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 | RecordDe |