ||||
4739 | for (const Expr *E : Data.DepExprs) { | ||||
4740 | LValue DepobjLVal = CGF.EmitLValue(E->IgnoreParenImpCasts()); | ||||
4741 | LValue Base = CGF.EmitLoadOfPointerLValue( | ||||
4742 | DepobjLVal.getAddress(CGF), | ||||
4743 | C.getPointerType(C.VoidPtrTy).castAs<PointerType>()); | ||||
4744 | Address Addr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
4745 | Base.getAddress(CGF), KmpDependInfoPtrT); | ||||
4746 | Base = CGF.MakeAddrLValue(Addr, KmpDependInfoTy, Base.getBaseInfo(), | ||||
4747 | Base.getTBAAInfo()); | ||||
4748 | llvm::Value *DepObjAddr = CGF.Builder.CreateGEP( | ||||
4749 | Addr.getElementType(), Addr.getPointer(), | ||||
4750 | llvm::ConstantInt::get(CGF.IntPtrTy, -1, /*isSigned=*/true)); | ||||
4751 | LValue NumDepsBase = CGF.MakeAddrLValue( | ||||
4752 | Address(DepObjAddr, Addr.getAlignment()), KmpDependInfoTy, | ||||
4753 | Base.getBaseInfo(), Base.getTBAAInfo()); | ||||
4754 | // NumDeps = deps[i].base_addr; | ||||
4755 | LValue BaseAddrLVal = CGF.EmitLValueForField( | ||||
4756 | NumDepsBase, *std::next(KmpDependInfoRD->field_begin(), BaseAddr)); | ||||
4757 | llvm::Value *NumDeps = | ||||
4758 | CGF.EmitLoadOfScalar(BaseAddrLVal, E->getExprLoc()); | ||||
4759 | LValue NumLVal = CGF.MakeAddrLValue( | ||||
4760 | CGF.CreateMemTemp(C.getUIntPtrType(), "depobj.size.addr"), | ||||
4761 | C.getUIntPtrType()); | ||||
4762 | CGF.InitTempAlloca(NumLVal.getAddress(CGF), | ||||
4763 | llvm::ConstantInt::get(CGF.IntPtrTy, 0)); | ||||
4764 | llvm::Value *PrevVal = CGF.EmitLoadOfScalar(NumLVal, E->getExprLoc()); | ||||
4765 | llvm::Value *Add = CGF.Builder.CreateNUWAdd(PrevVal, NumDeps); | ||||
4766 | CGF.EmitStoreOfScalar(Add, NumLVal); | ||||
4767 | SizeLVals.push_back(NumLVal); | ||||
4768 | } | ||||
4769 | } | ||||
4770 | for (unsigned I = 0, E = SizeLVals.size(); I < E; ++I) { | ||||
4771 | llvm::Value *Size = | ||||
4772 | CGF.EmitLoadOfScalar(SizeLVals[I], Data.DepExprs[I]->getExprLoc()); | ||||
4773 | Sizes.push_back(Size); | ||||
4774 | } | ||||
4775 | return Sizes; | ||||
4776 | } | ||||
4777 | |||||
4778 | static void emitDepobjElements(CodeGenFunction &CGF, QualType &KmpDependInfoTy, | ||||
4779 | LValue PosLVal, | ||||
4780 | const OMPTaskDataTy::DependData &Data, | ||||
4781 | Address DependenciesArray) { | ||||
4782 | assert(Data.DepKind == OMPC_DEPEND_depobj &&((void)0) | ||||
4783 | "Expected depobj dependecy kind.")((void)0); | ||||
4784 | ASTContext &C = CGF.getContext(); | ||||
4785 | QualType FlagsTy; | ||||
4786 | getDependTypes(C, KmpDependInfoTy, FlagsTy); | ||||
4787 | RecordDecl *KmpDependInfoRD = | ||||
4788 | cast<RecordDecl>(KmpDependInfoTy->getAsTagDecl()); | ||||
4789 | QualType KmpDependInfoPtrTy = C.getPointerType(KmpDependInfoTy); | ||||
4790 | llvm::Type *KmpDependInfoPtrT = CGF.ConvertTypeForMem(KmpDependInfoPtrTy); | ||||
4791 | llvm::Value *ElSize = CGF.getTypeSize(KmpDependInfoTy); | ||||
4792 | { | ||||
4793 | OMPIteratorGeneratorScope IteratorScope( | ||||
4794 | CGF, cast_or_null<OMPIteratorExpr>( | ||||
4795 | Data.IteratorExpr ? Data.IteratorExpr->IgnoreParenImpCasts() | ||||
4796 | : nullptr)); | ||||
4797 | for (unsigned I = 0, End = Data.DepExprs.size(); I < End; ++I) { | ||||
4798 | const Expr *E = Data.DepExprs[I]; | ||||
4799 | LValue DepobjLVal = CGF.EmitLValue(E->IgnoreParenImpCasts()); | ||||
4800 | LValue Base = CGF.EmitLoadOfPointerLValue( | ||||
4801 | DepobjLVal.getAddress(CGF), | ||||
4802 | C.getPointerType(C.VoidPtrTy).castAs<PointerType>()); | ||||
4803 | Address Addr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
4804 | Base.getAddress(CGF), KmpDependInfoPtrT); | ||||
4805 | Base = CGF.MakeAddrLValue(Addr, KmpDependInfoTy, Base.getBaseInfo(), | ||||
4806 | Base.getTBAAInfo()); | ||||
4807 | |||||
4808 | // Get number of elements in a single depobj. | ||||
4809 | llvm::Value *DepObjAddr = CGF.Builder.CreateGEP( | ||||
4810 | Addr.getElementType(), Addr.getPointer(), | ||||
4811 | llvm::ConstantInt::get(CGF.IntPtrTy, -1, /*isSigned=*/true)); | ||||
4812 | LValue NumDepsBase = CGF.MakeAddrLValue( | ||||
4813 | Address(DepObjAddr, Addr.getAlignment()), KmpDependInfoTy, | ||||
4814 | Base.getBaseInfo(), Base.getTBAAInfo()); | ||||
4815 | // NumDeps = deps[i].base_addr; | ||||
4816 | LValue BaseAddrLVal = CGF.EmitLValueForField( | ||||
4817 | NumDepsBase, *std::next(KmpDependInfoRD->field_begin(), BaseAddr)); | ||||
4818 | llvm::Value *NumDeps = | ||||
4819 | CGF.EmitLoadOfScalar(BaseAddrLVal, E->getExprLoc()); | ||||
4820 | |||||
4821 | // memcopy dependency data. | ||||
4822 | llvm::Value *Size = CGF.Builder.CreateNUWMul( | ||||
4823 | ElSize, | ||||
4824 | CGF.Builder.CreateIntCast(NumDeps, CGF.SizeTy, /*isSigned=*/false)); | ||||
4825 | llvm::Value *Pos = CGF.EmitLoadOfScalar(PosLVal, E->getExprLoc()); | ||||
4826 | Address DepAddr = | ||||
4827 | Address(CGF.Builder.CreateGEP(DependenciesArray.getElementType(), | ||||
4828 | DependenciesArray.getPointer(), Pos), | ||||
4829 | DependenciesArray.getAlignment()); | ||||
4830 | CGF.Builder.CreateMemCpy(DepAddr, Base.getAddress(CGF), Size); | ||||
4831 | |||||
4832 | // Increase pos. | ||||
4833 | // pos += size; | ||||
4834 | llvm::Value *Add = CGF.Builder.CreateNUWAdd(Pos, NumDeps); | ||||
4835 | CGF.EmitStoreOfScalar(Add, PosLVal); | ||||
4836 | } | ||||
4837 | } | ||||
4838 | } | ||||
4839 | |||||
4840 | std::pair<llvm::Value *, Address> CGOpenMPRuntime::emitDependClause( | ||||
4841 | CodeGenFunction &CGF, ArrayRef<OMPTaskDataTy::DependData> Dependencies, | ||||
4842 | SourceLocation Loc) { | ||||
4843 | if (llvm::all_of(Dependencies, [](const OMPTaskDataTy::DependData &D) { | ||||
4844 | return D.DepExprs.empty(); | ||||
4845 | })) | ||||
4846 | return std::make_pair(nullptr, Address::invalid()); | ||||
4847 | // Process list of dependencies. | ||||
4848 | ASTContext &C = CGM.getContext(); | ||||
4849 | Address DependenciesArray = Address::invalid(); | ||||
4850 | llvm::Value *NumOfElements = nullptr; | ||||
4851 | unsigned NumDependencies = std::accumulate( | ||||
4852 | Dependencies.begin(), Dependencies.end(), 0, | ||||
4853 | [](unsigned V, const OMPTaskDataTy::DependData &D) { | ||||
4854 | return D.DepKind == OMPC_DEPEND_depobj | ||||
4855 | ? V | ||||
4856 | : (V + (D.IteratorExpr ? 0 : D.DepExprs.size())); | ||||
4857 | }); | ||||
4858 | QualType FlagsTy; | ||||
4859 | getDependTypes(C, KmpDependInfoTy, FlagsTy); | ||||
4860 | bool HasDepobjDeps = false; | ||||
4861 | bool HasRegularWithIterators = false; | ||||
4862 | llvm::Value *NumOfDepobjElements = llvm::ConstantInt::get(CGF.IntPtrTy, 0); | ||||
4863 | llvm::Value *NumOfRegularWithIterators = | ||||
4864 | llvm::ConstantInt::get(CGF.IntPtrTy, 1); | ||||
4865 | // Calculate number of depobj dependecies and regular deps with the iterators. | ||||
4866 | for (const OMPTaskDataTy::DependData &D : Dependencies) { | ||||
4867 | if (D.DepKind == OMPC_DEPEND_depobj) { | ||||
4868 | SmallVector<llvm::Value *, 4> Sizes = | ||||
4869 | emitDepobjElementsSizes(CGF, KmpDependInfoTy, D); | ||||
4870 | for (llvm::Value *Size : Sizes) { | ||||
4871 | NumOfDepobjElements = | ||||
4872 | CGF.Builder.CreateNUWAdd(NumOfDepobjElements, Size); | ||||
4873 | } | ||||
4874 | HasDepobjDeps = true; | ||||
4875 | continue; | ||||
4876 | } | ||||
4877 | // Include number of iterations, if any. | ||||
4878 | if (const auto *IE = cast_or_null<OMPIteratorExpr>(D.IteratorExpr)) { | ||||
4879 | for (unsigned I = 0, E = IE->numOfIterators(); I < E; ++I) { | ||||
4880 | llvm::Value *Sz = CGF.EmitScalarExpr(IE->getHelper(I).Upper); | ||||
4881 | Sz = CGF.Builder.CreateIntCast(Sz, CGF.IntPtrTy, /*isSigned=*/false); | ||||
4882 | NumOfRegularWithIterators = | ||||
4883 | CGF.Builder.CreateNUWMul(NumOfRegularWithIterators, Sz); | ||||
4884 | } | ||||
4885 | HasRegularWithIterators = true; | ||||
4886 | continue; | ||||
4887 | } | ||||
4888 | } | ||||
4889 | |||||
4890 | QualType KmpDependInfoArrayTy; | ||||
4891 | if (HasDepobjDeps || HasRegularWithIterators) { | ||||
4892 | NumOfElements = llvm::ConstantInt::get(CGM.IntPtrTy, NumDependencies, | ||||
4893 | /*isSigned=*/false); | ||||
4894 | if (HasDepobjDeps) { | ||||
4895 | NumOfElements = | ||||
4896 | CGF.Builder.CreateNUWAdd(NumOfDepobjElements, NumOfElements); | ||||
4897 | } | ||||
4898 | if (HasRegularWithIterators) { | ||||
4899 | NumOfElements = | ||||
4900 | CGF.Builder.CreateNUWAdd(NumOfRegularWithIterators, NumOfElements); | ||||
4901 | } | ||||
4902 | OpaqueValueExpr OVE(Loc, | ||||
4903 | C.getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/0), | ||||
4904 | VK_PRValue); | ||||
4905 | CodeGenFunction::OpaqueValueMapping OpaqueMap(CGF, &OVE, | ||||
4906 | RValue::get(NumOfElements)); | ||||
4907 | KmpDependInfoArrayTy = | ||||
4908 | C.getVariableArrayType(KmpDependInfoTy, &OVE, ArrayType::Normal, | ||||
4909 | /*IndexTypeQuals=*/0, SourceRange(Loc, Loc)); | ||||
4910 | // CGF.EmitVariablyModifiedType(KmpDependInfoArrayTy); | ||||
4911 | // Properly emit variable-sized array. | ||||
4912 | auto *PD = ImplicitParamDecl::Create(C, KmpDependInfoArrayTy, | ||||
4913 | ImplicitParamDecl::Other); | ||||
4914 | CGF.EmitVarDecl(*PD); | ||||
4915 | DependenciesArray = CGF.GetAddrOfLocalVar(PD); | ||||
4916 | NumOfElements = CGF.Builder.CreateIntCast(NumOfElements, CGF.Int32Ty, | ||||
4917 | /*isSigned=*/false); | ||||
4918 | } else { | ||||
4919 | KmpDependInfoArrayTy = C.getConstantArrayType( | ||||
4920 | KmpDependInfoTy, llvm::APInt(/*numBits=*/64, NumDependencies), nullptr, | ||||
4921 | ArrayType::Normal, /*IndexTypeQuals=*/0); | ||||
4922 | DependenciesArray = | ||||
4923 | CGF.CreateMemTemp(KmpDependInfoArrayTy, ".dep.arr.addr"); | ||||
4924 | DependenciesArray = CGF.Builder.CreateConstArrayGEP(DependenciesArray, 0); | ||||
4925 | NumOfElements = llvm::ConstantInt::get(CGM.Int32Ty, NumDependencies, | ||||
4926 | /*isSigned=*/false); | ||||
4927 | } | ||||
4928 | unsigned Pos = 0; | ||||
4929 | for (unsigned I = 0, End = Dependencies.size(); I < End; ++I) { | ||||
4930 | if (Dependencies[I].DepKind == OMPC_DEPEND_depobj || | ||||
4931 | Dependencies[I].IteratorExpr) | ||||
4932 | continue; | ||||
4933 | emitDependData(CGF, KmpDependInfoTy, &Pos, Dependencies[I], | ||||
4934 | DependenciesArray); | ||||
4935 | } | ||||
4936 | // Copy regular dependecies with iterators. | ||||
4937 | LValue PosLVal = CGF.MakeAddrLValue( | ||||
4938 | CGF.CreateMemTemp(C.getSizeType(), "dep.counter.addr"), C.getSizeType()); | ||||
4939 | CGF.EmitStoreOfScalar(llvm::ConstantInt::get(CGF.SizeTy, Pos), PosLVal); | ||||
4940 | for (unsigned I = 0, End = Dependencies.size(); I < End; ++I) { | ||||
4941 | if (Dependencies[I].DepKind == OMPC_DEPEND_depobj || | ||||
4942 | !Dependencies[I].IteratorExpr) | ||||
4943 | continue; | ||||
4944 | emitDependData(CGF, KmpDependInfoTy, &PosLVal, Dependencies[I], | ||||
4945 | DependenciesArray); | ||||
4946 | } | ||||
4947 | // Copy final depobj arrays without iterators. | ||||
4948 | if (HasDepobjDeps) { | ||||
4949 | for (unsigned I = 0, End = Dependencies.size(); I < End; ++I) { | ||||
4950 | if (Dependencies[I].DepKind != OMPC_DEPEND_depobj) | ||||
4951 | continue; | ||||
4952 | emitDepobjElements(CGF, KmpDependInfoTy, PosLVal, Dependencies[I], | ||||
4953 | DependenciesArray); | ||||
4954 | } | ||||
4955 | } | ||||
4956 | DependenciesArray = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
4957 | DependenciesArray, CGF.VoidPtrTy); | ||||
4958 | return std::make_pair(NumOfElements, DependenciesArray); | ||||
4959 | } | ||||
4960 | |||||
4961 | Address CGOpenMPRuntime::emitDepobjDependClause( | ||||
4962 | CodeGenFunction &CGF, const OMPTaskDataTy::DependData &Dependencies, | ||||
4963 | SourceLocation Loc) { | ||||
4964 | if (Dependencies.DepExprs.empty()) | ||||
4965 | return Address::invalid(); | ||||
4966 | // Process list of dependencies. | ||||
4967 | ASTContext &C = CGM.getContext(); | ||||
4968 | Address DependenciesArray = Address::invalid(); | ||||
4969 | unsigned NumDependencies = Dependencies.DepExprs.size(); | ||||
4970 | QualType FlagsTy; | ||||
4971 | getDependTypes(C, KmpDependInfoTy, FlagsTy); | ||||
4972 | RecordDecl *KmpDependInfoRD = | ||||
4973 | cast<RecordDecl>(KmpDependInfoTy->getAsTagDecl()); | ||||
4974 | |||||
4975 | llvm::Value *Size; | ||||
4976 | // Define type kmp_depend_info[<Dependencies.size()>]; | ||||
4977 | // For depobj reserve one extra element to store the number of elements. | ||||
4978 | // It is required to handle depobj(x) update(in) construct. | ||||
4979 | // kmp_depend_info[<Dependencies.size()>] deps; | ||||
4980 | llvm::Value *NumDepsVal; | ||||
4981 | CharUnits Align = C.getTypeAlignInChars(KmpDependInfoTy); | ||||
4982 | if (const auto *IE = | ||||
4983 | cast_or_null<OMPIteratorExpr>(Dependencies.IteratorExpr)) { | ||||
4984 | NumDepsVal = llvm::ConstantInt::get(CGF.SizeTy, 1); | ||||
4985 | for (unsigned I = 0, E = IE->numOfIterators(); I < E; ++I) { | ||||
4986 | llvm::Value *Sz = CGF.EmitScalarExpr(IE->getHelper(I).Upper); | ||||
4987 | Sz = CGF.Builder.CreateIntCast(Sz, CGF.SizeTy, /*isSigned=*/false); | ||||
4988 | NumDepsVal = CGF.Builder.CreateNUWMul(NumDepsVal, Sz); | ||||
4989 | } | ||||
4990 | Size = CGF.Builder.CreateNUWAdd(llvm::ConstantInt::get(CGF.SizeTy, 1), | ||||
4991 | NumDepsVal); | ||||
4992 | CharUnits SizeInBytes = | ||||
4993 | C.getTypeSizeInChars(KmpDependInfoTy).alignTo(Align); | ||||
4994 | llvm::Value *RecSize = CGM.getSize(SizeInBytes); | ||||
4995 | Size = CGF.Builder.CreateNUWMul(Size, RecSize); | ||||
4996 | NumDepsVal = | ||||
4997 | CGF.Builder.CreateIntCast(NumDepsVal, CGF.IntPtrTy, /*isSigned=*/false); | ||||
4998 | } else { | ||||
4999 | QualType KmpDependInfoArrayTy = C.getConstantArrayType( | ||||
5000 | KmpDependInfoTy, llvm::APInt(/*numBits=*/64, NumDependencies + 1), | ||||
5001 | nullptr, ArrayType::Normal, /*IndexTypeQuals=*/0); | ||||
5002 | CharUnits Sz = C.getTypeSizeInChars(KmpDependInfoArrayTy); | ||||
5003 | Size = CGM.getSize(Sz.alignTo(Align)); | ||||
5004 | NumDepsVal = llvm::ConstantInt::get(CGF.IntPtrTy, NumDependencies); | ||||
5005 | } | ||||
5006 | // Need to allocate on the dynamic memory. | ||||
5007 | llvm::Value *ThreadID = getThreadID(CGF, Loc); | ||||
5008 | // Use default allocator. | ||||
5009 | llvm::Value *Allocator = llvm::ConstantPointerNull::get(CGF.VoidPtrTy); | ||||
5010 | llvm::Value *Args[] = {ThreadID, Size, Allocator}; | ||||
5011 | |||||
5012 | llvm::Value *Addr = | ||||
5013 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
5014 | CGM.getModule(), OMPRTL___kmpc_alloc), | ||||
5015 | Args, ".dep.arr.addr"); | ||||
5016 | Addr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
5017 | Addr, CGF.ConvertTypeForMem(KmpDependInfoTy)->getPointerTo()); | ||||
5018 | DependenciesArray = Address(Addr, Align); | ||||
5019 | // Write number of elements in the first element of array for depobj. | ||||
5020 | LValue Base = CGF.MakeAddrLValue(DependenciesArray, KmpDependInfoTy); | ||||
5021 | // deps[i].base_addr = NumDependencies; | ||||
5022 | LValue BaseAddrLVal = CGF.EmitLValueForField( | ||||
5023 | Base, *std::next(KmpDependInfoRD->field_begin(), BaseAddr)); | ||||
5024 | CGF.EmitStoreOfScalar(NumDepsVal, BaseAddrLVal); | ||||
5025 | llvm::PointerUnion<unsigned *, LValue *> Pos; | ||||
5026 | unsigned Idx = 1; | ||||
5027 | LValue PosLVal; | ||||
5028 | if (Dependencies.IteratorExpr) { | ||||
5029 | PosLVal = CGF.MakeAddrLValue( | ||||
5030 | CGF.CreateMemTemp(C.getSizeType(), "iterator.counter.addr"), | ||||
5031 | C.getSizeType()); | ||||
5032 | CGF.EmitStoreOfScalar(llvm::ConstantInt::get(CGF.SizeTy, Idx), PosLVal, | ||||
5033 | /*IsInit=*/true); | ||||
5034 | Pos = &PosLVal; | ||||
5035 | } else { | ||||
5036 | Pos = &Idx; | ||||
5037 | } | ||||
5038 | emitDependData(CGF, KmpDependInfoTy, Pos, Dependencies, DependenciesArray); | ||||
5039 | DependenciesArray = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
5040 | CGF.Builder.CreateConstGEP(DependenciesArray, 1), CGF.VoidPtrTy); | ||||
5041 | return DependenciesArray; | ||||
5042 | } | ||||
5043 | |||||
5044 | void CGOpenMPRuntime::emitDestroyClause(CodeGenFunction &CGF, LValue DepobjLVal, | ||||
5045 | SourceLocation Loc) { | ||||
5046 | ASTContext &C = CGM.getContext(); | ||||
5047 | QualType FlagsTy; | ||||
5048 | getDependTypes(C, KmpDependInfoTy, FlagsTy); | ||||
5049 | LValue Base = CGF.EmitLoadOfPointerLValue( | ||||
5050 | DepobjLVal.getAddress(CGF), | ||||
5051 | C.getPointerType(C.VoidPtrTy).castAs<PointerType>()); | ||||
5052 | QualType KmpDependInfoPtrTy = C.getPointerType(KmpDependInfoTy); | ||||
5053 | Address Addr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
5054 | Base.getAddress(CGF), CGF.ConvertTypeForMem(KmpDependInfoPtrTy)); | ||||
5055 | llvm::Value *DepObjAddr = CGF.Builder.CreateGEP( | ||||
5056 | Addr.getElementType(), Addr.getPointer(), | ||||
5057 | llvm::ConstantInt::get(CGF.IntPtrTy, -1, /*isSigned=*/true)); | ||||
5058 | DepObjAddr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(DepObjAddr, | ||||
5059 | CGF.VoidPtrTy); | ||||
5060 | llvm::Value *ThreadID = getThreadID(CGF, Loc); | ||||
5061 | // Use default allocator. | ||||
5062 | llvm::Value *Allocator = llvm::ConstantPointerNull::get(CGF.VoidPtrTy); | ||||
5063 | llvm::Value *Args[] = {ThreadID, DepObjAddr, Allocator}; | ||||
5064 | |||||
5065 | // _kmpc_free(gtid, addr, nullptr); | ||||
5066 | (void)CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
5067 | CGM.getModule(), OMPRTL___kmpc_free), | ||||
5068 | Args); | ||||
5069 | } | ||||
5070 | |||||
5071 | void CGOpenMPRuntime::emitUpdateClause(CodeGenFunction &CGF, LValue DepobjLVal, | ||||
5072 | OpenMPDependClauseKind NewDepKind, | ||||
5073 | SourceLocation Loc) { | ||||
5074 | ASTContext &C = CGM.getContext(); | ||||
5075 | QualType FlagsTy; | ||||
5076 | getDependTypes(C, KmpDependInfoTy, FlagsTy); | ||||
5077 | RecordDecl *KmpDependInfoRD = | ||||
5078 | cast<RecordDecl>(KmpDependInfoTy->getAsTagDecl()); | ||||
5079 | llvm::Type *LLVMFlagsTy = CGF.ConvertTypeForMem(FlagsTy); | ||||
5080 | llvm::Value *NumDeps; | ||||
5081 | LValue Base; | ||||
5082 | std::tie(NumDeps, Base) = getDepobjElements(CGF, DepobjLVal, Loc); | ||||
5083 | |||||
5084 | Address Begin = Base.getAddress(CGF); | ||||
5085 | // Cast from pointer to array type to pointer to single element. | ||||
5086 | llvm::Value *End = CGF.Builder.CreateGEP( | ||||
5087 | Begin.getElementType(), Begin.getPointer(), NumDeps); | ||||
5088 | // The basic structure here is a while-do loop. | ||||
5089 | llvm::BasicBlock *BodyBB = CGF.createBasicBlock("omp.body"); | ||||
5090 | llvm::BasicBlock *DoneBB = CGF.createBasicBlock("omp.done"); | ||||
5091 | llvm::BasicBlock *EntryBB = CGF.Builder.GetInsertBlock(); | ||||
5092 | CGF.EmitBlock(BodyBB); | ||||
5093 | llvm::PHINode *ElementPHI = | ||||
5094 | CGF.Builder.CreatePHI(Begin.getType(), 2, "omp.elementPast"); | ||||
5095 | ElementPHI->addIncoming(Begin.getPointer(), EntryBB); | ||||
5096 | Begin = Address(ElementPHI, Begin.getAlignment()); | ||||
5097 | Base = CGF.MakeAddrLValue(Begin, KmpDependInfoTy, Base.getBaseInfo(), | ||||
5098 | Base.getTBAAInfo()); | ||||
5099 | // deps[i].flags = NewDepKind; | ||||
5100 | RTLDependenceKindTy DepKind = translateDependencyKind(NewDepKind); | ||||
5101 | LValue FlagsLVal = CGF.EmitLValueForField( | ||||
5102 | Base, *std::next(KmpDependInfoRD->field_begin(), Flags)); | ||||
5103 | CGF.EmitStoreOfScalar(llvm::ConstantInt::get(LLVMFlagsTy, DepKind), | ||||
5104 | FlagsLVal); | ||||
5105 | |||||
5106 | // Shift the address forward by one element. | ||||
5107 | Address ElementNext = | ||||
5108 | CGF.Builder.CreateConstGEP(Begin, /*Index=*/1, "omp.elementNext"); | ||||
5109 | ElementPHI->addIncoming(ElementNext.getPointer(), | ||||
5110 | CGF.Builder.GetInsertBlock()); | ||||
5111 | llvm::Value *IsEmpty = | ||||
5112 | CGF.Builder.CreateICmpEQ(ElementNext.getPointer(), End, "omp.isempty"); | ||||
5113 | CGF.Builder.CreateCondBr(IsEmpty, DoneBB, BodyBB); | ||||
5114 | // Done. | ||||
5115 | CGF.EmitBlock(DoneBB, /*IsFinished=*/true); | ||||
5116 | } | ||||
5117 | |||||
5118 | void CGOpenMPRuntime::emitTaskCall(CodeGenFunction &CGF, SourceLocation Loc, | ||||
5119 | const OMPExecutableDirective &D, | ||||
5120 | llvm::Function *TaskFunction, | ||||
5121 | QualType SharedsTy, Address Shareds, | ||||
5122 | const Expr *IfCond, | ||||
5123 | const OMPTaskDataTy &Data) { | ||||
5124 | if (!CGF.HaveInsertPoint()) | ||||
5125 | return; | ||||
5126 | |||||
5127 | TaskResultTy Result = | ||||
5128 | emitTaskInit(CGF, Loc, D, TaskFunction, SharedsTy, Shareds, Data); | ||||
5129 | llvm::Value *NewTask = Result.NewTask; | ||||
5130 | llvm::Function *TaskEntry = Result.TaskEntry; | ||||
5131 | llvm::Value *NewTaskNewTaskTTy = Result.NewTaskNewTaskTTy; | ||||
5132 | LValue TDBase = Result.TDBase; | ||||
5133 | const RecordDecl *KmpTaskTQTyRD = Result.KmpTaskTQTyRD; | ||||
5134 | // Process list of dependences. | ||||
5135 | Address DependenciesArray = Address::invalid(); | ||||
5136 | llvm::Value *NumOfElements; | ||||
5137 | std::tie(NumOfElements, DependenciesArray) = | ||||
5138 | emitDependClause(CGF, Data.Dependences, Loc); | ||||
5139 | |||||
5140 | // NOTE: routine and part_id fields are initialized by __kmpc_omp_task_alloc() | ||||
5141 | // libcall. | ||||
5142 | // Build kmp_int32 __kmpc_omp_task_with_deps(ident_t *, kmp_int32 gtid, | ||||
5143 | // kmp_task_t *new_task, kmp_int32 ndeps, kmp_depend_info_t *dep_list, | ||||
5144 | // kmp_int32 ndeps_noalias, kmp_depend_info_t *noalias_dep_list) if dependence | ||||
5145 | // list is not empty | ||||
5146 | llvm::Value *ThreadID = getThreadID(CGF, Loc); | ||||
5147 | llvm::Value *UpLoc = emitUpdateLocation(CGF, Loc); | ||||
5148 | llvm::Value *TaskArgs[] = { UpLoc, ThreadID, NewTask }; | ||||
5149 | llvm::Value *DepTaskArgs[7]; | ||||
5150 | if (!Data.Dependences.empty()) { | ||||
5151 | DepTaskArgs[0] = UpLoc; | ||||
5152 | DepTaskArgs[1] = ThreadID; | ||||
5153 | DepTaskArgs[2] = NewTask; | ||||
5154 | DepTaskArgs[3] = NumOfElements; | ||||
5155 | DepTaskArgs[4] = DependenciesArray.getPointer(); | ||||
5156 | DepTaskArgs[5] = CGF.Builder.getInt32(0); | ||||
5157 | DepTaskArgs[6] = llvm::ConstantPointerNull::get(CGF.VoidPtrTy); | ||||
5158 | } | ||||
5159 | auto &&ThenCodeGen = [this, &Data, TDBase, KmpTaskTQTyRD, &TaskArgs, | ||||
5160 | &DepTaskArgs](CodeGenFunction &CGF, PrePostActionTy &) { | ||||
5161 | if (!Data.Tied) { | ||||
5162 | auto PartIdFI = std::next(KmpTaskTQTyRD->field_begin(), KmpTaskTPartId); | ||||
5163 | LValue PartIdLVal = CGF.EmitLValueForField(TDBase, *PartIdFI); | ||||
5164 | CGF.EmitStoreOfScalar(CGF.Builder.getInt32(0), PartIdLVal); | ||||
5165 | } | ||||
5166 | if (!Data.Dependences.empty()) { | ||||
5167 | CGF.EmitRuntimeCall( | ||||
5168 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
5169 | CGM.getModule(), OMPRTL___kmpc_omp_task_with_deps), | ||||
5170 | DepTaskArgs); | ||||
5171 | } else { | ||||
5172 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
5173 | CGM.getModule(), OMPRTL___kmpc_omp_task), | ||||
5174 | TaskArgs); | ||||
5175 | } | ||||
5176 | // Check if parent region is untied and build return for untied task; | ||||
5177 | if (auto *Region = | ||||
5178 | dyn_cast_or_null<CGOpenMPRegionInfo>(CGF.CapturedStmtInfo)) | ||||
5179 | Region->emitUntiedSwitch(CGF); | ||||
5180 | }; | ||||
5181 | |||||
5182 | llvm::Value *DepWaitTaskArgs[6]; | ||||
5183 | if (!Data.Dependences.empty()) { | ||||
5184 | DepWaitTaskArgs[0] = UpLoc; | ||||
5185 | DepWaitTaskArgs[1] = ThreadID; | ||||
5186 | DepWaitTaskArgs[2] = NumOfElements; | ||||
5187 | DepWaitTaskArgs[3] = DependenciesArray.getPointer(); | ||||
5188 | DepWaitTaskArgs[4] = CGF.Builder.getInt32(0); | ||||
5189 | DepWaitTaskArgs[5] = llvm::ConstantPointerNull::get(CGF.VoidPtrTy); | ||||
5190 | } | ||||
5191 | auto &M = CGM.getModule(); | ||||
5192 | auto &&ElseCodeGen = [this, &M, &TaskArgs, ThreadID, NewTaskNewTaskTTy, | ||||
5193 | TaskEntry, &Data, &DepWaitTaskArgs, | ||||
5194 | Loc](CodeGenFunction &CGF, PrePostActionTy &) { | ||||
5195 | CodeGenFunction::RunCleanupsScope LocalScope(CGF); | ||||
5196 | // Build void __kmpc_omp_wait_deps(ident_t *, kmp_int32 gtid, | ||||
5197 | // kmp_int32 ndeps, kmp_depend_info_t *dep_list, kmp_int32 | ||||
5198 | // ndeps_noalias, kmp_depend_info_t *noalias_dep_list); if dependence info | ||||
5199 | // is specified. | ||||
5200 | if (!Data.Dependences.empty()) | ||||
5201 | CGF.EmitRuntimeCall( | ||||
5202 | OMPBuilder.getOrCreateRuntimeFunction(M, OMPRTL___kmpc_omp_wait_deps), | ||||
5203 | DepWaitTaskArgs); | ||||
5204 | // Call proxy_task_entry(gtid, new_task); | ||||
5205 | auto &&CodeGen = [TaskEntry, ThreadID, NewTaskNewTaskTTy, | ||||
5206 | Loc](CodeGenFunction &CGF, PrePostActionTy &Action) { | ||||
5207 | Action.Enter(CGF); | ||||
5208 | llvm::Value *OutlinedFnArgs[] = {ThreadID, NewTaskNewTaskTTy}; | ||||
5209 | CGF.CGM.getOpenMPRuntime().emitOutlinedFunctionCall(CGF, Loc, TaskEntry, | ||||
5210 | OutlinedFnArgs); | ||||
5211 | }; | ||||
5212 | |||||
5213 | // Build void __kmpc_omp_task_begin_if0(ident_t *, kmp_int32 gtid, | ||||
5214 | // kmp_task_t *new_task); | ||||
5215 | // Build void __kmpc_omp_task_complete_if0(ident_t *, kmp_int32 gtid, | ||||
5216 | // kmp_task_t *new_task); | ||||
5217 | RegionCodeGenTy RCG(CodeGen); | ||||
5218 | CommonActionTy Action(OMPBuilder.getOrCreateRuntimeFunction( | ||||
5219 | M, OMPRTL___kmpc_omp_task_begin_if0), | ||||
5220 | TaskArgs, | ||||
5221 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
5222 | M, OMPRTL___kmpc_omp_task_complete_if0), | ||||
5223 | TaskArgs); | ||||
5224 | RCG.setAction(Action); | ||||
5225 | RCG(CGF); | ||||
5226 | }; | ||||
5227 | |||||
5228 | if (IfCond) { | ||||
5229 | emitIfClause(CGF, IfCond, ThenCodeGen, ElseCodeGen); | ||||
5230 | } else { | ||||
5231 | RegionCodeGenTy ThenRCG(ThenCodeGen); | ||||
5232 | ThenRCG(CGF); | ||||
5233 | } | ||||
5234 | } | ||||
5235 | |||||
5236 | void CGOpenMPRuntime::emitTaskLoopCall(CodeGenFunction &CGF, SourceLocation Loc, | ||||
5237 | const OMPLoopDirective &D, | ||||
5238 | llvm::Function *TaskFunction, | ||||
5239 | QualType SharedsTy, Address Shareds, | ||||
5240 | const Expr *IfCond, | ||||
5241 | const OMPTaskDataTy &Data) { | ||||
5242 | if (!CGF.HaveInsertPoint()) | ||||
5243 | return; | ||||
5244 | TaskResultTy Result = | ||||
5245 | emitTaskInit(CGF, Loc, D, TaskFunction, SharedsTy, Shareds, Data); | ||||
5246 | // NOTE: routine and part_id fields are initialized by __kmpc_omp_task_alloc() | ||||
5247 | // libcall. | ||||
5248 | // Call to void __kmpc_taskloop(ident_t *loc, int gtid, kmp_task_t *task, int | ||||
5249 | // if_val, kmp_uint64 *lb, kmp_uint64 *ub, kmp_int64 st, int nogroup, int | ||||
5250 | // sched, kmp_uint64 grainsize, void *task_dup); | ||||
5251 | llvm::Value *ThreadID = getThreadID(CGF, Loc); | ||||
5252 | llvm::Value *UpLoc = emitUpdateLocation(CGF, Loc); | ||||
5253 | llvm::Value *IfVal; | ||||
5254 | if (IfCond) { | ||||
5255 | IfVal = CGF.Builder.CreateIntCast(CGF.EvaluateExprAsBool(IfCond), CGF.IntTy, | ||||
5256 | /*isSigned=*/true); | ||||
5257 | } else { | ||||
5258 | IfVal = llvm::ConstantInt::getSigned(CGF.IntTy, /*V=*/1); | ||||
5259 | } | ||||
5260 | |||||
5261 | LValue LBLVal = CGF.EmitLValueForField( | ||||
5262 | Result.TDBase, | ||||
5263 | *std::next(Result.KmpTaskTQTyRD->field_begin(), KmpTaskTLowerBound)); | ||||
5264 | const auto *LBVar = | ||||
5265 | cast<VarDecl>(cast<DeclRefExpr>(D.getLowerBoundVariable())->getDecl()); | ||||
5266 | CGF.EmitAnyExprToMem(LBVar->getInit(), LBLVal.getAddress(CGF), | ||||
5267 | LBLVal.getQuals(), | ||||
5268 | /*IsInitializer=*/true); | ||||
5269 | LValue UBLVal = CGF.EmitLValueForField( | ||||
5270 | Result.TDBase, | ||||
5271 | *std::next(Result.KmpTaskTQTyRD->field_begin(), KmpTaskTUpperBound)); | ||||
5272 | const auto *UBVar = | ||||
5273 | cast<VarDecl>(cast<DeclRefExpr>(D.getUpperBoundVariable())->getDecl()); | ||||
5274 | CGF.EmitAnyExprToMem(UBVar->getInit(), UBLVal.getAddress(CGF), | ||||
5275 | UBLVal.getQuals(), | ||||
5276 | /*IsInitializer=*/true); | ||||
5277 | LValue StLVal = CGF.EmitLValueForField( | ||||
5278 | Result.TDBase, | ||||
5279 | *std::next(Result.KmpTaskTQTyRD->field_begin(), KmpTaskTStride)); | ||||
5280 | const auto *StVar = | ||||
5281 | cast<VarDecl>(cast<DeclRefExpr>(D.getStrideVariable())->getDecl()); | ||||
5282 | CGF.EmitAnyExprToMem(StVar->getInit(), StLVal.getAddress(CGF), | ||||
5283 | StLVal.getQuals(), | ||||
5284 | /*IsInitializer=*/true); | ||||
5285 | // Store reductions address. | ||||
5286 | LValue RedLVal = CGF.EmitLValueForField( | ||||
5287 | Result.TDBase, | ||||
5288 | *std::next(Result.KmpTaskTQTyRD->field_begin(), KmpTaskTReductions)); | ||||
5289 | if (Data.Reductions) { | ||||
5290 | CGF.EmitStoreOfScalar(Data.Reductions, RedLVal); | ||||
5291 | } else { | ||||
5292 | CGF.EmitNullInitialization(RedLVal.getAddress(CGF), | ||||
5293 | CGF.getContext().VoidPtrTy); | ||||
5294 | } | ||||
5295 | enum { NoSchedule = 0, Grainsize = 1, NumTasks = 2 }; | ||||
5296 | llvm::Value *TaskArgs[] = { | ||||
5297 | UpLoc, | ||||
5298 | ThreadID, | ||||
5299 | Result.NewTask, | ||||
5300 | IfVal, | ||||
5301 | LBLVal.getPointer(CGF), | ||||
5302 | UBLVal.getPointer(CGF), | ||||
5303 | CGF.EmitLoadOfScalar(StLVal, Loc), | ||||
5304 | llvm::ConstantInt::getSigned( | ||||
5305 | CGF.IntTy, 1), // Always 1 because taskgroup emitted by the compiler | ||||
5306 | llvm::ConstantInt::getSigned( | ||||
5307 | CGF.IntTy, Data.Schedule.getPointer() | ||||
5308 | ? Data.Schedule.getInt() ? NumTasks : Grainsize | ||||
5309 | : NoSchedule), | ||||
5310 | Data.Schedule.getPointer() | ||||
5311 | ? CGF.Builder.CreateIntCast(Data.Schedule.getPointer(), CGF.Int64Ty, | ||||
5312 | /*isSigned=*/false) | ||||
5313 | : llvm::ConstantInt::get(CGF.Int64Ty, /*V=*/0), | ||||
5314 | Result.TaskDupFn ? CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
5315 | Result.TaskDupFn, CGF.VoidPtrTy) | ||||
5316 | : llvm::ConstantPointerNull::get(CGF.VoidPtrTy)}; | ||||
5317 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
5318 | CGM.getModule(), OMPRTL___kmpc_taskloop), | ||||
5319 | TaskArgs); | ||||
5320 | } | ||||
5321 | |||||
5322 | /// Emit reduction operation for each element of array (required for | ||||
5323 | /// array sections) LHS op = RHS. | ||||
5324 | /// \param Type Type of array. | ||||
5325 | /// \param LHSVar Variable on the left side of the reduction operation | ||||
5326 | /// (references element of array in original variable). | ||||
5327 | /// \param RHSVar Variable on the right side of the reduction operation | ||||
5328 | /// (references element of array in original variable). | ||||
5329 | /// \param RedOpGen Generator of reduction operation with use of LHSVar and | ||||
5330 | /// RHSVar. | ||||
5331 | static void EmitOMPAggregateReduction( | ||||
5332 | CodeGenFunction &CGF, QualType Type, const VarDecl *LHSVar, | ||||
5333 | const VarDecl *RHSVar, | ||||
5334 | const llvm::function_ref<void(CodeGenFunction &CGF, const Expr *, | ||||
5335 | const Expr *, const Expr *)> &RedOpGen, | ||||
5336 | const Expr *XExpr = nullptr, const Expr *EExpr = nullptr, | ||||
5337 | const Expr *UpExpr = nullptr) { | ||||
5338 | // Perform element-by-element initialization. | ||||
5339 | QualType ElementTy; | ||||
5340 | Address LHSAddr = CGF.GetAddrOfLocalVar(LHSVar); | ||||
5341 | Address RHSAddr = CGF.GetAddrOfLocalVar(RHSVar); | ||||
5342 | |||||
5343 | // Drill down to the base element type on both arrays. | ||||
5344 | const ArrayType *ArrayTy = Type->getAsArrayTypeUnsafe(); | ||||
5345 | llvm::Value *NumElements = CGF.emitArrayLength(ArrayTy, ElementTy, LHSAddr); | ||||
5346 | |||||
5347 | llvm::Value *RHSBegin = RHSAddr.getPointer(); | ||||
5348 | llvm::Value *LHSBegin = LHSAddr.getPointer(); | ||||
5349 | // Cast from pointer to array type to pointer to single element. | ||||
5350 | llvm::Value *LHSEnd = | ||||
5351 | CGF.Builder.CreateGEP(LHSAddr.getElementType(), LHSBegin, NumElements); | ||||
5352 | // The basic structure here is a while-do loop. | ||||
5353 | llvm::BasicBlock *BodyBB = CGF.createBasicBlock("omp.arraycpy.body"); | ||||
5354 | llvm::BasicBlock *DoneBB = CGF.createBasicBlock("omp.arraycpy.done"); | ||||
5355 | llvm::Value *IsEmpty = | ||||
5356 | CGF.Builder.CreateICmpEQ(LHSBegin, LHSEnd, "omp.arraycpy.isempty"); | ||||
5357 | CGF.Builder.CreateCondBr(IsEmpty, DoneBB, BodyBB); | ||||
5358 | |||||
5359 | // Enter the loop body, making that address the current address. | ||||
5360 | llvm::BasicBlock *EntryBB = CGF.Builder.GetInsertBlock(); | ||||
5361 | CGF.EmitBlock(BodyBB); | ||||
5362 | |||||
5363 | CharUnits ElementSize = CGF.getContext().getTypeSizeInChars(ElementTy); | ||||
5364 | |||||
5365 | llvm::PHINode *RHSElementPHI = CGF.Builder.CreatePHI( | ||||
5366 | RHSBegin->getType(), 2, "omp.arraycpy.srcElementPast"); | ||||
5367 | RHSElementPHI->addIncoming(RHSBegin, EntryBB); | ||||
5368 | Address RHSElementCurrent = | ||||
5369 | Address(RHSElementPHI, | ||||
5370 | RHSAddr.getAlignment().alignmentOfArrayElement(ElementSize)); | ||||
5371 | |||||
5372 | llvm::PHINode *LHSElementPHI = CGF.Builder.CreatePHI( | ||||
5373 | LHSBegin->getType(), 2, "omp.arraycpy.destElementPast"); | ||||
5374 | LHSElementPHI->addIncoming(LHSBegin, EntryBB); | ||||
5375 | Address LHSElementCurrent = | ||||
5376 | Address(LHSElementPHI, | ||||
5377 | LHSAddr.getAlignment().alignmentOfArrayElement(ElementSize)); | ||||
5378 | |||||
5379 | // Emit copy. | ||||
5380 | CodeGenFunction::OMPPrivateScope Scope(CGF); | ||||
5381 | Scope.addPrivate(LHSVar, [=]() { return LHSElementCurrent; }); | ||||
5382 | Scope.addPrivate(RHSVar, [=]() { return RHSElementCurrent; }); | ||||
5383 | Scope.Privatize(); | ||||
5384 | RedOpGen(CGF, XExpr, EExpr, UpExpr); | ||||
5385 | Scope.ForceCleanup(); | ||||
5386 | |||||
5387 | // Shift the address forward by one element. | ||||
5388 | llvm::Value *LHSElementNext = CGF.Builder.CreateConstGEP1_32( | ||||
5389 | LHSAddr.getElementType(), LHSElementPHI, /*Idx0=*/1, | ||||
5390 | "omp.arraycpy.dest.element"); | ||||
5391 | llvm::Value *RHSElementNext = CGF.Builder.CreateConstGEP1_32( | ||||
5392 | RHSAddr.getElementType(), RHSElementPHI, /*Idx0=*/1, | ||||
5393 | "omp.arraycpy.src.element"); | ||||
5394 | // Check whether we've reached the end. | ||||
5395 | llvm::Value *Done = | ||||
5396 | CGF.Builder.CreateICmpEQ(LHSElementNext, LHSEnd, "omp.arraycpy.done"); | ||||
5397 | CGF.Builder.CreateCondBr(Done, DoneBB, BodyBB); | ||||
5398 | LHSElementPHI->addIncoming(LHSElementNext, CGF.Builder.GetInsertBlock()); | ||||
5399 | RHSElementPHI->addIncoming(RHSElementNext, CGF.Builder.GetInsertBlock()); | ||||
5400 | |||||
5401 | // Done. | ||||
5402 | CGF.EmitBlock(DoneBB, /*IsFinished=*/true); | ||||
5403 | } | ||||
5404 | |||||
5405 | /// Emit reduction combiner. If the combiner is a simple expression emit it as | ||||
5406 | /// is, otherwise consider it as combiner of UDR decl and emit it as a call of | ||||
5407 | /// UDR combiner function. | ||||
5408 | static void emitReductionCombiner(CodeGenFunction &CGF, | ||||
5409 | const Expr *ReductionOp) { | ||||
5410 | if (const auto *CE = dyn_cast<CallExpr>(ReductionOp)) | ||||
5411 | if (const auto *OVE = dyn_cast<OpaqueValueExpr>(CE->getCallee())) | ||||
5412 | if (const auto *DRE = | ||||
5413 | dyn_cast<DeclRefExpr>(OVE->getSourceExpr()->IgnoreImpCasts())) | ||||
5414 | if (const auto *DRD = | ||||
5415 | dyn_cast<OMPDeclareReductionDecl>(DRE->getDecl())) { | ||||
5416 | std::pair<llvm::Function *, llvm::Function *> Reduction = | ||||
5417 | CGF.CGM.getOpenMPRuntime().getUserDefinedReduction(DRD); | ||||
5418 | RValue Func = RValue::get(Reduction.first); | ||||
5419 | CodeGenFunction::OpaqueValueMapping Map(CGF, OVE, Func); | ||||
5420 | CGF.EmitIgnoredExpr(ReductionOp); | ||||
5421 | return; | ||||
5422 | } | ||||
5423 | CGF.EmitIgnoredExpr(ReductionOp); | ||||
5424 | } | ||||
5425 | |||||
5426 | llvm::Function *CGOpenMPRuntime::emitReductionFunction( | ||||
5427 | SourceLocation Loc, llvm::Type *ArgsType, ArrayRef<const Expr *> Privates, | ||||
5428 | ArrayRef<const Expr *> LHSExprs, ArrayRef<const Expr *> RHSExprs, | ||||
5429 | ArrayRef<const Expr *> ReductionOps) { | ||||
5430 | ASTContext &C = CGM.getContext(); | ||||
5431 | |||||
5432 | // void reduction_func(void *LHSArg, void *RHSArg); | ||||
5433 | FunctionArgList Args; | ||||
5434 | ImplicitParamDecl LHSArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, C.VoidPtrTy, | ||||
5435 | ImplicitParamDecl::Other); | ||||
5436 | ImplicitParamDecl RHSArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, C.VoidPtrTy, | ||||
5437 | ImplicitParamDecl::Other); | ||||
5438 | Args.push_back(&LHSArg); | ||||
5439 | Args.push_back(&RHSArg); | ||||
5440 | const auto &CGFI = | ||||
5441 | CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, Args); | ||||
5442 | std::string Name = getName({"omp", "reduction", "reduction_func"}); | ||||
5443 | auto *Fn = llvm::Function::Create(CGM.getTypes().GetFunctionType(CGFI), | ||||
5444 | llvm::GlobalValue::InternalLinkage, Name, | ||||
5445 | &CGM.getModule()); | ||||
5446 | CGM.SetInternalFunctionAttributes(GlobalDecl(), Fn, CGFI); | ||||
5447 | Fn->setDoesNotRecurse(); | ||||
5448 | CodeGenFunction CGF(CGM); | ||||
5449 | CGF.StartFunction(GlobalDecl(), C.VoidTy, Fn, CGFI, Args, Loc, Loc); | ||||
5450 | |||||
5451 | // Dst = (void*[n])(LHSArg); | ||||
5452 | // Src = (void*[n])(RHSArg); | ||||
5453 | Address LHS(CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
5454 | CGF.Builder.CreateLoad(CGF.GetAddrOfLocalVar(&LHSArg)), | ||||
5455 | ArgsType), CGF.getPointerAlign()); | ||||
5456 | Address RHS(CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
5457 | CGF.Builder.CreateLoad(CGF.GetAddrOfLocalVar(&RHSArg)), | ||||
5458 | ArgsType), CGF.getPointerAlign()); | ||||
5459 | |||||
5460 | // ... | ||||
5461 | // *(Type<i>*)lhs[i] = RedOp<i>(*(Type<i>*)lhs[i], *(Type<i>*)rhs[i]); | ||||
5462 | // ... | ||||
5463 | CodeGenFunction::OMPPrivateScope Scope(CGF); | ||||
5464 | auto IPriv = Privates.begin(); | ||||
5465 | unsigned Idx = 0; | ||||
5466 | for (unsigned I = 0, E = ReductionOps.size(); I < E; ++I, ++IPriv, ++Idx) { | ||||
5467 | const auto *RHSVar = | ||||
5468 | cast<VarDecl>(cast<DeclRefExpr>(RHSExprs[I])->getDecl()); | ||||
5469 | Scope.addPrivate(RHSVar, [&CGF, RHS, Idx, RHSVar]() { | ||||
5470 | return emitAddrOfVarFromArray(CGF, RHS, Idx, RHSVar); | ||||
5471 | }); | ||||
5472 | const auto *LHSVar = | ||||
5473 | cast<VarDecl>(cast<DeclRefExpr>(LHSExprs[I])->getDecl()); | ||||
5474 | Scope.addPrivate(LHSVar, [&CGF, LHS, Idx, LHSVar]() { | ||||
5475 | return emitAddrOfVarFromArray(CGF, LHS, Idx, LHSVar); | ||||
5476 | }); | ||||
5477 | QualType PrivTy = (*IPriv)->getType(); | ||||
5478 | if (PrivTy->isVariablyModifiedType()) { | ||||
5479 | // Get array size and emit VLA type. | ||||
5480 | ++Idx; | ||||
5481 | Address Elem = CGF.Builder.CreateConstArrayGEP(LHS, Idx); | ||||
5482 | llvm::Value *Ptr = CGF.Builder.CreateLoad(Elem); | ||||
5483 | const VariableArrayType *VLA = | ||||
5484 | CGF.getContext().getAsVariableArrayType(PrivTy); | ||||
5485 | const auto *OVE = cast<OpaqueValueExpr>(VLA->getSizeExpr()); | ||||
5486 | CodeGenFunction::OpaqueValueMapping OpaqueMap( | ||||
5487 | CGF, OVE, RValue::get(CGF.Builder.CreatePtrToInt(Ptr, CGF.SizeTy))); | ||||
5488 | CGF.EmitVariablyModifiedType(PrivTy); | ||||
5489 | } | ||||
5490 | } | ||||
5491 | Scope.Privatize(); | ||||
5492 | IPriv = Privates.begin(); | ||||
5493 | auto ILHS = LHSExprs.begin(); | ||||
5494 | auto IRHS = RHSExprs.begin(); | ||||
5495 | for (const Expr *E : ReductionOps) { | ||||
5496 | if ((*IPriv)->getType()->isArrayType()) { | ||||
5497 | // Emit reduction for array section. | ||||
5498 | const auto *LHSVar = cast<VarDecl>(cast<DeclRefExpr>(*ILHS)->getDecl()); | ||||
5499 | const auto *RHSVar = cast<VarDecl>(cast<DeclRefExpr>(*IRHS)->getDecl()); | ||||
5500 | EmitOMPAggregateReduction( | ||||
5501 | CGF, (*IPriv)->getType(), LHSVar, RHSVar, | ||||
5502 | [=](CodeGenFunction &CGF, const Expr *, const Expr *, const Expr *) { | ||||
5503 | emitReductionCombiner(CGF, E); | ||||
5504 | }); | ||||
5505 | } else { | ||||
5506 | // Emit reduction for array subscript or single variable. | ||||
5507 | emitReductionCombiner(CGF, E); | ||||
5508 | } | ||||
5509 | ++IPriv; | ||||
5510 | ++ILHS; | ||||
5511 | ++IRHS; | ||||
5512 | } | ||||
5513 | Scope.ForceCleanup(); | ||||
5514 | CGF.FinishFunction(); | ||||
5515 | return Fn; | ||||
5516 | } | ||||
5517 | |||||
5518 | void CGOpenMPRuntime::emitSingleReductionCombiner(CodeGenFunction &CGF, | ||||
5519 | const Expr *ReductionOp, | ||||
5520 | const Expr *PrivateRef, | ||||
5521 | const DeclRefExpr *LHS, | ||||
5522 | const DeclRefExpr *RHS) { | ||||
5523 | if (PrivateRef->getType()->isArrayType()) { | ||||
5524 | // Emit reduction for array section. | ||||
5525 | const auto *LHSVar = cast<VarDecl>(LHS->getDecl()); | ||||
5526 | const auto *RHSVar = cast<VarDecl>(RHS->getDecl()); | ||||
5527 | EmitOMPAggregateReduction( | ||||
5528 | CGF, PrivateRef->getType(), LHSVar, RHSVar, | ||||
5529 | [=](CodeGenFunction &CGF, const Expr *, const Expr *, const Expr *) { | ||||
5530 | emitReductionCombiner(CGF, ReductionOp); | ||||
5531 | }); | ||||
5532 | } else { | ||||
5533 | // Emit reduction for array subscript or single variable. | ||||
5534 | emitReductionCombiner(CGF, ReductionOp); | ||||
5535 | } | ||||
5536 | } | ||||
5537 | |||||
5538 | void CGOpenMPRuntime::emitReduction(CodeGenFunction &CGF, SourceLocation Loc, | ||||
5539 | ArrayRef<const Expr *> Privates, | ||||
5540 | ArrayRef<const Expr *> LHSExprs, | ||||
5541 | ArrayRef<const Expr *> RHSExprs, | ||||
5542 | ArrayRef<const Expr *> ReductionOps, | ||||
5543 | ReductionOptionsTy Options) { | ||||
5544 | if (!CGF.HaveInsertPoint()) | ||||
5545 | return; | ||||
5546 | |||||
5547 | bool WithNowait = Options.WithNowait; | ||||
5548 | bool SimpleReduction = Options.SimpleReduction; | ||||
5549 | |||||
5550 | // Next code should be emitted for reduction: | ||||
5551 | // | ||||
5552 | // static kmp_critical_name lock = { 0 }; | ||||
5553 | // | ||||
5554 | // void reduce_func(void *lhs[<n>], void *rhs[<n>]) { | ||||
5555 | // *(Type0*)lhs[0] = ReductionOperation0(*(Type0*)lhs[0], *(Type0*)rhs[0]); | ||||
5556 | // ... | ||||
5557 | // *(Type<n>-1*)lhs[<n>-1] = ReductionOperation<n>-1(*(Type<n>-1*)lhs[<n>-1], | ||||
5558 | // *(Type<n>-1*)rhs[<n>-1]); | ||||
5559 | // } | ||||
5560 | // | ||||
5561 | // ... | ||||
5562 | // void *RedList[<n>] = {&<RHSExprs>[0], ..., &<RHSExprs>[<n>-1]}; | ||||
5563 | // switch (__kmpc_reduce{_nowait}(<loc>, <gtid>, <n>, sizeof(RedList), | ||||
5564 | // RedList, reduce_func, &<lock>)) { | ||||
5565 | // case 1: | ||||
5566 | // ... | ||||
5567 | // <LHSExprs>[i] = RedOp<i>(*<LHSExprs>[i], *<RHSExprs>[i]); | ||||
5568 | // ... | ||||
5569 | // __kmpc_end_reduce{_nowait}(<loc>, <gtid>, &<lock>); | ||||
5570 | // break; | ||||
5571 | // case 2: | ||||
5572 | // ... | ||||
5573 | // Atomic(<LHSExprs>[i] = RedOp<i>(*<LHSExprs>[i], *<RHSExprs>[i])); | ||||
5574 | // ... | ||||
5575 | // [__kmpc_end_reduce(<loc>, <gtid>, &<lock>);] | ||||
5576 | // break; | ||||
5577 | // default:; | ||||
5578 | // } | ||||
5579 | // | ||||
5580 | // if SimpleReduction is true, only the next code is generated: | ||||
5581 | // ... | ||||
5582 | // <LHSExprs>[i] = RedOp<i>(*<LHSExprs>[i], *<RHSExprs>[i]); | ||||
5583 | // ... | ||||
5584 | |||||
5585 | ASTContext &C = CGM.getContext(); | ||||
5586 | |||||
5587 | if (SimpleReduction) { | ||||
5588 | CodeGenFunction::RunCleanupsScope Scope(CGF); | ||||
5589 | auto IPriv = Privates.begin(); | ||||
5590 | auto ILHS = LHSExprs.begin(); | ||||
5591 | auto IRHS = RHSExprs.begin(); | ||||
5592 | for (const Expr *E : ReductionOps) { | ||||
5593 | emitSingleReductionCombiner(CGF, E, *IPriv, cast<DeclRefExpr>(*ILHS), | ||||
5594 | cast<DeclRefExpr>(*IRHS)); | ||||
5595 | ++IPriv; | ||||
5596 | ++ILHS; | ||||
5597 | ++IRHS; | ||||
5598 | } | ||||
5599 | return; | ||||
5600 | } | ||||
5601 | |||||
5602 | // 1. Build a list of reduction variables. | ||||
5603 | // void *RedList[<n>] = {<ReductionVars>[0], ..., <ReductionVars>[<n>-1]}; | ||||
5604 | auto Size = RHSExprs.size(); | ||||
5605 | for (const Expr *E : Privates) { | ||||
5606 | if (E->getType()->isVariablyModifiedType()) | ||||
5607 | // Reserve place for array size. | ||||
5608 | ++Size; | ||||
5609 | } | ||||
5610 | llvm::APInt ArraySize(/*unsigned int numBits=*/32, Size); | ||||
5611 | QualType ReductionArrayTy = | ||||
5612 | C.getConstantArrayType(C.VoidPtrTy, ArraySize, nullptr, ArrayType::Normal, | ||||
5613 | /*IndexTypeQuals=*/0); | ||||
5614 | Address ReductionList = | ||||
5615 | CGF.CreateMemTemp(ReductionArrayTy, ".omp.reduction.red_list"); | ||||
5616 | auto IPriv = Privates.begin(); | ||||
5617 | unsigned Idx = 0; | ||||
5618 | for (unsigned I = 0, E = RHSExprs.size(); I < E; ++I, ++IPriv, ++Idx) { | ||||
5619 | Address Elem = CGF.Builder.CreateConstArrayGEP(ReductionList, Idx); | ||||
5620 | CGF.Builder.CreateStore( | ||||
5621 | CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
5622 | CGF.EmitLValue(RHSExprs[I]).getPointer(CGF), CGF.VoidPtrTy), | ||||
5623 | Elem); | ||||
5624 | if ((*IPriv)->getType()->isVariablyModifiedType()) { | ||||
5625 | // Store array size. | ||||
5626 | ++Idx; | ||||
5627 | Elem = CGF.Builder.CreateConstArrayGEP(ReductionList, Idx); | ||||
5628 | llvm::Value *Size = CGF.Builder.CreateIntCast( | ||||
5629 | CGF.getVLASize( | ||||
5630 | CGF.getContext().getAsVariableArrayType((*IPriv)->getType())) | ||||
5631 | .NumElts, | ||||
5632 | CGF.SizeTy, /*isSigned=*/false); | ||||
5633 | CGF.Builder.CreateStore(CGF.Builder.CreateIntToPtr(Size, CGF.VoidPtrTy), | ||||
5634 | Elem); | ||||
5635 | } | ||||
5636 | } | ||||
5637 | |||||
5638 | // 2. Emit reduce_func(). | ||||
5639 | llvm::Function *ReductionFn = emitReductionFunction( | ||||
5640 | Loc, CGF.ConvertTypeForMem(ReductionArrayTy)->getPointerTo(), Privates, | ||||
5641 | LHSExprs, RHSExprs, ReductionOps); | ||||
5642 | |||||
5643 | // 3. Create static kmp_critical_name lock = { 0 }; | ||||
5644 | std::string Name = getName({"reduction"}); | ||||
5645 | llvm::Value *Lock = getCriticalRegionLock(Name); | ||||
5646 | |||||
5647 | // 4. Build res = __kmpc_reduce{_nowait}(<loc>, <gtid>, <n>, sizeof(RedList), | ||||
5648 | // RedList, reduce_func, &<lock>); | ||||
5649 | llvm::Value *IdentTLoc = emitUpdateLocation(CGF, Loc, OMP_ATOMIC_REDUCE); | ||||
5650 | llvm::Value *ThreadId = getThreadID(CGF, Loc); | ||||
5651 | llvm::Value *ReductionArrayTySize = CGF.getTypeSize(ReductionArrayTy); | ||||
5652 | llvm::Value *RL = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
5653 | ReductionList.getPointer(), CGF.VoidPtrTy); | ||||
5654 | llvm::Value *Args[] = { | ||||
5655 | IdentTLoc, // ident_t *<loc> | ||||
5656 | ThreadId, // i32 <gtid> | ||||
5657 | CGF.Builder.getInt32(RHSExprs.size()), // i32 <n> | ||||
5658 | ReductionArrayTySize, // size_type sizeof(RedList) | ||||
5659 | RL, // void *RedList | ||||
5660 | ReductionFn, // void (*) (void *, void *) <reduce_func> | ||||
5661 | Lock // kmp_critical_name *&<lock> | ||||
5662 | }; | ||||
5663 | llvm::Value *Res = CGF.EmitRuntimeCall( | ||||
5664 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
5665 | CGM.getModule(), | ||||
5666 | WithNowait ? OMPRTL___kmpc_reduce_nowait : OMPRTL___kmpc_reduce), | ||||
5667 | Args); | ||||
5668 | |||||
5669 | // 5. Build switch(res) | ||||
5670 | llvm::BasicBlock *DefaultBB = CGF.createBasicBlock(".omp.reduction.default"); | ||||
5671 | llvm::SwitchInst *SwInst = | ||||
5672 | CGF.Builder.CreateSwitch(Res, DefaultBB, /*NumCases=*/2); | ||||
5673 | |||||
5674 | // 6. Build case 1: | ||||
5675 | // ... | ||||
5676 | // <LHSExprs>[i] = RedOp<i>(*<LHSExprs>[i], *<RHSExprs>[i]); | ||||
5677 | // ... | ||||
5678 | // __kmpc_end_reduce{_nowait}(<loc>, <gtid>, &<lock>); | ||||
5679 | // break; | ||||
5680 | llvm::BasicBlock *Case1BB = CGF.createBasicBlock(".omp.reduction.case1"); | ||||
5681 | SwInst->addCase(CGF.Builder.getInt32(1), Case1BB); | ||||
5682 | CGF.EmitBlock(Case1BB); | ||||
5683 | |||||
5684 | // Add emission of __kmpc_end_reduce{_nowait}(<loc>, <gtid>, &<lock>); | ||||
5685 | llvm::Value *EndArgs[] = { | ||||
5686 | IdentTLoc, // ident_t *<loc> | ||||
5687 | ThreadId, // i32 <gtid> | ||||
5688 | Lock // kmp_critical_name *&<lock> | ||||
5689 | }; | ||||
5690 | auto &&CodeGen = [Privates, LHSExprs, RHSExprs, ReductionOps]( | ||||
5691 | CodeGenFunction &CGF, PrePostActionTy &Action) { | ||||
5692 | CGOpenMPRuntime &RT = CGF.CGM.getOpenMPRuntime(); | ||||
5693 | auto IPriv = Privates.begin(); | ||||
5694 | auto ILHS = LHSExprs.begin(); | ||||
5695 | auto IRHS = RHSExprs.begin(); | ||||
5696 | for (const Expr *E : ReductionOps) { | ||||
5697 | RT.emitSingleReductionCombiner(CGF, E, *IPriv, cast<DeclRefExpr>(*ILHS), | ||||
5698 | cast<DeclRefExpr>(*IRHS)); | ||||
5699 | ++IPriv; | ||||
5700 | ++ILHS; | ||||
5701 | ++IRHS; | ||||
5702 | } | ||||
5703 | }; | ||||
5704 | RegionCodeGenTy RCG(CodeGen); | ||||
5705 | CommonActionTy Action( | ||||
5706 | nullptr, llvm::None, | ||||
5707 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
5708 | CGM.getModule(), WithNowait ? OMPRTL___kmpc_end_reduce_nowait | ||||
5709 | : OMPRTL___kmpc_end_reduce), | ||||
5710 | EndArgs); | ||||
5711 | RCG.setAction(Action); | ||||
5712 | RCG(CGF); | ||||
5713 | |||||
5714 | CGF.EmitBranch(DefaultBB); | ||||
5715 | |||||
5716 | // 7. Build case 2: | ||||
5717 | // ... | ||||
5718 | // Atomic(<LHSExprs>[i] = RedOp<i>(*<LHSExprs>[i], *<RHSExprs>[i])); | ||||
5719 | // ... | ||||
5720 | // break; | ||||
5721 | llvm::BasicBlock *Case2BB = CGF.createBasicBlock(".omp.reduction.case2"); | ||||
5722 | SwInst->addCase(CGF.Builder.getInt32(2), Case2BB); | ||||
5723 | CGF.EmitBlock(Case2BB); | ||||
5724 | |||||
5725 | auto &&AtomicCodeGen = [Loc, Privates, LHSExprs, RHSExprs, ReductionOps]( | ||||
5726 | CodeGenFunction &CGF, PrePostActionTy &Action) { | ||||
5727 | auto ILHS = LHSExprs.begin(); | ||||
5728 | auto IRHS = RHSExprs.begin(); | ||||
5729 | auto IPriv = Privates.begin(); | ||||
5730 | for (const Expr *E : ReductionOps) { | ||||
5731 | const Expr *XExpr = nullptr; | ||||
5732 | const Expr *EExpr = nullptr; | ||||
5733 | const Expr *UpExpr = nullptr; | ||||
5734 | BinaryOperatorKind BO = BO_Comma; | ||||
5735 | if (const auto *BO = dyn_cast<BinaryOperator>(E)) { | ||||
5736 | if (BO->getOpcode() == BO_Assign) { | ||||
5737 | XExpr = BO->getLHS(); | ||||
5738 | UpExpr = BO->getRHS(); | ||||
5739 | } | ||||
5740 | } | ||||
5741 | // Try to emit update expression as a simple atomic. | ||||
5742 | const Expr *RHSExpr = UpExpr; | ||||
5743 | if (RHSExpr) { | ||||
5744 | // Analyze RHS part of the whole expression. | ||||
5745 | if (const auto *ACO = dyn_cast<AbstractConditionalOperator>( | ||||
5746 | RHSExpr->IgnoreParenImpCasts())) { | ||||
5747 | // If this is a conditional operator, analyze its condition for | ||||
5748 | // min/max reduction operator. | ||||
5749 | RHSExpr = ACO->getCond(); | ||||
5750 | } | ||||
5751 | if (const auto *BORHS = | ||||
5752 | dyn_cast<BinaryOperator>(RHSExpr->IgnoreParenImpCasts())) { | ||||
5753 | EExpr = BORHS->getRHS(); | ||||
5754 | BO = BORHS->getOpcode(); | ||||
5755 | } | ||||
5756 | } | ||||
5757 | if (XExpr) { | ||||
5758 | const auto *VD = cast<VarDecl>(cast<DeclRefExpr>(*ILHS)->getDecl()); | ||||
5759 | auto &&AtomicRedGen = [BO, VD, | ||||
5760 | Loc](CodeGenFunction &CGF, const Expr *XExpr, | ||||
5761 | const Expr *EExpr, const Expr *UpExpr) { | ||||
5762 | LValue X = CGF.EmitLValue(XExpr); | ||||
5763 | RValue E; | ||||
5764 | if (EExpr) | ||||
5765 | E = CGF.EmitAnyExpr(EExpr); | ||||
5766 | CGF.EmitOMPAtomicSimpleUpdateExpr( | ||||
5767 | X, E, BO, /*IsXLHSInRHSPart=*/true, | ||||
5768 | llvm::AtomicOrdering::Monotonic, Loc, | ||||
5769 | [&CGF, UpExpr, VD, Loc](RValue XRValue) { | ||||
5770 | CodeGenFunction::OMPPrivateScope PrivateScope(CGF); | ||||
5771 | PrivateScope.addPrivate( | ||||
5772 | VD, [&CGF, VD, XRValue, Loc]() { | ||||
5773 | Address LHSTemp = CGF.CreateMemTemp(VD->getType()); | ||||
5774 | CGF.emitOMPSimpleStore( | ||||
5775 | CGF.MakeAddrLValue(LHSTemp, VD->getType()), XRValue, | ||||
5776 | VD->getType().getNonReferenceType(), Loc); | ||||
5777 | return LHSTemp; | ||||
5778 | }); | ||||
5779 | (void)PrivateScope.Privatize(); | ||||
5780 | return CGF.EmitAnyExpr(UpExpr); | ||||
5781 | }); | ||||
5782 | }; | ||||
5783 | if ((*IPriv)->getType()->isArrayType()) { | ||||
5784 | // Emit atomic reduction for array section. | ||||
5785 | const auto *RHSVar = | ||||
5786 | cast<VarDecl>(cast<DeclRefExpr>(*IRHS)->getDecl()); | ||||
5787 | EmitOMPAggregateReduction(CGF, (*IPriv)->getType(), VD, RHSVar, | ||||
5788 | AtomicRedGen, XExpr, EExpr, UpExpr); | ||||
5789 | } else { | ||||
5790 | // Emit atomic reduction for array subscript or single variable. | ||||
5791 | AtomicRedGen(CGF, XExpr, EExpr, UpExpr); | ||||
5792 | } | ||||
5793 | } else { | ||||
5794 | // Emit as a critical region. | ||||
5795 | auto &&CritRedGen = [E, Loc](CodeGenFunction &CGF, const Expr *, | ||||
5796 | const Expr *, const Expr *) { | ||||
5797 | CGOpenMPRuntime &RT = CGF.CGM.getOpenMPRuntime(); | ||||
5798 | std::string Name = RT.getName({"atomic_reduction"}); | ||||
5799 | RT.emitCriticalRegion( | ||||
5800 | CGF, Name, | ||||
5801 | [=](CodeGenFunction &CGF, PrePostActionTy &Action) { | ||||
5802 | Action.Enter(CGF); | ||||
5803 | emitReductionCombiner(CGF, E); | ||||
5804 | }, | ||||
5805 | Loc); | ||||
5806 | }; | ||||
5807 | if ((*IPriv)->getType()->isArrayType()) { | ||||
5808 | const auto *LHSVar = | ||||
5809 | cast<VarDecl>(cast<DeclRefExpr>(*ILHS)->getDecl()); | ||||
5810 | const auto *RHSVar = | ||||
5811 | cast<VarDecl>(cast<DeclRefExpr>(*IRHS)->getDecl()); | ||||
5812 | EmitOMPAggregateReduction(CGF, (*IPriv)->getType(), LHSVar, RHSVar, | ||||
5813 | CritRedGen); | ||||
5814 | } else { | ||||
5815 | CritRedGen(CGF, nullptr, nullptr, nullptr); | ||||
5816 | } | ||||
5817 | } | ||||
5818 | ++ILHS; | ||||
5819 | ++IRHS; | ||||
5820 | ++IPriv; | ||||
5821 | } | ||||
5822 | }; | ||||
5823 | RegionCodeGenTy AtomicRCG(AtomicCodeGen); | ||||
5824 | if (!WithNowait) { | ||||
5825 | // Add emission of __kmpc_end_reduce(<loc>, <gtid>, &<lock>); | ||||
5826 | llvm::Value *EndArgs[] = { | ||||
5827 | IdentTLoc, // ident_t *<loc> | ||||
5828 | ThreadId, // i32 <gtid> | ||||
5829 | Lock // kmp_critical_name *&<lock> | ||||
5830 | }; | ||||
5831 | CommonActionTy Action(nullptr, llvm::None, | ||||
5832 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
5833 | CGM.getModule(), OMPRTL___kmpc_end_reduce), | ||||
5834 | EndArgs); | ||||
5835 | AtomicRCG.setAction(Action); | ||||
5836 | AtomicRCG(CGF); | ||||
5837 | } else { | ||||
5838 | AtomicRCG(CGF); | ||||
5839 | } | ||||
5840 | |||||
5841 | CGF.EmitBranch(DefaultBB); | ||||
5842 | CGF.EmitBlock(DefaultBB, /*IsFinished=*/true); | ||||
5843 | } | ||||
5844 | |||||
5845 | /// Generates unique name for artificial threadprivate variables. | ||||
5846 | /// Format is: <Prefix> "." <Decl_mangled_name> "_" "<Decl_start_loc_raw_enc>" | ||||
5847 | static std::string generateUniqueName(CodeGenModule &CGM, StringRef Prefix, | ||||
5848 | const Expr *Ref) { | ||||
5849 | SmallString<256> Buffer; | ||||
5850 | llvm::raw_svector_ostream Out(Buffer); | ||||
5851 | const clang::DeclRefExpr *DE; | ||||
5852 | const VarDecl *D = ::getBaseDecl(Ref, DE); | ||||
5853 | if (!D) | ||||
5854 | D = cast<VarDecl>(cast<DeclRefExpr>(Ref)->getDecl()); | ||||
5855 | D = D->getCanonicalDecl(); | ||||
5856 | std::string Name = CGM.getOpenMPRuntime().getName( | ||||
5857 | {D->isLocalVarDeclOrParm() ? D->getName() : CGM.getMangledName(D)}); | ||||
5858 | Out << Prefix << Name << "_" | ||||
5859 | << D->getCanonicalDecl()->getBeginLoc().getRawEncoding(); | ||||
5860 | return std::string(Out.str()); | ||||
5861 | } | ||||
5862 | |||||
5863 | /// Emits reduction initializer function: | ||||
5864 | /// \code | ||||
5865 | /// void @.red_init(void* %arg, void* %orig) { | ||||
5866 | /// %0 = bitcast void* %arg to <type>* | ||||
5867 | /// store <type> <init>, <type>* %0 | ||||
5868 | /// ret void | ||||
5869 | /// } | ||||
5870 | /// \endcode | ||||
5871 | static llvm::Value *emitReduceInitFunction(CodeGenModule &CGM, | ||||
5872 | SourceLocation Loc, | ||||
5873 | ReductionCodeGen &RCG, unsigned N) { | ||||
5874 | ASTContext &C = CGM.getContext(); | ||||
5875 | QualType VoidPtrTy = C.VoidPtrTy; | ||||
5876 | VoidPtrTy.addRestrict(); | ||||
5877 | FunctionArgList Args; | ||||
5878 | ImplicitParamDecl Param(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, VoidPtrTy, | ||||
5879 | ImplicitParamDecl::Other); | ||||
5880 | ImplicitParamDecl ParamOrig(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, VoidPtrTy, | ||||
5881 | ImplicitParamDecl::Other); | ||||
5882 | Args.emplace_back(&Param); | ||||
5883 | Args.emplace_back(&ParamOrig); | ||||
5884 | const auto &FnInfo = | ||||
5885 | CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, Args); | ||||
5886 | llvm::FunctionType *FnTy = CGM.getTypes().GetFunctionType(FnInfo); | ||||
5887 | std::string Name = CGM.getOpenMPRuntime().getName({"red_init", ""}); | ||||
5888 | auto *Fn = llvm::Function::Create(FnTy, llvm::GlobalValue::InternalLinkage, | ||||
5889 | Name, &CGM.getModule()); | ||||
5890 | CGM.SetInternalFunctionAttributes(GlobalDecl(), Fn, FnInfo); | ||||
5891 | Fn->setDoesNotRecurse(); | ||||
5892 | CodeGenFunction CGF(CGM); | ||||
5893 | CGF.StartFunction(GlobalDecl(), C.VoidTy, Fn, FnInfo, Args, Loc, Loc); | ||||
5894 | Address PrivateAddr = CGF.EmitLoadOfPointer( | ||||
5895 | CGF.GetAddrOfLocalVar(&Param), | ||||
5896 | C.getPointerType(C.VoidPtrTy).castAs<PointerType>()); | ||||
5897 | llvm::Value *Size = nullptr; | ||||
5898 | // If the size of the reduction item is non-constant, load it from global | ||||
5899 | // threadprivate variable. | ||||
5900 | if (RCG.getSizes(N).second) { | ||||
5901 | Address SizeAddr = CGM.getOpenMPRuntime().getAddrOfArtificialThreadPrivate( | ||||
5902 | CGF, CGM.getContext().getSizeType(), | ||||
5903 | generateUniqueName(CGM, "reduction_size", RCG.getRefExpr(N))); | ||||
5904 | Size = CGF.EmitLoadOfScalar(SizeAddr, /*Volatile=*/false, | ||||
5905 | CGM.getContext().getSizeType(), Loc); | ||||
5906 | } | ||||
5907 | RCG.emitAggregateType(CGF, N, Size); | ||||
5908 | LValue OrigLVal; | ||||
5909 | // If initializer uses initializer from declare reduction construct, emit a | ||||
5910 | // pointer to the address of the original reduction item (reuired by reduction | ||||
5911 | // initializer) | ||||
5912 | if (RCG.usesReductionInitializer(N)) { | ||||
5913 | Address SharedAddr = CGF.GetAddrOfLocalVar(&ParamOrig); | ||||
5914 | SharedAddr = CGF.EmitLoadOfPointer( | ||||
5915 | SharedAddr, | ||||
5916 | CGM.getContext().VoidPtrTy.castAs<PointerType>()->getTypePtr()); | ||||
5917 | OrigLVal = CGF.MakeAddrLValue(SharedAddr, CGM.getContext().VoidPtrTy); | ||||
5918 | } else { | ||||
5919 | OrigLVal = CGF.MakeNaturalAlignAddrLValue( | ||||
5920 | llvm::ConstantPointerNull::get(CGM.VoidPtrTy), | ||||
5921 | CGM.getContext().VoidPtrTy); | ||||
5922 | } | ||||
5923 | // Emit the initializer: | ||||
5924 | // %0 = bitcast void* %arg to <type>* | ||||
5925 | // store <type> <init>, <type>* %0 | ||||
5926 | RCG.emitInitialization(CGF, N, PrivateAddr, OrigLVal, | ||||
5927 | [](CodeGenFunction &) { return false; }); | ||||
5928 | CGF.FinishFunction(); | ||||
5929 | return Fn; | ||||
5930 | } | ||||
5931 | |||||
5932 | /// Emits reduction combiner function: | ||||
5933 | /// \code | ||||
5934 | /// void @.red_comb(void* %arg0, void* %arg1) { | ||||
5935 | /// %lhs = bitcast void* %arg0 to <type>* | ||||
5936 | /// %rhs = bitcast void* %arg1 to <type>* | ||||
5937 | /// %2 = <ReductionOp>(<type>* %lhs, <type>* %rhs) | ||||
5938 | /// store <type> %2, <type>* %lhs | ||||
5939 | /// ret void | ||||
5940 | /// } | ||||
5941 | /// \endcode | ||||
5942 | static llvm::Value *emitReduceCombFunction(CodeGenModule &CGM, | ||||
5943 | SourceLocation Loc, | ||||
5944 | ReductionCodeGen &RCG, unsigned N, | ||||
5945 | const Expr *ReductionOp, | ||||
5946 | const Expr *LHS, const Expr *RHS, | ||||
5947 | const Expr *PrivateRef) { | ||||
5948 | ASTContext &C = CGM.getContext(); | ||||
5949 | const auto *LHSVD = cast<VarDecl>(cast<DeclRefExpr>(LHS)->getDecl()); | ||||
5950 | const auto *RHSVD = cast<VarDecl>(cast<DeclRefExpr>(RHS)->getDecl()); | ||||
5951 | FunctionArgList Args; | ||||
5952 | ImplicitParamDecl ParamInOut(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, | ||||
5953 | C.VoidPtrTy, ImplicitParamDecl::Other); | ||||
5954 | ImplicitParamDecl ParamIn(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, C.VoidPtrTy, | ||||
5955 | ImplicitParamDecl::Other); | ||||
5956 | Args.emplace_back(&ParamInOut); | ||||
5957 | Args.emplace_back(&ParamIn); | ||||
5958 | const auto &FnInfo = | ||||
5959 | CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, Args); | ||||
5960 | llvm::FunctionType *FnTy = CGM.getTypes().GetFunctionType(FnInfo); | ||||
5961 | std::string Name = CGM.getOpenMPRuntime().getName({"red_comb", ""}); | ||||
5962 | auto *Fn = llvm::Function::Create(FnTy, llvm::GlobalValue::InternalLinkage, | ||||
5963 | Name, &CGM.getModule()); | ||||
5964 | CGM.SetInternalFunctionAttributes(GlobalDecl(), Fn, FnInfo); | ||||
5965 | Fn->setDoesNotRecurse(); | ||||
5966 | CodeGenFunction CGF(CGM); | ||||
5967 | CGF.StartFunction(GlobalDecl(), C.VoidTy, Fn, FnInfo, Args, Loc, Loc); | ||||
5968 | llvm::Value *Size = nullptr; | ||||
5969 | // If the size of the reduction item is non-constant, load it from global | ||||
5970 | // threadprivate variable. | ||||
5971 | if (RCG.getSizes(N).second) { | ||||
5972 | Address SizeAddr = CGM.getOpenMPRuntime().getAddrOfArtificialThreadPrivate( | ||||
5973 | CGF, CGM.getContext().getSizeType(), | ||||
5974 | generateUniqueName(CGM, "reduction_size", RCG.getRefExpr(N))); | ||||
5975 | Size = CGF.EmitLoadOfScalar(SizeAddr, /*Volatile=*/false, | ||||
5976 | CGM.getContext().getSizeType(), Loc); | ||||
5977 | } | ||||
5978 | RCG.emitAggregateType(CGF, N, Size); | ||||
5979 | // Remap lhs and rhs variables to the addresses of the function arguments. | ||||
5980 | // %lhs = bitcast void* %arg0 to <type>* | ||||
5981 | // %rhs = bitcast void* %arg1 to <type>* | ||||
5982 | CodeGenFunction::OMPPrivateScope PrivateScope(CGF); | ||||
5983 | PrivateScope.addPrivate(LHSVD, [&C, &CGF, &ParamInOut, LHSVD]() { | ||||
5984 | // Pull out the pointer to the variable. | ||||
5985 | Address PtrAddr = CGF.EmitLoadOfPointer( | ||||
5986 | CGF.GetAddrOfLocalVar(&ParamInOut), | ||||
5987 | C.getPointerType(C.VoidPtrTy).castAs<PointerType>()); | ||||
5988 | return CGF.Builder.CreateElementBitCast( | ||||
5989 | PtrAddr, CGF.ConvertTypeForMem(LHSVD->getType())); | ||||
5990 | }); | ||||
5991 | PrivateScope.addPrivate(RHSVD, [&C, &CGF, &ParamIn, RHSVD]() { | ||||
5992 | // Pull out the pointer to the variable. | ||||
5993 | Address PtrAddr = CGF.EmitLoadOfPointer( | ||||
5994 | CGF.GetAddrOfLocalVar(&ParamIn), | ||||
5995 | C.getPointerType(C.VoidPtrTy).castAs<PointerType>()); | ||||
5996 | return CGF.Builder.CreateElementBitCast( | ||||
5997 | PtrAddr, CGF.ConvertTypeForMem(RHSVD->getType())); | ||||
5998 | }); | ||||
5999 | PrivateScope.Privatize(); | ||||
6000 | // Emit the combiner body: | ||||
6001 | // %2 = <ReductionOp>(<type> *%lhs, <type> *%rhs) | ||||
6002 | // store <type> %2, <type>* %lhs | ||||
6003 | CGM.getOpenMPRuntime().emitSingleReductionCombiner( | ||||
6004 | CGF, ReductionOp, PrivateRef, cast<DeclRefExpr>(LHS), | ||||
6005 | cast<DeclRefExpr>(RHS)); | ||||
6006 | CGF.FinishFunction(); | ||||
6007 | return Fn; | ||||
6008 | } | ||||
6009 | |||||
6010 | /// Emits reduction finalizer function: | ||||
6011 | /// \code | ||||
6012 | /// void @.red_fini(void* %arg) { | ||||
6013 | /// %0 = bitcast void* %arg to <type>* | ||||
6014 | /// <destroy>(<type>* %0) | ||||
6015 | /// ret void | ||||
6016 | /// } | ||||
6017 | /// \endcode | ||||
6018 | static llvm::Value *emitReduceFiniFunction(CodeGenModule &CGM, | ||||
6019 | SourceLocation Loc, | ||||
6020 | ReductionCodeGen &RCG, unsigned N) { | ||||
6021 | if (!RCG.needCleanups(N)) | ||||
6022 | return nullptr; | ||||
6023 | ASTContext &C = CGM.getContext(); | ||||
6024 | FunctionArgList Args; | ||||
6025 | ImplicitParamDecl Param(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, C.VoidPtrTy, | ||||
6026 | ImplicitParamDecl::Other); | ||||
6027 | Args.emplace_back(&Param); | ||||
6028 | const auto &FnInfo = | ||||
6029 | CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, Args); | ||||
6030 | llvm::FunctionType *FnTy = CGM.getTypes().GetFunctionType(FnInfo); | ||||
6031 | std::string Name = CGM.getOpenMPRuntime().getName({"red_fini", ""}); | ||||
6032 | auto *Fn = llvm::Function::Create(FnTy, llvm::GlobalValue::InternalLinkage, | ||||
6033 | Name, &CGM.getModule()); | ||||
6034 | CGM.SetInternalFunctionAttributes(GlobalDecl(), Fn, FnInfo); | ||||
6035 | Fn->setDoesNotRecurse(); | ||||
6036 | CodeGenFunction CGF(CGM); | ||||
6037 | CGF.StartFunction(GlobalDecl(), C.VoidTy, Fn, FnInfo, Args, Loc, Loc); | ||||
6038 | Address PrivateAddr = CGF.EmitLoadOfPointer( | ||||
6039 | CGF.GetAddrOfLocalVar(&Param), | ||||
6040 | C.getPointerType(C.VoidPtrTy).castAs<PointerType>()); | ||||
6041 | llvm::Value *Size = nullptr; | ||||
6042 | // If the size of the reduction item is non-constant, load it from global | ||||
6043 | // threadprivate variable. | ||||
6044 | if (RCG.getSizes(N).second) { | ||||
6045 | Address SizeAddr = CGM.getOpenMPRuntime().getAddrOfArtificialThreadPrivate( | ||||
6046 | CGF, CGM.getContext().getSizeType(), | ||||
6047 | generateUniqueName(CGM, "reduction_size", RCG.getRefExpr(N))); | ||||
6048 | Size = CGF.EmitLoadOfScalar(SizeAddr, /*Volatile=*/false, | ||||
6049 | CGM.getContext().getSizeType(), Loc); | ||||
6050 | } | ||||
6051 | RCG.emitAggregateType(CGF, N, Size); | ||||
6052 | // Emit the finalizer body: | ||||
6053 | // <destroy>(<type>* %0) | ||||
6054 | RCG.emitCleanups(CGF, N, PrivateAddr); | ||||
6055 | CGF.FinishFunction(Loc); | ||||
6056 | return Fn; | ||||
6057 | } | ||||
6058 | |||||
6059 | llvm::Value *CGOpenMPRuntime::emitTaskReductionInit( | ||||
6060 | CodeGenFunction &CGF, SourceLocation Loc, ArrayRef<const Expr *> LHSExprs, | ||||
6061 | ArrayRef<const Expr *> RHSExprs, const OMPTaskDataTy &Data) { | ||||
6062 | if (!CGF.HaveInsertPoint() || Data.ReductionVars.empty()) | ||||
6063 | return nullptr; | ||||
6064 | |||||
6065 | // Build typedef struct: | ||||
6066 | // kmp_taskred_input { | ||||
6067 | // void *reduce_shar; // shared reduction item | ||||
6068 | // void *reduce_orig; // original reduction item used for initialization | ||||
6069 | // size_t reduce_size; // size of data item | ||||
6070 | // void *reduce_init; // data initialization routine | ||||
6071 | // void *reduce_fini; // data finalization routine | ||||
6072 | // void *reduce_comb; // data combiner routine | ||||
6073 | // kmp_task_red_flags_t flags; // flags for additional info from compiler | ||||
6074 | // } kmp_taskred_input_t; | ||||
6075 | ASTContext &C = CGM.getContext(); | ||||
6076 | RecordDecl *RD = C.buildImplicitRecord("kmp_taskred_input_t"); | ||||
6077 | RD->startDefinition(); | ||||
6078 | const FieldDecl *SharedFD = addFieldToRecordDecl(C, RD, C.VoidPtrTy); | ||||
6079 | const FieldDecl *OrigFD = addFieldToRecordDecl(C, RD, C.VoidPtrTy); | ||||
6080 | const FieldDecl *SizeFD = addFieldToRecordDecl(C, RD, C.getSizeType()); | ||||
6081 | const FieldDecl *InitFD = addFieldToRecordDecl(C, RD, C.VoidPtrTy); | ||||
6082 | const FieldDecl *FiniFD = addFieldToRecordDecl(C, RD, C.VoidPtrTy); | ||||
6083 | const FieldDecl *CombFD = addFieldToRecordDecl(C, RD, C.VoidPtrTy); | ||||
6084 | const FieldDecl *FlagsFD = addFieldToRecordDecl( | ||||
6085 | C, RD, C.getIntTypeForBitwidth(/*DestWidth=*/32, /*Signed=*/false)); | ||||
6086 | RD->completeDefinition(); | ||||
6087 | QualType RDType = C.getRecordType(RD); | ||||
6088 | unsigned Size = Data.ReductionVars.size(); | ||||
6089 | llvm::APInt ArraySize(/*numBits=*/64, Size); | ||||
6090 | QualType ArrayRDType = C.getConstantArrayType( | ||||
6091 | RDType, ArraySize, nullptr, ArrayType::Normal, /*IndexTypeQuals=*/0); | ||||
6092 | // kmp_task_red_input_t .rd_input.[Size]; | ||||
6093 | Address TaskRedInput = CGF.CreateMemTemp(ArrayRDType, ".rd_input."); | ||||
6094 | ReductionCodeGen RCG(Data.ReductionVars, Data.ReductionOrigs, | ||||
6095 | Data.ReductionCopies, Data.ReductionOps); | ||||
6096 | for (unsigned Cnt = 0; Cnt < Size; ++Cnt) { | ||||
6097 | // kmp_task_red_input_t &ElemLVal = .rd_input.[Cnt]; | ||||
6098 | llvm::Value *Idxs[] = {llvm::ConstantInt::get(CGM.SizeTy, /*V=*/0), | ||||
6099 | llvm::ConstantInt::get(CGM.SizeTy, Cnt)}; | ||||
6100 | llvm::Value *GEP = CGF.EmitCheckedInBoundsGEP( | ||||
6101 | TaskRedInput.getPointer(), Idxs, | ||||
6102 | /*SignedIndices=*/false, /*IsSubtraction=*/false, Loc, | ||||
6103 | ".rd_input.gep."); | ||||
6104 | LValue ElemLVal = CGF.MakeNaturalAlignAddrLValue(GEP, RDType); | ||||
6105 | // ElemLVal.reduce_shar = &Shareds[Cnt]; | ||||
6106 | LValue SharedLVal = CGF.EmitLValueForField(ElemLVal, SharedFD); | ||||
6107 | RCG.emitSharedOrigLValue(CGF, Cnt); | ||||
6108 | llvm::Value *CastedShared = | ||||
6109 | CGF.EmitCastToVoidPtr(RCG.getSharedLValue(Cnt).getPointer(CGF)); | ||||
6110 | CGF.EmitStoreOfScalar(CastedShared, SharedLVal); | ||||
6111 | // ElemLVal.reduce_orig = &Origs[Cnt]; | ||||
6112 | LValue OrigLVal = CGF.EmitLValueForField(ElemLVal, OrigFD); | ||||
6113 | llvm::Value *CastedOrig = | ||||
6114 | CGF.EmitCastToVoidPtr(RCG.getOrigLValue(Cnt).getPointer(CGF)); | ||||
6115 | CGF.EmitStoreOfScalar(CastedOrig, OrigLVal); | ||||
6116 | RCG.emitAggregateType(CGF, Cnt); | ||||
6117 | llvm::Value *SizeValInChars; | ||||
6118 | llvm::Value *SizeVal; | ||||
6119 | std::tie(SizeValInChars, SizeVal) = RCG.getSizes(Cnt); | ||||
6120 | // We use delayed creation/initialization for VLAs and array sections. It is | ||||
6121 | // required because runtime does not provide the way to pass the sizes of | ||||
6122 | // VLAs/array sections to initializer/combiner/finalizer functions. Instead | ||||
6123 | // threadprivate global variables are used to store these values and use | ||||
6124 | // them in the functions. | ||||
6125 | bool DelayedCreation = !!SizeVal; | ||||
6126 | SizeValInChars = CGF.Builder.CreateIntCast(SizeValInChars, CGM.SizeTy, | ||||
6127 | /*isSigned=*/false); | ||||
6128 | LValue SizeLVal = CGF.EmitLValueForField(ElemLVal, SizeFD); | ||||
6129 | CGF.EmitStoreOfScalar(SizeValInChars, SizeLVal); | ||||
6130 | // ElemLVal.reduce_init = init; | ||||
6131 | LValue InitLVal = CGF.EmitLValueForField(ElemLVal, InitFD); | ||||
6132 | llvm::Value *InitAddr = | ||||
6133 | CGF.EmitCastToVoidPtr(emitReduceInitFunction(CGM, Loc, RCG, Cnt)); | ||||
6134 | CGF.EmitStoreOfScalar(InitAddr, InitLVal); | ||||
6135 | // ElemLVal.reduce_fini = fini; | ||||
6136 | LValue FiniLVal = CGF.EmitLValueForField(ElemLVal, FiniFD); | ||||
6137 | llvm::Value *Fini = emitReduceFiniFunction(CGM, Loc, RCG, Cnt); | ||||
6138 | llvm::Value *FiniAddr = Fini | ||||
6139 | ? CGF.EmitCastToVoidPtr(Fini) | ||||
6140 | : llvm::ConstantPointerNull::get(CGM.VoidPtrTy); | ||||
6141 | CGF.EmitStoreOfScalar(FiniAddr, FiniLVal); | ||||
6142 | // ElemLVal.reduce_comb = comb; | ||||
6143 | LValue CombLVal = CGF.EmitLValueForField(ElemLVal, CombFD); | ||||
6144 | llvm::Value *CombAddr = CGF.EmitCastToVoidPtr(emitReduceCombFunction( | ||||
6145 | CGM, Loc, RCG, Cnt, Data.ReductionOps[Cnt], LHSExprs[Cnt], | ||||
6146 | RHSExprs[Cnt], Data.ReductionCopies[Cnt])); | ||||
6147 | CGF.EmitStoreOfScalar(CombAddr, CombLVal); | ||||
6148 | // ElemLVal.flags = 0; | ||||
6149 | LValue FlagsLVal = CGF.EmitLValueForField(ElemLVal, FlagsFD); | ||||
6150 | if (DelayedCreation) { | ||||
6151 | CGF.EmitStoreOfScalar( | ||||
6152 | llvm::ConstantInt::get(CGM.Int32Ty, /*V=*/1, /*isSigned=*/true), | ||||
6153 | FlagsLVal); | ||||
6154 | } else | ||||
6155 | CGF.EmitNullInitialization(FlagsLVal.getAddress(CGF), | ||||
6156 | FlagsLVal.getType()); | ||||
6157 | } | ||||
6158 | if (Data.IsReductionWithTaskMod) { | ||||
6159 | // Build call void *__kmpc_taskred_modifier_init(ident_t *loc, int gtid, int | ||||
6160 | // is_ws, int num, void *data); | ||||
6161 | llvm::Value *IdentTLoc = emitUpdateLocation(CGF, Loc); | ||||
6162 | llvm::Value *GTid = CGF.Builder.CreateIntCast(getThreadID(CGF, Loc), | ||||
6163 | CGM.IntTy, /*isSigned=*/true); | ||||
6164 | llvm::Value *Args[] = { | ||||
6165 | IdentTLoc, GTid, | ||||
6166 | llvm::ConstantInt::get(CGM.IntTy, Data.IsWorksharingReduction ? 1 : 0, | ||||
6167 | /*isSigned=*/true), | ||||
6168 | llvm::ConstantInt::get(CGM.IntTy, Size, /*isSigned=*/true), | ||||
6169 | CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
6170 | TaskRedInput.getPointer(), CGM.VoidPtrTy)}; | ||||
6171 | return CGF.EmitRuntimeCall( | ||||
6172 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
6173 | CGM.getModule(), OMPRTL___kmpc_taskred_modifier_init), | ||||
6174 | Args); | ||||
6175 | } | ||||
6176 | // Build call void *__kmpc_taskred_init(int gtid, int num_data, void *data); | ||||
6177 | llvm::Value *Args[] = { | ||||
6178 | CGF.Builder.CreateIntCast(getThreadID(CGF, Loc), CGM.IntTy, | ||||
6179 | /*isSigned=*/true), | ||||
6180 | llvm::ConstantInt::get(CGM.IntTy, Size, /*isSigned=*/true), | ||||
6181 | CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(TaskRedInput.getPointer(), | ||||
6182 | CGM.VoidPtrTy)}; | ||||
6183 | return CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
6184 | CGM.getModule(), OMPRTL___kmpc_taskred_init), | ||||
6185 | Args); | ||||
6186 | } | ||||
6187 | |||||
6188 | void CGOpenMPRuntime::emitTaskReductionFini(CodeGenFunction &CGF, | ||||
6189 | SourceLocation Loc, | ||||
6190 | bool IsWorksharingReduction) { | ||||
6191 | // Build call void *__kmpc_taskred_modifier_init(ident_t *loc, int gtid, int | ||||
6192 | // is_ws, int num, void *data); | ||||
6193 | llvm::Value *IdentTLoc = emitUpdateLocation(CGF, Loc); | ||||
6194 | llvm::Value *GTid = CGF.Builder.CreateIntCast(getThreadID(CGF, Loc), | ||||
6195 | CGM.IntTy, /*isSigned=*/true); | ||||
6196 | llvm::Value *Args[] = {IdentTLoc, GTid, | ||||
6197 | llvm::ConstantInt::get(CGM.IntTy, | ||||
6198 | IsWorksharingReduction ? 1 : 0, | ||||
6199 | /*isSigned=*/true)}; | ||||
6200 | (void)CGF.EmitRuntimeCall( | ||||
6201 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
6202 | CGM.getModule(), OMPRTL___kmpc_task_reduction_modifier_fini), | ||||
6203 | Args); | ||||
6204 | } | ||||
6205 | |||||
6206 | void CGOpenMPRuntime::emitTaskReductionFixups(CodeGenFunction &CGF, | ||||
6207 | SourceLocation Loc, | ||||
6208 | ReductionCodeGen &RCG, | ||||
6209 | unsigned N) { | ||||
6210 | auto Sizes = RCG.getSizes(N); | ||||
6211 | // Emit threadprivate global variable if the type is non-constant | ||||
6212 | // (Sizes.second = nullptr). | ||||
6213 | if (Sizes.second) { | ||||
6214 | llvm::Value *SizeVal = CGF.Builder.CreateIntCast(Sizes.second, CGM.SizeTy, | ||||
6215 | /*isSigned=*/false); | ||||
6216 | Address SizeAddr = getAddrOfArtificialThreadPrivate( | ||||
6217 | CGF, CGM.getContext().getSizeType(), | ||||
6218 | generateUniqueName(CGM, "reduction_size", RCG.getRefExpr(N))); | ||||
6219 | CGF.Builder.CreateStore(SizeVal, SizeAddr, /*IsVolatile=*/false); | ||||
6220 | } | ||||
6221 | } | ||||
6222 | |||||
6223 | Address CGOpenMPRuntime::getTaskReductionItem(CodeGenFunction &CGF, | ||||
6224 | SourceLocation Loc, | ||||
6225 | llvm::Value *ReductionsPtr, | ||||
6226 | LValue SharedLVal) { | ||||
6227 | // Build call void *__kmpc_task_reduction_get_th_data(int gtid, void *tg, void | ||||
6228 | // *d); | ||||
6229 | llvm::Value *Args[] = {CGF.Builder.CreateIntCast(getThreadID(CGF, Loc), | ||||
6230 | CGM.IntTy, | ||||
6231 | /*isSigned=*/true), | ||||
6232 | ReductionsPtr, | ||||
6233 | CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
6234 | SharedLVal.getPointer(CGF), CGM.VoidPtrTy)}; | ||||
6235 | return Address( | ||||
6236 | CGF.EmitRuntimeCall( | ||||
6237 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
6238 | CGM.getModule(), OMPRTL___kmpc_task_reduction_get_th_data), | ||||
6239 | Args), | ||||
6240 | SharedLVal.getAlignment()); | ||||
6241 | } | ||||
6242 | |||||
6243 | void CGOpenMPRuntime::emitTaskwaitCall(CodeGenFunction &CGF, | ||||
6244 | SourceLocation Loc) { | ||||
6245 | if (!CGF.HaveInsertPoint()) | ||||
6246 | return; | ||||
6247 | |||||
6248 | if (CGF.CGM.getLangOpts().OpenMPIRBuilder) { | ||||
6249 | OMPBuilder.createTaskwait(CGF.Builder); | ||||
6250 | } else { | ||||
6251 | // Build call kmp_int32 __kmpc_omp_taskwait(ident_t *loc, kmp_int32 | ||||
6252 | // global_tid); | ||||
6253 | llvm::Value *Args[] = {emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc)}; | ||||
6254 | // Ignore return result until untied tasks are supported. | ||||
6255 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
6256 | CGM.getModule(), OMPRTL___kmpc_omp_taskwait), | ||||
6257 | Args); | ||||
6258 | } | ||||
6259 | |||||
6260 | if (auto *Region = dyn_cast_or_null<CGOpenMPRegionInfo>(CGF.CapturedStmtInfo)) | ||||
6261 | Region->emitUntiedSwitch(CGF); | ||||
6262 | } | ||||
6263 | |||||
6264 | void CGOpenMPRuntime::emitInlinedDirective(CodeGenFunction &CGF, | ||||
6265 | OpenMPDirectiveKind InnerKind, | ||||
6266 | const RegionCodeGenTy &CodeGen, | ||||
6267 | bool HasCancel) { | ||||
6268 | if (!CGF.HaveInsertPoint()) | ||||
6269 | return; | ||||
6270 | InlinedOpenMPRegionRAII Region(CGF, CodeGen, InnerKind, HasCancel, | ||||
6271 | InnerKind != OMPD_critical && | ||||
6272 | InnerKind != OMPD_master && | ||||
6273 | InnerKind != OMPD_masked); | ||||
6274 | CGF.CapturedStmtInfo->EmitBody(CGF, /*S=*/nullptr); | ||||
6275 | } | ||||
6276 | |||||
6277 | namespace { | ||||
6278 | enum RTCancelKind { | ||||
6279 | CancelNoreq = 0, | ||||
6280 | CancelParallel = 1, | ||||
6281 | CancelLoop = 2, | ||||
6282 | CancelSections = 3, | ||||
6283 | CancelTaskgroup = 4 | ||||
6284 | }; | ||||
6285 | } // anonymous namespace | ||||
6286 | |||||
6287 | static RTCancelKind getCancellationKind(OpenMPDirectiveKind CancelRegion) { | ||||
6288 | RTCancelKind CancelKind = CancelNoreq; | ||||
6289 | if (CancelRegion == OMPD_parallel) | ||||
6290 | CancelKind = CancelParallel; | ||||
6291 | else if (CancelRegion == OMPD_for) | ||||
6292 | CancelKind = CancelLoop; | ||||
6293 | else if (CancelRegion == OMPD_sections) | ||||
6294 | CancelKind = CancelSections; | ||||
6295 | else { | ||||
6296 | assert(CancelRegion == OMPD_taskgroup)((void)0); | ||||
6297 | CancelKind = CancelTaskgroup; | ||||
6298 | } | ||||
6299 | return CancelKind; | ||||
6300 | } | ||||
6301 | |||||
6302 | void CGOpenMPRuntime::emitCancellationPointCall( | ||||
6303 | CodeGenFunction &CGF, SourceLocation Loc, | ||||
6304 | OpenMPDirectiveKind CancelRegion) { | ||||
6305 | if (!CGF.HaveInsertPoint()) | ||||
6306 | return; | ||||
6307 | // Build call kmp_int32 __kmpc_cancellationpoint(ident_t *loc, kmp_int32 | ||||
6308 | // global_tid, kmp_int32 cncl_kind); | ||||
6309 | if (auto *OMPRegionInfo = | ||||
6310 | dyn_cast_or_null<CGOpenMPRegionInfo>(CGF.CapturedStmtInfo)) { | ||||
6311 | // For 'cancellation point taskgroup', the task region info may not have a | ||||
6312 | // cancel. This may instead happen in another adjacent task. | ||||
6313 | if (CancelRegion == OMPD_taskgroup || OMPRegionInfo->hasCancel()) { | ||||
6314 | llvm::Value *Args[] = { | ||||
6315 | emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc), | ||||
6316 | CGF.Builder.getInt32(getCancellationKind(CancelRegion))}; | ||||
6317 | // Ignore return result until untied tasks are supported. | ||||
6318 | llvm::Value *Result = CGF.EmitRuntimeCall( | ||||
6319 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
6320 | CGM.getModule(), OMPRTL___kmpc_cancellationpoint), | ||||
6321 | Args); | ||||
6322 | // if (__kmpc_cancellationpoint()) { | ||||
6323 | // call i32 @__kmpc_cancel_barrier( // for parallel cancellation only | ||||
6324 | // exit from construct; | ||||
6325 | // } | ||||
6326 | llvm::BasicBlock *ExitBB = CGF.createBasicBlock(".cancel.exit"); | ||||
6327 | llvm::BasicBlock *ContBB = CGF.createBasicBlock(".cancel.continue"); | ||||
6328 | llvm::Value *Cmp = CGF.Builder.CreateIsNotNull(Result); | ||||
6329 | CGF.Builder.CreateCondBr(Cmp, ExitBB, ContBB); | ||||
6330 | CGF.EmitBlock(ExitBB); | ||||
6331 | if (CancelRegion == OMPD_parallel) | ||||
6332 | emitBarrierCall(CGF, Loc, OMPD_unknown, /*EmitChecks=*/false); | ||||
6333 | // exit from construct; | ||||
6334 | CodeGenFunction::JumpDest CancelDest = | ||||
6335 | CGF.getOMPCancelDestination(OMPRegionInfo->getDirectiveKind()); | ||||
6336 | CGF.EmitBranchThroughCleanup(CancelDest); | ||||
6337 | CGF.EmitBlock(ContBB, /*IsFinished=*/true); | ||||
6338 | } | ||||
6339 | } | ||||
6340 | } | ||||
6341 | |||||
6342 | void CGOpenMPRuntime::emitCancelCall(CodeGenFunction &CGF, SourceLocation Loc, | ||||
6343 | const Expr *IfCond, | ||||
6344 | OpenMPDirectiveKind CancelRegion) { | ||||
6345 | if (!CGF.HaveInsertPoint()) | ||||
6346 | return; | ||||
6347 | // Build call kmp_int32 __kmpc_cancel(ident_t *loc, kmp_int32 global_tid, | ||||
6348 | // kmp_int32 cncl_kind); | ||||
6349 | auto &M = CGM.getModule(); | ||||
6350 | if (auto *OMPRegionInfo = | ||||
6351 | dyn_cast_or_null<CGOpenMPRegionInfo>(CGF.CapturedStmtInfo)) { | ||||
6352 | auto &&ThenGen = [this, &M, Loc, CancelRegion, | ||||
6353 | OMPRegionInfo](CodeGenFunction &CGF, PrePostActionTy &) { | ||||
6354 | CGOpenMPRuntime &RT = CGF.CGM.getOpenMPRuntime(); | ||||
6355 | llvm::Value *Args[] = { | ||||
6356 | RT.emitUpdateLocation(CGF, Loc), RT.getThreadID(CGF, Loc), | ||||
6357 | CGF.Builder.getInt32(getCancellationKind(CancelRegion))}; | ||||
6358 | // Ignore return result until untied tasks are supported. | ||||
6359 | llvm::Value *Result = CGF.EmitRuntimeCall( | ||||
6360 | OMPBuilder.getOrCreateRuntimeFunction(M, OMPRTL___kmpc_cancel), Args); | ||||
6361 | // if (__kmpc_cancel()) { | ||||
6362 | // call i32 @__kmpc_cancel_barrier( // for parallel cancellation only | ||||
6363 | // exit from construct; | ||||
6364 | // } | ||||
6365 | llvm::BasicBlock *ExitBB = CGF.createBasicBlock(".cancel.exit"); | ||||
6366 | llvm::BasicBlock *ContBB = CGF.createBasicBlock(".cancel.continue"); | ||||
6367 | llvm::Value *Cmp = CGF.Builder.CreateIsNotNull(Result); | ||||
6368 | CGF.Builder.CreateCondBr(Cmp, ExitBB, ContBB); | ||||
6369 | CGF.EmitBlock(ExitBB); | ||||
6370 | if (CancelRegion == OMPD_parallel) | ||||
6371 | RT.emitBarrierCall(CGF, Loc, OMPD_unknown, /*EmitChecks=*/false); | ||||
6372 | // exit from construct; | ||||
6373 | CodeGenFunction::JumpDest CancelDest = | ||||
6374 | CGF.getOMPCancelDestination(OMPRegionInfo->getDirectiveKind()); | ||||
6375 | CGF.EmitBranchThroughCleanup(CancelDest); | ||||
6376 | CGF.EmitBlock(ContBB, /*IsFinished=*/true); | ||||
6377 | }; | ||||
6378 | if (IfCond) { | ||||
6379 | emitIfClause(CGF, IfCond, ThenGen, | ||||
6380 | [](CodeGenFunction &, PrePostActionTy &) {}); | ||||
6381 | } else { | ||||
6382 | RegionCodeGenTy ThenRCG(ThenGen); | ||||
6383 | ThenRCG(CGF); | ||||
6384 | } | ||||
6385 | } | ||||
6386 | } | ||||
6387 | |||||
6388 | namespace { | ||||
6389 | /// Cleanup action for uses_allocators support. | ||||
6390 | class OMPUsesAllocatorsActionTy final : public PrePostActionTy { | ||||
6391 | ArrayRef<std::pair<const Expr *, const Expr *>> Allocators; | ||||
6392 | |||||
6393 | public: | ||||
6394 | OMPUsesAllocatorsActionTy( | ||||
6395 | ArrayRef<std::pair<const Expr *, const Expr *>> Allocators) | ||||
6396 | : Allocators(Allocators) {} | ||||
6397 | void Enter(CodeGenFunction &CGF) override { | ||||
6398 | if (!CGF.HaveInsertPoint()) | ||||
6399 | return; | ||||
6400 | for (const auto &AllocatorData : Allocators) { | ||||
6401 | CGF.CGM.getOpenMPRuntime().emitUsesAllocatorsInit( | ||||
6402 | CGF, AllocatorData.first, AllocatorData.second); | ||||
6403 | } | ||||
6404 | } | ||||
6405 | void Exit(CodeGenFunction &CGF) override { | ||||
6406 | if (!CGF.HaveInsertPoint()) | ||||
6407 | return; | ||||
6408 | for (const auto &AllocatorData : Allocators) { | ||||
6409 | CGF.CGM.getOpenMPRuntime().emitUsesAllocatorsFini(CGF, | ||||
6410 | AllocatorData.first); | ||||
6411 | } | ||||
6412 | } | ||||
6413 | }; | ||||
6414 | } // namespace | ||||
6415 | |||||
6416 | void CGOpenMPRuntime::emitTargetOutlinedFunction( | ||||
6417 | const OMPExecutableDirective &D, StringRef ParentName, | ||||
6418 | llvm::Function *&OutlinedFn, llvm::Constant *&OutlinedFnID, | ||||
6419 | bool IsOffloadEntry, const RegionCodeGenTy &CodeGen) { | ||||
6420 | assert(!ParentName.empty() && "Invalid target region parent name!")((void)0); | ||||
6421 | HasEmittedTargetRegion = true; | ||||
6422 | SmallVector<std::pair<const Expr *, const Expr *>, 4> Allocators; | ||||
6423 | for (const auto *C : D.getClausesOfKind<OMPUsesAllocatorsClause>()) { | ||||
6424 | for (unsigned I = 0, E = C->getNumberOfAllocators(); I < E; ++I) { | ||||
6425 | const OMPUsesAllocatorsClause::Data D = C->getAllocatorData(I); | ||||
6426 | if (!D.AllocatorTraits) | ||||
6427 | continue; | ||||
6428 | Allocators.emplace_back(D.Allocator, D.AllocatorTraits); | ||||
6429 | } | ||||
6430 | } | ||||
6431 | OMPUsesAllocatorsActionTy UsesAllocatorAction(Allocators); | ||||
6432 | CodeGen.setAction(UsesAllocatorAction); | ||||
6433 | emitTargetOutlinedFunctionHelper(D, ParentName, OutlinedFn, OutlinedFnID, | ||||
6434 | IsOffloadEntry, CodeGen); | ||||
6435 | } | ||||
6436 | |||||
6437 | void CGOpenMPRuntime::emitUsesAllocatorsInit(CodeGenFunction &CGF, | ||||
6438 | const Expr *Allocator, | ||||
6439 | const Expr *AllocatorTraits) { | ||||
6440 | llvm::Value *ThreadId = getThreadID(CGF, Allocator->getExprLoc()); | ||||
6441 | ThreadId = CGF.Builder.CreateIntCast(ThreadId, CGF.IntTy, /*isSigned=*/true); | ||||
6442 | // Use default memspace handle. | ||||
6443 | llvm::Value *MemSpaceHandle = llvm::ConstantPointerNull::get(CGF.VoidPtrTy); | ||||
6444 | llvm::Value *NumTraits = llvm::ConstantInt::get( | ||||
6445 | CGF.IntTy, cast<ConstantArrayType>( | ||||
6446 | AllocatorTraits->getType()->getAsArrayTypeUnsafe()) | ||||
6447 | ->getSize() | ||||
6448 | .getLimitedValue()); | ||||
6449 | LValue AllocatorTraitsLVal = CGF.EmitLValue(AllocatorTraits); | ||||
6450 | Address Addr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
6451 | AllocatorTraitsLVal.getAddress(CGF), CGF.VoidPtrPtrTy); | ||||
6452 | AllocatorTraitsLVal = CGF.MakeAddrLValue(Addr, CGF.getContext().VoidPtrTy, | ||||
6453 | AllocatorTraitsLVal.getBaseInfo(), | ||||
6454 | AllocatorTraitsLVal.getTBAAInfo()); | ||||
6455 | llvm::Value *Traits = | ||||
6456 | CGF.EmitLoadOfScalar(AllocatorTraitsLVal, AllocatorTraits->getExprLoc()); | ||||
6457 | |||||
6458 | llvm::Value *AllocatorVal = | ||||
6459 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
6460 | CGM.getModule(), OMPRTL___kmpc_init_allocator), | ||||
6461 | {ThreadId, MemSpaceHandle, NumTraits, Traits}); | ||||
6462 | // Store to allocator. | ||||
6463 | CGF.EmitVarDecl(*cast<VarDecl>( | ||||
6464 | cast<DeclRefExpr>(Allocator->IgnoreParenImpCasts())->getDecl())); | ||||
6465 | LValue AllocatorLVal = CGF.EmitLValue(Allocator->IgnoreParenImpCasts()); | ||||
6466 | AllocatorVal = | ||||
6467 | CGF.EmitScalarConversion(AllocatorVal, CGF.getContext().VoidPtrTy, | ||||
6468 | Allocator->getType(), Allocator->getExprLoc()); | ||||
6469 | CGF.EmitStoreOfScalar(AllocatorVal, AllocatorLVal); | ||||
6470 | } | ||||
6471 | |||||
6472 | void CGOpenMPRuntime::emitUsesAllocatorsFini(CodeGenFunction &CGF, | ||||
6473 | const Expr *Allocator) { | ||||
6474 | llvm::Value *ThreadId = getThreadID(CGF, Allocator->getExprLoc()); | ||||
6475 | ThreadId = CGF.Builder.CreateIntCast(ThreadId, CGF.IntTy, /*isSigned=*/true); | ||||
6476 | LValue AllocatorLVal = CGF.EmitLValue(Allocator->IgnoreParenImpCasts()); | ||||
6477 | llvm::Value *AllocatorVal = | ||||
6478 | CGF.EmitLoadOfScalar(AllocatorLVal, Allocator->getExprLoc()); | ||||
6479 | AllocatorVal = CGF.EmitScalarConversion(AllocatorVal, Allocator->getType(), | ||||
6480 | CGF.getContext().VoidPtrTy, | ||||
6481 | Allocator->getExprLoc()); | ||||
6482 | (void)CGF.EmitRuntimeCall( | ||||
6483 | OMPBuilder.getOrCreateRuntimeFunction(CGM.getModule(), | ||||
6484 | OMPRTL___kmpc_destroy_allocator), | ||||
6485 | {ThreadId, AllocatorVal}); | ||||
6486 | } | ||||
6487 | |||||
6488 | void CGOpenMPRuntime::emitTargetOutlinedFunctionHelper( | ||||
6489 | const OMPExecutableDirective &D, StringRef ParentName, | ||||
6490 | llvm::Function *&OutlinedFn, llvm::Constant *&OutlinedFnID, | ||||
6491 | bool IsOffloadEntry, const RegionCodeGenTy &CodeGen) { | ||||
6492 | // Create a unique name for the entry function using the source location | ||||
6493 | // information of the current target region. The name will be something like: | ||||
6494 | // | ||||
6495 | // __omp_offloading_DD_FFFF_PP_lBB | ||||
6496 | // | ||||
6497 | // where DD_FFFF is an ID unique to the file (device and file IDs), PP is the | ||||
6498 | // mangled name of the function that encloses the target region and BB is the | ||||
6499 | // line number of the target region. | ||||
6500 | |||||
6501 | unsigned DeviceID; | ||||
6502 | unsigned FileID; | ||||
6503 | unsigned Line; | ||||
6504 | getTargetEntryUniqueInfo(CGM.getContext(), D.getBeginLoc(), DeviceID, FileID, | ||||
6505 | Line); | ||||
6506 | SmallString<64> EntryFnName; | ||||
6507 | { | ||||
6508 | llvm::raw_svector_ostream OS(EntryFnName); | ||||
6509 | OS << "__omp_offloading" << llvm::format("_%x", DeviceID) | ||||
6510 | << llvm::format("_%x_", FileID) << ParentName << "_l" << Line; | ||||
6511 | } | ||||
6512 | |||||
6513 | const CapturedStmt &CS = *D.getCapturedStmt(OMPD_target); | ||||
6514 | |||||
6515 | CodeGenFunction CGF(CGM, true); | ||||
6516 | CGOpenMPTargetRegionInfo CGInfo(CS, CodeGen, EntryFnName); | ||||
6517 | CodeGenFunction::CGCapturedStmtRAII CapInfoRAII(CGF, &CGInfo); | ||||
6518 | |||||
6519 | OutlinedFn = CGF.GenerateOpenMPCapturedStmtFunction(CS, D.getBeginLoc()); | ||||
6520 | |||||
6521 | // If this target outline function is not an offload entry, we don't need to | ||||
6522 | // register it. | ||||
6523 | if (!IsOffloadEntry) | ||||
6524 | return; | ||||
6525 | |||||
6526 | // The target region ID is used by the runtime library to identify the current | ||||
6527 | // target region, so it only has to be unique and not necessarily point to | ||||
6528 | // anything. It could be the pointer to the outlined function that implements | ||||
6529 | // the target region, but we aren't using that so that the compiler doesn't | ||||
6530 | // need to keep that, and could therefore inline the host function if proven | ||||
6531 | // worthwhile during optimization. In the other hand, if emitting code for the | ||||
6532 | // device, the ID has to be the function address so that it can retrieved from | ||||
6533 | // the offloading entry and launched by the runtime library. We also mark the | ||||
6534 | // outlined function to have external linkage in case we are emitting code for | ||||
6535 | // the device, because these functions will be entry points to the device. | ||||
6536 | |||||
6537 | if (CGM.getLangOpts().OpenMPIsDevice) { | ||||
6538 | OutlinedFnID = llvm::ConstantExpr::getBitCast(OutlinedFn, CGM.Int8PtrTy); | ||||
6539 | OutlinedFn->setLinkage(llvm::GlobalValue::WeakAnyLinkage); | ||||
6540 | OutlinedFn->setDSOLocal(false); | ||||
6541 | if (CGM.getTriple().isAMDGCN()) | ||||
6542 | OutlinedFn->setCallingConv(llvm::CallingConv::AMDGPU_KERNEL); | ||||
6543 | } else { | ||||
6544 | std::string Name = getName({EntryFnName, "region_id"}); | ||||
6545 | OutlinedFnID = new llvm::GlobalVariable( | ||||
6546 | CGM.getModule(), CGM.Int8Ty, /*isConstant=*/true, | ||||
6547 | llvm::GlobalValue::WeakAnyLinkage, | ||||
6548 | llvm::Constant::getNullValue(CGM.Int8Ty), Name); | ||||
6549 | } | ||||
6550 | |||||
6551 | // Register the information for the entry associated with this target region. | ||||
6552 | OffloadEntriesInfoManager.registerTargetRegionEntryInfo( | ||||
6553 | DeviceID, FileID, ParentName, Line, OutlinedFn, OutlinedFnID, | ||||
6554 | OffloadEntriesInfoManagerTy::OMPTargetRegionEntryTargetRegion); | ||||
6555 | |||||
6556 | // Add NumTeams and ThreadLimit attributes to the outlined GPU function | ||||
6557 | int32_t DefaultValTeams = -1; | ||||
6558 | getNumTeamsExprForTargetDirective(CGF, D, DefaultValTeams); | ||||
6559 | if (DefaultValTeams > 0) { | ||||
6560 | OutlinedFn->addFnAttr("omp_target_num_teams", | ||||
6561 | std::to_string(DefaultValTeams)); | ||||
6562 | } | ||||
6563 | int32_t DefaultValThreads = -1; | ||||
6564 | getNumThreadsExprForTargetDirective(CGF, D, DefaultValThreads); | ||||
6565 | if (DefaultValThreads > 0) { | ||||
6566 | OutlinedFn->addFnAttr("omp_target_thread_limit", | ||||
6567 | std::to_string(DefaultValThreads)); | ||||
6568 | } | ||||
6569 | } | ||||
6570 | |||||
6571 | /// Checks if the expression is constant or does not have non-trivial function | ||||
6572 | /// calls. | ||||
6573 | static bool isTrivial(ASTContext &Ctx, const Expr * E) { | ||||
6574 | // We can skip constant expressions. | ||||
6575 | // We can skip expressions with trivial calls or simple expressions. | ||||
6576 | return (E->isEvaluatable(Ctx, Expr::SE_AllowUndefinedBehavior) || | ||||
6577 | !E->hasNonTrivialCall(Ctx)) && | ||||
6578 | !E->HasSideEffects(Ctx, /*IncludePossibleEffects=*/true); | ||||
6579 | } | ||||
6580 | |||||
6581 | const Stmt *CGOpenMPRuntime::getSingleCompoundChild(ASTContext &Ctx, | ||||
6582 | const Stmt *Body) { | ||||
6583 | const Stmt *Child = Body->IgnoreContainers(); | ||||
6584 | while (const auto *C = dyn_cast_or_null<CompoundStmt>(Child)) { | ||||
6585 | Child = nullptr; | ||||
6586 | for (const Stmt *S : C->body()) { | ||||
6587 | if (const auto *E = dyn_cast<Expr>(S)) { | ||||
6588 | if (isTrivial(Ctx, E)) | ||||
6589 | continue; | ||||
6590 | } | ||||
6591 | // Some of the statements can be ignored. | ||||
6592 | if (isa<AsmStmt>(S) || isa<NullStmt>(S) || isa<OMPFlushDirective>(S) || | ||||
6593 | isa<OMPBarrierDirective>(S) || isa<OMPTaskyieldDirective>(S)) | ||||
6594 | continue; | ||||
6595 | // Analyze declarations. | ||||
6596 | if (const auto *DS = dyn_cast<DeclStmt>(S)) { | ||||
6597 | if (llvm::all_of(DS->decls(), [](const Decl *D) { | ||||
6598 | if (isa<EmptyDecl>(D) || isa<DeclContext>(D) || | ||||
6599 | isa<TypeDecl>(D) || isa<PragmaCommentDecl>(D) || | ||||
6600 | isa<PragmaDetectMismatchDecl>(D) || isa<UsingDecl>(D) || | ||||
6601 | isa<UsingDirectiveDecl>(D) || | ||||
6602 | isa<OMPDeclareReductionDecl>(D) || | ||||
6603 | isa<OMPThreadPrivateDecl>(D) || isa<OMPAllocateDecl>(D)) | ||||
6604 | return true; | ||||
6605 | const auto *VD = dyn_cast<VarDecl>(D); | ||||
6606 | if (!VD) | ||||
6607 | return false; | ||||
6608 | return VD->hasGlobalStorage() || !VD->isUsed(); | ||||
6609 | })) | ||||
6610 | continue; | ||||
6611 | } | ||||
6612 | // Found multiple children - cannot get the one child only. | ||||
6613 | if (Child) | ||||
6614 | return nullptr; | ||||
6615 | Child = S; | ||||
6616 | } | ||||
6617 | if (Child) | ||||
6618 | Child = Child->IgnoreContainers(); | ||||
6619 | } | ||||
6620 | return Child; | ||||
6621 | } | ||||
6622 | |||||
6623 | const Expr *CGOpenMPRuntime::getNumTeamsExprForTargetDirective( | ||||
6624 | CodeGenFunction &CGF, const OMPExecutableDirective &D, | ||||
6625 | int32_t &DefaultVal) { | ||||
6626 | |||||
6627 | OpenMPDirectiveKind DirectiveKind = D.getDirectiveKind(); | ||||
6628 | assert(isOpenMPTargetExecutionDirective(DirectiveKind) &&((void)0) | ||||
6629 | "Expected target-based executable directive.")((void)0); | ||||
6630 | switch (DirectiveKind) { | ||||
6631 | case OMPD_target: { | ||||
6632 | const auto *CS = D.getInnermostCapturedStmt(); | ||||
6633 | const auto *Body = | ||||
6634 | CS->getCapturedStmt()->IgnoreContainers(/*IgnoreCaptured=*/true); | ||||
6635 | const Stmt *ChildStmt = | ||||
6636 | CGOpenMPRuntime::getSingleCompoundChild(CGF.getContext(), Body); | ||||
6637 | if (const auto *NestedDir = | ||||
6638 | dyn_cast_or_null<OMPExecutableDirective>(ChildStmt)) { | ||||
6639 | if (isOpenMPTeamsDirective(NestedDir->getDirectiveKind())) { | ||||
6640 | if (NestedDir->hasClausesOfKind<OMPNumTeamsClause>()) { | ||||
6641 | const Expr *NumTeams = | ||||
6642 | NestedDir->getSingleClause<OMPNumTeamsClause>()->getNumTeams(); | ||||
6643 | if (NumTeams->isIntegerConstantExpr(CGF.getContext())) | ||||
6644 | if (auto Constant = | ||||
6645 | NumTeams->getIntegerConstantExpr(CGF.getContext())) | ||||
6646 | DefaultVal = Constant->getExtValue(); | ||||
6647 | return NumTeams; | ||||
6648 | } | ||||
6649 | DefaultVal = 0; | ||||
6650 | return nullptr; | ||||
6651 | } | ||||
6652 | if (isOpenMPParallelDirective(NestedDir->getDirectiveKind()) || | ||||
6653 | isOpenMPSimdDirective(NestedDir->getDirectiveKind())) { | ||||
6654 | DefaultVal = 1; | ||||
6655 | return nullptr; | ||||
6656 | } | ||||
6657 | DefaultVal = 1; | ||||
6658 | return nullptr; | ||||
6659 | } | ||||
6660 | // A value of -1 is used to check if we need to emit no teams region | ||||
6661 | DefaultVal = -1; | ||||
6662 | return nullptr; | ||||
6663 | } | ||||
6664 | case OMPD_target_teams: | ||||
6665 | case OMPD_target_teams_distribute: | ||||
6666 | case OMPD_target_teams_distribute_simd: | ||||
6667 | case OMPD_target_teams_distribute_parallel_for: | ||||
6668 | case OMPD_target_teams_distribute_parallel_for_simd: { | ||||
6669 | if (D.hasClausesOfKind<OMPNumTeamsClause>()) { | ||||
6670 | const Expr *NumTeams = | ||||
6671 | D.getSingleClause<OMPNumTeamsClause>()->getNumTeams(); | ||||
6672 | if (NumTeams->isIntegerConstantExpr(CGF.getContext())) | ||||
6673 | if (auto Constant = NumTeams->getIntegerConstantExpr(CGF.getContext())) | ||||
6674 | DefaultVal = Constant->getExtValue(); | ||||
6675 | return NumTeams; | ||||
6676 | } | ||||
6677 | DefaultVal = 0; | ||||
6678 | return nullptr; | ||||
6679 | } | ||||
6680 | case OMPD_target_parallel: | ||||
6681 | case OMPD_target_parallel_for: | ||||
6682 | case OMPD_target_parallel_for_simd: | ||||
6683 | case OMPD_target_simd: | ||||
6684 | DefaultVal = 1; | ||||
6685 | return nullptr; | ||||
6686 | case OMPD_parallel: | ||||
6687 | case OMPD_for: | ||||
6688 | case OMPD_parallel_for: | ||||
6689 | case OMPD_parallel_master: | ||||
6690 | case OMPD_parallel_sections: | ||||
6691 | case OMPD_for_simd: | ||||
6692 | case OMPD_parallel_for_simd: | ||||
6693 | case OMPD_cancel: | ||||
6694 | case OMPD_cancellation_point: | ||||
6695 | case OMPD_ordered: | ||||
6696 | case OMPD_threadprivate: | ||||
6697 | case OMPD_allocate: | ||||
6698 | case OMPD_task: | ||||
6699 | case OMPD_simd: | ||||
6700 | case OMPD_tile: | ||||
6701 | case OMPD_unroll: | ||||
6702 | case OMPD_sections: | ||||
6703 | case OMPD_section: | ||||
6704 | case OMPD_single: | ||||
6705 | case OMPD_master: | ||||
6706 | case OMPD_critical: | ||||
6707 | case OMPD_taskyield: | ||||
6708 | case OMPD_barrier: | ||||
6709 | case OMPD_taskwait: | ||||
6710 | case OMPD_taskgroup: | ||||
6711 | case OMPD_atomic: | ||||
6712 | case OMPD_flush: | ||||
6713 | case OMPD_depobj: | ||||
6714 | case OMPD_scan: | ||||
6715 | case OMPD_teams: | ||||
6716 | case OMPD_target_data: | ||||
6717 | case OMPD_target_exit_data: | ||||
6718 | case OMPD_target_enter_data: | ||||
6719 | case OMPD_distribute: | ||||
6720 | case OMPD_distribute_simd: | ||||
6721 | case OMPD_distribute_parallel_for: | ||||
6722 | case OMPD_distribute_parallel_for_simd: | ||||
6723 | case OMPD_teams_distribute: | ||||
6724 | case OMPD_teams_distribute_simd: | ||||
6725 | case OMPD_teams_distribute_parallel_for: | ||||
6726 | case OMPD_teams_distribute_parallel_for_simd: | ||||
6727 | case OMPD_target_update: | ||||
6728 | case OMPD_declare_simd: | ||||
6729 | case OMPD_declare_variant: | ||||
6730 | case OMPD_begin_declare_variant: | ||||
6731 | case OMPD_end_declare_variant: | ||||
6732 | case OMPD_declare_target: | ||||
6733 | case OMPD_end_declare_target: | ||||
6734 | case OMPD_declare_reduction: | ||||
6735 | case OMPD_declare_mapper: | ||||
6736 | case OMPD_taskloop: | ||||
6737 | case OMPD_taskloop_simd: | ||||
6738 | case OMPD_master_taskloop: | ||||
6739 | case OMPD_master_taskloop_simd: | ||||
6740 | case OMPD_parallel_master_taskloop: | ||||
6741 | case OMPD_parallel_master_taskloop_simd: | ||||
6742 | case OMPD_requires: | ||||
6743 | case OMPD_unknown: | ||||
6744 | break; | ||||
6745 | default: | ||||
6746 | break; | ||||
6747 | } | ||||
6748 | llvm_unreachable("Unexpected directive kind.")__builtin_unreachable(); | ||||
6749 | } | ||||
6750 | |||||
6751 | llvm::Value *CGOpenMPRuntime::emitNumTeamsForTargetDirective( | ||||
6752 | CodeGenFunction &CGF, const OMPExecutableDirective &D) { | ||||
6753 | assert(!CGF.getLangOpts().OpenMPIsDevice &&((void)0) | ||||
6754 | "Clauses associated with the teams directive expected to be emitted "((void)0) | ||||
6755 | "only for the host!")((void)0); | ||||
6756 | CGBuilderTy &Bld = CGF.Builder; | ||||
6757 | int32_t DefaultNT = -1; | ||||
6758 | const Expr *NumTeams = getNumTeamsExprForTargetDirective(CGF, D, DefaultNT); | ||||
6759 | if (NumTeams != nullptr) { | ||||
6760 | OpenMPDirectiveKind DirectiveKind = D.getDirectiveKind(); | ||||
6761 | |||||
6762 | switch (DirectiveKind) { | ||||
6763 | case OMPD_target: { | ||||
6764 | const auto *CS = D.getInnermostCapturedStmt(); | ||||
6765 | CGOpenMPInnerExprInfo CGInfo(CGF, *CS); | ||||
6766 | CodeGenFunction::CGCapturedStmtRAII CapInfoRAII(CGF, &CGInfo); | ||||
6767 | llvm::Value *NumTeamsVal = CGF.EmitScalarExpr(NumTeams, | ||||
6768 | /*IgnoreResultAssign*/ true); | ||||
6769 | return Bld.CreateIntCast(NumTeamsVal, CGF.Int32Ty, | ||||
6770 | /*isSigned=*/true); | ||||
6771 | } | ||||
6772 | case OMPD_target_teams: | ||||
6773 | case OMPD_target_teams_distribute: | ||||
6774 | case OMPD_target_teams_distribute_simd: | ||||
6775 | case OMPD_target_teams_distribute_parallel_for: | ||||
6776 | case OMPD_target_teams_distribute_parallel_for_simd: { | ||||
6777 | CodeGenFunction::RunCleanupsScope NumTeamsScope(CGF); | ||||
6778 | llvm::Value *NumTeamsVal = CGF.EmitScalarExpr(NumTeams, | ||||
6779 | /*IgnoreResultAssign*/ true); | ||||
6780 | return Bld.CreateIntCast(NumTeamsVal, CGF.Int32Ty, | ||||
6781 | /*isSigned=*/true); | ||||
6782 | } | ||||
6783 | default: | ||||
6784 | break; | ||||
6785 | } | ||||
6786 | } else if (DefaultNT == -1) { | ||||
6787 | return nullptr; | ||||
6788 | } | ||||
6789 | |||||
6790 | return Bld.getInt32(DefaultNT); | ||||
6791 | } | ||||
6792 | |||||
6793 | static llvm::Value *getNumThreads(CodeGenFunction &CGF, const CapturedStmt *CS, | ||||
6794 | llvm::Value *DefaultThreadLimitVal) { | ||||
6795 | const Stmt *Child = CGOpenMPRuntime::getSingleCompoundChild( | ||||
6796 | CGF.getContext(), CS->getCapturedStmt()); | ||||
6797 | if (const auto *Dir = dyn_cast_or_null<OMPExecutableDirective>(Child)) { | ||||
6798 | if (isOpenMPParallelDirective(Dir->getDirectiveKind())) { | ||||
6799 | llvm::Value *NumThreads = nullptr; | ||||
6800 | llvm::Value *CondVal = nullptr; | ||||
6801 | // Handle if clause. If if clause present, the number of threads is | ||||
6802 | // calculated as <cond> ? (<numthreads> ? <numthreads> : 0 ) : 1. | ||||
6803 | if (Dir->hasClausesOfKind<OMPIfClause>()) { | ||||
6804 | CGOpenMPInnerExprInfo CGInfo(CGF, *CS); | ||||
6805 | CodeGenFunction::CGCapturedStmtRAII CapInfoRAII(CGF, &CGInfo); | ||||
6806 | const OMPIfClause *IfClause = nullptr; | ||||
6807 | for (const auto *C : Dir->getClausesOfKind<OMPIfClause>()) { | ||||
6808 | if (C->getNameModifier() == OMPD_unknown || | ||||
6809 | C->getNameModifier() == OMPD_parallel) { | ||||
6810 | IfClause = C; | ||||
6811 | break; | ||||
6812 | } | ||||
6813 | } | ||||
6814 | if (IfClause) { | ||||
6815 | const Expr *Cond = IfClause->getCondition(); | ||||
6816 | bool Result; | ||||
6817 | if (Cond->EvaluateAsBooleanCondition(Result, CGF.getContext())) { | ||||
6818 | if (!Result) | ||||
6819 | return CGF.Builder.getInt32(1); | ||||
6820 | } else { | ||||
6821 | CodeGenFunction::LexicalScope Scope(CGF, Cond->getSourceRange()); | ||||
6822 | if (const auto *PreInit = | ||||
6823 | cast_or_null<DeclStmt>(IfClause->getPreInitStmt())) { | ||||
6824 | for (const auto *I : PreInit->decls()) { | ||||
6825 | if (!I->hasAttr<OMPCaptureNoInitAttr>()) { | ||||
6826 | CGF.EmitVarDecl(cast<VarDecl>(*I)); | ||||
6827 | } else { | ||||
6828 | CodeGenFunction::AutoVarEmission Emission = | ||||
6829 | CGF.EmitAutoVarAlloca(cast<VarDecl>(*I)); | ||||
6830 | CGF.EmitAutoVarCleanups(Emission); | ||||
6831 | } | ||||
6832 | } | ||||
6833 | } | ||||
6834 | CondVal = CGF.EvaluateExprAsBool(Cond); | ||||
6835 | } | ||||
6836 | } | ||||
6837 | } | ||||
6838 | // Check the value of num_threads clause iff if clause was not specified | ||||
6839 | // or is not evaluated to false. | ||||
6840 | if (Dir->hasClausesOfKind<OMPNumThreadsClause>()) { | ||||
6841 | CGOpenMPInnerExprInfo CGInfo(CGF, *CS); | ||||
6842 | CodeGenFunction::CGCapturedStmtRAII CapInfoRAII(CGF, &CGInfo); | ||||
6843 | const auto *NumThreadsClause = | ||||
6844 | Dir->getSingleClause<OMPNumThreadsClause>(); | ||||
6845 | CodeGenFunction::LexicalScope Scope( | ||||
6846 | CGF, NumThreadsClause->getNumThreads()->getSourceRange()); | ||||
6847 | if (const auto *PreInit = | ||||
6848 | cast_or_null<DeclStmt>(NumThreadsClause->getPreInitStmt())) { | ||||
6849 | for (const auto *I : PreInit->decls()) { | ||||
6850 | if (!I->hasAttr<OMPCaptureNoInitAttr>()) { | ||||
6851 | CGF.EmitVarDecl(cast<VarDecl>(*I)); | ||||
6852 | } else { | ||||
6853 | CodeGenFunction::AutoVarEmission Emission = | ||||
6854 | CGF.EmitAutoVarAlloca(cast<VarDecl>(*I)); | ||||
6855 | CGF.EmitAutoVarCleanups(Emission); | ||||
6856 | } | ||||
6857 | } | ||||
6858 | } | ||||
6859 | NumThreads = CGF.EmitScalarExpr(NumThreadsClause->getNumThreads()); | ||||
6860 | NumThreads = CGF.Builder.CreateIntCast(NumThreads, CGF.Int32Ty, | ||||
6861 | /*isSigned=*/false); | ||||
6862 | if (DefaultThreadLimitVal) | ||||
6863 | NumThreads = CGF.Builder.CreateSelect( | ||||
6864 | CGF.Builder.CreateICmpULT(DefaultThreadLimitVal, NumThreads), | ||||
6865 | DefaultThreadLimitVal, NumThreads); | ||||
6866 | } else { | ||||
6867 | NumThreads = DefaultThreadLimitVal ? DefaultThreadLimitVal | ||||
6868 | : CGF.Builder.getInt32(0); | ||||
6869 | } | ||||
6870 | // Process condition of the if clause. | ||||
6871 | if (CondVal) { | ||||
6872 | NumThreads = CGF.Builder.CreateSelect(CondVal, NumThreads, | ||||
6873 | CGF.Builder.getInt32(1)); | ||||
6874 | } | ||||
6875 | return NumThreads; | ||||
6876 | } | ||||
6877 | if (isOpenMPSimdDirective(Dir->getDirectiveKind())) | ||||
6878 | return CGF.Builder.getInt32(1); | ||||
6879 | return DefaultThreadLimitVal; | ||||
6880 | } | ||||
6881 | return DefaultThreadLimitVal ? DefaultThreadLimitVal | ||||
6882 | : CGF.Builder.getInt32(0); | ||||
6883 | } | ||||
6884 | |||||
6885 | const Expr *CGOpenMPRuntime::getNumThreadsExprForTargetDirective( | ||||
6886 | CodeGenFunction &CGF, const OMPExecutableDirective &D, | ||||
6887 | int32_t &DefaultVal) { | ||||
6888 | OpenMPDirectiveKind DirectiveKind = D.getDirectiveKind(); | ||||
6889 | assert(isOpenMPTargetExecutionDirective(DirectiveKind) &&((void)0) | ||||
6890 | "Expected target-based executable directive.")((void)0); | ||||
6891 | |||||
6892 | switch (DirectiveKind) { | ||||
6893 | case OMPD_target: | ||||
6894 | // Teams have no clause thread_limit | ||||
6895 | return nullptr; | ||||
6896 | case OMPD_target_teams: | ||||
6897 | case OMPD_target_teams_distribute: | ||||
6898 | if (D.hasClausesOfKind<OMPThreadLimitClause>()) { | ||||
6899 | const auto *ThreadLimitClause = D.getSingleClause<OMPThreadLimitClause>(); | ||||
6900 | const Expr *ThreadLimit = ThreadLimitClause->getThreadLimit(); | ||||
6901 | if (ThreadLimit->isIntegerConstantExpr(CGF.getContext())) | ||||
6902 | if (auto Constant = | ||||
6903 | ThreadLimit->getIntegerConstantExpr(CGF.getContext())) | ||||
6904 | DefaultVal = Constant->getExtValue(); | ||||
6905 | return ThreadLimit; | ||||
6906 | } | ||||
6907 | return nullptr; | ||||
6908 | case OMPD_target_parallel: | ||||
6909 | case OMPD_target_parallel_for: | ||||
6910 | case OMPD_target_parallel_for_simd: | ||||
6911 | case OMPD_target_teams_distribute_parallel_for: | ||||
6912 | case OMPD_target_teams_distribute_parallel_for_simd: { | ||||
6913 | Expr *ThreadLimit = nullptr; | ||||
6914 | Expr *NumThreads = nullptr; | ||||
6915 | if (D.hasClausesOfKind<OMPThreadLimitClause>()) { | ||||
6916 | const auto *ThreadLimitClause = D.getSingleClause<OMPThreadLimitClause>(); | ||||
6917 | ThreadLimit = ThreadLimitClause->getThreadLimit(); | ||||
6918 | if (ThreadLimit->isIntegerConstantExpr(CGF.getContext())) | ||||
6919 | if (auto Constant = | ||||
6920 | ThreadLimit->getIntegerConstantExpr(CGF.getContext())) | ||||
6921 | DefaultVal = Constant->getExtValue(); | ||||
6922 | } | ||||
6923 | if (D.hasClausesOfKind<OMPNumThreadsClause>()) { | ||||
6924 | const auto *NumThreadsClause = D.getSingleClause<OMPNumThreadsClause>(); | ||||
6925 | NumThreads = NumThreadsClause->getNumThreads(); | ||||
6926 | if (NumThreads->isIntegerConstantExpr(CGF.getContext())) { | ||||
6927 | if (auto Constant = | ||||
6928 | NumThreads->getIntegerConstantExpr(CGF.getContext())) { | ||||
6929 | if (Constant->getExtValue() < DefaultVal) { | ||||
6930 | DefaultVal = Constant->getExtValue(); | ||||
6931 | ThreadLimit = NumThreads; | ||||
6932 | } | ||||
6933 | } | ||||
6934 | } | ||||
6935 | } | ||||
6936 | return ThreadLimit; | ||||
6937 | } | ||||
6938 | case OMPD_target_teams_distribute_simd: | ||||
6939 | case OMPD_target_simd: | ||||
6940 | DefaultVal = 1; | ||||
6941 | return nullptr; | ||||
6942 | case OMPD_parallel: | ||||
6943 | case OMPD_for: | ||||
6944 | case OMPD_parallel_for: | ||||
6945 | case OMPD_parallel_master: | ||||
6946 | case OMPD_parallel_sections: | ||||
6947 | case OMPD_for_simd: | ||||
6948 | case OMPD_parallel_for_simd: | ||||
6949 | case OMPD_cancel: | ||||
6950 | case OMPD_cancellation_point: | ||||
6951 | case OMPD_ordered: | ||||
6952 | case OMPD_threadprivate: | ||||
6953 | case OMPD_allocate: | ||||
6954 | case OMPD_task: | ||||
6955 | case OMPD_simd: | ||||
6956 | case OMPD_tile: | ||||
6957 | case OMPD_unroll: | ||||
6958 | case OMPD_sections: | ||||
6959 | case OMPD_section: | ||||
6960 | case OMPD_single: | ||||
6961 | case OMPD_master: | ||||
6962 | case OMPD_critical: | ||||
6963 | case OMPD_taskyield: | ||||
6964 | case OMPD_barrier: | ||||
6965 | case OMPD_taskwait: | ||||
6966 | case OMPD_taskgroup: | ||||
6967 | case OMPD_atomic: | ||||
6968 | case OMPD_flush: | ||||
6969 | case OMPD_depobj: | ||||
6970 | case OMPD_scan: | ||||
6971 | case OMPD_teams: | ||||
6972 | case OMPD_target_data: | ||||
6973 | case OMPD_target_exit_data: | ||||
6974 | case OMPD_target_enter_data: | ||||
6975 | case OMPD_distribute: | ||||
6976 | case OMPD_distribute_simd: | ||||
6977 | case OMPD_distribute_parallel_for: | ||||
6978 | case OMPD_distribute_parallel_for_simd: | ||||
6979 | case OMPD_teams_distribute: | ||||
6980 | case OMPD_teams_distribute_simd: | ||||
6981 | case OMPD_teams_distribute_parallel_for: | ||||
6982 | case OMPD_teams_distribute_parallel_for_simd: | ||||
6983 | case OMPD_target_update: | ||||
6984 | case OMPD_declare_simd: | ||||
6985 | case OMPD_declare_variant: | ||||
6986 | case OMPD_begin_declare_variant: | ||||
6987 | case OMPD_end_declare_variant: | ||||
6988 | case OMPD_declare_target: | ||||
6989 | case OMPD_end_declare_target: | ||||
6990 | case OMPD_declare_reduction: | ||||
6991 | case OMPD_declare_mapper: | ||||
6992 | case OMPD_taskloop: | ||||
6993 | case OMPD_taskloop_simd: | ||||
6994 | case OMPD_master_taskloop: | ||||
6995 | case OMPD_master_taskloop_simd: | ||||
6996 | case OMPD_parallel_master_taskloop: | ||||
6997 | case OMPD_parallel_master_taskloop_simd: | ||||
6998 | case OMPD_requires: | ||||
6999 | case OMPD_unknown: | ||||
7000 | break; | ||||
7001 | default: | ||||
7002 | break; | ||||
7003 | } | ||||
7004 | llvm_unreachable("Unsupported directive kind.")__builtin_unreachable(); | ||||
7005 | } | ||||
7006 | |||||
7007 | llvm::Value *CGOpenMPRuntime::emitNumThreadsForTargetDirective( | ||||
7008 | CodeGenFunction &CGF, const OMPExecutableDirective &D) { | ||||
7009 | assert(!CGF.getLangOpts().OpenMPIsDevice &&((void)0) | ||||
7010 | "Clauses associated with the teams directive expected to be emitted "((void)0) | ||||
7011 | "only for the host!")((void)0); | ||||
7012 | OpenMPDirectiveKind DirectiveKind = D.getDirectiveKind(); | ||||
7013 | assert(isOpenMPTargetExecutionDirective(DirectiveKind) &&((void)0) | ||||
7014 | "Expected target-based executable directive.")((void)0); | ||||
7015 | CGBuilderTy &Bld = CGF.Builder; | ||||
7016 | llvm::Value *ThreadLimitVal = nullptr; | ||||
7017 | llvm::Value *NumThreadsVal = nullptr; | ||||
7018 | switch (DirectiveKind) { | ||||
7019 | case OMPD_target: { | ||||
7020 | const CapturedStmt *CS = D.getInnermostCapturedStmt(); | ||||
7021 | if (llvm::Value *NumThreads = getNumThreads(CGF, CS, ThreadLimitVal)) | ||||
7022 | return NumThreads; | ||||
7023 | const Stmt *Child = CGOpenMPRuntime::getSingleCompoundChild( | ||||
7024 | CGF.getContext(), CS->getCapturedStmt()); | ||||
7025 | if (const auto *Dir = dyn_cast_or_null<OMPExecutableDirective>(Child)) { | ||||
7026 | if (Dir->hasClausesOfKind<OMPThreadLimitClause>()) { | ||||
7027 | CGOpenMPInnerExprInfo CGInfo(CGF, *CS); | ||||
7028 | CodeGenFunction::CGCapturedStmtRAII CapInfoRAII(CGF, &CGInfo); | ||||
7029 | const auto *ThreadLimitClause = | ||||
7030 | Dir->getSingleClause<OMPThreadLimitClause>(); | ||||
7031 | CodeGenFunction::LexicalScope Scope( | ||||
7032 | CGF, ThreadLimitClause->getThreadLimit()->getSourceRange()); | ||||
7033 | if (const auto *PreInit = | ||||
7034 | cast_or_null<DeclStmt>(ThreadLimitClause->getPreInitStmt())) { | ||||
7035 | for (const auto *I : PreInit->decls()) { | ||||
7036 | if (!I->hasAttr<OMPCaptureNoInitAttr>()) { | ||||
7037 | CGF.EmitVarDecl(cast<VarDecl>(*I)); | ||||
7038 | } else { | ||||
7039 | CodeGenFunction::AutoVarEmission Emission = | ||||
7040 | CGF.EmitAutoVarAlloca(cast<VarDecl>(*I)); | ||||
7041 | CGF.EmitAutoVarCleanups(Emission); | ||||
7042 | } | ||||
7043 | } | ||||
7044 | } | ||||
7045 | llvm::Value *ThreadLimit = CGF.EmitScalarExpr( | ||||
7046 | ThreadLimitClause->getThreadLimit(), /*IgnoreResultAssign=*/true); | ||||
7047 | ThreadLimitVal = | ||||
7048 | Bld.CreateIntCast(ThreadLimit, CGF.Int32Ty, /*isSigned=*/false); | ||||
7049 | } | ||||
7050 | if (isOpenMPTeamsDirective(Dir->getDirectiveKind()) && | ||||
7051 | !isOpenMPDistributeDirective(Dir->getDirectiveKind())) { | ||||
7052 | CS = Dir->getInnermostCapturedStmt(); | ||||
7053 | const Stmt *Child = CGOpenMPRuntime::getSingleCompoundChild( | ||||
7054 | CGF.getContext(), CS->getCapturedStmt()); | ||||
7055 | Dir = dyn_cast_or_null<OMPExecutableDirective>(Child); | ||||
7056 | } | ||||
7057 | if (Dir && isOpenMPDistributeDirective(Dir->getDirectiveKind()) && | ||||
7058 | !isOpenMPSimdDirective(Dir->getDirectiveKind())) { | ||||
7059 | CS = Dir->getInnermostCapturedStmt(); | ||||
7060 | if (llvm::Value *NumThreads = getNumThreads(CGF, CS, ThreadLimitVal)) | ||||
7061 | return NumThreads; | ||||
7062 | } | ||||
7063 | if (Dir && isOpenMPSimdDirective(Dir->getDirectiveKind())) | ||||
7064 | return Bld.getInt32(1); | ||||
7065 | } | ||||
7066 | return ThreadLimitVal ? ThreadLimitVal : Bld.getInt32(0); | ||||
7067 | } | ||||
7068 | case OMPD_target_teams: { | ||||
7069 | if (D.hasClausesOfKind<OMPThreadLimitClause>()) { | ||||
7070 | CodeGenFunction::RunCleanupsScope ThreadLimitScope(CGF); | ||||
7071 | const auto *ThreadLimitClause = D.getSingleClause<OMPThreadLimitClause>(); | ||||
7072 | llvm::Value *ThreadLimit = CGF.EmitScalarExpr( | ||||
7073 | ThreadLimitClause->getThreadLimit(), /*IgnoreResultAssign=*/true); | ||||
7074 | ThreadLimitVal = | ||||
7075 | Bld.CreateIntCast(ThreadLimit, CGF.Int32Ty, /*isSigned=*/false); | ||||
7076 | } | ||||
7077 | const CapturedStmt *CS = D.getInnermostCapturedStmt(); | ||||
7078 | if (llvm::Value *NumThreads = getNumThreads(CGF, CS, ThreadLimitVal)) | ||||
7079 | return NumThreads; | ||||
7080 | const Stmt *Child = CGOpenMPRuntime::getSingleCompoundChild( | ||||
7081 | CGF.getContext(), CS->getCapturedStmt()); | ||||
7082 | if (const auto *Dir = dyn_cast_or_null<OMPExecutableDirective>(Child)) { | ||||
7083 | if (Dir->getDirectiveKind() == OMPD_distribute) { | ||||
7084 | CS = Dir->getInnermostCapturedStmt(); | ||||
7085 | if (llvm::Value *NumThreads = getNumThreads(CGF, CS, ThreadLimitVal)) | ||||
7086 | return NumThreads; | ||||
7087 | } | ||||
7088 | } | ||||
7089 | return ThreadLimitVal ? ThreadLimitVal : Bld.getInt32(0); | ||||
7090 | } | ||||
7091 | case OMPD_target_teams_distribute: | ||||
7092 | if (D.hasClausesOfKind<OMPThreadLimitClause>()) { | ||||
7093 | CodeGenFunction::RunCleanupsScope ThreadLimitScope(CGF); | ||||
7094 | const auto *ThreadLimitClause = D.getSingleClause<OMPThreadLimitClause>(); | ||||
7095 | llvm::Value *ThreadLimit = CGF.EmitScalarExpr( | ||||
7096 | ThreadLimitClause->getThreadLimit(), /*IgnoreResultAssign=*/true); | ||||
7097 | ThreadLimitVal = | ||||
7098 | Bld.CreateIntCast(ThreadLimit, CGF.Int32Ty, /*isSigned=*/false); | ||||
7099 | } | ||||
7100 | return getNumThreads(CGF, D.getInnermostCapturedStmt(), ThreadLimitVal); | ||||
7101 | case OMPD_target_parallel: | ||||
7102 | case OMPD_target_parallel_for: | ||||
7103 | case OMPD_target_parallel_for_simd: | ||||
7104 | case OMPD_target_teams_distribute_parallel_for: | ||||
7105 | case OMPD_target_teams_distribute_parallel_for_simd: { | ||||
7106 | llvm::Value *CondVal = nullptr; | ||||
7107 | // Handle if clause. If if clause present, the number of threads is | ||||
7108 | // calculated as <cond> ? (<numthreads> ? <numthreads> : 0 ) : 1. | ||||
7109 | if (D.hasClausesOfKind<OMPIfClause>()) { | ||||
7110 | const OMPIfClause *IfClause = nullptr; | ||||
7111 | for (const auto *C : D.getClausesOfKind<OMPIfClause>()) { | ||||
7112 | if (C->getNameModifier() == OMPD_unknown || | ||||
7113 | C->getNameModifier() == OMPD_parallel) { | ||||
7114 | IfClause = C; | ||||
7115 | break; | ||||
7116 | } | ||||
7117 | } | ||||
7118 | if (IfClause) { | ||||
7119 | const Expr *Cond = IfClause->getCondition(); | ||||
7120 | bool Result; | ||||
7121 | if (Cond->EvaluateAsBooleanCondition(Result, CGF.getContext())) { | ||||
7122 | if (!Result) | ||||
7123 | return Bld.getInt32(1); | ||||
7124 | } else { | ||||
7125 | CodeGenFunction::RunCleanupsScope Scope(CGF); | ||||
7126 | CondVal = CGF.EvaluateExprAsBool(Cond); | ||||
7127 | } | ||||
7128 | } | ||||
7129 | } | ||||
7130 | if (D.hasClausesOfKind<OMPThreadLimitClause>()) { | ||||
7131 | CodeGenFunction::RunCleanupsScope ThreadLimitScope(CGF); | ||||
7132 | const auto *ThreadLimitClause = D.getSingleClause<OMPThreadLimitClause>(); | ||||
7133 | llvm::Value *ThreadLimit = CGF.EmitScalarExpr( | ||||
7134 | ThreadLimitClause->getThreadLimit(), /*IgnoreResultAssign=*/true); | ||||
7135 | ThreadLimitVal = | ||||
7136 | Bld.CreateIntCast(ThreadLimit, CGF.Int32Ty, /*isSigned=*/false); | ||||
7137 | } | ||||
7138 | if (D.hasClausesOfKind<OMPNumThreadsClause>()) { | ||||
7139 | CodeGenFunction::RunCleanupsScope NumThreadsScope(CGF); | ||||
7140 | const auto *NumThreadsClause = D.getSingleClause<OMPNumThreadsClause>(); | ||||
7141 | llvm::Value *NumThreads = CGF.EmitScalarExpr( | ||||
7142 | NumThreadsClause->getNumThreads(), /*IgnoreResultAssign=*/true); | ||||
7143 | NumThreadsVal = | ||||
7144 | Bld.CreateIntCast(NumThreads, CGF.Int32Ty, /*isSigned=*/false); | ||||
7145 | ThreadLimitVal = ThreadLimitVal | ||||
7146 | ? Bld.CreateSelect(Bld.CreateICmpULT(NumThreadsVal, | ||||
7147 | ThreadLimitVal), | ||||
7148 | NumThreadsVal, ThreadLimitVal) | ||||
7149 | : NumThreadsVal; | ||||
7150 | } | ||||
7151 | if (!ThreadLimitVal) | ||||
7152 | ThreadLimitVal = Bld.getInt32(0); | ||||
7153 | if (CondVal) | ||||
7154 | return Bld.CreateSelect(CondVal, ThreadLimitVal, Bld.getInt32(1)); | ||||
7155 | return ThreadLimitVal; | ||||
7156 | } | ||||
7157 | case OMPD_target_teams_distribute_simd: | ||||
7158 | case OMPD_target_simd: | ||||
7159 | return Bld.getInt32(1); | ||||
7160 | case OMPD_parallel: | ||||
7161 | case OMPD_for: | ||||
7162 | case OMPD_parallel_for: | ||||
7163 | case OMPD_parallel_master: | ||||
7164 | case OMPD_parallel_sections: | ||||
7165 | case OMPD_for_simd: | ||||
7166 | case OMPD_parallel_for_simd: | ||||
7167 | case OMPD_cancel: | ||||
7168 | case OMPD_cancellation_point: | ||||
7169 | case OMPD_ordered: | ||||
7170 | case OMPD_threadprivate: | ||||
7171 | case OMPD_allocate: | ||||
7172 | case OMPD_task: | ||||
7173 | case OMPD_simd: | ||||
7174 | case OMPD_tile: | ||||
7175 | case OMPD_unroll: | ||||
7176 | case OMPD_sections: | ||||
7177 | case OMPD_section: | ||||
7178 | case OMPD_single: | ||||
7179 | case OMPD_master: | ||||
7180 | case OMPD_critical: | ||||
7181 | case OMPD_taskyield: | ||||
7182 | case OMPD_barrier: | ||||
7183 | case OMPD_taskwait: | ||||
7184 | case OMPD_taskgroup: | ||||
7185 | case OMPD_atomic: | ||||
7186 | case OMPD_flush: | ||||
7187 | case OMPD_depobj: | ||||
7188 | case OMPD_scan: | ||||
7189 | case OMPD_teams: | ||||
7190 | case OMPD_target_data: | ||||
7191 | case OMPD_target_exit_data: | ||||
7192 | case OMPD_target_enter_data: | ||||
7193 | case OMPD_distribute: | ||||
7194 | case OMPD_distribute_simd: | ||||
7195 | case OMPD_distribute_parallel_for: | ||||
7196 | case OMPD_distribute_parallel_for_simd: | ||||
7197 | case OMPD_teams_distribute: | ||||
7198 | case OMPD_teams_distribute_simd: | ||||
7199 | case OMPD_teams_distribute_parallel_for: | ||||
7200 | case OMPD_teams_distribute_parallel_for_simd: | ||||
7201 | case OMPD_target_update: | ||||
7202 | case OMPD_declare_simd: | ||||
7203 | case OMPD_declare_variant: | ||||
7204 | case OMPD_begin_declare_variant: | ||||
7205 | case OMPD_end_declare_variant: | ||||
7206 | case OMPD_declare_target: | ||||
7207 | case OMPD_end_declare_target: | ||||
7208 | case OMPD_declare_reduction: | ||||
7209 | case OMPD_declare_mapper: | ||||
7210 | case OMPD_taskloop: | ||||
7211 | case OMPD_taskloop_simd: | ||||
7212 | case OMPD_master_taskloop: | ||||
7213 | case OMPD_master_taskloop_simd: | ||||
7214 | case OMPD_parallel_master_taskloop: | ||||
7215 | case OMPD_parallel_master_taskloop_simd: | ||||
7216 | case OMPD_requires: | ||||
7217 | case OMPD_unknown: | ||||
7218 | break; | ||||
7219 | default: | ||||
7220 | break; | ||||
7221 | } | ||||
7222 | llvm_unreachable("Unsupported directive kind.")__builtin_unreachable(); | ||||
7223 | } | ||||
7224 | |||||
7225 | namespace { | ||||
7226 | LLVM_ENABLE_BITMASK_ENUMS_IN_NAMESPACE()using ::llvm::BitmaskEnumDetail::operator~; using ::llvm::BitmaskEnumDetail ::operator|; using ::llvm::BitmaskEnumDetail::operator&; using ::llvm::BitmaskEnumDetail::operator^; using ::llvm::BitmaskEnumDetail ::operator|=; using ::llvm::BitmaskEnumDetail::operator&= ; using ::llvm::BitmaskEnumDetail::operator^=; | ||||
7227 | |||||
7228 | // Utility to handle information from clauses associated with a given | ||||
7229 | // construct that use mappable expressions (e.g. 'map' clause, 'to' clause). | ||||
7230 | // It provides a convenient interface to obtain the information and generate | ||||
7231 | // code for that information. | ||||
7232 | class MappableExprsHandler { | ||||
7233 | public: | ||||
7234 | /// Values for bit flags used to specify the mapping type for | ||||
7235 | /// offloading. | ||||
7236 | enum OpenMPOffloadMappingFlags : uint64_t { | ||||
7237 | /// No flags | ||||
7238 | OMP_MAP_NONE = 0x0, | ||||
7239 | /// Allocate memory on the device and move data from host to device. | ||||
7240 | OMP_MAP_TO = 0x01, | ||||
7241 | /// Allocate memory on the device and move data from device to host. | ||||
7242 | OMP_MAP_FROM = 0x02, | ||||
7243 | /// Always perform the requested mapping action on the element, even | ||||
7244 | /// if it was already mapped before. | ||||
7245 | OMP_MAP_ALWAYS = 0x04, | ||||
7246 | /// Delete the element from the device environment, ignoring the | ||||
7247 | /// current reference count associated with the element. | ||||
7248 | OMP_MAP_DELETE = 0x08, | ||||
7249 | /// The element being mapped is a pointer-pointee pair; both the | ||||
7250 | /// pointer and the pointee should be mapped. | ||||
7251 | OMP_MAP_PTR_AND_OBJ = 0x10, | ||||
7252 | /// This flags signals that the base address of an entry should be | ||||
7253 | /// passed to the target kernel as an argument. | ||||
7254 | OMP_MAP_TARGET_PARAM = 0x20, | ||||
7255 | /// Signal that the runtime library has to return the device pointer | ||||
7256 | /// in the current position for the data being mapped. Used when we have the | ||||
7257 | /// use_device_ptr or use_device_addr clause. | ||||
7258 | OMP_MAP_RETURN_PARAM = 0x40, | ||||
7259 | /// This flag signals that the reference being passed is a pointer to | ||||
7260 | /// private data. | ||||
7261 | OMP_MAP_PRIVATE = 0x80, | ||||
7262 | /// Pass the element to the device by value. | ||||
7263 | OMP_MAP_LITERAL = 0x100, | ||||
7264 | /// Implicit map | ||||
7265 | OMP_MAP_IMPLICIT = 0x200, | ||||
7266 | /// Close is a hint to the runtime to allocate memory close to | ||||
7267 | /// the target device. | ||||
7268 | OMP_MAP_CLOSE = 0x400, | ||||
7269 | /// 0x800 is reserved for compatibility with XLC. | ||||
7270 | /// Produce a runtime error if the data is not already allocated. | ||||
7271 | OMP_MAP_PRESENT = 0x1000, | ||||
7272 | /// Signal that the runtime library should use args as an array of | ||||
7273 | /// descriptor_dim pointers and use args_size as dims. Used when we have | ||||
7274 | /// non-contiguous list items in target update directive | ||||
7275 | OMP_MAP_NON_CONTIG = 0x100000000000, | ||||
7276 | /// The 16 MSBs of the flags indicate whether the entry is member of some | ||||
7277 | /// struct/class. | ||||
7278 | OMP_MAP_MEMBER_OF = 0xffff000000000000, | ||||
7279 | LLVM_MARK_AS_BITMASK_ENUM(/* LargestFlag = */ OMP_MAP_MEMBER_OF)LLVM_BITMASK_LARGEST_ENUMERATOR = OMP_MAP_MEMBER_OF, | ||||
7280 | }; | ||||
7281 | |||||
7282 | /// Get the offset of the OMP_MAP_MEMBER_OF field. | ||||
7283 | static unsigned getFlagMemberOffset() { | ||||
7284 | unsigned Offset = 0; | ||||
7285 | for (uint64_t Remain = OMP_MAP_MEMBER_OF; !(Remain & 1); | ||||
7286 | Remain = Remain >> 1) | ||||
7287 | Offset++; | ||||
7288 | return Offset; | ||||
7289 | } | ||||
7290 | |||||
7291 | /// Class that holds debugging information for a data mapping to be passed to | ||||
7292 | /// the runtime library. | ||||
7293 | class MappingExprInfo { | ||||
7294 | /// The variable declaration used for the data mapping. | ||||
7295 | const ValueDecl *MapDecl = nullptr; | ||||
7296 | /// The original expression used in the map clause, or null if there is | ||||
7297 | /// none. | ||||
7298 | const Expr *MapExpr = nullptr; | ||||
7299 | |||||
7300 | public: | ||||
7301 | MappingExprInfo(const ValueDecl *MapDecl, const Expr *MapExpr = nullptr) | ||||
7302 | : MapDecl(MapDecl), MapExpr(MapExpr) {} | ||||
7303 | |||||
7304 | const ValueDecl *getMapDecl() const { return MapDecl; } | ||||
7305 | const Expr *getMapExpr() const { return MapExpr; } | ||||
7306 | }; | ||||
7307 | |||||
7308 | /// Class that associates information with a base pointer to be passed to the | ||||
7309 | /// runtime library. | ||||
7310 | class BasePointerInfo { | ||||
7311 | /// The base pointer. | ||||
7312 | llvm::Value *Ptr = nullptr; | ||||
7313 | /// The base declaration that refers to this device pointer, or null if | ||||
7314 | /// there is none. | ||||
7315 | const ValueDecl *DevPtrDecl = nullptr; | ||||
7316 | |||||
7317 | public: | ||||
7318 | BasePointerInfo(llvm::Value *Ptr, const ValueDecl *DevPtrDecl = nullptr) | ||||
7319 | : Ptr(Ptr), DevPtrDecl(DevPtrDecl) {} | ||||
7320 | llvm::Value *operator*() const { return Ptr; } | ||||
7321 | const ValueDecl *getDevicePtrDecl() const { return DevPtrDecl; } | ||||
7322 | void setDevicePtrDecl(const ValueDecl *D) { DevPtrDecl = D; } | ||||
7323 | }; | ||||
7324 | |||||
7325 | using MapExprsArrayTy = SmallVector<MappingExprInfo, 4>; | ||||
7326 | using MapBaseValuesArrayTy = SmallVector<BasePointerInfo, 4>; | ||||
7327 | using MapValuesArrayTy = SmallVector<llvm::Value *, 4>; | ||||
7328 | using MapFlagsArrayTy = SmallVector<OpenMPOffloadMappingFlags, 4>; | ||||
7329 | using MapMappersArrayTy = SmallVector<const ValueDecl *, 4>; | ||||
7330 | using MapDimArrayTy = SmallVector<uint64_t, 4>; | ||||
7331 | using MapNonContiguousArrayTy = SmallVector<MapValuesArrayTy, 4>; | ||||
7332 | |||||
7333 | /// This structure contains combined information generated for mappable | ||||
7334 | /// clauses, including base pointers, pointers, sizes, map types, user-defined | ||||
7335 | /// mappers, and non-contiguous information. | ||||
7336 | struct MapCombinedInfoTy { | ||||
7337 | struct StructNonContiguousInfo { | ||||
7338 | bool IsNonContiguous = false; | ||||
7339 | MapDimArrayTy Dims; | ||||
7340 | MapNonContiguousArrayTy Offsets; | ||||
7341 | MapNonContiguousArrayTy Counts; | ||||
7342 | MapNonContiguousArrayTy Strides; | ||||
7343 | }; | ||||
7344 | MapExprsArrayTy Exprs; | ||||
7345 | MapBaseValuesArrayTy BasePointers; | ||||
7346 | MapValuesArrayTy Pointers; | ||||
7347 | MapValuesArrayTy Sizes; | ||||
7348 | MapFlagsArrayTy Types; | ||||
7349 | MapMappersArrayTy Mappers; | ||||
7350 | StructNonContiguousInfo NonContigInfo; | ||||
7351 | |||||
7352 | /// Append arrays in \a CurInfo. | ||||
7353 | void append(MapCombinedInfoTy &CurInfo) { | ||||
7354 | Exprs.append(CurInfo.Exprs.begin(), CurInfo.Exprs.end()); | ||||
7355 | BasePointers.append(CurInfo.BasePointers.begin(), | ||||
7356 | CurInfo.BasePointers.end()); | ||||
7357 | Pointers.append(CurInfo.Pointers.begin(), CurInfo.Pointers.end()); | ||||
7358 | Sizes.append(CurInfo.Sizes.begin(), CurInfo.Sizes.end()); | ||||
7359 | Types.append(CurInfo.Types.begin(), CurInfo.Types.end()); | ||||
7360 | Mappers.append(CurInfo.Mappers.begin(), CurInfo.Mappers.end()); | ||||
7361 | NonContigInfo.Dims.append(CurInfo.NonContigInfo.Dims.begin(), | ||||
7362 | CurInfo.NonContigInfo.Dims.end()); | ||||
7363 | NonContigInfo.Offsets.append(CurInfo.NonContigInfo.Offsets.begin(), | ||||
7364 | CurInfo.NonContigInfo.Offsets.end()); | ||||
7365 | NonContigInfo.Counts.append(CurInfo.NonContigInfo.Counts.begin(), | ||||
7366 | CurInfo.NonContigInfo.Counts.end()); | ||||
7367 | NonContigInfo.Strides.append(CurInfo.NonContigInfo.Strides.begin(), | ||||
7368 | CurInfo.NonContigInfo.Strides.end()); | ||||
7369 | } | ||||
7370 | }; | ||||
7371 | |||||
7372 | /// Map between a struct and the its lowest & highest elements which have been | ||||
7373 | /// mapped. | ||||
7374 | /// [ValueDecl *] --> {LE(FieldIndex, Pointer), | ||||
7375 | /// HE(FieldIndex, Pointer)} | ||||
7376 | struct StructRangeInfoTy { | ||||
7377 | MapCombinedInfoTy PreliminaryMapData; | ||||
7378 | std::pair<unsigned /*FieldIndex*/, Address /*Pointer*/> LowestElem = { | ||||
7379 | 0, Address::invalid()}; | ||||
7380 | std::pair<unsigned /*FieldIndex*/, Address /*Pointer*/> HighestElem = { | ||||
7381 | 0, Address::invalid()}; | ||||
7382 | Address Base = Address::invalid(); | ||||
7383 | Address LB = Address::invalid(); | ||||
7384 | bool IsArraySection = false; | ||||
7385 | bool HasCompleteRecord = false; | ||||
7386 | }; | ||||
7387 | |||||
7388 | private: | ||||
7389 | /// Kind that defines how a device pointer has to be returned. | ||||
7390 | struct MapInfo { | ||||
7391 | OMPClauseMappableExprCommon::MappableExprComponentListRef Components; | ||||
7392 | OpenMPMapClauseKind MapType = OMPC_MAP_unknown; | ||||
7393 | ArrayRef<OpenMPMapModifierKind> MapModifiers; | ||||
7394 | ArrayRef<OpenMPMotionModifierKind> MotionModifiers; | ||||
7395 | bool ReturnDevicePointer = false; | ||||
7396 | bool IsImplicit = false; | ||||
7397 | const ValueDecl *Mapper = nullptr; | ||||
7398 | const Expr *VarRef = nullptr; | ||||
7399 | bool ForDeviceAddr = false; | ||||
7400 | |||||
7401 | MapInfo() = default; | ||||
7402 | MapInfo( | ||||
7403 | OMPClauseMappableExprCommon::MappableExprComponentListRef Components, | ||||
7404 | OpenMPMapClauseKind MapType, | ||||
7405 | ArrayRef<OpenMPMapModifierKind> MapModifiers, | ||||
7406 | ArrayRef<OpenMPMotionModifierKind> MotionModifiers, | ||||
7407 | bool ReturnDevicePointer, bool IsImplicit, | ||||
7408 | const ValueDecl *Mapper = nullptr, const Expr *VarRef = nullptr, | ||||
7409 | bool ForDeviceAddr = false) | ||||
7410 | : Components(Components), MapType(MapType), MapModifiers(MapModifiers), | ||||
7411 | MotionModifiers(MotionModifiers), | ||||
7412 | ReturnDevicePointer(ReturnDevicePointer), IsImplicit(IsImplicit), | ||||
7413 | Mapper(Mapper), VarRef(VarRef), ForDeviceAddr(ForDeviceAddr) {} | ||||
7414 | }; | ||||
7415 | |||||
7416 | /// If use_device_ptr or use_device_addr is used on a decl which is a struct | ||||
7417 | /// member and there is no map information about it, then emission of that | ||||
7418 | /// entry is deferred until the whole struct has been processed. | ||||
7419 | struct DeferredDevicePtrEntryTy { | ||||
7420 | const Expr *IE = nullptr; | ||||
7421 | const ValueDecl *VD = nullptr; | ||||
7422 | bool ForDeviceAddr = false; | ||||
7423 | |||||
7424 | DeferredDevicePtrEntryTy(const Expr *IE, const ValueDecl *VD, | ||||
7425 | bool ForDeviceAddr) | ||||
7426 | : IE(IE), VD(VD), ForDeviceAddr(ForDeviceAddr) {} | ||||
7427 | }; | ||||
7428 | |||||
7429 | /// The target directive from where the mappable clauses were extracted. It | ||||
7430 | /// is either a executable directive or a user-defined mapper directive. | ||||
7431 | llvm::PointerUnion<const OMPExecutableDirective *, | ||||
7432 | const OMPDeclareMapperDecl *> | ||||
7433 | CurDir; | ||||
7434 | |||||
7435 | /// Function the directive is being generated for. | ||||
7436 | CodeGenFunction &CGF; | ||||
7437 | |||||
7438 | /// Set of all first private variables in the current directive. | ||||
7439 | /// bool data is set to true if the variable is implicitly marked as | ||||
7440 | /// firstprivate, false otherwise. | ||||
7441 | llvm::DenseMap<CanonicalDeclPtr<const VarDecl>, bool> FirstPrivateDecls; | ||||
7442 | |||||
7443 | /// Map between device pointer declarations and their expression components. | ||||
7444 | /// The key value for declarations in 'this' is null. | ||||
7445 | llvm::DenseMap< | ||||
7446 | const ValueDecl *, | ||||
7447 | SmallVector<OMPClauseMappableExprCommon::MappableExprComponentListRef, 4>> | ||||
7448 | DevPointersMap; | ||||
7449 | |||||
7450 | llvm::Value *getExprTypeSize(const Expr *E) const { | ||||
7451 | QualType ExprTy = E->getType().getCanonicalType(); | ||||
7452 | |||||
7453 | // Calculate the size for array shaping expression. | ||||
7454 | if (const auto *OAE = dyn_cast<OMPArrayShapingExpr>(E)) { | ||||
7455 | llvm::Value *Size = | ||||
7456 | CGF.getTypeSize(OAE->getBase()->getType()->getPointeeType()); | ||||
7457 | for (const Expr *SE : OAE->getDimensions()) { | ||||
7458 | llvm::Value *Sz = CGF.EmitScalarExpr(SE); | ||||
7459 | Sz = CGF.EmitScalarConversion(Sz, SE->getType(), | ||||
7460 | CGF.getContext().getSizeType(), | ||||
7461 | SE->getExprLoc()); | ||||
7462 | Size = CGF.Builder.CreateNUWMul(Size, Sz); | ||||
7463 | } | ||||
7464 | return Size; | ||||
7465 | } | ||||
7466 | |||||
7467 | // Reference types are ignored for mapping purposes. | ||||
7468 | if (const auto *RefTy = ExprTy->getAs<ReferenceType>()) | ||||
7469 | ExprTy = RefTy->getPointeeType().getCanonicalType(); | ||||
7470 | |||||
7471 | // Given that an array section is considered a built-in type, we need to | ||||
7472 | // do the calculation based on the length of the section instead of relying | ||||
7473 | // on CGF.getTypeSize(E->getType()). | ||||
7474 | if (const auto *OAE = dyn_cast<OMPArraySectionExpr>(E)) { | ||||
7475 | QualType BaseTy = OMPArraySectionExpr::getBaseOriginalType( | ||||
7476 | OAE->getBase()->IgnoreParenImpCasts()) | ||||
7477 | .getCanonicalType(); | ||||
7478 | |||||
7479 | // If there is no length associated with the expression and lower bound is | ||||
7480 | // not specified too, that means we are using the whole length of the | ||||
7481 | // base. | ||||
7482 | if (!OAE->getLength() && OAE->getColonLocFirst().isValid() && | ||||
7483 | !OAE->getLowerBound()) | ||||
7484 | return CGF.getTypeSize(BaseTy); | ||||
7485 | |||||
7486 | llvm::Value *ElemSize; | ||||
7487 | if (const auto *PTy = BaseTy->getAs<PointerType>()) { | ||||
7488 | ElemSize = CGF.getTypeSize(PTy->getPointeeType().getCanonicalType()); | ||||
7489 | } else { | ||||
7490 | const auto *ATy = cast<ArrayType>(BaseTy.getTypePtr()); | ||||
7491 | assert(ATy && "Expecting array type if not a pointer type.")((void)0); | ||||
7492 | ElemSize = CGF.getTypeSize(ATy->getElementType().getCanonicalType()); | ||||
7493 | } | ||||
7494 | |||||
7495 | // If we don't have a length at this point, that is because we have an | ||||
7496 | // array section with a single element. | ||||
7497 | if (!OAE->getLength() && OAE->getColonLocFirst().isInvalid()) | ||||
7498 | return ElemSize; | ||||
7499 | |||||
7500 | if (const Expr *LenExpr = OAE->getLength()) { | ||||
7501 | llvm::Value *LengthVal = CGF.EmitScalarExpr(LenExpr); | ||||
7502 | LengthVal = CGF.EmitScalarConversion(LengthVal, LenExpr->getType(), | ||||
7503 | CGF.getContext().getSizeType(), | ||||
7504 | LenExpr->getExprLoc()); | ||||
7505 | return CGF.Builder.CreateNUWMul(LengthVal, ElemSize); | ||||
7506 | } | ||||
7507 | assert(!OAE->getLength() && OAE->getColonLocFirst().isValid() &&((void)0) | ||||
7508 | OAE->getLowerBound() && "expected array_section[lb:].")((void)0); | ||||
7509 | // Size = sizetype - lb * elemtype; | ||||
7510 | llvm::Value *LengthVal = CGF.getTypeSize(BaseTy); | ||||
7511 | llvm::Value *LBVal = CGF.EmitScalarExpr(OAE->getLowerBound()); | ||||
7512 | LBVal = CGF.EmitScalarConversion(LBVal, OAE->getLowerBound()->getType(), | ||||
7513 | CGF.getContext().getSizeType(), | ||||
7514 | OAE->getLowerBound()->getExprLoc()); | ||||
7515 | LBVal = CGF.Builder.CreateNUWMul(LBVal, ElemSize); | ||||
7516 | llvm::Value *Cmp = CGF.Builder.CreateICmpUGT(LengthVal, LBVal); | ||||
7517 | llvm::Value *TrueVal = CGF.Builder.CreateNUWSub(LengthVal, LBVal); | ||||
7518 | LengthVal = CGF.Builder.CreateSelect( | ||||
7519 | Cmp, TrueVal, llvm::ConstantInt::get(CGF.SizeTy, 0)); | ||||
7520 | return LengthVal; | ||||
7521 | } | ||||
7522 | return CGF.getTypeSize(ExprTy); | ||||
7523 | } | ||||
7524 | |||||
7525 | /// Return the corresponding bits for a given map clause modifier. Add | ||||
7526 | /// a flag marking the map as a pointer if requested. Add a flag marking the | ||||
7527 | /// map as the first one of a series of maps that relate to the same map | ||||
7528 | /// expression. | ||||
7529 | OpenMPOffloadMappingFlags getMapTypeBits( | ||||
7530 | OpenMPMapClauseKind MapType, ArrayRef<OpenMPMapModifierKind> MapModifiers, | ||||
7531 | ArrayRef<OpenMPMotionModifierKind> MotionModifiers, bool IsImplicit, | ||||
7532 | bool AddPtrFlag, bool AddIsTargetParamFlag, bool IsNonContiguous) const { | ||||
7533 | OpenMPOffloadMappingFlags Bits = | ||||
7534 | IsImplicit ? OMP_MAP_IMPLICIT : OMP_MAP_NONE; | ||||
7535 | switch (MapType) { | ||||
7536 | case OMPC_MAP_alloc: | ||||
7537 | case OMPC_MAP_release: | ||||
7538 | // alloc and release is the default behavior in the runtime library, i.e. | ||||
7539 | // if we don't pass any bits alloc/release that is what the runtime is | ||||
7540 | // going to do. Therefore, we don't need to signal anything for these two | ||||
7541 | // type modifiers. | ||||
7542 | break; | ||||
7543 | case OMPC_MAP_to: | ||||
7544 | Bits |= OMP_MAP_TO; | ||||
7545 | break; | ||||
7546 | case OMPC_MAP_from: | ||||
7547 | Bits |= OMP_MAP_FROM; | ||||
7548 | break; | ||||
7549 | case OMPC_MAP_tofrom: | ||||
7550 | Bits |= OMP_MAP_TO | OMP_MAP_FROM; | ||||
7551 | break; | ||||
7552 | case OMPC_MAP_delete: | ||||
7553 | Bits |= OMP_MAP_DELETE; | ||||
7554 | break; | ||||
7555 | case OMPC_MAP_unknown: | ||||
7556 | llvm_unreachable("Unexpected map type!")__builtin_unreachable(); | ||||
7557 | } | ||||
7558 | if (AddPtrFlag) | ||||
7559 | Bits |= OMP_MAP_PTR_AND_OBJ; | ||||
7560 | if (AddIsTargetParamFlag) | ||||
7561 | Bits |= OMP_MAP_TARGET_PARAM; | ||||
7562 | if (llvm::find(MapModifiers, OMPC_MAP_MODIFIER_always) | ||||
7563 | != MapModifiers.end()) | ||||
7564 | Bits |= OMP_MAP_ALWAYS; | ||||
7565 | if (llvm::find(MapModifiers, OMPC_MAP_MODIFIER_close) | ||||
7566 | != MapModifiers.end()) | ||||
7567 | Bits |= OMP_MAP_CLOSE; | ||||
7568 | if (llvm::find(MapModifiers, OMPC_MAP_MODIFIER_present) != | ||||
7569 | MapModifiers.end() || | ||||
7570 | llvm::find(MotionModifiers, OMPC_MOTION_MODIFIER_present) != | ||||
7571 | MotionModifiers.end()) | ||||
7572 | Bits |= OMP_MAP_PRESENT; | ||||
7573 | if (IsNonContiguous) | ||||
7574 | Bits |= OMP_MAP_NON_CONTIG; | ||||
7575 | return Bits; | ||||
7576 | } | ||||
7577 | |||||
7578 | /// Return true if the provided expression is a final array section. A | ||||
7579 | /// final array section, is one whose length can't be proved to be one. | ||||
7580 | bool isFinalArraySectionExpression(const Expr *E) const { | ||||
7581 | const auto *OASE = dyn_cast<OMPArraySectionExpr>(E); | ||||
7582 | |||||
7583 | // It is not an array section and therefore not a unity-size one. | ||||
7584 | if (!OASE) | ||||
7585 | return false; | ||||
7586 | |||||
7587 | // An array section with no colon always refer to a single element. | ||||
7588 | if (OASE->getColonLocFirst().isInvalid()) | ||||
7589 | return false; | ||||
7590 | |||||
7591 | const Expr *Length = OASE->getLength(); | ||||
7592 | |||||
7593 | // If we don't have a length we have to check if the array has size 1 | ||||
7594 | // for this dimension. Also, we should always expect a length if the | ||||
7595 | // base type is pointer. | ||||
7596 | if (!Length) { | ||||
7597 | QualType BaseQTy = OMPArraySectionExpr::getBaseOriginalType( | ||||
7598 | OASE->getBase()->IgnoreParenImpCasts()) | ||||
7599 | .getCanonicalType(); | ||||
7600 | if (const auto *ATy = dyn_cast<ConstantArrayType>(BaseQTy.getTypePtr())) | ||||
7601 | return ATy->getSize().getSExtValue() != 1; | ||||
7602 | // If we don't have a constant dimension length, we have to consider | ||||
7603 | // the current section as having any size, so it is not necessarily | ||||
7604 | // unitary. If it happen to be unity size, that's user fault. | ||||
7605 | return true; | ||||
7606 | } | ||||
7607 | |||||
7608 | // Check if the length evaluates to 1. | ||||
7609 | Expr::EvalResult Result; | ||||
7610 | if (!Length->EvaluateAsInt(Result, CGF.getContext())) | ||||
7611 | return true; // Can have more that size 1. | ||||
7612 | |||||
7613 | llvm::APSInt ConstLength = Result.Val.getInt(); | ||||
7614 | return ConstLength.getSExtValue() != 1; | ||||
7615 | } | ||||
7616 | |||||
7617 | /// Generate the base pointers, section pointers, sizes, map type bits, and | ||||
7618 | /// user-defined mappers (all included in \a CombinedInfo) for the provided | ||||
7619 | /// map type, map or motion modifiers, and expression components. | ||||
7620 | /// \a IsFirstComponent should be set to true if the provided set of | ||||
7621 | /// components is the first associated with a capture. | ||||
7622 | void generateInfoForComponentList( | ||||
7623 | OpenMPMapClauseKind MapType, ArrayRef<OpenMPMapModifierKind> MapModifiers, | ||||
7624 | ArrayRef<OpenMPMotionModifierKind> MotionModifiers, | ||||
7625 | OMPClauseMappableExprCommon::MappableExprComponentListRef Components, | ||||
7626 | MapCombinedInfoTy &CombinedInfo, StructRangeInfoTy &PartialStruct, | ||||
7627 | bool IsFirstComponentList, bool IsImplicit, | ||||
7628 | const ValueDecl *Mapper = nullptr, bool ForDeviceAddr = false, | ||||
7629 | const ValueDecl *BaseDecl = nullptr, const Expr *MapExpr = nullptr, | ||||
7630 | ArrayRef<OMPClauseMappableExprCommon::MappableExprComponentListRef> | ||||
7631 | OverlappedElements = llvm::None) const { | ||||
7632 | // The following summarizes what has to be generated for each map and the | ||||
7633 | // types below. The generated information is expressed in this order: | ||||
7634 | // base pointer, section pointer, size, flags | ||||
7635 | // (to add to the ones that come from the map type and modifier). | ||||
7636 | // | ||||
7637 | // double d; | ||||
7638 | // int i[100]; | ||||
7639 | // float *p; | ||||
7640 | // | ||||
7641 | // struct S1 { | ||||
7642 | // int i; | ||||
7643 | // float f[50]; | ||||
7644 | // } | ||||
7645 | // struct S2 { | ||||
7646 | // int i; | ||||
7647 | // float f[50]; | ||||
7648 | // S1 s; | ||||
7649 | // double *p; | ||||
7650 | // struct S2 *ps; | ||||
7651 | // int &ref; | ||||
7652 | // } | ||||
7653 | // S2 s; | ||||
7654 | // S2 *ps; | ||||
7655 | // | ||||
7656 | // map(d) | ||||
7657 | // &d, &d, sizeof(double), TARGET_PARAM | TO | FROM | ||||
7658 | // | ||||
7659 | // map(i) | ||||
7660 | // &i, &i, 100*sizeof(int), TARGET_PARAM | TO | FROM | ||||
7661 | // | ||||
7662 | // map(i[1:23]) | ||||
7663 | // &i(=&i[0]), &i[1], 23*sizeof(int), TARGET_PARAM | TO | FROM | ||||
7664 | // | ||||
7665 | // map(p) | ||||
7666 | // &p, &p, sizeof(float*), TARGET_PARAM | TO | FROM | ||||
7667 | // | ||||
7668 | // map(p[1:24]) | ||||
7669 | // &p, &p[1], 24*sizeof(float), TARGET_PARAM | TO | FROM | PTR_AND_OBJ | ||||
7670 | // in unified shared memory mode or for local pointers | ||||
7671 | // p, &p[1], 24*sizeof(float), TARGET_PARAM | TO | FROM | ||||
7672 | // | ||||
7673 | // map(s) | ||||
7674 | // &s, &s, sizeof(S2), TARGET_PARAM | TO | FROM | ||||
7675 | // | ||||
7676 | // map(s.i) | ||||
7677 | // &s, &(s.i), sizeof(int), TARGET_PARAM | TO | FROM | ||||
7678 | // | ||||
7679 | // map(s.s.f) | ||||
7680 | // &s, &(s.s.f[0]), 50*sizeof(float), TARGET_PARAM | TO | FROM | ||||
7681 | // | ||||
7682 | // map(s.p) | ||||
7683 | // &s, &(s.p), sizeof(double*), TARGET_PARAM | TO | FROM | ||||
7684 | // | ||||
7685 | // map(to: s.p[:22]) | ||||
7686 | // &s, &(s.p), sizeof(double*), TARGET_PARAM (*) | ||||
7687 | // &s, &(s.p), sizeof(double*), MEMBER_OF(1) (**) | ||||
7688 | // &(s.p), &(s.p[0]), 22*sizeof(double), | ||||
7689 | // MEMBER_OF(1) | PTR_AND_OBJ | TO (***) | ||||
7690 | // (*) alloc space for struct members, only this is a target parameter | ||||
7691 | // (**) map the pointer (nothing to be mapped in this example) (the compiler | ||||
7692 | // optimizes this entry out, same in the examples below) | ||||
7693 | // (***) map the pointee (map: to) | ||||
7694 | // | ||||
7695 | // map(to: s.ref) | ||||
7696 | // &s, &(s.ref), sizeof(int*), TARGET_PARAM (*) | ||||
7697 | // &s, &(s.ref), sizeof(int), MEMBER_OF(1) | PTR_AND_OBJ | TO (***) | ||||
7698 | // (*) alloc space for struct members, only this is a target parameter | ||||
7699 | // (**) map the pointer (nothing to be mapped in this example) (the compiler | ||||
7700 | // optimizes this entry out, same in the examples below) | ||||
7701 | // (***) map the pointee (map: to) | ||||
7702 | // | ||||
7703 | // map(s.ps) | ||||
7704 | // &s, &(s.ps), sizeof(S2*), TARGET_PARAM | TO | FROM | ||||
7705 | // | ||||
7706 | // map(from: s.ps->s.i) | ||||
7707 | // &s, &(s.ps), sizeof(S2*), TARGET_PARAM | ||||
7708 | // &s, &(s.ps), sizeof(S2*), MEMBER_OF(1) | ||||
7709 | // &(s.ps), &(s.ps->s.i), sizeof(int), MEMBER_OF(1) | PTR_AND_OBJ | FROM | ||||
7710 | // | ||||
7711 | // map(to: s.ps->ps) | ||||
7712 | // &s, &(s.ps), sizeof(S2*), TARGET_PARAM | ||||
7713 | // &s, &(s.ps), sizeof(S2*), MEMBER_OF(1) | ||||
7714 | // &(s.ps), &(s.ps->ps), sizeof(S2*), MEMBER_OF(1) | PTR_AND_OBJ | TO | ||||
7715 | // | ||||
7716 | // map(s.ps->ps->ps) | ||||
7717 | // &s, &(s.ps), sizeof(S2*), TARGET_PARAM | ||||
7718 | // &s, &(s.ps), sizeof(S2*), MEMBER_OF(1) | ||||
7719 | // &(s.ps), &(s.ps->ps), sizeof(S2*), MEMBER_OF(1) | PTR_AND_OBJ | ||||
7720 | // &(s.ps->ps), &(s.ps->ps->ps), sizeof(S2*), PTR_AND_OBJ | TO | FROM | ||||
7721 | // | ||||
7722 | // map(to: s.ps->ps->s.f[:22]) | ||||
7723 | // &s, &(s.ps), sizeof(S2*), TARGET_PARAM | ||||
7724 | // &s, &(s.ps), sizeof(S2*), MEMBER_OF(1) | ||||
7725 | // &(s.ps), &(s.ps->ps), sizeof(S2*), MEMBER_OF(1) | PTR_AND_OBJ | ||||
7726 | // &(s.ps->ps), &(s.ps->ps->s.f[0]), 22*sizeof(float), PTR_AND_OBJ | TO | ||||
7727 | // | ||||
7728 | // map(ps) | ||||
7729 | // &ps, &ps, sizeof(S2*), TARGET_PARAM | TO | FROM | ||||
7730 | // | ||||
7731 | // map(ps->i) | ||||
7732 | // ps, &(ps->i), sizeof(int), TARGET_PARAM | TO | FROM | ||||
7733 | // | ||||
7734 | // map(ps->s.f) | ||||
7735 | // ps, &(ps->s.f[0]), 50*sizeof(float), TARGET_PARAM | TO | FROM | ||||
7736 | // | ||||
7737 | // map(from: ps->p) | ||||
7738 | // ps, &(ps->p), sizeof(double*), TARGET_PARAM | FROM | ||||
7739 | // | ||||
7740 | // map(to: ps->p[:22]) | ||||
7741 | // ps, &(ps->p), sizeof(double*), TARGET_PARAM | ||||
7742 | // ps, &(ps->p), sizeof(double*), MEMBER_OF(1) | ||||
7743 | // &(ps->p), &(ps->p[0]), 22*sizeof(double), MEMBER_OF(1) | PTR_AND_OBJ | TO | ||||
7744 | // | ||||
7745 | // map(ps->ps) | ||||
7746 | // ps, &(ps->ps), sizeof(S2*), TARGET_PARAM | TO | FROM | ||||
7747 | // | ||||
7748 | // map(from: ps->ps->s.i) | ||||
7749 | // ps, &(ps->ps), sizeof(S2*), TARGET_PARAM | ||||
7750 | // ps, &(ps->ps), sizeof(S2*), MEMBER_OF(1) | ||||
7751 | // &(ps->ps), &(ps->ps->s.i), sizeof(int), MEMBER_OF(1) | PTR_AND_OBJ | FROM | ||||
7752 | // | ||||
7753 | // map(from: ps->ps->ps) | ||||
7754 | // ps, &(ps->ps), sizeof(S2*), TARGET_PARAM | ||||
7755 | // ps, &(ps->ps), sizeof(S2*), MEMBER_OF(1) | ||||
7756 | // &(ps->ps), &(ps->ps->ps), sizeof(S2*), MEMBER_OF(1) | PTR_AND_OBJ | FROM | ||||
7757 | // | ||||
7758 | // map(ps->ps->ps->ps) | ||||
7759 | // ps, &(ps->ps), sizeof(S2*), TARGET_PARAM | ||||
7760 | // ps, &(ps->ps), sizeof(S2*), MEMBER_OF(1) | ||||
7761 | // &(ps->ps), &(ps->ps->ps), sizeof(S2*), MEMBER_OF(1) | PTR_AND_OBJ | ||||
7762 | // &(ps->ps->ps), &(ps->ps->ps->ps), sizeof(S2*), PTR_AND_OBJ | TO | FROM | ||||
7763 | // | ||||
7764 | // map(to: ps->ps->ps->s.f[:22]) | ||||
7765 | // ps, &(ps->ps), sizeof(S2*), TARGET_PARAM | ||||
7766 | // ps, &(ps->ps), sizeof(S2*), MEMBER_OF(1) | ||||
7767 | // &(ps->ps), &(ps->ps->ps), sizeof(S2*), MEMBER_OF(1) | PTR_AND_OBJ | ||||
7768 | // &(ps->ps->ps), &(ps->ps->ps->s.f[0]), 22*sizeof(float), PTR_AND_OBJ | TO | ||||
7769 | // | ||||
7770 | // map(to: s.f[:22]) map(from: s.p[:33]) | ||||
7771 | // &s, &(s.f[0]), 50*sizeof(float) + sizeof(struct S1) + | ||||
7772 | // sizeof(double*) (**), TARGET_PARAM | ||||
7773 | // &s, &(s.f[0]), 22*sizeof(float), MEMBER_OF(1) | TO | ||||
7774 | // &s, &(s.p), sizeof(double*), MEMBER_OF(1) | ||||
7775 | // &(s.p), &(s.p[0]), 33*sizeof(double), MEMBER_OF(1) | PTR_AND_OBJ | FROM | ||||
7776 | // (*) allocate contiguous space needed to fit all mapped members even if | ||||
7777 | // we allocate space for members not mapped (in this example, | ||||
7778 | // s.f[22..49] and s.s are not mapped, yet we must allocate space for | ||||
7779 | // them as well because they fall between &s.f[0] and &s.p) | ||||
7780 | // | ||||
7781 | // map(from: s.f[:22]) map(to: ps->p[:33]) | ||||
7782 | // &s, &(s.f[0]), 22*sizeof(float), TARGET_PARAM | FROM | ||||
7783 | // ps, &(ps->p), sizeof(S2*), TARGET_PARAM | ||||
7784 | // ps, &(ps->p), sizeof(double*), MEMBER_OF(2) (*) | ||||
7785 | // &(ps->p), &(ps->p[0]), 33*sizeof(double), MEMBER_OF(2) | PTR_AND_OBJ | TO | ||||
7786 | // (*) the struct this entry pertains to is the 2nd element in the list of | ||||
7787 | // arguments, hence MEMBER_OF(2) | ||||
7788 | // | ||||
7789 | // map(from: s.f[:22], s.s) map(to: ps->p[:33]) | ||||
7790 | // &s, &(s.f[0]), 50*sizeof(float) + sizeof(struct S1), TARGET_PARAM | ||||
7791 | // &s, &(s.f[0]), 22*sizeof(float), MEMBER_OF(1) | FROM | ||||
7792 | // &s, &(s.s), sizeof(struct S1), MEMBER_OF(1) | FROM | ||||
7793 | // ps, &(ps->p), sizeof(S2*), TARGET_PARAM | ||||
7794 | // ps, &(ps->p), sizeof(double*), MEMBER_OF(4) (*) | ||||
7795 | // &(ps->p), &(ps->p[0]), 33*sizeof(double), MEMBER_OF(4) | PTR_AND_OBJ | TO | ||||
7796 | // (*) the struct this entry pertains to is the 4th element in the list | ||||
7797 | // of arguments, hence MEMBER_OF(4) | ||||
7798 | |||||
7799 | // Track if the map information being generated is the first for a capture. | ||||
7800 | bool IsCaptureFirstInfo = IsFirstComponentList; | ||||
7801 | // When the variable is on a declare target link or in a to clause with | ||||
7802 | // unified memory, a reference is needed to hold the host/device address | ||||
7803 | // of the variable. | ||||
7804 | bool RequiresReference = false; | ||||
7805 | |||||
7806 | // Scan the components from the base to the complete expression. | ||||
7807 | auto CI = Components.rbegin(); | ||||
7808 | auto CE = Components.rend(); | ||||
7809 | auto I = CI; | ||||
7810 | |||||
7811 | // Track if the map information being generated is the first for a list of | ||||
7812 | // components. | ||||
7813 | bool IsExpressionFirstInfo = true; | ||||
7814 | bool FirstPointerInComplexData = false; | ||||
7815 | Address BP = Address::invalid(); | ||||
7816 | const Expr *AssocExpr = I->getAssociatedExpression(); | ||||
7817 | const auto *AE = dyn_cast<ArraySubscriptExpr>(AssocExpr); | ||||
7818 | const auto *OASE = dyn_cast<OMPArraySectionExpr>(AssocExpr); | ||||
7819 | const auto *OAShE = dyn_cast<OMPArrayShapingExpr>(AssocExpr); | ||||
7820 | |||||
7821 | if (isa<MemberExpr>(AssocExpr)) { | ||||
7822 | // The base is the 'this' pointer. The content of the pointer is going | ||||
7823 | // to be the base of the field being mapped. | ||||
7824 | BP = CGF.LoadCXXThisAddress(); | ||||
7825 | } else if ((AE && isa<CXXThisExpr>(AE->getBase()->IgnoreParenImpCasts())) || | ||||
7826 | (OASE && | ||||
7827 | isa<CXXThisExpr>(OASE->getBase()->IgnoreParenImpCasts()))) { | ||||
7828 | BP = CGF.EmitOMPSharedLValue(AssocExpr).getAddress(CGF); | ||||
7829 | } else if (OAShE && | ||||
7830 | isa<CXXThisExpr>(OAShE->getBase()->IgnoreParenCasts())) { | ||||
7831 | BP = Address( | ||||
7832 | CGF.EmitScalarExpr(OAShE->getBase()), | ||||
7833 | CGF.getContext().getTypeAlignInChars(OAShE->getBase()->getType())); | ||||
7834 | } else { | ||||
7835 | // The base is the reference to the variable. | ||||
7836 | // BP = &Var. | ||||
7837 | BP = CGF.EmitOMPSharedLValue(AssocExpr).getAddress(CGF); | ||||
7838 | if (const auto *VD = | ||||
7839 | dyn_cast_or_null<VarDecl>(I->getAssociatedDeclaration())) { | ||||
7840 | if (llvm::Optional<OMPDeclareTargetDeclAttr::MapTypeTy> Res = | ||||
7841 | OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD)) { | ||||
7842 | if ((*Res == OMPDeclareTargetDeclAttr::MT_Link) || | ||||
7843 | (*Res == OMPDeclareTargetDeclAttr::MT_To && | ||||
7844 | CGF.CGM.getOpenMPRuntime().hasRequiresUnifiedSharedMemory())) { | ||||
7845 | RequiresReference = true; | ||||
7846 | BP = CGF.CGM.getOpenMPRuntime().getAddrOfDeclareTargetVar(VD); | ||||
7847 | } | ||||
7848 | } | ||||
7849 | } | ||||
7850 | |||||
7851 | // If the variable is a pointer and is being dereferenced (i.e. is not | ||||
7852 | // the last component), the base has to be the pointer itself, not its | ||||
7853 | // reference. References are ignored for mapping purposes. | ||||
7854 | QualType Ty = | ||||
7855 | I->getAssociatedDeclaration()->getType().getNonReferenceType(); | ||||
7856 | if (Ty->isAnyPointerType() && std::next(I) != CE) { | ||||
7857 | // No need to generate individual map information for the pointer, it | ||||
7858 | // can be associated with the combined storage if shared memory mode is | ||||
7859 | // active or the base declaration is not global variable. | ||||
7860 | const auto *VD = dyn_cast<VarDecl>(I->getAssociatedDeclaration()); | ||||
7861 | if (CGF.CGM.getOpenMPRuntime().hasRequiresUnifiedSharedMemory() || | ||||
7862 | !VD || VD->hasLocalStorage()) | ||||
7863 | BP = CGF.EmitLoadOfPointer(BP, Ty->castAs<PointerType>()); | ||||
7864 | else | ||||
7865 | FirstPointerInComplexData = true; | ||||
7866 | ++I; | ||||
7867 | } | ||||
7868 | } | ||||
7869 | |||||
7870 | // Track whether a component of the list should be marked as MEMBER_OF some | ||||
7871 | // combined entry (for partial structs). Only the first PTR_AND_OBJ entry | ||||
7872 | // in a component list should be marked as MEMBER_OF, all subsequent entries | ||||
7873 | // do not belong to the base struct. E.g. | ||||
7874 | // struct S2 s; | ||||
7875 | // s.ps->ps->ps->f[:] | ||||
7876 | // (1) (2) (3) (4) | ||||
7877 | // ps(1) is a member pointer, ps(2) is a pointee of ps(1), so it is a | ||||
7878 | // PTR_AND_OBJ entry; the PTR is ps(1), so MEMBER_OF the base struct. ps(3) | ||||
7879 | // is the pointee of ps(2) which is not member of struct s, so it should not | ||||
7880 | // be marked as such (it is still PTR_AND_OBJ). | ||||
7881 | // The variable is initialized to false so that PTR_AND_OBJ entries which | ||||
7882 | // are not struct members are not considered (e.g. array of pointers to | ||||
7883 | // data). | ||||
7884 | bool ShouldBeMemberOf = false; | ||||
7885 | |||||
7886 | // Variable keeping track of whether or not we have encountered a component | ||||
7887 | // in the component list which is a member expression. Useful when we have a | ||||
7888 | // pointer or a final array section, in which case it is the previous | ||||
7889 | // component in the list which tells us whether we have a member expression. | ||||
7890 | // E.g. X.f[:] | ||||
7891 | // While processing the final array section "[:]" it is "f" which tells us | ||||
7892 | // whether we are dealing with a member of a declared struct. | ||||
7893 | const MemberExpr *EncounteredME = nullptr; | ||||
7894 | |||||
7895 | // Track for the total number of dimension. Start from one for the dummy | ||||
7896 | // dimension. | ||||
7897 | uint64_t DimSize = 1; | ||||
7898 | |||||
7899 | bool IsNonContiguous = CombinedInfo.NonContigInfo.IsNonContiguous; | ||||
7900 | bool IsPrevMemberReference = false; | ||||
7901 | |||||
7902 | for (; I != CE; ++I) { | ||||
7903 | // If the current component is member of a struct (parent struct) mark it. | ||||
7904 | if (!EncounteredME) { | ||||
7905 | EncounteredME = dyn_cast<MemberExpr>(I->getAssociatedExpression()); | ||||
7906 | // If we encounter a PTR_AND_OBJ entry from now on it should be marked | ||||
7907 | // as MEMBER_OF the parent struct. | ||||
7908 | if (EncounteredME) { | ||||
7909 | ShouldBeMemberOf = true; | ||||
7910 | // Do not emit as complex pointer if this is actually not array-like | ||||
7911 | // expression. | ||||
7912 | if (FirstPointerInComplexData) { | ||||
7913 | QualType Ty = std::prev(I) | ||||
7914 | ->getAssociatedDeclaration() | ||||
7915 | ->getType() | ||||
7916 | .getNonReferenceType(); | ||||
7917 | BP = CGF.EmitLoadOfPointer(BP, Ty->castAs<PointerType>()); | ||||
7918 | FirstPointerInComplexData = false; | ||||
7919 | } | ||||
7920 | } | ||||
7921 | } | ||||
7922 | |||||
7923 | auto Next = std::next(I); | ||||
7924 | |||||
7925 | // We need to generate the addresses and sizes if this is the last | ||||
7926 | // component, if the component is a pointer or if it is an array section | ||||
7927 | // whose length can't be proved to be one. If this is a pointer, it | ||||
7928 | // becomes the base address for the following components. | ||||
7929 | |||||
7930 | // A final array section, is one whose length can't be proved to be one. | ||||
7931 | // If the map item is non-contiguous then we don't treat any array section | ||||
7932 | // as final array section. | ||||
7933 | bool IsFinalArraySection = | ||||
7934 | !IsNonContiguous && | ||||
7935 | isFinalArraySectionExpression(I->getAssociatedExpression()); | ||||
7936 | |||||
7937 | // If we have a declaration for the mapping use that, otherwise use | ||||
7938 | // the base declaration of the map clause. | ||||
7939 | const ValueDecl *MapDecl = (I->getAssociatedDeclaration()) | ||||
7940 | ? I->getAssociatedDeclaration() | ||||
7941 | : BaseDecl; | ||||
7942 | MapExpr = (I->getAssociatedExpression()) ? I->getAssociatedExpression() | ||||
7943 | : MapExpr; | ||||
7944 | |||||
7945 | // Get information on whether the element is a pointer. Have to do a | ||||
7946 | // special treatment for array sections given that they are built-in | ||||
7947 | // types. | ||||
7948 | const auto *OASE = | ||||
7949 | dyn_cast<OMPArraySectionExpr>(I->getAssociatedExpression()); | ||||
7950 | const auto *OAShE = | ||||
7951 | dyn_cast<OMPArrayShapingExpr>(I->getAssociatedExpression()); | ||||
7952 | const auto *UO = dyn_cast<UnaryOperator>(I->getAssociatedExpression()); | ||||
7953 | const auto *BO = dyn_cast<BinaryOperator>(I->getAssociatedExpression()); | ||||
7954 | bool IsPointer = | ||||
7955 | OAShE || | ||||
7956 | (OASE && OMPArraySectionExpr::getBaseOriginalType(OASE) | ||||
7957 | .getCanonicalType() | ||||
7958 | ->isAnyPointerType()) || | ||||
7959 | I->getAssociatedExpression()->getType()->isAnyPointerType(); | ||||
7960 | bool IsMemberReference = isa<MemberExpr>(I->getAssociatedExpression()) && | ||||
7961 | MapDecl && | ||||
7962 | MapDecl->getType()->isLValueReferenceType(); | ||||
7963 | bool IsNonDerefPointer = IsPointer && !UO && !BO && !IsNonContiguous; | ||||
7964 | |||||
7965 | if (OASE) | ||||
7966 | ++DimSize; | ||||
7967 | |||||
7968 | if (Next == CE || IsMemberReference || IsNonDerefPointer || | ||||
7969 | IsFinalArraySection) { | ||||
7970 | // If this is not the last component, we expect the pointer to be | ||||
7971 | // associated with an array expression or member expression. | ||||
7972 | assert((Next == CE ||((void)0) | ||||
7973 | isa<MemberExpr>(Next->getAssociatedExpression()) ||((void)0) | ||||
7974 | isa<ArraySubscriptExpr>(Next->getAssociatedExpression()) ||((void)0) | ||||
7975 | isa<OMPArraySectionExpr>(Next->getAssociatedExpression()) ||((void)0) | ||||
7976 | isa<OMPArrayShapingExpr>(Next->getAssociatedExpression()) ||((void)0) | ||||
7977 | isa<UnaryOperator>(Next->getAssociatedExpression()) ||((void)0) | ||||
7978 | isa<BinaryOperator>(Next->getAssociatedExpression())) &&((void)0) | ||||
7979 | "Unexpected expression")((void)0); | ||||
7980 | |||||
7981 | Address LB = Address::invalid(); | ||||
7982 | Address LowestElem = Address::invalid(); | ||||
7983 | auto &&EmitMemberExprBase = [](CodeGenFunction &CGF, | ||||
7984 | const MemberExpr *E) { | ||||
7985 | const Expr *BaseExpr = E->getBase(); | ||||
7986 | // If this is s.x, emit s as an lvalue. If it is s->x, emit s as a | ||||
7987 | // scalar. | ||||
7988 | LValue BaseLV; | ||||
7989 | if (E->isArrow()) { | ||||
7990 | LValueBaseInfo BaseInfo; | ||||
7991 | TBAAAccessInfo TBAAInfo; | ||||
7992 | Address Addr = | ||||
7993 | CGF.EmitPointerWithAlignment(BaseExpr, &BaseInfo, &TBAAInfo); | ||||
7994 | QualType PtrTy = BaseExpr->getType()->getPointeeType(); | ||||
7995 | BaseLV = CGF.MakeAddrLValue(Addr, PtrTy, BaseInfo, TBAAInfo); | ||||
7996 | } else { | ||||
7997 | BaseLV = CGF.EmitOMPSharedLValue(BaseExpr); | ||||
7998 | } | ||||
7999 | return BaseLV; | ||||
8000 | }; | ||||
8001 | if (OAShE) { | ||||
8002 | LowestElem = LB = Address(CGF.EmitScalarExpr(OAShE->getBase()), | ||||
8003 | CGF.getContext().getTypeAlignInChars( | ||||
8004 | OAShE->getBase()->getType())); | ||||
8005 | } else if (IsMemberReference) { | ||||
8006 | const auto *ME = cast<MemberExpr>(I->getAssociatedExpression()); | ||||
8007 | LValue BaseLVal = EmitMemberExprBase(CGF, ME); | ||||
8008 | LowestElem = CGF.EmitLValueForFieldInitialization( | ||||
8009 | BaseLVal, cast<FieldDecl>(MapDecl)) | ||||
8010 | .getAddress(CGF); | ||||
8011 | LB = CGF.EmitLoadOfReferenceLValue(LowestElem, MapDecl->getType()) | ||||
8012 | .getAddress(CGF); | ||||
8013 | } else { | ||||
8014 | LowestElem = LB = | ||||
8015 | CGF.EmitOMPSharedLValue(I->getAssociatedExpression()) | ||||
8016 | .getAddress(CGF); | ||||
8017 | } | ||||
8018 | |||||
8019 | // If this component is a pointer inside the base struct then we don't | ||||
8020 | // need to create any entry for it - it will be combined with the object | ||||
8021 | // it is pointing to into a single PTR_AND_OBJ entry. | ||||
8022 | bool IsMemberPointerOrAddr = | ||||
8023 | EncounteredME && | ||||
8024 | (((IsPointer || ForDeviceAddr) && | ||||
8025 | I->getAssociatedExpression() == EncounteredME) || | ||||
8026 | (IsPrevMemberReference && !IsPointer) || | ||||
8027 | (IsMemberReference && Next != CE && | ||||
8028 | !Next->getAssociatedExpression()->getType()->isPointerType())); | ||||
8029 | if (!OverlappedElements.empty() && Next == CE) { | ||||
8030 | // Handle base element with the info for overlapped elements. | ||||
8031 | assert(!PartialStruct.Base.isValid() && "The base element is set.")((void)0); | ||||
8032 | assert(!IsPointer &&((void)0) | ||||
8033 | "Unexpected base element with the pointer type.")((void)0); | ||||
8034 | // Mark the whole struct as the struct that requires allocation on the | ||||
8035 | // device. | ||||
8036 | PartialStruct.LowestElem = {0, LowestElem}; | ||||
8037 | CharUnits TypeSize = CGF.getContext().getTypeSizeInChars( | ||||
8038 | I->getAssociatedExpression()->getType()); | ||||
8039 | Address HB = CGF.Builder.CreateConstGEP( | ||||
8040 | CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(LowestElem, | ||||
8041 | CGF.VoidPtrTy), | ||||
8042 | TypeSize.getQuantity() - 1); | ||||
8043 | PartialStruct.HighestElem = { | ||||
8044 | std::numeric_limits<decltype( | ||||
8045 | PartialStruct.HighestElem.first)>::max(), | ||||
8046 | HB}; | ||||
8047 | PartialStruct.Base = BP; | ||||
8048 | PartialStruct.LB = LB; | ||||
8049 | assert(((void)0) | ||||
8050 | PartialStruct.PreliminaryMapData.BasePointers.empty() &&((void)0) | ||||
8051 | "Overlapped elements must be used only once for the variable.")((void)0); | ||||
8052 | std::swap(PartialStruct.PreliminaryMapData, CombinedInfo); | ||||
8053 | // Emit data for non-overlapped data. | ||||
8054 | OpenMPOffloadMappingFlags Flags = | ||||
8055 | OMP_MAP_MEMBER_OF | | ||||
8056 | getMapTypeBits(MapType, MapModifiers, MotionModifiers, IsImplicit, | ||||
8057 | /*AddPtrFlag=*/false, | ||||
8058 | /*AddIsTargetParamFlag=*/false, IsNonContiguous); | ||||
8059 | llvm::Value *Size = nullptr; | ||||
8060 | // Do bitcopy of all non-overlapped structure elements. | ||||
8061 | for (OMPClauseMappableExprCommon::MappableExprComponentListRef | ||||
8062 | Component : OverlappedElements) { | ||||
8063 | Address ComponentLB = Address::invalid(); | ||||
8064 | for (const OMPClauseMappableExprCommon::MappableComponent &MC : | ||||
8065 | Component) { | ||||
8066 | if (const ValueDecl *VD = MC.getAssociatedDeclaration()) { | ||||
8067 | const auto *FD = dyn_cast<FieldDecl>(VD); | ||||
8068 | if (FD && FD->getType()->isLValueReferenceType()) { | ||||
8069 | const auto *ME = | ||||
8070 | cast<MemberExpr>(MC.getAssociatedExpression()); | ||||
8071 | LValue BaseLVal = EmitMemberExprBase(CGF, ME); | ||||
8072 | ComponentLB = | ||||
8073 | CGF.EmitLValueForFieldInitialization(BaseLVal, FD) | ||||
8074 | .getAddress(CGF); | ||||
8075 | } else { | ||||
8076 | ComponentLB = | ||||
8077 | CGF.EmitOMPSharedLValue(MC.getAssociatedExpression()) | ||||
8078 | .getAddress(CGF); | ||||
8079 | } | ||||
8080 | Size = CGF.Builder.CreatePtrDiff( | ||||
8081 | CGF.EmitCastToVoidPtr(ComponentLB.getPointer()), | ||||
8082 | CGF.EmitCastToVoidPtr(LB.getPointer())); | ||||
8083 | break; | ||||
8084 | } | ||||
8085 | } | ||||
8086 | assert(Size && "Failed to determine structure size")((void)0); | ||||
8087 | CombinedInfo.Exprs.emplace_back(MapDecl, MapExpr); | ||||
8088 | CombinedInfo.BasePointers.push_back(BP.getPointer()); | ||||
8089 | CombinedInfo.Pointers.push_back(LB.getPointer()); | ||||
8090 | CombinedInfo.Sizes.push_back(CGF.Builder.CreateIntCast( | ||||
8091 | Size, CGF.Int64Ty, /*isSigned=*/true)); | ||||
8092 | CombinedInfo.Types.push_back(Flags); | ||||
8093 | CombinedInfo.Mappers.push_back(nullptr); | ||||
8094 | CombinedInfo.NonContigInfo.Dims.push_back(IsNonContiguous ? DimSize | ||||
8095 | : 1); | ||||
8096 | LB = CGF.Builder.CreateConstGEP(ComponentLB, 1); | ||||
8097 | } | ||||
8098 | CombinedInfo.Exprs.emplace_back(MapDecl, MapExpr); | ||||
8099 | CombinedInfo.BasePointers.push_back(BP.getPointer()); | ||||
8100 | CombinedInfo.Pointers.push_back(LB.getPointer()); | ||||
8101 | Size = CGF.Builder.CreatePtrDiff( | ||||
8102 | CGF.Builder.CreateConstGEP(HB, 1).getPointer(), | ||||
8103 | CGF.EmitCastToVoidPtr(LB.getPointer())); | ||||
8104 | CombinedInfo.Sizes.push_back( | ||||
8105 | CGF.Builder.CreateIntCast(Size, CGF.Int64Ty, /*isSigned=*/true)); | ||||
8106 | CombinedInfo.Types.push_back(Flags); | ||||
8107 | CombinedInfo.Mappers.push_back(nullptr); | ||||
8108 | CombinedInfo.NonContigInfo.Dims.push_back(IsNonContiguous ? DimSize | ||||
8109 | : 1); | ||||
8110 | break; | ||||
8111 | } | ||||
8112 | llvm::Value *Size = getExprTypeSize(I->getAssociatedExpression()); | ||||
8113 | if (!IsMemberPointerOrAddr || | ||||
8114 | (Next == CE && MapType != OMPC_MAP_unknown)) { | ||||
8115 | CombinedInfo.Exprs.emplace_back(MapDecl, MapExpr); | ||||
8116 | CombinedInfo.BasePointers.push_back(BP.getPointer()); | ||||
8117 | CombinedInfo.Pointers.push_back(LB.getPointer()); | ||||
8118 | CombinedInfo.Sizes.push_back( | ||||
8119 | CGF.Builder.CreateIntCast(Size, CGF.Int64Ty, /*isSigned=*/true)); | ||||
8120 | CombinedInfo.NonContigInfo.Dims.push_back(IsNonContiguous ? DimSize | ||||
8121 | : 1); | ||||
8122 | |||||
8123 | // If Mapper is valid, the last component inherits the mapper. | ||||
8124 | bool HasMapper = Mapper && Next == CE; | ||||
8125 | CombinedInfo.Mappers.push_back(HasMapper ? Mapper : nullptr); | ||||
8126 | |||||
8127 | // We need to add a pointer flag for each map that comes from the | ||||
8128 | // same expression except for the first one. We also need to signal | ||||
8129 | // this map is the first one that relates with the current capture | ||||
8130 | // (there is a set of entries for each capture). | ||||
8131 | OpenMPOffloadMappingFlags Flags = getMapTypeBits( | ||||
8132 | MapType, MapModifiers, MotionModifiers, IsImplicit, | ||||
8133 | !IsExpressionFirstInfo || RequiresReference || | ||||
8134 | FirstPointerInComplexData || IsMemberReference, | ||||
8135 | IsCaptureFirstInfo && !RequiresReference, IsNonContiguous); | ||||
8136 | |||||
8137 | if (!IsExpressionFirstInfo || IsMemberReference) { | ||||
8138 | // If we have a PTR_AND_OBJ pair where the OBJ is a pointer as well, | ||||
8139 | // then we reset the TO/FROM/ALWAYS/DELETE/CLOSE flags. | ||||
8140 | if (IsPointer || (IsMemberReference && Next != CE)) | ||||
8141 | Flags &= ~(OMP_MAP_TO | OMP_MAP_FROM | OMP_MAP_ALWAYS | | ||||
8142 | OMP_MAP_DELETE | OMP_MAP_CLOSE); | ||||
8143 | |||||
8144 | if (ShouldBeMemberOf) { | ||||
8145 | // Set placeholder value MEMBER_OF=FFFF to indicate that the flag | ||||
8146 | // should be later updated with the correct value of MEMBER_OF. | ||||
8147 | Flags |= OMP_MAP_MEMBER_OF; | ||||
8148 | // From now on, all subsequent PTR_AND_OBJ entries should not be | ||||
8149 | // marked as MEMBER_OF. | ||||
8150 | ShouldBeMemberOf = false; | ||||
8151 | } | ||||
8152 | } | ||||
8153 | |||||
8154 | CombinedInfo.Types.push_back(Flags); | ||||
8155 | } | ||||
8156 | |||||
8157 | // If we have encountered a member expression so far, keep track of the | ||||
8158 | // mapped member. If the parent is "*this", then the value declaration | ||||
8159 | // is nullptr. | ||||
8160 | if (EncounteredME) { | ||||
8161 | const auto *FD = cast<FieldDecl>(EncounteredME->getMemberDecl()); | ||||
8162 | unsigned FieldIndex = FD->getFieldIndex(); | ||||
8163 | |||||
8164 | // Update info about the lowest and highest elements for this struct | ||||
8165 | if (!PartialStruct.Base.isValid()) { | ||||
8166 | PartialStruct.LowestElem = {FieldIndex, LowestElem}; | ||||
8167 | if (IsFinalArraySection) { | ||||
8168 | Address HB = | ||||
8169 | CGF.EmitOMPArraySectionExpr(OASE, /*IsLowerBound=*/false) | ||||
8170 | .getAddress(CGF); | ||||
8171 | PartialStruct.HighestElem = {FieldIndex, HB}; | ||||
8172 | } else { | ||||
8173 | PartialStruct.HighestElem = {FieldIndex, LowestElem}; | ||||
8174 | } | ||||
8175 | PartialStruct.Base = BP; | ||||
8176 | PartialStruct.LB = BP; | ||||
8177 | } else if (FieldIndex < PartialStruct.LowestElem.first) { | ||||
8178 | PartialStruct.LowestElem = {FieldIndex, LowestElem}; | ||||
8179 | } else if (FieldIndex > PartialStruct.HighestElem.first) { | ||||
8180 | PartialStruct.HighestElem = {FieldIndex, LowestElem}; | ||||
8181 | } | ||||
8182 | } | ||||
8183 | |||||
8184 | // Need to emit combined struct for array sections. | ||||
8185 | if (IsFinalArraySection || IsNonContiguous) | ||||
8186 | PartialStruct.IsArraySection = true; | ||||
8187 | |||||
8188 | // If we have a final array section, we are done with this expression. | ||||
8189 | if (IsFinalArraySection) | ||||
8190 | break; | ||||
8191 | |||||
8192 | // The pointer becomes the base for the next element. | ||||
8193 | if (Next != CE) | ||||
8194 | BP = IsMemberReference ? LowestElem : LB; | ||||
8195 | |||||
8196 | IsExpressionFirstInfo = false; | ||||
8197 | IsCaptureFirstInfo = false; | ||||
8198 | FirstPointerInComplexData = false; | ||||
8199 | IsPrevMemberReference = IsMemberReference; | ||||
8200 | } else if (FirstPointerInComplexData) { | ||||
8201 | QualType Ty = Components.rbegin() | ||||
8202 | ->getAssociatedDeclaration() | ||||
8203 | ->getType() | ||||
8204 | .getNonReferenceType(); | ||||
8205 | BP = CGF.EmitLoadOfPointer(BP, Ty->castAs<PointerType>()); | ||||
8206 | FirstPointerInComplexData = false; | ||||
8207 | } | ||||
8208 | } | ||||
8209 | // If ran into the whole component - allocate the space for the whole | ||||
8210 | // record. | ||||
8211 | if (!EncounteredME) | ||||
8212 | PartialStruct.HasCompleteRecord = true; | ||||
8213 | |||||
8214 | if (!IsNonContiguous) | ||||
8215 | return; | ||||
8216 | |||||
8217 | const ASTContext &Context = CGF.getContext(); | ||||
8218 | |||||
8219 | // For supporting stride in array section, we need to initialize the first | ||||
8220 | // dimension size as 1, first offset as 0, and first count as 1 | ||||
8221 | MapValuesArrayTy CurOffsets = {llvm::ConstantInt::get(CGF.CGM.Int64Ty, 0)}; | ||||
8222 | MapValuesArrayTy CurCounts = {llvm::ConstantInt::get(CGF.CGM.Int64Ty, 1)}; | ||||
8223 | MapValuesArrayTy CurStrides; | ||||
8224 | MapValuesArrayTy DimSizes{llvm::ConstantInt::get(CGF.CGM.Int64Ty, 1)}; | ||||
8225 | uint64_t ElementTypeSize; | ||||
8226 | |||||
8227 | // Collect Size information for each dimension and get the element size as | ||||
8228 | // the first Stride. For example, for `int arr[10][10]`, the DimSizes | ||||
8229 | // should be [10, 10] and the first stride is 4 btyes. | ||||
8230 | for (const OMPClauseMappableExprCommon::MappableComponent &Component : | ||||
8231 | Components) { | ||||
8232 | const Expr *AssocExpr = Component.getAssociatedExpression(); | ||||
8233 | const auto *OASE = dyn_cast<OMPArraySectionExpr>(AssocExpr); | ||||
8234 | |||||
8235 | if (!OASE) | ||||
8236 | continue; | ||||
8237 | |||||
8238 | QualType Ty = OMPArraySectionExpr::getBaseOriginalType(OASE->getBase()); | ||||
8239 | auto *CAT = Context.getAsConstantArrayType(Ty); | ||||
8240 | auto *VAT = Context.getAsVariableArrayType(Ty); | ||||
8241 | |||||
8242 | // We need all the dimension size except for the last dimension. | ||||
8243 | assert((VAT || CAT || &Component == &*Components.begin()) &&((void)0) | ||||
8244 | "Should be either ConstantArray or VariableArray if not the "((void)0) | ||||
8245 | "first Component")((void)0); | ||||
8246 | |||||
8247 | // Get element size if CurStrides is empty. | ||||
8248 | if (CurStrides.empty()) { | ||||
8249 | const Type *ElementType = nullptr; | ||||
8250 | if (CAT) | ||||
8251 | ElementType = CAT->getElementType().getTypePtr(); | ||||
8252 | else if (VAT) | ||||
8253 | ElementType = VAT->getElementType().getTypePtr(); | ||||
8254 | else | ||||
8255 | assert(&Component == &*Components.begin() &&((void)0) | ||||
8256 | "Only expect pointer (non CAT or VAT) when this is the "((void)0) | ||||
8257 | "first Component")((void)0); | ||||
8258 | // If ElementType is null, then it means the base is a pointer | ||||
8259 | // (neither CAT nor VAT) and we'll attempt to get ElementType again | ||||
8260 | // for next iteration. | ||||
8261 | if (ElementType) { | ||||
8262 | // For the case that having pointer as base, we need to remove one | ||||
8263 | // level of indirection. | ||||
8264 | if (&Component != &*Components.begin()) | ||||
8265 | ElementType = ElementType->getPointeeOrArrayElementType(); | ||||
8266 | ElementTypeSize = | ||||
8267 | Context.getTypeSizeInChars(ElementType).getQuantity(); | ||||
8268 | CurStrides.push_back( | ||||
8269 | llvm::ConstantInt::get(CGF.Int64Ty, ElementTypeSize)); | ||||
8270 | } | ||||
8271 | } | ||||
8272 | // Get dimension value except for the last dimension since we don't need | ||||
8273 | // it. | ||||
8274 | if (DimSizes.size() < Components.size() - 1) { | ||||
8275 | if (CAT) | ||||
8276 | DimSizes.push_back(llvm::ConstantInt::get( | ||||
8277 | CGF.Int64Ty, CAT->getSize().getZExtValue())); | ||||
8278 | else if (VAT) | ||||
8279 | DimSizes.push_back(CGF.Builder.CreateIntCast( | ||||
8280 | CGF.EmitScalarExpr(VAT->getSizeExpr()), CGF.Int64Ty, | ||||
8281 | /*IsSigned=*/false)); | ||||
8282 | } | ||||
8283 | } | ||||
8284 | |||||
8285 | // Skip the dummy dimension since we have already have its information. | ||||
8286 | auto DI = DimSizes.begin() + 1; | ||||
8287 | // Product of dimension. | ||||
8288 | llvm::Value *DimProd = | ||||
8289 | llvm::ConstantInt::get(CGF.CGM.Int64Ty, ElementTypeSize); | ||||
8290 | |||||
8291 | // Collect info for non-contiguous. Notice that offset, count, and stride | ||||
8292 | // are only meaningful for array-section, so we insert a null for anything | ||||
8293 | // other than array-section. | ||||
8294 | // Also, the size of offset, count, and stride are not the same as | ||||
8295 | // pointers, base_pointers, sizes, or dims. Instead, the size of offset, | ||||
8296 | // count, and stride are the same as the number of non-contiguous | ||||
8297 | // declaration in target update to/from clause. | ||||
8298 | for (const OMPClauseMappableExprCommon::MappableComponent &Component : | ||||
8299 | Components) { | ||||
8300 | const Expr *AssocExpr = Component.getAssociatedExpression(); | ||||
8301 | |||||
8302 | if (const auto *AE = dyn_cast<ArraySubscriptExpr>(AssocExpr)) { | ||||
8303 | llvm::Value *Offset = CGF.Builder.CreateIntCast( | ||||
8304 | CGF.EmitScalarExpr(AE->getIdx()), CGF.Int64Ty, | ||||
8305 | /*isSigned=*/false); | ||||
8306 | CurOffsets.push_back(Offset); | ||||
8307 | CurCounts.push_back(llvm::ConstantInt::get(CGF.Int64Ty, /*V=*/1)); | ||||
8308 | CurStrides.push_back(CurStrides.back()); | ||||
8309 | continue; | ||||
8310 | } | ||||
8311 | |||||
8312 | const auto *OASE = dyn_cast<OMPArraySectionExpr>(AssocExpr); | ||||
8313 | |||||
8314 | if (!OASE) | ||||
8315 | continue; | ||||
8316 | |||||
8317 | // Offset | ||||
8318 | const Expr *OffsetExpr = OASE->getLowerBound(); | ||||
8319 | llvm::Value *Offset = nullptr; | ||||
8320 | if (!OffsetExpr) { | ||||
8321 | // If offset is absent, then we just set it to zero. | ||||
8322 | Offset = llvm::ConstantInt::get(CGF.Int64Ty, 0); | ||||
8323 | } else { | ||||
8324 | Offset = CGF.Builder.CreateIntCast(CGF.EmitScalarExpr(OffsetExpr), | ||||
8325 | CGF.Int64Ty, | ||||
8326 | /*isSigned=*/false); | ||||
8327 | } | ||||
8328 | CurOffsets.push_back(Offset); | ||||
8329 | |||||
8330 | // Count | ||||
8331 | const Expr *CountExpr = OASE->getLength(); | ||||
8332 | llvm::Value *Count = nullptr; | ||||
8333 | if (!CountExpr) { | ||||
8334 | // In Clang, once a high dimension is an array section, we construct all | ||||
8335 | // the lower dimension as array section, however, for case like | ||||
8336 | // arr[0:2][2], Clang construct the inner dimension as an array section | ||||
8337 | // but it actually is not in an array section form according to spec. | ||||
8338 | if (!OASE->getColonLocFirst().isValid() && | ||||
8339 | !OASE->getColonLocSecond().isValid()) { | ||||
8340 | Count = llvm::ConstantInt::get(CGF.Int64Ty, 1); | ||||
8341 | } else { | ||||
8342 | // OpenMP 5.0, 2.1.5 Array Sections, Description. | ||||
8343 | // When the length is absent it defaults to ⌈(size − | ||||
8344 | // lower-bound)/stride⌉, where size is the size of the array | ||||
8345 | // dimension. | ||||
8346 | const Expr *StrideExpr = OASE->getStride(); | ||||
8347 | llvm::Value *Stride = | ||||
8348 | StrideExpr | ||||
8349 | ? CGF.Builder.CreateIntCast(CGF.EmitScalarExpr(StrideExpr), | ||||
8350 | CGF.Int64Ty, /*isSigned=*/false) | ||||
8351 | : nullptr; | ||||
8352 | if (Stride) | ||||
8353 | Count = CGF.Builder.CreateUDiv( | ||||
8354 | CGF.Builder.CreateNUWSub(*DI, Offset), Stride); | ||||
8355 | else | ||||
8356 | Count = CGF.Builder.CreateNUWSub(*DI, Offset); | ||||
8357 | } | ||||
8358 | } else { | ||||
8359 | Count = CGF.EmitScalarExpr(CountExpr); | ||||
8360 | } | ||||
8361 | Count = CGF.Builder.CreateIntCast(Count, CGF.Int64Ty, /*isSigned=*/false); | ||||
8362 | CurCounts.push_back(Count); | ||||
8363 | |||||
8364 | // Stride_n' = Stride_n * (D_0 * D_1 ... * D_n-1) * Unit size | ||||
8365 | // Take `int arr[5][5][5]` and `arr[0:2:2][1:2:1][0:2:2]` as an example: | ||||
8366 | // Offset Count Stride | ||||
8367 | // D0 0 1 4 (int) <- dummy dimension | ||||
8368 | // D1 0 2 8 (2 * (1) * 4) | ||||
8369 | // D2 1 2 20 (1 * (1 * 5) * 4) | ||||
8370 | // D3 0 2 200 (2 * (1 * 5 * 4) * 4) | ||||
8371 | const Expr *StrideExpr = OASE->getStride(); | ||||
8372 | llvm::Value *Stride = | ||||
8373 | StrideExpr | ||||
8374 | ? CGF.Builder.CreateIntCast(CGF.EmitScalarExpr(StrideExpr), | ||||
8375 | CGF.Int64Ty, /*isSigned=*/false) | ||||
8376 | : nullptr; | ||||
8377 | DimProd = CGF.Builder.CreateNUWMul(DimProd, *(DI - 1)); | ||||
8378 | if (Stride) | ||||
8379 | CurStrides.push_back(CGF.Builder.CreateNUWMul(DimProd, Stride)); | ||||
8380 | else | ||||
8381 | CurStrides.push_back(DimProd); | ||||
8382 | if (DI != DimSizes.end()) | ||||
8383 | ++DI; | ||||
8384 | } | ||||
8385 | |||||
8386 | CombinedInfo.NonContigInfo.Offsets.push_back(CurOffsets); | ||||
8387 | CombinedInfo.NonContigInfo.Counts.push_back(CurCounts); | ||||
8388 | CombinedInfo.NonContigInfo.Strides.push_back(CurStrides); | ||||
8389 | } | ||||
8390 | |||||
8391 | /// Return the adjusted map modifiers if the declaration a capture refers to | ||||
8392 | /// appears in a first-private clause. This is expected to be used only with | ||||
8393 | /// directives that start with 'target'. | ||||
8394 | MappableExprsHandler::OpenMPOffloadMappingFlags | ||||
8395 | getMapModifiersForPrivateClauses(const CapturedStmt::Capture &Cap) const { | ||||
8396 | assert(Cap.capturesVariable() && "Expected capture by reference only!")((void)0); | ||||
8397 | |||||
8398 | // A first private variable captured by reference will use only the | ||||
8399 | // 'private ptr' and 'map to' flag. Return the right flags if the captured | ||||
8400 | // declaration is known as first-private in this handler. | ||||
8401 | if (FirstPrivateDecls.count(Cap.getCapturedVar())) { | ||||
8402 | if (Cap.getCapturedVar()->getType()->isAnyPointerType()) | ||||
8403 | return MappableExprsHandler::OMP_MAP_TO | | ||||
8404 | MappableExprsHandler::OMP_MAP_PTR_AND_OBJ; | ||||
8405 | return MappableExprsHandler::OMP_MAP_PRIVATE | | ||||
8406 | MappableExprsHandler::OMP_MAP_TO; | ||||
8407 | } | ||||
8408 | return MappableExprsHandler::OMP_MAP_TO | | ||||
8409 | MappableExprsHandler::OMP_MAP_FROM; | ||||
8410 | } | ||||
8411 | |||||
8412 | static OpenMPOffloadMappingFlags getMemberOfFlag(unsigned Position) { | ||||
8413 | // Rotate by getFlagMemberOffset() bits. | ||||
8414 | return static_cast<OpenMPOffloadMappingFlags>(((uint64_t)Position + 1) | ||||
8415 | << getFlagMemberOffset()); | ||||
8416 | } | ||||
8417 | |||||
8418 | static void setCorrectMemberOfFlag(OpenMPOffloadMappingFlags &Flags, | ||||
8419 | OpenMPOffloadMappingFlags MemberOfFlag) { | ||||
8420 | // If the entry is PTR_AND_OBJ but has not been marked with the special | ||||
8421 | // placeholder value 0xFFFF in the MEMBER_OF field, then it should not be | ||||
8422 | // marked as MEMBER_OF. | ||||
8423 | if ((Flags & OMP_MAP_PTR_AND_OBJ) && | ||||
8424 | ((Flags & OMP_MAP_MEMBER_OF) != OMP_MAP_MEMBER_OF)) | ||||
8425 | return; | ||||
8426 | |||||
8427 | // Reset the placeholder value to prepare the flag for the assignment of the | ||||
8428 | // proper MEMBER_OF value. | ||||
8429 | Flags &= ~OMP_MAP_MEMBER_OF; | ||||
8430 | Flags |= MemberOfFlag; | ||||
8431 | } | ||||
8432 | |||||
8433 | void getPlainLayout(const CXXRecordDecl *RD, | ||||
8434 | llvm::SmallVectorImpl<const FieldDecl *> &Layout, | ||||
8435 | bool AsBase) const { | ||||
8436 | const CGRecordLayout &RL = CGF.getTypes().getCGRecordLayout(RD); | ||||
8437 | |||||
8438 | llvm::StructType *St = | ||||
8439 | AsBase ? RL.getBaseSubobjectLLVMType() : RL.getLLVMType(); | ||||
8440 | |||||
8441 | unsigned NumElements = St->getNumElements(); | ||||
8442 | llvm::SmallVector< | ||||
8443 | llvm::PointerUnion<const CXXRecordDecl *, const FieldDecl *>, 4> | ||||
8444 | RecordLayout(NumElements); | ||||
8445 | |||||
8446 | // Fill bases. | ||||
8447 | for (const auto &I : RD->bases()) { | ||||
8448 | if (I.isVirtual()) | ||||
8449 | continue; | ||||
8450 | const auto *Base = I.getType()->getAsCXXRecordDecl(); | ||||
8451 | // Ignore empty bases. | ||||
8452 | if (Base->isEmpty() || CGF.getContext() | ||||
8453 | .getASTRecordLayout(Base) | ||||
8454 | .getNonVirtualSize() | ||||
8455 | .isZero()) | ||||
8456 | continue; | ||||
8457 | |||||
8458 | unsigned FieldIndex = RL.getNonVirtualBaseLLVMFieldNo(Base); | ||||
8459 | RecordLayout[FieldIndex] = Base; | ||||
8460 | } | ||||
8461 | // Fill in virtual bases. | ||||
8462 | for (const auto &I : RD->vbases()) { | ||||
8463 | const auto *Base = I.getType()->getAsCXXRecordDecl(); | ||||
8464 | // Ignore empty bases. | ||||
8465 | if (Base->isEmpty()) | ||||
8466 | continue; | ||||
8467 | unsigned FieldIndex = RL.getVirtualBaseIndex(Base); | ||||
8468 | if (RecordLayout[FieldIndex]) | ||||
8469 | continue; | ||||
8470 | RecordLayout[FieldIndex] = Base; | ||||
8471 | } | ||||
8472 | // Fill in all the fields. | ||||
8473 | assert(!RD->isUnion() && "Unexpected union.")((void)0); | ||||
8474 | for (const auto *Field : RD->fields()) { | ||||
8475 | // Fill in non-bitfields. (Bitfields always use a zero pattern, which we | ||||
8476 | // will fill in later.) | ||||
8477 | if (!Field->isBitField() && !Field->isZeroSize(CGF.getContext())) { | ||||
8478 | unsigned FieldIndex = RL.getLLVMFieldNo(Field); | ||||
8479 | RecordLayout[FieldIndex] = Field; | ||||
8480 | } | ||||
8481 | } | ||||
8482 | for (const llvm::PointerUnion<const CXXRecordDecl *, const FieldDecl *> | ||||
8483 | &Data : RecordLayout) { | ||||
8484 | if (Data.isNull()) | ||||
8485 | continue; | ||||
8486 | if (const auto *Base = Data.dyn_cast<const CXXRecordDecl *>()) | ||||
8487 | getPlainLayout(Base, Layout, /*AsBase=*/true); | ||||
8488 | else | ||||
8489 | Layout.push_back(Data.get<const FieldDecl *>()); | ||||
8490 | } | ||||
8491 | } | ||||
8492 | |||||
8493 | /// Generate all the base pointers, section pointers, sizes, map types, and | ||||
8494 | /// mappers for the extracted mappable expressions (all included in \a | ||||
8495 | /// CombinedInfo). Also, for each item that relates with a device pointer, a | ||||
8496 | /// pair of the relevant declaration and index where it occurs is appended to | ||||
8497 | /// the device pointers info array. | ||||
8498 | void generateAllInfoForClauses( | ||||
8499 | ArrayRef<const OMPClause *> Clauses, MapCombinedInfoTy &CombinedInfo, | ||||
8500 | const llvm::DenseSet<CanonicalDeclPtr<const Decl>> &SkipVarSet = | ||||
8501 | llvm::DenseSet<CanonicalDeclPtr<const Decl>>()) const { | ||||
8502 | // We have to process the component lists that relate with the same | ||||
8503 | // declaration in a single chunk so that we can generate the map flags | ||||
8504 | // correctly. Therefore, we organize all lists in a map. | ||||
8505 | enum MapKind { Present, Allocs, Other, Total }; | ||||
8506 | llvm::MapVector<CanonicalDeclPtr<const Decl>, | ||||
8507 | SmallVector<SmallVector<MapInfo, 8>, 4>> | ||||
8508 | Info; | ||||
8509 | |||||
8510 | // Helper function to fill the information map for the different supported | ||||
8511 | // clauses. | ||||
8512 | auto &&InfoGen = | ||||
8513 | [&Info, &SkipVarSet]( | ||||
8514 | const ValueDecl *D, MapKind Kind, | ||||
8515 | OMPClauseMappableExprCommon::MappableExprComponentListRef L, | ||||
8516 | OpenMPMapClauseKind MapType, | ||||
8517 | ArrayRef<OpenMPMapModifierKind> MapModifiers, | ||||
8518 | ArrayRef<OpenMPMotionModifierKind> MotionModifiers, | ||||
8519 | bool ReturnDevicePointer, bool IsImplicit, const ValueDecl *Mapper, | ||||
8520 | const Expr *VarRef = nullptr, bool ForDeviceAddr = false) { | ||||
8521 | if (SkipVarSet.contains(D)) | ||||
8522 | return; | ||||
8523 | auto It = Info.find(D); | ||||
8524 | if (It == Info.end()) | ||||
8525 | It = Info | ||||
8526 | .insert(std::make_pair( | ||||
8527 | D, SmallVector<SmallVector<MapInfo, 8>, 4>(Total))) | ||||
8528 | .first; | ||||
8529 | It->second[Kind].emplace_back( | ||||
8530 | L, MapType, MapModifiers, MotionModifiers, ReturnDevicePointer, | ||||
8531 | IsImplicit, Mapper, VarRef, ForDeviceAddr); | ||||
8532 | }; | ||||
8533 | |||||
8534 | for (const auto *Cl : Clauses) { | ||||
8535 | const auto *C = dyn_cast<OMPMapClause>(Cl); | ||||
8536 | if (!C) | ||||
8537 | continue; | ||||
8538 | MapKind Kind = Other; | ||||
8539 | if (!C->getMapTypeModifiers().empty() && | ||||
8540 | llvm::any_of(C->getMapTypeModifiers(), [](OpenMPMapModifierKind K) { | ||||
8541 | return K == OMPC_MAP_MODIFIER_present; | ||||
8542 | })) | ||||
8543 | Kind = Present; | ||||
8544 | else if (C->getMapType() == OMPC_MAP_alloc) | ||||
8545 | Kind = Allocs; | ||||
8546 | const auto *EI = C->getVarRefs().begin(); | ||||
8547 | for (const auto L : C->component_lists()) { | ||||
8548 | const Expr *E = (C->getMapLoc().isValid()) ? *EI : nullptr; | ||||
8549 | InfoGen(std::get<0>(L), Kind, std::get<1>(L), C->getMapType(), | ||||
8550 | C->getMapTypeModifiers(), llvm::None, | ||||
8551 | /*ReturnDevicePointer=*/false, C->isImplicit(), std::get<2>(L), | ||||
8552 | E); | ||||
8553 | ++EI; | ||||
8554 | } | ||||
8555 | } | ||||
8556 | for (const auto *Cl : Clauses) { | ||||
8557 | const auto *C = dyn_cast<OMPToClause>(Cl); | ||||
8558 | if (!C) | ||||
8559 | continue; | ||||
8560 | MapKind Kind = Other; | ||||
8561 | if (!C->getMotionModifiers().empty() && | ||||
8562 | llvm::any_of(C->getMotionModifiers(), [](OpenMPMotionModifierKind K) { | ||||
8563 | return K == OMPC_MOTION_MODIFIER_present; | ||||
8564 | })) | ||||
8565 | Kind = Present; | ||||
8566 | const auto *EI = C->getVarRefs().begin(); | ||||
8567 | for (const auto L : C->component_lists()) { | ||||
8568 | InfoGen(std::get<0>(L), Kind, std::get<1>(L), OMPC_MAP_to, llvm::None, | ||||
8569 | C->getMotionModifiers(), /*ReturnDevicePointer=*/false, | ||||
8570 | C->isImplicit(), std::get<2>(L), *EI); | ||||
8571 | ++EI; | ||||
8572 | } | ||||
8573 | } | ||||
8574 | for (const auto *Cl : Clauses) { | ||||
8575 | const auto *C = dyn_cast<OMPFromClause>(Cl); | ||||
8576 | if (!C) | ||||
8577 | continue; | ||||
8578 | MapKind Kind = Other; | ||||
8579 | if (!C->getMotionModifiers().empty() && | ||||
8580 | llvm::any_of(C->getMotionModifiers(), [](OpenMPMotionModifierKind K) { | ||||
8581 | return K == OMPC_MOTION_MODIFIER_present; | ||||
8582 | })) | ||||
8583 | Kind = Present; | ||||
8584 | const auto *EI = C->getVarRefs().begin(); | ||||
8585 | for (const auto L : C->component_lists()) { | ||||
8586 | InfoGen(std::get<0>(L), Kind, std::get<1>(L), OMPC_MAP_from, llvm::None, | ||||
8587 | C->getMotionModifiers(), /*ReturnDevicePointer=*/false, | ||||
8588 | C->isImplicit(), std::get<2>(L), *EI); | ||||
8589 | ++EI; | ||||
8590 | } | ||||
8591 | } | ||||
8592 | |||||
8593 | // Look at the use_device_ptr clause information and mark the existing map | ||||
8594 | // entries as such. If there is no map information for an entry in the | ||||
8595 | // use_device_ptr list, we create one with map type 'alloc' and zero size | ||||
8596 | // section. It is the user fault if that was not mapped before. If there is | ||||
8597 | // no map information and the pointer is a struct member, then we defer the | ||||
8598 | // emission of that entry until the whole struct has been processed. | ||||
8599 | llvm::MapVector<CanonicalDeclPtr<const Decl>, | ||||
8600 | SmallVector<DeferredDevicePtrEntryTy, 4>> | ||||
8601 | DeferredInfo; | ||||
8602 | MapCombinedInfoTy UseDevicePtrCombinedInfo; | ||||
8603 | |||||
8604 | for (const auto *Cl : Clauses) { | ||||
8605 | const auto *C = dyn_cast<OMPUseDevicePtrClause>(Cl); | ||||
8606 | if (!C) | ||||
8607 | continue; | ||||
8608 | for (const auto L : C->component_lists()) { | ||||
8609 | OMPClauseMappableExprCommon::MappableExprComponentListRef Components = | ||||
8610 | std::get<1>(L); | ||||
8611 | assert(!Components.empty() &&((void)0) | ||||
8612 | "Not expecting empty list of components!")((void)0); | ||||
8613 | const ValueDecl *VD = Components.back().getAssociatedDeclaration(); | ||||
8614 | VD = cast<ValueDecl>(VD->getCanonicalDecl()); | ||||
8615 | const Expr *IE = Components.back().getAssociatedExpression(); | ||||
8616 | // If the first component is a member expression, we have to look into | ||||
8617 | // 'this', which maps to null in the map of map information. Otherwise | ||||
8618 | // look directly for the information. | ||||
8619 | auto It = Info.find(isa<MemberExpr>(IE) ? nullptr : VD); | ||||
8620 | |||||
8621 | // We potentially have map information for this declaration already. | ||||
8622 | // Look for the first set of components that refer to it. | ||||
8623 | if (It != Info.end()) { | ||||
8624 | bool Found = false; | ||||
8625 | for (auto &Data : It->second) { | ||||
8626 | auto *CI = llvm::find_if(Data, [VD](const MapInfo &MI) { | ||||
8627 | return MI.Components.back().getAssociatedDeclaration() == VD; | ||||
8628 | }); | ||||
8629 | // If we found a map entry, signal that the pointer has to be | ||||
8630 | // returned and move on to the next declaration. Exclude cases where | ||||
8631 | // the base pointer is mapped as array subscript, array section or | ||||
8632 | // array shaping. The base address is passed as a pointer to base in | ||||
8633 | // this case and cannot be used as a base for use_device_ptr list | ||||
8634 | // item. | ||||
8635 | if (CI != Data.end()) { | ||||
8636 | auto PrevCI = std::next(CI->Components.rbegin()); | ||||
8637 | const auto *VarD = dyn_cast<VarDecl>(VD); | ||||
8638 | if (CGF.CGM.getOpenMPRuntime().hasRequiresUnifiedSharedMemory() || | ||||
8639 | isa<MemberExpr>(IE) || | ||||
8640 | !VD->getType().getNonReferenceType()->isPointerType() || | ||||
8641 | PrevCI == CI->Components.rend() || | ||||
8642 | isa<MemberExpr>(PrevCI->getAssociatedExpression()) || !VarD || | ||||
8643 | VarD->hasLocalStorage()) { | ||||
8644 | CI->ReturnDevicePointer = true; | ||||
8645 | Found = true; | ||||
8646 | break; | ||||
8647 | } | ||||
8648 | } | ||||
8649 | } | ||||
8650 | if (Found) | ||||
8651 | continue; | ||||
8652 | } | ||||
8653 | |||||
8654 | // We didn't find any match in our map information - generate a zero | ||||
8655 | // size array section - if the pointer is a struct member we defer this | ||||
8656 | // action until the whole struct has been processed. | ||||
8657 | if (isa<MemberExpr>(IE)) { | ||||
8658 | // Insert the pointer into Info to be processed by | ||||
8659 | // generateInfoForComponentList. Because it is a member pointer | ||||
8660 | // without a pointee, no entry will be generated for it, therefore | ||||
8661 | // we need to generate one after the whole struct has been processed. | ||||
8662 | // Nonetheless, generateInfoForComponentList must be called to take | ||||
8663 | // the pointer into account for the calculation of the range of the | ||||
8664 | // partial struct. | ||||
8665 | InfoGen(nullptr, Other, Components, OMPC_MAP_unknown, llvm::None, | ||||
8666 | llvm::None, /*ReturnDevicePointer=*/false, C->isImplicit(), | ||||
8667 | nullptr); | ||||
8668 | DeferredInfo[nullptr].emplace_back(IE, VD, /*ForDeviceAddr=*/false); | ||||
8669 | } else { | ||||
8670 | llvm::Value *Ptr = | ||||
8671 | CGF.EmitLoadOfScalar(CGF.EmitLValue(IE), IE->getExprLoc()); | ||||
8672 | UseDevicePtrCombinedInfo.Exprs.push_back(VD); | ||||
8673 | UseDevicePtrCombinedInfo.BasePointers.emplace_back(Ptr, VD); | ||||
8674 | UseDevicePtrCombinedInfo.Pointers.push_back(Ptr); | ||||
8675 | UseDevicePtrCombinedInfo.Sizes.push_back( | ||||
8676 | llvm::Constant::getNullValue(CGF.Int64Ty)); | ||||
8677 | UseDevicePtrCombinedInfo.Types.push_back(OMP_MAP_RETURN_PARAM); | ||||
8678 | UseDevicePtrCombinedInfo.Mappers.push_back(nullptr); | ||||
8679 | } | ||||
8680 | } | ||||
8681 | } | ||||
8682 | |||||
8683 | // Look at the use_device_addr clause information and mark the existing map | ||||
8684 | // entries as such. If there is no map information for an entry in the | ||||
8685 | // use_device_addr list, we create one with map type 'alloc' and zero size | ||||
8686 | // section. It is the user fault if that was not mapped before. If there is | ||||
8687 | // no map information and the pointer is a struct member, then we defer the | ||||
8688 | // emission of that entry until the whole struct has been processed. | ||||
8689 | llvm::SmallDenseSet<CanonicalDeclPtr<const Decl>, 4> Processed; | ||||
8690 | for (const auto *Cl : Clauses) { | ||||
8691 | const auto *C = dyn_cast<OMPUseDeviceAddrClause>(Cl); | ||||
8692 | if (!C) | ||||
8693 | continue; | ||||
8694 | for (const auto L : C->component_lists()) { | ||||
8695 | assert(!std::get<1>(L).empty() &&((void)0) | ||||
8696 | "Not expecting empty list of components!")((void)0); | ||||
8697 | const ValueDecl *VD = std::get<1>(L).back().getAssociatedDeclaration(); | ||||
8698 | if (!Processed.insert(VD).second) | ||||
8699 | continue; | ||||
8700 | VD = cast<ValueDecl>(VD->getCanonicalDecl()); | ||||
8701 | const Expr *IE = std::get<1>(L).back().getAssociatedExpression(); | ||||
8702 | // If the first component is a member expression, we have to look into | ||||
8703 | // 'this', which maps to null in the map of map information. Otherwise | ||||
8704 | // look directly for the information. | ||||
8705 | auto It = Info.find(isa<MemberExpr>(IE) ? nullptr : VD); | ||||
8706 | |||||
8707 | // We potentially have map information for this declaration already. | ||||
8708 | // Look for the first set of components that refer to it. | ||||
8709 | if (It != Info.end()) { | ||||
8710 | bool Found = false; | ||||
8711 | for (auto &Data : It->second) { | ||||
8712 | auto *CI = llvm::find_if(Data, [VD](const MapInfo &MI) { | ||||
8713 | return MI.Components.back().getAssociatedDeclaration() == VD; | ||||
8714 | }); | ||||
8715 | // If we found a map entry, signal that the pointer has to be | ||||
8716 | // returned and move on to the next declaration. | ||||
8717 | if (CI != Data.end()) { | ||||
8718 | CI->ReturnDevicePointer = true; | ||||
8719 | Found = true; | ||||
8720 | break; | ||||
8721 | } | ||||
8722 | } | ||||
8723 | if (Found) | ||||
8724 | continue; | ||||
8725 | } | ||||
8726 | |||||
8727 | // We didn't find any match in our map information - generate a zero | ||||
8728 | // size array section - if the pointer is a struct member we defer this | ||||
8729 | // action until the whole struct has been processed. | ||||
8730 | if (isa<MemberExpr>(IE)) { | ||||
8731 | // Insert the pointer into Info to be processed by | ||||
8732 | // generateInfoForComponentList. Because it is a member pointer | ||||
8733 | // without a pointee, no entry will be generated for it, therefore | ||||
8734 | // we need to generate one after the whole struct has been processed. | ||||
8735 | // Nonetheless, generateInfoForComponentList must be called to take | ||||
8736 | // the pointer into account for the calculation of the range of the | ||||
8737 | // partial struct. | ||||
8738 | InfoGen(nullptr, Other, std::get<1>(L), OMPC_MAP_unknown, llvm::None, | ||||
8739 | llvm::None, /*ReturnDevicePointer=*/false, C->isImplicit(), | ||||
8740 | nullptr, nullptr, /*ForDeviceAddr=*/true); | ||||
8741 | DeferredInfo[nullptr].emplace_back(IE, VD, /*ForDeviceAddr=*/true); | ||||
8742 | } else { | ||||
8743 | llvm::Value *Ptr; | ||||
8744 | if (IE->isGLValue()) | ||||
8745 | Ptr = CGF.EmitLValue(IE).getPointer(CGF); | ||||
8746 | else | ||||
8747 | Ptr = CGF.EmitScalarExpr(IE); | ||||
8748 | CombinedInfo.Exprs.push_back(VD); | ||||
8749 | CombinedInfo.BasePointers.emplace_back(Ptr, VD); | ||||
8750 | CombinedInfo.Pointers.push_back(Ptr); | ||||
8751 | CombinedInfo.Sizes.push_back( | ||||
8752 | llvm::Constant::getNullValue(CGF.Int64Ty)); | ||||
8753 | CombinedInfo.Types.push_back(OMP_MAP_RETURN_PARAM); | ||||
8754 | CombinedInfo.Mappers.push_back(nullptr); | ||||
8755 | } | ||||
8756 | } | ||||
8757 | } | ||||
8758 | |||||
8759 | for (const auto &Data : Info) { | ||||
8760 | StructRangeInfoTy PartialStruct; | ||||
8761 | // Temporary generated information. | ||||
8762 | MapCombinedInfoTy CurInfo; | ||||
8763 | const Decl *D = Data.first; | ||||
8764 | const ValueDecl *VD = cast_or_null<ValueDecl>(D); | ||||
8765 | for (const auto &M : Data.second) { | ||||
8766 | for (const MapInfo &L : M) { | ||||
8767 | assert(!L.Components.empty() &&((void)0) | ||||
8768 | "Not expecting declaration with no component lists.")((void)0); | ||||
8769 | |||||
8770 | // Remember the current base pointer index. | ||||
8771 | unsigned CurrentBasePointersIdx = CurInfo.BasePointers.size(); | ||||
8772 | CurInfo.NonContigInfo.IsNonContiguous = | ||||
8773 | L.Components.back().isNonContiguous(); | ||||
8774 | generateInfoForComponentList( | ||||
8775 | L.MapType, L.MapModifiers, L.MotionModifiers, L.Components, | ||||
8776 | CurInfo, PartialStruct, /*IsFirstComponentList=*/false, | ||||
8777 | L.IsImplicit, L.Mapper, L.ForDeviceAddr, VD, L.VarRef); | ||||
8778 | |||||
8779 | // If this entry relates with a device pointer, set the relevant | ||||
8780 | // declaration and add the 'return pointer' flag. | ||||
8781 | if (L.ReturnDevicePointer) { | ||||
8782 | assert(CurInfo.BasePointers.size() > CurrentBasePointersIdx &&((void)0) | ||||
8783 | "Unexpected number of mapped base pointers.")((void)0); | ||||
8784 | |||||
8785 | const ValueDecl *RelevantVD = | ||||
8786 | L.Components.back().getAssociatedDeclaration(); | ||||
8787 | assert(RelevantVD &&((void)0) | ||||
8788 | "No relevant declaration related with device pointer??")((void)0); | ||||
8789 | |||||
8790 | CurInfo.BasePointers[CurrentBasePointersIdx].setDevicePtrDecl( | ||||
8791 | RelevantVD); | ||||
8792 | CurInfo.Types[CurrentBasePointersIdx] |= OMP_MAP_RETURN_PARAM; | ||||
8793 | } | ||||
8794 | } | ||||
8795 | } | ||||
8796 | |||||
8797 | // Append any pending zero-length pointers which are struct members and | ||||
8798 | // used with use_device_ptr or use_device_addr. | ||||
8799 | auto CI = DeferredInfo.find(Data.first); | ||||
8800 | if (CI != DeferredInfo.end()) { | ||||
8801 | for (const DeferredDevicePtrEntryTy &L : CI->second) { | ||||
8802 | llvm::Value *BasePtr; | ||||
8803 | llvm::Value *Ptr; | ||||
8804 | if (L.ForDeviceAddr) { | ||||
8805 | if (L.IE->isGLValue()) | ||||
8806 | Ptr = this->CGF.EmitLValue(L.IE).getPointer(CGF); | ||||
8807 | else | ||||
8808 | Ptr = this->CGF.EmitScalarExpr(L.IE); | ||||
8809 | BasePtr = Ptr; | ||||
8810 | // Entry is RETURN_PARAM. Also, set the placeholder value | ||||
8811 | // MEMBER_OF=FFFF so that the entry is later updated with the | ||||
8812 | // correct value of MEMBER_OF. | ||||
8813 | CurInfo.Types.push_back(OMP_MAP_RETURN_PARAM | OMP_MAP_MEMBER_OF); | ||||
8814 | } else { | ||||
8815 | BasePtr = this->CGF.EmitLValue(L.IE).getPointer(CGF); | ||||
8816 | Ptr = this->CGF.EmitLoadOfScalar(this->CGF.EmitLValue(L.IE), | ||||
8817 | L.IE->getExprLoc()); | ||||
8818 | // Entry is PTR_AND_OBJ and RETURN_PARAM. Also, set the | ||||
8819 | // placeholder value MEMBER_OF=FFFF so that the entry is later | ||||
8820 | // updated with the correct value of MEMBER_OF. | ||||
8821 | CurInfo.Types.push_back(OMP_MAP_PTR_AND_OBJ | OMP_MAP_RETURN_PARAM | | ||||
8822 | OMP_MAP_MEMBER_OF); | ||||
8823 | } | ||||
8824 | CurInfo.Exprs.push_back(L.VD); | ||||
8825 | CurInfo.BasePointers.emplace_back(BasePtr, L.VD); | ||||
8826 | CurInfo.Pointers.push_back(Ptr); | ||||
8827 | CurInfo.Sizes.push_back( | ||||
8828 | llvm::Constant::getNullValue(this->CGF.Int64Ty)); | ||||
8829 | CurInfo.Mappers.push_back(nullptr); | ||||
8830 | } | ||||
8831 | } | ||||
8832 | // If there is an entry in PartialStruct it means we have a struct with | ||||
8833 | // individual members mapped. Emit an extra combined entry. | ||||
8834 | if (PartialStruct.Base.isValid()) { | ||||
8835 | CurInfo.NonContigInfo.Dims.push_back(0); | ||||
8836 | emitCombinedEntry(CombinedInfo, CurInfo.Types, PartialStruct, VD); | ||||
8837 | } | ||||
8838 | |||||
8839 | // We need to append the results of this capture to what we already | ||||
8840 | // have. | ||||
8841 | CombinedInfo.append(CurInfo); | ||||
8842 | } | ||||
8843 | // Append data for use_device_ptr clauses. | ||||
8844 | CombinedInfo.append(UseDevicePtrCombinedInfo); | ||||
8845 | } | ||||
8846 | |||||
8847 | public: | ||||
8848 | MappableExprsHandler(const OMPExecutableDirective &Dir, CodeGenFunction &CGF) | ||||
8849 | : CurDir(&Dir), CGF(CGF) { | ||||
8850 | // Extract firstprivate clause information. | ||||
8851 | for (const auto *C : Dir.getClausesOfKind<OMPFirstprivateClause>()) | ||||
8852 | for (const auto *D : C->varlists()) | ||||
8853 | FirstPrivateDecls.try_emplace( | ||||
8854 | cast<VarDecl>(cast<DeclRefExpr>(D)->getDecl()), C->isImplicit()); | ||||
8855 | // Extract implicit firstprivates from uses_allocators clauses. | ||||
8856 | for (const auto *C : Dir.getClausesOfKind<OMPUsesAllocatorsClause>()) { | ||||
8857 | for (unsigned I = 0, E = C->getNumberOfAllocators(); I < E; ++I) { | ||||
8858 | OMPUsesAllocatorsClause::Data D = C->getAllocatorData(I); | ||||
8859 | if (const auto *DRE = dyn_cast_or_null<DeclRefExpr>(D.AllocatorTraits)) | ||||
8860 | FirstPrivateDecls.try_emplace(cast<VarDecl>(DRE->getDecl()), | ||||
8861 | /*Implicit=*/true); | ||||
8862 | else if (const auto *VD = dyn_cast<VarDecl>( | ||||
8863 | cast<DeclRefExpr>(D.Allocator->IgnoreParenImpCasts()) | ||||
8864 | ->getDecl())) | ||||
8865 | FirstPrivateDecls.try_emplace(VD, /*Implicit=*/true); | ||||
8866 | } | ||||
8867 | } | ||||
8868 | // Extract device pointer clause information. | ||||
8869 | for (const auto *C : Dir.getClausesOfKind<OMPIsDevicePtrClause>()) | ||||
8870 | for (auto L : C->component_lists()) | ||||
8871 | DevPointersMap[std::get<0>(L)].push_back(std::get<1>(L)); | ||||
8872 | } | ||||
8873 | |||||
8874 | /// Constructor for the declare mapper directive. | ||||
8875 | MappableExprsHandler(const OMPDeclareMapperDecl &Dir, CodeGenFunction &CGF) | ||||
8876 | : CurDir(&Dir), CGF(CGF) {} | ||||
8877 | |||||
8878 | /// Generate code for the combined entry if we have a partially mapped struct | ||||
8879 | /// and take care of the mapping flags of the arguments corresponding to | ||||
8880 | /// individual struct members. | ||||
8881 | void emitCombinedEntry(MapCombinedInfoTy &CombinedInfo, | ||||
8882 | MapFlagsArrayTy &CurTypes, | ||||
8883 | const StructRangeInfoTy &PartialStruct, | ||||
8884 | const ValueDecl *VD = nullptr, | ||||
8885 | bool NotTargetParams = true) const { | ||||
8886 | if (CurTypes.size() == 1 && | ||||
8887 | ((CurTypes.back() & OMP_MAP_MEMBER_OF) != OMP_MAP_MEMBER_OF) && | ||||
8888 | !PartialStruct.IsArraySection) | ||||
8889 | return; | ||||
8890 | Address LBAddr = PartialStruct.LowestElem.second; | ||||
8891 | Address HBAddr = PartialStruct.HighestElem.second; | ||||
8892 | if (PartialStruct.HasCompleteRecord) { | ||||
8893 | LBAddr = PartialStruct.LB; | ||||
8894 | HBAddr = PartialStruct.LB; | ||||
8895 | } | ||||
8896 | CombinedInfo.Exprs.push_back(VD); | ||||
8897 | // Base is the base of the struct | ||||
8898 | CombinedInfo.BasePointers.push_back(PartialStruct.Base.getPointer()); | ||||
8899 | // Pointer is the address of the lowest element | ||||
8900 | llvm::Value *LB = LBAddr.getPointer(); | ||||
8901 | CombinedInfo.Pointers.push_back(LB); | ||||
8902 | // There should not be a mapper for a combined entry. | ||||
8903 | CombinedInfo.Mappers.push_back(nullptr); | ||||
8904 | // Size is (addr of {highest+1} element) - (addr of lowest element) | ||||
8905 | llvm::Value *HB = HBAddr.getPointer(); | ||||
8906 | llvm::Value *HAddr = | ||||
8907 | CGF.Builder.CreateConstGEP1_32(HBAddr.getElementType(), HB, /*Idx0=*/1); | ||||
8908 | llvm::Value *CLAddr = CGF.Builder.CreatePointerCast(LB, CGF.VoidPtrTy); | ||||
8909 | llvm::Value *CHAddr = CGF.Builder.CreatePointerCast(HAddr, CGF.VoidPtrTy); | ||||
8910 | llvm::Value *Diff = CGF.Builder.CreatePtrDiff(CHAddr, CLAddr); | ||||
8911 | llvm::Value *Size = CGF.Builder.CreateIntCast(Diff, CGF.Int64Ty, | ||||
8912 | /*isSigned=*/false); | ||||
8913 | CombinedInfo.Sizes.push_back(Size); | ||||
8914 | // Map type is always TARGET_PARAM, if generate info for captures. | ||||
8915 | CombinedInfo.Types.push_back(NotTargetParams ? OMP_MAP_NONE | ||||
8916 | : OMP_MAP_TARGET_PARAM); | ||||
8917 | // If any element has the present modifier, then make sure the runtime | ||||
8918 | // doesn't attempt to allocate the struct. | ||||
8919 | if (CurTypes.end() != | ||||
8920 | llvm::find_if(CurTypes, [](OpenMPOffloadMappingFlags Type) { | ||||
8921 | return Type & OMP_MAP_PRESENT; | ||||
8922 | })) | ||||
8923 | CombinedInfo.Types.back() |= OMP_MAP_PRESENT; | ||||
8924 | // Remove TARGET_PARAM flag from the first element | ||||
8925 | (*CurTypes.begin()) &= ~OMP_MAP_TARGET_PARAM; | ||||
8926 | |||||
8927 | // All other current entries will be MEMBER_OF the combined entry | ||||
8928 | // (except for PTR_AND_OBJ entries which do not have a placeholder value | ||||
8929 | // 0xFFFF in the MEMBER_OF field). | ||||
8930 | OpenMPOffloadMappingFlags MemberOfFlag = | ||||
8931 | getMemberOfFlag(CombinedInfo.BasePointers.size() - 1); | ||||
8932 | for (auto &M : CurTypes) | ||||
8933 | setCorrectMemberOfFlag(M, MemberOfFlag); | ||||
8934 | } | ||||
8935 | |||||
8936 | /// Generate all the base pointers, section pointers, sizes, map types, and | ||||
8937 | /// mappers for the extracted mappable expressions (all included in \a | ||||
8938 | /// CombinedInfo). Also, for each item that relates with a device pointer, a | ||||
8939 | /// pair of the relevant declaration and index where it occurs is appended to | ||||
8940 | /// the device pointers info array. | ||||
8941 | void generateAllInfo( | ||||
8942 | MapCombinedInfoTy &CombinedInfo, | ||||
8943 | const llvm::DenseSet<CanonicalDeclPtr<const Decl>> &SkipVarSet = | ||||
8944 | llvm::DenseSet<CanonicalDeclPtr<const Decl>>()) const { | ||||
8945 | assert(CurDir.is<const OMPExecutableDirective *>() &&((void)0) | ||||
8946 | "Expect a executable directive")((void)0); | ||||
8947 | const auto *CurExecDir = CurDir.get<const OMPExecutableDirective *>(); | ||||
8948 | generateAllInfoForClauses(CurExecDir->clauses(), CombinedInfo, SkipVarSet); | ||||
8949 | } | ||||
8950 | |||||
8951 | /// Generate all the base pointers, section pointers, sizes, map types, and | ||||
8952 | /// mappers for the extracted map clauses of user-defined mapper (all included | ||||
8953 | /// in \a CombinedInfo). | ||||
8954 | void generateAllInfoForMapper(MapCombinedInfoTy &CombinedInfo) const { | ||||
8955 | assert(CurDir.is<const OMPDeclareMapperDecl *>() &&((void)0) | ||||
8956 | "Expect a declare mapper directive")((void)0); | ||||
8957 | const auto *CurMapperDir = CurDir.get<const OMPDeclareMapperDecl *>(); | ||||
8958 | generateAllInfoForClauses(CurMapperDir->clauses(), CombinedInfo); | ||||
8959 | } | ||||
8960 | |||||
8961 | /// Emit capture info for lambdas for variables captured by reference. | ||||
8962 | void generateInfoForLambdaCaptures( | ||||
8963 | const ValueDecl *VD, llvm::Value *Arg, MapCombinedInfoTy &CombinedInfo, | ||||
8964 | llvm::DenseMap<llvm::Value *, llvm::Value *> &LambdaPointers) const { | ||||
8965 | const auto *RD = VD->getType() | ||||
8966 | .getCanonicalType() | ||||
8967 | .getNonReferenceType() | ||||
8968 | ->getAsCXXRecordDecl(); | ||||
8969 | if (!RD || !RD->isLambda()) | ||||
8970 | return; | ||||
8971 | Address VDAddr = Address(Arg, CGF.getContext().getDeclAlign(VD)); | ||||
8972 | LValue VDLVal = CGF.MakeAddrLValue( | ||||
8973 | VDAddr, VD->getType().getCanonicalType().getNonReferenceType()); | ||||
8974 | llvm::DenseMap<const VarDecl *, FieldDecl *> Captures; | ||||
8975 | FieldDecl *ThisCapture = nullptr; | ||||
8976 | RD->getCaptureFields(Captures, ThisCapture); | ||||
8977 | if (ThisCapture) { | ||||
8978 | LValue ThisLVal = | ||||
8979 | CGF.EmitLValueForFieldInitialization(VDLVal, ThisCapture); | ||||
8980 | LValue ThisLValVal = CGF.EmitLValueForField(VDLVal, ThisCapture); | ||||
8981 | LambdaPointers.try_emplace(ThisLVal.getPointer(CGF), | ||||
8982 | VDLVal.getPointer(CGF)); | ||||
8983 | CombinedInfo.Exprs.push_back(VD); | ||||
8984 | CombinedInfo.BasePointers.push_back(ThisLVal.getPointer(CGF)); | ||||
8985 | CombinedInfo.Pointers.push_back(ThisLValVal.getPointer(CGF)); | ||||
8986 | CombinedInfo.Sizes.push_back( | ||||
8987 | CGF.Builder.CreateIntCast(CGF.getTypeSize(CGF.getContext().VoidPtrTy), | ||||
8988 | CGF.Int64Ty, /*isSigned=*/true)); | ||||
8989 | CombinedInfo.Types.push_back(OMP_MAP_PTR_AND_OBJ | OMP_MAP_LITERAL | | ||||
8990 | OMP_MAP_MEMBER_OF | OMP_MAP_IMPLICIT); | ||||
8991 | CombinedInfo.Mappers.push_back(nullptr); | ||||
8992 | } | ||||
8993 | for (const LambdaCapture &LC : RD->captures()) { | ||||
8994 | if (!LC.capturesVariable()) | ||||
8995 | continue; | ||||
8996 | const VarDecl *VD = LC.getCapturedVar(); | ||||
8997 | if (LC.getCaptureKind() != LCK_ByRef && !VD->getType()->isPointerType()) | ||||
8998 | continue; | ||||
8999 | auto It = Captures.find(VD); | ||||
9000 | assert(It != Captures.end() && "Found lambda capture without field.")((void)0); | ||||
9001 | LValue VarLVal = CGF.EmitLValueForFieldInitialization(VDLVal, It->second); | ||||
9002 | if (LC.getCaptureKind() == LCK_ByRef) { | ||||
9003 | LValue VarLValVal = CGF.EmitLValueForField(VDLVal, It->second); | ||||
9004 | LambdaPointers.try_emplace(VarLVal.getPointer(CGF), | ||||
9005 | VDLVal.getPointer(CGF)); | ||||
9006 | CombinedInfo.Exprs.push_back(VD); | ||||
9007 | CombinedInfo.BasePointers.push_back(VarLVal.getPointer(CGF)); | ||||
9008 | CombinedInfo.Pointers.push_back(VarLValVal.getPointer(CGF)); | ||||
9009 | CombinedInfo.Sizes.push_back(CGF.Builder.CreateIntCast( | ||||
9010 | CGF.getTypeSize( | ||||
9011 | VD->getType().getCanonicalType().getNonReferenceType()), | ||||
9012 | CGF.Int64Ty, /*isSigned=*/true)); | ||||
9013 | } else { | ||||
9014 | RValue VarRVal = CGF.EmitLoadOfLValue(VarLVal, RD->getLocation()); | ||||
9015 | LambdaPointers.try_emplace(VarLVal.getPointer(CGF), | ||||
9016 | VDLVal.getPointer(CGF)); | ||||
9017 | CombinedInfo.Exprs.push_back(VD); | ||||
9018 | CombinedInfo.BasePointers.push_back(VarLVal.getPointer(CGF)); | ||||
9019 | CombinedInfo.Pointers.push_back(VarRVal.getScalarVal()); | ||||
9020 | CombinedInfo.Sizes.push_back(llvm::ConstantInt::get(CGF.Int64Ty, 0)); | ||||
9021 | } | ||||
9022 | CombinedInfo.Types.push_back(OMP_MAP_PTR_AND_OBJ | OMP_MAP_LITERAL | | ||||
9023 | OMP_MAP_MEMBER_OF | OMP_MAP_IMPLICIT); | ||||
9024 | CombinedInfo.Mappers.push_back(nullptr); | ||||
9025 | } | ||||
9026 | } | ||||
9027 | |||||
9028 | /// Set correct indices for lambdas captures. | ||||
9029 | void adjustMemberOfForLambdaCaptures( | ||||
9030 | const llvm::DenseMap<llvm::Value *, llvm::Value *> &LambdaPointers, | ||||
9031 | MapBaseValuesArrayTy &BasePointers, MapValuesArrayTy &Pointers, | ||||
9032 | MapFlagsArrayTy &Types) const { | ||||
9033 | for (unsigned I = 0, E = Types.size(); I < E; ++I) { | ||||
9034 | // Set correct member_of idx for all implicit lambda captures. | ||||
9035 | if (Types[I] != (OMP_MAP_PTR_AND_OBJ | OMP_MAP_LITERAL | | ||||
9036 | OMP_MAP_MEMBER_OF | OMP_MAP_IMPLICIT)) | ||||
9037 | continue; | ||||
9038 | llvm::Value *BasePtr = LambdaPointers.lookup(*BasePointers[I]); | ||||
9039 | assert(BasePtr && "Unable to find base lambda address.")((void)0); | ||||
9040 | int TgtIdx = -1; | ||||
9041 | for (unsigned J = I; J > 0; --J) { | ||||
9042 | unsigned Idx = J - 1; | ||||
9043 | if (Pointers[Idx] != BasePtr) | ||||
9044 | continue; | ||||
9045 | TgtIdx = Idx; | ||||
9046 | break; | ||||
9047 | } | ||||
9048 | assert(TgtIdx != -1 && "Unable to find parent lambda.")((void)0); | ||||
9049 | // All other current entries will be MEMBER_OF the combined entry | ||||
9050 | // (except for PTR_AND_OBJ entries which do not have a placeholder value | ||||
9051 | // 0xFFFF in the MEMBER_OF field). | ||||
9052 | OpenMPOffloadMappingFlags MemberOfFlag = getMemberOfFlag(TgtIdx); | ||||
9053 | setCorrectMemberOfFlag(Types[I], MemberOfFlag); | ||||
9054 | } | ||||
9055 | } | ||||
9056 | |||||
9057 | /// Generate the base pointers, section pointers, sizes, map types, and | ||||
9058 | /// mappers associated to a given capture (all included in \a CombinedInfo). | ||||
9059 | void generateInfoForCapture(const CapturedStmt::Capture *Cap, | ||||
9060 | llvm::Value *Arg, MapCombinedInfoTy &CombinedInfo, | ||||
9061 | StructRangeInfoTy &PartialStruct) const { | ||||
9062 | assert(!Cap->capturesVariableArrayType() &&((void)0) | ||||
9063 | "Not expecting to generate map info for a variable array type!")((void)0); | ||||
9064 | |||||
9065 | // We need to know when we generating information for the first component | ||||
9066 | const ValueDecl *VD = Cap->capturesThis() | ||||
9067 | ? nullptr | ||||
9068 | : Cap->getCapturedVar()->getCanonicalDecl(); | ||||
9069 | |||||
9070 | // If this declaration appears in a is_device_ptr clause we just have to | ||||
9071 | // pass the pointer by value. If it is a reference to a declaration, we just | ||||
9072 | // pass its value. | ||||
9073 | if (DevPointersMap.count(VD)) { | ||||
9074 | CombinedInfo.Exprs.push_back(VD); | ||||
9075 | CombinedInfo.BasePointers.emplace_back(Arg, VD); | ||||
9076 | CombinedInfo.Pointers.push_back(Arg); | ||||
9077 | CombinedInfo.Sizes.push_back(CGF.Builder.CreateIntCast( | ||||
9078 | CGF.getTypeSize(CGF.getContext().VoidPtrTy), CGF.Int64Ty, | ||||
9079 | /*isSigned=*/true)); | ||||
9080 | CombinedInfo.Types.push_back( | ||||
9081 | (Cap->capturesVariable() ? OMP_MAP_TO : OMP_MAP_LITERAL) | | ||||
9082 | OMP_MAP_TARGET_PARAM); | ||||
9083 | CombinedInfo.Mappers.push_back(nullptr); | ||||
9084 | return; | ||||
9085 | } | ||||
9086 | |||||
9087 | using MapData = | ||||
9088 | std::tuple<OMPClauseMappableExprCommon::MappableExprComponentListRef, | ||||
9089 | OpenMPMapClauseKind, ArrayRef<OpenMPMapModifierKind>, bool, | ||||
9090 | const ValueDecl *, const Expr *>; | ||||
9091 | SmallVector<MapData, 4> DeclComponentLists; | ||||
9092 | assert(CurDir.is<const OMPExecutableDirective *>() &&((void)0) | ||||
9093 | "Expect a executable directive")((void)0); | ||||
9094 | const auto *CurExecDir = CurDir.get<const OMPExecutableDirective *>(); | ||||
9095 | for (const auto *C : CurExecDir->getClausesOfKind<OMPMapClause>()) { | ||||
9096 | const auto *EI = C->getVarRefs().begin(); | ||||
9097 | for (const auto L : C->decl_component_lists(VD)) { | ||||
9098 | const ValueDecl *VDecl, *Mapper; | ||||
9099 | // The Expression is not correct if the mapping is implicit | ||||
9100 | const Expr *E = (C->getMapLoc().isValid()) ? *EI : nullptr; | ||||
9101 | OMPClauseMappableExprCommon::MappableExprComponentListRef Components; | ||||
9102 | std::tie(VDecl, Components, Mapper) = L; | ||||
9103 | assert(VDecl == VD && "We got information for the wrong declaration??")((void)0); | ||||
9104 | assert(!Components.empty() &&((void)0) | ||||
9105 | "Not expecting declaration with no component lists.")((void)0); | ||||
9106 | DeclComponentLists.emplace_back(Components, C->getMapType(), | ||||
9107 | C->getMapTypeModifiers(), | ||||
9108 | C->isImplicit(), Mapper, E); | ||||
9109 | ++EI; | ||||
9110 | } | ||||
9111 | } | ||||
9112 | llvm::stable_sort(DeclComponentLists, [](const MapData &LHS, | ||||
9113 | const MapData &RHS) { | ||||
9114 | ArrayRef<OpenMPMapModifierKind> MapModifiers = std::get<2>(LHS); | ||||
9115 | OpenMPMapClauseKind MapType = std::get<1>(RHS); | ||||
9116 | bool HasPresent = !MapModifiers.empty() && | ||||
9117 | llvm::any_of(MapModifiers, [](OpenMPMapModifierKind K) { | ||||
9118 | return K == clang::OMPC_MAP_MODIFIER_present; | ||||
9119 | }); | ||||
9120 | bool HasAllocs = MapType == OMPC_MAP_alloc; | ||||
9121 | MapModifiers = std::get<2>(RHS); | ||||
9122 | MapType = std::get<1>(LHS); | ||||
9123 | bool HasPresentR = | ||||
9124 | !MapModifiers.empty() && | ||||
9125 | llvm::any_of(MapModifiers, [](OpenMPMapModifierKind K) { | ||||
9126 | return K == clang::OMPC_MAP_MODIFIER_present; | ||||
9127 | }); | ||||
9128 | bool HasAllocsR = MapType == OMPC_MAP_alloc; | ||||
9129 | return (HasPresent && !HasPresentR) || (HasAllocs && !HasAllocsR); | ||||
9130 | }); | ||||
9131 | |||||
9132 | // Find overlapping elements (including the offset from the base element). | ||||
9133 | llvm::SmallDenseMap< | ||||
9134 | const MapData *, | ||||
9135 | llvm::SmallVector< | ||||
9136 | OMPClauseMappableExprCommon::MappableExprComponentListRef, 4>, | ||||
9137 | 4> | ||||
9138 | OverlappedData; | ||||
9139 | size_t Count = 0; | ||||
9140 | for (const MapData &L : DeclComponentLists) { | ||||
9141 | OMPClauseMappableExprCommon::MappableExprComponentListRef Components; | ||||
9142 | OpenMPMapClauseKind MapType; | ||||
9143 | ArrayRef<OpenMPMapModifierKind> MapModifiers; | ||||
9144 | bool IsImplicit; | ||||
9145 | const ValueDecl *Mapper; | ||||
9146 | const Expr *VarRef; | ||||
9147 | std::tie(Components, MapType, MapModifiers, IsImplicit, Mapper, VarRef) = | ||||
9148 | L; | ||||
9149 | ++Count; | ||||
9150 | for (const MapData &L1 : makeArrayRef(DeclComponentLists).slice(Count)) { | ||||
9151 | OMPClauseMappableExprCommon::MappableExprComponentListRef Components1; | ||||
9152 | std::tie(Components1, MapType, MapModifiers, IsImplicit, Mapper, | ||||
9153 | VarRef) = L1; | ||||
9154 | auto CI = Components.rbegin(); | ||||
9155 | auto CE = Components.rend(); | ||||
9156 | auto SI = Components1.rbegin(); | ||||
9157 | auto SE = Components1.rend(); | ||||
9158 | for (; CI != CE && SI != SE; ++CI, ++SI) { | ||||
9159 | if (CI->getAssociatedExpression()->getStmtClass() != | ||||
9160 | SI->getAssociatedExpression()->getStmtClass()) | ||||
9161 | break; | ||||
9162 | // Are we dealing with different variables/fields? | ||||
9163 | if (CI->getAssociatedDeclaration() != SI->getAssociatedDeclaration()) | ||||
9164 | break; | ||||
9165 | } | ||||
9166 | // Found overlapping if, at least for one component, reached the head | ||||
9167 | // of the components list. | ||||
9168 | if (CI == CE || SI == SE) { | ||||
9169 | // Ignore it if it is the same component. | ||||
9170 | if (CI == CE && SI == SE) | ||||
9171 | continue; | ||||
9172 | const auto It = (SI == SE) ? CI : SI; | ||||
9173 | // If one component is a pointer and another one is a kind of | ||||
9174 | // dereference of this pointer (array subscript, section, dereference, | ||||
9175 | // etc.), it is not an overlapping. | ||||
9176 | // Same, if one component is a base and another component is a | ||||
9177 | // dereferenced pointer memberexpr with the same base. | ||||
9178 | if (!isa<MemberExpr>(It->getAssociatedExpression()) || | ||||
9179 | (std::prev(It)->getAssociatedDeclaration() && | ||||
9180 | std::prev(It) | ||||
9181 | ->getAssociatedDeclaration() | ||||
9182 | ->getType() | ||||
9183 | ->isPointerType()) || | ||||
9184 | (It->getAssociatedDeclaration() && | ||||
9185 | It->getAssociatedDeclaration()->getType()->isPointerType() && | ||||
9186 | std::next(It) != CE && std::next(It) != SE)) | ||||
9187 | continue; | ||||
9188 | const MapData &BaseData = CI == CE ? L : L1; | ||||
9189 | OMPClauseMappableExprCommon::MappableExprComponentListRef SubData = | ||||
9190 | SI == SE ? Components : Components1; | ||||
9191 | auto &OverlappedElements = OverlappedData.FindAndConstruct(&BaseData); | ||||
9192 | OverlappedElements.getSecond().push_back(SubData); | ||||
9193 | } | ||||
9194 | } | ||||
9195 | } | ||||
9196 | // Sort the overlapped elements for each item. | ||||
9197 | llvm::SmallVector<const FieldDecl *, 4> Layout; | ||||
9198 | if (!OverlappedData.empty()) { | ||||
9199 | const Type *BaseType = VD->getType().getCanonicalType().getTypePtr(); | ||||
| |||||
9200 | const Type *OrigType = BaseType->getPointeeOrArrayElementType(); | ||||
9201 | while (BaseType != OrigType) { | ||||
9202 | BaseType = OrigType->getCanonicalTypeInternal().getTypePtr(); | ||||
9203 | OrigType = BaseType->getPointeeOrArrayElementType(); | ||||
9204 | } | ||||
9205 | |||||
9206 | if (const auto *CRD = BaseType->getAsCXXRecordDecl()) | ||||
9207 | getPlainLayout(CRD, Layout, /*AsBase=*/false); | ||||
9208 | else { | ||||
9209 | const auto *RD = BaseType->getAsRecordDecl(); | ||||
9210 | Layout.append(RD->field_begin(), RD->field_end()); | ||||
9211 | } | ||||
9212 | } | ||||
9213 | for (auto &Pair : OverlappedData) { | ||||
9214 | llvm::stable_sort( | ||||
9215 | Pair.getSecond(), | ||||
9216 | [&Layout]( | ||||
9217 | OMPClauseMappableExprCommon::MappableExprComponentListRef First, | ||||
9218 | OMPClauseMappableExprCommon::MappableExprComponentListRef | ||||
9219 | Second) { | ||||
9220 | auto CI = First.rbegin(); | ||||
9221 | auto CE = First.rend(); | ||||
9222 | auto SI = Second.rbegin(); | ||||
9223 | auto SE = Second.rend(); | ||||
9224 | for (; CI != CE && SI != SE; ++CI, ++SI) { | ||||
9225 | if (CI->getAssociatedExpression()->getStmtClass() != | ||||
9226 | SI->getAssociatedExpression()->getStmtClass()) | ||||
9227 | break; | ||||
9228 | // Are we dealing with different variables/fields? | ||||
9229 | if (CI->getAssociatedDeclaration() != | ||||
9230 | SI->getAssociatedDeclaration()) | ||||
9231 | break; | ||||
9232 | } | ||||
9233 | |||||
9234 | // Lists contain the same elements. | ||||
9235 | if (CI == CE && SI == SE) | ||||
9236 | return false; | ||||
9237 | |||||
9238 | // List with less elements is less than list with more elements. | ||||
9239 | if (CI == CE || SI == SE) | ||||
9240 | return CI == CE; | ||||
9241 | |||||
9242 | const auto *FD1 = cast<FieldDecl>(CI->getAssociatedDeclaration()); | ||||
9243 | const auto *FD2 = cast<FieldDecl>(SI->getAssociatedDeclaration()); | ||||
9244 | if (FD1->getParent() == FD2->getParent()) | ||||
9245 | return FD1->getFieldIndex() < FD2->getFieldIndex(); | ||||
9246 | const auto *It = | ||||
9247 | llvm::find_if(Layout, [FD1, FD2](const FieldDecl *FD) { | ||||
9248 | return FD == FD1 || FD == FD2; | ||||
9249 | }); | ||||
9250 | return *It == FD1; | ||||
9251 | }); | ||||
9252 | } | ||||
9253 | |||||
9254 | // Associated with a capture, because the mapping flags depend on it. | ||||
9255 | // Go through all of the elements with the overlapped elements. | ||||
9256 | bool IsFirstComponentList = true; | ||||
9257 | for (const auto &Pair : OverlappedData) { | ||||
9258 | const MapData &L = *Pair.getFirst(); | ||||
9259 | OMPClauseMappableExprCommon::MappableExprComponentListRef Components; | ||||
9260 | OpenMPMapClauseKind MapType; | ||||
9261 | ArrayRef<OpenMPMapModifierKind> MapModifiers; | ||||
9262 | bool IsImplicit; | ||||
9263 | const ValueDecl *Mapper; | ||||
9264 | const Expr *VarRef; | ||||
9265 | std::tie(Components, MapType, MapModifiers, IsImplicit, Mapper, VarRef) = | ||||
9266 | L; | ||||
9267 | ArrayRef<OMPClauseMappableExprCommon::MappableExprComponentListRef> | ||||
9268 | OverlappedComponents = Pair.getSecond(); | ||||
9269 | generateInfoForComponentList( | ||||
9270 | MapType, MapModifiers, llvm::None, Components, CombinedInfo, | ||||
9271 | PartialStruct, IsFirstComponentList, IsImplicit, Mapper, | ||||
9272 | /*ForDeviceAddr=*/false, VD, VarRef, OverlappedComponents); | ||||
9273 | IsFirstComponentList = false; | ||||
9274 | } | ||||
9275 | // Go through other elements without overlapped elements. | ||||
9276 | for (const MapData &L : DeclComponentLists) { | ||||
9277 | OMPClauseMappableExprCommon::MappableExprComponentListRef Components; | ||||
9278 | OpenMPMapClauseKind MapType; | ||||
9279 | ArrayRef<OpenMPMapModifierKind> MapModifiers; | ||||
9280 | bool IsImplicit; | ||||
9281 | const ValueDecl *Mapper; | ||||
9282 | const Expr *VarRef; | ||||
9283 | std::tie(Components, MapType, MapModifiers, IsImplicit, Mapper, VarRef) = | ||||
9284 | L; | ||||
9285 | auto It = OverlappedData.find(&L); | ||||
9286 | if (It == OverlappedData.end()) | ||||
9287 | generateInfoForComponentList(MapType, MapModifiers, llvm::None, | ||||
9288 | Components, CombinedInfo, PartialStruct, | ||||
9289 | IsFirstComponentList, IsImplicit, Mapper, | ||||
9290 | /*ForDeviceAddr=*/false, VD, VarRef); | ||||
9291 | IsFirstComponentList = false; | ||||
9292 | } | ||||
9293 | } | ||||
9294 | |||||
9295 | /// Generate the default map information for a given capture \a CI, | ||||
9296 | /// record field declaration \a RI and captured value \a CV. | ||||
9297 | void generateDefaultMapInfo(const CapturedStmt::Capture &CI, | ||||
9298 | const FieldDecl &RI, llvm::Value *CV, | ||||
9299 | MapCombinedInfoTy &CombinedInfo) const { | ||||
9300 | bool IsImplicit = true; | ||||
9301 | // Do the default mapping. | ||||
9302 | if (CI.capturesThis()) { | ||||
9303 | CombinedInfo.Exprs.push_back(nullptr); | ||||
9304 | CombinedInfo.BasePointers.push_back(CV); | ||||
9305 | CombinedInfo.Pointers.push_back(CV); | ||||
9306 | const auto *PtrTy = cast<PointerType>(RI.getType().getTypePtr()); | ||||
9307 | CombinedInfo.Sizes.push_back( | ||||
9308 | CGF.Builder.CreateIntCast(CGF.getTypeSize(PtrTy->getPointeeType()), | ||||
9309 | CGF.Int64Ty, /*isSigned=*/true)); | ||||
9310 | // Default map type. | ||||
9311 | CombinedInfo.Types.push_back(OMP_MAP_TO | OMP_MAP_FROM); | ||||
9312 | } else if (CI.capturesVariableByCopy()) { | ||||
9313 | const VarDecl *VD = CI.getCapturedVar(); | ||||
9314 | CombinedInfo.Exprs.push_back(VD->getCanonicalDecl()); | ||||
9315 | CombinedInfo.BasePointers.push_back(CV); | ||||
9316 | CombinedInfo.Pointers.push_back(CV); | ||||
9317 | if (!RI.getType()->isAnyPointerType()) { | ||||
9318 | // We have to signal to the runtime captures passed by value that are | ||||
9319 | // not pointers. | ||||
9320 | CombinedInfo.Types.push_back(OMP_MAP_LITERAL); | ||||
9321 | CombinedInfo.Sizes.push_back(CGF.Builder.CreateIntCast( | ||||
9322 | CGF.getTypeSize(RI.getType()), CGF.Int64Ty, /*isSigned=*/true)); | ||||
9323 | } else { | ||||
9324 | // Pointers are implicitly mapped with a zero size and no flags | ||||
9325 | // (other than first map that is added for all implicit maps). | ||||
9326 | CombinedInfo.Types.push_back(OMP_MAP_NONE); | ||||
9327 | CombinedInfo.Sizes.push_back(llvm::Constant::getNullValue(CGF.Int64Ty)); | ||||
9328 | } | ||||
9329 | auto I = FirstPrivateDecls.find(VD); | ||||
9330 | if (I != FirstPrivateDecls.end()) | ||||
9331 | IsImplicit = I->getSecond(); | ||||
9332 | } else { | ||||
9333 | assert(CI.capturesVariable() && "Expected captured reference.")((void)0); | ||||
9334 | const auto *PtrTy = cast<ReferenceType>(RI.getType().getTypePtr()); | ||||
9335 | QualType ElementType = PtrTy->getPointeeType(); | ||||
9336 | CombinedInfo.Sizes.push_back(CGF.Builder.CreateIntCast( | ||||
9337 | CGF.getTypeSize(ElementType), CGF.Int64Ty, /*isSigned=*/true)); | ||||
9338 | // The default map type for a scalar/complex type is 'to' because by | ||||
9339 | // default the value doesn't have to be retrieved. For an aggregate | ||||
9340 | // type, the default is 'tofrom'. | ||||
9341 | CombinedInfo.Types.push_back(getMapModifiersForPrivateClauses(CI)); | ||||
9342 | const VarDecl *VD = CI.getCapturedVar(); | ||||
9343 | auto I = FirstPrivateDecls.find(VD); | ||||
9344 | CombinedInfo.Exprs.push_back(VD->getCanonicalDecl()); | ||||
9345 | CombinedInfo.BasePointers.push_back(CV); | ||||
9346 | if (I != FirstPrivateDecls.end() && ElementType->isAnyPointerType()) { | ||||
9347 | Address PtrAddr = CGF.EmitLoadOfReference(CGF.MakeAddrLValue( | ||||
9348 | CV, ElementType, CGF.getContext().getDeclAlign(VD), | ||||
9349 | AlignmentSource::Decl)); | ||||
9350 | CombinedInfo.Pointers.push_back(PtrAddr.getPointer()); | ||||
9351 | } else { | ||||
9352 | CombinedInfo.Pointers.push_back(CV); | ||||
9353 | } | ||||
9354 | if (I != FirstPrivateDecls.end()) | ||||
9355 | IsImplicit = I->getSecond(); | ||||
9356 | } | ||||
9357 | // Every default map produces a single argument which is a target parameter. | ||||
9358 | CombinedInfo.Types.back() |= OMP_MAP_TARGET_PARAM; | ||||
9359 | |||||
9360 | // Add flag stating this is an implicit map. | ||||
9361 | if (IsImplicit) | ||||
9362 | CombinedInfo.Types.back() |= OMP_MAP_IMPLICIT; | ||||
9363 | |||||
9364 | // No user-defined mapper for default mapping. | ||||
9365 | CombinedInfo.Mappers.push_back(nullptr); | ||||
9366 | } | ||||
9367 | }; | ||||
9368 | } // anonymous namespace | ||||
9369 | |||||
9370 | static void emitNonContiguousDescriptor( | ||||
9371 | CodeGenFunction &CGF, MappableExprsHandler::MapCombinedInfoTy &CombinedInfo, | ||||
9372 | CGOpenMPRuntime::TargetDataInfo &Info) { | ||||
9373 | CodeGenModule &CGM = CGF.CGM; | ||||
9374 | MappableExprsHandler::MapCombinedInfoTy::StructNonContiguousInfo | ||||
9375 | &NonContigInfo = CombinedInfo.NonContigInfo; | ||||
9376 | |||||
9377 | // Build an array of struct descriptor_dim and then assign it to | ||||
9378 | // offload_args. | ||||
9379 | // | ||||
9380 | // struct descriptor_dim { | ||||
9381 | // uint64_t offset; | ||||
9382 | // uint64_t count; | ||||
9383 | // uint64_t stride | ||||
9384 | // }; | ||||
9385 | ASTContext &C = CGF.getContext(); | ||||
9386 | QualType Int64Ty = C.getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/0); | ||||
9387 | RecordDecl *RD; | ||||
9388 | RD = C.buildImplicitRecord("descriptor_dim"); | ||||
9389 | RD->startDefinition(); | ||||
9390 | addFieldToRecordDecl(C, RD, Int64Ty); | ||||
9391 | addFieldToRecordDecl(C, RD, Int64Ty); | ||||
9392 | addFieldToRecordDecl(C, RD, Int64Ty); | ||||
9393 | RD->completeDefinition(); | ||||
9394 | QualType DimTy = C.getRecordType(RD); | ||||
9395 | |||||
9396 | enum { OffsetFD = 0, CountFD, StrideFD }; | ||||
9397 | // We need two index variable here since the size of "Dims" is the same as the | ||||
9398 | // size of Components, however, the size of offset, count, and stride is equal | ||||
9399 | // to the size of base declaration that is non-contiguous. | ||||
9400 | for (unsigned I = 0, L = 0, E = NonContigInfo.Dims.size(); I < E; ++I) { | ||||
9401 | // Skip emitting ir if dimension size is 1 since it cannot be | ||||
9402 | // non-contiguous. | ||||
9403 | if (NonContigInfo.Dims[I] == 1) | ||||
9404 | continue; | ||||
9405 | llvm::APInt Size(/*numBits=*/32, NonContigInfo.Dims[I]); | ||||
9406 | QualType ArrayTy = | ||||
9407 | C.getConstantArrayType(DimTy, Size, nullptr, ArrayType::Normal, 0); | ||||
9408 | Address DimsAddr = CGF.CreateMemTemp(ArrayTy, "dims"); | ||||
9409 | for (unsigned II = 0, EE = NonContigInfo.Dims[I]; II < EE; ++II) { | ||||
9410 | unsigned RevIdx = EE - II - 1; | ||||
9411 | LValue DimsLVal = CGF.MakeAddrLValue( | ||||
9412 | CGF.Builder.CreateConstArrayGEP(DimsAddr, II), DimTy); | ||||
9413 | // Offset | ||||
9414 | LValue OffsetLVal = CGF.EmitLValueForField( | ||||
9415 | DimsLVal, *std::next(RD->field_begin(), OffsetFD)); | ||||
9416 | CGF.EmitStoreOfScalar(NonContigInfo.Offsets[L][RevIdx], OffsetLVal); | ||||
9417 | // Count | ||||
9418 | LValue CountLVal = CGF.EmitLValueForField( | ||||
9419 | DimsLVal, *std::next(RD->field_begin(), CountFD)); | ||||
9420 | CGF.EmitStoreOfScalar(NonContigInfo.Counts[L][RevIdx], CountLVal); | ||||
9421 | // Stride | ||||
9422 | LValue StrideLVal = CGF.EmitLValueForField( | ||||
9423 | DimsLVal, *std::next(RD->field_begin(), StrideFD)); | ||||
9424 | CGF.EmitStoreOfScalar(NonContigInfo.Strides[L][RevIdx], StrideLVal); | ||||
9425 | } | ||||
9426 | // args[I] = &dims | ||||
9427 | Address DAddr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
9428 | DimsAddr, CGM.Int8PtrTy); | ||||
9429 | llvm::Value *P = CGF.Builder.CreateConstInBoundsGEP2_32( | ||||
9430 | llvm::ArrayType::get(CGM.VoidPtrTy, Info.NumberOfPtrs), | ||||
9431 | Info.PointersArray, 0, I); | ||||
9432 | Address PAddr(P, CGF.getPointerAlign()); | ||||
9433 | CGF.Builder.CreateStore(DAddr.getPointer(), PAddr); | ||||
9434 | ++L; | ||||
9435 | } | ||||
9436 | } | ||||
9437 | |||||
9438 | /// Emit a string constant containing the names of the values mapped to the | ||||
9439 | /// offloading runtime library. | ||||
9440 | llvm::Constant * | ||||
9441 | emitMappingInformation(CodeGenFunction &CGF, llvm::OpenMPIRBuilder &OMPBuilder, | ||||
9442 | MappableExprsHandler::MappingExprInfo &MapExprs) { | ||||
9443 | llvm::Constant *SrcLocStr; | ||||
9444 | if (!MapExprs.getMapDecl()) { | ||||
9445 | SrcLocStr = OMPBuilder.getOrCreateDefaultSrcLocStr(); | ||||
9446 | } else { | ||||
9447 | std::string ExprName = ""; | ||||
9448 | if (MapExprs.getMapExpr()) { | ||||
9449 | PrintingPolicy P(CGF.getContext().getLangOpts()); | ||||
9450 | llvm::raw_string_ostream OS(ExprName); | ||||
9451 | MapExprs.getMapExpr()->printPretty(OS, nullptr, P); | ||||
9452 | OS.flush(); | ||||
9453 | } else { | ||||
9454 | ExprName = MapExprs.getMapDecl()->getNameAsString(); | ||||
9455 | } | ||||
9456 | |||||
9457 | SourceLocation Loc = MapExprs.getMapDecl()->getLocation(); | ||||
9458 | PresumedLoc PLoc = CGF.getContext().getSourceManager().getPresumedLoc(Loc); | ||||
9459 | const char *FileName = PLoc.getFilename(); | ||||
9460 | unsigned Line = PLoc.getLine(); | ||||
9461 | unsigned Column = PLoc.getColumn(); | ||||
9462 | SrcLocStr = OMPBuilder.getOrCreateSrcLocStr(FileName, ExprName.c_str(), | ||||
9463 | Line, Column); | ||||
9464 | } | ||||
9465 | return SrcLocStr; | ||||
9466 | } | ||||
9467 | |||||
9468 | /// Emit the arrays used to pass the captures and map information to the | ||||
9469 | /// offloading runtime library. If there is no map or capture information, | ||||
9470 | /// return nullptr by reference. | ||||
9471 | static void emitOffloadingArrays( | ||||
9472 | CodeGenFunction &CGF, MappableExprsHandler::MapCombinedInfoTy &CombinedInfo, | ||||
9473 | CGOpenMPRuntime::TargetDataInfo &Info, llvm::OpenMPIRBuilder &OMPBuilder, | ||||
9474 | bool IsNonContiguous = false) { | ||||
9475 | CodeGenModule &CGM = CGF.CGM; | ||||
9476 | ASTContext &Ctx = CGF.getContext(); | ||||
9477 | |||||
9478 | // Reset the array information. | ||||
9479 | Info.clearArrayInfo(); | ||||
9480 | Info.NumberOfPtrs = CombinedInfo.BasePointers.size(); | ||||
9481 | |||||
9482 | if (Info.NumberOfPtrs) { | ||||
9483 | // Detect if we have any capture size requiring runtime evaluation of the | ||||
9484 | // size so that a constant array could be eventually used. | ||||
9485 | bool hasRuntimeEvaluationCaptureSize = false; | ||||
9486 | for (llvm::Value *S : CombinedInfo.Sizes) | ||||
9487 | if (!isa<llvm::Constant>(S)) { | ||||
9488 | hasRuntimeEvaluationCaptureSize = true; | ||||
9489 | break; | ||||
9490 | } | ||||
9491 | |||||
9492 | llvm::APInt PointerNumAP(32, Info.NumberOfPtrs, /*isSigned=*/true); | ||||
9493 | QualType PointerArrayType = Ctx.getConstantArrayType( | ||||
9494 | Ctx.VoidPtrTy, PointerNumAP, nullptr, ArrayType::Normal, | ||||
9495 | /*IndexTypeQuals=*/0); | ||||
9496 | |||||
9497 | Info.BasePointersArray = | ||||
9498 | CGF.CreateMemTemp(PointerArrayType, ".offload_baseptrs").getPointer(); | ||||
9499 | Info.PointersArray = | ||||
9500 | CGF.CreateMemTemp(PointerArrayType, ".offload_ptrs").getPointer(); | ||||
9501 | Address MappersArray = | ||||
9502 | CGF.CreateMemTemp(PointerArrayType, ".offload_mappers"); | ||||
9503 | Info.MappersArray = MappersArray.getPointer(); | ||||
9504 | |||||
9505 | // If we don't have any VLA types or other types that require runtime | ||||
9506 | // evaluation, we can use a constant array for the map sizes, otherwise we | ||||
9507 | // need to fill up the arrays as we do for the pointers. | ||||
9508 | QualType Int64Ty = | ||||
9509 | Ctx.getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/1); | ||||
9510 | if (hasRuntimeEvaluationCaptureSize) { | ||||
9511 | QualType SizeArrayType = Ctx.getConstantArrayType( | ||||
9512 | Int64Ty, PointerNumAP, nullptr, ArrayType::Normal, | ||||
9513 | /*IndexTypeQuals=*/0); | ||||
9514 | Info.SizesArray = | ||||
9515 | CGF.CreateMemTemp(SizeArrayType, ".offload_sizes").getPointer(); | ||||
9516 | } else { | ||||
9517 | // We expect all the sizes to be constant, so we collect them to create | ||||
9518 | // a constant array. | ||||
9519 | SmallVector<llvm::Constant *, 16> ConstSizes; | ||||
9520 | for (unsigned I = 0, E = CombinedInfo.Sizes.size(); I < E; ++I) { | ||||
9521 | if (IsNonContiguous && | ||||
9522 | (CombinedInfo.Types[I] & MappableExprsHandler::OMP_MAP_NON_CONTIG)) { | ||||
9523 | ConstSizes.push_back(llvm::ConstantInt::get( | ||||
9524 | CGF.Int64Ty, CombinedInfo.NonContigInfo.Dims[I])); | ||||
9525 | } else { | ||||
9526 | ConstSizes.push_back(cast<llvm::Constant>(CombinedInfo.Sizes[I])); | ||||
9527 | } | ||||
9528 | } | ||||
9529 | |||||
9530 | auto *SizesArrayInit = llvm::ConstantArray::get( | ||||
9531 | llvm::ArrayType::get(CGM.Int64Ty, ConstSizes.size()), ConstSizes); | ||||
9532 | std::string Name = CGM.getOpenMPRuntime().getName({"offload_sizes"}); | ||||
9533 | auto *SizesArrayGbl = new llvm::GlobalVariable( | ||||
9534 | CGM.getModule(), SizesArrayInit->getType(), | ||||
9535 | /*isConstant=*/true, llvm::GlobalValue::PrivateLinkage, | ||||
9536 | SizesArrayInit, Name); | ||||
9537 | SizesArrayGbl->setUnnamedAddr(llvm::GlobalValue::UnnamedAddr::Global); | ||||
9538 | Info.SizesArray = SizesArrayGbl; | ||||
9539 | } | ||||
9540 | |||||
9541 | // The map types are always constant so we don't need to generate code to | ||||
9542 | // fill arrays. Instead, we create an array constant. | ||||
9543 | SmallVector<uint64_t, 4> Mapping(CombinedInfo.Types.size(), 0); | ||||
9544 | llvm::copy(CombinedInfo.Types, Mapping.begin()); | ||||
9545 | std::string MaptypesName = | ||||
9546 | CGM.getOpenMPRuntime().getName({"offload_maptypes"}); | ||||
9547 | auto *MapTypesArrayGbl = | ||||
9548 | OMPBuilder.createOffloadMaptypes(Mapping, MaptypesName); | ||||
9549 | Info.MapTypesArray = MapTypesArrayGbl; | ||||
9550 | |||||
9551 | // The information types are only built if there is debug information | ||||
9552 | // requested. | ||||
9553 | if (CGM.getCodeGenOpts().getDebugInfo() == codegenoptions::NoDebugInfo) { | ||||
9554 | Info.MapNamesArray = llvm::Constant::getNullValue( | ||||
9555 | llvm::Type::getInt8Ty(CGF.Builder.getContext())->getPointerTo()); | ||||
9556 | } else { | ||||
9557 | auto fillInfoMap = [&](MappableExprsHandler::MappingExprInfo &MapExpr) { | ||||
9558 | return emitMappingInformation(CGF, OMPBuilder, MapExpr); | ||||
9559 | }; | ||||
9560 | SmallVector<llvm::Constant *, 4> InfoMap(CombinedInfo.Exprs.size()); | ||||
9561 | llvm::transform(CombinedInfo.Exprs, InfoMap.begin(), fillInfoMap); | ||||
9562 | std::string MapnamesName = | ||||
9563 | CGM.getOpenMPRuntime().getName({"offload_mapnames"}); | ||||
9564 | auto *MapNamesArrayGbl = | ||||
9565 | OMPBuilder.createOffloadMapnames(InfoMap, MapnamesName); | ||||
9566 | Info.MapNamesArray = MapNamesArrayGbl; | ||||
9567 | } | ||||
9568 | |||||
9569 | // If there's a present map type modifier, it must not be applied to the end | ||||
9570 | // of a region, so generate a separate map type array in that case. | ||||
9571 | if (Info.separateBeginEndCalls()) { | ||||
9572 | bool EndMapTypesDiffer = false; | ||||
9573 | for (uint64_t &Type : Mapping) { | ||||
9574 | if (Type & MappableExprsHandler::OMP_MAP_PRESENT) { | ||||
9575 | Type &= ~MappableExprsHandler::OMP_MAP_PRESENT; | ||||
9576 | EndMapTypesDiffer = true; | ||||
9577 | } | ||||
9578 | } | ||||
9579 | if (EndMapTypesDiffer) { | ||||
9580 | MapTypesArrayGbl = | ||||
9581 | OMPBuilder.createOffloadMaptypes(Mapping, MaptypesName); | ||||
9582 | Info.MapTypesArrayEnd = MapTypesArrayGbl; | ||||
9583 | } | ||||
9584 | } | ||||
9585 | |||||
9586 | for (unsigned I = 0; I < Info.NumberOfPtrs; ++I) { | ||||
9587 | llvm::Value *BPVal = *CombinedInfo.BasePointers[I]; | ||||
9588 | llvm::Value *BP = CGF.Builder.CreateConstInBoundsGEP2_32( | ||||
9589 | llvm::ArrayType::get(CGM.VoidPtrTy, Info.NumberOfPtrs), | ||||
9590 | Info.BasePointersArray, 0, I); | ||||
9591 | BP = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
9592 | BP, BPVal->getType()->getPointerTo(/*AddrSpace=*/0)); | ||||
9593 | Address BPAddr(BP, Ctx.getTypeAlignInChars(Ctx.VoidPtrTy)); | ||||
9594 | CGF.Builder.CreateStore(BPVal, BPAddr); | ||||
9595 | |||||
9596 | if (Info.requiresDevicePointerInfo()) | ||||
9597 | if (const ValueDecl *DevVD = | ||||
9598 | CombinedInfo.BasePointers[I].getDevicePtrDecl()) | ||||
9599 | Info.CaptureDeviceAddrMap.try_emplace(DevVD, BPAddr); | ||||
9600 | |||||
9601 | llvm::Value *PVal = CombinedInfo.Pointers[I]; | ||||
9602 | llvm::Value *P = CGF.Builder.CreateConstInBoundsGEP2_32( | ||||
9603 | llvm::ArrayType::get(CGM.VoidPtrTy, Info.NumberOfPtrs), | ||||
9604 | Info.PointersArray, 0, I); | ||||
9605 | P = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
9606 | P, PVal->getType()->getPointerTo(/*AddrSpace=*/0)); | ||||
9607 | Address PAddr(P, Ctx.getTypeAlignInChars(Ctx.VoidPtrTy)); | ||||
9608 | CGF.Builder.CreateStore(PVal, PAddr); | ||||
9609 | |||||
9610 | if (hasRuntimeEvaluationCaptureSize) { | ||||
9611 | llvm::Value *S = CGF.Builder.CreateConstInBoundsGEP2_32( | ||||
9612 | llvm::ArrayType::get(CGM.Int64Ty, Info.NumberOfPtrs), | ||||
9613 | Info.SizesArray, | ||||
9614 | /*Idx0=*/0, | ||||
9615 | /*Idx1=*/I); | ||||
9616 | Address SAddr(S, Ctx.getTypeAlignInChars(Int64Ty)); | ||||
9617 | CGF.Builder.CreateStore(CGF.Builder.CreateIntCast(CombinedInfo.Sizes[I], | ||||
9618 | CGM.Int64Ty, | ||||
9619 | /*isSigned=*/true), | ||||
9620 | SAddr); | ||||
9621 | } | ||||
9622 | |||||
9623 | // Fill up the mapper array. | ||||
9624 | llvm::Value *MFunc = llvm::ConstantPointerNull::get(CGM.VoidPtrTy); | ||||
9625 | if (CombinedInfo.Mappers[I]) { | ||||
9626 | MFunc = CGM.getOpenMPRuntime().getOrCreateUserDefinedMapperFunc( | ||||
9627 | cast<OMPDeclareMapperDecl>(CombinedInfo.Mappers[I])); | ||||
9628 | MFunc = CGF.Builder.CreatePointerCast(MFunc, CGM.VoidPtrTy); | ||||
9629 | Info.HasMapper = true; | ||||
9630 | } | ||||
9631 | Address MAddr = CGF.Builder.CreateConstArrayGEP(MappersArray, I); | ||||
9632 | CGF.Builder.CreateStore(MFunc, MAddr); | ||||
9633 | } | ||||
9634 | } | ||||
9635 | |||||
9636 | if (!IsNonContiguous || CombinedInfo.NonContigInfo.Offsets.empty() || | ||||
9637 | Info.NumberOfPtrs == 0) | ||||
9638 | return; | ||||
9639 | |||||
9640 | emitNonContiguousDescriptor(CGF, CombinedInfo, Info); | ||||
9641 | } | ||||
9642 | |||||
9643 | namespace { | ||||
9644 | /// Additional arguments for emitOffloadingArraysArgument function. | ||||
9645 | struct ArgumentsOptions { | ||||
9646 | bool ForEndCall = false; | ||||
9647 | ArgumentsOptions() = default; | ||||
9648 | ArgumentsOptions(bool ForEndCall) : ForEndCall(ForEndCall) {} | ||||
9649 | }; | ||||
9650 | } // namespace | ||||
9651 | |||||
9652 | /// Emit the arguments to be passed to the runtime library based on the | ||||
9653 | /// arrays of base pointers, pointers, sizes, map types, and mappers. If | ||||
9654 | /// ForEndCall, emit map types to be passed for the end of the region instead of | ||||
9655 | /// the beginning. | ||||
9656 | static void emitOffloadingArraysArgument( | ||||
9657 | CodeGenFunction &CGF, llvm::Value *&BasePointersArrayArg, | ||||
9658 | llvm::Value *&PointersArrayArg, llvm::Value *&SizesArrayArg, | ||||
9659 | llvm::Value *&MapTypesArrayArg, llvm::Value *&MapNamesArrayArg, | ||||
9660 | llvm::Value *&MappersArrayArg, CGOpenMPRuntime::TargetDataInfo &Info, | ||||
9661 | const ArgumentsOptions &Options = ArgumentsOptions()) { | ||||
9662 | assert((!Options.ForEndCall || Info.separateBeginEndCalls()) &&((void)0) | ||||
9663 | "expected region end call to runtime only when end call is separate")((void)0); | ||||
9664 | CodeGenModule &CGM = CGF.CGM; | ||||
9665 | if (Info.NumberOfPtrs) { | ||||
9666 | BasePointersArrayArg = CGF.Builder.CreateConstInBoundsGEP2_32( | ||||
9667 | llvm::ArrayType::get(CGM.VoidPtrTy, Info.NumberOfPtrs), | ||||
9668 | Info.BasePointersArray, | ||||
9669 | /*Idx0=*/0, /*Idx1=*/0); | ||||
9670 | PointersArrayArg = CGF.Builder.CreateConstInBoundsGEP2_32( | ||||
9671 | llvm::ArrayType::get(CGM.VoidPtrTy, Info.NumberOfPtrs), | ||||
9672 | Info.PointersArray, | ||||
9673 | /*Idx0=*/0, | ||||
9674 | /*Idx1=*/0); | ||||
9675 | SizesArrayArg = CGF.Builder.CreateConstInBoundsGEP2_32( | ||||
9676 | llvm::ArrayType::get(CGM.Int64Ty, Info.NumberOfPtrs), Info.SizesArray, | ||||
9677 | /*Idx0=*/0, /*Idx1=*/0); | ||||
9678 | MapTypesArrayArg = CGF.Builder.CreateConstInBoundsGEP2_32( | ||||
9679 | llvm::ArrayType::get(CGM.Int64Ty, Info.NumberOfPtrs), | ||||
9680 | Options.ForEndCall && Info.MapTypesArrayEnd ? Info.MapTypesArrayEnd | ||||
9681 | : Info.MapTypesArray, | ||||
9682 | /*Idx0=*/0, | ||||
9683 | /*Idx1=*/0); | ||||
9684 | |||||
9685 | // Only emit the mapper information arrays if debug information is | ||||
9686 | // requested. | ||||
9687 | if (CGF.CGM.getCodeGenOpts().getDebugInfo() == codegenoptions::NoDebugInfo) | ||||
9688 | MapNamesArrayArg = llvm::ConstantPointerNull::get(CGM.VoidPtrPtrTy); | ||||
9689 | else | ||||
9690 | MapNamesArrayArg = CGF.Builder.CreateConstInBoundsGEP2_32( | ||||
9691 | llvm::ArrayType::get(CGM.VoidPtrTy, Info.NumberOfPtrs), | ||||
9692 | Info.MapNamesArray, | ||||
9693 | /*Idx0=*/0, | ||||
9694 | /*Idx1=*/0); | ||||
9695 | // If there is no user-defined mapper, set the mapper array to nullptr to | ||||
9696 | // avoid an unnecessary data privatization | ||||
9697 | if (!Info.HasMapper) | ||||
9698 | MappersArrayArg = llvm::ConstantPointerNull::get(CGM.VoidPtrPtrTy); | ||||
9699 | else | ||||
9700 | MappersArrayArg = | ||||
9701 | CGF.Builder.CreatePointerCast(Info.MappersArray, CGM.VoidPtrPtrTy); | ||||
9702 | } else { | ||||
9703 | BasePointersArrayArg = llvm::ConstantPointerNull::get(CGM.VoidPtrPtrTy); | ||||
9704 | PointersArrayArg = llvm::ConstantPointerNull::get(CGM.VoidPtrPtrTy); | ||||
9705 | SizesArrayArg = llvm::ConstantPointerNull::get(CGM.Int64Ty->getPointerTo()); | ||||
9706 | MapTypesArrayArg = | ||||
9707 | llvm::ConstantPointerNull::get(CGM.Int64Ty->getPointerTo()); | ||||
9708 | MapNamesArrayArg = llvm::ConstantPointerNull::get(CGM.VoidPtrPtrTy); | ||||
9709 | MappersArrayArg = llvm::ConstantPointerNull::get(CGM.VoidPtrPtrTy); | ||||
9710 | } | ||||
9711 | } | ||||
9712 | |||||
9713 | /// Check for inner distribute directive. | ||||
9714 | static const OMPExecutableDirective * | ||||
9715 | getNestedDistributeDirective(ASTContext &Ctx, const OMPExecutableDirective &D) { | ||||
9716 | const auto *CS = D.getInnermostCapturedStmt(); | ||||
9717 | const auto *Body = | ||||
9718 | CS->getCapturedStmt()->IgnoreContainers(/*IgnoreCaptured=*/true); | ||||
9719 | const Stmt *ChildStmt = | ||||
9720 | CGOpenMPSIMDRuntime::getSingleCompoundChild(Ctx, Body); | ||||
9721 | |||||
9722 | if (const auto *NestedDir = | ||||
9723 | dyn_cast_or_null<OMPExecutableDirective>(ChildStmt)) { | ||||
9724 | OpenMPDirectiveKind DKind = NestedDir->getDirectiveKind(); | ||||
9725 | switch (D.getDirectiveKind()) { | ||||
9726 | case OMPD_target: | ||||
9727 | if (isOpenMPDistributeDirective(DKind)) | ||||
9728 | return NestedDir; | ||||
9729 | if (DKind == OMPD_teams) { | ||||
9730 | Body = NestedDir->getInnermostCapturedStmt()->IgnoreContainers( | ||||
9731 | /*IgnoreCaptured=*/true); | ||||
9732 | if (!Body) | ||||
9733 | return nullptr; | ||||
9734 | ChildStmt = CGOpenMPSIMDRuntime::getSingleCompoundChild(Ctx, Body); | ||||
9735 | if (const auto *NND = | ||||
9736 | dyn_cast_or_null<OMPExecutableDirective>(ChildStmt)) { | ||||
9737 | DKind = NND->getDirectiveKind(); | ||||
9738 | if (isOpenMPDistributeDirective(DKind)) | ||||
9739 | return NND; | ||||
9740 | } | ||||
9741 | } | ||||
9742 | return nullptr; | ||||
9743 | case OMPD_target_teams: | ||||
9744 | if (isOpenMPDistributeDirective(DKind)) | ||||
9745 | return NestedDir; | ||||
9746 | return nullptr; | ||||
9747 | case OMPD_target_parallel: | ||||
9748 | case OMPD_target_simd: | ||||
9749 | case OMPD_target_parallel_for: | ||||
9750 | case OMPD_target_parallel_for_simd: | ||||
9751 | return nullptr; | ||||
9752 | case OMPD_target_teams_distribute: | ||||
9753 | case OMPD_target_teams_distribute_simd: | ||||
9754 | case OMPD_target_teams_distribute_parallel_for: | ||||
9755 | case OMPD_target_teams_distribute_parallel_for_simd: | ||||
9756 | case OMPD_parallel: | ||||
9757 | case OMPD_for: | ||||
9758 | case OMPD_parallel_for: | ||||
9759 | case OMPD_parallel_master: | ||||
9760 | case OMPD_parallel_sections: | ||||
9761 | case OMPD_for_simd: | ||||
9762 | case OMPD_parallel_for_simd: | ||||
9763 | case OMPD_cancel: | ||||
9764 | case OMPD_cancellation_point: | ||||
9765 | case OMPD_ordered: | ||||
9766 | case OMPD_threadprivate: | ||||
9767 | case OMPD_allocate: | ||||
9768 | case OMPD_task: | ||||
9769 | case OMPD_simd: | ||||
9770 | case OMPD_tile: | ||||
9771 | case OMPD_unroll: | ||||
9772 | case OMPD_sections: | ||||
9773 | case OMPD_section: | ||||
9774 | case OMPD_single: | ||||
9775 | case OMPD_master: | ||||
9776 | case OMPD_critical: | ||||
9777 | case OMPD_taskyield: | ||||
9778 | case OMPD_barrier: | ||||
9779 | case OMPD_taskwait: | ||||
9780 | case OMPD_taskgroup: | ||||
9781 | case OMPD_atomic: | ||||
9782 | case OMPD_flush: | ||||
9783 | case OMPD_depobj: | ||||
9784 | case OMPD_scan: | ||||
9785 | case OMPD_teams: | ||||
9786 | case OMPD_target_data: | ||||
9787 | case OMPD_target_exit_data: | ||||
9788 | case OMPD_target_enter_data: | ||||
9789 | case OMPD_distribute: | ||||
9790 | case OMPD_distribute_simd: | ||||
9791 | case OMPD_distribute_parallel_for: | ||||
9792 | case OMPD_distribute_parallel_for_simd: | ||||
9793 | case OMPD_teams_distribute: | ||||
9794 | case OMPD_teams_distribute_simd: | ||||
9795 | case OMPD_teams_distribute_parallel_for: | ||||
9796 | case OMPD_teams_distribute_parallel_for_simd: | ||||
9797 | case OMPD_target_update: | ||||
9798 | case OMPD_declare_simd: | ||||
9799 | case OMPD_declare_variant: | ||||
9800 | case OMPD_begin_declare_variant: | ||||
9801 | case OMPD_end_declare_variant: | ||||
9802 | case OMPD_declare_target: | ||||
9803 | case OMPD_end_declare_target: | ||||
9804 | case OMPD_declare_reduction: | ||||
9805 | case OMPD_declare_mapper: | ||||
9806 | case OMPD_taskloop: | ||||
9807 | case OMPD_taskloop_simd: | ||||
9808 | case OMPD_master_taskloop: | ||||
9809 | case OMPD_master_taskloop_simd: | ||||
9810 | case OMPD_parallel_master_taskloop: | ||||
9811 | case OMPD_parallel_master_taskloop_simd: | ||||
9812 | case OMPD_requires: | ||||
9813 | case OMPD_unknown: | ||||
9814 | default: | ||||
9815 | llvm_unreachable("Unexpected directive.")__builtin_unreachable(); | ||||
9816 | } | ||||
9817 | } | ||||
9818 | |||||
9819 | return nullptr; | ||||
9820 | } | ||||
9821 | |||||
9822 | /// Emit the user-defined mapper function. The code generation follows the | ||||
9823 | /// pattern in the example below. | ||||
9824 | /// \code | ||||
9825 | /// void .omp_mapper.<type_name>.<mapper_id>.(void *rt_mapper_handle, | ||||
9826 | /// void *base, void *begin, | ||||
9827 | /// int64_t size, int64_t type, | ||||
9828 | /// void *name = nullptr) { | ||||
9829 | /// // Allocate space for an array section first or add a base/begin for | ||||
9830 | /// // pointer dereference. | ||||
9831 | /// if ((size > 1 || (base != begin && maptype.IsPtrAndObj)) && | ||||
9832 | /// !maptype.IsDelete) | ||||
9833 | /// __tgt_push_mapper_component(rt_mapper_handle, base, begin, | ||||
9834 | /// size*sizeof(Ty), clearToFromMember(type)); | ||||
9835 | /// // Map members. | ||||
9836 | /// for (unsigned i = 0; i < size; i++) { | ||||
9837 | /// // For each component specified by this mapper: | ||||
9838 | /// for (auto c : begin[i]->all_components) { | ||||
9839 | /// if (c.hasMapper()) | ||||
9840 | /// (*c.Mapper())(rt_mapper_handle, c.arg_base, c.arg_begin, c.arg_size, | ||||
9841 | /// c.arg_type, c.arg_name); | ||||
9842 | /// else | ||||
9843 | /// __tgt_push_mapper_component(rt_mapper_handle, c.arg_base, | ||||
9844 | /// c.arg_begin, c.arg_size, c.arg_type, | ||||
9845 | /// c.arg_name); | ||||
9846 | /// } | ||||
9847 | /// } | ||||
9848 | /// // Delete the array section. | ||||
9849 | /// if (size > 1 && maptype.IsDelete) | ||||
9850 | /// __tgt_push_mapper_component(rt_mapper_handle, base, begin, | ||||
9851 | /// size*sizeof(Ty), clearToFromMember(type)); | ||||
9852 | /// } | ||||
9853 | /// \endcode | ||||
9854 | void CGOpenMPRuntime::emitUserDefinedMapper(const OMPDeclareMapperDecl *D, | ||||
9855 | CodeGenFunction *CGF) { | ||||
9856 | if (UDMMap.count(D) > 0) | ||||
9857 | return; | ||||
9858 | ASTContext &C = CGM.getContext(); | ||||
9859 | QualType Ty = D->getType(); | ||||
9860 | QualType PtrTy = C.getPointerType(Ty).withRestrict(); | ||||
9861 | QualType Int64Ty = C.getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/true); | ||||
9862 | auto *MapperVarDecl = | ||||
9863 | cast<VarDecl>(cast<DeclRefExpr>(D->getMapperVarRef())->getDecl()); | ||||
9864 | SourceLocation Loc = D->getLocation(); | ||||
9865 | CharUnits ElementSize = C.getTypeSizeInChars(Ty); | ||||
9866 | |||||
9867 | // Prepare mapper function arguments and attributes. | ||||
9868 | ImplicitParamDecl HandleArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, | ||||
9869 | C.VoidPtrTy, ImplicitParamDecl::Other); | ||||
9870 | ImplicitParamDecl BaseArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, C.VoidPtrTy, | ||||
9871 | ImplicitParamDecl::Other); | ||||
9872 | ImplicitParamDecl BeginArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, | ||||
9873 | C.VoidPtrTy, ImplicitParamDecl::Other); | ||||
9874 | ImplicitParamDecl SizeArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, Int64Ty, | ||||
9875 | ImplicitParamDecl::Other); | ||||
9876 | ImplicitParamDecl TypeArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, Int64Ty, | ||||
9877 | ImplicitParamDecl::Other); | ||||
9878 | ImplicitParamDecl NameArg(C, /*DC=*/nullptr, Loc, /*Id=*/nullptr, C.VoidPtrTy, | ||||
9879 | ImplicitParamDecl::Other); | ||||
9880 | FunctionArgList Args; | ||||
9881 | Args.push_back(&HandleArg); | ||||
9882 | Args.push_back(&BaseArg); | ||||
9883 | Args.push_back(&BeginArg); | ||||
9884 | Args.push_back(&SizeArg); | ||||
9885 | Args.push_back(&TypeArg); | ||||
9886 | Args.push_back(&NameArg); | ||||
9887 | const CGFunctionInfo &FnInfo = | ||||
9888 | CGM.getTypes().arrangeBuiltinFunctionDeclaration(C.VoidTy, Args); | ||||
9889 | llvm::FunctionType *FnTy = CGM.getTypes().GetFunctionType(FnInfo); | ||||
9890 | SmallString<64> TyStr; | ||||
9891 | llvm::raw_svector_ostream Out(TyStr); | ||||
9892 | CGM.getCXXABI().getMangleContext().mangleTypeName(Ty, Out); | ||||
9893 | std::string Name = getName({"omp_mapper", TyStr, D->getName()}); | ||||
9894 | auto *Fn = llvm::Function::Create(FnTy, llvm::GlobalValue::InternalLinkage, | ||||
9895 | Name, &CGM.getModule()); | ||||
9896 | CGM.SetInternalFunctionAttributes(GlobalDecl(), Fn, FnInfo); | ||||
9897 | Fn->removeFnAttr(llvm::Attribute::OptimizeNone); | ||||
9898 | // Start the mapper function code generation. | ||||
9899 | CodeGenFunction MapperCGF(CGM); | ||||
9900 | MapperCGF.StartFunction(GlobalDecl(), C.VoidTy, Fn, FnInfo, Args, Loc, Loc); | ||||
9901 | // Compute the starting and end addresses of array elements. | ||||
9902 | llvm::Value *Size = MapperCGF.EmitLoadOfScalar( | ||||
9903 | MapperCGF.GetAddrOfLocalVar(&SizeArg), /*Volatile=*/false, | ||||
9904 | C.getPointerType(Int64Ty), Loc); | ||||
9905 | // Prepare common arguments for array initiation and deletion. | ||||
9906 | llvm::Value *Handle = MapperCGF.EmitLoadOfScalar( | ||||
9907 | MapperCGF.GetAddrOfLocalVar(&HandleArg), | ||||
9908 | /*Volatile=*/false, C.getPointerType(C.VoidPtrTy), Loc); | ||||
9909 | llvm::Value *BaseIn = MapperCGF.EmitLoadOfScalar( | ||||
9910 | MapperCGF.GetAddrOfLocalVar(&BaseArg), | ||||
9911 | /*Volatile=*/false, C.getPointerType(C.VoidPtrTy), Loc); | ||||
9912 | llvm::Value *BeginIn = MapperCGF.EmitLoadOfScalar( | ||||
9913 | MapperCGF.GetAddrOfLocalVar(&BeginArg), | ||||
9914 | /*Volatile=*/false, C.getPointerType(C.VoidPtrTy), Loc); | ||||
9915 | // Convert the size in bytes into the number of array elements. | ||||
9916 | Size = MapperCGF.Builder.CreateExactUDiv( | ||||
9917 | Size, MapperCGF.Builder.getInt64(ElementSize.getQuantity())); | ||||
9918 | llvm::Value *PtrBegin = MapperCGF.Builder.CreateBitCast( | ||||
9919 | BeginIn, CGM.getTypes().ConvertTypeForMem(PtrTy)); | ||||
9920 | llvm::Value *PtrEnd = MapperCGF.Builder.CreateGEP( | ||||
9921 | PtrBegin->getType()->getPointerElementType(), PtrBegin, Size); | ||||
9922 | llvm::Value *MapType = MapperCGF.EmitLoadOfScalar( | ||||
9923 | MapperCGF.GetAddrOfLocalVar(&TypeArg), /*Volatile=*/false, | ||||
9924 | C.getPointerType(Int64Ty), Loc); | ||||
9925 | llvm::Value *MapName = MapperCGF.EmitLoadOfScalar( | ||||
9926 | MapperCGF.GetAddrOfLocalVar(&NameArg), | ||||
9927 | /*Volatile=*/false, C.getPointerType(C.VoidPtrTy), Loc); | ||||
9928 | |||||
9929 | // Emit array initiation if this is an array section and \p MapType indicates | ||||
9930 | // that memory allocation is required. | ||||
9931 | llvm::BasicBlock *HeadBB = MapperCGF.createBasicBlock("omp.arraymap.head"); | ||||
9932 | emitUDMapperArrayInitOrDel(MapperCGF, Handle, BaseIn, BeginIn, Size, MapType, | ||||
9933 | MapName, ElementSize, HeadBB, /*IsInit=*/true); | ||||
9934 | |||||
9935 | // Emit a for loop to iterate through SizeArg of elements and map all of them. | ||||
9936 | |||||
9937 | // Emit the loop header block. | ||||
9938 | MapperCGF.EmitBlock(HeadBB); | ||||
9939 | llvm::BasicBlock *BodyBB = MapperCGF.createBasicBlock("omp.arraymap.body"); | ||||
9940 | llvm::BasicBlock *DoneBB = MapperCGF.createBasicBlock("omp.done"); | ||||
9941 | // Evaluate whether the initial condition is satisfied. | ||||
9942 | llvm::Value *IsEmpty = | ||||
9943 | MapperCGF.Builder.CreateICmpEQ(PtrBegin, PtrEnd, "omp.arraymap.isempty"); | ||||
9944 | MapperCGF.Builder.CreateCondBr(IsEmpty, DoneBB, BodyBB); | ||||
9945 | llvm::BasicBlock *EntryBB = MapperCGF.Builder.GetInsertBlock(); | ||||
9946 | |||||
9947 | // Emit the loop body block. | ||||
9948 | MapperCGF.EmitBlock(BodyBB); | ||||
9949 | llvm::BasicBlock *LastBB = BodyBB; | ||||
9950 | llvm::PHINode *PtrPHI = MapperCGF.Builder.CreatePHI( | ||||
9951 | PtrBegin->getType(), 2, "omp.arraymap.ptrcurrent"); | ||||
9952 | PtrPHI->addIncoming(PtrBegin, EntryBB); | ||||
9953 | Address PtrCurrent = | ||||
9954 | Address(PtrPHI, MapperCGF.GetAddrOfLocalVar(&BeginArg) | ||||
9955 | .getAlignment() | ||||
9956 | .alignmentOfArrayElement(ElementSize)); | ||||
9957 | // Privatize the declared variable of mapper to be the current array element. | ||||
9958 | CodeGenFunction::OMPPrivateScope Scope(MapperCGF); | ||||
9959 | Scope.addPrivate(MapperVarDecl, [PtrCurrent]() { return PtrCurrent; }); | ||||
9960 | (void)Scope.Privatize(); | ||||
9961 | |||||
9962 | // Get map clause information. Fill up the arrays with all mapped variables. | ||||
9963 | MappableExprsHandler::MapCombinedInfoTy Info; | ||||
9964 | MappableExprsHandler MEHandler(*D, MapperCGF); | ||||
9965 | MEHandler.generateAllInfoForMapper(Info); | ||||
9966 | |||||
9967 | // Call the runtime API __tgt_mapper_num_components to get the number of | ||||
9968 | // pre-existing components. | ||||
9969 | llvm::Value *OffloadingArgs[] = {Handle}; | ||||
9970 | llvm::Value *PreviousSize = MapperCGF.EmitRuntimeCall( | ||||
9971 | OMPBuilder.getOrCreateRuntimeFunction(CGM.getModule(), | ||||
9972 | OMPRTL___tgt_mapper_num_components), | ||||
9973 | OffloadingArgs); | ||||
9974 | llvm::Value *ShiftedPreviousSize = MapperCGF.Builder.CreateShl( | ||||
9975 | PreviousSize, | ||||
9976 | MapperCGF.Builder.getInt64(MappableExprsHandler::getFlagMemberOffset())); | ||||
9977 | |||||
9978 | // Fill up the runtime mapper handle for all components. | ||||
9979 | for (unsigned I = 0; I < Info.BasePointers.size(); ++I) { | ||||
9980 | llvm::Value *CurBaseArg = MapperCGF.Builder.CreateBitCast( | ||||
9981 | *Info.BasePointers[I], CGM.getTypes().ConvertTypeForMem(C.VoidPtrTy)); | ||||
9982 | llvm::Value *CurBeginArg = MapperCGF.Builder.CreateBitCast( | ||||
9983 | Info.Pointers[I], CGM.getTypes().ConvertTypeForMem(C.VoidPtrTy)); | ||||
9984 | llvm::Value *CurSizeArg = Info.Sizes[I]; | ||||
9985 | llvm::Value *CurNameArg = | ||||
9986 | (CGM.getCodeGenOpts().getDebugInfo() == codegenoptions::NoDebugInfo) | ||||
9987 | ? llvm::ConstantPointerNull::get(CGM.VoidPtrTy) | ||||
9988 | : emitMappingInformation(MapperCGF, OMPBuilder, Info.Exprs[I]); | ||||
9989 | |||||
9990 | // Extract the MEMBER_OF field from the map type. | ||||
9991 | llvm::Value *OriMapType = MapperCGF.Builder.getInt64(Info.Types[I]); | ||||
9992 | llvm::Value *MemberMapType = | ||||
9993 | MapperCGF.Builder.CreateNUWAdd(OriMapType, ShiftedPreviousSize); | ||||
9994 | |||||
9995 | // Combine the map type inherited from user-defined mapper with that | ||||
9996 | // specified in the program. According to the OMP_MAP_TO and OMP_MAP_FROM | ||||
9997 | // bits of the \a MapType, which is the input argument of the mapper | ||||
9998 | // function, the following code will set the OMP_MAP_TO and OMP_MAP_FROM | ||||
9999 | // bits of MemberMapType. | ||||
10000 | // [OpenMP 5.0], 1.2.6. map-type decay. | ||||
10001 | // | alloc | to | from | tofrom | release | delete | ||||
10002 | // ---------------------------------------------------------- | ||||
10003 | // alloc | alloc | alloc | alloc | alloc | release | delete | ||||
10004 | // to | alloc | to | alloc | to | release | delete | ||||
10005 | // from | alloc | alloc | from | from | release | delete | ||||
10006 | // tofrom | alloc | to | from | tofrom | release | delete | ||||
10007 | llvm::Value *LeftToFrom = MapperCGF.Builder.CreateAnd( | ||||
10008 | MapType, | ||||
10009 | MapperCGF.Builder.getInt64(MappableExprsHandler::OMP_MAP_TO | | ||||
10010 | MappableExprsHandler::OMP_MAP_FROM)); | ||||
10011 | llvm::BasicBlock *AllocBB = MapperCGF.createBasicBlock("omp.type.alloc"); | ||||
10012 | llvm::BasicBlock *AllocElseBB = | ||||
10013 | MapperCGF.createBasicBlock("omp.type.alloc.else"); | ||||
10014 | llvm::BasicBlock *ToBB = MapperCGF.createBasicBlock("omp.type.to"); | ||||
10015 | llvm::BasicBlock *ToElseBB = MapperCGF.createBasicBlock("omp.type.to.else"); | ||||
10016 | llvm::BasicBlock *FromBB = MapperCGF.createBasicBlock("omp.type.from"); | ||||
10017 | llvm::BasicBlock *EndBB = MapperCGF.createBasicBlock("omp.type.end"); | ||||
10018 | llvm::Value *IsAlloc = MapperCGF.Builder.CreateIsNull(LeftToFrom); | ||||
10019 | MapperCGF.Builder.CreateCondBr(IsAlloc, AllocBB, AllocElseBB); | ||||
10020 | // In case of alloc, clear OMP_MAP_TO and OMP_MAP_FROM. | ||||
10021 | MapperCGF.EmitBlock(AllocBB); | ||||
10022 | llvm::Value *AllocMapType = MapperCGF.Builder.CreateAnd( | ||||
10023 | MemberMapType, | ||||
10024 | MapperCGF.Builder.getInt64(~(MappableExprsHandler::OMP_MAP_TO | | ||||
10025 | MappableExprsHandler::OMP_MAP_FROM))); | ||||
10026 | MapperCGF.Builder.CreateBr(EndBB); | ||||
10027 | MapperCGF.EmitBlock(AllocElseBB); | ||||
10028 | llvm::Value *IsTo = MapperCGF.Builder.CreateICmpEQ( | ||||
10029 | LeftToFrom, | ||||
10030 | MapperCGF.Builder.getInt64(MappableExprsHandler::OMP_MAP_TO)); | ||||
10031 | MapperCGF.Builder.CreateCondBr(IsTo, ToBB, ToElseBB); | ||||
10032 | // In case of to, clear OMP_MAP_FROM. | ||||
10033 | MapperCGF.EmitBlock(ToBB); | ||||
10034 | llvm::Value *ToMapType = MapperCGF.Builder.CreateAnd( | ||||
10035 | MemberMapType, | ||||
10036 | MapperCGF.Builder.getInt64(~MappableExprsHandler::OMP_MAP_FROM)); | ||||
10037 | MapperCGF.Builder.CreateBr(EndBB); | ||||
10038 | MapperCGF.EmitBlock(ToElseBB); | ||||
10039 | llvm::Value *IsFrom = MapperCGF.Builder.CreateICmpEQ( | ||||
10040 | LeftToFrom, | ||||
10041 | MapperCGF.Builder.getInt64(MappableExprsHandler::OMP_MAP_FROM)); | ||||
10042 | MapperCGF.Builder.CreateCondBr(IsFrom, FromBB, EndBB); | ||||
10043 | // In case of from, clear OMP_MAP_TO. | ||||
10044 | MapperCGF.EmitBlock(FromBB); | ||||
10045 | llvm::Value *FromMapType = MapperCGF.Builder.CreateAnd( | ||||
10046 | MemberMapType, | ||||
10047 | MapperCGF.Builder.getInt64(~MappableExprsHandler::OMP_MAP_TO)); | ||||
10048 | // In case of tofrom, do nothing. | ||||
10049 | MapperCGF.EmitBlock(EndBB); | ||||
10050 | LastBB = EndBB; | ||||
10051 | llvm::PHINode *CurMapType = | ||||
10052 | MapperCGF.Builder.CreatePHI(CGM.Int64Ty, 4, "omp.maptype"); | ||||
10053 | CurMapType->addIncoming(AllocMapType, AllocBB); | ||||
10054 | CurMapType->addIncoming(ToMapType, ToBB); | ||||
10055 | CurMapType->addIncoming(FromMapType, FromBB); | ||||
10056 | CurMapType->addIncoming(MemberMapType, ToElseBB); | ||||
10057 | |||||
10058 | llvm::Value *OffloadingArgs[] = {Handle, CurBaseArg, CurBeginArg, | ||||
10059 | CurSizeArg, CurMapType, CurNameArg}; | ||||
10060 | if (Info.Mappers[I]) { | ||||
10061 | // Call the corresponding mapper function. | ||||
10062 | llvm::Function *MapperFunc = getOrCreateUserDefinedMapperFunc( | ||||
10063 | cast<OMPDeclareMapperDecl>(Info.Mappers[I])); | ||||
10064 | assert(MapperFunc && "Expect a valid mapper function is available.")((void)0); | ||||
10065 | MapperCGF.EmitNounwindRuntimeCall(MapperFunc, OffloadingArgs); | ||||
10066 | } else { | ||||
10067 | // Call the runtime API __tgt_push_mapper_component to fill up the runtime | ||||
10068 | // data structure. | ||||
10069 | MapperCGF.EmitRuntimeCall( | ||||
10070 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
10071 | CGM.getModule(), OMPRTL___tgt_push_mapper_component), | ||||
10072 | OffloadingArgs); | ||||
10073 | } | ||||
10074 | } | ||||
10075 | |||||
10076 | // Update the pointer to point to the next element that needs to be mapped, | ||||
10077 | // and check whether we have mapped all elements. | ||||
10078 | llvm::Type *ElemTy = PtrPHI->getType()->getPointerElementType(); | ||||
10079 | llvm::Value *PtrNext = MapperCGF.Builder.CreateConstGEP1_32( | ||||
10080 | ElemTy, PtrPHI, /*Idx0=*/1, "omp.arraymap.next"); | ||||
10081 | PtrPHI->addIncoming(PtrNext, LastBB); | ||||
10082 | llvm::Value *IsDone = | ||||
10083 | MapperCGF.Builder.CreateICmpEQ(PtrNext, PtrEnd, "omp.arraymap.isdone"); | ||||
10084 | llvm::BasicBlock *ExitBB = MapperCGF.createBasicBlock("omp.arraymap.exit"); | ||||
10085 | MapperCGF.Builder.CreateCondBr(IsDone, ExitBB, BodyBB); | ||||
10086 | |||||
10087 | MapperCGF.EmitBlock(ExitBB); | ||||
10088 | // Emit array deletion if this is an array section and \p MapType indicates | ||||
10089 | // that deletion is required. | ||||
10090 | emitUDMapperArrayInitOrDel(MapperCGF, Handle, BaseIn, BeginIn, Size, MapType, | ||||
10091 | MapName, ElementSize, DoneBB, /*IsInit=*/false); | ||||
10092 | |||||
10093 | // Emit the function exit block. | ||||
10094 | MapperCGF.EmitBlock(DoneBB, /*IsFinished=*/true); | ||||
10095 | MapperCGF.FinishFunction(); | ||||
10096 | UDMMap.try_emplace(D, Fn); | ||||
10097 | if (CGF) { | ||||
10098 | auto &Decls = FunctionUDMMap.FindAndConstruct(CGF->CurFn); | ||||
10099 | Decls.second.push_back(D); | ||||
10100 | } | ||||
10101 | } | ||||
10102 | |||||
10103 | /// Emit the array initialization or deletion portion for user-defined mapper | ||||
10104 | /// code generation. First, it evaluates whether an array section is mapped and | ||||
10105 | /// whether the \a MapType instructs to delete this section. If \a IsInit is | ||||
10106 | /// true, and \a MapType indicates to not delete this array, array | ||||
10107 | /// initialization code is generated. If \a IsInit is false, and \a MapType | ||||
10108 | /// indicates to not this array, array deletion code is generated. | ||||
10109 | void CGOpenMPRuntime::emitUDMapperArrayInitOrDel( | ||||
10110 | CodeGenFunction &MapperCGF, llvm::Value *Handle, llvm::Value *Base, | ||||
10111 | llvm::Value *Begin, llvm::Value *Size, llvm::Value *MapType, | ||||
10112 | llvm::Value *MapName, CharUnits ElementSize, llvm::BasicBlock *ExitBB, | ||||
10113 | bool IsInit) { | ||||
10114 | StringRef Prefix = IsInit ? ".init" : ".del"; | ||||
10115 | |||||
10116 | // Evaluate if this is an array section. | ||||
10117 | llvm::BasicBlock *BodyBB = | ||||
10118 | MapperCGF.createBasicBlock(getName({"omp.array", Prefix})); | ||||
10119 | llvm::Value *IsArray = MapperCGF.Builder.CreateICmpSGT( | ||||
10120 | Size, MapperCGF.Builder.getInt64(1), "omp.arrayinit.isarray"); | ||||
10121 | llvm::Value *DeleteBit = MapperCGF.Builder.CreateAnd( | ||||
10122 | MapType, | ||||
10123 | MapperCGF.Builder.getInt64(MappableExprsHandler::OMP_MAP_DELETE)); | ||||
10124 | llvm::Value *DeleteCond; | ||||
10125 | llvm::Value *Cond; | ||||
10126 | if (IsInit) { | ||||
10127 | // base != begin? | ||||
10128 | llvm::Value *BaseIsBegin = MapperCGF.Builder.CreateIsNotNull( | ||||
10129 | MapperCGF.Builder.CreatePtrDiff(Base, Begin)); | ||||
10130 | // IsPtrAndObj? | ||||
10131 | llvm::Value *PtrAndObjBit = MapperCGF.Builder.CreateAnd( | ||||
10132 | MapType, | ||||
10133 | MapperCGF.Builder.getInt64(MappableExprsHandler::OMP_MAP_PTR_AND_OBJ)); | ||||
10134 | PtrAndObjBit = MapperCGF.Builder.CreateIsNotNull(PtrAndObjBit); | ||||
10135 | BaseIsBegin = MapperCGF.Builder.CreateAnd(BaseIsBegin, PtrAndObjBit); | ||||
10136 | Cond = MapperCGF.Builder.CreateOr(IsArray, BaseIsBegin); | ||||
10137 | DeleteCond = MapperCGF.Builder.CreateIsNull( | ||||
10138 | DeleteBit, getName({"omp.array", Prefix, ".delete"})); | ||||
10139 | } else { | ||||
10140 | Cond = IsArray; | ||||
10141 | DeleteCond = MapperCGF.Builder.CreateIsNotNull( | ||||
10142 | DeleteBit, getName({"omp.array", Prefix, ".delete"})); | ||||
10143 | } | ||||
10144 | Cond = MapperCGF.Builder.CreateAnd(Cond, DeleteCond); | ||||
10145 | MapperCGF.Builder.CreateCondBr(Cond, BodyBB, ExitBB); | ||||
10146 | |||||
10147 | MapperCGF.EmitBlock(BodyBB); | ||||
10148 | // Get the array size by multiplying element size and element number (i.e., \p | ||||
10149 | // Size). | ||||
10150 | llvm::Value *ArraySize = MapperCGF.Builder.CreateNUWMul( | ||||
10151 | Size, MapperCGF.Builder.getInt64(ElementSize.getQuantity())); | ||||
10152 | // Remove OMP_MAP_TO and OMP_MAP_FROM from the map type, so that it achieves | ||||
10153 | // memory allocation/deletion purpose only. | ||||
10154 | llvm::Value *MapTypeArg = MapperCGF.Builder.CreateAnd( | ||||
10155 | MapType, | ||||
10156 | MapperCGF.Builder.getInt64(~(MappableExprsHandler::OMP_MAP_TO | | ||||
10157 | MappableExprsHandler::OMP_MAP_FROM))); | ||||
10158 | MapTypeArg = MapperCGF.Builder.CreateOr( | ||||
10159 | MapTypeArg, | ||||
10160 | MapperCGF.Builder.getInt64(MappableExprsHandler::OMP_MAP_IMPLICIT)); | ||||
10161 | |||||
10162 | // Call the runtime API __tgt_push_mapper_component to fill up the runtime | ||||
10163 | // data structure. | ||||
10164 | llvm::Value *OffloadingArgs[] = {Handle, Base, Begin, | ||||
10165 | ArraySize, MapTypeArg, MapName}; | ||||
10166 | MapperCGF.EmitRuntimeCall( | ||||
10167 | OMPBuilder.getOrCreateRuntimeFunction(CGM.getModule(), | ||||
10168 | OMPRTL___tgt_push_mapper_component), | ||||
10169 | OffloadingArgs); | ||||
10170 | } | ||||
10171 | |||||
10172 | llvm::Function *CGOpenMPRuntime::getOrCreateUserDefinedMapperFunc( | ||||
10173 | const OMPDeclareMapperDecl *D) { | ||||
10174 | auto I = UDMMap.find(D); | ||||
10175 | if (I != UDMMap.end()) | ||||
10176 | return I->second; | ||||
10177 | emitUserDefinedMapper(D); | ||||
10178 | return UDMMap.lookup(D); | ||||
10179 | } | ||||
10180 | |||||
10181 | void CGOpenMPRuntime::emitTargetNumIterationsCall( | ||||
10182 | CodeGenFunction &CGF, const OMPExecutableDirective &D, | ||||
10183 | llvm::Value *DeviceID, | ||||
10184 | llvm::function_ref<llvm::Value *(CodeGenFunction &CGF, | ||||
10185 | const OMPLoopDirective &D)> | ||||
10186 | SizeEmitter) { | ||||
10187 | OpenMPDirectiveKind Kind = D.getDirectiveKind(); | ||||
10188 | const OMPExecutableDirective *TD = &D; | ||||
10189 | // Get nested teams distribute kind directive, if any. | ||||
10190 | if (!isOpenMPDistributeDirective(Kind) || !isOpenMPTeamsDirective(Kind)) | ||||
10191 | TD = getNestedDistributeDirective(CGM.getContext(), D); | ||||
10192 | if (!TD) | ||||
10193 | return; | ||||
10194 | const auto *LD = cast<OMPLoopDirective>(TD); | ||||
10195 | auto &&CodeGen = [LD, DeviceID, SizeEmitter, &D, this](CodeGenFunction &CGF, | ||||
10196 | PrePostActionTy &) { | ||||
10197 | if (llvm::Value *NumIterations = SizeEmitter(CGF, *LD)) { | ||||
10198 | llvm::Value *RTLoc = emitUpdateLocation(CGF, D.getBeginLoc()); | ||||
10199 | llvm::Value *Args[] = {RTLoc, DeviceID, NumIterations}; | ||||
10200 | CGF.EmitRuntimeCall( | ||||
10201 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
10202 | CGM.getModule(), OMPRTL___kmpc_push_target_tripcount_mapper), | ||||
10203 | Args); | ||||
10204 | } | ||||
10205 | }; | ||||
10206 | emitInlinedDirective(CGF, OMPD_unknown, CodeGen); | ||||
10207 | } | ||||
10208 | |||||
10209 | void CGOpenMPRuntime::emitTargetCall( | ||||
10210 | CodeGenFunction &CGF, const OMPExecutableDirective &D, | ||||
10211 | llvm::Function *OutlinedFn, llvm::Value *OutlinedFnID, const Expr *IfCond, | ||||
10212 | llvm::PointerIntPair<const Expr *, 2, OpenMPDeviceClauseModifier> Device, | ||||
10213 | llvm::function_ref<llvm::Value *(CodeGenFunction &CGF, | ||||
10214 | const OMPLoopDirective &D)> | ||||
10215 | SizeEmitter) { | ||||
10216 | if (!CGF.HaveInsertPoint()) | ||||
| |||||
10217 | return; | ||||
10218 | |||||
10219 | assert(OutlinedFn && "Invalid outlined function!")((void)0); | ||||
10220 | |||||
10221 | const bool RequiresOuterTask = D.hasClausesOfKind<OMPDependClause>() || | ||||
10222 | D.hasClausesOfKind<OMPNowaitClause>(); | ||||
10223 | llvm::SmallVector<llvm::Value *, 16> CapturedVars; | ||||
10224 | const CapturedStmt &CS = *D.getCapturedStmt(OMPD_target); | ||||
10225 | auto &&ArgsCodegen = [&CS, &CapturedVars](CodeGenFunction &CGF, | ||||
10226 | PrePostActionTy &) { | ||||
10227 | CGF.GenerateOpenMPCapturedVars(CS, CapturedVars); | ||||
10228 | }; | ||||
10229 | emitInlinedDirective(CGF, OMPD_unknown, ArgsCodegen); | ||||
10230 | |||||
10231 | CodeGenFunction::OMPTargetDataInfo InputInfo; | ||||
10232 | llvm::Value *MapTypesArray = nullptr; | ||||
10233 | llvm::Value *MapNamesArray = nullptr; | ||||
10234 | // Fill up the pointer arrays and transfer execution to the device. | ||||
10235 | auto &&ThenGen = [this, Device, OutlinedFn, OutlinedFnID, &D, &InputInfo, | ||||
10236 | &MapTypesArray, &MapNamesArray, &CS, RequiresOuterTask, | ||||
10237 | &CapturedVars, | ||||
10238 | SizeEmitter](CodeGenFunction &CGF, PrePostActionTy &) { | ||||
10239 | if (Device.getInt() == OMPC_DEVICE_ancestor) { | ||||
10240 | // Reverse offloading is not supported, so just execute on the host. | ||||
10241 | if (RequiresOuterTask) { | ||||
10242 | CapturedVars.clear(); | ||||
10243 | CGF.GenerateOpenMPCapturedVars(CS, CapturedVars); | ||||
10244 | } | ||||
10245 | emitOutlinedFunctionCall(CGF, D.getBeginLoc(), OutlinedFn, CapturedVars); | ||||
10246 | return; | ||||
10247 | } | ||||
10248 | |||||
10249 | // On top of the arrays that were filled up, the target offloading call | ||||
10250 | // takes as arguments the device id as well as the host pointer. The host | ||||
10251 | // pointer is used by the runtime library to identify the current target | ||||
10252 | // region, so it only has to be unique and not necessarily point to | ||||
10253 | // anything. It could be the pointer to the outlined function that | ||||
10254 | // implements the target region, but we aren't using that so that the | ||||
10255 | // compiler doesn't need to keep that, and could therefore inline the host | ||||
10256 | // function if proven worthwhile during optimization. | ||||
10257 | |||||
10258 | // From this point on, we need to have an ID of the target region defined. | ||||
10259 | assert(OutlinedFnID && "Invalid outlined function ID!")((void)0); | ||||
10260 | |||||
10261 | // Emit device ID if any. | ||||
10262 | llvm::Value *DeviceID; | ||||
10263 | if (Device.getPointer()) { | ||||
10264 | assert((Device.getInt() == OMPC_DEVICE_unknown ||((void)0) | ||||
10265 | Device.getInt() == OMPC_DEVICE_device_num) &&((void)0) | ||||
10266 | "Expected device_num modifier.")((void)0); | ||||
10267 | llvm::Value *DevVal = CGF.EmitScalarExpr(Device.getPointer()); | ||||
10268 | DeviceID = | ||||
10269 | CGF.Builder.CreateIntCast(DevVal, CGF.Int64Ty, /*isSigned=*/true); | ||||
10270 | } else { | ||||
10271 | DeviceID = CGF.Builder.getInt64(OMP_DEVICEID_UNDEF); | ||||
10272 | } | ||||
10273 | |||||
10274 | // Emit the number of elements in the offloading arrays. | ||||
10275 | llvm::Value *PointerNum = | ||||
10276 | CGF.Builder.getInt32(InputInfo.NumberOfTargetItems); | ||||
10277 | |||||
10278 | // Return value of the runtime offloading call. | ||||
10279 | llvm::Value *Return; | ||||
10280 | |||||
10281 | llvm::Value *NumTeams = emitNumTeamsForTargetDirective(CGF, D); | ||||
10282 | llvm::Value *NumThreads = emitNumThreadsForTargetDirective(CGF, D); | ||||
10283 | |||||
10284 | // Source location for the ident struct | ||||
10285 | llvm::Value *RTLoc = emitUpdateLocation(CGF, D.getBeginLoc()); | ||||
10286 | |||||
10287 | // Emit tripcount for the target loop-based directive. | ||||
10288 | emitTargetNumIterationsCall(CGF, D, DeviceID, SizeEmitter); | ||||
10289 | |||||
10290 | bool HasNowait = D.hasClausesOfKind<OMPNowaitClause>(); | ||||
10291 | // The target region is an outlined function launched by the runtime | ||||
10292 | // via calls __tgt_target() or __tgt_target_teams(). | ||||
10293 | // | ||||
10294 | // __tgt_target() launches a target region with one team and one thread, | ||||
10295 | // executing a serial region. This master thread may in turn launch | ||||
10296 | // more threads within its team upon encountering a parallel region, | ||||
10297 | // however, no additional teams can be launched on the device. | ||||
10298 | // | ||||
10299 | // __tgt_target_teams() launches a target region with one or more teams, | ||||
10300 | // each with one or more threads. This call is required for target | ||||
10301 | // constructs such as: | ||||
10302 | // 'target teams' | ||||
10303 | // 'target' / 'teams' | ||||
10304 | // 'target teams distribute parallel for' | ||||
10305 | // 'target parallel' | ||||
10306 | // and so on. | ||||
10307 | // | ||||
10308 | // Note that on the host and CPU targets, the runtime implementation of | ||||
10309 | // these calls simply call the outlined function without forking threads. | ||||
10310 | // The outlined functions themselves have runtime calls to | ||||
10311 | // __kmpc_fork_teams() and __kmpc_fork() for this purpose, codegen'd by | ||||
10312 | // the compiler in emitTeamsCall() and emitParallelCall(). | ||||
10313 | // | ||||
10314 | // In contrast, on the NVPTX target, the implementation of | ||||
10315 | // __tgt_target_teams() launches a GPU kernel with the requested number | ||||
10316 | // of teams and threads so no additional calls to the runtime are required. | ||||
10317 | if (NumTeams) { | ||||
10318 | // If we have NumTeams defined this means that we have an enclosed teams | ||||
10319 | // region. Therefore we also expect to have NumThreads defined. These two | ||||
10320 | // values should be defined in the presence of a teams directive, | ||||
10321 | // regardless of having any clauses associated. If the user is using teams | ||||
10322 | // but no clauses, these two values will be the default that should be | ||||
10323 | // passed to the runtime library - a 32-bit integer with the value zero. | ||||
10324 | assert(NumThreads && "Thread limit expression should be available along "((void)0) | ||||
10325 | "with number of teams.")((void)0); | ||||
10326 | SmallVector<llvm::Value *> OffloadingArgs = { | ||||
10327 | RTLoc, | ||||
10328 | DeviceID, | ||||
10329 | OutlinedFnID, | ||||
10330 | PointerNum, | ||||
10331 | InputInfo.BasePointersArray.getPointer(), | ||||
10332 | InputInfo.PointersArray.getPointer(), | ||||
10333 | InputInfo.SizesArray.getPointer(), | ||||
10334 | MapTypesArray, | ||||
10335 | MapNamesArray, | ||||
10336 | InputInfo.MappersArray.getPointer(), | ||||
10337 | NumTeams, | ||||
10338 | NumThreads}; | ||||
10339 | if (HasNowait) { | ||||
10340 | // Add int32_t depNum = 0, void *depList = nullptr, int32_t | ||||
10341 | // noAliasDepNum = 0, void *noAliasDepList = nullptr. | ||||
10342 | OffloadingArgs.push_back(CGF.Builder.getInt32(0)); | ||||
10343 | OffloadingArgs.push_back(llvm::ConstantPointerNull::get(CGM.VoidPtrTy)); | ||||
10344 | OffloadingArgs.push_back(CGF.Builder.getInt32(0)); | ||||
10345 | OffloadingArgs.push_back(llvm::ConstantPointerNull::get(CGM.VoidPtrTy)); | ||||
10346 | } | ||||
10347 | Return = CGF.EmitRuntimeCall( | ||||
10348 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
10349 | CGM.getModule(), HasNowait | ||||
10350 | ? OMPRTL___tgt_target_teams_nowait_mapper | ||||
10351 | : OMPRTL___tgt_target_teams_mapper), | ||||
10352 | OffloadingArgs); | ||||
10353 | } else { | ||||
10354 | SmallVector<llvm::Value *> OffloadingArgs = { | ||||
10355 | RTLoc, | ||||
10356 | DeviceID, | ||||
10357 | OutlinedFnID, | ||||
10358 | PointerNum, | ||||
10359 | InputInfo.BasePointersArray.getPointer(), | ||||
10360 | InputInfo.PointersArray.getPointer(), | ||||
10361 | InputInfo.SizesArray.getPointer(), | ||||
10362 | MapTypesArray, | ||||
10363 | MapNamesArray, | ||||
10364 | InputInfo.MappersArray.getPointer()}; | ||||
10365 | if (HasNowait) { | ||||
10366 | // Add int32_t depNum = 0, void *depList = nullptr, int32_t | ||||
10367 | // noAliasDepNum = 0, void *noAliasDepList = nullptr. | ||||
10368 | OffloadingArgs.push_back(CGF.Builder.getInt32(0)); | ||||
10369 | OffloadingArgs.push_back(llvm::ConstantPointerNull::get(CGM.VoidPtrTy)); | ||||
10370 | OffloadingArgs.push_back(CGF.Builder.getInt32(0)); | ||||
10371 | OffloadingArgs.push_back(llvm::ConstantPointerNull::get(CGM.VoidPtrTy)); | ||||
10372 | } | ||||
10373 | Return = CGF.EmitRuntimeCall( | ||||
10374 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
10375 | CGM.getModule(), HasNowait ? OMPRTL___tgt_target_nowait_mapper | ||||
10376 | : OMPRTL___tgt_target_mapper), | ||||
10377 | OffloadingArgs); | ||||
10378 | } | ||||
10379 | |||||
10380 | // Check the error code and execute the host version if required. | ||||
10381 | llvm::BasicBlock *OffloadFailedBlock = | ||||
10382 | CGF.createBasicBlock("omp_offload.failed"); | ||||
10383 | llvm::BasicBlock *OffloadContBlock = | ||||
10384 | CGF.createBasicBlock("omp_offload.cont"); | ||||
10385 | llvm::Value *Failed = CGF.Builder.CreateIsNotNull(Return); | ||||
10386 | CGF.Builder.CreateCondBr(Failed, OffloadFailedBlock, OffloadContBlock); | ||||
10387 | |||||
10388 | CGF.EmitBlock(OffloadFailedBlock); | ||||
10389 | if (RequiresOuterTask) { | ||||
10390 | CapturedVars.clear(); | ||||
10391 | CGF.GenerateOpenMPCapturedVars(CS, CapturedVars); | ||||
10392 | } | ||||
10393 | emitOutlinedFunctionCall(CGF, D.getBeginLoc(), OutlinedFn, CapturedVars); | ||||
10394 | CGF.EmitBranch(OffloadContBlock); | ||||
10395 | |||||
10396 | CGF.EmitBlock(OffloadContBlock, /*IsFinished=*/true); | ||||
10397 | }; | ||||
10398 | |||||
10399 | // Notify that the host version must be executed. | ||||
10400 | auto &&ElseGen = [this, &D, OutlinedFn, &CS, &CapturedVars, | ||||
10401 | RequiresOuterTask](CodeGenFunction &CGF, | ||||
10402 | PrePostActionTy &) { | ||||
10403 | if (RequiresOuterTask) { | ||||
10404 | CapturedVars.clear(); | ||||
10405 | CGF.GenerateOpenMPCapturedVars(CS, CapturedVars); | ||||
10406 | } | ||||
10407 | emitOutlinedFunctionCall(CGF, D.getBeginLoc(), OutlinedFn, CapturedVars); | ||||
10408 | }; | ||||
10409 | |||||
10410 | auto &&TargetThenGen = [this, &ThenGen, &D, &InputInfo, &MapTypesArray, | ||||
10411 | &MapNamesArray, &CapturedVars, RequiresOuterTask, | ||||
10412 | &CS](CodeGenFunction &CGF, PrePostActionTy &) { | ||||
10413 | // Fill up the arrays with all the captured variables. | ||||
10414 | MappableExprsHandler::MapCombinedInfoTy CombinedInfo; | ||||
10415 | |||||
10416 | // Get mappable expression information. | ||||
10417 | MappableExprsHandler MEHandler(D, CGF); | ||||
10418 | llvm::DenseMap<llvm::Value *, llvm::Value *> LambdaPointers; | ||||
10419 | llvm::DenseSet<CanonicalDeclPtr<const Decl>> MappedVarSet; | ||||
10420 | |||||
10421 | auto RI = CS.getCapturedRecordDecl()->field_begin(); | ||||
10422 | auto *CV = CapturedVars.begin(); | ||||
10423 | for (CapturedStmt::const_capture_iterator CI = CS.capture_begin(), | ||||
10424 | CE = CS.capture_end(); | ||||
10425 | CI != CE; ++CI, ++RI, ++CV) { | ||||
10426 | MappableExprsHandler::MapCombinedInfoTy CurInfo; | ||||
10427 | MappableExprsHandler::StructRangeInfoTy PartialStruct; | ||||
10428 | |||||
10429 | // VLA sizes are passed to the outlined region by copy and do not have map | ||||
10430 | // information associated. | ||||
10431 | if (CI->capturesVariableArrayType()) { | ||||
10432 | CurInfo.Exprs.push_back(nullptr); | ||||
10433 | CurInfo.BasePointers.push_back(*CV); | ||||
10434 | CurInfo.Pointers.push_back(*CV); | ||||
10435 | CurInfo.Sizes.push_back(CGF.Builder.CreateIntCast( | ||||
10436 | CGF.getTypeSize(RI->getType()), CGF.Int64Ty, /*isSigned=*/true)); | ||||
10437 | // Copy to the device as an argument. No need to retrieve it. | ||||
10438 | CurInfo.Types.push_back(MappableExprsHandler::OMP_MAP_LITERAL | | ||||
10439 | MappableExprsHandler::OMP_MAP_TARGET_PARAM | | ||||
10440 | MappableExprsHandler::OMP_MAP_IMPLICIT); | ||||
10441 | CurInfo.Mappers.push_back(nullptr); | ||||
10442 | } else { | ||||
10443 | // If we have any information in the map clause, we use it, otherwise we | ||||
10444 | // just do a default mapping. | ||||
10445 | MEHandler.generateInfoForCapture(CI, *CV, CurInfo, PartialStruct); | ||||
10446 | if (!CI->capturesThis()) | ||||
10447 | MappedVarSet.insert(CI->getCapturedVar()); | ||||
10448 | else | ||||
10449 | MappedVarSet.insert(nullptr); | ||||
10450 | if (CurInfo.BasePointers.empty() && !PartialStruct.Base.isValid()) | ||||
10451 | MEHandler.generateDefaultMapInfo(*CI, **RI, *CV, CurInfo); | ||||
10452 | // Generate correct mapping for variables captured by reference in | ||||
10453 | // lambdas. | ||||
10454 | if (CI->capturesVariable()) | ||||
10455 | MEHandler.generateInfoForLambdaCaptures(CI->getCapturedVar(), *CV, | ||||
10456 | CurInfo, LambdaPointers); | ||||
10457 | } | ||||
10458 | // We expect to have at least an element of information for this capture. | ||||
10459 | assert((!CurInfo.BasePointers.empty() || PartialStruct.Base.isValid()) &&((void)0) | ||||
10460 | "Non-existing map pointer for capture!")((void)0); | ||||
10461 | assert(CurInfo.BasePointers.size() == CurInfo.Pointers.size() &&((void)0) | ||||
10462 | CurInfo.BasePointers.size() == CurInfo.Sizes.size() &&((void)0) | ||||
10463 | CurInfo.BasePointers.size() == CurInfo.Types.size() &&((void)0) | ||||
10464 | CurInfo.BasePointers.size() == CurInfo.Mappers.size() &&((void)0) | ||||
10465 | "Inconsistent map information sizes!")((void)0); | ||||
10466 | |||||
10467 | // If there is an entry in PartialStruct it means we have a struct with | ||||
10468 | // individual members mapped. Emit an extra combined entry. | ||||
10469 | if (PartialStruct.Base.isValid()) { | ||||
10470 | CombinedInfo.append(PartialStruct.PreliminaryMapData); | ||||
10471 | MEHandler.emitCombinedEntry( | ||||
10472 | CombinedInfo, CurInfo.Types, PartialStruct, nullptr, | ||||
10473 | !PartialStruct.PreliminaryMapData.BasePointers.empty()); | ||||
10474 | } | ||||
10475 | |||||
10476 | // We need to append the results of this capture to what we already have. | ||||
10477 | CombinedInfo.append(CurInfo); | ||||
10478 | } | ||||
10479 | // Adjust MEMBER_OF flags for the lambdas captures. | ||||
10480 | MEHandler.adjustMemberOfForLambdaCaptures( | ||||
10481 | LambdaPointers, CombinedInfo.BasePointers, CombinedInfo.Pointers, | ||||
10482 | CombinedInfo.Types); | ||||
10483 | // Map any list items in a map clause that were not captures because they | ||||
10484 | // weren't referenced within the construct. | ||||
10485 | MEHandler.generateAllInfo(CombinedInfo, MappedVarSet); | ||||
10486 | |||||
10487 | TargetDataInfo Info; | ||||
10488 | // Fill up the arrays and create the arguments. | ||||
10489 | emitOffloadingArrays(CGF, CombinedInfo, Info, OMPBuilder); | ||||
10490 | emitOffloadingArraysArgument( | ||||
10491 | CGF, Info.BasePointersArray, Info.PointersArray, Info.SizesArray, | ||||
10492 | Info.MapTypesArray, Info.MapNamesArray, Info.MappersArray, Info, | ||||
10493 | {/*ForEndTask=*/false}); | ||||
10494 | |||||
10495 | InputInfo.NumberOfTargetItems = Info.NumberOfPtrs; | ||||
10496 | InputInfo.BasePointersArray = | ||||
10497 | Address(Info.BasePointersArray, CGM.getPointerAlign()); | ||||
10498 | InputInfo.PointersArray = | ||||
10499 | Address(Info.PointersArray, CGM.getPointerAlign()); | ||||
10500 | InputInfo.SizesArray = Address(Info.SizesArray, CGM.getPointerAlign()); | ||||
10501 | InputInfo.MappersArray = Address(Info.MappersArray, CGM.getPointerAlign()); | ||||
10502 | MapTypesArray = Info.MapTypesArray; | ||||
10503 | MapNamesArray = Info.MapNamesArray; | ||||
10504 | if (RequiresOuterTask) | ||||
10505 | CGF.EmitOMPTargetTaskBasedDirective(D, ThenGen, InputInfo); | ||||
10506 | else | ||||
10507 | emitInlinedDirective(CGF, D.getDirectiveKind(), ThenGen); | ||||
10508 | }; | ||||
10509 | |||||
10510 | auto &&TargetElseGen = [this, &ElseGen, &D, RequiresOuterTask]( | ||||
10511 | CodeGenFunction &CGF, PrePostActionTy &) { | ||||
10512 | if (RequiresOuterTask) { | ||||
10513 | CodeGenFunction::OMPTargetDataInfo InputInfo; | ||||
10514 | CGF.EmitOMPTargetTaskBasedDirective(D, ElseGen, InputInfo); | ||||
10515 | } else { | ||||
10516 | emitInlinedDirective(CGF, D.getDirectiveKind(), ElseGen); | ||||
10517 | } | ||||
10518 | }; | ||||
10519 | |||||
10520 | // If we have a target function ID it means that we need to support | ||||
10521 | // offloading, otherwise, just execute on the host. We need to execute on host | ||||
10522 | // regardless of the conditional in the if clause if, e.g., the user do not | ||||
10523 | // specify target triples. | ||||
10524 | if (OutlinedFnID) { | ||||
10525 | if (IfCond) { | ||||
10526 | emitIfClause(CGF, IfCond, TargetThenGen, TargetElseGen); | ||||
10527 | } else { | ||||
10528 | RegionCodeGenTy ThenRCG(TargetThenGen); | ||||
10529 | ThenRCG(CGF); | ||||
10530 | } | ||||
10531 | } else { | ||||
10532 | RegionCodeGenTy ElseRCG(TargetElseGen); | ||||
10533 | ElseRCG(CGF); | ||||
10534 | } | ||||
10535 | } | ||||
10536 | |||||
10537 | void CGOpenMPRuntime::scanForTargetRegionsFunctions(const Stmt *S, | ||||
10538 | StringRef ParentName) { | ||||
10539 | if (!S) | ||||
10540 | return; | ||||
10541 | |||||
10542 | // Codegen OMP target directives that offload compute to the device. | ||||
10543 | bool RequiresDeviceCodegen = | ||||
10544 | isa<OMPExecutableDirective>(S) && | ||||
10545 | isOpenMPTargetExecutionDirective( | ||||
10546 | cast<OMPExecutableDirective>(S)->getDirectiveKind()); | ||||
10547 | |||||
10548 | if (RequiresDeviceCodegen) { | ||||
10549 | const auto &E = *cast<OMPExecutableDirective>(S); | ||||
10550 | unsigned DeviceID; | ||||
10551 | unsigned FileID; | ||||
10552 | unsigned Line; | ||||
10553 | getTargetEntryUniqueInfo(CGM.getContext(), E.getBeginLoc(), DeviceID, | ||||
10554 | FileID, Line); | ||||
10555 | |||||
10556 | // Is this a target region that should not be emitted as an entry point? If | ||||
10557 | // so just signal we are done with this target region. | ||||
10558 | if (!OffloadEntriesInfoManager.hasTargetRegionEntryInfo(DeviceID, FileID, | ||||
10559 | ParentName, Line)) | ||||
10560 | return; | ||||
10561 | |||||
10562 | switch (E.getDirectiveKind()) { | ||||
10563 | case OMPD_target: | ||||
10564 | CodeGenFunction::EmitOMPTargetDeviceFunction(CGM, ParentName, | ||||
10565 | cast<OMPTargetDirective>(E)); | ||||
10566 | break; | ||||
10567 | case OMPD_target_parallel: | ||||
10568 | CodeGenFunction::EmitOMPTargetParallelDeviceFunction( | ||||
10569 | CGM, ParentName, cast<OMPTargetParallelDirective>(E)); | ||||
10570 | break; | ||||
10571 | case OMPD_target_teams: | ||||
10572 | CodeGenFunction::EmitOMPTargetTeamsDeviceFunction( | ||||
10573 | CGM, ParentName, cast<OMPTargetTeamsDirective>(E)); | ||||
10574 | break; | ||||
10575 | case OMPD_target_teams_distribute: | ||||
10576 | CodeGenFunction::EmitOMPTargetTeamsDistributeDeviceFunction( | ||||
10577 | CGM, ParentName, cast<OMPTargetTeamsDistributeDirective>(E)); | ||||
10578 | break; | ||||
10579 | case OMPD_target_teams_distribute_simd: | ||||
10580 | CodeGenFunction::EmitOMPTargetTeamsDistributeSimdDeviceFunction( | ||||
10581 | CGM, ParentName, cast<OMPTargetTeamsDistributeSimdDirective>(E)); | ||||
10582 | break; | ||||
10583 | case OMPD_target_parallel_for: | ||||
10584 | CodeGenFunction::EmitOMPTargetParallelForDeviceFunction( | ||||
10585 | CGM, ParentName, cast<OMPTargetParallelForDirective>(E)); | ||||
10586 | break; | ||||
10587 | case OMPD_target_parallel_for_simd: | ||||
10588 | CodeGenFunction::EmitOMPTargetParallelForSimdDeviceFunction( | ||||
10589 | CGM, ParentName, cast<OMPTargetParallelForSimdDirective>(E)); | ||||
10590 | break; | ||||
10591 | case OMPD_target_simd: | ||||
10592 | CodeGenFunction::EmitOMPTargetSimdDeviceFunction( | ||||
10593 | CGM, ParentName, cast<OMPTargetSimdDirective>(E)); | ||||
10594 | break; | ||||
10595 | case OMPD_target_teams_distribute_parallel_for: | ||||
10596 | CodeGenFunction::EmitOMPTargetTeamsDistributeParallelForDeviceFunction( | ||||
10597 | CGM, ParentName, | ||||
10598 | cast<OMPTargetTeamsDistributeParallelForDirective>(E)); | ||||
10599 | break; | ||||
10600 | case OMPD_target_teams_distribute_parallel_for_simd: | ||||
10601 | CodeGenFunction:: | ||||
10602 | EmitOMPTargetTeamsDistributeParallelForSimdDeviceFunction( | ||||
10603 | CGM, ParentName, | ||||
10604 | cast<OMPTargetTeamsDistributeParallelForSimdDirective>(E)); | ||||
10605 | break; | ||||
10606 | case OMPD_parallel: | ||||
10607 | case OMPD_for: | ||||
10608 | case OMPD_parallel_for: | ||||
10609 | case OMPD_parallel_master: | ||||
10610 | case OMPD_parallel_sections: | ||||
10611 | case OMPD_for_simd: | ||||
10612 | case OMPD_parallel_for_simd: | ||||
10613 | case OMPD_cancel: | ||||
10614 | case OMPD_cancellation_point: | ||||
10615 | case OMPD_ordered: | ||||
10616 | case OMPD_threadprivate: | ||||
10617 | case OMPD_allocate: | ||||
10618 | case OMPD_task: | ||||
10619 | case OMPD_simd: | ||||
10620 | case OMPD_tile: | ||||
10621 | case OMPD_unroll: | ||||
10622 | case OMPD_sections: | ||||
10623 | case OMPD_section: | ||||
10624 | case OMPD_single: | ||||
10625 | case OMPD_master: | ||||
10626 | case OMPD_critical: | ||||
10627 | case OMPD_taskyield: | ||||
10628 | case OMPD_barrier: | ||||
10629 | case OMPD_taskwait: | ||||
10630 | case OMPD_taskgroup: | ||||
10631 | case OMPD_atomic: | ||||
10632 | case OMPD_flush: | ||||
10633 | case OMPD_depobj: | ||||
10634 | case OMPD_scan: | ||||
10635 | case OMPD_teams: | ||||
10636 | case OMPD_target_data: | ||||
10637 | case OMPD_target_exit_data: | ||||
10638 | case OMPD_target_enter_data: | ||||
10639 | case OMPD_distribute: | ||||
10640 | case OMPD_distribute_simd: | ||||
10641 | case OMPD_distribute_parallel_for: | ||||
10642 | case OMPD_distribute_parallel_for_simd: | ||||
10643 | case OMPD_teams_distribute: | ||||
10644 | case OMPD_teams_distribute_simd: | ||||
10645 | case OMPD_teams_distribute_parallel_for: | ||||
10646 | case OMPD_teams_distribute_parallel_for_simd: | ||||
10647 | case OMPD_target_update: | ||||
10648 | case OMPD_declare_simd: | ||||
10649 | case OMPD_declare_variant: | ||||
10650 | case OMPD_begin_declare_variant: | ||||
10651 | case OMPD_end_declare_variant: | ||||
10652 | case OMPD_declare_target: | ||||
10653 | case OMPD_end_declare_target: | ||||
10654 | case OMPD_declare_reduction: | ||||
10655 | case OMPD_declare_mapper: | ||||
10656 | case OMPD_taskloop: | ||||
10657 | case OMPD_taskloop_simd: | ||||
10658 | case OMPD_master_taskloop: | ||||
10659 | case OMPD_master_taskloop_simd: | ||||
10660 | case OMPD_parallel_master_taskloop: | ||||
10661 | case OMPD_parallel_master_taskloop_simd: | ||||
10662 | case OMPD_requires: | ||||
10663 | case OMPD_unknown: | ||||
10664 | default: | ||||
10665 | llvm_unreachable("Unknown target directive for OpenMP device codegen.")__builtin_unreachable(); | ||||
10666 | } | ||||
10667 | return; | ||||
10668 | } | ||||
10669 | |||||
10670 | if (const auto *E = dyn_cast<OMPExecutableDirective>(S)) { | ||||
10671 | if (!E->hasAssociatedStmt() || !E->getAssociatedStmt()) | ||||
10672 | return; | ||||
10673 | |||||
10674 | scanForTargetRegionsFunctions(E->getRawStmt(), ParentName); | ||||
10675 | return; | ||||
10676 | } | ||||
10677 | |||||
10678 | // If this is a lambda function, look into its body. | ||||
10679 | if (const auto *L = dyn_cast<LambdaExpr>(S)) | ||||
10680 | S = L->getBody(); | ||||
10681 | |||||
10682 | // Keep looking for target regions recursively. | ||||
10683 | for (const Stmt *II : S->children()) | ||||
10684 | scanForTargetRegionsFunctions(II, ParentName); | ||||
10685 | } | ||||
10686 | |||||
10687 | static bool isAssumedToBeNotEmitted(const ValueDecl *VD, bool IsDevice) { | ||||
10688 | Optional<OMPDeclareTargetDeclAttr::DevTypeTy> DevTy = | ||||
10689 | OMPDeclareTargetDeclAttr::getDeviceType(VD); | ||||
10690 | if (!DevTy) | ||||
10691 | return false; | ||||
10692 | // Do not emit device_type(nohost) functions for the host. | ||||
10693 | if (!IsDevice && DevTy == OMPDeclareTargetDeclAttr::DT_NoHost) | ||||
10694 | return true; | ||||
10695 | // Do not emit device_type(host) functions for the device. | ||||
10696 | if (IsDevice && DevTy == OMPDeclareTargetDeclAttr::DT_Host) | ||||
10697 | return true; | ||||
10698 | return false; | ||||
10699 | } | ||||
10700 | |||||
10701 | bool CGOpenMPRuntime::emitTargetFunctions(GlobalDecl GD) { | ||||
10702 | // If emitting code for the host, we do not process FD here. Instead we do | ||||
10703 | // the normal code generation. | ||||
10704 | if (!CGM.getLangOpts().OpenMPIsDevice) { | ||||
10705 | if (const auto *FD = dyn_cast<FunctionDecl>(GD.getDecl())) | ||||
10706 | if (isAssumedToBeNotEmitted(cast<ValueDecl>(FD), | ||||
10707 | CGM.getLangOpts().OpenMPIsDevice)) | ||||
10708 | return true; | ||||
10709 | return false; | ||||
10710 | } | ||||
10711 | |||||
10712 | const ValueDecl *VD = cast<ValueDecl>(GD.getDecl()); | ||||
10713 | // Try to detect target regions in the function. | ||||
10714 | if (const auto *FD = dyn_cast<FunctionDecl>(VD)) { | ||||
10715 | StringRef Name = CGM.getMangledName(GD); | ||||
10716 | scanForTargetRegionsFunctions(FD->getBody(), Name); | ||||
10717 | if (isAssumedToBeNotEmitted(cast<ValueDecl>(FD), | ||||
10718 | CGM.getLangOpts().OpenMPIsDevice)) | ||||
10719 | return true; | ||||
10720 | } | ||||
10721 | |||||
10722 | // Do not to emit function if it is not marked as declare target. | ||||
10723 | return !OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD) && | ||||
10724 | AlreadyEmittedTargetDecls.count(VD) == 0; | ||||
10725 | } | ||||
10726 | |||||
10727 | bool CGOpenMPRuntime::emitTargetGlobalVariable(GlobalDecl GD) { | ||||
10728 | if (isAssumedToBeNotEmitted(cast<ValueDecl>(GD.getDecl()), | ||||
10729 | CGM.getLangOpts().OpenMPIsDevice)) | ||||
10730 | return true; | ||||
10731 | |||||
10732 | if (!CGM.getLangOpts().OpenMPIsDevice) | ||||
10733 | return false; | ||||
10734 | |||||
10735 | // Check if there are Ctors/Dtors in this declaration and look for target | ||||
10736 | // regions in it. We use the complete variant to produce the kernel name | ||||
10737 | // mangling. | ||||
10738 | QualType RDTy = cast<VarDecl>(GD.getDecl())->getType(); | ||||
10739 | if (const auto *RD = RDTy->getBaseElementTypeUnsafe()->getAsCXXRecordDecl()) { | ||||
10740 | for (const CXXConstructorDecl *Ctor : RD->ctors()) { | ||||
10741 | StringRef ParentName = | ||||
10742 | CGM.getMangledName(GlobalDecl(Ctor, Ctor_Complete)); | ||||
10743 | scanForTargetRegionsFunctions(Ctor->getBody(), ParentName); | ||||
10744 | } | ||||
10745 | if (const CXXDestructorDecl *Dtor = RD->getDestructor()) { | ||||
10746 | StringRef ParentName = | ||||
10747 | CGM.getMangledName(GlobalDecl(Dtor, Dtor_Complete)); | ||||
10748 | scanForTargetRegionsFunctions(Dtor->getBody(), ParentName); | ||||
10749 | } | ||||
10750 | } | ||||
10751 | |||||
10752 | // Do not to emit variable if it is not marked as declare target. | ||||
10753 | llvm::Optional<OMPDeclareTargetDeclAttr::MapTypeTy> Res = | ||||
10754 | OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration( | ||||
10755 | cast<VarDecl>(GD.getDecl())); | ||||
10756 | if (!Res || *Res == OMPDeclareTargetDeclAttr::MT_Link || | ||||
10757 | (*Res == OMPDeclareTargetDeclAttr::MT_To && | ||||
10758 | HasRequiresUnifiedSharedMemory)) { | ||||
10759 | DeferredGlobalVariables.insert(cast<VarDecl>(GD.getDecl())); | ||||
10760 | return true; | ||||
10761 | } | ||||
10762 | return false; | ||||
10763 | } | ||||
10764 | |||||
10765 | void CGOpenMPRuntime::registerTargetGlobalVariable(const VarDecl *VD, | ||||
10766 | llvm::Constant *Addr) { | ||||
10767 | if (CGM.getLangOpts().OMPTargetTriples.empty() && | ||||
10768 | !CGM.getLangOpts().OpenMPIsDevice) | ||||
10769 | return; | ||||
10770 | |||||
10771 | // If we have host/nohost variables, they do not need to be registered. | ||||
10772 | Optional<OMPDeclareTargetDeclAttr::DevTypeTy> DevTy = | ||||
10773 | OMPDeclareTargetDeclAttr::getDeviceType(VD); | ||||
10774 | if (DevTy && DevTy.getValue() != OMPDeclareTargetDeclAttr::DT_Any) | ||||
10775 | return; | ||||
10776 | |||||
10777 | llvm::Optional<OMPDeclareTargetDeclAttr::MapTypeTy> Res = | ||||
10778 | OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD); | ||||
10779 | if (!Res) { | ||||
10780 | if (CGM.getLangOpts().OpenMPIsDevice) { | ||||
10781 | // Register non-target variables being emitted in device code (debug info | ||||
10782 | // may cause this). | ||||
10783 | StringRef VarName = CGM.getMangledName(VD); | ||||
10784 | EmittedNonTargetVariables.try_emplace(VarName, Addr); | ||||
10785 | } | ||||
10786 | return; | ||||
10787 | } | ||||
10788 | // Register declare target variables. | ||||
10789 | OffloadEntriesInfoManagerTy::OMPTargetGlobalVarEntryKind Flags; | ||||
10790 | StringRef VarName; | ||||
10791 | CharUnits VarSize; | ||||
10792 | llvm::GlobalValue::LinkageTypes Linkage; | ||||
10793 | |||||
10794 | if (*Res == OMPDeclareTargetDeclAttr::MT_To && | ||||
10795 | !HasRequiresUnifiedSharedMemory) { | ||||
10796 | Flags = OffloadEntriesInfoManagerTy::OMPTargetGlobalVarEntryTo; | ||||
10797 | VarName = CGM.getMangledName(VD); | ||||
10798 | if (VD->hasDefinition(CGM.getContext()) != VarDecl::DeclarationOnly) { | ||||
10799 | VarSize = CGM.getContext().getTypeSizeInChars(VD->getType()); | ||||
10800 | assert(!VarSize.isZero() && "Expected non-zero size of the variable")((void)0); | ||||
10801 | } else { | ||||
10802 | VarSize = CharUnits::Zero(); | ||||
10803 | } | ||||
10804 | Linkage = CGM.getLLVMLinkageVarDefinition(VD, /*IsConstant=*/false); | ||||
10805 | // Temp solution to prevent optimizations of the internal variables. | ||||
10806 | if (CGM.getLangOpts().OpenMPIsDevice && !VD->isExternallyVisible()) { | ||||
10807 | // Do not create a "ref-variable" if the original is not also available | ||||
10808 | // on the host. | ||||
10809 | if (!OffloadEntriesInfoManager.hasDeviceGlobalVarEntryInfo(VarName)) | ||||
10810 | return; | ||||
10811 | std::string RefName = getName({VarName, "ref"}); | ||||
10812 | if (!CGM.GetGlobalValue(RefName)) { | ||||
10813 | llvm::Constant *AddrRef = | ||||
10814 | getOrCreateInternalVariable(Addr->getType(), RefName); | ||||
10815 | auto *GVAddrRef = cast<llvm::GlobalVariable>(AddrRef); | ||||
10816 | GVAddrRef->setConstant(/*Val=*/true); | ||||
10817 | GVAddrRef->setLinkage(llvm::GlobalValue::InternalLinkage); | ||||
10818 | GVAddrRef->setInitializer(Addr); | ||||
10819 | CGM.addCompilerUsedGlobal(GVAddrRef); | ||||
10820 | } | ||||
10821 | } | ||||
10822 | } else { | ||||
10823 | assert(((*Res == OMPDeclareTargetDeclAttr::MT_Link) ||((void)0) | ||||
10824 | (*Res == OMPDeclareTargetDeclAttr::MT_To &&((void)0) | ||||
10825 | HasRequiresUnifiedSharedMemory)) &&((void)0) | ||||
10826 | "Declare target attribute must link or to with unified memory.")((void)0); | ||||
10827 | if (*Res == OMPDeclareTargetDeclAttr::MT_Link) | ||||
10828 | Flags = OffloadEntriesInfoManagerTy::OMPTargetGlobalVarEntryLink; | ||||
10829 | else | ||||
10830 | Flags = OffloadEntriesInfoManagerTy::OMPTargetGlobalVarEntryTo; | ||||
10831 | |||||
10832 | if (CGM.getLangOpts().OpenMPIsDevice) { | ||||
10833 | VarName = Addr->getName(); | ||||
10834 | Addr = nullptr; | ||||
10835 | } else { | ||||
10836 | VarName = getAddrOfDeclareTargetVar(VD).getName(); | ||||
10837 | Addr = cast<llvm::Constant>(getAddrOfDeclareTargetVar(VD).getPointer()); | ||||
10838 | } | ||||
10839 | VarSize = CGM.getPointerSize(); | ||||
10840 | Linkage = llvm::GlobalValue::WeakAnyLinkage; | ||||
10841 | } | ||||
10842 | |||||
10843 | OffloadEntriesInfoManager.registerDeviceGlobalVarEntryInfo( | ||||
10844 | VarName, Addr, VarSize, Flags, Linkage); | ||||
10845 | } | ||||
10846 | |||||
10847 | bool CGOpenMPRuntime::emitTargetGlobal(GlobalDecl GD) { | ||||
10848 | if (isa<FunctionDecl>(GD.getDecl()) || | ||||
10849 | isa<OMPDeclareReductionDecl>(GD.getDecl())) | ||||
10850 | return emitTargetFunctions(GD); | ||||
10851 | |||||
10852 | return emitTargetGlobalVariable(GD); | ||||
10853 | } | ||||
10854 | |||||
10855 | void CGOpenMPRuntime::emitDeferredTargetDecls() const { | ||||
10856 | for (const VarDecl *VD : DeferredGlobalVariables) { | ||||
10857 | llvm::Optional<OMPDeclareTargetDeclAttr::MapTypeTy> Res = | ||||
10858 | OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD); | ||||
10859 | if (!Res) | ||||
10860 | continue; | ||||
10861 | if (*Res == OMPDeclareTargetDeclAttr::MT_To && | ||||
10862 | !HasRequiresUnifiedSharedMemory) { | ||||
10863 | CGM.EmitGlobal(VD); | ||||
10864 | } else { | ||||
10865 | assert((*Res == OMPDeclareTargetDeclAttr::MT_Link ||((void)0) | ||||
10866 | (*Res == OMPDeclareTargetDeclAttr::MT_To &&((void)0) | ||||
10867 | HasRequiresUnifiedSharedMemory)) &&((void)0) | ||||
10868 | "Expected link clause or to clause with unified memory.")((void)0); | ||||
10869 | (void)CGM.getOpenMPRuntime().getAddrOfDeclareTargetVar(VD); | ||||
10870 | } | ||||
10871 | } | ||||
10872 | } | ||||
10873 | |||||
10874 | void CGOpenMPRuntime::adjustTargetSpecificDataForLambdas( | ||||
10875 | CodeGenFunction &CGF, const OMPExecutableDirective &D) const { | ||||
10876 | assert(isOpenMPTargetExecutionDirective(D.getDirectiveKind()) &&((void)0) | ||||
10877 | " Expected target-based directive.")((void)0); | ||||
10878 | } | ||||
10879 | |||||
10880 | void CGOpenMPRuntime::processRequiresDirective(const OMPRequiresDecl *D) { | ||||
10881 | for (const OMPClause *Clause : D->clauselists()) { | ||||
10882 | if (Clause->getClauseKind() == OMPC_unified_shared_memory) { | ||||
10883 | HasRequiresUnifiedSharedMemory = true; | ||||
10884 | } else if (const auto *AC = | ||||
10885 | dyn_cast<OMPAtomicDefaultMemOrderClause>(Clause)) { | ||||
10886 | switch (AC->getAtomicDefaultMemOrderKind()) { | ||||
10887 | case OMPC_ATOMIC_DEFAULT_MEM_ORDER_acq_rel: | ||||
10888 | RequiresAtomicOrdering = llvm::AtomicOrdering::AcquireRelease; | ||||
10889 | break; | ||||
10890 | case OMPC_ATOMIC_DEFAULT_MEM_ORDER_seq_cst: | ||||
10891 | RequiresAtomicOrdering = llvm::AtomicOrdering::SequentiallyConsistent; | ||||
10892 | break; | ||||
10893 | case OMPC_ATOMIC_DEFAULT_MEM_ORDER_relaxed: | ||||
10894 | RequiresAtomicOrdering = llvm::AtomicOrdering::Monotonic; | ||||
10895 | break; | ||||
10896 | case OMPC_ATOMIC_DEFAULT_MEM_ORDER_unknown: | ||||
10897 | break; | ||||
10898 | } | ||||
10899 | } | ||||
10900 | } | ||||
10901 | } | ||||
10902 | |||||
10903 | llvm::AtomicOrdering CGOpenMPRuntime::getDefaultMemoryOrdering() const { | ||||
10904 | return RequiresAtomicOrdering; | ||||
10905 | } | ||||
10906 | |||||
10907 | bool CGOpenMPRuntime::hasAllocateAttributeForGlobalVar(const VarDecl *VD, | ||||
10908 | LangAS &AS) { | ||||
10909 | if (!VD || !VD->hasAttr<OMPAllocateDeclAttr>()) | ||||
10910 | return false; | ||||
10911 | const auto *A = VD->getAttr<OMPAllocateDeclAttr>(); | ||||
10912 | switch(A->getAllocatorType()) { | ||||
10913 | case OMPAllocateDeclAttr::OMPNullMemAlloc: | ||||
10914 | case OMPAllocateDeclAttr::OMPDefaultMemAlloc: | ||||
10915 | // Not supported, fallback to the default mem space. | ||||
10916 | case OMPAllocateDeclAttr::OMPLargeCapMemAlloc: | ||||
10917 | case OMPAllocateDeclAttr::OMPCGroupMemAlloc: | ||||
10918 | case OMPAllocateDeclAttr::OMPHighBWMemAlloc: | ||||
10919 | case OMPAllocateDeclAttr::OMPLowLatMemAlloc: | ||||
10920 | case OMPAllocateDeclAttr::OMPThreadMemAlloc: | ||||
10921 | case OMPAllocateDeclAttr::OMPConstMemAlloc: | ||||
10922 | case OMPAllocateDeclAttr::OMPPTeamMemAlloc: | ||||
10923 | AS = LangAS::Default; | ||||
10924 | return true; | ||||
10925 | case OMPAllocateDeclAttr::OMPUserDefinedMemAlloc: | ||||
10926 | llvm_unreachable("Expected predefined allocator for the variables with the "__builtin_unreachable() | ||||
10927 | "static storage.")__builtin_unreachable(); | ||||
10928 | } | ||||
10929 | return false; | ||||
10930 | } | ||||
10931 | |||||
10932 | bool CGOpenMPRuntime::hasRequiresUnifiedSharedMemory() const { | ||||
10933 | return HasRequiresUnifiedSharedMemory; | ||||
10934 | } | ||||
10935 | |||||
10936 | CGOpenMPRuntime::DisableAutoDeclareTargetRAII::DisableAutoDeclareTargetRAII( | ||||
10937 | CodeGenModule &CGM) | ||||
10938 | : CGM(CGM) { | ||||
10939 | if (CGM.getLangOpts().OpenMPIsDevice) { | ||||
10940 | SavedShouldMarkAsGlobal = CGM.getOpenMPRuntime().ShouldMarkAsGlobal; | ||||
10941 | CGM.getOpenMPRuntime().ShouldMarkAsGlobal = false; | ||||
10942 | } | ||||
10943 | } | ||||
10944 | |||||
10945 | CGOpenMPRuntime::DisableAutoDeclareTargetRAII::~DisableAutoDeclareTargetRAII() { | ||||
10946 | if (CGM.getLangOpts().OpenMPIsDevice) | ||||
10947 | CGM.getOpenMPRuntime().ShouldMarkAsGlobal = SavedShouldMarkAsGlobal; | ||||
10948 | } | ||||
10949 | |||||
10950 | bool CGOpenMPRuntime::markAsGlobalTarget(GlobalDecl GD) { | ||||
10951 | if (!CGM.getLangOpts().OpenMPIsDevice || !ShouldMarkAsGlobal) | ||||
10952 | return true; | ||||
10953 | |||||
10954 | const auto *D = cast<FunctionDecl>(GD.getDecl()); | ||||
10955 | // Do not to emit function if it is marked as declare target as it was already | ||||
10956 | // emitted. | ||||
10957 | if (OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(D)) { | ||||
10958 | if (D->hasBody() && AlreadyEmittedTargetDecls.count(D) == 0) { | ||||
10959 | if (auto *F = dyn_cast_or_null<llvm::Function>( | ||||
10960 | CGM.GetGlobalValue(CGM.getMangledName(GD)))) | ||||
10961 | return !F->isDeclaration(); | ||||
10962 | return false; | ||||
10963 | } | ||||
10964 | return true; | ||||
10965 | } | ||||
10966 | |||||
10967 | return !AlreadyEmittedTargetDecls.insert(D).second; | ||||
10968 | } | ||||
10969 | |||||
10970 | llvm::Function *CGOpenMPRuntime::emitRequiresDirectiveRegFun() { | ||||
10971 | // If we don't have entries or if we are emitting code for the device, we | ||||
10972 | // don't need to do anything. | ||||
10973 | if (CGM.getLangOpts().OMPTargetTriples.empty() || | ||||
10974 | CGM.getLangOpts().OpenMPSimd || CGM.getLangOpts().OpenMPIsDevice || | ||||
10975 | (OffloadEntriesInfoManager.empty() && | ||||
10976 | !HasEmittedDeclareTargetRegion && | ||||
10977 | !HasEmittedTargetRegion)) | ||||
10978 | return nullptr; | ||||
10979 | |||||
10980 | // Create and register the function that handles the requires directives. | ||||
10981 | ASTContext &C = CGM.getContext(); | ||||
10982 | |||||
10983 | llvm::Function *RequiresRegFn; | ||||
10984 | { | ||||
10985 | CodeGenFunction CGF(CGM); | ||||
10986 | const auto &FI = CGM.getTypes().arrangeNullaryFunction(); | ||||
10987 | llvm::FunctionType *FTy = CGM.getTypes().GetFunctionType(FI); | ||||
10988 | std::string ReqName = getName({"omp_offloading", "requires_reg"}); | ||||
10989 | RequiresRegFn = CGM.CreateGlobalInitOrCleanUpFunction(FTy, ReqName, FI); | ||||
10990 | CGF.StartFunction(GlobalDecl(), C.VoidTy, RequiresRegFn, FI, {}); | ||||
10991 | OpenMPOffloadingRequiresDirFlags Flags = OMP_REQ_NONE; | ||||
10992 | // TODO: check for other requires clauses. | ||||
10993 | // The requires directive takes effect only when a target region is | ||||
10994 | // present in the compilation unit. Otherwise it is ignored and not | ||||
10995 | // passed to the runtime. This avoids the runtime from throwing an error | ||||
10996 | // for mismatching requires clauses across compilation units that don't | ||||
10997 | // contain at least 1 target region. | ||||
10998 | assert((HasEmittedTargetRegion ||((void)0) | ||||
10999 | HasEmittedDeclareTargetRegion ||((void)0) | ||||
11000 | !OffloadEntriesInfoManager.empty()) &&((void)0) | ||||
11001 | "Target or declare target region expected.")((void)0); | ||||
11002 | if (HasRequiresUnifiedSharedMemory) | ||||
11003 | Flags = OMP_REQ_UNIFIED_SHARED_MEMORY; | ||||
11004 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
11005 | CGM.getModule(), OMPRTL___tgt_register_requires), | ||||
11006 | llvm::ConstantInt::get(CGM.Int64Ty, Flags)); | ||||
11007 | CGF.FinishFunction(); | ||||
11008 | } | ||||
11009 | return RequiresRegFn; | ||||
11010 | } | ||||
11011 | |||||
11012 | void CGOpenMPRuntime::emitTeamsCall(CodeGenFunction &CGF, | ||||
11013 | const OMPExecutableDirective &D, | ||||
11014 | SourceLocation Loc, | ||||
11015 | llvm::Function *OutlinedFn, | ||||
11016 | ArrayRef<llvm::Value *> CapturedVars) { | ||||
11017 | if (!CGF.HaveInsertPoint()) | ||||
11018 | return; | ||||
11019 | |||||
11020 | llvm::Value *RTLoc = emitUpdateLocation(CGF, Loc); | ||||
11021 | CodeGenFunction::RunCleanupsScope Scope(CGF); | ||||
11022 | |||||
11023 | // Build call __kmpc_fork_teams(loc, n, microtask, var1, .., varn); | ||||
11024 | llvm::Value *Args[] = { | ||||
11025 | RTLoc, | ||||
11026 | CGF.Builder.getInt32(CapturedVars.size()), // Number of captured vars | ||||
11027 | CGF.Builder.CreateBitCast(OutlinedFn, getKmpc_MicroPointerTy())}; | ||||
11028 | llvm::SmallVector<llvm::Value *, 16> RealArgs; | ||||
11029 | RealArgs.append(std::begin(Args), std::end(Args)); | ||||
11030 | RealArgs.append(CapturedVars.begin(), CapturedVars.end()); | ||||
11031 | |||||
11032 | llvm::FunctionCallee RTLFn = OMPBuilder.getOrCreateRuntimeFunction( | ||||
11033 | CGM.getModule(), OMPRTL___kmpc_fork_teams); | ||||
11034 | CGF.EmitRuntimeCall(RTLFn, RealArgs); | ||||
11035 | } | ||||
11036 | |||||
11037 | void CGOpenMPRuntime::emitNumTeamsClause(CodeGenFunction &CGF, | ||||
11038 | const Expr *NumTeams, | ||||
11039 | const Expr *ThreadLimit, | ||||
11040 | SourceLocation Loc) { | ||||
11041 | if (!CGF.HaveInsertPoint()) | ||||
11042 | return; | ||||
11043 | |||||
11044 | llvm::Value *RTLoc = emitUpdateLocation(CGF, Loc); | ||||
11045 | |||||
11046 | llvm::Value *NumTeamsVal = | ||||
11047 | NumTeams | ||||
11048 | ? CGF.Builder.CreateIntCast(CGF.EmitScalarExpr(NumTeams), | ||||
11049 | CGF.CGM.Int32Ty, /* isSigned = */ true) | ||||
11050 | : CGF.Builder.getInt32(0); | ||||
11051 | |||||
11052 | llvm::Value *ThreadLimitVal = | ||||
11053 | ThreadLimit | ||||
11054 | ? CGF.Builder.CreateIntCast(CGF.EmitScalarExpr(ThreadLimit), | ||||
11055 | CGF.CGM.Int32Ty, /* isSigned = */ true) | ||||
11056 | : CGF.Builder.getInt32(0); | ||||
11057 | |||||
11058 | // Build call __kmpc_push_num_teamss(&loc, global_tid, num_teams, thread_limit) | ||||
11059 | llvm::Value *PushNumTeamsArgs[] = {RTLoc, getThreadID(CGF, Loc), NumTeamsVal, | ||||
11060 | ThreadLimitVal}; | ||||
11061 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
11062 | CGM.getModule(), OMPRTL___kmpc_push_num_teams), | ||||
11063 | PushNumTeamsArgs); | ||||
11064 | } | ||||
11065 | |||||
11066 | void CGOpenMPRuntime::emitTargetDataCalls( | ||||
11067 | CodeGenFunction &CGF, const OMPExecutableDirective &D, const Expr *IfCond, | ||||
11068 | const Expr *Device, const RegionCodeGenTy &CodeGen, TargetDataInfo &Info) { | ||||
11069 | if (!CGF.HaveInsertPoint()) | ||||
11070 | return; | ||||
11071 | |||||
11072 | // Action used to replace the default codegen action and turn privatization | ||||
11073 | // off. | ||||
11074 | PrePostActionTy NoPrivAction; | ||||
11075 | |||||
11076 | // Generate the code for the opening of the data environment. Capture all the | ||||
11077 | // arguments of the runtime call by reference because they are used in the | ||||
11078 | // closing of the region. | ||||
11079 | auto &&BeginThenGen = [this, &D, Device, &Info, | ||||
11080 | &CodeGen](CodeGenFunction &CGF, PrePostActionTy &) { | ||||
11081 | // Fill up the arrays with all the mapped variables. | ||||
11082 | MappableExprsHandler::MapCombinedInfoTy CombinedInfo; | ||||
11083 | |||||
11084 | // Get map clause information. | ||||
11085 | MappableExprsHandler MEHandler(D, CGF); | ||||
11086 | MEHandler.generateAllInfo(CombinedInfo); | ||||
11087 | |||||
11088 | // Fill up the arrays and create the arguments. | ||||
11089 | emitOffloadingArrays(CGF, CombinedInfo, Info, OMPBuilder, | ||||
11090 | /*IsNonContiguous=*/true); | ||||
11091 | |||||
11092 | llvm::Value *BasePointersArrayArg = nullptr; | ||||
11093 | llvm::Value *PointersArrayArg = nullptr; | ||||
11094 | llvm::Value *SizesArrayArg = nullptr; | ||||
11095 | llvm::Value *MapTypesArrayArg = nullptr; | ||||
11096 | llvm::Value *MapNamesArrayArg = nullptr; | ||||
11097 | llvm::Value *MappersArrayArg = nullptr; | ||||
11098 | emitOffloadingArraysArgument(CGF, BasePointersArrayArg, PointersArrayArg, | ||||
11099 | SizesArrayArg, MapTypesArrayArg, | ||||
11100 | MapNamesArrayArg, MappersArrayArg, Info); | ||||
11101 | |||||
11102 | // Emit device ID if any. | ||||
11103 | llvm::Value *DeviceID = nullptr; | ||||
11104 | if (Device) { | ||||
11105 | DeviceID = CGF.Builder.CreateIntCast(CGF.EmitScalarExpr(Device), | ||||
11106 | CGF.Int64Ty, /*isSigned=*/true); | ||||
11107 | } else { | ||||
11108 | DeviceID = CGF.Builder.getInt64(OMP_DEVICEID_UNDEF); | ||||
11109 | } | ||||
11110 | |||||
11111 | // Emit the number of elements in the offloading arrays. | ||||
11112 | llvm::Value *PointerNum = CGF.Builder.getInt32(Info.NumberOfPtrs); | ||||
11113 | // | ||||
11114 | // Source location for the ident struct | ||||
11115 | llvm::Value *RTLoc = emitUpdateLocation(CGF, D.getBeginLoc()); | ||||
11116 | |||||
11117 | llvm::Value *OffloadingArgs[] = {RTLoc, | ||||
11118 | DeviceID, | ||||
11119 | PointerNum, | ||||
11120 | BasePointersArrayArg, | ||||
11121 | PointersArrayArg, | ||||
11122 | SizesArrayArg, | ||||
11123 | MapTypesArrayArg, | ||||
11124 | MapNamesArrayArg, | ||||
11125 | MappersArrayArg}; | ||||
11126 | CGF.EmitRuntimeCall( | ||||
11127 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
11128 | CGM.getModule(), OMPRTL___tgt_target_data_begin_mapper), | ||||
11129 | OffloadingArgs); | ||||
11130 | |||||
11131 | // If device pointer privatization is required, emit the body of the region | ||||
11132 | // here. It will have to be duplicated: with and without privatization. | ||||
11133 | if (!Info.CaptureDeviceAddrMap.empty()) | ||||
11134 | CodeGen(CGF); | ||||
11135 | }; | ||||
11136 | |||||
11137 | // Generate code for the closing of the data region. | ||||
11138 | auto &&EndThenGen = [this, Device, &Info, &D](CodeGenFunction &CGF, | ||||
11139 | PrePostActionTy &) { | ||||
11140 | assert(Info.isValid() && "Invalid data environment closing arguments.")((void)0); | ||||
11141 | |||||
11142 | llvm::Value *BasePointersArrayArg = nullptr; | ||||
11143 | llvm::Value *PointersArrayArg = nullptr; | ||||
11144 | llvm::Value *SizesArrayArg = nullptr; | ||||
11145 | llvm::Value *MapTypesArrayArg = nullptr; | ||||
11146 | llvm::Value *MapNamesArrayArg = nullptr; | ||||
11147 | llvm::Value *MappersArrayArg = nullptr; | ||||
11148 | emitOffloadingArraysArgument(CGF, BasePointersArrayArg, PointersArrayArg, | ||||
11149 | SizesArrayArg, MapTypesArrayArg, | ||||
11150 | MapNamesArrayArg, MappersArrayArg, Info, | ||||
11151 | {/*ForEndCall=*/true}); | ||||
11152 | |||||
11153 | // Emit device ID if any. | ||||
11154 | llvm::Value *DeviceID = nullptr; | ||||
11155 | if (Device) { | ||||
11156 | DeviceID = CGF.Builder.CreateIntCast(CGF.EmitScalarExpr(Device), | ||||
11157 | CGF.Int64Ty, /*isSigned=*/true); | ||||
11158 | } else { | ||||
11159 | DeviceID = CGF.Builder.getInt64(OMP_DEVICEID_UNDEF); | ||||
11160 | } | ||||
11161 | |||||
11162 | // Emit the number of elements in the offloading arrays. | ||||
11163 | llvm::Value *PointerNum = CGF.Builder.getInt32(Info.NumberOfPtrs); | ||||
11164 | |||||
11165 | // Source location for the ident struct | ||||
11166 | llvm::Value *RTLoc = emitUpdateLocation(CGF, D.getBeginLoc()); | ||||
11167 | |||||
11168 | llvm::Value *OffloadingArgs[] = {RTLoc, | ||||
11169 | DeviceID, | ||||
11170 | PointerNum, | ||||
11171 | BasePointersArrayArg, | ||||
11172 | PointersArrayArg, | ||||
11173 | SizesArrayArg, | ||||
11174 | MapTypesArrayArg, | ||||
11175 | MapNamesArrayArg, | ||||
11176 | MappersArrayArg}; | ||||
11177 | CGF.EmitRuntimeCall( | ||||
11178 | OMPBuilder.getOrCreateRuntimeFunction( | ||||
11179 | CGM.getModule(), OMPRTL___tgt_target_data_end_mapper), | ||||
11180 | OffloadingArgs); | ||||
11181 | }; | ||||
11182 | |||||
11183 | // If we need device pointer privatization, we need to emit the body of the | ||||
11184 | // region with no privatization in the 'else' branch of the conditional. | ||||
11185 | // Otherwise, we don't have to do anything. | ||||
11186 | auto &&BeginElseGen = [&Info, &CodeGen, &NoPrivAction](CodeGenFunction &CGF, | ||||
11187 | PrePostActionTy &) { | ||||
11188 | if (!Info.CaptureDeviceAddrMap.empty()) { | ||||
11189 | CodeGen.setAction(NoPrivAction); | ||||
11190 | CodeGen(CGF); | ||||
11191 | } | ||||
11192 | }; | ||||
11193 | |||||
11194 | // We don't have to do anything to close the region if the if clause evaluates | ||||
11195 | // to false. | ||||
11196 | auto &&EndElseGen = [](CodeGenFunction &CGF, PrePostActionTy &) {}; | ||||
11197 | |||||
11198 | if (IfCond) { | ||||
11199 | emitIfClause(CGF, IfCond, BeginThenGen, BeginElseGen); | ||||
11200 | } else { | ||||
11201 | RegionCodeGenTy RCG(BeginThenGen); | ||||
11202 | RCG(CGF); | ||||
11203 | } | ||||
11204 | |||||
11205 | // If we don't require privatization of device pointers, we emit the body in | ||||
11206 | // between the runtime calls. This avoids duplicating the body code. | ||||
11207 | if (Info.CaptureDeviceAddrMap.empty()) { | ||||
11208 | CodeGen.setAction(NoPrivAction); | ||||
11209 | CodeGen(CGF); | ||||
11210 | } | ||||
11211 | |||||
11212 | if (IfCond) { | ||||
11213 | emitIfClause(CGF, IfCond, EndThenGen, EndElseGen); | ||||
11214 | } else { | ||||
11215 | RegionCodeGenTy RCG(EndThenGen); | ||||
11216 | RCG(CGF); | ||||
11217 | } | ||||
11218 | } | ||||
11219 | |||||
11220 | void CGOpenMPRuntime::emitTargetDataStandAloneCall( | ||||
11221 | CodeGenFunction &CGF, const OMPExecutableDirective &D, const Expr *IfCond, | ||||
11222 | const Expr *Device) { | ||||
11223 | if (!CGF.HaveInsertPoint()) | ||||
11224 | return; | ||||
11225 | |||||
11226 | assert((isa<OMPTargetEnterDataDirective>(D) ||((void)0) | ||||
11227 | isa<OMPTargetExitDataDirective>(D) ||((void)0) | ||||
11228 | isa<OMPTargetUpdateDirective>(D)) &&((void)0) | ||||
11229 | "Expecting either target enter, exit data, or update directives.")((void)0); | ||||
11230 | |||||
11231 | CodeGenFunction::OMPTargetDataInfo InputInfo; | ||||
11232 | llvm::Value *MapTypesArray = nullptr; | ||||
11233 | llvm::Value *MapNamesArray = nullptr; | ||||
11234 | // Generate the code for the opening of the data environment. | ||||
11235 | auto &&ThenGen = [this, &D, Device, &InputInfo, &MapTypesArray, | ||||
11236 | &MapNamesArray](CodeGenFunction &CGF, PrePostActionTy &) { | ||||
11237 | // Emit device ID if any. | ||||
11238 | llvm::Value *DeviceID = nullptr; | ||||
11239 | if (Device) { | ||||
11240 | DeviceID = CGF.Builder.CreateIntCast(CGF.EmitScalarExpr(Device), | ||||
11241 | CGF.Int64Ty, /*isSigned=*/true); | ||||
11242 | } else { | ||||
11243 | DeviceID = CGF.Builder.getInt64(OMP_DEVICEID_UNDEF); | ||||
11244 | } | ||||
11245 | |||||
11246 | // Emit the number of elements in the offloading arrays. | ||||
11247 | llvm::Constant *PointerNum = | ||||
11248 | CGF.Builder.getInt32(InputInfo.NumberOfTargetItems); | ||||
11249 | |||||
11250 | // Source location for the ident struct | ||||
11251 | llvm::Value *RTLoc = emitUpdateLocation(CGF, D.getBeginLoc()); | ||||
11252 | |||||
11253 | llvm::Value *OffloadingArgs[] = {RTLoc, | ||||
11254 | DeviceID, | ||||
11255 | PointerNum, | ||||
11256 | InputInfo.BasePointersArray.getPointer(), | ||||
11257 | InputInfo.PointersArray.getPointer(), | ||||
11258 | InputInfo.SizesArray.getPointer(), | ||||
11259 | MapTypesArray, | ||||
11260 | MapNamesArray, | ||||
11261 | InputInfo.MappersArray.getPointer()}; | ||||
11262 | |||||
11263 | // Select the right runtime function call for each standalone | ||||
11264 | // directive. | ||||
11265 | const bool HasNowait = D.hasClausesOfKind<OMPNowaitClause>(); | ||||
11266 | RuntimeFunction RTLFn; | ||||
11267 | switch (D.getDirectiveKind()) { | ||||
11268 | case OMPD_target_enter_data: | ||||
11269 | RTLFn = HasNowait ? OMPRTL___tgt_target_data_begin_nowait_mapper | ||||
11270 | : OMPRTL___tgt_target_data_begin_mapper; | ||||
11271 | break; | ||||
11272 | case OMPD_target_exit_data: | ||||
11273 | RTLFn = HasNowait ? OMPRTL___tgt_target_data_end_nowait_mapper | ||||
11274 | : OMPRTL___tgt_target_data_end_mapper; | ||||
11275 | break; | ||||
11276 | case OMPD_target_update: | ||||
11277 | RTLFn = HasNowait ? OMPRTL___tgt_target_data_update_nowait_mapper | ||||
11278 | : OMPRTL___tgt_target_data_update_mapper; | ||||
11279 | break; | ||||
11280 | case OMPD_parallel: | ||||
11281 | case OMPD_for: | ||||
11282 | case OMPD_parallel_for: | ||||
11283 | case OMPD_parallel_master: | ||||
11284 | case OMPD_parallel_sections: | ||||
11285 | case OMPD_for_simd: | ||||
11286 | case OMPD_parallel_for_simd: | ||||
11287 | case OMPD_cancel: | ||||
11288 | case OMPD_cancellation_point: | ||||
11289 | case OMPD_ordered: | ||||
11290 | case OMPD_threadprivate: | ||||
11291 | case OMPD_allocate: | ||||
11292 | case OMPD_task: | ||||
11293 | case OMPD_simd: | ||||
11294 | case OMPD_tile: | ||||
11295 | case OMPD_unroll: | ||||
11296 | case OMPD_sections: | ||||
11297 | case OMPD_section: | ||||
11298 | case OMPD_single: | ||||
11299 | case OMPD_master: | ||||
11300 | case OMPD_critical: | ||||
11301 | case OMPD_taskyield: | ||||
11302 | case OMPD_barrier: | ||||
11303 | case OMPD_taskwait: | ||||
11304 | case OMPD_taskgroup: | ||||
11305 | case OMPD_atomic: | ||||
11306 | case OMPD_flush: | ||||
11307 | case OMPD_depobj: | ||||
11308 | case OMPD_scan: | ||||
11309 | case OMPD_teams: | ||||
11310 | case OMPD_target_data: | ||||
11311 | case OMPD_distribute: | ||||
11312 | case OMPD_distribute_simd: | ||||
11313 | case OMPD_distribute_parallel_for: | ||||
11314 | case OMPD_distribute_parallel_for_simd: | ||||
11315 | case OMPD_teams_distribute: | ||||
11316 | case OMPD_teams_distribute_simd: | ||||
11317 | case OMPD_teams_distribute_parallel_for: | ||||
11318 | case OMPD_teams_distribute_parallel_for_simd: | ||||
11319 | case OMPD_declare_simd: | ||||
11320 | case OMPD_declare_variant: | ||||
11321 | case OMPD_begin_declare_variant: | ||||
11322 | case OMPD_end_declare_variant: | ||||
11323 | case OMPD_declare_target: | ||||
11324 | case OMPD_end_declare_target: | ||||
11325 | case OMPD_declare_reduction: | ||||
11326 | case OMPD_declare_mapper: | ||||
11327 | case OMPD_taskloop: | ||||
11328 | case OMPD_taskloop_simd: | ||||
11329 | case OMPD_master_taskloop: | ||||
11330 | case OMPD_master_taskloop_simd: | ||||
11331 | case OMPD_parallel_master_taskloop: | ||||
11332 | case OMPD_parallel_master_taskloop_simd: | ||||
11333 | case OMPD_target: | ||||
11334 | case OMPD_target_simd: | ||||
11335 | case OMPD_target_teams_distribute: | ||||
11336 | case OMPD_target_teams_distribute_simd: | ||||
11337 | case OMPD_target_teams_distribute_parallel_for: | ||||
11338 | case OMPD_target_teams_distribute_parallel_for_simd: | ||||
11339 | case OMPD_target_teams: | ||||
11340 | case OMPD_target_parallel: | ||||
11341 | case OMPD_target_parallel_for: | ||||
11342 | case OMPD_target_parallel_for_simd: | ||||
11343 | case OMPD_requires: | ||||
11344 | case OMPD_unknown: | ||||
11345 | default: | ||||
11346 | llvm_unreachable("Unexpected standalone target data directive.")__builtin_unreachable(); | ||||
11347 | break; | ||||
11348 | } | ||||
11349 | CGF.EmitRuntimeCall( | ||||
11350 | OMPBuilder.getOrCreateRuntimeFunction(CGM.getModule(), RTLFn), | ||||
11351 | OffloadingArgs); | ||||
11352 | }; | ||||
11353 | |||||
11354 | auto &&TargetThenGen = [this, &ThenGen, &D, &InputInfo, &MapTypesArray, | ||||
11355 | &MapNamesArray](CodeGenFunction &CGF, | ||||
11356 | PrePostActionTy &) { | ||||
11357 | // Fill up the arrays with all the mapped variables. | ||||
11358 | MappableExprsHandler::MapCombinedInfoTy CombinedInfo; | ||||
11359 | |||||
11360 | // Get map clause information. | ||||
11361 | MappableExprsHandler MEHandler(D, CGF); | ||||
11362 | MEHandler.generateAllInfo(CombinedInfo); | ||||
11363 | |||||
11364 | TargetDataInfo Info; | ||||
11365 | // Fill up the arrays and create the arguments. | ||||
11366 | emitOffloadingArrays(CGF, CombinedInfo, Info, OMPBuilder, | ||||
11367 | /*IsNonContiguous=*/true); | ||||
11368 | bool RequiresOuterTask = D.hasClausesOfKind<OMPDependClause>() || | ||||
11369 | D.hasClausesOfKind<OMPNowaitClause>(); | ||||
11370 | emitOffloadingArraysArgument( | ||||
11371 | CGF, Info.BasePointersArray, Info.PointersArray, Info.SizesArray, | ||||
11372 | Info.MapTypesArray, Info.MapNamesArray, Info.MappersArray, Info, | ||||
11373 | {/*ForEndTask=*/false}); | ||||
11374 | InputInfo.NumberOfTargetItems = Info.NumberOfPtrs; | ||||
11375 | InputInfo.BasePointersArray = | ||||
11376 | Address(Info.BasePointersArray, CGM.getPointerAlign()); | ||||
11377 | InputInfo.PointersArray = | ||||
11378 | Address(Info.PointersArray, CGM.getPointerAlign()); | ||||
11379 | InputInfo.SizesArray = | ||||
11380 | Address(Info.SizesArray, CGM.getPointerAlign()); | ||||
11381 | InputInfo.MappersArray = Address(Info.MappersArray, CGM.getPointerAlign()); | ||||
11382 | MapTypesArray = Info.MapTypesArray; | ||||
11383 | MapNamesArray = Info.MapNamesArray; | ||||
11384 | if (RequiresOuterTask) | ||||
11385 | CGF.EmitOMPTargetTaskBasedDirective(D, ThenGen, InputInfo); | ||||
11386 | else | ||||
11387 | emitInlinedDirective(CGF, D.getDirectiveKind(), ThenGen); | ||||
11388 | }; | ||||
11389 | |||||
11390 | if (IfCond) { | ||||
11391 | emitIfClause(CGF, IfCond, TargetThenGen, | ||||
11392 | [](CodeGenFunction &CGF, PrePostActionTy &) {}); | ||||
11393 | } else { | ||||
11394 | RegionCodeGenTy ThenRCG(TargetThenGen); | ||||
11395 | ThenRCG(CGF); | ||||
11396 | } | ||||
11397 | } | ||||
11398 | |||||
11399 | namespace { | ||||
11400 | /// Kind of parameter in a function with 'declare simd' directive. | ||||
11401 | enum ParamKindTy { LinearWithVarStride, Linear, Uniform, Vector }; | ||||
11402 | /// Attribute set of the parameter. | ||||
11403 | struct ParamAttrTy { | ||||
11404 | ParamKindTy Kind = Vector; | ||||
11405 | llvm::APSInt StrideOrArg; | ||||
11406 | llvm::APSInt Alignment; | ||||
11407 | }; | ||||
11408 | } // namespace | ||||
11409 | |||||
11410 | static unsigned evaluateCDTSize(const FunctionDecl *FD, | ||||
11411 | ArrayRef<ParamAttrTy> ParamAttrs) { | ||||
11412 | // Every vector variant of a SIMD-enabled function has a vector length (VLEN). | ||||
11413 | // If OpenMP clause "simdlen" is used, the VLEN is the value of the argument | ||||
11414 | // of that clause. The VLEN value must be power of 2. | ||||
11415 | // In other case the notion of the function`s "characteristic data type" (CDT) | ||||
11416 | // is used to compute the vector length. | ||||
11417 | // CDT is defined in the following order: | ||||
11418 | // a) For non-void function, the CDT is the return type. | ||||
11419 | // b) If the function has any non-uniform, non-linear parameters, then the | ||||
11420 | // CDT is the type of the first such parameter. | ||||
11421 | // c) If the CDT determined by a) or b) above is struct, union, or class | ||||
11422 | // type which is pass-by-value (except for the type that maps to the | ||||
11423 | // built-in complex data type), the characteristic data type is int. | ||||
11424 | // d) If none of the above three cases is applicable, the CDT is int. | ||||
11425 | // The VLEN is then determined based on the CDT and the size of vector | ||||
11426 | // register of that ISA for which current vector version is generated. The | ||||
11427 | // VLEN is computed using the formula below: | ||||
11428 | // VLEN = sizeof(vector_register) / sizeof(CDT), | ||||
11429 | // where vector register size specified in section 3.2.1 Registers and the | ||||
11430 | // Stack Frame of original AMD64 ABI document. | ||||
11431 | QualType RetType = FD->getReturnType(); | ||||
11432 | if (RetType.isNull()) | ||||
11433 | return 0; | ||||
11434 | ASTContext &C = FD->getASTContext(); | ||||
11435 | QualType CDT; | ||||
11436 | if (!RetType.isNull() && !RetType->isVoidType()) { | ||||
11437 | CDT = RetType; | ||||
11438 | } else { | ||||
11439 | unsigned Offset = 0; | ||||
11440 | if (const auto *MD = dyn_cast<CXXMethodDecl>(FD)) { | ||||
11441 | if (ParamAttrs[Offset].Kind == Vector) | ||||
11442 | CDT = C.getPointerType(C.getRecordType(MD->getParent())); | ||||
11443 | ++Offset; | ||||
11444 | } | ||||
11445 | if (CDT.isNull()) { | ||||
11446 | for (unsigned I = 0, E = FD->getNumParams(); I < E; ++I) { | ||||
11447 | if (ParamAttrs[I + Offset].Kind == Vector) { | ||||
11448 | CDT = FD->getParamDecl(I)->getType(); | ||||
11449 | break; | ||||
11450 | } | ||||
11451 | } | ||||
11452 | } | ||||
11453 | } | ||||
11454 | if (CDT.isNull()) | ||||
11455 | CDT = C.IntTy; | ||||
11456 | CDT = CDT->getCanonicalTypeUnqualified(); | ||||
11457 | if (CDT->isRecordType() || CDT->isUnionType()) | ||||
11458 | CDT = C.IntTy; | ||||
11459 | return C.getTypeSize(CDT); | ||||
11460 | } | ||||
11461 | |||||
11462 | static void | ||||
11463 | emitX86DeclareSimdFunction(const FunctionDecl *FD, llvm::Function *Fn, | ||||
11464 | const llvm::APSInt &VLENVal, | ||||
11465 | ArrayRef<ParamAttrTy> ParamAttrs, | ||||
11466 | OMPDeclareSimdDeclAttr::BranchStateTy State) { | ||||
11467 | struct ISADataTy { | ||||
11468 | char ISA; | ||||
11469 | unsigned VecRegSize; | ||||
11470 | }; | ||||
11471 | ISADataTy ISAData[] = { | ||||
11472 | { | ||||
11473 | 'b', 128 | ||||
11474 | }, // SSE | ||||
11475 | { | ||||
11476 | 'c', 256 | ||||
11477 | }, // AVX | ||||
11478 | { | ||||
11479 | 'd', 256 | ||||
11480 | }, // AVX2 | ||||
11481 | { | ||||
11482 | 'e', 512 | ||||
11483 | }, // AVX512 | ||||
11484 | }; | ||||
11485 | llvm::SmallVector<char, 2> Masked; | ||||
11486 | switch (State) { | ||||
11487 | case OMPDeclareSimdDeclAttr::BS_Undefined: | ||||
11488 | Masked.push_back('N'); | ||||
11489 | Masked.push_back('M'); | ||||
11490 | break; | ||||
11491 | case OMPDeclareSimdDeclAttr::BS_Notinbranch: | ||||
11492 | Masked.push_back('N'); | ||||
11493 | break; | ||||
11494 | case OMPDeclareSimdDeclAttr::BS_Inbranch: | ||||
11495 | Masked.push_back('M'); | ||||
11496 | break; | ||||
11497 | } | ||||
11498 | for (char Mask : Masked) { | ||||
11499 | for (const ISADataTy &Data : ISAData) { | ||||
11500 | SmallString<256> Buffer; | ||||
11501 | llvm::raw_svector_ostream Out(Buffer); | ||||
11502 | Out << "_ZGV" << Data.ISA << Mask; | ||||
11503 | if (!VLENVal) { | ||||
11504 | unsigned NumElts = evaluateCDTSize(FD, ParamAttrs); | ||||
11505 | assert(NumElts && "Non-zero simdlen/cdtsize expected")((void)0); | ||||
11506 | Out << llvm::APSInt::getUnsigned(Data.VecRegSize / NumElts); | ||||
11507 | } else { | ||||
11508 | Out << VLENVal; | ||||
11509 | } | ||||
11510 | for (const ParamAttrTy &ParamAttr : ParamAttrs) { | ||||
11511 | switch (ParamAttr.Kind){ | ||||
11512 | case LinearWithVarStride: | ||||
11513 | Out << 's' << ParamAttr.StrideOrArg; | ||||
11514 | break; | ||||
11515 | case Linear: | ||||
11516 | Out << 'l'; | ||||
11517 | if (ParamAttr.StrideOrArg != 1) | ||||
11518 | Out << ParamAttr.StrideOrArg; | ||||
11519 | break; | ||||
11520 | case Uniform: | ||||
11521 | Out << 'u'; | ||||
11522 | break; | ||||
11523 | case Vector: | ||||
11524 | Out << 'v'; | ||||
11525 | break; | ||||
11526 | } | ||||
11527 | if (!!ParamAttr.Alignment) | ||||
11528 | Out << 'a' << ParamAttr.Alignment; | ||||
11529 | } | ||||
11530 | Out << '_' << Fn->getName(); | ||||
11531 | Fn->addFnAttr(Out.str()); | ||||
11532 | } | ||||
11533 | } | ||||
11534 | } | ||||
11535 | |||||
11536 | // This are the Functions that are needed to mangle the name of the | ||||
11537 | // vector functions generated by the compiler, according to the rules | ||||
11538 | // defined in the "Vector Function ABI specifications for AArch64", | ||||
11539 | // available at | ||||
11540 | // https://developer.arm.com/products/software-development-tools/hpc/arm-compiler-for-hpc/vector-function-abi. | ||||
11541 | |||||
11542 | /// Maps To Vector (MTV), as defined in 3.1.1 of the AAVFABI. | ||||
11543 | /// | ||||
11544 | /// TODO: Need to implement the behavior for reference marked with a | ||||
11545 | /// var or no linear modifiers (1.b in the section). For this, we | ||||
11546 | /// need to extend ParamKindTy to support the linear modifiers. | ||||
11547 | static bool getAArch64MTV(QualType QT, ParamKindTy Kind) { | ||||
11548 | QT = QT.getCanonicalType(); | ||||
11549 | |||||
11550 | if (QT->isVoidType()) | ||||
11551 | return false; | ||||
11552 | |||||
11553 | if (Kind == ParamKindTy::Uniform) | ||||
11554 | return false; | ||||
11555 | |||||
11556 | if (Kind == ParamKindTy::Linear) | ||||
11557 | return false; | ||||
11558 | |||||
11559 | // TODO: Handle linear references with modifiers | ||||
11560 | |||||
11561 | if (Kind == ParamKindTy::LinearWithVarStride) | ||||
11562 | return false; | ||||
11563 | |||||
11564 | return true; | ||||
11565 | } | ||||
11566 | |||||
11567 | /// Pass By Value (PBV), as defined in 3.1.2 of the AAVFABI. | ||||
11568 | static bool getAArch64PBV(QualType QT, ASTContext &C) { | ||||
11569 | QT = QT.getCanonicalType(); | ||||
11570 | unsigned Size = C.getTypeSize(QT); | ||||
11571 | |||||
11572 | // Only scalars and complex within 16 bytes wide set PVB to true. | ||||
11573 | if (Size != 8 && Size != 16 && Size != 32 && Size != 64 && Size != 128) | ||||
11574 | return false; | ||||
11575 | |||||
11576 | if (QT->isFloatingType()) | ||||
11577 | return true; | ||||
11578 | |||||
11579 | if (QT->isIntegerType()) | ||||
11580 | return true; | ||||
11581 | |||||
11582 | if (QT->isPointerType()) | ||||
11583 | return true; | ||||
11584 | |||||
11585 | // TODO: Add support for complex types (section 3.1.2, item 2). | ||||
11586 | |||||
11587 | return false; | ||||
11588 | } | ||||
11589 | |||||
11590 | /// Computes the lane size (LS) of a return type or of an input parameter, | ||||
11591 | /// as defined by `LS(P)` in 3.2.1 of the AAVFABI. | ||||
11592 | /// TODO: Add support for references, section 3.2.1, item 1. | ||||
11593 | static unsigned getAArch64LS(QualType QT, ParamKindTy Kind, ASTContext &C) { | ||||
11594 | if (!getAArch64MTV(QT, Kind) && QT.getCanonicalType()->isPointerType()) { | ||||
11595 | QualType PTy = QT.getCanonicalType()->getPointeeType(); | ||||
11596 | if (getAArch64PBV(PTy, C)) | ||||
11597 | return C.getTypeSize(PTy); | ||||
11598 | } | ||||
11599 | if (getAArch64PBV(QT, C)) | ||||
11600 | return C.getTypeSize(QT); | ||||
11601 | |||||
11602 | return C.getTypeSize(C.getUIntPtrType()); | ||||
11603 | } | ||||
11604 | |||||
11605 | // Get Narrowest Data Size (NDS) and Widest Data Size (WDS) from the | ||||
11606 | // signature of the scalar function, as defined in 3.2.2 of the | ||||
11607 | // AAVFABI. | ||||
11608 | static std::tuple<unsigned, unsigned, bool> | ||||
11609 | getNDSWDS(const FunctionDecl *FD, ArrayRef<ParamAttrTy> ParamAttrs) { | ||||
11610 | QualType RetType = FD->getReturnType().getCanonicalType(); | ||||
11611 | |||||
11612 | ASTContext &C = FD->getASTContext(); | ||||
11613 | |||||
11614 | bool OutputBecomesInput = false; | ||||
11615 | |||||
11616 | llvm::SmallVector<unsigned, 8> Sizes; | ||||
11617 | if (!RetType->isVoidType()) { | ||||
11618 | Sizes.push_back(getAArch64LS(RetType, ParamKindTy::Vector, C)); | ||||
11619 | if (!getAArch64PBV(RetType, C) && getAArch64MTV(RetType, {})) | ||||
11620 | OutputBecomesInput = true; | ||||
11621 | } | ||||
11622 | for (unsigned I = 0, E = FD->getNumParams(); I < E; ++I) { | ||||
11623 | QualType QT = FD->getParamDecl(I)->getType().getCanonicalType(); | ||||
11624 | Sizes.push_back(getAArch64LS(QT, ParamAttrs[I].Kind, C)); | ||||
11625 | } | ||||
11626 | |||||
11627 | assert(!Sizes.empty() && "Unable to determine NDS and WDS.")((void)0); | ||||
11628 | // The LS of a function parameter / return value can only be a power | ||||
11629 | // of 2, starting from 8 bits, up to 128. | ||||
11630 | assert(std::all_of(Sizes.begin(), Sizes.end(),((void)0) | ||||
11631 | [](unsigned Size) {((void)0) | ||||
11632 | return Size == 8 || Size == 16 || Size == 32 ||((void)0) | ||||
11633 | Size == 64 || Size == 128;((void)0) | ||||
11634 | }) &&((void)0) | ||||
11635 | "Invalid size")((void)0); | ||||
11636 | |||||
11637 | return std::make_tuple(*std::min_element(std::begin(Sizes), std::end(Sizes)), | ||||
11638 | *std::max_element(std::begin(Sizes), std::end(Sizes)), | ||||
11639 | OutputBecomesInput); | ||||
11640 | } | ||||
11641 | |||||
11642 | /// Mangle the parameter part of the vector function name according to | ||||
11643 | /// their OpenMP classification. The mangling function is defined in | ||||
11644 | /// section 3.5 of the AAVFABI. | ||||
11645 | static std::string mangleVectorParameters(ArrayRef<ParamAttrTy> ParamAttrs) { | ||||
11646 | SmallString<256> Buffer; | ||||
11647 | llvm::raw_svector_ostream Out(Buffer); | ||||
11648 | for (const auto &ParamAttr : ParamAttrs) { | ||||
11649 | switch (ParamAttr.Kind) { | ||||
11650 | case LinearWithVarStride: | ||||
11651 | Out << "ls" << ParamAttr.StrideOrArg; | ||||
11652 | break; | ||||
11653 | case Linear: | ||||
11654 | Out << 'l'; | ||||
11655 | // Don't print the step value if it is not present or if it is | ||||
11656 | // equal to 1. | ||||
11657 | if (ParamAttr.StrideOrArg != 1) | ||||
11658 | Out << ParamAttr.StrideOrArg; | ||||
11659 | break; | ||||
11660 | case Uniform: | ||||
11661 | Out << 'u'; | ||||
11662 | break; | ||||
11663 | case Vector: | ||||
11664 | Out << 'v'; | ||||
11665 | break; | ||||
11666 | } | ||||
11667 | |||||
11668 | if (!!ParamAttr.Alignment) | ||||
11669 | Out << 'a' << ParamAttr.Alignment; | ||||
11670 | } | ||||
11671 | |||||
11672 | return std::string(Out.str()); | ||||
11673 | } | ||||
11674 | |||||
11675 | // Function used to add the attribute. The parameter `VLEN` is | ||||
11676 | // templated to allow the use of "x" when targeting scalable functions | ||||
11677 | // for SVE. | ||||
11678 | template <typename T> | ||||
11679 | static void addAArch64VectorName(T VLEN, StringRef LMask, StringRef Prefix, | ||||
11680 | char ISA, StringRef ParSeq, | ||||
11681 | StringRef MangledName, bool OutputBecomesInput, | ||||
11682 | llvm::Function *Fn) { | ||||
11683 | SmallString<256> Buffer; | ||||
11684 | llvm::raw_svector_ostream Out(Buffer); | ||||
11685 | Out << Prefix << ISA << LMask << VLEN; | ||||
11686 | if (OutputBecomesInput) | ||||
11687 | Out << "v"; | ||||
11688 | Out << ParSeq << "_" << MangledName; | ||||
11689 | Fn->addFnAttr(Out.str()); | ||||
11690 | } | ||||
11691 | |||||
11692 | // Helper function to generate the Advanced SIMD names depending on | ||||
11693 | // the value of the NDS when simdlen is not present. | ||||
11694 | static void addAArch64AdvSIMDNDSNames(unsigned NDS, StringRef Mask, | ||||
11695 | StringRef Prefix, char ISA, | ||||
11696 | StringRef ParSeq, StringRef MangledName, | ||||
11697 | bool OutputBecomesInput, | ||||
11698 | llvm::Function *Fn) { | ||||
11699 | switch (NDS) { | ||||
11700 | case 8: | ||||
11701 | addAArch64VectorName(8, Mask, Prefix, ISA, ParSeq, MangledName, | ||||
11702 | OutputBecomesInput, Fn); | ||||
11703 | addAArch64VectorName(16, Mask, Prefix, ISA, ParSeq, MangledName, | ||||
11704 | OutputBecomesInput, Fn); | ||||
11705 | break; | ||||
11706 | case 16: | ||||
11707 | addAArch64VectorName(4, Mask, Prefix, ISA, ParSeq, MangledName, | ||||
11708 | OutputBecomesInput, Fn); | ||||
11709 | addAArch64VectorName(8, Mask, Prefix, ISA, ParSeq, MangledName, | ||||
11710 | OutputBecomesInput, Fn); | ||||
11711 | break; | ||||
11712 | case 32: | ||||
11713 | addAArch64VectorName(2, Mask, Prefix, ISA, ParSeq, MangledName, | ||||
11714 | OutputBecomesInput, Fn); | ||||
11715 | addAArch64VectorName(4, Mask, Prefix, ISA, ParSeq, MangledName, | ||||
11716 | OutputBecomesInput, Fn); | ||||
11717 | break; | ||||
11718 | case 64: | ||||
11719 | case 128: | ||||
11720 | addAArch64VectorName(2, Mask, Prefix, ISA, ParSeq, MangledName, | ||||
11721 | OutputBecomesInput, Fn); | ||||
11722 | break; | ||||
11723 | default: | ||||
11724 | llvm_unreachable("Scalar type is too wide.")__builtin_unreachable(); | ||||
11725 | } | ||||
11726 | } | ||||
11727 | |||||
11728 | /// Emit vector function attributes for AArch64, as defined in the AAVFABI. | ||||
11729 | static void emitAArch64DeclareSimdFunction( | ||||
11730 | CodeGenModule &CGM, const FunctionDecl *FD, unsigned UserVLEN, | ||||
11731 | ArrayRef<ParamAttrTy> ParamAttrs, | ||||
11732 | OMPDeclareSimdDeclAttr::BranchStateTy State, StringRef MangledName, | ||||
11733 | char ISA, unsigned VecRegSize, llvm::Function *Fn, SourceLocation SLoc) { | ||||
11734 | |||||
11735 | // Get basic data for building the vector signature. | ||||
11736 | const auto Data = getNDSWDS(FD, ParamAttrs); | ||||
11737 | const unsigned NDS = std::get<0>(Data); | ||||
11738 | const unsigned WDS = std::get<1>(Data); | ||||
11739 | const bool OutputBecomesInput = std::get<2>(Data); | ||||
11740 | |||||
11741 | // Check the values provided via `simdlen` by the user. | ||||
11742 | // 1. A `simdlen(1)` doesn't produce vector signatures, | ||||
11743 | if (UserVLEN == 1) { | ||||
11744 | unsigned DiagID = CGM.getDiags().getCustomDiagID( | ||||
11745 | DiagnosticsEngine::Warning, | ||||
11746 | "The clause simdlen(1) has no effect when targeting aarch64."); | ||||
11747 | CGM.getDiags().Report(SLoc, DiagID); | ||||
11748 | return; | ||||
11749 | } | ||||
11750 | |||||
11751 | // 2. Section 3.3.1, item 1: user input must be a power of 2 for | ||||
11752 | // Advanced SIMD output. | ||||
11753 | if (ISA == 'n' && UserVLEN && !llvm::isPowerOf2_32(UserVLEN)) { | ||||
11754 | unsigned DiagID = CGM.getDiags().getCustomDiagID( | ||||
11755 | DiagnosticsEngine::Warning, "The value specified in simdlen must be a " | ||||
11756 | "power of 2 when targeting Advanced SIMD."); | ||||
11757 | CGM.getDiags().Report(SLoc, DiagID); | ||||
11758 | return; | ||||
11759 | } | ||||
11760 | |||||
11761 | // 3. Section 3.4.1. SVE fixed lengh must obey the architectural | ||||
11762 | // limits. | ||||
11763 | if (ISA == 's' && UserVLEN != 0) { | ||||
11764 | if ((UserVLEN * WDS > 2048) || (UserVLEN * WDS % 128 != 0)) { | ||||
11765 | unsigned DiagID = CGM.getDiags().getCustomDiagID( | ||||
11766 | DiagnosticsEngine::Warning, "The clause simdlen must fit the %0-bit " | ||||
11767 | "lanes in the architectural constraints " | ||||
11768 | "for SVE (min is 128-bit, max is " | ||||
11769 | "2048-bit, by steps of 128-bit)"); | ||||
11770 | CGM.getDiags().Report(SLoc, DiagID) << WDS; | ||||
11771 | return; | ||||
11772 | } | ||||
11773 | } | ||||
11774 | |||||
11775 | // Sort out parameter sequence. | ||||
11776 | const std::string ParSeq = mangleVectorParameters(ParamAttrs); | ||||
11777 | StringRef Prefix = "_ZGV"; | ||||
11778 | // Generate simdlen from user input (if any). | ||||
11779 | if (UserVLEN) { | ||||
11780 | if (ISA == 's') { | ||||
11781 | // SVE generates only a masked function. | ||||
11782 | addAArch64VectorName(UserVLEN, "M", Prefix, ISA, ParSeq, MangledName, | ||||
11783 | OutputBecomesInput, Fn); | ||||
11784 | } else { | ||||
11785 | assert(ISA == 'n' && "Expected ISA either 's' or 'n'.")((void)0); | ||||
11786 | // Advanced SIMD generates one or two functions, depending on | ||||
11787 | // the `[not]inbranch` clause. | ||||
11788 | switch (State) { | ||||
11789 | case OMPDeclareSimdDeclAttr::BS_Undefined: | ||||
11790 | addAArch64VectorName(UserVLEN, "N", Prefix, ISA, ParSeq, MangledName, | ||||
11791 | OutputBecomesInput, Fn); | ||||
11792 | addAArch64VectorName(UserVLEN, "M", Prefix, ISA, ParSeq, MangledName, | ||||
11793 | OutputBecomesInput, Fn); | ||||
11794 | break; | ||||
11795 | case OMPDeclareSimdDeclAttr::BS_Notinbranch: | ||||
11796 | addAArch64VectorName(UserVLEN, "N", Prefix, ISA, ParSeq, MangledName, | ||||
11797 | OutputBecomesInput, Fn); | ||||
11798 | break; | ||||
11799 | case OMPDeclareSimdDeclAttr::BS_Inbranch: | ||||
11800 | addAArch64VectorName(UserVLEN, "M", Prefix, ISA, ParSeq, MangledName, | ||||
11801 | OutputBecomesInput, Fn); | ||||
11802 | break; | ||||
11803 | } | ||||
11804 | } | ||||
11805 | } else { | ||||
11806 | // If no user simdlen is provided, follow the AAVFABI rules for | ||||
11807 | // generating the vector length. | ||||
11808 | if (ISA == 's') { | ||||
11809 | // SVE, section 3.4.1, item 1. | ||||
11810 | addAArch64VectorName("x", "M", Prefix, ISA, ParSeq, MangledName, | ||||
11811 | OutputBecomesInput, Fn); | ||||
11812 | } else { | ||||
11813 | assert(ISA == 'n' && "Expected ISA either 's' or 'n'.")((void)0); | ||||
11814 | // Advanced SIMD, Section 3.3.1 of the AAVFABI, generates one or | ||||
11815 | // two vector names depending on the use of the clause | ||||
11816 | // `[not]inbranch`. | ||||
11817 | switch (State) { | ||||
11818 | case OMPDeclareSimdDeclAttr::BS_Undefined: | ||||
11819 | addAArch64AdvSIMDNDSNames(NDS, "N", Prefix, ISA, ParSeq, MangledName, | ||||
11820 | OutputBecomesInput, Fn); | ||||
11821 | addAArch64AdvSIMDNDSNames(NDS, "M", Prefix, ISA, ParSeq, MangledName, | ||||
11822 | OutputBecomesInput, Fn); | ||||
11823 | break; | ||||
11824 | case OMPDeclareSimdDeclAttr::BS_Notinbranch: | ||||
11825 | addAArch64AdvSIMDNDSNames(NDS, "N", Prefix, ISA, ParSeq, MangledName, | ||||
11826 | OutputBecomesInput, Fn); | ||||
11827 | break; | ||||
11828 | case OMPDeclareSimdDeclAttr::BS_Inbranch: | ||||
11829 | addAArch64AdvSIMDNDSNames(NDS, "M", Prefix, ISA, ParSeq, MangledName, | ||||
11830 | OutputBecomesInput, Fn); | ||||
11831 | break; | ||||
11832 | } | ||||
11833 | } | ||||
11834 | } | ||||
11835 | } | ||||
11836 | |||||
11837 | void CGOpenMPRuntime::emitDeclareSimdFunction(const FunctionDecl *FD, | ||||
11838 | llvm::Function *Fn) { | ||||
11839 | ASTContext &C = CGM.getContext(); | ||||
11840 | FD = FD->getMostRecentDecl(); | ||||
11841 | // Map params to their positions in function decl. | ||||
11842 | llvm::DenseMap<const Decl *, unsigned> ParamPositions; | ||||
11843 | if (isa<CXXMethodDecl>(FD)) | ||||
11844 | ParamPositions.try_emplace(FD, 0); | ||||
11845 | unsigned ParamPos = ParamPositions.size(); | ||||
11846 | for (const ParmVarDecl *P : FD->parameters()) { | ||||
11847 | ParamPositions.try_emplace(P->getCanonicalDecl(), ParamPos); | ||||
11848 | ++ParamPos; | ||||
11849 | } | ||||
11850 | while (FD) { | ||||
11851 | for (const auto *Attr : FD->specific_attrs<OMPDeclareSimdDeclAttr>()) { | ||||
11852 | llvm::SmallVector<ParamAttrTy, 8> ParamAttrs(ParamPositions.size()); | ||||
11853 | // Mark uniform parameters. | ||||
11854 | for (const Expr *E : Attr->uniforms()) { | ||||
11855 | E = E->IgnoreParenImpCasts(); | ||||
11856 | unsigned Pos; | ||||
11857 | if (isa<CXXThisExpr>(E)) { | ||||
11858 | Pos = ParamPositions[FD]; | ||||
11859 | } else { | ||||
11860 | const auto *PVD = cast<ParmVarDecl>(cast<DeclRefExpr>(E)->getDecl()) | ||||
11861 | ->getCanonicalDecl(); | ||||
11862 | Pos = ParamPositions[PVD]; | ||||
11863 | } | ||||
11864 | ParamAttrs[Pos].Kind = Uniform; | ||||
11865 | } | ||||
11866 | // Get alignment info. | ||||
11867 | auto NI = Attr->alignments_begin(); | ||||
11868 | for (const Expr *E : Attr->aligneds()) { | ||||
11869 | E = E->IgnoreParenImpCasts(); | ||||
11870 | unsigned Pos; | ||||
11871 | QualType ParmTy; | ||||
11872 | if (isa<CXXThisExpr>(E)) { | ||||
11873 | Pos = ParamPositions[FD]; | ||||
11874 | ParmTy = E->getType(); | ||||
11875 | } else { | ||||
11876 | const auto *PVD = cast<ParmVarDecl>(cast<DeclRefExpr>(E)->getDecl()) | ||||
11877 | ->getCanonicalDecl(); | ||||
11878 | Pos = ParamPositions[PVD]; | ||||
11879 | ParmTy = PVD->getType(); | ||||
11880 | } | ||||
11881 | ParamAttrs[Pos].Alignment = | ||||
11882 | (*NI) | ||||
11883 | ? (*NI)->EvaluateKnownConstInt(C) | ||||
11884 | : llvm::APSInt::getUnsigned( | ||||
11885 | C.toCharUnitsFromBits(C.getOpenMPDefaultSimdAlign(ParmTy)) | ||||
11886 | .getQuantity()); | ||||
11887 | ++NI; | ||||
11888 | } | ||||
11889 | // Mark linear parameters. | ||||
11890 | auto SI = Attr->steps_begin(); | ||||
11891 | auto MI = Attr->modifiers_begin(); | ||||
11892 | for (const Expr *E : Attr->linears()) { | ||||
11893 | E = E->IgnoreParenImpCasts(); | ||||
11894 | unsigned Pos; | ||||
11895 | // Rescaling factor needed to compute the linear parameter | ||||
11896 | // value in the mangled name. | ||||
11897 | unsigned PtrRescalingFactor = 1; | ||||
11898 | if (isa<CXXThisExpr>(E)) { | ||||
11899 | Pos = ParamPositions[FD]; | ||||
11900 | } else { | ||||
11901 | const auto *PVD = cast<ParmVarDecl>(cast<DeclRefExpr>(E)->getDecl()) | ||||
11902 | ->getCanonicalDecl(); | ||||
11903 | Pos = ParamPositions[PVD]; | ||||
11904 | if (auto *P = dyn_cast<PointerType>(PVD->getType())) | ||||
11905 | PtrRescalingFactor = CGM.getContext() | ||||
11906 | .getTypeSizeInChars(P->getPointeeType()) | ||||
11907 | .getQuantity(); | ||||
11908 | } | ||||
11909 | ParamAttrTy &ParamAttr = ParamAttrs[Pos]; | ||||
11910 | ParamAttr.Kind = Linear; | ||||
11911 | // Assuming a stride of 1, for `linear` without modifiers. | ||||
11912 | ParamAttr.StrideOrArg = llvm::APSInt::getUnsigned(1); | ||||
11913 | if (*SI) { | ||||
11914 | Expr::EvalResult Result; | ||||
11915 | if (!(*SI)->EvaluateAsInt(Result, C, Expr::SE_AllowSideEffects)) { | ||||
11916 | if (const auto *DRE = | ||||
11917 | cast<DeclRefExpr>((*SI)->IgnoreParenImpCasts())) { | ||||
11918 | if (const auto *StridePVD = cast<ParmVarDecl>(DRE->getDecl())) { | ||||
11919 | ParamAttr.Kind = LinearWithVarStride; | ||||
11920 | ParamAttr.StrideOrArg = llvm::APSInt::getUnsigned( | ||||
11921 | ParamPositions[StridePVD->getCanonicalDecl()]); | ||||
11922 | } | ||||
11923 | } | ||||
11924 | } else { | ||||
11925 | ParamAttr.StrideOrArg = Result.Val.getInt(); | ||||
11926 | } | ||||
11927 | } | ||||
11928 | // If we are using a linear clause on a pointer, we need to | ||||
11929 | // rescale the value of linear_step with the byte size of the | ||||
11930 | // pointee type. | ||||
11931 | if (Linear == ParamAttr.Kind) | ||||
11932 | ParamAttr.StrideOrArg = ParamAttr.StrideOrArg * PtrRescalingFactor; | ||||
11933 | ++SI; | ||||
11934 | ++MI; | ||||
11935 | } | ||||
11936 | llvm::APSInt VLENVal; | ||||
11937 | SourceLocation ExprLoc; | ||||
11938 | const Expr *VLENExpr = Attr->getSimdlen(); | ||||
11939 | if (VLENExpr) { | ||||
11940 | VLENVal = VLENExpr->EvaluateKnownConstInt(C); | ||||
11941 | ExprLoc = VLENExpr->getExprLoc(); | ||||
11942 | } | ||||
11943 | OMPDeclareSimdDeclAttr::BranchStateTy State = Attr->getBranchState(); | ||||
11944 | if (CGM.getTriple().isX86()) { | ||||
11945 | emitX86DeclareSimdFunction(FD, Fn, VLENVal, ParamAttrs, State); | ||||
11946 | } else if (CGM.getTriple().getArch() == llvm::Triple::aarch64) { | ||||
11947 | unsigned VLEN = VLENVal.getExtValue(); | ||||
11948 | StringRef MangledName = Fn->getName(); | ||||
11949 | if (CGM.getTarget().hasFeature("sve")) | ||||
11950 | emitAArch64DeclareSimdFunction(CGM, FD, VLEN, ParamAttrs, State, | ||||
11951 | MangledName, 's', 128, Fn, ExprLoc); | ||||
11952 | if (CGM.getTarget().hasFeature("neon")) | ||||
11953 | emitAArch64DeclareSimdFunction(CGM, FD, VLEN, ParamAttrs, State, | ||||
11954 | MangledName, 'n', 128, Fn, ExprLoc); | ||||
11955 | } | ||||
11956 | } | ||||
11957 | FD = FD->getPreviousDecl(); | ||||
11958 | } | ||||
11959 | } | ||||
11960 | |||||
11961 | namespace { | ||||
11962 | /// Cleanup action for doacross support. | ||||
11963 | class DoacrossCleanupTy final : public EHScopeStack::Cleanup { | ||||
11964 | public: | ||||
11965 | static const int DoacrossFinArgs = 2; | ||||
11966 | |||||
11967 | private: | ||||
11968 | llvm::FunctionCallee RTLFn; | ||||
11969 | llvm::Value *Args[DoacrossFinArgs]; | ||||
11970 | |||||
11971 | public: | ||||
11972 | DoacrossCleanupTy(llvm::FunctionCallee RTLFn, | ||||
11973 | ArrayRef<llvm::Value *> CallArgs) | ||||
11974 | : RTLFn(RTLFn) { | ||||
11975 | assert(CallArgs.size() == DoacrossFinArgs)((void)0); | ||||
11976 | std::copy(CallArgs.begin(), CallArgs.end(), std::begin(Args)); | ||||
11977 | } | ||||
11978 | void Emit(CodeGenFunction &CGF, Flags /*flags*/) override { | ||||
11979 | if (!CGF.HaveInsertPoint()) | ||||
11980 | return; | ||||
11981 | CGF.EmitRuntimeCall(RTLFn, Args); | ||||
11982 | } | ||||
11983 | }; | ||||
11984 | } // namespace | ||||
11985 | |||||
11986 | void CGOpenMPRuntime::emitDoacrossInit(CodeGenFunction &CGF, | ||||
11987 | const OMPLoopDirective &D, | ||||
11988 | ArrayRef<Expr *> NumIterations) { | ||||
11989 | if (!CGF.HaveInsertPoint()) | ||||
11990 | return; | ||||
11991 | |||||
11992 | ASTContext &C = CGM.getContext(); | ||||
11993 | QualType Int64Ty = C.getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/true); | ||||
11994 | RecordDecl *RD; | ||||
11995 | if (KmpDimTy.isNull()) { | ||||
11996 | // Build struct kmp_dim { // loop bounds info casted to kmp_int64 | ||||
11997 | // kmp_int64 lo; // lower | ||||
11998 | // kmp_int64 up; // upper | ||||
11999 | // kmp_int64 st; // stride | ||||
12000 | // }; | ||||
12001 | RD = C.buildImplicitRecord("kmp_dim"); | ||||
12002 | RD->startDefinition(); | ||||
12003 | addFieldToRecordDecl(C, RD, Int64Ty); | ||||
12004 | addFieldToRecordDecl(C, RD, Int64Ty); | ||||
12005 | addFieldToRecordDecl(C, RD, Int64Ty); | ||||
12006 | RD->completeDefinition(); | ||||
12007 | KmpDimTy = C.getRecordType(RD); | ||||
12008 | } else { | ||||
12009 | RD = cast<RecordDecl>(KmpDimTy->getAsTagDecl()); | ||||
12010 | } | ||||
12011 | llvm::APInt Size(/*numBits=*/32, NumIterations.size()); | ||||
12012 | QualType ArrayTy = | ||||
12013 | C.getConstantArrayType(KmpDimTy, Size, nullptr, ArrayType::Normal, 0); | ||||
12014 | |||||
12015 | Address DimsAddr = CGF.CreateMemTemp(ArrayTy, "dims"); | ||||
12016 | CGF.EmitNullInitialization(DimsAddr, ArrayTy); | ||||
12017 | enum { LowerFD = 0, UpperFD, StrideFD }; | ||||
12018 | // Fill dims with data. | ||||
12019 | for (unsigned I = 0, E = NumIterations.size(); I < E; ++I) { | ||||
12020 | LValue DimsLVal = CGF.MakeAddrLValue( | ||||
12021 | CGF.Builder.CreateConstArrayGEP(DimsAddr, I), KmpDimTy); | ||||
12022 | // dims.upper = num_iterations; | ||||
12023 | LValue UpperLVal = CGF.EmitLValueForField( | ||||
12024 | DimsLVal, *std::next(RD->field_begin(), UpperFD)); | ||||
12025 | llvm::Value *NumIterVal = CGF.EmitScalarConversion( | ||||
12026 | CGF.EmitScalarExpr(NumIterations[I]), NumIterations[I]->getType(), | ||||
12027 | Int64Ty, NumIterations[I]->getExprLoc()); | ||||
12028 | CGF.EmitStoreOfScalar(NumIterVal, UpperLVal); | ||||
12029 | // dims.stride = 1; | ||||
12030 | LValue StrideLVal = CGF.EmitLValueForField( | ||||
12031 | DimsLVal, *std::next(RD->field_begin(), StrideFD)); | ||||
12032 | CGF.EmitStoreOfScalar(llvm::ConstantInt::getSigned(CGM.Int64Ty, /*V=*/1), | ||||
12033 | StrideLVal); | ||||
12034 | } | ||||
12035 | |||||
12036 | // Build call void __kmpc_doacross_init(ident_t *loc, kmp_int32 gtid, | ||||
12037 | // kmp_int32 num_dims, struct kmp_dim * dims); | ||||
12038 | llvm::Value *Args[] = { | ||||
12039 | emitUpdateLocation(CGF, D.getBeginLoc()), | ||||
12040 | getThreadID(CGF, D.getBeginLoc()), | ||||
12041 | llvm::ConstantInt::getSigned(CGM.Int32Ty, NumIterations.size()), | ||||
12042 | CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
12043 | CGF.Builder.CreateConstArrayGEP(DimsAddr, 0).getPointer(), | ||||
12044 | CGM.VoidPtrTy)}; | ||||
12045 | |||||
12046 | llvm::FunctionCallee RTLFn = OMPBuilder.getOrCreateRuntimeFunction( | ||||
12047 | CGM.getModule(), OMPRTL___kmpc_doacross_init); | ||||
12048 | CGF.EmitRuntimeCall(RTLFn, Args); | ||||
12049 | llvm::Value *FiniArgs[DoacrossCleanupTy::DoacrossFinArgs] = { | ||||
12050 | emitUpdateLocation(CGF, D.getEndLoc()), getThreadID(CGF, D.getEndLoc())}; | ||||
12051 | llvm::FunctionCallee FiniRTLFn = OMPBuilder.getOrCreateRuntimeFunction( | ||||
12052 | CGM.getModule(), OMPRTL___kmpc_doacross_fini); | ||||
12053 | CGF.EHStack.pushCleanup<DoacrossCleanupTy>(NormalAndEHCleanup, FiniRTLFn, | ||||
12054 | llvm::makeArrayRef(FiniArgs)); | ||||
12055 | } | ||||
12056 | |||||
12057 | void CGOpenMPRuntime::emitDoacrossOrdered(CodeGenFunction &CGF, | ||||
12058 | const OMPDependClause *C) { | ||||
12059 | QualType Int64Ty = | ||||
12060 | CGM.getContext().getIntTypeForBitwidth(/*DestWidth=*/64, /*Signed=*/1); | ||||
12061 | llvm::APInt Size(/*numBits=*/32, C->getNumLoops()); | ||||
12062 | QualType ArrayTy = CGM.getContext().getConstantArrayType( | ||||
12063 | Int64Ty, Size, nullptr, ArrayType::Normal, 0); | ||||
12064 | Address CntAddr = CGF.CreateMemTemp(ArrayTy, ".cnt.addr"); | ||||
12065 | for (unsigned I = 0, E = C->getNumLoops(); I < E; ++I) { | ||||
12066 | const Expr *CounterVal = C->getLoopData(I); | ||||
12067 | assert(CounterVal)((void)0); | ||||
12068 | llvm::Value *CntVal = CGF.EmitScalarConversion( | ||||
12069 | CGF.EmitScalarExpr(CounterVal), CounterVal->getType(), Int64Ty, | ||||
12070 | CounterVal->getExprLoc()); | ||||
12071 | CGF.EmitStoreOfScalar(CntVal, CGF.Builder.CreateConstArrayGEP(CntAddr, I), | ||||
12072 | /*Volatile=*/false, Int64Ty); | ||||
12073 | } | ||||
12074 | llvm::Value *Args[] = { | ||||
12075 | emitUpdateLocation(CGF, C->getBeginLoc()), | ||||
12076 | getThreadID(CGF, C->getBeginLoc()), | ||||
12077 | CGF.Builder.CreateConstArrayGEP(CntAddr, 0).getPointer()}; | ||||
12078 | llvm::FunctionCallee RTLFn; | ||||
12079 | if (C->getDependencyKind() == OMPC_DEPEND_source) { | ||||
12080 | RTLFn = OMPBuilder.getOrCreateRuntimeFunction(CGM.getModule(), | ||||
12081 | OMPRTL___kmpc_doacross_post); | ||||
12082 | } else { | ||||
12083 | assert(C->getDependencyKind() == OMPC_DEPEND_sink)((void)0); | ||||
12084 | RTLFn = OMPBuilder.getOrCreateRuntimeFunction(CGM.getModule(), | ||||
12085 | OMPRTL___kmpc_doacross_wait); | ||||
12086 | } | ||||
12087 | CGF.EmitRuntimeCall(RTLFn, Args); | ||||
12088 | } | ||||
12089 | |||||
12090 | void CGOpenMPRuntime::emitCall(CodeGenFunction &CGF, SourceLocation Loc, | ||||
12091 | llvm::FunctionCallee Callee, | ||||
12092 | ArrayRef<llvm::Value *> Args) const { | ||||
12093 | assert(Loc.isValid() && "Outlined function call location must be valid.")((void)0); | ||||
12094 | auto DL = ApplyDebugLocation::CreateDefaultArtificial(CGF, Loc); | ||||
12095 | |||||
12096 | if (auto *Fn = dyn_cast<llvm::Function>(Callee.getCallee())) { | ||||
12097 | if (Fn->doesNotThrow()) { | ||||
12098 | CGF.EmitNounwindRuntimeCall(Fn, Args); | ||||
12099 | return; | ||||
12100 | } | ||||
12101 | } | ||||
12102 | CGF.EmitRuntimeCall(Callee, Args); | ||||
12103 | } | ||||
12104 | |||||
12105 | void CGOpenMPRuntime::emitOutlinedFunctionCall( | ||||
12106 | CodeGenFunction &CGF, SourceLocation Loc, llvm::FunctionCallee OutlinedFn, | ||||
12107 | ArrayRef<llvm::Value *> Args) const { | ||||
12108 | emitCall(CGF, Loc, OutlinedFn, Args); | ||||
12109 | } | ||||
12110 | |||||
12111 | void CGOpenMPRuntime::emitFunctionProlog(CodeGenFunction &CGF, const Decl *D) { | ||||
12112 | if (const auto *FD = dyn_cast<FunctionDecl>(D)) | ||||
12113 | if (OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(FD)) | ||||
12114 | HasEmittedDeclareTargetRegion = true; | ||||
12115 | } | ||||
12116 | |||||
12117 | Address CGOpenMPRuntime::getParameterAddress(CodeGenFunction &CGF, | ||||
12118 | const VarDecl *NativeParam, | ||||
12119 | const VarDecl *TargetParam) const { | ||||
12120 | return CGF.GetAddrOfLocalVar(NativeParam); | ||||
12121 | } | ||||
12122 | |||||
12123 | Address CGOpenMPRuntime::getAddressOfLocalVariable(CodeGenFunction &CGF, | ||||
12124 | const VarDecl *VD) { | ||||
12125 | if (!VD) | ||||
12126 | return Address::invalid(); | ||||
12127 | Address UntiedAddr = Address::invalid(); | ||||
12128 | Address UntiedRealAddr = Address::invalid(); | ||||
12129 | auto It = FunctionToUntiedTaskStackMap.find(CGF.CurFn); | ||||
12130 | if (It != FunctionToUntiedTaskStackMap.end()) { | ||||
12131 | const UntiedLocalVarsAddressesMap &UntiedData = | ||||
12132 | UntiedLocalVarsStack[It->second]; | ||||
12133 | auto I = UntiedData.find(VD); | ||||
12134 | if (I != UntiedData.end()) { | ||||
12135 | UntiedAddr = I->second.first; | ||||
12136 | UntiedRealAddr = I->second.second; | ||||
12137 | } | ||||
12138 | } | ||||
12139 | const VarDecl *CVD = VD->getCanonicalDecl(); | ||||
12140 | if (CVD->hasAttr<OMPAllocateDeclAttr>()) { | ||||
12141 | // Use the default allocation. | ||||
12142 | if (!isAllocatableDecl(VD)) | ||||
12143 | return UntiedAddr; | ||||
12144 | llvm::Value *Size; | ||||
12145 | CharUnits Align = CGM.getContext().getDeclAlign(CVD); | ||||
12146 | if (CVD->getType()->isVariablyModifiedType()) { | ||||
12147 | Size = CGF.getTypeSize(CVD->getType()); | ||||
12148 | // Align the size: ((size + align - 1) / align) * align | ||||
12149 | Size = CGF.Builder.CreateNUWAdd( | ||||
12150 | Size, CGM.getSize(Align - CharUnits::fromQuantity(1))); | ||||
12151 | Size = CGF.Builder.CreateUDiv(Size, CGM.getSize(Align)); | ||||
12152 | Size = CGF.Builder.CreateNUWMul(Size, CGM.getSize(Align)); | ||||
12153 | } else { | ||||
12154 | CharUnits Sz = CGM.getContext().getTypeSizeInChars(CVD->getType()); | ||||
12155 | Size = CGM.getSize(Sz.alignTo(Align)); | ||||
12156 | } | ||||
12157 | llvm::Value *ThreadID = getThreadID(CGF, CVD->getBeginLoc()); | ||||
12158 | const auto *AA = CVD->getAttr<OMPAllocateDeclAttr>(); | ||||
12159 | assert(AA->getAllocator() &&((void)0) | ||||
12160 | "Expected allocator expression for non-default allocator.")((void)0); | ||||
12161 | llvm::Value *Allocator = CGF.EmitScalarExpr(AA->getAllocator()); | ||||
12162 | // According to the standard, the original allocator type is a enum | ||||
12163 | // (integer). Convert to pointer type, if required. | ||||
12164 | Allocator = CGF.EmitScalarConversion( | ||||
12165 | Allocator, AA->getAllocator()->getType(), CGF.getContext().VoidPtrTy, | ||||
12166 | AA->getAllocator()->getExprLoc()); | ||||
12167 | llvm::Value *Args[] = {ThreadID, Size, Allocator}; | ||||
12168 | |||||
12169 | llvm::Value *Addr = | ||||
12170 | CGF.EmitRuntimeCall(OMPBuilder.getOrCreateRuntimeFunction( | ||||
12171 | CGM.getModule(), OMPRTL___kmpc_alloc), | ||||
12172 | Args, getName({CVD->getName(), ".void.addr"})); | ||||
12173 | llvm::FunctionCallee FiniRTLFn = OMPBuilder.getOrCreateRuntimeFunction( | ||||
12174 | CGM.getModule(), OMPRTL___kmpc_free); | ||||
12175 | QualType Ty = CGM.getContext().getPointerType(CVD->getType()); | ||||
12176 | Addr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
12177 | Addr, CGF.ConvertTypeForMem(Ty), getName({CVD->getName(), ".addr"})); | ||||
12178 | if (UntiedAddr.isValid()) | ||||
12179 | CGF.EmitStoreOfScalar(Addr, UntiedAddr, /*Volatile=*/false, Ty); | ||||
12180 | |||||
12181 | // Cleanup action for allocate support. | ||||
12182 | class OMPAllocateCleanupTy final : public EHScopeStack::Cleanup { | ||||
12183 | llvm::FunctionCallee RTLFn; | ||||
12184 | SourceLocation::UIntTy LocEncoding; | ||||
12185 | Address Addr; | ||||
12186 | const Expr *Allocator; | ||||
12187 | |||||
12188 | public: | ||||
12189 | OMPAllocateCleanupTy(llvm::FunctionCallee RTLFn, | ||||
12190 | SourceLocation::UIntTy LocEncoding, Address Addr, | ||||
12191 | const Expr *Allocator) | ||||
12192 | : RTLFn(RTLFn), LocEncoding(LocEncoding), Addr(Addr), | ||||
12193 | Allocator(Allocator) {} | ||||
12194 | void Emit(CodeGenFunction &CGF, Flags /*flags*/) override { | ||||
12195 | if (!CGF.HaveInsertPoint()) | ||||
12196 | return; | ||||
12197 | llvm::Value *Args[3]; | ||||
12198 | Args[0] = CGF.CGM.getOpenMPRuntime().getThreadID( | ||||
12199 | CGF, SourceLocation::getFromRawEncoding(LocEncoding)); | ||||
12200 | Args[1] = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
12201 | Addr.getPointer(), CGF.VoidPtrTy); | ||||
12202 | llvm::Value *AllocVal = CGF.EmitScalarExpr(Allocator); | ||||
12203 | // According to the standard, the original allocator type is a enum | ||||
12204 | // (integer). Convert to pointer type, if required. | ||||
12205 | AllocVal = CGF.EmitScalarConversion(AllocVal, Allocator->getType(), | ||||
12206 | CGF.getContext().VoidPtrTy, | ||||
12207 | Allocator->getExprLoc()); | ||||
12208 | Args[2] = AllocVal; | ||||
12209 | |||||
12210 | CGF.EmitRuntimeCall(RTLFn, Args); | ||||
12211 | } | ||||
12212 | }; | ||||
12213 | Address VDAddr = | ||||
12214 | UntiedRealAddr.isValid() ? UntiedRealAddr : Address(Addr, Align); | ||||
12215 | CGF.EHStack.pushCleanup<OMPAllocateCleanupTy>( | ||||
12216 | NormalAndEHCleanup, FiniRTLFn, CVD->getLocation().getRawEncoding(), | ||||
12217 | VDAddr, AA->getAllocator()); | ||||
12218 | if (UntiedRealAddr.isValid()) | ||||
12219 | if (auto *Region = | ||||
12220 | dyn_cast_or_null<CGOpenMPRegionInfo>(CGF.CapturedStmtInfo)) | ||||
12221 | Region->emitUntiedSwitch(CGF); | ||||
12222 | return VDAddr; | ||||
12223 | } | ||||
12224 | return UntiedAddr; | ||||
12225 | } | ||||
12226 | |||||
12227 | bool CGOpenMPRuntime::isLocalVarInUntiedTask(CodeGenFunction &CGF, | ||||
12228 | const VarDecl *VD) const { | ||||
12229 | auto It = FunctionToUntiedTaskStackMap.find(CGF.CurFn); | ||||
12230 | if (It == FunctionToUntiedTaskStackMap.end()) | ||||
12231 | return false; | ||||
12232 | return UntiedLocalVarsStack[It->second].count(VD) > 0; | ||||
12233 | } | ||||
12234 | |||||
12235 | CGOpenMPRuntime::NontemporalDeclsRAII::NontemporalDeclsRAII( | ||||
12236 | CodeGenModule &CGM, const OMPLoopDirective &S) | ||||
12237 | : CGM(CGM), NeedToPush(S.hasClausesOfKind<OMPNontemporalClause>()) { | ||||
12238 | assert(CGM.getLangOpts().OpenMP && "Not in OpenMP mode.")((void)0); | ||||
12239 | if (!NeedToPush) | ||||
12240 | return; | ||||
12241 | NontemporalDeclsSet &DS = | ||||
12242 | CGM.getOpenMPRuntime().NontemporalDeclsStack.emplace_back(); | ||||
12243 | for (const auto *C : S.getClausesOfKind<OMPNontemporalClause>()) { | ||||
12244 | for (const Stmt *Ref : C->private_refs()) { | ||||
12245 | const auto *SimpleRefExpr = cast<Expr>(Ref)->IgnoreParenImpCasts(); | ||||
12246 | const ValueDecl *VD; | ||||
12247 | if (const auto *DRE = dyn_cast<DeclRefExpr>(SimpleRefExpr)) { | ||||
12248 | VD = DRE->getDecl(); | ||||
12249 | } else { | ||||
12250 | const auto *ME = cast<MemberExpr>(SimpleRefExpr); | ||||
12251 | assert((ME->isImplicitCXXThis() ||((void)0) | ||||
12252 | isa<CXXThisExpr>(ME->getBase()->IgnoreParenImpCasts())) &&((void)0) | ||||
12253 | "Expected member of current class.")((void)0); | ||||
12254 | VD = ME->getMemberDecl(); | ||||
12255 | } | ||||
12256 | DS.insert(VD); | ||||
12257 | } | ||||
12258 | } | ||||
12259 | } | ||||
12260 | |||||
12261 | CGOpenMPRuntime::NontemporalDeclsRAII::~NontemporalDeclsRAII() { | ||||
12262 | if (!NeedToPush) | ||||
12263 | return; | ||||
12264 | CGM.getOpenMPRuntime().NontemporalDeclsStack.pop_back(); | ||||
12265 | } | ||||
12266 | |||||
12267 | CGOpenMPRuntime::UntiedTaskLocalDeclsRAII::UntiedTaskLocalDeclsRAII( | ||||
12268 | CodeGenFunction &CGF, | ||||
12269 | const llvm::MapVector<CanonicalDeclPtr<const VarDecl>, | ||||
12270 | std::pair<Address, Address>> &LocalVars) | ||||
12271 | : CGM(CGF.CGM), NeedToPush(!LocalVars.empty()) { | ||||
12272 | if (!NeedToPush) | ||||
12273 | return; | ||||
12274 | CGM.getOpenMPRuntime().FunctionToUntiedTaskStackMap.try_emplace( | ||||
12275 | CGF.CurFn, CGM.getOpenMPRuntime().UntiedLocalVarsStack.size()); | ||||
12276 | CGM.getOpenMPRuntime().UntiedLocalVarsStack.push_back(LocalVars); | ||||
12277 | } | ||||
12278 | |||||
12279 | CGOpenMPRuntime::UntiedTaskLocalDeclsRAII::~UntiedTaskLocalDeclsRAII() { | ||||
12280 | if (!NeedToPush) | ||||
12281 | return; | ||||
12282 | CGM.getOpenMPRuntime().UntiedLocalVarsStack.pop_back(); | ||||
12283 | } | ||||
12284 | |||||
12285 | bool CGOpenMPRuntime::isNontemporalDecl(const ValueDecl *VD) const { | ||||
12286 | assert(CGM.getLangOpts().OpenMP && "Not in OpenMP mode.")((void)0); | ||||
12287 | |||||
12288 | return llvm::any_of( | ||||
12289 | CGM.getOpenMPRuntime().NontemporalDeclsStack, | ||||
12290 | [VD](const NontemporalDeclsSet &Set) { return Set.count(VD) > 0; }); | ||||
12291 | } | ||||
12292 | |||||
12293 | void CGOpenMPRuntime::LastprivateConditionalRAII::tryToDisableInnerAnalysis( | ||||
12294 | const OMPExecutableDirective &S, | ||||
12295 | llvm::DenseSet<CanonicalDeclPtr<const Decl>> &NeedToAddForLPCsAsDisabled) | ||||
12296 | const { | ||||
12297 | llvm::DenseSet<CanonicalDeclPtr<const Decl>> NeedToCheckForLPCs; | ||||
12298 | // Vars in target/task regions must be excluded completely. | ||||
12299 | if (isOpenMPTargetExecutionDirective(S.getDirectiveKind()) || | ||||
12300 | isOpenMPTaskingDirective(S.getDirectiveKind())) { | ||||
12301 | SmallVector<OpenMPDirectiveKind, 4> CaptureRegions; | ||||
12302 | getOpenMPCaptureRegions(CaptureRegions, S.getDirectiveKind()); | ||||
12303 | const CapturedStmt *CS = S.getCapturedStmt(CaptureRegions.front()); | ||||
12304 | for (const CapturedStmt::Capture &Cap : CS->captures()) { | ||||
12305 | if (Cap.capturesVariable() || Cap.capturesVariableByCopy()) | ||||
12306 | NeedToCheckForLPCs.insert(Cap.getCapturedVar()); | ||||
12307 | } | ||||
12308 | } | ||||
12309 | // Exclude vars in private clauses. | ||||
12310 | for (const auto *C : S.getClausesOfKind<OMPPrivateClause>()) { | ||||
12311 | for (const Expr *Ref : C->varlists()) { | ||||
12312 | if (!Ref->getType()->isScalarType()) | ||||
12313 | continue; | ||||
12314 | const auto *DRE = dyn_cast<DeclRefExpr>(Ref->IgnoreParenImpCasts()); | ||||
12315 | if (!DRE) | ||||
12316 | continue; | ||||
12317 | NeedToCheckForLPCs.insert(DRE->getDecl()); | ||||
12318 | } | ||||
12319 | } | ||||
12320 | for (const auto *C : S.getClausesOfKind<OMPFirstprivateClause>()) { | ||||
12321 | for (const Expr *Ref : C->varlists()) { | ||||
12322 | if (!Ref->getType()->isScalarType()) | ||||
12323 | continue; | ||||
12324 | const auto *DRE = dyn_cast<DeclRefExpr>(Ref->IgnoreParenImpCasts()); | ||||
12325 | if (!DRE) | ||||
12326 | continue; | ||||
12327 | NeedToCheckForLPCs.insert(DRE->getDecl()); | ||||
12328 | } | ||||
12329 | } | ||||
12330 | for (const auto *C : S.getClausesOfKind<OMPLastprivateClause>()) { | ||||
12331 | for (const Expr *Ref : C->varlists()) { | ||||
12332 | if (!Ref->getType()->isScalarType()) | ||||
12333 | continue; | ||||
12334 | const auto *DRE = dyn_cast<DeclRefExpr>(Ref->IgnoreParenImpCasts()); | ||||
12335 | if (!DRE) | ||||
12336 | continue; | ||||
12337 | NeedToCheckForLPCs.insert(DRE->getDecl()); | ||||
12338 | } | ||||
12339 | } | ||||
12340 | for (const auto *C : S.getClausesOfKind<OMPReductionClause>()) { | ||||
12341 | for (const Expr *Ref : C->varlists()) { | ||||
12342 | if (!Ref->getType()->isScalarType()) | ||||
12343 | continue; | ||||
12344 | const auto *DRE = dyn_cast<DeclRefExpr>(Ref->IgnoreParenImpCasts()); | ||||
12345 | if (!DRE) | ||||
12346 | continue; | ||||
12347 | NeedToCheckForLPCs.insert(DRE->getDecl()); | ||||
12348 | } | ||||
12349 | } | ||||
12350 | for (const auto *C : S.getClausesOfKind<OMPLinearClause>()) { | ||||
12351 | for (const Expr *Ref : C->varlists()) { | ||||
12352 | if (!Ref->getType()->isScalarType()) | ||||
12353 | continue; | ||||
12354 | const auto *DRE = dyn_cast<DeclRefExpr>(Ref->IgnoreParenImpCasts()); | ||||
12355 | if (!DRE) | ||||
12356 | continue; | ||||
12357 | NeedToCheckForLPCs.insert(DRE->getDecl()); | ||||
12358 | } | ||||
12359 | } | ||||
12360 | for (const Decl *VD : NeedToCheckForLPCs) { | ||||
12361 | for (const LastprivateConditionalData &Data : | ||||
12362 | llvm::reverse(CGM.getOpenMPRuntime().LastprivateConditionalStack)) { | ||||
12363 | if (Data.DeclToUniqueName.count(VD) > 0) { | ||||
12364 | if (!Data.Disabled) | ||||
12365 | NeedToAddForLPCsAsDisabled.insert(VD); | ||||
12366 | break; | ||||
12367 | } | ||||
12368 | } | ||||
12369 | } | ||||
12370 | } | ||||
12371 | |||||
12372 | CGOpenMPRuntime::LastprivateConditionalRAII::LastprivateConditionalRAII( | ||||
12373 | CodeGenFunction &CGF, const OMPExecutableDirective &S, LValue IVLVal) | ||||
12374 | : CGM(CGF.CGM), | ||||
12375 | Action((CGM.getLangOpts().OpenMP >= 50 && | ||||
12376 | llvm::any_of(S.getClausesOfKind<OMPLastprivateClause>(), | ||||
12377 | [](const OMPLastprivateClause *C) { | ||||
12378 | return C->getKind() == | ||||
12379 | OMPC_LASTPRIVATE_conditional; | ||||
12380 | })) | ||||
12381 | ? ActionToDo::PushAsLastprivateConditional | ||||
12382 | : ActionToDo::DoNotPush) { | ||||
12383 | assert(CGM.getLangOpts().OpenMP && "Not in OpenMP mode.")((void)0); | ||||
12384 | if (CGM.getLangOpts().OpenMP < 50 || Action == ActionToDo::DoNotPush) | ||||
12385 | return; | ||||
12386 | assert(Action == ActionToDo::PushAsLastprivateConditional &&((void)0) | ||||
12387 | "Expected a push action.")((void)0); | ||||
12388 | LastprivateConditionalData &Data = | ||||
12389 | CGM.getOpenMPRuntime().LastprivateConditionalStack.emplace_back(); | ||||
12390 | for (const auto *C : S.getClausesOfKind<OMPLastprivateClause>()) { | ||||
12391 | if (C->getKind() != OMPC_LASTPRIVATE_conditional) | ||||
12392 | continue; | ||||
12393 | |||||
12394 | for (const Expr *Ref : C->varlists()) { | ||||
12395 | Data.DeclToUniqueName.insert(std::make_pair( | ||||
12396 | cast<DeclRefExpr>(Ref->IgnoreParenImpCasts())->getDecl(), | ||||
12397 | SmallString<16>(generateUniqueName(CGM, "pl_cond", Ref)))); | ||||
12398 | } | ||||
12399 | } | ||||
12400 | Data.IVLVal = IVLVal; | ||||
12401 | Data.Fn = CGF.CurFn; | ||||
12402 | } | ||||
12403 | |||||
12404 | CGOpenMPRuntime::LastprivateConditionalRAII::LastprivateConditionalRAII( | ||||
12405 | CodeGenFunction &CGF, const OMPExecutableDirective &S) | ||||
12406 | : CGM(CGF.CGM), Action(ActionToDo::DoNotPush) { | ||||
12407 | assert(CGM.getLangOpts().OpenMP && "Not in OpenMP mode.")((void)0); | ||||
12408 | if (CGM.getLangOpts().OpenMP < 50) | ||||
12409 | return; | ||||
12410 | llvm::DenseSet<CanonicalDeclPtr<const Decl>> NeedToAddForLPCsAsDisabled; | ||||
12411 | tryToDisableInnerAnalysis(S, NeedToAddForLPCsAsDisabled); | ||||
12412 | if (!NeedToAddForLPCsAsDisabled.empty()) { | ||||
12413 | Action = ActionToDo::DisableLastprivateConditional; | ||||
12414 | LastprivateConditionalData &Data = | ||||
12415 | CGM.getOpenMPRuntime().LastprivateConditionalStack.emplace_back(); | ||||
12416 | for (const Decl *VD : NeedToAddForLPCsAsDisabled) | ||||
12417 | Data.DeclToUniqueName.insert(std::make_pair(VD, SmallString<16>())); | ||||
12418 | Data.Fn = CGF.CurFn; | ||||
12419 | Data.Disabled = true; | ||||
12420 | } | ||||
12421 | } | ||||
12422 | |||||
12423 | CGOpenMPRuntime::LastprivateConditionalRAII | ||||
12424 | CGOpenMPRuntime::LastprivateConditionalRAII::disable( | ||||
12425 | CodeGenFunction &CGF, const OMPExecutableDirective &S) { | ||||
12426 | return LastprivateConditionalRAII(CGF, S); | ||||
12427 | } | ||||
12428 | |||||
12429 | CGOpenMPRuntime::LastprivateConditionalRAII::~LastprivateConditionalRAII() { | ||||
12430 | if (CGM.getLangOpts().OpenMP < 50) | ||||
12431 | return; | ||||
12432 | if (Action == ActionToDo::DisableLastprivateConditional) { | ||||
12433 | assert(CGM.getOpenMPRuntime().LastprivateConditionalStack.back().Disabled &&((void)0) | ||||
12434 | "Expected list of disabled private vars.")((void)0); | ||||
12435 | CGM.getOpenMPRuntime().LastprivateConditionalStack.pop_back(); | ||||
12436 | } | ||||
12437 | if (Action == ActionToDo::PushAsLastprivateConditional) { | ||||
12438 | assert(((void)0) | ||||
12439 | !CGM.getOpenMPRuntime().LastprivateConditionalStack.back().Disabled &&((void)0) | ||||
12440 | "Expected list of lastprivate conditional vars.")((void)0); | ||||
12441 | CGM.getOpenMPRuntime().LastprivateConditionalStack.pop_back(); | ||||
12442 | } | ||||
12443 | } | ||||
12444 | |||||
12445 | Address CGOpenMPRuntime::emitLastprivateConditionalInit(CodeGenFunction &CGF, | ||||
12446 | const VarDecl *VD) { | ||||
12447 | ASTContext &C = CGM.getContext(); | ||||
12448 | auto I = LastprivateConditionalToTypes.find(CGF.CurFn); | ||||
12449 | if (I == LastprivateConditionalToTypes.end()) | ||||
12450 | I = LastprivateConditionalToTypes.try_emplace(CGF.CurFn).first; | ||||
12451 | QualType NewType; | ||||
12452 | const FieldDecl *VDField; | ||||
12453 | const FieldDecl *FiredField; | ||||
12454 | LValue BaseLVal; | ||||
12455 | auto VI = I->getSecond().find(VD); | ||||
12456 | if (VI == I->getSecond().end()) { | ||||
12457 | RecordDecl *RD = C.buildImplicitRecord("lasprivate.conditional"); | ||||
12458 | RD->startDefinition(); | ||||
12459 | VDField = addFieldToRecordDecl(C, RD, VD->getType().getNonReferenceType()); | ||||
12460 | FiredField = addFieldToRecordDecl(C, RD, C.CharTy); | ||||
12461 | RD->completeDefinition(); | ||||
12462 | NewType = C.getRecordType(RD); | ||||
12463 | Address Addr = CGF.CreateMemTemp(NewType, C.getDeclAlign(VD), VD->getName()); | ||||
12464 | BaseLVal = CGF.MakeAddrLValue(Addr, NewType, AlignmentSource::Decl); | ||||
12465 | I->getSecond().try_emplace(VD, NewType, VDField, FiredField, BaseLVal); | ||||
12466 | } else { | ||||
12467 | NewType = std::get<0>(VI->getSecond()); | ||||
12468 | VDField = std::get<1>(VI->getSecond()); | ||||
12469 | FiredField = std::get<2>(VI->getSecond()); | ||||
12470 | BaseLVal = std::get<3>(VI->getSecond()); | ||||
12471 | } | ||||
12472 | LValue FiredLVal = | ||||
12473 | CGF.EmitLValueForField(BaseLVal, FiredField); | ||||
12474 | CGF.EmitStoreOfScalar( | ||||
12475 | llvm::ConstantInt::getNullValue(CGF.ConvertTypeForMem(C.CharTy)), | ||||
12476 | FiredLVal); | ||||
12477 | return CGF.EmitLValueForField(BaseLVal, VDField).getAddress(CGF); | ||||
12478 | } | ||||
12479 | |||||
12480 | namespace { | ||||
12481 | /// Checks if the lastprivate conditional variable is referenced in LHS. | ||||
12482 | class LastprivateConditionalRefChecker final | ||||
12483 | : public ConstStmtVisitor<LastprivateConditionalRefChecker, bool> { | ||||
12484 | ArrayRef<CGOpenMPRuntime::LastprivateConditionalData> LPM; | ||||
12485 | const Expr *FoundE = nullptr; | ||||
12486 | const Decl *FoundD = nullptr; | ||||
12487 | StringRef UniqueDeclName; | ||||
12488 | LValue IVLVal; | ||||
12489 | llvm::Function *FoundFn = nullptr; | ||||
12490 | SourceLocation Loc; | ||||
12491 | |||||
12492 | public: | ||||
12493 | bool VisitDeclRefExpr(const DeclRefExpr *E) { | ||||
12494 | for (const CGOpenMPRuntime::LastprivateConditionalData &D : | ||||
12495 | llvm::reverse(LPM)) { | ||||
12496 | auto It = D.DeclToUniqueName.find(E->getDecl()); | ||||
12497 | if (It == D.DeclToUniqueName.end()) | ||||
12498 | continue; | ||||
12499 | if (D.Disabled) | ||||
12500 | return false; | ||||
12501 | FoundE = E; | ||||
12502 | FoundD = E->getDecl()->getCanonicalDecl(); | ||||
12503 | UniqueDeclName = It->second; | ||||
12504 | IVLVal = D.IVLVal; | ||||
12505 | FoundFn = D.Fn; | ||||
12506 | break; | ||||
12507 | } | ||||
12508 | return FoundE == E; | ||||
12509 | } | ||||
12510 | bool VisitMemberExpr(const MemberExpr *E) { | ||||
12511 | if (!CodeGenFunction::IsWrappedCXXThis(E->getBase())) | ||||
12512 | return false; | ||||
12513 | for (const CGOpenMPRuntime::LastprivateConditionalData &D : | ||||
12514 | llvm::reverse(LPM)) { | ||||
12515 | auto It = D.DeclToUniqueName.find(E->getMemberDecl()); | ||||
12516 | if (It == D.DeclToUniqueName.end()) | ||||
12517 | continue; | ||||
12518 | if (D.Disabled) | ||||
12519 | return false; | ||||
12520 | FoundE = E; | ||||
12521 | FoundD = E->getMemberDecl()->getCanonicalDecl(); | ||||
12522 | UniqueDeclName = It->second; | ||||
12523 | IVLVal = D.IVLVal; | ||||
12524 | FoundFn = D.Fn; | ||||
12525 | break; | ||||
12526 | } | ||||
12527 | return FoundE == E; | ||||
12528 | } | ||||
12529 | bool VisitStmt(const Stmt *S) { | ||||
12530 | for (const Stmt *Child : S->children()) { | ||||
12531 | if (!Child) | ||||
12532 | continue; | ||||
12533 | if (const auto *E = dyn_cast<Expr>(Child)) | ||||
12534 | if (!E->isGLValue()) | ||||
12535 | continue; | ||||
12536 | if (Visit(Child)) | ||||
12537 | return true; | ||||
12538 | } | ||||
12539 | return false; | ||||
12540 | } | ||||
12541 | explicit LastprivateConditionalRefChecker( | ||||
12542 | ArrayRef<CGOpenMPRuntime::LastprivateConditionalData> LPM) | ||||
12543 | : LPM(LPM) {} | ||||
12544 | std::tuple<const Expr *, const Decl *, StringRef, LValue, llvm::Function *> | ||||
12545 | getFoundData() const { | ||||
12546 | return std::make_tuple(FoundE, FoundD, UniqueDeclName, IVLVal, FoundFn); | ||||
12547 | } | ||||
12548 | }; | ||||
12549 | } // namespace | ||||
12550 | |||||
12551 | void CGOpenMPRuntime::emitLastprivateConditionalUpdate(CodeGenFunction &CGF, | ||||
12552 | LValue IVLVal, | ||||
12553 | StringRef UniqueDeclName, | ||||
12554 | LValue LVal, | ||||
12555 | SourceLocation Loc) { | ||||
12556 | // Last updated loop counter for the lastprivate conditional var. | ||||
12557 | // int<xx> last_iv = 0; | ||||
12558 | llvm::Type *LLIVTy = CGF.ConvertTypeForMem(IVLVal.getType()); | ||||
12559 | llvm::Constant *LastIV = | ||||
12560 | getOrCreateInternalVariable(LLIVTy, getName({UniqueDeclName, "iv"})); | ||||
12561 | cast<llvm::GlobalVariable>(LastIV)->setAlignment( | ||||
12562 | IVLVal.getAlignment().getAsAlign()); | ||||
12563 | LValue LastIVLVal = CGF.MakeNaturalAlignAddrLValue(LastIV, IVLVal.getType()); | ||||
12564 | |||||
12565 | // Last value of the lastprivate conditional. | ||||
12566 | // decltype(priv_a) last_a; | ||||
12567 | llvm::Constant *Last = getOrCreateInternalVariable( | ||||
12568 | CGF.ConvertTypeForMem(LVal.getType()), UniqueDeclName); | ||||
12569 | cast<llvm::GlobalVariable>(Last)->setAlignment( | ||||
12570 | LVal.getAlignment().getAsAlign()); | ||||
12571 | LValue LastLVal = | ||||
12572 | CGF.MakeAddrLValue(Last, LVal.getType(), LVal.getAlignment()); | ||||
12573 | |||||
12574 | // Global loop counter. Required to handle inner parallel-for regions. | ||||
12575 | // iv | ||||
12576 | llvm::Value *IVVal = CGF.EmitLoadOfScalar(IVLVal, Loc); | ||||
12577 | |||||
12578 | // #pragma omp critical(a) | ||||
12579 | // if (last_iv <= iv) { | ||||
12580 | // last_iv = iv; | ||||
12581 | // last_a = priv_a; | ||||
12582 | // } | ||||
12583 | auto &&CodeGen = [&LastIVLVal, &IVLVal, IVVal, &LVal, &LastLVal, | ||||
12584 | Loc](CodeGenFunction &CGF, PrePostActionTy &Action) { | ||||
12585 | Action.Enter(CGF); | ||||
12586 | llvm::Value *LastIVVal = CGF.EmitLoadOfScalar(LastIVLVal, Loc); | ||||
12587 | // (last_iv <= iv) ? Check if the variable is updated and store new | ||||
12588 | // value in global var. | ||||
12589 | llvm::Value *CmpRes; | ||||
12590 | if (IVLVal.getType()->isSignedIntegerType()) { | ||||
12591 | CmpRes = CGF.Builder.CreateICmpSLE(LastIVVal, IVVal); | ||||
12592 | } else { | ||||
12593 | assert(IVLVal.getType()->isUnsignedIntegerType() &&((void)0) | ||||
12594 | "Loop iteration variable must be integer.")((void)0); | ||||
12595 | CmpRes = CGF.Builder.CreateICmpULE(LastIVVal, IVVal); | ||||
12596 | } | ||||
12597 | llvm::BasicBlock *ThenBB = CGF.createBasicBlock("lp_cond_then"); | ||||
12598 | llvm::BasicBlock *ExitBB = CGF.createBasicBlock("lp_cond_exit"); | ||||
12599 | CGF.Builder.CreateCondBr(CmpRes, ThenBB, ExitBB); | ||||
12600 | // { | ||||
12601 | CGF.EmitBlock(ThenBB); | ||||
12602 | |||||
12603 | // last_iv = iv; | ||||
12604 | CGF.EmitStoreOfScalar(IVVal, LastIVLVal); | ||||
12605 | |||||
12606 | // last_a = priv_a; | ||||
12607 | switch (CGF.getEvaluationKind(LVal.getType())) { | ||||
12608 | case TEK_Scalar: { | ||||
12609 | llvm::Value *PrivVal = CGF.EmitLoadOfScalar(LVal, Loc); | ||||
12610 | CGF.EmitStoreOfScalar(PrivVal, LastLVal); | ||||
12611 | break; | ||||
12612 | } | ||||
12613 | case TEK_Complex: { | ||||
12614 | CodeGenFunction::ComplexPairTy PrivVal = CGF.EmitLoadOfComplex(LVal, Loc); | ||||
12615 | CGF.EmitStoreOfComplex(PrivVal, LastLVal, /*isInit=*/false); | ||||
12616 | break; | ||||
12617 | } | ||||
12618 | case TEK_Aggregate: | ||||
12619 | llvm_unreachable(__builtin_unreachable() | ||||
12620 | "Aggregates are not supported in lastprivate conditional.")__builtin_unreachable(); | ||||
12621 | } | ||||
12622 | // } | ||||
12623 | CGF.EmitBranch(ExitBB); | ||||
12624 | // There is no need to emit line number for unconditional branch. | ||||
12625 | (void)ApplyDebugLocation::CreateEmpty(CGF); | ||||
12626 | CGF.EmitBlock(ExitBB, /*IsFinished=*/true); | ||||
12627 | }; | ||||
12628 | |||||
12629 | if (CGM.getLangOpts().OpenMPSimd) { | ||||
12630 | // Do not emit as a critical region as no parallel region could be emitted. | ||||
12631 | RegionCodeGenTy ThenRCG(CodeGen); | ||||
12632 | ThenRCG(CGF); | ||||
12633 | } else { | ||||
12634 | emitCriticalRegion(CGF, UniqueDeclName, CodeGen, Loc); | ||||
12635 | } | ||||
12636 | } | ||||
12637 | |||||
12638 | void CGOpenMPRuntime::checkAndEmitLastprivateConditional(CodeGenFunction &CGF, | ||||
12639 | const Expr *LHS) { | ||||
12640 | if (CGF.getLangOpts().OpenMP < 50 || LastprivateConditionalStack.empty()) | ||||
12641 | return; | ||||
12642 | LastprivateConditionalRefChecker Checker(LastprivateConditionalStack); | ||||
12643 | if (!Checker.Visit(LHS)) | ||||
12644 | return; | ||||
12645 | const Expr *FoundE; | ||||
12646 | const Decl *FoundD; | ||||
12647 | StringRef UniqueDeclName; | ||||
12648 | LValue IVLVal; | ||||
12649 | llvm::Function *FoundFn; | ||||
12650 | std::tie(FoundE, FoundD, UniqueDeclName, IVLVal, FoundFn) = | ||||
12651 | Checker.getFoundData(); | ||||
12652 | if (FoundFn != CGF.CurFn) { | ||||
12653 | // Special codegen for inner parallel regions. | ||||
12654 | // ((struct.lastprivate.conditional*)&priv_a)->Fired = 1; | ||||
12655 | auto It = LastprivateConditionalToTypes[FoundFn].find(FoundD); | ||||
12656 | assert(It != LastprivateConditionalToTypes[FoundFn].end() &&((void)0) | ||||
12657 | "Lastprivate conditional is not found in outer region.")((void)0); | ||||
12658 | QualType StructTy = std::get<0>(It->getSecond()); | ||||
12659 | const FieldDecl* FiredDecl = std::get<2>(It->getSecond()); | ||||
12660 | LValue PrivLVal = CGF.EmitLValue(FoundE); | ||||
12661 | Address StructAddr = CGF.Builder.CreatePointerBitCastOrAddrSpaceCast( | ||||
12662 | PrivLVal.getAddress(CGF), | ||||
12663 | CGF.ConvertTypeForMem(CGF.getContext().getPointerType(StructTy))); | ||||
12664 | LValue BaseLVal = | ||||
12665 | CGF.MakeAddrLValue(StructAddr, StructTy, AlignmentSource::Decl); | ||||
12666 | LValue FiredLVal = CGF.EmitLValueForField(BaseLVal, FiredDecl); | ||||
12667 | CGF.EmitAtomicStore(RValue::get(llvm::ConstantInt::get( | ||||
12668 | CGF.ConvertTypeForMem(FiredDecl->getType()), 1)), | ||||
12669 | FiredLVal, llvm::AtomicOrdering::Unordered, | ||||
12670 | /*IsVolatile=*/true, /*isInit=*/false); | ||||
12671 | return; | ||||
12672 | } | ||||
12673 | |||||
12674 | // Private address of the lastprivate conditional in the current context. | ||||
12675 | // priv_a | ||||
12676 | LValue LVal = CGF.EmitLValue(FoundE); | ||||
12677 | emitLastprivateConditionalUpdate(CGF, IVLVal, UniqueDeclName, LVal, | ||||
12678 | FoundE->getExprLoc()); | ||||
12679 | } | ||||
12680 | |||||
12681 | void CGOpenMPRuntime::checkAndEmitSharedLastprivateConditional( | ||||
12682 | CodeGenFunction &CGF, const OMPExecutableDirective &D, | ||||
12683 | const llvm::DenseSet<CanonicalDeclPtr<const VarDecl>> &IgnoredDecls) { | ||||
12684 | if (CGF.getLangOpts().OpenMP < 50 || LastprivateConditionalStack.empty()) | ||||
12685 | return; | ||||
12686 | auto Range = llvm::reverse(LastprivateConditionalStack); | ||||
12687 | auto It = llvm::find_if( | ||||
12688 | Range, [](const LastprivateConditionalData &D) { return !D.Disabled; }); | ||||
12689 | if (It == Range.end() || It->Fn != CGF.CurFn) | ||||
12690 | return; | ||||
12691 | auto LPCI = LastprivateConditionalToTypes.find(It->Fn); | ||||
12692 | assert(LPCI != LastprivateConditionalToTypes.end() &&((void)0) | ||||
12693 | "Lastprivates must be registered already.")((void)0); | ||||
12694 | SmallVector<OpenMPDirectiveKind, 4> CaptureRegions; | ||||
12695 | getOpenMPCaptureRegions(CaptureRegions, D.getDirectiveKind()); | ||||
12696 | const CapturedStmt *CS = D.getCapturedStmt(CaptureRegions.back()); | ||||
12697 | for (const auto &Pair : It->DeclToUniqueName) { | ||||
12698 | const auto *VD = cast<VarDecl>(Pair.first->getCanonicalDecl()); | ||||
12699 | if (!CS->capturesVariable(VD) || IgnoredDecls.count(VD) > 0) | ||||
12700 | continue; | ||||
12701 | auto I = LPCI->getSecond().find(Pair.first); | ||||
12702 | assert(I != LPCI->getSecond().end() &&((void)0) | ||||
12703 | "Lastprivate must be rehistered already.")((void)0); | ||||
12704 | // bool Cmp = priv_a.Fired != 0; | ||||
12705 | LValue BaseLVal = std::get<3>(I->getSecond()); | ||||
12706 | LValue FiredLVal = | ||||
12707 | CGF.EmitLValueForField(BaseLVal, std::get<2>(I->getSecond())); | ||||
12708 | llvm::Value *Res = CGF.EmitLoadOfScalar(FiredLVal, D.getBeginLoc()); | ||||
12709 | llvm::Value *Cmp = CGF.Builder.CreateIsNotNull(Res); | ||||
12710 | llvm::BasicBlock *ThenBB = CGF.createBasicBlock("lpc.then"); | ||||
12711 | llvm::BasicBlock *DoneBB = CGF.createBasicBlock("lpc.done"); | ||||
12712 | // if (Cmp) { | ||||
12713 | CGF.Builder.CreateCondBr(Cmp, ThenBB, DoneBB); | ||||
12714 | CGF.EmitBlock(ThenBB); | ||||
12715 | Address Addr = CGF.GetAddrOfLocalVar(VD); | ||||
12716 | LValue LVal; | ||||
12717 | if (VD->getType()->isReferenceType()) | ||||
12718 | LVal = CGF.EmitLoadOfReferenceLValue(Addr, VD->getType(), | ||||
12719 | AlignmentSource::Decl); | ||||
12720 | else | ||||
12721 | LVal = CGF.MakeAddrLValue(Addr, VD->getType().getNonReferenceType(), | ||||
12722 | AlignmentSource::Decl); | ||||
12723 | emitLastprivateConditionalUpdate(CGF, It->IVLVal, Pair.second, LVal, | ||||
12724 | D.getBeginLoc()); | ||||
12725 | auto AL = ApplyDebugLocation::CreateArtificial(CGF); | ||||
12726 | CGF.EmitBlock(DoneBB, /*IsFinal=*/true); | ||||
12727 | // } | ||||
12728 | } | ||||
12729 | } | ||||
12730 | |||||
12731 | void CGOpenMPRuntime::emitLastprivateConditionalFinalUpdate( | ||||
12732 | CodeGenFunction &CGF, LValue PrivLVal, const VarDecl *VD, | ||||
12733 | SourceLocation Loc) { | ||||
12734 | if (CGF.getLangOpts().OpenMP < 50) | ||||
12735 | return; | ||||
12736 | auto It = LastprivateConditionalStack.back().DeclToUniqueName.find(VD); | ||||
12737 | assert(It != LastprivateConditionalStack.back().DeclToUniqueName.end() &&((void)0) | ||||
12738 | "Unknown lastprivate conditional variable.")((void)0); | ||||
12739 | StringRef UniqueName = It->second; | ||||
12740 | llvm::GlobalVariable *GV = CGM.getModule().getNamedGlobal(UniqueName); | ||||
12741 | // The variable was not updated in the region - exit. | ||||
12742 | if (!GV) | ||||
12743 | return; | ||||
12744 | LValue LPLVal = CGF.MakeAddrLValue( | ||||
12745 | GV, PrivLVal.getType().getNonReferenceType(), PrivLVal.getAlignment()); | ||||
12746 | llvm::Value *Res = CGF.EmitLoadOfScalar(LPLVal, Loc); | ||||
12747 | CGF.EmitStoreOfScalar(Res, PrivLVal); | ||||
12748 | } | ||||
12749 | |||||
12750 | llvm::Function *CGOpenMPSIMDRuntime::emitParallelOutlinedFunction( | ||||
12751 | const OMPExecutableDirective &D, const VarDecl *ThreadIDVar, | ||||
12752 | OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen) { | ||||
12753 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12754 | } | ||||
12755 | |||||
12756 | llvm::Function *CGOpenMPSIMDRuntime::emitTeamsOutlinedFunction( | ||||
12757 | const OMPExecutableDirective &D, const VarDecl *ThreadIDVar, | ||||
12758 | OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen) { | ||||
12759 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12760 | } | ||||
12761 | |||||
12762 | llvm::Function *CGOpenMPSIMDRuntime::emitTaskOutlinedFunction( | ||||
12763 | const OMPExecutableDirective &D, const VarDecl *ThreadIDVar, | ||||
12764 | const VarDecl *PartIDVar, const VarDecl *TaskTVar, | ||||
12765 | OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen, | ||||
12766 | bool Tied, unsigned &NumberOfParts) { | ||||
12767 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12768 | } | ||||
12769 | |||||
12770 | void CGOpenMPSIMDRuntime::emitParallelCall(CodeGenFunction &CGF, | ||||
12771 | SourceLocation Loc, | ||||
12772 | llvm::Function *OutlinedFn, | ||||
12773 | ArrayRef<llvm::Value *> CapturedVars, | ||||
12774 | const Expr *IfCond) { | ||||
12775 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12776 | } | ||||
12777 | |||||
12778 | void CGOpenMPSIMDRuntime::emitCriticalRegion( | ||||
12779 | CodeGenFunction &CGF, StringRef CriticalName, | ||||
12780 | const RegionCodeGenTy &CriticalOpGen, SourceLocation Loc, | ||||
12781 | const Expr *Hint) { | ||||
12782 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12783 | } | ||||
12784 | |||||
12785 | void CGOpenMPSIMDRuntime::emitMasterRegion(CodeGenFunction &CGF, | ||||
12786 | const RegionCodeGenTy &MasterOpGen, | ||||
12787 | SourceLocation Loc) { | ||||
12788 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12789 | } | ||||
12790 | |||||
12791 | void CGOpenMPSIMDRuntime::emitMaskedRegion(CodeGenFunction &CGF, | ||||
12792 | const RegionCodeGenTy &MasterOpGen, | ||||
12793 | SourceLocation Loc, | ||||
12794 | const Expr *Filter) { | ||||
12795 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12796 | } | ||||
12797 | |||||
12798 | void CGOpenMPSIMDRuntime::emitTaskyieldCall(CodeGenFunction &CGF, | ||||
12799 | SourceLocation Loc) { | ||||
12800 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12801 | } | ||||
12802 | |||||
12803 | void CGOpenMPSIMDRuntime::emitTaskgroupRegion( | ||||
12804 | CodeGenFunction &CGF, const RegionCodeGenTy &TaskgroupOpGen, | ||||
12805 | SourceLocation Loc) { | ||||
12806 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12807 | } | ||||
12808 | |||||
12809 | void CGOpenMPSIMDRuntime::emitSingleRegion( | ||||
12810 | CodeGenFunction &CGF, const RegionCodeGenTy &SingleOpGen, | ||||
12811 | SourceLocation Loc, ArrayRef<const Expr *> CopyprivateVars, | ||||
12812 | ArrayRef<const Expr *> DestExprs, ArrayRef<const Expr *> SrcExprs, | ||||
12813 | ArrayRef<const Expr *> AssignmentOps) { | ||||
12814 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12815 | } | ||||
12816 | |||||
12817 | void CGOpenMPSIMDRuntime::emitOrderedRegion(CodeGenFunction &CGF, | ||||
12818 | const RegionCodeGenTy &OrderedOpGen, | ||||
12819 | SourceLocation Loc, | ||||
12820 | bool IsThreads) { | ||||
12821 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12822 | } | ||||
12823 | |||||
12824 | void CGOpenMPSIMDRuntime::emitBarrierCall(CodeGenFunction &CGF, | ||||
12825 | SourceLocation Loc, | ||||
12826 | OpenMPDirectiveKind Kind, | ||||
12827 | bool EmitChecks, | ||||
12828 | bool ForceSimpleCall) { | ||||
12829 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12830 | } | ||||
12831 | |||||
12832 | void CGOpenMPSIMDRuntime::emitForDispatchInit( | ||||
12833 | CodeGenFunction &CGF, SourceLocation Loc, | ||||
12834 | const OpenMPScheduleTy &ScheduleKind, unsigned IVSize, bool IVSigned, | ||||
12835 | bool Ordered, const DispatchRTInput &DispatchValues) { | ||||
12836 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12837 | } | ||||
12838 | |||||
12839 | void CGOpenMPSIMDRuntime::emitForStaticInit( | ||||
12840 | CodeGenFunction &CGF, SourceLocation Loc, OpenMPDirectiveKind DKind, | ||||
12841 | const OpenMPScheduleTy &ScheduleKind, const StaticRTInput &Values) { | ||||
12842 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12843 | } | ||||
12844 | |||||
12845 | void CGOpenMPSIMDRuntime::emitDistributeStaticInit( | ||||
12846 | CodeGenFunction &CGF, SourceLocation Loc, | ||||
12847 | OpenMPDistScheduleClauseKind SchedKind, const StaticRTInput &Values) { | ||||
12848 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12849 | } | ||||
12850 | |||||
12851 | void CGOpenMPSIMDRuntime::emitForOrderedIterationEnd(CodeGenFunction &CGF, | ||||
12852 | SourceLocation Loc, | ||||
12853 | unsigned IVSize, | ||||
12854 | bool IVSigned) { | ||||
12855 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12856 | } | ||||
12857 | |||||
12858 | void CGOpenMPSIMDRuntime::emitForStaticFinish(CodeGenFunction &CGF, | ||||
12859 | SourceLocation Loc, | ||||
12860 | OpenMPDirectiveKind DKind) { | ||||
12861 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12862 | } | ||||
12863 | |||||
12864 | llvm::Value *CGOpenMPSIMDRuntime::emitForNext(CodeGenFunction &CGF, | ||||
12865 | SourceLocation Loc, | ||||
12866 | unsigned IVSize, bool IVSigned, | ||||
12867 | Address IL, Address LB, | ||||
12868 | Address UB, Address ST) { | ||||
12869 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12870 | } | ||||
12871 | |||||
12872 | void CGOpenMPSIMDRuntime::emitNumThreadsClause(CodeGenFunction &CGF, | ||||
12873 | llvm::Value *NumThreads, | ||||
12874 | SourceLocation Loc) { | ||||
12875 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12876 | } | ||||
12877 | |||||
12878 | void CGOpenMPSIMDRuntime::emitProcBindClause(CodeGenFunction &CGF, | ||||
12879 | ProcBindKind ProcBind, | ||||
12880 | SourceLocation Loc) { | ||||
12881 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12882 | } | ||||
12883 | |||||
12884 | Address CGOpenMPSIMDRuntime::getAddrOfThreadPrivate(CodeGenFunction &CGF, | ||||
12885 | const VarDecl *VD, | ||||
12886 | Address VDAddr, | ||||
12887 | SourceLocation Loc) { | ||||
12888 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12889 | } | ||||
12890 | |||||
12891 | llvm::Function *CGOpenMPSIMDRuntime::emitThreadPrivateVarDefinition( | ||||
12892 | const VarDecl *VD, Address VDAddr, SourceLocation Loc, bool PerformInit, | ||||
12893 | CodeGenFunction *CGF) { | ||||
12894 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12895 | } | ||||
12896 | |||||
12897 | Address CGOpenMPSIMDRuntime::getAddrOfArtificialThreadPrivate( | ||||
12898 | CodeGenFunction &CGF, QualType VarType, StringRef Name) { | ||||
12899 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12900 | } | ||||
12901 | |||||
12902 | void CGOpenMPSIMDRuntime::emitFlush(CodeGenFunction &CGF, | ||||
12903 | ArrayRef<const Expr *> Vars, | ||||
12904 | SourceLocation Loc, | ||||
12905 | llvm::AtomicOrdering AO) { | ||||
12906 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12907 | } | ||||
12908 | |||||
12909 | void CGOpenMPSIMDRuntime::emitTaskCall(CodeGenFunction &CGF, SourceLocation Loc, | ||||
12910 | const OMPExecutableDirective &D, | ||||
12911 | llvm::Function *TaskFunction, | ||||
12912 | QualType SharedsTy, Address Shareds, | ||||
12913 | const Expr *IfCond, | ||||
12914 | const OMPTaskDataTy &Data) { | ||||
12915 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12916 | } | ||||
12917 | |||||
12918 | void CGOpenMPSIMDRuntime::emitTaskLoopCall( | ||||
12919 | CodeGenFunction &CGF, SourceLocation Loc, const OMPLoopDirective &D, | ||||
12920 | llvm::Function *TaskFunction, QualType SharedsTy, Address Shareds, | ||||
12921 | const Expr *IfCond, const OMPTaskDataTy &Data) { | ||||
12922 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12923 | } | ||||
12924 | |||||
12925 | void CGOpenMPSIMDRuntime::emitReduction( | ||||
12926 | CodeGenFunction &CGF, SourceLocation Loc, ArrayRef<const Expr *> Privates, | ||||
12927 | ArrayRef<const Expr *> LHSExprs, ArrayRef<const Expr *> RHSExprs, | ||||
12928 | ArrayRef<const Expr *> ReductionOps, ReductionOptionsTy Options) { | ||||
12929 | assert(Options.SimpleReduction && "Only simple reduction is expected.")((void)0); | ||||
12930 | CGOpenMPRuntime::emitReduction(CGF, Loc, Privates, LHSExprs, RHSExprs, | ||||
12931 | ReductionOps, Options); | ||||
12932 | } | ||||
12933 | |||||
12934 | llvm::Value *CGOpenMPSIMDRuntime::emitTaskReductionInit( | ||||
12935 | CodeGenFunction &CGF, SourceLocation Loc, ArrayRef<const Expr *> LHSExprs, | ||||
12936 | ArrayRef<const Expr *> RHSExprs, const OMPTaskDataTy &Data) { | ||||
12937 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12938 | } | ||||
12939 | |||||
12940 | void CGOpenMPSIMDRuntime::emitTaskReductionFini(CodeGenFunction &CGF, | ||||
12941 | SourceLocation Loc, | ||||
12942 | bool IsWorksharingReduction) { | ||||
12943 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12944 | } | ||||
12945 | |||||
12946 | void CGOpenMPSIMDRuntime::emitTaskReductionFixups(CodeGenFunction &CGF, | ||||
12947 | SourceLocation Loc, | ||||
12948 | ReductionCodeGen &RCG, | ||||
12949 | unsigned N) { | ||||
12950 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12951 | } | ||||
12952 | |||||
12953 | Address CGOpenMPSIMDRuntime::getTaskReductionItem(CodeGenFunction &CGF, | ||||
12954 | SourceLocation Loc, | ||||
12955 | llvm::Value *ReductionsPtr, | ||||
12956 | LValue SharedLVal) { | ||||
12957 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12958 | } | ||||
12959 | |||||
12960 | void CGOpenMPSIMDRuntime::emitTaskwaitCall(CodeGenFunction &CGF, | ||||
12961 | SourceLocation Loc) { | ||||
12962 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12963 | } | ||||
12964 | |||||
12965 | void CGOpenMPSIMDRuntime::emitCancellationPointCall( | ||||
12966 | CodeGenFunction &CGF, SourceLocation Loc, | ||||
12967 | OpenMPDirectiveKind CancelRegion) { | ||||
12968 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12969 | } | ||||
12970 | |||||
12971 | void CGOpenMPSIMDRuntime::emitCancelCall(CodeGenFunction &CGF, | ||||
12972 | SourceLocation Loc, const Expr *IfCond, | ||||
12973 | OpenMPDirectiveKind CancelRegion) { | ||||
12974 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12975 | } | ||||
12976 | |||||
12977 | void CGOpenMPSIMDRuntime::emitTargetOutlinedFunction( | ||||
12978 | const OMPExecutableDirective &D, StringRef ParentName, | ||||
12979 | llvm::Function *&OutlinedFn, llvm::Constant *&OutlinedFnID, | ||||
12980 | bool IsOffloadEntry, const RegionCodeGenTy &CodeGen) { | ||||
12981 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12982 | } | ||||
12983 | |||||
12984 | void CGOpenMPSIMDRuntime::emitTargetCall( | ||||
12985 | CodeGenFunction &CGF, const OMPExecutableDirective &D, | ||||
12986 | llvm::Function *OutlinedFn, llvm::Value *OutlinedFnID, const Expr *IfCond, | ||||
12987 | llvm::PointerIntPair<const Expr *, 2, OpenMPDeviceClauseModifier> Device, | ||||
12988 | llvm::function_ref<llvm::Value *(CodeGenFunction &CGF, | ||||
12989 | const OMPLoopDirective &D)> | ||||
12990 | SizeEmitter) { | ||||
12991 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12992 | } | ||||
12993 | |||||
12994 | bool CGOpenMPSIMDRuntime::emitTargetFunctions(GlobalDecl GD) { | ||||
12995 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
12996 | } | ||||
12997 | |||||
12998 | bool CGOpenMPSIMDRuntime::emitTargetGlobalVariable(GlobalDecl GD) { | ||||
12999 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
13000 | } | ||||
13001 | |||||
13002 | bool CGOpenMPSIMDRuntime::emitTargetGlobal(GlobalDecl GD) { | ||||
13003 | return false; | ||||
13004 | } | ||||
13005 | |||||
13006 | void CGOpenMPSIMDRuntime::emitTeamsCall(CodeGenFunction &CGF, | ||||
13007 | const OMPExecutableDirective &D, | ||||
13008 | SourceLocation Loc, | ||||
13009 | llvm::Function *OutlinedFn, | ||||
13010 | ArrayRef<llvm::Value *> CapturedVars) { | ||||
13011 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
13012 | } | ||||
13013 | |||||
13014 | void CGOpenMPSIMDRuntime::emitNumTeamsClause(CodeGenFunction &CGF, | ||||
13015 | const Expr *NumTeams, | ||||
13016 | const Expr *ThreadLimit, | ||||
13017 | SourceLocation Loc) { | ||||
13018 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
13019 | } | ||||
13020 | |||||
13021 | void CGOpenMPSIMDRuntime::emitTargetDataCalls( | ||||
13022 | CodeGenFunction &CGF, const OMPExecutableDirective &D, const Expr *IfCond, | ||||
13023 | const Expr *Device, const RegionCodeGenTy &CodeGen, TargetDataInfo &Info) { | ||||
13024 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
13025 | } | ||||
13026 | |||||
13027 | void CGOpenMPSIMDRuntime::emitTargetDataStandAloneCall( | ||||
13028 | CodeGenFunction &CGF, const OMPExecutableDirective &D, const Expr *IfCond, | ||||
13029 | const Expr *Device) { | ||||
13030 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
13031 | } | ||||
13032 | |||||
13033 | void CGOpenMPSIMDRuntime::emitDoacrossInit(CodeGenFunction &CGF, | ||||
13034 | const OMPLoopDirective &D, | ||||
13035 | ArrayRef<Expr *> NumIterations) { | ||||
13036 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
13037 | } | ||||
13038 | |||||
13039 | void CGOpenMPSIMDRuntime::emitDoacrossOrdered(CodeGenFunction &CGF, | ||||
13040 | const OMPDependClause *C) { | ||||
13041 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
13042 | } | ||||
13043 | |||||
13044 | const VarDecl * | ||||
13045 | CGOpenMPSIMDRuntime::translateParameter(const FieldDecl *FD, | ||||
13046 | const VarDecl *NativeParam) const { | ||||
13047 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
13048 | } | ||||
13049 | |||||
13050 | Address | ||||
13051 | CGOpenMPSIMDRuntime::getParameterAddress(CodeGenFunction &CGF, | ||||
13052 | const VarDecl *NativeParam, | ||||
13053 | const VarDecl *TargetParam) const { | ||||
13054 | llvm_unreachable("Not supported in SIMD-only mode")__builtin_unreachable(); | ||||
13055 | } |
1 | //===----- CGOpenMPRuntime.h - Interface to OpenMP Runtimes -----*- C++ -*-===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | // |
9 | // This provides a class for OpenMP runtime code generation. |
10 | // |
11 | //===----------------------------------------------------------------------===// |
12 | |
13 | #ifndef LLVM_CLANG_LIB_CODEGEN_CGOPENMPRUNTIME_H |
14 | #define LLVM_CLANG_LIB_CODEGEN_CGOPENMPRUNTIME_H |
15 | |
16 | #include "CGValue.h" |
17 | #include "clang/AST/DeclOpenMP.h" |
18 | #include "clang/AST/GlobalDecl.h" |
19 | #include "clang/AST/Type.h" |
20 | #include "clang/Basic/OpenMPKinds.h" |
21 | #include "clang/Basic/SourceLocation.h" |
22 | #include "llvm/ADT/DenseMap.h" |
23 | #include "llvm/ADT/PointerIntPair.h" |
24 | #include "llvm/ADT/SmallPtrSet.h" |
25 | #include "llvm/ADT/StringMap.h" |
26 | #include "llvm/ADT/StringSet.h" |
27 | #include "llvm/Frontend/OpenMP/OMPConstants.h" |
28 | #include "llvm/Frontend/OpenMP/OMPIRBuilder.h" |
29 | #include "llvm/IR/Function.h" |
30 | #include "llvm/IR/ValueHandle.h" |
31 | #include "llvm/Support/AtomicOrdering.h" |
32 | |
33 | namespace llvm { |
34 | class ArrayType; |
35 | class Constant; |
36 | class FunctionType; |
37 | class GlobalVariable; |
38 | class StructType; |
39 | class Type; |
40 | class Value; |
41 | class OpenMPIRBuilder; |
42 | } // namespace llvm |
43 | |
44 | namespace clang { |
45 | class Expr; |
46 | class OMPDependClause; |
47 | class OMPExecutableDirective; |
48 | class OMPLoopDirective; |
49 | class VarDecl; |
50 | class OMPDeclareReductionDecl; |
51 | class IdentifierInfo; |
52 | |
53 | namespace CodeGen { |
54 | class Address; |
55 | class CodeGenFunction; |
56 | class CodeGenModule; |
57 | |
58 | /// A basic class for pre|post-action for advanced codegen sequence for OpenMP |
59 | /// region. |
60 | class PrePostActionTy { |
61 | public: |
62 | explicit PrePostActionTy() {} |
63 | virtual void Enter(CodeGenFunction &CGF) {} |
64 | virtual void Exit(CodeGenFunction &CGF) {} |
65 | virtual ~PrePostActionTy() {} |
66 | }; |
67 | |
68 | /// Class provides a way to call simple version of codegen for OpenMP region, or |
69 | /// an advanced with possible pre|post-actions in codegen. |
70 | class RegionCodeGenTy final { |
71 | intptr_t CodeGen; |
72 | typedef void (*CodeGenTy)(intptr_t, CodeGenFunction &, PrePostActionTy &); |
73 | CodeGenTy Callback; |
74 | mutable PrePostActionTy *PrePostAction; |
75 | RegionCodeGenTy() = delete; |
76 | template <typename Callable> |
77 | static void CallbackFn(intptr_t CodeGen, CodeGenFunction &CGF, |
78 | PrePostActionTy &Action) { |
79 | return (*reinterpret_cast<Callable *>(CodeGen))(CGF, Action); |
80 | } |
81 | |
82 | public: |
83 | template <typename Callable> |
84 | RegionCodeGenTy( |
85 | Callable &&CodeGen, |
86 | std::enable_if_t<!std::is_same<std::remove_reference_t<Callable>, |
87 | RegionCodeGenTy>::value> * = nullptr) |
88 | : CodeGen(reinterpret_cast<intptr_t>(&CodeGen)), |
89 | Callback(CallbackFn<std::remove_reference_t<Callable>>), |
90 | PrePostAction(nullptr) {} |
91 | void setAction(PrePostActionTy &Action) const { PrePostAction = &Action; } |
92 | void operator()(CodeGenFunction &CGF) const; |
93 | }; |
94 | |
95 | struct OMPTaskDataTy final { |
96 | SmallVector<const Expr *, 4> PrivateVars; |
97 | SmallVector<const Expr *, 4> PrivateCopies; |
98 | SmallVector<const Expr *, 4> FirstprivateVars; |
99 | SmallVector<const Expr *, 4> FirstprivateCopies; |
100 | SmallVector<const Expr *, 4> FirstprivateInits; |
101 | SmallVector<const Expr *, 4> LastprivateVars; |
102 | SmallVector<const Expr *, 4> LastprivateCopies; |
103 | SmallVector<const Expr *, 4> ReductionVars; |
104 | SmallVector<const Expr *, 4> ReductionOrigs; |
105 | SmallVector<const Expr *, 4> ReductionCopies; |
106 | SmallVector<const Expr *, 4> ReductionOps; |
107 | SmallVector<CanonicalDeclPtr<const VarDecl>, 4> PrivateLocals; |
108 | struct DependData { |
109 | OpenMPDependClauseKind DepKind = OMPC_DEPEND_unknown; |
110 | const Expr *IteratorExpr = nullptr; |
111 | SmallVector<const Expr *, 4> DepExprs; |
112 | explicit DependData() = default; |
113 | DependData(OpenMPDependClauseKind DepKind, const Expr *IteratorExpr) |
114 | : DepKind(DepKind), IteratorExpr(IteratorExpr) {} |
115 | }; |
116 | SmallVector<DependData, 4> Dependences; |
117 | llvm::PointerIntPair<llvm::Value *, 1, bool> Final; |
118 | llvm::PointerIntPair<llvm::Value *, 1, bool> Schedule; |
119 | llvm::PointerIntPair<llvm::Value *, 1, bool> Priority; |
120 | llvm::Value *Reductions = nullptr; |
121 | unsigned NumberOfParts = 0; |
122 | bool Tied = true; |
123 | bool Nogroup = false; |
124 | bool IsReductionWithTaskMod = false; |
125 | bool IsWorksharingReduction = false; |
126 | }; |
127 | |
128 | /// Class intended to support codegen of all kind of the reduction clauses. |
129 | class ReductionCodeGen { |
130 | private: |
131 | /// Data required for codegen of reduction clauses. |
132 | struct ReductionData { |
133 | /// Reference to the item shared between tasks to reduce into. |
134 | const Expr *Shared = nullptr; |
135 | /// Reference to the original item. |
136 | const Expr *Ref = nullptr; |
137 | /// Helper expression for generation of private copy. |
138 | const Expr *Private = nullptr; |
139 | /// Helper expression for generation reduction operation. |
140 | const Expr *ReductionOp = nullptr; |
141 | ReductionData(const Expr *Shared, const Expr *Ref, const Expr *Private, |
142 | const Expr *ReductionOp) |
143 | : Shared(Shared), Ref(Ref), Private(Private), ReductionOp(ReductionOp) { |
144 | } |
145 | }; |
146 | /// List of reduction-based clauses. |
147 | SmallVector<ReductionData, 4> ClausesData; |
148 | |
149 | /// List of addresses of shared variables/expressions. |
150 | SmallVector<std::pair<LValue, LValue>, 4> SharedAddresses; |
151 | /// List of addresses of original variables/expressions. |
152 | SmallVector<std::pair<LValue, LValue>, 4> OrigAddresses; |
153 | /// Sizes of the reduction items in chars. |
154 | SmallVector<std::pair<llvm::Value *, llvm::Value *>, 4> Sizes; |
155 | /// Base declarations for the reduction items. |
156 | SmallVector<const VarDecl *, 4> BaseDecls; |
157 | |
158 | /// Emits lvalue for shared expression. |
159 | LValue emitSharedLValue(CodeGenFunction &CGF, const Expr *E); |
160 | /// Emits upper bound for shared expression (if array section). |
161 | LValue emitSharedLValueUB(CodeGenFunction &CGF, const Expr *E); |
162 | /// Performs aggregate initialization. |
163 | /// \param N Number of reduction item in the common list. |
164 | /// \param PrivateAddr Address of the corresponding private item. |
165 | /// \param SharedLVal Address of the original shared variable. |
166 | /// \param DRD Declare reduction construct used for reduction item. |
167 | void emitAggregateInitialization(CodeGenFunction &CGF, unsigned N, |
168 | Address PrivateAddr, LValue SharedLVal, |
169 | const OMPDeclareReductionDecl *DRD); |
170 | |
171 | public: |
172 | ReductionCodeGen(ArrayRef<const Expr *> Shareds, ArrayRef<const Expr *> Origs, |
173 | ArrayRef<const Expr *> Privates, |
174 | ArrayRef<const Expr *> ReductionOps); |
175 | /// Emits lvalue for the shared and original reduction item. |
176 | /// \param N Number of the reduction item. |
177 | void emitSharedOrigLValue(CodeGenFunction &CGF, unsigned N); |
178 | /// Emits the code for the variable-modified type, if required. |
179 | /// \param N Number of the reduction item. |
180 | void emitAggregateType(CodeGenFunction &CGF, unsigned N); |
181 | /// Emits the code for the variable-modified type, if required. |
182 | /// \param N Number of the reduction item. |
183 | /// \param Size Size of the type in chars. |
184 | void emitAggregateType(CodeGenFunction &CGF, unsigned N, llvm::Value *Size); |
185 | /// Performs initialization of the private copy for the reduction item. |
186 | /// \param N Number of the reduction item. |
187 | /// \param PrivateAddr Address of the corresponding private item. |
188 | /// \param DefaultInit Default initialization sequence that should be |
189 | /// performed if no reduction specific initialization is found. |
190 | /// \param SharedLVal Address of the original shared variable. |
191 | void |
192 | emitInitialization(CodeGenFunction &CGF, unsigned N, Address PrivateAddr, |
193 | LValue SharedLVal, |
194 | llvm::function_ref<bool(CodeGenFunction &)> DefaultInit); |
195 | /// Returns true if the private copy requires cleanups. |
196 | bool needCleanups(unsigned N); |
197 | /// Emits cleanup code for the reduction item. |
198 | /// \param N Number of the reduction item. |
199 | /// \param PrivateAddr Address of the corresponding private item. |
200 | void emitCleanups(CodeGenFunction &CGF, unsigned N, Address PrivateAddr); |
201 | /// Adjusts \p PrivatedAddr for using instead of the original variable |
202 | /// address in normal operations. |
203 | /// \param N Number of the reduction item. |
204 | /// \param PrivateAddr Address of the corresponding private item. |
205 | Address adjustPrivateAddress(CodeGenFunction &CGF, unsigned N, |
206 | Address PrivateAddr); |
207 | /// Returns LValue for the reduction item. |
208 | LValue getSharedLValue(unsigned N) const { return SharedAddresses[N].first; } |
209 | /// Returns LValue for the original reduction item. |
210 | LValue getOrigLValue(unsigned N) const { return OrigAddresses[N].first; } |
211 | /// Returns the size of the reduction item (in chars and total number of |
212 | /// elements in the item), or nullptr, if the size is a constant. |
213 | std::pair<llvm::Value *, llvm::Value *> getSizes(unsigned N) const { |
214 | return Sizes[N]; |
215 | } |
216 | /// Returns the base declaration of the reduction item. |
217 | const VarDecl *getBaseDecl(unsigned N) const { return BaseDecls[N]; } |
218 | /// Returns the base declaration of the reduction item. |
219 | const Expr *getRefExpr(unsigned N) const { return ClausesData[N].Ref; } |
220 | /// Returns true if the initialization of the reduction item uses initializer |
221 | /// from declare reduction construct. |
222 | bool usesReductionInitializer(unsigned N) const; |
223 | }; |
224 | |
225 | class CGOpenMPRuntime { |
226 | public: |
227 | /// Allows to disable automatic handling of functions used in target regions |
228 | /// as those marked as `omp declare target`. |
229 | class DisableAutoDeclareTargetRAII { |
230 | CodeGenModule &CGM; |
231 | bool SavedShouldMarkAsGlobal; |
232 | |
233 | public: |
234 | DisableAutoDeclareTargetRAII(CodeGenModule &CGM); |
235 | ~DisableAutoDeclareTargetRAII(); |
236 | }; |
237 | |
238 | /// Manages list of nontemporal decls for the specified directive. |
239 | class NontemporalDeclsRAII { |
240 | CodeGenModule &CGM; |
241 | const bool NeedToPush; |
242 | |
243 | public: |
244 | NontemporalDeclsRAII(CodeGenModule &CGM, const OMPLoopDirective &S); |
245 | ~NontemporalDeclsRAII(); |
246 | }; |
247 | |
248 | /// Manages list of nontemporal decls for the specified directive. |
249 | class UntiedTaskLocalDeclsRAII { |
250 | CodeGenModule &CGM; |
251 | const bool NeedToPush; |
252 | |
253 | public: |
254 | UntiedTaskLocalDeclsRAII( |
255 | CodeGenFunction &CGF, |
256 | const llvm::MapVector<CanonicalDeclPtr<const VarDecl>, |
257 | std::pair<Address, Address>> &LocalVars); |
258 | ~UntiedTaskLocalDeclsRAII(); |
259 | }; |
260 | |
261 | /// Maps the expression for the lastprivate variable to the global copy used |
262 | /// to store new value because original variables are not mapped in inner |
263 | /// parallel regions. Only private copies are captured but we need also to |
264 | /// store private copy in shared address. |
265 | /// Also, stores the expression for the private loop counter and it |
266 | /// threaprivate name. |
267 | struct LastprivateConditionalData { |
268 | llvm::MapVector<CanonicalDeclPtr<const Decl>, SmallString<16>> |
269 | DeclToUniqueName; |
270 | LValue IVLVal; |
271 | llvm::Function *Fn = nullptr; |
272 | bool Disabled = false; |
273 | }; |
274 | /// Manages list of lastprivate conditional decls for the specified directive. |
275 | class LastprivateConditionalRAII { |
276 | enum class ActionToDo { |
277 | DoNotPush, |
278 | PushAsLastprivateConditional, |
279 | DisableLastprivateConditional, |
280 | }; |
281 | CodeGenModule &CGM; |
282 | ActionToDo Action = ActionToDo::DoNotPush; |
283 | |
284 | /// Check and try to disable analysis of inner regions for changes in |
285 | /// lastprivate conditional. |
286 | void tryToDisableInnerAnalysis(const OMPExecutableDirective &S, |
287 | llvm::DenseSet<CanonicalDeclPtr<const Decl>> |
288 | &NeedToAddForLPCsAsDisabled) const; |
289 | |
290 | LastprivateConditionalRAII(CodeGenFunction &CGF, |
291 | const OMPExecutableDirective &S); |
292 | |
293 | public: |
294 | explicit LastprivateConditionalRAII(CodeGenFunction &CGF, |
295 | const OMPExecutableDirective &S, |
296 | LValue IVLVal); |
297 | static LastprivateConditionalRAII disable(CodeGenFunction &CGF, |
298 | const OMPExecutableDirective &S); |
299 | ~LastprivateConditionalRAII(); |
300 | }; |
301 | |
302 | llvm::OpenMPIRBuilder &getOMPBuilder() { return OMPBuilder; } |
303 | |
304 | protected: |
305 | CodeGenModule &CGM; |
306 | StringRef FirstSeparator, Separator; |
307 | |
308 | /// An OpenMP-IR-Builder instance. |
309 | llvm::OpenMPIRBuilder OMPBuilder; |
310 | |
311 | /// Constructor allowing to redefine the name separator for the variables. |
312 | explicit CGOpenMPRuntime(CodeGenModule &CGM, StringRef FirstSeparator, |
313 | StringRef Separator); |
314 | |
315 | /// Creates offloading entry for the provided entry ID \a ID, |
316 | /// address \a Addr, size \a Size, and flags \a Flags. |
317 | virtual void createOffloadEntry(llvm::Constant *ID, llvm::Constant *Addr, |
318 | uint64_t Size, int32_t Flags, |
319 | llvm::GlobalValue::LinkageTypes Linkage); |
320 | |
321 | /// Helper to emit outlined function for 'target' directive. |
322 | /// \param D Directive to emit. |
323 | /// \param ParentName Name of the function that encloses the target region. |
324 | /// \param OutlinedFn Outlined function value to be defined by this call. |
325 | /// \param OutlinedFnID Outlined function ID value to be defined by this call. |
326 | /// \param IsOffloadEntry True if the outlined function is an offload entry. |
327 | /// \param CodeGen Lambda codegen specific to an accelerator device. |
328 | /// An outlined function may not be an entry if, e.g. the if clause always |
329 | /// evaluates to false. |
330 | virtual void emitTargetOutlinedFunctionHelper(const OMPExecutableDirective &D, |
331 | StringRef ParentName, |
332 | llvm::Function *&OutlinedFn, |
333 | llvm::Constant *&OutlinedFnID, |
334 | bool IsOffloadEntry, |
335 | const RegionCodeGenTy &CodeGen); |
336 | |
337 | /// Emits object of ident_t type with info for source location. |
338 | /// \param Flags Flags for OpenMP location. |
339 | /// |
340 | llvm::Value *emitUpdateLocation(CodeGenFunction &CGF, SourceLocation Loc, |
341 | unsigned Flags = 0); |
342 | |
343 | /// Emit the number of teams for a target directive. Inspect the num_teams |
344 | /// clause associated with a teams construct combined or closely nested |
345 | /// with the target directive. |
346 | /// |
347 | /// Emit a team of size one for directives such as 'target parallel' that |
348 | /// have no associated teams construct. |
349 | /// |
350 | /// Otherwise, return nullptr. |
351 | const Expr *getNumTeamsExprForTargetDirective(CodeGenFunction &CGF, |
352 | const OMPExecutableDirective &D, |
353 | int32_t &DefaultVal); |
354 | llvm::Value *emitNumTeamsForTargetDirective(CodeGenFunction &CGF, |
355 | const OMPExecutableDirective &D); |
356 | /// Emit the number of threads for a target directive. Inspect the |
357 | /// thread_limit clause associated with a teams construct combined or closely |
358 | /// nested with the target directive. |
359 | /// |
360 | /// Emit the num_threads clause for directives such as 'target parallel' that |
361 | /// have no associated teams construct. |
362 | /// |
363 | /// Otherwise, return nullptr. |
364 | const Expr * |
365 | getNumThreadsExprForTargetDirective(CodeGenFunction &CGF, |
366 | const OMPExecutableDirective &D, |
367 | int32_t &DefaultVal); |
368 | llvm::Value * |
369 | emitNumThreadsForTargetDirective(CodeGenFunction &CGF, |
370 | const OMPExecutableDirective &D); |
371 | |
372 | /// Returns pointer to ident_t type. |
373 | llvm::Type *getIdentTyPointerTy(); |
374 | |
375 | /// Gets thread id value for the current thread. |
376 | /// |
377 | llvm::Value *getThreadID(CodeGenFunction &CGF, SourceLocation Loc); |
378 | |
379 | /// Get the function name of an outlined region. |
380 | // The name can be customized depending on the target. |
381 | // |
382 | virtual StringRef getOutlinedHelperName() const { return ".omp_outlined."; } |
383 | |
384 | /// Emits \p Callee function call with arguments \p Args with location \p Loc. |
385 | void emitCall(CodeGenFunction &CGF, SourceLocation Loc, |
386 | llvm::FunctionCallee Callee, |
387 | ArrayRef<llvm::Value *> Args = llvm::None) const; |
388 | |
389 | /// Emits address of the word in a memory where current thread id is |
390 | /// stored. |
391 | virtual Address emitThreadIDAddress(CodeGenFunction &CGF, SourceLocation Loc); |
392 | |
393 | void setLocThreadIdInsertPt(CodeGenFunction &CGF, |
394 | bool AtCurrentPoint = false); |
395 | void clearLocThreadIdInsertPt(CodeGenFunction &CGF); |
396 | |
397 | /// Check if the default location must be constant. |
398 | /// Default is false to support OMPT/OMPD. |
399 | virtual bool isDefaultLocationConstant() const { return false; } |
400 | |
401 | /// Returns additional flags that can be stored in reserved_2 field of the |
402 | /// default location. |
403 | virtual unsigned getDefaultLocationReserved2Flags() const { return 0; } |
404 | |
405 | /// Returns default flags for the barriers depending on the directive, for |
406 | /// which this barier is going to be emitted. |
407 | static unsigned getDefaultFlagsForBarriers(OpenMPDirectiveKind Kind); |
408 | |
409 | /// Get the LLVM type for the critical name. |
410 | llvm::ArrayType *getKmpCriticalNameTy() const {return KmpCriticalNameTy;} |
411 | |
412 | /// Returns corresponding lock object for the specified critical region |
413 | /// name. If the lock object does not exist it is created, otherwise the |
414 | /// reference to the existing copy is returned. |
415 | /// \param CriticalName Name of the critical region. |
416 | /// |
417 | llvm::Value *getCriticalRegionLock(StringRef CriticalName); |
418 | |
419 | private: |
420 | |
421 | /// Map for SourceLocation and OpenMP runtime library debug locations. |
422 | typedef llvm::DenseMap<SourceLocation, llvm::Value *> OpenMPDebugLocMapTy; |
423 | OpenMPDebugLocMapTy OpenMPDebugLocMap; |
424 | /// The type for a microtask which gets passed to __kmpc_fork_call(). |
425 | /// Original representation is: |
426 | /// typedef void (kmpc_micro)(kmp_int32 global_tid, kmp_int32 bound_tid,...); |
427 | llvm::FunctionType *Kmpc_MicroTy = nullptr; |
428 | /// Stores debug location and ThreadID for the function. |
429 | struct DebugLocThreadIdTy { |
430 | llvm::Value *DebugLoc; |
431 | llvm::Value *ThreadID; |
432 | /// Insert point for the service instructions. |
433 | llvm::AssertingVH<llvm::Instruction> ServiceInsertPt = nullptr; |
434 | }; |
435 | /// Map of local debug location, ThreadId and functions. |
436 | typedef llvm::DenseMap<llvm::Function *, DebugLocThreadIdTy> |
437 | OpenMPLocThreadIDMapTy; |
438 | OpenMPLocThreadIDMapTy OpenMPLocThreadIDMap; |
439 | /// Map of UDRs and corresponding combiner/initializer. |
440 | typedef llvm::DenseMap<const OMPDeclareReductionDecl *, |
441 | std::pair<llvm::Function *, llvm::Function *>> |
442 | UDRMapTy; |
443 | UDRMapTy UDRMap; |
444 | /// Map of functions and locally defined UDRs. |
445 | typedef llvm::DenseMap<llvm::Function *, |
446 | SmallVector<const OMPDeclareReductionDecl *, 4>> |
447 | FunctionUDRMapTy; |
448 | FunctionUDRMapTy FunctionUDRMap; |
449 | /// Map from the user-defined mapper declaration to its corresponding |
450 | /// functions. |
451 | llvm::DenseMap<const OMPDeclareMapperDecl *, llvm::Function *> UDMMap; |
452 | /// Map of functions and their local user-defined mappers. |
453 | using FunctionUDMMapTy = |
454 | llvm::DenseMap<llvm::Function *, |
455 | SmallVector<const OMPDeclareMapperDecl *, 4>>; |
456 | FunctionUDMMapTy FunctionUDMMap; |
457 | /// Maps local variables marked as lastprivate conditional to their internal |
458 | /// types. |
459 | llvm::DenseMap<llvm::Function *, |
460 | llvm::DenseMap<CanonicalDeclPtr<const Decl>, |
461 | std::tuple<QualType, const FieldDecl *, |
462 | const FieldDecl *, LValue>>> |
463 | LastprivateConditionalToTypes; |
464 | /// Maps function to the position of the untied task locals stack. |
465 | llvm::DenseMap<llvm::Function *, unsigned> FunctionToUntiedTaskStackMap; |
466 | /// Type kmp_critical_name, originally defined as typedef kmp_int32 |
467 | /// kmp_critical_name[8]; |
468 | llvm::ArrayType *KmpCriticalNameTy; |
469 | /// An ordered map of auto-generated variables to their unique names. |
470 | /// It stores variables with the following names: 1) ".gomp_critical_user_" + |
471 | /// <critical_section_name> + ".var" for "omp critical" directives; 2) |
472 | /// <mangled_name_for_global_var> + ".cache." for cache for threadprivate |
473 | /// variables. |
474 | llvm::StringMap<llvm::AssertingVH<llvm::Constant>, llvm::BumpPtrAllocator> |
475 | InternalVars; |
476 | /// Type typedef kmp_int32 (* kmp_routine_entry_t)(kmp_int32, void *); |
477 | llvm::Type *KmpRoutineEntryPtrTy = nullptr; |
478 | QualType KmpRoutineEntryPtrQTy; |
479 | /// Type typedef struct kmp_task { |
480 | /// void * shareds; /**< pointer to block of pointers to |
481 | /// shared vars */ |
482 | /// kmp_routine_entry_t routine; /**< pointer to routine to call for |
483 | /// executing task */ |
484 | /// kmp_int32 part_id; /**< part id for the task */ |
485 | /// kmp_routine_entry_t destructors; /* pointer to function to invoke |
486 | /// deconstructors of firstprivate C++ objects */ |
487 | /// } kmp_task_t; |
488 | QualType KmpTaskTQTy; |
489 | /// Saved kmp_task_t for task directive. |
490 | QualType SavedKmpTaskTQTy; |
491 | /// Saved kmp_task_t for taskloop-based directive. |
492 | QualType SavedKmpTaskloopTQTy; |
493 | /// Type typedef struct kmp_depend_info { |
494 | /// kmp_intptr_t base_addr; |
495 | /// size_t len; |
496 | /// struct { |
497 | /// bool in:1; |
498 | /// bool out:1; |
499 | /// } flags; |
500 | /// } kmp_depend_info_t; |
501 | QualType KmpDependInfoTy; |
502 | /// Type typedef struct kmp_task_affinity_info { |
503 | /// kmp_intptr_t base_addr; |
504 | /// size_t len; |
505 | /// struct { |
506 | /// bool flag1 : 1; |
507 | /// bool flag2 : 1; |
508 | /// kmp_int32 reserved : 30; |
509 | /// } flags; |
510 | /// } kmp_task_affinity_info_t; |
511 | QualType KmpTaskAffinityInfoTy; |
512 | /// struct kmp_dim { // loop bounds info casted to kmp_int64 |
513 | /// kmp_int64 lo; // lower |
514 | /// kmp_int64 up; // upper |
515 | /// kmp_int64 st; // stride |
516 | /// }; |
517 | QualType KmpDimTy; |
518 | /// Type struct __tgt_offload_entry{ |
519 | /// void *addr; // Pointer to the offload entry info. |
520 | /// // (function or global) |
521 | /// char *name; // Name of the function or global. |
522 | /// size_t size; // Size of the entry info (0 if it a function). |
523 | /// int32_t flags; |
524 | /// int32_t reserved; |
525 | /// }; |
526 | QualType TgtOffloadEntryQTy; |
527 | /// Entity that registers the offloading constants that were emitted so |
528 | /// far. |
529 | class OffloadEntriesInfoManagerTy { |
530 | CodeGenModule &CGM; |
531 | |
532 | /// Number of entries registered so far. |
533 | unsigned OffloadingEntriesNum = 0; |
534 | |
535 | public: |
536 | /// Base class of the entries info. |
537 | class OffloadEntryInfo { |
538 | public: |
539 | /// Kind of a given entry. |
540 | enum OffloadingEntryInfoKinds : unsigned { |
541 | /// Entry is a target region. |
542 | OffloadingEntryInfoTargetRegion = 0, |
543 | /// Entry is a declare target variable. |
544 | OffloadingEntryInfoDeviceGlobalVar = 1, |
545 | /// Invalid entry info. |
546 | OffloadingEntryInfoInvalid = ~0u |
547 | }; |
548 | |
549 | protected: |
550 | OffloadEntryInfo() = delete; |
551 | explicit OffloadEntryInfo(OffloadingEntryInfoKinds Kind) : Kind(Kind) {} |
552 | explicit OffloadEntryInfo(OffloadingEntryInfoKinds Kind, unsigned Order, |
553 | uint32_t Flags) |
554 | : Flags(Flags), Order(Order), Kind(Kind) {} |
555 | ~OffloadEntryInfo() = default; |
556 | |
557 | public: |
558 | bool isValid() const { return Order != ~0u; } |
559 | unsigned getOrder() const { return Order; } |
560 | OffloadingEntryInfoKinds getKind() const { return Kind; } |
561 | uint32_t getFlags() const { return Flags; } |
562 | void setFlags(uint32_t NewFlags) { Flags = NewFlags; } |
563 | llvm::Constant *getAddress() const { |
564 | return cast_or_null<llvm::Constant>(Addr); |
565 | } |
566 | void setAddress(llvm::Constant *V) { |
567 | assert(!Addr.pointsToAliveValue() && "Address has been set before!")((void)0); |
568 | Addr = V; |
569 | } |
570 | static bool classof(const OffloadEntryInfo *Info) { return true; } |
571 | |
572 | private: |
573 | /// Address of the entity that has to be mapped for offloading. |
574 | llvm::WeakTrackingVH Addr; |
575 | |
576 | /// Flags associated with the device global. |
577 | uint32_t Flags = 0u; |
578 | |
579 | /// Order this entry was emitted. |
580 | unsigned Order = ~0u; |
581 | |
582 | OffloadingEntryInfoKinds Kind = OffloadingEntryInfoInvalid; |
583 | }; |
584 | |
585 | /// Return true if a there are no entries defined. |
586 | bool empty() const; |
587 | /// Return number of entries defined so far. |
588 | unsigned size() const { return OffloadingEntriesNum; } |
589 | OffloadEntriesInfoManagerTy(CodeGenModule &CGM) : CGM(CGM) {} |
590 | |
591 | // |
592 | // Target region entries related. |
593 | // |
594 | |
595 | /// Kind of the target registry entry. |
596 | enum OMPTargetRegionEntryKind : uint32_t { |
597 | /// Mark the entry as target region. |
598 | OMPTargetRegionEntryTargetRegion = 0x0, |
599 | /// Mark the entry as a global constructor. |
600 | OMPTargetRegionEntryCtor = 0x02, |
601 | /// Mark the entry as a global destructor. |
602 | OMPTargetRegionEntryDtor = 0x04, |
603 | }; |
604 | |
605 | /// Target region entries info. |
606 | class OffloadEntryInfoTargetRegion final : public OffloadEntryInfo { |
607 | /// Address that can be used as the ID of the entry. |
608 | llvm::Constant *ID = nullptr; |
609 | |
610 | public: |
611 | OffloadEntryInfoTargetRegion() |
612 | : OffloadEntryInfo(OffloadingEntryInfoTargetRegion) {} |
613 | explicit OffloadEntryInfoTargetRegion(unsigned Order, |
614 | llvm::Constant *Addr, |
615 | llvm::Constant *ID, |
616 | OMPTargetRegionEntryKind Flags) |
617 | : OffloadEntryInfo(OffloadingEntryInfoTargetRegion, Order, Flags), |
618 | ID(ID) { |
619 | setAddress(Addr); |
620 | } |
621 | |
622 | llvm::Constant *getID() const { return ID; } |
623 | void setID(llvm::Constant *V) { |
624 | assert(!ID && "ID has been set before!")((void)0); |
625 | ID = V; |
626 | } |
627 | static bool classof(const OffloadEntryInfo *Info) { |
628 | return Info->getKind() == OffloadingEntryInfoTargetRegion; |
629 | } |
630 | }; |
631 | |
632 | /// Initialize target region entry. |
633 | void initializeTargetRegionEntryInfo(unsigned DeviceID, unsigned FileID, |
634 | StringRef ParentName, unsigned LineNum, |
635 | unsigned Order); |
636 | /// Register target region entry. |
637 | void registerTargetRegionEntryInfo(unsigned DeviceID, unsigned FileID, |
638 | StringRef ParentName, unsigned LineNum, |
639 | llvm::Constant *Addr, llvm::Constant *ID, |
640 | OMPTargetRegionEntryKind Flags); |
641 | /// Return true if a target region entry with the provided information |
642 | /// exists. |
643 | bool hasTargetRegionEntryInfo(unsigned DeviceID, unsigned FileID, |
644 | StringRef ParentName, unsigned LineNum, |
645 | bool IgnoreAddressId = false) const; |
646 | /// brief Applies action \a Action on all registered entries. |
647 | typedef llvm::function_ref<void(unsigned, unsigned, StringRef, unsigned, |
648 | const OffloadEntryInfoTargetRegion &)> |
649 | OffloadTargetRegionEntryInfoActTy; |
650 | void actOnTargetRegionEntriesInfo( |
651 | const OffloadTargetRegionEntryInfoActTy &Action); |
652 | |
653 | // |
654 | // Device global variable entries related. |
655 | // |
656 | |
657 | /// Kind of the global variable entry.. |
658 | enum OMPTargetGlobalVarEntryKind : uint32_t { |
659 | /// Mark the entry as a to declare target. |
660 | OMPTargetGlobalVarEntryTo = 0x0, |
661 | /// Mark the entry as a to declare target link. |
662 | OMPTargetGlobalVarEntryLink = 0x1, |
663 | }; |
664 | |
665 | /// Device global variable entries info. |
666 | class OffloadEntryInfoDeviceGlobalVar final : public OffloadEntryInfo { |
667 | /// Type of the global variable. |
668 | CharUnits VarSize; |
669 | llvm::GlobalValue::LinkageTypes Linkage; |
670 | |
671 | public: |
672 | OffloadEntryInfoDeviceGlobalVar() |
673 | : OffloadEntryInfo(OffloadingEntryInfoDeviceGlobalVar) {} |
674 | explicit OffloadEntryInfoDeviceGlobalVar(unsigned Order, |
675 | OMPTargetGlobalVarEntryKind Flags) |
676 | : OffloadEntryInfo(OffloadingEntryInfoDeviceGlobalVar, Order, Flags) {} |
677 | explicit OffloadEntryInfoDeviceGlobalVar( |
678 | unsigned Order, llvm::Constant *Addr, CharUnits VarSize, |
679 | OMPTargetGlobalVarEntryKind Flags, |
680 | llvm::GlobalValue::LinkageTypes Linkage) |
681 | : OffloadEntryInfo(OffloadingEntryInfoDeviceGlobalVar, Order, Flags), |
682 | VarSize(VarSize), Linkage(Linkage) { |
683 | setAddress(Addr); |
684 | } |
685 | |
686 | CharUnits getVarSize() const { return VarSize; } |
687 | void setVarSize(CharUnits Size) { VarSize = Size; } |
688 | llvm::GlobalValue::LinkageTypes getLinkage() const { return Linkage; } |
689 | void setLinkage(llvm::GlobalValue::LinkageTypes LT) { Linkage = LT; } |
690 | static bool classof(const OffloadEntryInfo *Info) { |
691 | return Info->getKind() == OffloadingEntryInfoDeviceGlobalVar; |
692 | } |
693 | }; |
694 | |
695 | /// Initialize device global variable entry. |
696 | void initializeDeviceGlobalVarEntryInfo(StringRef Name, |
697 | OMPTargetGlobalVarEntryKind Flags, |
698 | unsigned Order); |
699 | |
700 | /// Register device global variable entry. |
701 | void |
702 | registerDeviceGlobalVarEntryInfo(StringRef VarName, llvm::Constant *Addr, |
703 | CharUnits VarSize, |
704 | OMPTargetGlobalVarEntryKind Flags, |
705 | llvm::GlobalValue::LinkageTypes Linkage); |
706 | /// Checks if the variable with the given name has been registered already. |
707 | bool hasDeviceGlobalVarEntryInfo(StringRef VarName) const { |
708 | return OffloadEntriesDeviceGlobalVar.count(VarName) > 0; |
709 | } |
710 | /// Applies action \a Action on all registered entries. |
711 | typedef llvm::function_ref<void(StringRef, |
712 | const OffloadEntryInfoDeviceGlobalVar &)> |
713 | OffloadDeviceGlobalVarEntryInfoActTy; |
714 | void actOnDeviceGlobalVarEntriesInfo( |
715 | const OffloadDeviceGlobalVarEntryInfoActTy &Action); |
716 | |
717 | private: |
718 | // Storage for target region entries kind. The storage is to be indexed by |
719 | // file ID, device ID, parent function name and line number. |
720 | typedef llvm::DenseMap<unsigned, OffloadEntryInfoTargetRegion> |
721 | OffloadEntriesTargetRegionPerLine; |
722 | typedef llvm::StringMap<OffloadEntriesTargetRegionPerLine> |
723 | OffloadEntriesTargetRegionPerParentName; |
724 | typedef llvm::DenseMap<unsigned, OffloadEntriesTargetRegionPerParentName> |
725 | OffloadEntriesTargetRegionPerFile; |
726 | typedef llvm::DenseMap<unsigned, OffloadEntriesTargetRegionPerFile> |
727 | OffloadEntriesTargetRegionPerDevice; |
728 | typedef OffloadEntriesTargetRegionPerDevice OffloadEntriesTargetRegionTy; |
729 | OffloadEntriesTargetRegionTy OffloadEntriesTargetRegion; |
730 | /// Storage for device global variable entries kind. The storage is to be |
731 | /// indexed by mangled name. |
732 | typedef llvm::StringMap<OffloadEntryInfoDeviceGlobalVar> |
733 | OffloadEntriesDeviceGlobalVarTy; |
734 | OffloadEntriesDeviceGlobalVarTy OffloadEntriesDeviceGlobalVar; |
735 | }; |
736 | OffloadEntriesInfoManagerTy OffloadEntriesInfoManager; |
737 | |
738 | bool ShouldMarkAsGlobal = true; |
739 | /// List of the emitted declarations. |
740 | llvm::DenseSet<CanonicalDeclPtr<const Decl>> AlreadyEmittedTargetDecls; |
741 | /// List of the global variables with their addresses that should not be |
742 | /// emitted for the target. |
743 | llvm::StringMap<llvm::WeakTrackingVH> EmittedNonTargetVariables; |
744 | |
745 | /// List of variables that can become declare target implicitly and, thus, |
746 | /// must be emitted. |
747 | llvm::SmallDenseSet<const VarDecl *> DeferredGlobalVariables; |
748 | |
749 | using NontemporalDeclsSet = llvm::SmallDenseSet<CanonicalDeclPtr<const Decl>>; |
750 | /// Stack for list of declarations in current context marked as nontemporal. |
751 | /// The set is the union of all current stack elements. |
752 | llvm::SmallVector<NontemporalDeclsSet, 4> NontemporalDeclsStack; |
753 | |
754 | using UntiedLocalVarsAddressesMap = |
755 | llvm::MapVector<CanonicalDeclPtr<const VarDecl>, |
756 | std::pair<Address, Address>>; |
757 | llvm::SmallVector<UntiedLocalVarsAddressesMap, 4> UntiedLocalVarsStack; |
758 | |
759 | /// Stack for list of addresses of declarations in current context marked as |
760 | /// lastprivate conditional. The set is the union of all current stack |
761 | /// elements. |
762 | llvm::SmallVector<LastprivateConditionalData, 4> LastprivateConditionalStack; |
763 | |
764 | /// Flag for keeping track of weather a requires unified_shared_memory |
765 | /// directive is present. |
766 | bool HasRequiresUnifiedSharedMemory = false; |
767 | |
768 | /// Atomic ordering from the omp requires directive. |
769 | llvm::AtomicOrdering RequiresAtomicOrdering = llvm::AtomicOrdering::Monotonic; |
770 | |
771 | /// Flag for keeping track of weather a target region has been emitted. |
772 | bool HasEmittedTargetRegion = false; |
773 | |
774 | /// Flag for keeping track of weather a device routine has been emitted. |
775 | /// Device routines are specific to the |
776 | bool HasEmittedDeclareTargetRegion = false; |
777 | |
778 | /// Loads all the offload entries information from the host IR |
779 | /// metadata. |
780 | void loadOffloadInfoMetadata(); |
781 | |
782 | /// Returns __tgt_offload_entry type. |
783 | QualType getTgtOffloadEntryQTy(); |
784 | |
785 | /// Start scanning from statement \a S and and emit all target regions |
786 | /// found along the way. |
787 | /// \param S Starting statement. |
788 | /// \param ParentName Name of the function declaration that is being scanned. |
789 | void scanForTargetRegionsFunctions(const Stmt *S, StringRef ParentName); |
790 | |
791 | /// Build type kmp_routine_entry_t (if not built yet). |
792 | void emitKmpRoutineEntryT(QualType KmpInt32Ty); |
793 | |
794 | /// Returns pointer to kmpc_micro type. |
795 | llvm::Type *getKmpc_MicroPointerTy(); |
796 | |
797 | /// Returns __kmpc_for_static_init_* runtime function for the specified |
798 | /// size \a IVSize and sign \a IVSigned. |
799 | llvm::FunctionCallee createForStaticInitFunction(unsigned IVSize, |
800 | bool IVSigned); |
801 | |
802 | /// Returns __kmpc_dispatch_init_* runtime function for the specified |
803 | /// size \a IVSize and sign \a IVSigned. |
804 | llvm::FunctionCallee createDispatchInitFunction(unsigned IVSize, |
805 | bool IVSigned); |
806 | |
807 | /// Returns __kmpc_dispatch_next_* runtime function for the specified |
808 | /// size \a IVSize and sign \a IVSigned. |
809 | llvm::FunctionCallee createDispatchNextFunction(unsigned IVSize, |
810 | bool IVSigned); |
811 | |
812 | /// Returns __kmpc_dispatch_fini_* runtime function for the specified |
813 | /// size \a IVSize and sign \a IVSigned. |
814 | llvm::FunctionCallee createDispatchFiniFunction(unsigned IVSize, |
815 | bool IVSigned); |
816 | |
817 | /// If the specified mangled name is not in the module, create and |
818 | /// return threadprivate cache object. This object is a pointer's worth of |
819 | /// storage that's reserved for use by the OpenMP runtime. |
820 | /// \param VD Threadprivate variable. |
821 | /// \return Cache variable for the specified threadprivate. |
822 | llvm::Constant *getOrCreateThreadPrivateCache(const VarDecl *VD); |
823 | |
824 | /// Gets (if variable with the given name already exist) or creates |
825 | /// internal global variable with the specified Name. The created variable has |
826 | /// linkage CommonLinkage by default and is initialized by null value. |
827 | /// \param Ty Type of the global variable. If it is exist already the type |
828 | /// must be the same. |
829 | /// \param Name Name of the variable. |
830 | llvm::Constant *getOrCreateInternalVariable(llvm::Type *Ty, |
831 | const llvm::Twine &Name, |
832 | unsigned AddressSpace = 0); |
833 | |
834 | /// Set of threadprivate variables with the generated initializer. |
835 | llvm::StringSet<> ThreadPrivateWithDefinition; |
836 | |
837 | /// Set of declare target variables with the generated initializer. |
838 | llvm::StringSet<> DeclareTargetWithDefinition; |
839 | |
840 | /// Emits initialization code for the threadprivate variables. |
841 | /// \param VDAddr Address of the global variable \a VD. |
842 | /// \param Ctor Pointer to a global init function for \a VD. |
843 | /// \param CopyCtor Pointer to a global copy function for \a VD. |
844 | /// \param Dtor Pointer to a global destructor function for \a VD. |
845 | /// \param Loc Location of threadprivate declaration. |
846 | void emitThreadPrivateVarInit(CodeGenFunction &CGF, Address VDAddr, |
847 | llvm::Value *Ctor, llvm::Value *CopyCtor, |
848 | llvm::Value *Dtor, SourceLocation Loc); |
849 | |
850 | /// Emit the array initialization or deletion portion for user-defined mapper |
851 | /// code generation. |
852 | void emitUDMapperArrayInitOrDel(CodeGenFunction &MapperCGF, |
853 | llvm::Value *Handle, llvm::Value *BasePtr, |
854 | llvm::Value *Ptr, llvm::Value *Size, |
855 | llvm::Value *MapType, llvm::Value *MapName, |
856 | CharUnits ElementSize, |
857 | llvm::BasicBlock *ExitBB, bool IsInit); |
858 | |
859 | struct TaskResultTy { |
860 | llvm::Value *NewTask = nullptr; |
861 | llvm::Function *TaskEntry = nullptr; |
862 | llvm::Value *NewTaskNewTaskTTy = nullptr; |
863 | LValue TDBase; |
864 | const RecordDecl *KmpTaskTQTyRD = nullptr; |
865 | llvm::Value *TaskDupFn = nullptr; |
866 | }; |
867 | /// Emit task region for the task directive. The task region is emitted in |
868 | /// several steps: |
869 | /// 1. Emit a call to kmp_task_t *__kmpc_omp_task_alloc(ident_t *, kmp_int32 |
870 | /// gtid, kmp_int32 flags, size_t sizeof_kmp_task_t, size_t sizeof_shareds, |
871 | /// kmp_routine_entry_t *task_entry). Here task_entry is a pointer to the |
872 | /// function: |
873 | /// kmp_int32 .omp_task_entry.(kmp_int32 gtid, kmp_task_t *tt) { |
874 | /// TaskFunction(gtid, tt->part_id, tt->shareds); |
875 | /// return 0; |
876 | /// } |
877 | /// 2. Copy a list of shared variables to field shareds of the resulting |
878 | /// structure kmp_task_t returned by the previous call (if any). |
879 | /// 3. Copy a pointer to destructions function to field destructions of the |
880 | /// resulting structure kmp_task_t. |
881 | /// \param D Current task directive. |
882 | /// \param TaskFunction An LLVM function with type void (*)(i32 /*gtid*/, i32 |
883 | /// /*part_id*/, captured_struct */*__context*/); |
884 | /// \param SharedsTy A type which contains references the shared variables. |
885 | /// \param Shareds Context with the list of shared variables from the \p |
886 | /// TaskFunction. |
887 | /// \param Data Additional data for task generation like tiednsee, final |
888 | /// state, list of privates etc. |
889 | TaskResultTy emitTaskInit(CodeGenFunction &CGF, SourceLocation Loc, |
890 | const OMPExecutableDirective &D, |
891 | llvm::Function *TaskFunction, QualType SharedsTy, |
892 | Address Shareds, const OMPTaskDataTy &Data); |
893 | |
894 | /// Emit code that pushes the trip count of loops associated with constructs |
895 | /// 'target teams distribute' and 'teams distribute parallel for'. |
896 | /// \param SizeEmitter Emits the int64 value for the number of iterations of |
897 | /// the associated loop. |
898 | void emitTargetNumIterationsCall( |
899 | CodeGenFunction &CGF, const OMPExecutableDirective &D, |
900 | llvm::Value *DeviceID, |
901 | llvm::function_ref<llvm::Value *(CodeGenFunction &CGF, |
902 | const OMPLoopDirective &D)> |
903 | SizeEmitter); |
904 | |
905 | /// Emit update for lastprivate conditional data. |
906 | void emitLastprivateConditionalUpdate(CodeGenFunction &CGF, LValue IVLVal, |
907 | StringRef UniqueDeclName, LValue LVal, |
908 | SourceLocation Loc); |
909 | |
910 | /// Returns the number of the elements and the address of the depobj |
911 | /// dependency array. |
912 | /// \return Number of elements in depobj array and the pointer to the array of |
913 | /// dependencies. |
914 | std::pair<llvm::Value *, LValue> getDepobjElements(CodeGenFunction &CGF, |
915 | LValue DepobjLVal, |
916 | SourceLocation Loc); |
917 | |
918 | public: |
919 | explicit CGOpenMPRuntime(CodeGenModule &CGM) |
920 | : CGOpenMPRuntime(CGM, ".", ".") {} |
921 | virtual ~CGOpenMPRuntime() {} |
922 | virtual void clear(); |
923 | |
924 | /// Emits code for OpenMP 'if' clause using specified \a CodeGen |
925 | /// function. Here is the logic: |
926 | /// if (Cond) { |
927 | /// ThenGen(); |
928 | /// } else { |
929 | /// ElseGen(); |
930 | /// } |
931 | void emitIfClause(CodeGenFunction &CGF, const Expr *Cond, |
932 | const RegionCodeGenTy &ThenGen, |
933 | const RegionCodeGenTy &ElseGen); |
934 | |
935 | /// Checks if the \p Body is the \a CompoundStmt and returns its child |
936 | /// statement iff there is only one that is not evaluatable at the compile |
937 | /// time. |
938 | static const Stmt *getSingleCompoundChild(ASTContext &Ctx, const Stmt *Body); |
939 | |
940 | /// Get the platform-specific name separator. |
941 | std::string getName(ArrayRef<StringRef> Parts) const; |
942 | |
943 | /// Emit code for the specified user defined reduction construct. |
944 | virtual void emitUserDefinedReduction(CodeGenFunction *CGF, |
945 | const OMPDeclareReductionDecl *D); |
946 | /// Get combiner/initializer for the specified user-defined reduction, if any. |
947 | virtual std::pair<llvm::Function *, llvm::Function *> |
948 | getUserDefinedReduction(const OMPDeclareReductionDecl *D); |
949 | |
950 | /// Emit the function for the user defined mapper construct. |
951 | void emitUserDefinedMapper(const OMPDeclareMapperDecl *D, |
952 | CodeGenFunction *CGF = nullptr); |
953 | /// Get the function for the specified user-defined mapper. If it does not |
954 | /// exist, create one. |
955 | llvm::Function * |
956 | getOrCreateUserDefinedMapperFunc(const OMPDeclareMapperDecl *D); |
957 | |
958 | /// Emits outlined function for the specified OpenMP parallel directive |
959 | /// \a D. This outlined function has type void(*)(kmp_int32 *ThreadID, |
960 | /// kmp_int32 BoundID, struct context_vars*). |
961 | /// \param D OpenMP directive. |
962 | /// \param ThreadIDVar Variable for thread id in the current OpenMP region. |
963 | /// \param InnermostKind Kind of innermost directive (for simple directives it |
964 | /// is a directive itself, for combined - its innermost directive). |
965 | /// \param CodeGen Code generation sequence for the \a D directive. |
966 | virtual llvm::Function *emitParallelOutlinedFunction( |
967 | const OMPExecutableDirective &D, const VarDecl *ThreadIDVar, |
968 | OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen); |
969 | |
970 | /// Emits outlined function for the specified OpenMP teams directive |
971 | /// \a D. This outlined function has type void(*)(kmp_int32 *ThreadID, |
972 | /// kmp_int32 BoundID, struct context_vars*). |
973 | /// \param D OpenMP directive. |
974 | /// \param ThreadIDVar Variable for thread id in the current OpenMP region. |
975 | /// \param InnermostKind Kind of innermost directive (for simple directives it |
976 | /// is a directive itself, for combined - its innermost directive). |
977 | /// \param CodeGen Code generation sequence for the \a D directive. |
978 | virtual llvm::Function *emitTeamsOutlinedFunction( |
979 | const OMPExecutableDirective &D, const VarDecl *ThreadIDVar, |
980 | OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen); |
981 | |
982 | /// Emits outlined function for the OpenMP task directive \a D. This |
983 | /// outlined function has type void(*)(kmp_int32 ThreadID, struct task_t* |
984 | /// TaskT). |
985 | /// \param D OpenMP directive. |
986 | /// \param ThreadIDVar Variable for thread id in the current OpenMP region. |
987 | /// \param PartIDVar Variable for partition id in the current OpenMP untied |
988 | /// task region. |
989 | /// \param TaskTVar Variable for task_t argument. |
990 | /// \param InnermostKind Kind of innermost directive (for simple directives it |
991 | /// is a directive itself, for combined - its innermost directive). |
992 | /// \param CodeGen Code generation sequence for the \a D directive. |
993 | /// \param Tied true if task is generated for tied task, false otherwise. |
994 | /// \param NumberOfParts Number of parts in untied task. Ignored for tied |
995 | /// tasks. |
996 | /// |
997 | virtual llvm::Function *emitTaskOutlinedFunction( |
998 | const OMPExecutableDirective &D, const VarDecl *ThreadIDVar, |
999 | const VarDecl *PartIDVar, const VarDecl *TaskTVar, |
1000 | OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen, |
1001 | bool Tied, unsigned &NumberOfParts); |
1002 | |
1003 | /// Cleans up references to the objects in finished function. |
1004 | /// |
1005 | virtual void functionFinished(CodeGenFunction &CGF); |
1006 | |
1007 | /// Emits code for parallel or serial call of the \a OutlinedFn with |
1008 | /// variables captured in a record which address is stored in \a |
1009 | /// CapturedStruct. |
1010 | /// \param OutlinedFn Outlined function to be run in parallel threads. Type of |
1011 | /// this function is void(*)(kmp_int32 *, kmp_int32, struct context_vars*). |
1012 | /// \param CapturedVars A pointer to the record with the references to |
1013 | /// variables used in \a OutlinedFn function. |
1014 | /// \param IfCond Condition in the associated 'if' clause, if it was |
1015 | /// specified, nullptr otherwise. |
1016 | /// |
1017 | virtual void emitParallelCall(CodeGenFunction &CGF, SourceLocation Loc, |
1018 | llvm::Function *OutlinedFn, |
1019 | ArrayRef<llvm::Value *> CapturedVars, |
1020 | const Expr *IfCond); |
1021 | |
1022 | /// Emits a critical region. |
1023 | /// \param CriticalName Name of the critical region. |
1024 | /// \param CriticalOpGen Generator for the statement associated with the given |
1025 | /// critical region. |
1026 | /// \param Hint Value of the 'hint' clause (optional). |
1027 | virtual void emitCriticalRegion(CodeGenFunction &CGF, StringRef CriticalName, |
1028 | const RegionCodeGenTy &CriticalOpGen, |
1029 | SourceLocation Loc, |
1030 | const Expr *Hint = nullptr); |
1031 | |
1032 | /// Emits a master region. |
1033 | /// \param MasterOpGen Generator for the statement associated with the given |
1034 | /// master region. |
1035 | virtual void emitMasterRegion(CodeGenFunction &CGF, |
1036 | const RegionCodeGenTy &MasterOpGen, |
1037 | SourceLocation Loc); |
1038 | |
1039 | /// Emits a masked region. |
1040 | /// \param MaskedOpGen Generator for the statement associated with the given |
1041 | /// masked region. |
1042 | virtual void emitMaskedRegion(CodeGenFunction &CGF, |
1043 | const RegionCodeGenTy &MaskedOpGen, |
1044 | SourceLocation Loc, |
1045 | const Expr *Filter = nullptr); |
1046 | |
1047 | /// Emits code for a taskyield directive. |
1048 | virtual void emitTaskyieldCall(CodeGenFunction &CGF, SourceLocation Loc); |
1049 | |
1050 | /// Emit a taskgroup region. |
1051 | /// \param TaskgroupOpGen Generator for the statement associated with the |
1052 | /// given taskgroup region. |
1053 | virtual void emitTaskgroupRegion(CodeGenFunction &CGF, |
1054 | const RegionCodeGenTy &TaskgroupOpGen, |
1055 | SourceLocation Loc); |
1056 | |
1057 | /// Emits a single region. |
1058 | /// \param SingleOpGen Generator for the statement associated with the given |
1059 | /// single region. |
1060 | virtual void emitSingleRegion(CodeGenFunction &CGF, |
1061 | const RegionCodeGenTy &SingleOpGen, |
1062 | SourceLocation Loc, |
1063 | ArrayRef<const Expr *> CopyprivateVars, |
1064 | ArrayRef<const Expr *> DestExprs, |
1065 | ArrayRef<const Expr *> SrcExprs, |
1066 | ArrayRef<const Expr *> AssignmentOps); |
1067 | |
1068 | /// Emit an ordered region. |
1069 | /// \param OrderedOpGen Generator for the statement associated with the given |
1070 | /// ordered region. |
1071 | virtual void emitOrderedRegion(CodeGenFunction &CGF, |
1072 | const RegionCodeGenTy &OrderedOpGen, |
1073 | SourceLocation Loc, bool IsThreads); |
1074 | |
1075 | /// Emit an implicit/explicit barrier for OpenMP threads. |
1076 | /// \param Kind Directive for which this implicit barrier call must be |
1077 | /// generated. Must be OMPD_barrier for explicit barrier generation. |
1078 | /// \param EmitChecks true if need to emit checks for cancellation barriers. |
1079 | /// \param ForceSimpleCall true simple barrier call must be emitted, false if |
1080 | /// runtime class decides which one to emit (simple or with cancellation |
1081 | /// checks). |
1082 | /// |
1083 | virtual void emitBarrierCall(CodeGenFunction &CGF, SourceLocation Loc, |
1084 | OpenMPDirectiveKind Kind, |
1085 | bool EmitChecks = true, |
1086 | bool ForceSimpleCall = false); |
1087 | |
1088 | /// Check if the specified \a ScheduleKind is static non-chunked. |
1089 | /// This kind of worksharing directive is emitted without outer loop. |
1090 | /// \param ScheduleKind Schedule kind specified in the 'schedule' clause. |
1091 | /// \param Chunked True if chunk is specified in the clause. |
1092 | /// |
1093 | virtual bool isStaticNonchunked(OpenMPScheduleClauseKind ScheduleKind, |
1094 | bool Chunked) const; |
1095 | |
1096 | /// Check if the specified \a ScheduleKind is static non-chunked. |
1097 | /// This kind of distribute directive is emitted without outer loop. |
1098 | /// \param ScheduleKind Schedule kind specified in the 'dist_schedule' clause. |
1099 | /// \param Chunked True if chunk is specified in the clause. |
1100 | /// |
1101 | virtual bool isStaticNonchunked(OpenMPDistScheduleClauseKind ScheduleKind, |
1102 | bool Chunked) const; |
1103 | |
1104 | /// Check if the specified \a ScheduleKind is static chunked. |
1105 | /// \param ScheduleKind Schedule kind specified in the 'schedule' clause. |
1106 | /// \param Chunked True if chunk is specified in the clause. |
1107 | /// |
1108 | virtual bool isStaticChunked(OpenMPScheduleClauseKind ScheduleKind, |
1109 | bool Chunked) const; |
1110 | |
1111 | /// Check if the specified \a ScheduleKind is static non-chunked. |
1112 | /// \param ScheduleKind Schedule kind specified in the 'dist_schedule' clause. |
1113 | /// \param Chunked True if chunk is specified in the clause. |
1114 | /// |
1115 | virtual bool isStaticChunked(OpenMPDistScheduleClauseKind ScheduleKind, |
1116 | bool Chunked) const; |
1117 | |
1118 | /// Check if the specified \a ScheduleKind is dynamic. |
1119 | /// This kind of worksharing directive is emitted without outer loop. |
1120 | /// \param ScheduleKind Schedule Kind specified in the 'schedule' clause. |
1121 | /// |
1122 | virtual bool isDynamic(OpenMPScheduleClauseKind ScheduleKind) const; |
1123 | |
1124 | /// struct with the values to be passed to the dispatch runtime function |
1125 | struct DispatchRTInput { |
1126 | /// Loop lower bound |
1127 | llvm::Value *LB = nullptr; |
1128 | /// Loop upper bound |
1129 | llvm::Value *UB = nullptr; |
1130 | /// Chunk size specified using 'schedule' clause (nullptr if chunk |
1131 | /// was not specified) |
1132 | llvm::Value *Chunk = nullptr; |
1133 | DispatchRTInput() = default; |
1134 | DispatchRTInput(llvm::Value *LB, llvm::Value *UB, llvm::Value *Chunk) |
1135 | : LB(LB), UB(UB), Chunk(Chunk) {} |
1136 | }; |
1137 | |
1138 | /// Call the appropriate runtime routine to initialize it before start |
1139 | /// of loop. |
1140 | |
1141 | /// This is used for non static scheduled types and when the ordered |
1142 | /// clause is present on the loop construct. |
1143 | /// Depending on the loop schedule, it is necessary to call some runtime |
1144 | /// routine before start of the OpenMP loop to get the loop upper / lower |
1145 | /// bounds \a LB and \a UB and stride \a ST. |
1146 | /// |
1147 | /// \param CGF Reference to current CodeGenFunction. |
1148 | /// \param Loc Clang source location. |
1149 | /// \param ScheduleKind Schedule kind, specified by the 'schedule' clause. |
1150 | /// \param IVSize Size of the iteration variable in bits. |
1151 | /// \param IVSigned Sign of the iteration variable. |
1152 | /// \param Ordered true if loop is ordered, false otherwise. |
1153 | /// \param DispatchValues struct containing llvm values for lower bound, upper |
1154 | /// bound, and chunk expression. |
1155 | /// For the default (nullptr) value, the chunk 1 will be used. |
1156 | /// |
1157 | virtual void emitForDispatchInit(CodeGenFunction &CGF, SourceLocation Loc, |
1158 | const OpenMPScheduleTy &ScheduleKind, |
1159 | unsigned IVSize, bool IVSigned, bool Ordered, |
1160 | const DispatchRTInput &DispatchValues); |
1161 | |
1162 | /// Struct with the values to be passed to the static runtime function |
1163 | struct StaticRTInput { |
1164 | /// Size of the iteration variable in bits. |
1165 | unsigned IVSize = 0; |
1166 | /// Sign of the iteration variable. |
1167 | bool IVSigned = false; |
1168 | /// true if loop is ordered, false otherwise. |
1169 | bool Ordered = false; |
1170 | /// Address of the output variable in which the flag of the last iteration |
1171 | /// is returned. |
1172 | Address IL = Address::invalid(); |
1173 | /// Address of the output variable in which the lower iteration number is |
1174 | /// returned. |
1175 | Address LB = Address::invalid(); |
1176 | /// Address of the output variable in which the upper iteration number is |
1177 | /// returned. |
1178 | Address UB = Address::invalid(); |
1179 | /// Address of the output variable in which the stride value is returned |
1180 | /// necessary to generated the static_chunked scheduled loop. |
1181 | Address ST = Address::invalid(); |
1182 | /// Value of the chunk for the static_chunked scheduled loop. For the |
1183 | /// default (nullptr) value, the chunk 1 will be used. |
1184 | llvm::Value *Chunk = nullptr; |
1185 | StaticRTInput(unsigned IVSize, bool IVSigned, bool Ordered, Address IL, |
1186 | Address LB, Address UB, Address ST, |
1187 | llvm::Value *Chunk = nullptr) |
1188 | : IVSize(IVSize), IVSigned(IVSigned), Ordered(Ordered), IL(IL), LB(LB), |
1189 | UB(UB), ST(ST), Chunk(Chunk) {} |
1190 | }; |
1191 | /// Call the appropriate runtime routine to initialize it before start |
1192 | /// of loop. |
1193 | /// |
1194 | /// This is used only in case of static schedule, when the user did not |
1195 | /// specify a ordered clause on the loop construct. |
1196 | /// Depending on the loop schedule, it is necessary to call some runtime |
1197 | /// routine before start of the OpenMP loop to get the loop upper / lower |
1198 | /// bounds LB and UB and stride ST. |
1199 | /// |
1200 | /// \param CGF Reference to current CodeGenFunction. |
1201 | /// \param Loc Clang source location. |
1202 | /// \param DKind Kind of the directive. |
1203 | /// \param ScheduleKind Schedule kind, specified by the 'schedule' clause. |
1204 | /// \param Values Input arguments for the construct. |
1205 | /// |
1206 | virtual void emitForStaticInit(CodeGenFunction &CGF, SourceLocation Loc, |
1207 | OpenMPDirectiveKind DKind, |
1208 | const OpenMPScheduleTy &ScheduleKind, |
1209 | const StaticRTInput &Values); |
1210 | |
1211 | /// |
1212 | /// \param CGF Reference to current CodeGenFunction. |
1213 | /// \param Loc Clang source location. |
1214 | /// \param SchedKind Schedule kind, specified by the 'dist_schedule' clause. |
1215 | /// \param Values Input arguments for the construct. |
1216 | /// |
1217 | virtual void emitDistributeStaticInit(CodeGenFunction &CGF, |
1218 | SourceLocation Loc, |
1219 | OpenMPDistScheduleClauseKind SchedKind, |
1220 | const StaticRTInput &Values); |
1221 | |
1222 | /// Call the appropriate runtime routine to notify that we finished |
1223 | /// iteration of the ordered loop with the dynamic scheduling. |
1224 | /// |
1225 | /// \param CGF Reference to current CodeGenFunction. |
1226 | /// \param Loc Clang source location. |
1227 | /// \param IVSize Size of the iteration variable in bits. |
1228 | /// \param IVSigned Sign of the iteration variable. |
1229 | /// |
1230 | virtual void emitForOrderedIterationEnd(CodeGenFunction &CGF, |
1231 | SourceLocation Loc, unsigned IVSize, |
1232 | bool IVSigned); |
1233 | |
1234 | /// Call the appropriate runtime routine to notify that we finished |
1235 | /// all the work with current loop. |
1236 | /// |
1237 | /// \param CGF Reference to current CodeGenFunction. |
1238 | /// \param Loc Clang source location. |
1239 | /// \param DKind Kind of the directive for which the static finish is emitted. |
1240 | /// |
1241 | virtual void emitForStaticFinish(CodeGenFunction &CGF, SourceLocation Loc, |
1242 | OpenMPDirectiveKind DKind); |
1243 | |
1244 | /// Call __kmpc_dispatch_next( |
1245 | /// ident_t *loc, kmp_int32 tid, kmp_int32 *p_lastiter, |
1246 | /// kmp_int[32|64] *p_lower, kmp_int[32|64] *p_upper, |
1247 | /// kmp_int[32|64] *p_stride); |
1248 | /// \param IVSize Size of the iteration variable in bits. |
1249 | /// \param IVSigned Sign of the iteration variable. |
1250 | /// \param IL Address of the output variable in which the flag of the |
1251 | /// last iteration is returned. |
1252 | /// \param LB Address of the output variable in which the lower iteration |
1253 | /// number is returned. |
1254 | /// \param UB Address of the output variable in which the upper iteration |
1255 | /// number is returned. |
1256 | /// \param ST Address of the output variable in which the stride value is |
1257 | /// returned. |
1258 | virtual llvm::Value *emitForNext(CodeGenFunction &CGF, SourceLocation Loc, |
1259 | unsigned IVSize, bool IVSigned, |
1260 | Address IL, Address LB, |
1261 | Address UB, Address ST); |
1262 | |
1263 | /// Emits call to void __kmpc_push_num_threads(ident_t *loc, kmp_int32 |
1264 | /// global_tid, kmp_int32 num_threads) to generate code for 'num_threads' |
1265 | /// clause. |
1266 | /// \param NumThreads An integer value of threads. |
1267 | virtual void emitNumThreadsClause(CodeGenFunction &CGF, |
1268 | llvm::Value *NumThreads, |
1269 | SourceLocation Loc); |
1270 | |
1271 | /// Emit call to void __kmpc_push_proc_bind(ident_t *loc, kmp_int32 |
1272 | /// global_tid, int proc_bind) to generate code for 'proc_bind' clause. |
1273 | virtual void emitProcBindClause(CodeGenFunction &CGF, |
1274 | llvm::omp::ProcBindKind ProcBind, |
1275 | SourceLocation Loc); |
1276 | |
1277 | /// Returns address of the threadprivate variable for the current |
1278 | /// thread. |
1279 | /// \param VD Threadprivate variable. |
1280 | /// \param VDAddr Address of the global variable \a VD. |
1281 | /// \param Loc Location of the reference to threadprivate var. |
1282 | /// \return Address of the threadprivate variable for the current thread. |
1283 | virtual Address getAddrOfThreadPrivate(CodeGenFunction &CGF, |
1284 | const VarDecl *VD, |
1285 | Address VDAddr, |
1286 | SourceLocation Loc); |
1287 | |
1288 | /// Returns the address of the variable marked as declare target with link |
1289 | /// clause OR as declare target with to clause and unified memory. |
1290 | virtual Address getAddrOfDeclareTargetVar(const VarDecl *VD); |
1291 | |
1292 | /// Emit a code for initialization of threadprivate variable. It emits |
1293 | /// a call to runtime library which adds initial value to the newly created |
1294 | /// threadprivate variable (if it is not constant) and registers destructor |
1295 | /// for the variable (if any). |
1296 | /// \param VD Threadprivate variable. |
1297 | /// \param VDAddr Address of the global variable \a VD. |
1298 | /// \param Loc Location of threadprivate declaration. |
1299 | /// \param PerformInit true if initialization expression is not constant. |
1300 | virtual llvm::Function * |
1301 | emitThreadPrivateVarDefinition(const VarDecl *VD, Address VDAddr, |
1302 | SourceLocation Loc, bool PerformInit, |
1303 | CodeGenFunction *CGF = nullptr); |
1304 | |
1305 | /// Emit a code for initialization of declare target variable. |
1306 | /// \param VD Declare target variable. |
1307 | /// \param Addr Address of the global variable \a VD. |
1308 | /// \param PerformInit true if initialization expression is not constant. |
1309 | virtual bool emitDeclareTargetVarDefinition(const VarDecl *VD, |
1310 | llvm::GlobalVariable *Addr, |
1311 | bool PerformInit); |
1312 | |
1313 | /// Creates artificial threadprivate variable with name \p Name and type \p |
1314 | /// VarType. |
1315 | /// \param VarType Type of the artificial threadprivate variable. |
1316 | /// \param Name Name of the artificial threadprivate variable. |
1317 | virtual Address getAddrOfArtificialThreadPrivate(CodeGenFunction &CGF, |
1318 | QualType VarType, |
1319 | StringRef Name); |
1320 | |
1321 | /// Emit flush of the variables specified in 'omp flush' directive. |
1322 | /// \param Vars List of variables to flush. |
1323 | virtual void emitFlush(CodeGenFunction &CGF, ArrayRef<const Expr *> Vars, |
1324 | SourceLocation Loc, llvm::AtomicOrdering AO); |
1325 | |
1326 | /// Emit task region for the task directive. The task region is |
1327 | /// emitted in several steps: |
1328 | /// 1. Emit a call to kmp_task_t *__kmpc_omp_task_alloc(ident_t *, kmp_int32 |
1329 | /// gtid, kmp_int32 flags, size_t sizeof_kmp_task_t, size_t sizeof_shareds, |
1330 | /// kmp_routine_entry_t *task_entry). Here task_entry is a pointer to the |
1331 | /// function: |
1332 | /// kmp_int32 .omp_task_entry.(kmp_int32 gtid, kmp_task_t *tt) { |
1333 | /// TaskFunction(gtid, tt->part_id, tt->shareds); |
1334 | /// return 0; |
1335 | /// } |
1336 | /// 2. Copy a list of shared variables to field shareds of the resulting |
1337 | /// structure kmp_task_t returned by the previous call (if any). |
1338 | /// 3. Copy a pointer to destructions function to field destructions of the |
1339 | /// resulting structure kmp_task_t. |
1340 | /// 4. Emit a call to kmp_int32 __kmpc_omp_task(ident_t *, kmp_int32 gtid, |
1341 | /// kmp_task_t *new_task), where new_task is a resulting structure from |
1342 | /// previous items. |
1343 | /// \param D Current task directive. |
1344 | /// \param TaskFunction An LLVM function with type void (*)(i32 /*gtid*/, i32 |
1345 | /// /*part_id*/, captured_struct */*__context*/); |
1346 | /// \param SharedsTy A type which contains references the shared variables. |
1347 | /// \param Shareds Context with the list of shared variables from the \p |
1348 | /// TaskFunction. |
1349 | /// \param IfCond Not a nullptr if 'if' clause was specified, nullptr |
1350 | /// otherwise. |
1351 | /// \param Data Additional data for task generation like tiednsee, final |
1352 | /// state, list of privates etc. |
1353 | virtual void emitTaskCall(CodeGenFunction &CGF, SourceLocation Loc, |
1354 | const OMPExecutableDirective &D, |
1355 | llvm::Function *TaskFunction, QualType SharedsTy, |
1356 | Address Shareds, const Expr *IfCond, |
1357 | const OMPTaskDataTy &Data); |
1358 | |
1359 | /// Emit task region for the taskloop directive. The taskloop region is |
1360 | /// emitted in several steps: |
1361 | /// 1. Emit a call to kmp_task_t *__kmpc_omp_task_alloc(ident_t *, kmp_int32 |
1362 | /// gtid, kmp_int32 flags, size_t sizeof_kmp_task_t, size_t sizeof_shareds, |
1363 | /// kmp_routine_entry_t *task_entry). Here task_entry is a pointer to the |
1364 | /// function: |
1365 | /// kmp_int32 .omp_task_entry.(kmp_int32 gtid, kmp_task_t *tt) { |
1366 | /// TaskFunction(gtid, tt->part_id, tt->shareds); |
1367 | /// return 0; |
1368 | /// } |
1369 | /// 2. Copy a list of shared variables to field shareds of the resulting |
1370 | /// structure kmp_task_t returned by the previous call (if any). |
1371 | /// 3. Copy a pointer to destructions function to field destructions of the |
1372 | /// resulting structure kmp_task_t. |
1373 | /// 4. Emit a call to void __kmpc_taskloop(ident_t *loc, int gtid, kmp_task_t |
1374 | /// *task, int if_val, kmp_uint64 *lb, kmp_uint64 *ub, kmp_int64 st, int |
1375 | /// nogroup, int sched, kmp_uint64 grainsize, void *task_dup ), where new_task |
1376 | /// is a resulting structure from |
1377 | /// previous items. |
1378 | /// \param D Current task directive. |
1379 | /// \param TaskFunction An LLVM function with type void (*)(i32 /*gtid*/, i32 |
1380 | /// /*part_id*/, captured_struct */*__context*/); |
1381 | /// \param SharedsTy A type which contains references the shared variables. |
1382 | /// \param Shareds Context with the list of shared variables from the \p |
1383 | /// TaskFunction. |
1384 | /// \param IfCond Not a nullptr if 'if' clause was specified, nullptr |
1385 | /// otherwise. |
1386 | /// \param Data Additional data for task generation like tiednsee, final |
1387 | /// state, list of privates etc. |
1388 | virtual void emitTaskLoopCall(CodeGenFunction &CGF, SourceLocation Loc, |
1389 | const OMPLoopDirective &D, |
1390 | llvm::Function *TaskFunction, |
1391 | QualType SharedsTy, Address Shareds, |
1392 | const Expr *IfCond, const OMPTaskDataTy &Data); |
1393 | |
1394 | /// Emit code for the directive that does not require outlining. |
1395 | /// |
1396 | /// \param InnermostKind Kind of innermost directive (for simple directives it |
1397 | /// is a directive itself, for combined - its innermost directive). |
1398 | /// \param CodeGen Code generation sequence for the \a D directive. |
1399 | /// \param HasCancel true if region has inner cancel directive, false |
1400 | /// otherwise. |
1401 | virtual void emitInlinedDirective(CodeGenFunction &CGF, |
1402 | OpenMPDirectiveKind InnermostKind, |
1403 | const RegionCodeGenTy &CodeGen, |
1404 | bool HasCancel = false); |
1405 | |
1406 | /// Emits reduction function. |
1407 | /// \param ArgsType Array type containing pointers to reduction variables. |
1408 | /// \param Privates List of private copies for original reduction arguments. |
1409 | /// \param LHSExprs List of LHS in \a ReductionOps reduction operations. |
1410 | /// \param RHSExprs List of RHS in \a ReductionOps reduction operations. |
1411 | /// \param ReductionOps List of reduction operations in form 'LHS binop RHS' |
1412 | /// or 'operator binop(LHS, RHS)'. |
1413 | llvm::Function *emitReductionFunction(SourceLocation Loc, |
1414 | llvm::Type *ArgsType, |
1415 | ArrayRef<const Expr *> Privates, |
1416 | ArrayRef<const Expr *> LHSExprs, |
1417 | ArrayRef<const Expr *> RHSExprs, |
1418 | ArrayRef<const Expr *> ReductionOps); |
1419 | |
1420 | /// Emits single reduction combiner |
1421 | void emitSingleReductionCombiner(CodeGenFunction &CGF, |
1422 | const Expr *ReductionOp, |
1423 | const Expr *PrivateRef, |
1424 | const DeclRefExpr *LHS, |
1425 | const DeclRefExpr *RHS); |
1426 | |
1427 | struct ReductionOptionsTy { |
1428 | bool WithNowait; |
1429 | bool SimpleReduction; |
1430 | OpenMPDirectiveKind ReductionKind; |
1431 | }; |
1432 | /// Emit a code for reduction clause. Next code should be emitted for |
1433 | /// reduction: |
1434 | /// \code |
1435 | /// |
1436 | /// static kmp_critical_name lock = { 0 }; |
1437 | /// |
1438 | /// void reduce_func(void *lhs[<n>], void *rhs[<n>]) { |
1439 | /// ... |
1440 | /// *(Type<i>*)lhs[i] = RedOp<i>(*(Type<i>*)lhs[i], *(Type<i>*)rhs[i]); |
1441 | /// ... |
1442 | /// } |
1443 | /// |
1444 | /// ... |
1445 | /// void *RedList[<n>] = {&<RHSExprs>[0], ..., &<RHSExprs>[<n>-1]}; |
1446 | /// switch (__kmpc_reduce{_nowait}(<loc>, <gtid>, <n>, sizeof(RedList), |
1447 | /// RedList, reduce_func, &<lock>)) { |
1448 | /// case 1: |
1449 | /// ... |
1450 | /// <LHSExprs>[i] = RedOp<i>(*<LHSExprs>[i], *<RHSExprs>[i]); |
1451 | /// ... |
1452 | /// __kmpc_end_reduce{_nowait}(<loc>, <gtid>, &<lock>); |
1453 | /// break; |
1454 | /// case 2: |
1455 | /// ... |
1456 | /// Atomic(<LHSExprs>[i] = RedOp<i>(*<LHSExprs>[i], *<RHSExprs>[i])); |
1457 | /// ... |
1458 | /// break; |
1459 | /// default:; |
1460 | /// } |
1461 | /// \endcode |
1462 | /// |
1463 | /// \param Privates List of private copies for original reduction arguments. |
1464 | /// \param LHSExprs List of LHS in \a ReductionOps reduction operations. |
1465 | /// \param RHSExprs List of RHS in \a ReductionOps reduction operations. |
1466 | /// \param ReductionOps List of reduction operations in form 'LHS binop RHS' |
1467 | /// or 'operator binop(LHS, RHS)'. |
1468 | /// \param Options List of options for reduction codegen: |
1469 | /// WithNowait true if parent directive has also nowait clause, false |
1470 | /// otherwise. |
1471 | /// SimpleReduction Emit reduction operation only. Used for omp simd |
1472 | /// directive on the host. |
1473 | /// ReductionKind The kind of reduction to perform. |
1474 | virtual void emitReduction(CodeGenFunction &CGF, SourceLocation Loc, |
1475 | ArrayRef<const Expr *> Privates, |
1476 | ArrayRef<const Expr *> LHSExprs, |
1477 | ArrayRef<const Expr *> RHSExprs, |
1478 | ArrayRef<const Expr *> ReductionOps, |
1479 | ReductionOptionsTy Options); |
1480 | |
1481 | /// Emit a code for initialization of task reduction clause. Next code |
1482 | /// should be emitted for reduction: |
1483 | /// \code |
1484 | /// |
1485 | /// _taskred_item_t red_data[n]; |
1486 | /// ... |
1487 | /// red_data[i].shar = &shareds[i]; |
1488 | /// red_data[i].orig = &origs[i]; |
1489 | /// red_data[i].size = sizeof(origs[i]); |
1490 | /// red_data[i].f_init = (void*)RedInit<i>; |
1491 | /// red_data[i].f_fini = (void*)RedDest<i>; |
1492 | /// red_data[i].f_comb = (void*)RedOp<i>; |
1493 | /// red_data[i].flags = <Flag_i>; |
1494 | /// ... |
1495 | /// void* tg1 = __kmpc_taskred_init(gtid, n, red_data); |
1496 | /// \endcode |
1497 | /// For reduction clause with task modifier it emits the next call: |
1498 | /// \code |
1499 | /// |
1500 | /// _taskred_item_t red_data[n]; |
1501 | /// ... |
1502 | /// red_data[i].shar = &shareds[i]; |
1503 | /// red_data[i].orig = &origs[i]; |
1504 | /// red_data[i].size = sizeof(origs[i]); |
1505 | /// red_data[i].f_init = (void*)RedInit<i>; |
1506 | /// red_data[i].f_fini = (void*)RedDest<i>; |
1507 | /// red_data[i].f_comb = (void*)RedOp<i>; |
1508 | /// red_data[i].flags = <Flag_i>; |
1509 | /// ... |
1510 | /// void* tg1 = __kmpc_taskred_modifier_init(loc, gtid, is_worksharing, n, |
1511 | /// red_data); |
1512 | /// \endcode |
1513 | /// \param LHSExprs List of LHS in \a Data.ReductionOps reduction operations. |
1514 | /// \param RHSExprs List of RHS in \a Data.ReductionOps reduction operations. |
1515 | /// \param Data Additional data for task generation like tiedness, final |
1516 | /// state, list of privates, reductions etc. |
1517 | virtual llvm::Value *emitTaskReductionInit(CodeGenFunction &CGF, |
1518 | SourceLocation Loc, |
1519 | ArrayRef<const Expr *> LHSExprs, |
1520 | ArrayRef<const Expr *> RHSExprs, |
1521 | const OMPTaskDataTy &Data); |
1522 | |
1523 | /// Emits the following code for reduction clause with task modifier: |
1524 | /// \code |
1525 | /// __kmpc_task_reduction_modifier_fini(loc, gtid, is_worksharing); |
1526 | /// \endcode |
1527 | virtual void emitTaskReductionFini(CodeGenFunction &CGF, SourceLocation Loc, |
1528 | bool IsWorksharingReduction); |
1529 | |
1530 | /// Required to resolve existing problems in the runtime. Emits threadprivate |
1531 | /// variables to store the size of the VLAs/array sections for |
1532 | /// initializer/combiner/finalizer functions. |
1533 | /// \param RCG Allows to reuse an existing data for the reductions. |
1534 | /// \param N Reduction item for which fixups must be emitted. |
1535 | virtual void emitTaskReductionFixups(CodeGenFunction &CGF, SourceLocation Loc, |
1536 | ReductionCodeGen &RCG, unsigned N); |
1537 | |
1538 | /// Get the address of `void *` type of the privatue copy of the reduction |
1539 | /// item specified by the \p SharedLVal. |
1540 | /// \param ReductionsPtr Pointer to the reduction data returned by the |
1541 | /// emitTaskReductionInit function. |
1542 | /// \param SharedLVal Address of the original reduction item. |
1543 | virtual Address getTaskReductionItem(CodeGenFunction &CGF, SourceLocation Loc, |
1544 | llvm::Value *ReductionsPtr, |
1545 | LValue SharedLVal); |
1546 | |
1547 | /// Emit code for 'taskwait' directive. |
1548 | virtual void emitTaskwaitCall(CodeGenFunction &CGF, SourceLocation Loc); |
1549 | |
1550 | /// Emit code for 'cancellation point' construct. |
1551 | /// \param CancelRegion Region kind for which the cancellation point must be |
1552 | /// emitted. |
1553 | /// |
1554 | virtual void emitCancellationPointCall(CodeGenFunction &CGF, |
1555 | SourceLocation Loc, |
1556 | OpenMPDirectiveKind CancelRegion); |
1557 | |
1558 | /// Emit code for 'cancel' construct. |
1559 | /// \param IfCond Condition in the associated 'if' clause, if it was |
1560 | /// specified, nullptr otherwise. |
1561 | /// \param CancelRegion Region kind for which the cancel must be emitted. |
1562 | /// |
1563 | virtual void emitCancelCall(CodeGenFunction &CGF, SourceLocation Loc, |
1564 | const Expr *IfCond, |
1565 | OpenMPDirectiveKind CancelRegion); |
1566 | |
1567 | /// Emit outilined function for 'target' directive. |
1568 | /// \param D Directive to emit. |
1569 | /// \param ParentName Name of the function that encloses the target region. |
1570 | /// \param OutlinedFn Outlined function value to be defined by this call. |
1571 | /// \param OutlinedFnID Outlined function ID value to be defined by this call. |
1572 | /// \param IsOffloadEntry True if the outlined function is an offload entry. |
1573 | /// \param CodeGen Code generation sequence for the \a D directive. |
1574 | /// An outlined function may not be an entry if, e.g. the if clause always |
1575 | /// evaluates to false. |
1576 | virtual void emitTargetOutlinedFunction(const OMPExecutableDirective &D, |
1577 | StringRef ParentName, |
1578 | llvm::Function *&OutlinedFn, |
1579 | llvm::Constant *&OutlinedFnID, |
1580 | bool IsOffloadEntry, |
1581 | const RegionCodeGenTy &CodeGen); |
1582 | |
1583 | /// Emit the target offloading code associated with \a D. The emitted |
1584 | /// code attempts offloading the execution to the device, an the event of |
1585 | /// a failure it executes the host version outlined in \a OutlinedFn. |
1586 | /// \param D Directive to emit. |
1587 | /// \param OutlinedFn Host version of the code to be offloaded. |
1588 | /// \param OutlinedFnID ID of host version of the code to be offloaded. |
1589 | /// \param IfCond Expression evaluated in if clause associated with the target |
1590 | /// directive, or null if no if clause is used. |
1591 | /// \param Device Expression evaluated in device clause associated with the |
1592 | /// target directive, or null if no device clause is used and device modifier. |
1593 | /// \param SizeEmitter Callback to emit number of iterations for loop-based |
1594 | /// directives. |
1595 | virtual void emitTargetCall( |
1596 | CodeGenFunction &CGF, const OMPExecutableDirective &D, |
1597 | llvm::Function *OutlinedFn, llvm::Value *OutlinedFnID, const Expr *IfCond, |
1598 | llvm::PointerIntPair<const Expr *, 2, OpenMPDeviceClauseModifier> Device, |
1599 | llvm::function_ref<llvm::Value *(CodeGenFunction &CGF, |
1600 | const OMPLoopDirective &D)> |
1601 | SizeEmitter); |
1602 | |
1603 | /// Emit the target regions enclosed in \a GD function definition or |
1604 | /// the function itself in case it is a valid device function. Returns true if |
1605 | /// \a GD was dealt with successfully. |
1606 | /// \param GD Function to scan. |
1607 | virtual bool emitTargetFunctions(GlobalDecl GD); |
1608 | |
1609 | /// Emit the global variable if it is a valid device global variable. |
1610 | /// Returns true if \a GD was dealt with successfully. |
1611 | /// \param GD Variable declaration to emit. |
1612 | virtual bool emitTargetGlobalVariable(GlobalDecl GD); |
1613 | |
1614 | /// Checks if the provided global decl \a GD is a declare target variable and |
1615 | /// registers it when emitting code for the host. |
1616 | virtual void registerTargetGlobalVariable(const VarDecl *VD, |
1617 | llvm::Constant *Addr); |
1618 | |
1619 | /// Emit the global \a GD if it is meaningful for the target. Returns |
1620 | /// if it was emitted successfully. |
1621 | /// \param GD Global to scan. |
1622 | virtual bool emitTargetGlobal(GlobalDecl GD); |
1623 | |
1624 | /// Creates and returns a registration function for when at least one |
1625 | /// requires directives was used in the current module. |
1626 | llvm::Function *emitRequiresDirectiveRegFun(); |
1627 | |
1628 | /// Creates all the offload entries in the current compilation unit |
1629 | /// along with the associated metadata. |
1630 | void createOffloadEntriesAndInfoMetadata(); |
1631 | |
1632 | /// Emits code for teams call of the \a OutlinedFn with |
1633 | /// variables captured in a record which address is stored in \a |
1634 | /// CapturedStruct. |
1635 | /// \param OutlinedFn Outlined function to be run by team masters. Type of |
1636 | /// this function is void(*)(kmp_int32 *, kmp_int32, struct context_vars*). |
1637 | /// \param CapturedVars A pointer to the record with the references to |
1638 | /// variables used in \a OutlinedFn function. |
1639 | /// |
1640 | virtual void emitTeamsCall(CodeGenFunction &CGF, |
1641 | const OMPExecutableDirective &D, |
1642 | SourceLocation Loc, llvm::Function *OutlinedFn, |
1643 | ArrayRef<llvm::Value *> CapturedVars); |
1644 | |
1645 | /// Emits call to void __kmpc_push_num_teams(ident_t *loc, kmp_int32 |
1646 | /// global_tid, kmp_int32 num_teams, kmp_int32 thread_limit) to generate code |
1647 | /// for num_teams clause. |
1648 | /// \param NumTeams An integer expression of teams. |
1649 | /// \param ThreadLimit An integer expression of threads. |
1650 | virtual void emitNumTeamsClause(CodeGenFunction &CGF, const Expr *NumTeams, |
1651 | const Expr *ThreadLimit, SourceLocation Loc); |
1652 | |
1653 | /// Struct that keeps all the relevant information that should be kept |
1654 | /// throughout a 'target data' region. |
1655 | class TargetDataInfo { |
1656 | /// Set to true if device pointer information have to be obtained. |
1657 | bool RequiresDevicePointerInfo = false; |
1658 | /// Set to true if Clang emits separate runtime calls for the beginning and |
1659 | /// end of the region. These calls might have separate map type arrays. |
1660 | bool SeparateBeginEndCalls = false; |
1661 | |
1662 | public: |
1663 | /// The array of base pointer passed to the runtime library. |
1664 | llvm::Value *BasePointersArray = nullptr; |
1665 | /// The array of section pointers passed to the runtime library. |
1666 | llvm::Value *PointersArray = nullptr; |
1667 | /// The array of sizes passed to the runtime library. |
1668 | llvm::Value *SizesArray = nullptr; |
1669 | /// The array of map types passed to the runtime library for the beginning |
1670 | /// of the region or for the entire region if there are no separate map |
1671 | /// types for the region end. |
1672 | llvm::Value *MapTypesArray = nullptr; |
1673 | /// The array of map types passed to the runtime library for the end of the |
1674 | /// region, or nullptr if there are no separate map types for the region |
1675 | /// end. |
1676 | llvm::Value *MapTypesArrayEnd = nullptr; |
1677 | /// The array of user-defined mappers passed to the runtime library. |
1678 | llvm::Value *MappersArray = nullptr; |
1679 | /// The array of original declaration names of mapped pointers sent to the |
1680 | /// runtime library for debugging |
1681 | llvm::Value *MapNamesArray = nullptr; |
1682 | /// Indicate whether any user-defined mapper exists. |
1683 | bool HasMapper = false; |
1684 | /// The total number of pointers passed to the runtime library. |
1685 | unsigned NumberOfPtrs = 0u; |
1686 | /// Map between the a declaration of a capture and the corresponding base |
1687 | /// pointer address where the runtime returns the device pointers. |
1688 | llvm::DenseMap<const ValueDecl *, Address> CaptureDeviceAddrMap; |
1689 | |
1690 | explicit TargetDataInfo() {} |
1691 | explicit TargetDataInfo(bool RequiresDevicePointerInfo, |
1692 | bool SeparateBeginEndCalls) |
1693 | : RequiresDevicePointerInfo(RequiresDevicePointerInfo), |
1694 | SeparateBeginEndCalls(SeparateBeginEndCalls) {} |
1695 | /// Clear information about the data arrays. |
1696 | void clearArrayInfo() { |
1697 | BasePointersArray = nullptr; |
1698 | PointersArray = nullptr; |
1699 | SizesArray = nullptr; |
1700 | MapTypesArray = nullptr; |
1701 | MapTypesArrayEnd = nullptr; |
1702 | MapNamesArray = nullptr; |
1703 | MappersArray = nullptr; |
1704 | HasMapper = false; |
1705 | NumberOfPtrs = 0u; |
1706 | } |
1707 | /// Return true if the current target data information has valid arrays. |
1708 | bool isValid() { |
1709 | return BasePointersArray && PointersArray && SizesArray && |
1710 | MapTypesArray && (!HasMapper || MappersArray) && NumberOfPtrs; |
1711 | } |
1712 | bool requiresDevicePointerInfo() { return RequiresDevicePointerInfo; } |
1713 | bool separateBeginEndCalls() { return SeparateBeginEndCalls; } |
1714 | }; |
1715 | |
1716 | /// Emit the target data mapping code associated with \a D. |
1717 | /// \param D Directive to emit. |
1718 | /// \param IfCond Expression evaluated in if clause associated with the |
1719 | /// target directive, or null if no device clause is used. |
1720 | /// \param Device Expression evaluated in device clause associated with the |
1721 | /// target directive, or null if no device clause is used. |
1722 | /// \param Info A record used to store information that needs to be preserved |
1723 | /// until the region is closed. |
1724 | virtual void emitTargetDataCalls(CodeGenFunction &CGF, |
1725 | const OMPExecutableDirective &D, |
1726 | const Expr *IfCond, const Expr *Device, |
1727 | const RegionCodeGenTy &CodeGen, |
1728 | TargetDataInfo &Info); |
1729 | |
1730 | /// Emit the data mapping/movement code associated with the directive |
1731 | /// \a D that should be of the form 'target [{enter|exit} data | update]'. |
1732 | /// \param D Directive to emit. |
1733 | /// \param IfCond Expression evaluated in if clause associated with the target |
1734 | /// directive, or null if no if clause is used. |
1735 | /// \param Device Expression evaluated in device clause associated with the |
1736 | /// target directive, or null if no device clause is used. |
1737 | virtual void emitTargetDataStandAloneCall(CodeGenFunction &CGF, |
1738 | const OMPExecutableDirective &D, |
1739 | const Expr *IfCond, |
1740 | const Expr *Device); |
1741 | |
1742 | /// Marks function \a Fn with properly mangled versions of vector functions. |
1743 | /// \param FD Function marked as 'declare simd'. |
1744 | /// \param Fn LLVM function that must be marked with 'declare simd' |
1745 | /// attributes. |
1746 | virtual void emitDeclareSimdFunction(const FunctionDecl *FD, |
1747 | llvm::Function *Fn); |
1748 | |
1749 | /// Emit initialization for doacross loop nesting support. |
1750 | /// \param D Loop-based construct used in doacross nesting construct. |
1751 | virtual void emitDoacrossInit(CodeGenFunction &CGF, const OMPLoopDirective &D, |
1752 | ArrayRef<Expr *> NumIterations); |
1753 | |
1754 | /// Emit code for doacross ordered directive with 'depend' clause. |
1755 | /// \param C 'depend' clause with 'sink|source' dependency kind. |
1756 | virtual void emitDoacrossOrdered(CodeGenFunction &CGF, |
1757 | const OMPDependClause *C); |
1758 | |
1759 | /// Translates the native parameter of outlined function if this is required |
1760 | /// for target. |
1761 | /// \param FD Field decl from captured record for the parameter. |
1762 | /// \param NativeParam Parameter itself. |
1763 | virtual const VarDecl *translateParameter(const FieldDecl *FD, |
1764 | const VarDecl *NativeParam) const { |
1765 | return NativeParam; |
1766 | } |
1767 | |
1768 | /// Gets the address of the native argument basing on the address of the |
1769 | /// target-specific parameter. |
1770 | /// \param NativeParam Parameter itself. |
1771 | /// \param TargetParam Corresponding target-specific parameter. |
1772 | virtual Address getParameterAddress(CodeGenFunction &CGF, |
1773 | const VarDecl *NativeParam, |
1774 | const VarDecl *TargetParam) const; |
1775 | |
1776 | /// Choose default schedule type and chunk value for the |
1777 | /// dist_schedule clause. |
1778 | virtual void getDefaultDistScheduleAndChunk(CodeGenFunction &CGF, |
1779 | const OMPLoopDirective &S, OpenMPDistScheduleClauseKind &ScheduleKind, |
1780 | llvm::Value *&Chunk) const {} |
1781 | |
1782 | /// Choose default schedule type and chunk value for the |
1783 | /// schedule clause. |
1784 | virtual void getDefaultScheduleAndChunk(CodeGenFunction &CGF, |
1785 | const OMPLoopDirective &S, OpenMPScheduleClauseKind &ScheduleKind, |
1786 | const Expr *&ChunkExpr) const; |
1787 | |
1788 | /// Emits call of the outlined function with the provided arguments, |
1789 | /// translating these arguments to correct target-specific arguments. |
1790 | virtual void |
1791 | emitOutlinedFunctionCall(CodeGenFunction &CGF, SourceLocation Loc, |
1792 | llvm::FunctionCallee OutlinedFn, |
1793 | ArrayRef<llvm::Value *> Args = llvm::None) const; |
1794 | |
1795 | /// Emits OpenMP-specific function prolog. |
1796 | /// Required for device constructs. |
1797 | virtual void emitFunctionProlog(CodeGenFunction &CGF, const Decl *D); |
1798 | |
1799 | /// Gets the OpenMP-specific address of the local variable. |
1800 | virtual Address getAddressOfLocalVariable(CodeGenFunction &CGF, |
1801 | const VarDecl *VD); |
1802 | |
1803 | /// Marks the declaration as already emitted for the device code and returns |
1804 | /// true, if it was marked already, and false, otherwise. |
1805 | bool markAsGlobalTarget(GlobalDecl GD); |
1806 | |
1807 | /// Emit deferred declare target variables marked for deferred emission. |
1808 | void emitDeferredTargetDecls() const; |
1809 | |
1810 | /// Adjust some parameters for the target-based directives, like addresses of |
1811 | /// the variables captured by reference in lambdas. |
1812 | virtual void |
1813 | adjustTargetSpecificDataForLambdas(CodeGenFunction &CGF, |
1814 | const OMPExecutableDirective &D) const; |
1815 | |
1816 | /// Perform check on requires decl to ensure that target architecture |
1817 | /// supports unified addressing |
1818 | virtual void processRequiresDirective(const OMPRequiresDecl *D); |
1819 | |
1820 | /// Gets default memory ordering as specified in requires directive. |
1821 | llvm::AtomicOrdering getDefaultMemoryOrdering() const; |
1822 | |
1823 | /// Checks if the variable has associated OMPAllocateDeclAttr attribute with |
1824 | /// the predefined allocator and translates it into the corresponding address |
1825 | /// space. |
1826 | virtual bool hasAllocateAttributeForGlobalVar(const VarDecl *VD, LangAS &AS); |
1827 | |
1828 | /// Return whether the unified_shared_memory has been specified. |
1829 | bool hasRequiresUnifiedSharedMemory() const; |
1830 | |
1831 | /// Checks if the \p VD variable is marked as nontemporal declaration in |
1832 | /// current context. |
1833 | bool isNontemporalDecl(const ValueDecl *VD) const; |
1834 | |
1835 | /// Create specialized alloca to handle lastprivate conditionals. |
1836 | Address emitLastprivateConditionalInit(CodeGenFunction &CGF, |
1837 | const VarDecl *VD); |
1838 | |
1839 | /// Checks if the provided \p LVal is lastprivate conditional and emits the |
1840 | /// code to update the value of the original variable. |
1841 | /// \code |
1842 | /// lastprivate(conditional: a) |
1843 | /// ... |
1844 | /// <type> a; |
1845 | /// lp_a = ...; |
1846 | /// #pragma omp critical(a) |
1847 | /// if (last_iv_a <= iv) { |
1848 | /// last_iv_a = iv; |
1849 | /// global_a = lp_a; |
1850 | /// } |
1851 | /// \endcode |
1852 | virtual void checkAndEmitLastprivateConditional(CodeGenFunction &CGF, |
1853 | const Expr *LHS); |
1854 | |
1855 | /// Checks if the lastprivate conditional was updated in inner region and |
1856 | /// writes the value. |
1857 | /// \code |
1858 | /// lastprivate(conditional: a) |
1859 | /// ... |
1860 | /// <type> a;bool Fired = false; |
1861 | /// #pragma omp ... shared(a) |
1862 | /// { |
1863 | /// lp_a = ...; |
1864 | /// Fired = true; |
1865 | /// } |
1866 | /// if (Fired) { |
1867 | /// #pragma omp critical(a) |
1868 | /// if (last_iv_a <= iv) { |
1869 | /// last_iv_a = iv; |
1870 | /// global_a = lp_a; |
1871 | /// } |
1872 | /// Fired = false; |
1873 | /// } |
1874 | /// \endcode |
1875 | virtual void checkAndEmitSharedLastprivateConditional( |
1876 | CodeGenFunction &CGF, const OMPExecutableDirective &D, |
1877 | const llvm::DenseSet<CanonicalDeclPtr<const VarDecl>> &IgnoredDecls); |
1878 | |
1879 | /// Gets the address of the global copy used for lastprivate conditional |
1880 | /// update, if any. |
1881 | /// \param PrivLVal LValue for the private copy. |
1882 | /// \param VD Original lastprivate declaration. |
1883 | virtual void emitLastprivateConditionalFinalUpdate(CodeGenFunction &CGF, |
1884 | LValue PrivLVal, |
1885 | const VarDecl *VD, |
1886 | SourceLocation Loc); |
1887 | |
1888 | /// Emits list of dependecies based on the provided data (array of |
1889 | /// dependence/expression pairs). |
1890 | /// \returns Pointer to the first element of the array casted to VoidPtr type. |
1891 | std::pair<llvm::Value *, Address> |
1892 | emitDependClause(CodeGenFunction &CGF, |
1893 | ArrayRef<OMPTaskDataTy::DependData> Dependencies, |
1894 | SourceLocation Loc); |
1895 | |
1896 | /// Emits list of dependecies based on the provided data (array of |
1897 | /// dependence/expression pairs) for depobj construct. In this case, the |
1898 | /// variable is allocated in dynamically. \returns Pointer to the first |
1899 | /// element of the array casted to VoidPtr type. |
1900 | Address emitDepobjDependClause(CodeGenFunction &CGF, |
1901 | const OMPTaskDataTy::DependData &Dependencies, |
1902 | SourceLocation Loc); |
1903 | |
1904 | /// Emits the code to destroy the dependency object provided in depobj |
1905 | /// directive. |
1906 | void emitDestroyClause(CodeGenFunction &CGF, LValue DepobjLVal, |
1907 | SourceLocation Loc); |
1908 | |
1909 | /// Updates the dependency kind in the specified depobj object. |
1910 | /// \param DepobjLVal LValue for the main depobj object. |
1911 | /// \param NewDepKind New dependency kind. |
1912 | void emitUpdateClause(CodeGenFunction &CGF, LValue DepobjLVal, |
1913 | OpenMPDependClauseKind NewDepKind, SourceLocation Loc); |
1914 | |
1915 | /// Initializes user defined allocators specified in the uses_allocators |
1916 | /// clauses. |
1917 | void emitUsesAllocatorsInit(CodeGenFunction &CGF, const Expr *Allocator, |
1918 | const Expr *AllocatorTraits); |
1919 | |
1920 | /// Destroys user defined allocators specified in the uses_allocators clause. |
1921 | void emitUsesAllocatorsFini(CodeGenFunction &CGF, const Expr *Allocator); |
1922 | |
1923 | /// Returns true if the variable is a local variable in untied task. |
1924 | bool isLocalVarInUntiedTask(CodeGenFunction &CGF, const VarDecl *VD) const; |
1925 | }; |
1926 | |
1927 | /// Class supports emissionof SIMD-only code. |
1928 | class CGOpenMPSIMDRuntime final : public CGOpenMPRuntime { |
1929 | public: |
1930 | explicit CGOpenMPSIMDRuntime(CodeGenModule &CGM) : CGOpenMPRuntime(CGM) {} |
1931 | ~CGOpenMPSIMDRuntime() override {} |
1932 | |
1933 | /// Emits outlined function for the specified OpenMP parallel directive |
1934 | /// \a D. This outlined function has type void(*)(kmp_int32 *ThreadID, |
1935 | /// kmp_int32 BoundID, struct context_vars*). |
1936 | /// \param D OpenMP directive. |
1937 | /// \param ThreadIDVar Variable for thread id in the current OpenMP region. |
1938 | /// \param InnermostKind Kind of innermost directive (for simple directives it |
1939 | /// is a directive itself, for combined - its innermost directive). |
1940 | /// \param CodeGen Code generation sequence for the \a D directive. |
1941 | llvm::Function * |
1942 | emitParallelOutlinedFunction(const OMPExecutableDirective &D, |
1943 | const VarDecl *ThreadIDVar, |
1944 | OpenMPDirectiveKind InnermostKind, |
1945 | const RegionCodeGenTy &CodeGen) override; |
1946 | |
1947 | /// Emits outlined function for the specified OpenMP teams directive |
1948 | /// \a D. This outlined function has type void(*)(kmp_int32 *ThreadID, |
1949 | /// kmp_int32 BoundID, struct context_vars*). |
1950 | /// \param D OpenMP directive. |
1951 | /// \param ThreadIDVar Variable for thread id in the current OpenMP region. |
1952 | /// \param InnermostKind Kind of innermost directive (for simple directives it |
1953 | /// is a directive itself, for combined - its innermost directive). |
1954 | /// \param CodeGen Code generation sequence for the \a D directive. |
1955 | llvm::Function * |
1956 | emitTeamsOutlinedFunction(const OMPExecutableDirective &D, |
1957 | const VarDecl *ThreadIDVar, |
1958 | OpenMPDirectiveKind InnermostKind, |
1959 | const RegionCodeGenTy &CodeGen) override; |
1960 | |
1961 | /// Emits outlined function for the OpenMP task directive \a D. This |
1962 | /// outlined function has type void(*)(kmp_int32 ThreadID, struct task_t* |
1963 | /// TaskT). |
1964 | /// \param D OpenMP directive. |
1965 | /// \param ThreadIDVar Variable for thread id in the current OpenMP region. |
1966 | /// \param PartIDVar Variable for partition id in the current OpenMP untied |
1967 | /// task region. |
1968 | /// \param TaskTVar Variable for task_t argument. |
1969 | /// \param InnermostKind Kind of innermost directive (for simple directives it |
1970 | /// is a directive itself, for combined - its innermost directive). |
1971 | /// \param CodeGen Code generation sequence for the \a D directive. |
1972 | /// \param Tied true if task is generated for tied task, false otherwise. |
1973 | /// \param NumberOfParts Number of parts in untied task. Ignored for tied |
1974 | /// tasks. |
1975 | /// |
1976 | llvm::Function *emitTaskOutlinedFunction( |
1977 | const OMPExecutableDirective &D, const VarDecl *ThreadIDVar, |
1978 | const VarDecl *PartIDVar, const VarDecl *TaskTVar, |
1979 | OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen, |
1980 | bool Tied, unsigned &NumberOfParts) override; |
1981 | |
1982 | /// Emits code for parallel or serial call of the \a OutlinedFn with |
1983 | /// variables captured in a record which address is stored in \a |
1984 | /// CapturedStruct. |
1985 | /// \param OutlinedFn Outlined function to be run in parallel threads. Type of |
1986 | /// this function is void(*)(kmp_int32 *, kmp_int32, struct context_vars*). |
1987 | /// \param CapturedVars A pointer to the record with the references to |
1988 | /// variables used in \a OutlinedFn function. |
1989 | /// \param IfCond Condition in the associated 'if' clause, if it was |
1990 | /// specified, nullptr otherwise. |
1991 | /// |
1992 | void emitParallelCall(CodeGenFunction &CGF, SourceLocation Loc, |
1993 | llvm::Function *OutlinedFn, |
1994 | ArrayRef<llvm::Value *> CapturedVars, |
1995 | const Expr *IfCond) override; |
1996 | |
1997 | /// Emits a critical region. |
1998 | /// \param CriticalName Name of the critical region. |
1999 | /// \param CriticalOpGen Generator for the statement associated with the given |
2000 | /// critical region. |
2001 | /// \param Hint Value of the 'hint' clause (optional). |
2002 | void emitCriticalRegion(CodeGenFunction &CGF, StringRef CriticalName, |
2003 | const RegionCodeGenTy &CriticalOpGen, |
2004 | SourceLocation Loc, |
2005 | const Expr *Hint = nullptr) override; |
2006 | |
2007 | /// Emits a master region. |
2008 | /// \param MasterOpGen Generator for the statement associated with the given |
2009 | /// master region. |
2010 | void emitMasterRegion(CodeGenFunction &CGF, |
2011 | const RegionCodeGenTy &MasterOpGen, |
2012 | SourceLocation Loc) override; |
2013 | |
2014 | /// Emits a masked region. |
2015 | /// \param MaskedOpGen Generator for the statement associated with the given |
2016 | /// masked region. |
2017 | void emitMaskedRegion(CodeGenFunction &CGF, |
2018 | const RegionCodeGenTy &MaskedOpGen, SourceLocation Loc, |
2019 | const Expr *Filter = nullptr) override; |
2020 | |
2021 | /// Emits a masked region. |
2022 | /// \param MaskedOpGen Generator for the statement associated with the given |
2023 | /// masked region. |
2024 | |
2025 | /// Emits code for a taskyield directive. |
2026 | void emitTaskyieldCall(CodeGenFunction &CGF, SourceLocation Loc) override; |
2027 | |
2028 | /// Emit a taskgroup region. |
2029 | /// \param TaskgroupOpGen Generator for the statement associated with the |
2030 | /// given taskgroup region. |
2031 | void emitTaskgroupRegion(CodeGenFunction &CGF, |
2032 | const RegionCodeGenTy &TaskgroupOpGen, |
2033 | SourceLocation Loc) override; |
2034 | |
2035 | /// Emits a single region. |
2036 | /// \param SingleOpGen Generator for the statement associated with the given |
2037 | /// single region. |
2038 | void emitSingleRegion(CodeGenFunction &CGF, |
2039 | const RegionCodeGenTy &SingleOpGen, SourceLocation Loc, |
2040 | ArrayRef<const Expr *> CopyprivateVars, |
2041 | ArrayRef<const Expr *> DestExprs, |
2042 | ArrayRef<const Expr *> SrcExprs, |
2043 | ArrayRef<const Expr *> AssignmentOps) override; |
2044 | |
2045 | /// Emit an ordered region. |
2046 | /// \param OrderedOpGen Generator for the statement associated with the given |
2047 | /// ordered region. |
2048 | void emitOrderedRegion(CodeGenFunction &CGF, |
2049 | const RegionCodeGenTy &OrderedOpGen, |
2050 | SourceLocation Loc, bool IsThreads) override; |
2051 | |
2052 | /// Emit an implicit/explicit barrier for OpenMP threads. |
2053 | /// \param Kind Directive for which this implicit barrier call must be |
2054 | /// generated. Must be OMPD_barrier for explicit barrier generation. |
2055 | /// \param EmitChecks true if need to emit checks for cancellation barriers. |
2056 | /// \param ForceSimpleCall true simple barrier call must be emitted, false if |
2057 | /// runtime class decides which one to emit (simple or with cancellation |
2058 | /// checks). |
2059 | /// |
2060 | void emitBarrierCall(CodeGenFunction &CGF, SourceLocation Loc, |
2061 | OpenMPDirectiveKind Kind, bool EmitChecks = true, |
2062 | bool ForceSimpleCall = false) override; |
2063 | |
2064 | /// This is used for non static scheduled types and when the ordered |
2065 | /// clause is present on the loop construct. |
2066 | /// Depending on the loop schedule, it is necessary to call some runtime |
2067 | /// routine before start of the OpenMP loop to get the loop upper / lower |
2068 | /// bounds \a LB and \a UB and stride \a ST. |
2069 | /// |
2070 | /// \param CGF Reference to current CodeGenFunction. |
2071 | /// \param Loc Clang source location. |
2072 | /// \param ScheduleKind Schedule kind, specified by the 'schedule' clause. |
2073 | /// \param IVSize Size of the iteration variable in bits. |
2074 | /// \param IVSigned Sign of the iteration variable. |
2075 | /// \param Ordered true if loop is ordered, false otherwise. |
2076 | /// \param DispatchValues struct containing llvm values for lower bound, upper |
2077 | /// bound, and chunk expression. |
2078 | /// For the default (nullptr) value, the chunk 1 will be used. |
2079 | /// |
2080 | void emitForDispatchInit(CodeGenFunction &CGF, SourceLocation Loc, |
2081 | const OpenMPScheduleTy &ScheduleKind, |
2082 | unsigned IVSize, bool IVSigned, bool Ordered, |
2083 | const DispatchRTInput &DispatchValues) override; |
2084 | |
2085 | /// Call the appropriate runtime routine to initialize it before start |
2086 | /// of loop. |
2087 | /// |
2088 | /// This is used only in case of static schedule, when the user did not |
2089 | /// specify a ordered clause on the loop construct. |
2090 | /// Depending on the loop schedule, it is necessary to call some runtime |
2091 | /// routine before start of the OpenMP loop to get the loop upper / lower |
2092 | /// bounds LB and UB and stride ST. |
2093 | /// |
2094 | /// \param CGF Reference to current CodeGenFunction. |
2095 | /// \param Loc Clang source location. |
2096 | /// \param DKind Kind of the directive. |
2097 | /// \param ScheduleKind Schedule kind, specified by the 'schedule' clause. |
2098 | /// \param Values Input arguments for the construct. |
2099 | /// |
2100 | void emitForStaticInit(CodeGenFunction &CGF, SourceLocation Loc, |
2101 | OpenMPDirectiveKind DKind, |
2102 | const OpenMPScheduleTy &ScheduleKind, |
2103 | const StaticRTInput &Values) override; |
2104 | |
2105 | /// |
2106 | /// \param CGF Reference to current CodeGenFunction. |
2107 | /// \param Loc Clang source location. |
2108 | /// \param SchedKind Schedule kind, specified by the 'dist_schedule' clause. |
2109 | /// \param Values Input arguments for the construct. |
2110 | /// |
2111 | void emitDistributeStaticInit(CodeGenFunction &CGF, SourceLocation Loc, |
2112 | OpenMPDistScheduleClauseKind SchedKind, |
2113 | const StaticRTInput &Values) override; |
2114 | |
2115 | /// Call the appropriate runtime routine to notify that we finished |
2116 | /// iteration of the ordered loop with the dynamic scheduling. |
2117 | /// |
2118 | /// \param CGF Reference to current CodeGenFunction. |
2119 | /// \param Loc Clang source location. |
2120 | /// \param IVSize Size of the iteration variable in bits. |
2121 | /// \param IVSigned Sign of the iteration variable. |
2122 | /// |
2123 | void emitForOrderedIterationEnd(CodeGenFunction &CGF, SourceLocation Loc, |
2124 | unsigned IVSize, bool IVSigned) override; |
2125 | |
2126 | /// Call the appropriate runtime routine to notify that we finished |
2127 | /// all the work with current loop. |
2128 | /// |
2129 | /// \param CGF Reference to current CodeGenFunction. |
2130 | /// \param Loc Clang source location. |
2131 | /// \param DKind Kind of the directive for which the static finish is emitted. |
2132 | /// |
2133 | void emitForStaticFinish(CodeGenFunction &CGF, SourceLocation Loc, |
2134 | OpenMPDirectiveKind DKind) override; |
2135 | |
2136 | /// Call __kmpc_dispatch_next( |
2137 | /// ident_t *loc, kmp_int32 tid, kmp_int32 *p_lastiter, |
2138 | /// kmp_int[32|64] *p_lower, kmp_int[32|64] *p_upper, |
2139 | /// kmp_int[32|64] *p_stride); |
2140 | /// \param IVSize Size of the iteration variable in bits. |
2141 | /// \param IVSigned Sign of the iteration variable. |
2142 | /// \param IL Address of the output variable in which the flag of the |
2143 | /// last iteration is returned. |
2144 | /// \param LB Address of the output variable in which the lower iteration |
2145 | /// number is returned. |
2146 | /// \param UB Address of the output variable in which the upper iteration |
2147 | /// number is returned. |
2148 | /// \param ST Address of the output variable in which the stride value is |
2149 | /// returned. |
2150 | llvm::Value *emitForNext(CodeGenFunction &CGF, SourceLocation Loc, |
2151 | unsigned IVSize, bool IVSigned, Address IL, |
2152 | Address LB, Address UB, Address ST) override; |
2153 | |
2154 | /// Emits call to void __kmpc_push_num_threads(ident_t *loc, kmp_int32 |
2155 | /// global_tid, kmp_int32 num_threads) to generate code for 'num_threads' |
2156 | /// clause. |
2157 | /// \param NumThreads An integer value of threads. |
2158 | void emitNumThreadsClause(CodeGenFunction &CGF, llvm::Value *NumThreads, |
2159 | SourceLocation Loc) override; |
2160 | |
2161 | /// Emit call to void __kmpc_push_proc_bind(ident_t *loc, kmp_int32 |
2162 | /// global_tid, int proc_bind) to generate code for 'proc_bind' clause. |
2163 | void emitProcBindClause(CodeGenFunction &CGF, |
2164 | llvm::omp::ProcBindKind ProcBind, |
2165 | SourceLocation Loc) override; |
2166 | |
2167 | /// Returns address of the threadprivate variable for the current |
2168 | /// thread. |
2169 | /// \param VD Threadprivate variable. |
2170 | /// \param VDAddr Address of the global variable \a VD. |
2171 | /// \param Loc Location of the reference to threadprivate var. |
2172 | /// \return Address of the threadprivate variable for the current thread. |
2173 | Address getAddrOfThreadPrivate(CodeGenFunction &CGF, const VarDecl *VD, |
2174 | Address VDAddr, SourceLocation Loc) override; |
2175 | |
2176 | /// Emit a code for initialization of threadprivate variable. It emits |
2177 | /// a call to runtime library which adds initial value to the newly created |
2178 | /// threadprivate variable (if it is not constant) and registers destructor |
2179 | /// for the variable (if any). |
2180 | /// \param VD Threadprivate variable. |
2181 | /// \param VDAddr Address of the global variable \a VD. |
2182 | /// \param Loc Location of threadprivate declaration. |
2183 | /// \param PerformInit true if initialization expression is not constant. |
2184 | llvm::Function * |
2185 | emitThreadPrivateVarDefinition(const VarDecl *VD, Address VDAddr, |
2186 | SourceLocation Loc, bool PerformInit, |
2187 | CodeGenFunction *CGF = nullptr) override; |
2188 | |
2189 | /// Creates artificial threadprivate variable with name \p Name and type \p |
2190 | /// VarType. |
2191 | /// \param VarType Type of the artificial threadprivate variable. |
2192 | /// \param Name Name of the artificial threadprivate variable. |
2193 | Address getAddrOfArtificialThreadPrivate(CodeGenFunction &CGF, |
2194 | QualType VarType, |
2195 | StringRef Name) override; |
2196 | |
2197 | /// Emit flush of the variables specified in 'omp flush' directive. |
2198 | /// \param Vars List of variables to flush. |
2199 | void emitFlush(CodeGenFunction &CGF, ArrayRef<const Expr *> Vars, |
2200 | SourceLocation Loc, llvm::AtomicOrdering AO) override; |
2201 | |
2202 | /// Emit task region for the task directive. The task region is |
2203 | /// emitted in several steps: |
2204 | /// 1. Emit a call to kmp_task_t *__kmpc_omp_task_alloc(ident_t *, kmp_int32 |
2205 | /// gtid, kmp_int32 flags, size_t sizeof_kmp_task_t, size_t sizeof_shareds, |
2206 | /// kmp_routine_entry_t *task_entry). Here task_entry is a pointer to the |
2207 | /// function: |
2208 | /// kmp_int32 .omp_task_entry.(kmp_int32 gtid, kmp_task_t *tt) { |
2209 | /// TaskFunction(gtid, tt->part_id, tt->shareds); |
2210 | /// return 0; |
2211 | /// } |
2212 | /// 2. Copy a list of shared variables to field shareds of the resulting |
2213 | /// structure kmp_task_t returned by the previous call (if any). |
2214 | /// 3. Copy a pointer to destructions function to field destructions of the |
2215 | /// resulting structure kmp_task_t. |
2216 | /// 4. Emit a call to kmp_int32 __kmpc_omp_task(ident_t *, kmp_int32 gtid, |
2217 | /// kmp_task_t *new_task), where new_task is a resulting structure from |
2218 | /// previous items. |
2219 | /// \param D Current task directive. |
2220 | /// \param TaskFunction An LLVM function with type void (*)(i32 /*gtid*/, i32 |
2221 | /// /*part_id*/, captured_struct */*__context*/); |
2222 | /// \param SharedsTy A type which contains references the shared variables. |
2223 | /// \param Shareds Context with the list of shared variables from the \p |
2224 | /// TaskFunction. |
2225 | /// \param IfCond Not a nullptr if 'if' clause was specified, nullptr |
2226 | /// otherwise. |
2227 | /// \param Data Additional data for task generation like tiednsee, final |
2228 | /// state, list of privates etc. |
2229 | void emitTaskCall(CodeGenFunction &CGF, SourceLocation Loc, |
2230 | const OMPExecutableDirective &D, |
2231 | llvm::Function *TaskFunction, QualType SharedsTy, |
2232 | Address Shareds, const Expr *IfCond, |
2233 | const OMPTaskDataTy &Data) override; |
2234 | |
2235 | /// Emit task region for the taskloop directive. The taskloop region is |
2236 | /// emitted in several steps: |
2237 | /// 1. Emit a call to kmp_task_t *__kmpc_omp_task_alloc(ident_t *, kmp_int32 |
2238 | /// gtid, kmp_int32 flags, size_t sizeof_kmp_task_t, size_t sizeof_shareds, |
2239 | /// kmp_routine_entry_t *task_entry). Here task_entry is a pointer to the |
2240 | /// function: |
2241 | /// kmp_int32 .omp_task_entry.(kmp_int32 gtid, kmp_task_t *tt) { |
2242 | /// TaskFunction(gtid, tt->part_id, tt->shareds); |
2243 | /// return 0; |
2244 | /// } |
2245 | /// 2. Copy a list of shared variables to field shareds of the resulting |
2246 | /// structure kmp_task_t returned by the previous call (if any). |
2247 | /// 3. Copy a pointer to destructions function to field destructions of the |
2248 | /// resulting structure kmp_task_t. |
2249 | /// 4. Emit a call to void __kmpc_taskloop(ident_t *loc, int gtid, kmp_task_t |
2250 | /// *task, int if_val, kmp_uint64 *lb, kmp_uint64 *ub, kmp_int64 st, int |
2251 | /// nogroup, int sched, kmp_uint64 grainsize, void *task_dup ), where new_task |
2252 | /// is a resulting structure from |
2253 | /// previous items. |
2254 | /// \param D Current task directive. |
2255 | /// \param TaskFunction An LLVM function with type void (*)(i32 /*gtid*/, i32 |
2256 | /// /*part_id*/, captured_struct */*__context*/); |
2257 | /// \param SharedsTy A type which contains references the shared variables. |
2258 | /// \param Shareds Context with the list of shared variables from the \p |
2259 | /// TaskFunction. |
2260 | /// \param IfCond Not a nullptr if 'if' clause was specified, nullptr |
2261 | /// otherwise. |
2262 | /// \param Data Additional data for task generation like tiednsee, final |
2263 | /// state, list of privates etc. |
2264 | void emitTaskLoopCall(CodeGenFunction &CGF, SourceLocation Loc, |
2265 | const OMPLoopDirective &D, llvm::Function *TaskFunction, |
2266 | QualType SharedsTy, Address Shareds, const Expr *IfCond, |
2267 | const OMPTaskDataTy &Data) override; |
2268 | |
2269 | /// Emit a code for reduction clause. Next code should be emitted for |
2270 | /// reduction: |
2271 | /// \code |
2272 | /// |
2273 | /// static kmp_critical_name lock = { 0 }; |
2274 | /// |
2275 | /// void reduce_func(void *lhs[<n>], void *rhs[<n>]) { |
2276 | /// ... |
2277 | /// *(Type<i>*)lhs[i] = RedOp<i>(*(Type<i>*)lhs[i], *(Type<i>*)rhs[i]); |
2278 | /// ... |
2279 | /// } |
2280 | /// |
2281 | /// ... |
2282 | /// void *RedList[<n>] = {&<RHSExprs>[0], ..., &<RHSExprs>[<n>-1]}; |
2283 | /// switch (__kmpc_reduce{_nowait}(<loc>, <gtid>, <n>, sizeof(RedList), |
2284 | /// RedList, reduce_func, &<lock>)) { |
2285 | /// case 1: |
2286 | /// ... |
2287 | /// <LHSExprs>[i] = RedOp<i>(*<LHSExprs>[i], *<RHSExprs>[i]); |
2288 | /// ... |
2289 | /// __kmpc_end_reduce{_nowait}(<loc>, <gtid>, &<lock>); |
2290 | /// break; |
2291 | /// case 2: |
2292 | /// ... |
2293 | /// Atomic(<LHSExprs>[i] = RedOp<i>(*<LHSExprs>[i], *<RHSExprs>[i])); |
2294 | /// ... |
2295 | /// break; |
2296 | /// default:; |
2297 | /// } |
2298 | /// \endcode |
2299 | /// |
2300 | /// \param Privates List of private copies for original reduction arguments. |
2301 | /// \param LHSExprs List of LHS in \a ReductionOps reduction operations. |
2302 | /// \param RHSExprs List of RHS in \a ReductionOps reduction operations. |
2303 | /// \param ReductionOps List of reduction operations in form 'LHS binop RHS' |
2304 | /// or 'operator binop(LHS, RHS)'. |
2305 | /// \param Options List of options for reduction codegen: |
2306 | /// WithNowait true if parent directive has also nowait clause, false |
2307 | /// otherwise. |
2308 | /// SimpleReduction Emit reduction operation only. Used for omp simd |
2309 | /// directive on the host. |
2310 | /// ReductionKind The kind of reduction to perform. |
2311 | void emitReduction(CodeGenFunction &CGF, SourceLocation Loc, |
2312 | ArrayRef<const Expr *> Privates, |
2313 | ArrayRef<const Expr *> LHSExprs, |
2314 | ArrayRef<const Expr *> RHSExprs, |
2315 | ArrayRef<const Expr *> ReductionOps, |
2316 | ReductionOptionsTy Options) override; |
2317 | |
2318 | /// Emit a code for initialization of task reduction clause. Next code |
2319 | /// should be emitted for reduction: |
2320 | /// \code |
2321 | /// |
2322 | /// _taskred_item_t red_data[n]; |
2323 | /// ... |
2324 | /// red_data[i].shar = &shareds[i]; |
2325 | /// red_data[i].orig = &origs[i]; |
2326 | /// red_data[i].size = sizeof(origs[i]); |
2327 | /// red_data[i].f_init = (void*)RedInit<i>; |
2328 | /// red_data[i].f_fini = (void*)RedDest<i>; |
2329 | /// red_data[i].f_comb = (void*)RedOp<i>; |
2330 | /// red_data[i].flags = <Flag_i>; |
2331 | /// ... |
2332 | /// void* tg1 = __kmpc_taskred_init(gtid, n, red_data); |
2333 | /// \endcode |
2334 | /// For reduction clause with task modifier it emits the next call: |
2335 | /// \code |
2336 | /// |
2337 | /// _taskred_item_t red_data[n]; |
2338 | /// ... |
2339 | /// red_data[i].shar = &shareds[i]; |
2340 | /// red_data[i].orig = &origs[i]; |
2341 | /// red_data[i].size = sizeof(origs[i]); |
2342 | /// red_data[i].f_init = (void*)RedInit<i>; |
2343 | /// red_data[i].f_fini = (void*)RedDest<i>; |
2344 | /// red_data[i].f_comb = (void*)RedOp<i>; |
2345 | /// red_data[i].flags = <Flag_i>; |
2346 | /// ... |
2347 | /// void* tg1 = __kmpc_taskred_modifier_init(loc, gtid, is_worksharing, n, |
2348 | /// red_data); |
2349 | /// \endcode |
2350 | /// \param LHSExprs List of LHS in \a Data.ReductionOps reduction operations. |
2351 | /// \param RHSExprs List of RHS in \a Data.ReductionOps reduction operations. |
2352 | /// \param Data Additional data for task generation like tiedness, final |
2353 | /// state, list of privates, reductions etc. |
2354 | llvm::Value *emitTaskReductionInit(CodeGenFunction &CGF, SourceLocation Loc, |
2355 | ArrayRef<const Expr *> LHSExprs, |
2356 | ArrayRef<const Expr *> RHSExprs, |
2357 | const OMPTaskDataTy &Data) override; |
2358 | |
2359 | /// Emits the following code for reduction clause with task modifier: |
2360 | /// \code |
2361 | /// __kmpc_task_reduction_modifier_fini(loc, gtid, is_worksharing); |
2362 | /// \endcode |
2363 | void emitTaskReductionFini(CodeGenFunction &CGF, SourceLocation Loc, |
2364 | bool IsWorksharingReduction) override; |
2365 | |
2366 | /// Required to resolve existing problems in the runtime. Emits threadprivate |
2367 | /// variables to store the size of the VLAs/array sections for |
2368 | /// initializer/combiner/finalizer functions + emits threadprivate variable to |
2369 | /// store the pointer to the original reduction item for the custom |
2370 | /// initializer defined by declare reduction construct. |
2371 | /// \param RCG Allows to reuse an existing data for the reductions. |
2372 | /// \param N Reduction item for which fixups must be emitted. |
2373 | void emitTaskReductionFixups(CodeGenFunction &CGF, SourceLocation Loc, |
2374 | ReductionCodeGen &RCG, unsigned N) override; |
2375 | |
2376 | /// Get the address of `void *` type of the privatue copy of the reduction |
2377 | /// item specified by the \p SharedLVal. |
2378 | /// \param ReductionsPtr Pointer to the reduction data returned by the |
2379 | /// emitTaskReductionInit function. |
2380 | /// \param SharedLVal Address of the original reduction item. |
2381 | Address getTaskReductionItem(CodeGenFunction &CGF, SourceLocation Loc, |
2382 | llvm::Value *ReductionsPtr, |
2383 | LValue SharedLVal) override; |
2384 | |
2385 | /// Emit code for 'taskwait' directive. |
2386 | void emitTaskwaitCall(CodeGenFunction &CGF, SourceLocation Loc) override; |
2387 | |
2388 | /// Emit code for 'cancellation point' construct. |
2389 | /// \param CancelRegion Region kind for which the cancellation point must be |
2390 | /// emitted. |
2391 | /// |
2392 | void emitCancellationPointCall(CodeGenFunction &CGF, SourceLocation Loc, |
2393 | OpenMPDirectiveKind CancelRegion) override; |
2394 | |
2395 | /// Emit code for 'cancel' construct. |
2396 | /// \param IfCond Condition in the associated 'if' clause, if it was |
2397 | /// specified, nullptr otherwise. |
2398 | /// \param CancelRegion Region kind for which the cancel must be emitted. |
2399 | /// |
2400 | void emitCancelCall(CodeGenFunction &CGF, SourceLocation Loc, |
2401 | const Expr *IfCond, |
2402 | OpenMPDirectiveKind CancelRegion) override; |
2403 | |
2404 | /// Emit outilined function for 'target' directive. |
2405 | /// \param D Directive to emit. |
2406 | /// \param ParentName Name of the function that encloses the target region. |
2407 | /// \param OutlinedFn Outlined function value to be defined by this call. |
2408 | /// \param OutlinedFnID Outlined function ID value to be defined by this call. |
2409 | /// \param IsOffloadEntry True if the outlined function is an offload entry. |
2410 | /// \param CodeGen Code generation sequence for the \a D directive. |
2411 | /// An outlined function may not be an entry if, e.g. the if clause always |
2412 | /// evaluates to false. |
2413 | void emitTargetOutlinedFunction(const OMPExecutableDirective &D, |
2414 | StringRef ParentName, |
2415 | llvm::Function *&OutlinedFn, |
2416 | llvm::Constant *&OutlinedFnID, |
2417 | bool IsOffloadEntry, |
2418 | const RegionCodeGenTy &CodeGen) override; |
2419 | |
2420 | /// Emit the target offloading code associated with \a D. The emitted |
2421 | /// code attempts offloading the execution to the device, an the event of |
2422 | /// a failure it executes the host version outlined in \a OutlinedFn. |
2423 | /// \param D Directive to emit. |
2424 | /// \param OutlinedFn Host version of the code to be offloaded. |
2425 | /// \param OutlinedFnID ID of host version of the code to be offloaded. |
2426 | /// \param IfCond Expression evaluated in if clause associated with the target |
2427 | /// directive, or null if no if clause is used. |
2428 | /// \param Device Expression evaluated in device clause associated with the |
2429 | /// target directive, or null if no device clause is used and device modifier. |
2430 | void emitTargetCall( |
2431 | CodeGenFunction &CGF, const OMPExecutableDirective &D, |
2432 | llvm::Function *OutlinedFn, llvm::Value *OutlinedFnID, const Expr *IfCond, |
2433 | llvm::PointerIntPair<const Expr *, 2, OpenMPDeviceClauseModifier> Device, |
2434 | llvm::function_ref<llvm::Value *(CodeGenFunction &CGF, |
2435 | const OMPLoopDirective &D)> |
2436 | SizeEmitter) override; |
2437 | |
2438 | /// Emit the target regions enclosed in \a GD function definition or |
2439 | /// the function itself in case it is a valid device function. Returns true if |
2440 | /// \a GD was dealt with successfully. |
2441 | /// \param GD Function to scan. |
2442 | bool emitTargetFunctions(GlobalDecl GD) override; |
2443 | |
2444 | /// Emit the global variable if it is a valid device global variable. |
2445 | /// Returns true if \a GD was dealt with successfully. |
2446 | /// \param GD Variable declaration to emit. |
2447 | bool emitTargetGlobalVariable(GlobalDecl GD) override; |
2448 | |
2449 | /// Emit the global \a GD if it is meaningful for the target. Returns |
2450 | /// if it was emitted successfully. |
2451 | /// \param GD Global to scan. |
2452 | bool emitTargetGlobal(GlobalDecl GD) override; |
2453 | |
2454 | /// Emits code for teams call of the \a OutlinedFn with |
2455 | /// variables captured in a record which address is stored in \a |
2456 | /// CapturedStruct. |
2457 | /// \param OutlinedFn Outlined function to be run by team masters. Type of |
2458 | /// this function is void(*)(kmp_int32 *, kmp_int32, struct context_vars*). |
2459 | /// \param CapturedVars A pointer to the record with the references to |
2460 | /// variables used in \a OutlinedFn function. |
2461 | /// |
2462 | void emitTeamsCall(CodeGenFunction &CGF, const OMPExecutableDirective &D, |
2463 | SourceLocation Loc, llvm::Function *OutlinedFn, |
2464 | ArrayRef<llvm::Value *> CapturedVars) override; |
2465 | |
2466 | /// Emits call to void __kmpc_push_num_teams(ident_t *loc, kmp_int32 |
2467 | /// global_tid, kmp_int32 num_teams, kmp_int32 thread_limit) to generate code |
2468 | /// for num_teams clause. |
2469 | /// \param NumTeams An integer expression of teams. |
2470 | /// \param ThreadLimit An integer expression of threads. |
2471 | void emitNumTeamsClause(CodeGenFunction &CGF, const Expr *NumTeams, |
2472 | const Expr *ThreadLimit, SourceLocation Loc) override; |
2473 | |
2474 | /// Emit the target data mapping code associated with \a D. |
2475 | /// \param D Directive to emit. |
2476 | /// \param IfCond Expression evaluated in if clause associated with the |
2477 | /// target directive, or null if no device clause is used. |
2478 | /// \param Device Expression evaluated in device clause associated with the |
2479 | /// target directive, or null if no device clause is used. |
2480 | /// \param Info A record used to store information that needs to be preserved |
2481 | /// until the region is closed. |
2482 | void emitTargetDataCalls(CodeGenFunction &CGF, |
2483 | const OMPExecutableDirective &D, const Expr *IfCond, |
2484 | const Expr *Device, const RegionCodeGenTy &CodeGen, |
2485 | TargetDataInfo &Info) override; |
2486 | |
2487 | /// Emit the data mapping/movement code associated with the directive |
2488 | /// \a D that should be of the form 'target [{enter|exit} data | update]'. |
2489 | /// \param D Directive to emit. |
2490 | /// \param IfCond Expression evaluated in if clause associated with the target |
2491 | /// directive, or null if no if clause is used. |
2492 | /// \param Device Expression evaluated in device clause associated with the |
2493 | /// target directive, or null if no device clause is used. |
2494 | void emitTargetDataStandAloneCall(CodeGenFunction &CGF, |
2495 | const OMPExecutableDirective &D, |
2496 | const Expr *IfCond, |
2497 | const Expr *Device) override; |
2498 | |
2499 | /// Emit initialization for doacross loop nesting support. |
2500 | /// \param D Loop-based construct used in doacross nesting construct. |
2501 | void emitDoacrossInit(CodeGenFunction &CGF, const OMPLoopDirective &D, |
2502 | ArrayRef<Expr *> NumIterations) override; |
2503 | |
2504 | /// Emit code for doacross ordered directive with 'depend' clause. |
2505 | /// \param C 'depend' clause with 'sink|source' dependency kind. |
2506 | void emitDoacrossOrdered(CodeGenFunction &CGF, |
2507 | const OMPDependClause *C) override; |
2508 | |
2509 | /// Translates the native parameter of outlined function if this is required |
2510 | /// for target. |
2511 | /// \param FD Field decl from captured record for the parameter. |
2512 | /// \param NativeParam Parameter itself. |
2513 | const VarDecl *translateParameter(const FieldDecl *FD, |
2514 | const VarDecl *NativeParam) const override; |
2515 | |
2516 | /// Gets the address of the native argument basing on the address of the |
2517 | /// target-specific parameter. |
2518 | /// \param NativeParam Parameter itself. |
2519 | /// \param TargetParam Corresponding target-specific parameter. |
2520 | Address getParameterAddress(CodeGenFunction &CGF, const VarDecl *NativeParam, |
2521 | const VarDecl *TargetParam) const override; |
2522 | |
2523 | /// Gets the OpenMP-specific address of the local variable. |
2524 | Address getAddressOfLocalVariable(CodeGenFunction &CGF, |
2525 | const VarDecl *VD) override { |
2526 | return Address::invalid(); |
2527 | } |
2528 | }; |
2529 | |
2530 | } // namespace CodeGen |
2531 | } // namespace clang |
2532 | |
2533 | #endif |