File: | src/gnu/usr.bin/clang/libLLVM/../../../llvm/llvm/lib/AsmParser/LLParser.cpp |
Warning: | line 3282, column 10 Called C++ object pointer is null |
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1 | //===-- LLParser.cpp - Parser Class ---------------------------------------===// | |||
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 file defines the parser class for .ll files. | |||
10 | // | |||
11 | //===----------------------------------------------------------------------===// | |||
12 | ||||
13 | #include "llvm/AsmParser/LLParser.h" | |||
14 | #include "llvm/ADT/APSInt.h" | |||
15 | #include "llvm/ADT/DenseMap.h" | |||
16 | #include "llvm/ADT/None.h" | |||
17 | #include "llvm/ADT/STLExtras.h" | |||
18 | #include "llvm/ADT/SmallPtrSet.h" | |||
19 | #include "llvm/AsmParser/LLToken.h" | |||
20 | #include "llvm/AsmParser/SlotMapping.h" | |||
21 | #include "llvm/BinaryFormat/Dwarf.h" | |||
22 | #include "llvm/IR/Argument.h" | |||
23 | #include "llvm/IR/AutoUpgrade.h" | |||
24 | #include "llvm/IR/BasicBlock.h" | |||
25 | #include "llvm/IR/CallingConv.h" | |||
26 | #include "llvm/IR/Comdat.h" | |||
27 | #include "llvm/IR/ConstantRange.h" | |||
28 | #include "llvm/IR/Constants.h" | |||
29 | #include "llvm/IR/DebugInfoMetadata.h" | |||
30 | #include "llvm/IR/DerivedTypes.h" | |||
31 | #include "llvm/IR/Function.h" | |||
32 | #include "llvm/IR/GlobalIFunc.h" | |||
33 | #include "llvm/IR/GlobalObject.h" | |||
34 | #include "llvm/IR/InlineAsm.h" | |||
35 | #include "llvm/IR/Instructions.h" | |||
36 | #include "llvm/IR/Intrinsics.h" | |||
37 | #include "llvm/IR/LLVMContext.h" | |||
38 | #include "llvm/IR/Metadata.h" | |||
39 | #include "llvm/IR/Module.h" | |||
40 | #include "llvm/IR/Value.h" | |||
41 | #include "llvm/IR/ValueSymbolTable.h" | |||
42 | #include "llvm/Support/Casting.h" | |||
43 | #include "llvm/Support/ErrorHandling.h" | |||
44 | #include "llvm/Support/MathExtras.h" | |||
45 | #include "llvm/Support/SaveAndRestore.h" | |||
46 | #include "llvm/Support/raw_ostream.h" | |||
47 | #include <algorithm> | |||
48 | #include <cassert> | |||
49 | #include <cstring> | |||
50 | #include <iterator> | |||
51 | #include <vector> | |||
52 | ||||
53 | using namespace llvm; | |||
54 | ||||
55 | static std::string getTypeString(Type *T) { | |||
56 | std::string Result; | |||
57 | raw_string_ostream Tmp(Result); | |||
58 | Tmp << *T; | |||
59 | return Tmp.str(); | |||
60 | } | |||
61 | ||||
62 | /// Run: module ::= toplevelentity* | |||
63 | bool LLParser::Run(bool UpgradeDebugInfo, | |||
64 | DataLayoutCallbackTy DataLayoutCallback) { | |||
65 | // Prime the lexer. | |||
66 | Lex.Lex(); | |||
67 | ||||
68 | if (Context.shouldDiscardValueNames()) | |||
69 | return error( | |||
70 | Lex.getLoc(), | |||
71 | "Can't read textual IR with a Context that discards named Values"); | |||
72 | ||||
73 | if (M) { | |||
74 | if (parseTargetDefinitions()) | |||
75 | return true; | |||
76 | ||||
77 | if (auto LayoutOverride = DataLayoutCallback(M->getTargetTriple())) | |||
78 | M->setDataLayout(*LayoutOverride); | |||
79 | } | |||
80 | ||||
81 | return parseTopLevelEntities() || validateEndOfModule(UpgradeDebugInfo) || | |||
82 | validateEndOfIndex(); | |||
83 | } | |||
84 | ||||
85 | bool LLParser::parseStandaloneConstantValue(Constant *&C, | |||
86 | const SlotMapping *Slots) { | |||
87 | restoreParsingState(Slots); | |||
88 | Lex.Lex(); | |||
89 | ||||
90 | Type *Ty = nullptr; | |||
91 | if (parseType(Ty) || parseConstantValue(Ty, C)) | |||
92 | return true; | |||
93 | if (Lex.getKind() != lltok::Eof) | |||
94 | return error(Lex.getLoc(), "expected end of string"); | |||
95 | return false; | |||
96 | } | |||
97 | ||||
98 | bool LLParser::parseTypeAtBeginning(Type *&Ty, unsigned &Read, | |||
99 | const SlotMapping *Slots) { | |||
100 | restoreParsingState(Slots); | |||
101 | Lex.Lex(); | |||
102 | ||||
103 | Read = 0; | |||
104 | SMLoc Start = Lex.getLoc(); | |||
105 | Ty = nullptr; | |||
106 | if (parseType(Ty)) | |||
107 | return true; | |||
108 | SMLoc End = Lex.getLoc(); | |||
109 | Read = End.getPointer() - Start.getPointer(); | |||
110 | ||||
111 | return false; | |||
112 | } | |||
113 | ||||
114 | void LLParser::restoreParsingState(const SlotMapping *Slots) { | |||
115 | if (!Slots) | |||
116 | return; | |||
117 | NumberedVals = Slots->GlobalValues; | |||
118 | NumberedMetadata = Slots->MetadataNodes; | |||
119 | for (const auto &I : Slots->NamedTypes) | |||
120 | NamedTypes.insert( | |||
121 | std::make_pair(I.getKey(), std::make_pair(I.second, LocTy()))); | |||
122 | for (const auto &I : Slots->Types) | |||
123 | NumberedTypes.insert( | |||
124 | std::make_pair(I.first, std::make_pair(I.second, LocTy()))); | |||
125 | } | |||
126 | ||||
127 | /// validateEndOfModule - Do final validity and sanity checks at the end of the | |||
128 | /// module. | |||
129 | bool LLParser::validateEndOfModule(bool UpgradeDebugInfo) { | |||
130 | if (!M) | |||
131 | return false; | |||
132 | // Handle any function attribute group forward references. | |||
133 | for (const auto &RAG : ForwardRefAttrGroups) { | |||
134 | Value *V = RAG.first; | |||
135 | const std::vector<unsigned> &Attrs = RAG.second; | |||
136 | AttrBuilder B; | |||
137 | ||||
138 | for (const auto &Attr : Attrs) | |||
139 | B.merge(NumberedAttrBuilders[Attr]); | |||
140 | ||||
141 | if (Function *Fn = dyn_cast<Function>(V)) { | |||
142 | AttributeList AS = Fn->getAttributes(); | |||
143 | AttrBuilder FnAttrs(AS.getFnAttributes()); | |||
144 | AS = AS.removeAttributes(Context, AttributeList::FunctionIndex); | |||
145 | ||||
146 | FnAttrs.merge(B); | |||
147 | ||||
148 | // If the alignment was parsed as an attribute, move to the alignment | |||
149 | // field. | |||
150 | if (FnAttrs.hasAlignmentAttr()) { | |||
151 | Fn->setAlignment(FnAttrs.getAlignment()); | |||
152 | FnAttrs.removeAttribute(Attribute::Alignment); | |||
153 | } | |||
154 | ||||
155 | AS = AS.addAttributes(Context, AttributeList::FunctionIndex, | |||
156 | AttributeSet::get(Context, FnAttrs)); | |||
157 | Fn->setAttributes(AS); | |||
158 | } else if (CallInst *CI = dyn_cast<CallInst>(V)) { | |||
159 | AttributeList AS = CI->getAttributes(); | |||
160 | AttrBuilder FnAttrs(AS.getFnAttributes()); | |||
161 | AS = AS.removeAttributes(Context, AttributeList::FunctionIndex); | |||
162 | FnAttrs.merge(B); | |||
163 | AS = AS.addAttributes(Context, AttributeList::FunctionIndex, | |||
164 | AttributeSet::get(Context, FnAttrs)); | |||
165 | CI->setAttributes(AS); | |||
166 | } else if (InvokeInst *II = dyn_cast<InvokeInst>(V)) { | |||
167 | AttributeList AS = II->getAttributes(); | |||
168 | AttrBuilder FnAttrs(AS.getFnAttributes()); | |||
169 | AS = AS.removeAttributes(Context, AttributeList::FunctionIndex); | |||
170 | FnAttrs.merge(B); | |||
171 | AS = AS.addAttributes(Context, AttributeList::FunctionIndex, | |||
172 | AttributeSet::get(Context, FnAttrs)); | |||
173 | II->setAttributes(AS); | |||
174 | } else if (CallBrInst *CBI = dyn_cast<CallBrInst>(V)) { | |||
175 | AttributeList AS = CBI->getAttributes(); | |||
176 | AttrBuilder FnAttrs(AS.getFnAttributes()); | |||
177 | AS = AS.removeAttributes(Context, AttributeList::FunctionIndex); | |||
178 | FnAttrs.merge(B); | |||
179 | AS = AS.addAttributes(Context, AttributeList::FunctionIndex, | |||
180 | AttributeSet::get(Context, FnAttrs)); | |||
181 | CBI->setAttributes(AS); | |||
182 | } else if (auto *GV = dyn_cast<GlobalVariable>(V)) { | |||
183 | AttrBuilder Attrs(GV->getAttributes()); | |||
184 | Attrs.merge(B); | |||
185 | GV->setAttributes(AttributeSet::get(Context,Attrs)); | |||
186 | } else { | |||
187 | llvm_unreachable("invalid object with forward attribute group reference")__builtin_unreachable(); | |||
188 | } | |||
189 | } | |||
190 | ||||
191 | // If there are entries in ForwardRefBlockAddresses at this point, the | |||
192 | // function was never defined. | |||
193 | if (!ForwardRefBlockAddresses.empty()) | |||
194 | return error(ForwardRefBlockAddresses.begin()->first.Loc, | |||
195 | "expected function name in blockaddress"); | |||
196 | ||||
197 | for (const auto &NT : NumberedTypes) | |||
198 | if (NT.second.second.isValid()) | |||
199 | return error(NT.second.second, | |||
200 | "use of undefined type '%" + Twine(NT.first) + "'"); | |||
201 | ||||
202 | for (StringMap<std::pair<Type*, LocTy> >::iterator I = | |||
203 | NamedTypes.begin(), E = NamedTypes.end(); I != E; ++I) | |||
204 | if (I->second.second.isValid()) | |||
205 | return error(I->second.second, | |||
206 | "use of undefined type named '" + I->getKey() + "'"); | |||
207 | ||||
208 | if (!ForwardRefComdats.empty()) | |||
209 | return error(ForwardRefComdats.begin()->second, | |||
210 | "use of undefined comdat '$" + | |||
211 | ForwardRefComdats.begin()->first + "'"); | |||
212 | ||||
213 | if (!ForwardRefVals.empty()) | |||
214 | return error(ForwardRefVals.begin()->second.second, | |||
215 | "use of undefined value '@" + ForwardRefVals.begin()->first + | |||
216 | "'"); | |||
217 | ||||
218 | if (!ForwardRefValIDs.empty()) | |||
219 | return error(ForwardRefValIDs.begin()->second.second, | |||
220 | "use of undefined value '@" + | |||
221 | Twine(ForwardRefValIDs.begin()->first) + "'"); | |||
222 | ||||
223 | if (!ForwardRefMDNodes.empty()) | |||
224 | return error(ForwardRefMDNodes.begin()->second.second, | |||
225 | "use of undefined metadata '!" + | |||
226 | Twine(ForwardRefMDNodes.begin()->first) + "'"); | |||
227 | ||||
228 | // Resolve metadata cycles. | |||
229 | for (auto &N : NumberedMetadata) { | |||
230 | if (N.second && !N.second->isResolved()) | |||
231 | N.second->resolveCycles(); | |||
232 | } | |||
233 | ||||
234 | for (auto *Inst : InstsWithTBAATag) { | |||
235 | MDNode *MD = Inst->getMetadata(LLVMContext::MD_tbaa); | |||
236 | assert(MD && "UpgradeInstWithTBAATag should have a TBAA tag")((void)0); | |||
237 | auto *UpgradedMD = UpgradeTBAANode(*MD); | |||
238 | if (MD != UpgradedMD) | |||
239 | Inst->setMetadata(LLVMContext::MD_tbaa, UpgradedMD); | |||
240 | } | |||
241 | ||||
242 | // Look for intrinsic functions and CallInst that need to be upgraded | |||
243 | for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; ) | |||
244 | UpgradeCallsToIntrinsic(&*FI++); // must be post-increment, as we remove | |||
245 | ||||
246 | // Some types could be renamed during loading if several modules are | |||
247 | // loaded in the same LLVMContext (LTO scenario). In this case we should | |||
248 | // remangle intrinsics names as well. | |||
249 | for (Module::iterator FI = M->begin(), FE = M->end(); FI != FE; ) { | |||
250 | Function *F = &*FI++; | |||
251 | if (auto Remangled = Intrinsic::remangleIntrinsicFunction(F)) { | |||
252 | F->replaceAllUsesWith(Remangled.getValue()); | |||
253 | F->eraseFromParent(); | |||
254 | } | |||
255 | } | |||
256 | ||||
257 | if (UpgradeDebugInfo) | |||
258 | llvm::UpgradeDebugInfo(*M); | |||
259 | ||||
260 | UpgradeModuleFlags(*M); | |||
261 | UpgradeSectionAttributes(*M); | |||
262 | ||||
263 | if (!Slots) | |||
264 | return false; | |||
265 | // Initialize the slot mapping. | |||
266 | // Because by this point we've parsed and validated everything, we can "steal" | |||
267 | // the mapping from LLParser as it doesn't need it anymore. | |||
268 | Slots->GlobalValues = std::move(NumberedVals); | |||
269 | Slots->MetadataNodes = std::move(NumberedMetadata); | |||
270 | for (const auto &I : NamedTypes) | |||
271 | Slots->NamedTypes.insert(std::make_pair(I.getKey(), I.second.first)); | |||
272 | for (const auto &I : NumberedTypes) | |||
273 | Slots->Types.insert(std::make_pair(I.first, I.second.first)); | |||
274 | ||||
275 | return false; | |||
276 | } | |||
277 | ||||
278 | /// Do final validity and sanity checks at the end of the index. | |||
279 | bool LLParser::validateEndOfIndex() { | |||
280 | if (!Index) | |||
281 | return false; | |||
282 | ||||
283 | if (!ForwardRefValueInfos.empty()) | |||
284 | return error(ForwardRefValueInfos.begin()->second.front().second, | |||
285 | "use of undefined summary '^" + | |||
286 | Twine(ForwardRefValueInfos.begin()->first) + "'"); | |||
287 | ||||
288 | if (!ForwardRefAliasees.empty()) | |||
289 | return error(ForwardRefAliasees.begin()->second.front().second, | |||
290 | "use of undefined summary '^" + | |||
291 | Twine(ForwardRefAliasees.begin()->first) + "'"); | |||
292 | ||||
293 | if (!ForwardRefTypeIds.empty()) | |||
294 | return error(ForwardRefTypeIds.begin()->second.front().second, | |||
295 | "use of undefined type id summary '^" + | |||
296 | Twine(ForwardRefTypeIds.begin()->first) + "'"); | |||
297 | ||||
298 | return false; | |||
299 | } | |||
300 | ||||
301 | //===----------------------------------------------------------------------===// | |||
302 | // Top-Level Entities | |||
303 | //===----------------------------------------------------------------------===// | |||
304 | ||||
305 | bool LLParser::parseTargetDefinitions() { | |||
306 | while (true) { | |||
307 | switch (Lex.getKind()) { | |||
308 | case lltok::kw_target: | |||
309 | if (parseTargetDefinition()) | |||
310 | return true; | |||
311 | break; | |||
312 | case lltok::kw_source_filename: | |||
313 | if (parseSourceFileName()) | |||
314 | return true; | |||
315 | break; | |||
316 | default: | |||
317 | return false; | |||
318 | } | |||
319 | } | |||
320 | } | |||
321 | ||||
322 | bool LLParser::parseTopLevelEntities() { | |||
323 | // If there is no Module, then parse just the summary index entries. | |||
324 | if (!M) { | |||
325 | while (true) { | |||
326 | switch (Lex.getKind()) { | |||
327 | case lltok::Eof: | |||
328 | return false; | |||
329 | case lltok::SummaryID: | |||
330 | if (parseSummaryEntry()) | |||
331 | return true; | |||
332 | break; | |||
333 | case lltok::kw_source_filename: | |||
334 | if (parseSourceFileName()) | |||
335 | return true; | |||
336 | break; | |||
337 | default: | |||
338 | // Skip everything else | |||
339 | Lex.Lex(); | |||
340 | } | |||
341 | } | |||
342 | } | |||
343 | while (true) { | |||
344 | switch (Lex.getKind()) { | |||
345 | default: | |||
346 | return tokError("expected top-level entity"); | |||
347 | case lltok::Eof: return false; | |||
348 | case lltok::kw_declare: | |||
349 | if (parseDeclare()) | |||
350 | return true; | |||
351 | break; | |||
352 | case lltok::kw_define: | |||
353 | if (parseDefine()) | |||
354 | return true; | |||
355 | break; | |||
356 | case lltok::kw_module: | |||
357 | if (parseModuleAsm()) | |||
358 | return true; | |||
359 | break; | |||
360 | case lltok::LocalVarID: | |||
361 | if (parseUnnamedType()) | |||
362 | return true; | |||
363 | break; | |||
364 | case lltok::LocalVar: | |||
365 | if (parseNamedType()) | |||
366 | return true; | |||
367 | break; | |||
368 | case lltok::GlobalID: | |||
369 | if (parseUnnamedGlobal()) | |||
370 | return true; | |||
371 | break; | |||
372 | case lltok::GlobalVar: | |||
373 | if (parseNamedGlobal()) | |||
374 | return true; | |||
375 | break; | |||
376 | case lltok::ComdatVar: if (parseComdat()) return true; break; | |||
377 | case lltok::exclaim: | |||
378 | if (parseStandaloneMetadata()) | |||
379 | return true; | |||
380 | break; | |||
381 | case lltok::SummaryID: | |||
382 | if (parseSummaryEntry()) | |||
383 | return true; | |||
384 | break; | |||
385 | case lltok::MetadataVar: | |||
386 | if (parseNamedMetadata()) | |||
387 | return true; | |||
388 | break; | |||
389 | case lltok::kw_attributes: | |||
390 | if (parseUnnamedAttrGrp()) | |||
391 | return true; | |||
392 | break; | |||
393 | case lltok::kw_uselistorder: | |||
394 | if (parseUseListOrder()) | |||
395 | return true; | |||
396 | break; | |||
397 | case lltok::kw_uselistorder_bb: | |||
398 | if (parseUseListOrderBB()) | |||
399 | return true; | |||
400 | break; | |||
401 | } | |||
402 | } | |||
403 | } | |||
404 | ||||
405 | /// toplevelentity | |||
406 | /// ::= 'module' 'asm' STRINGCONSTANT | |||
407 | bool LLParser::parseModuleAsm() { | |||
408 | assert(Lex.getKind() == lltok::kw_module)((void)0); | |||
409 | Lex.Lex(); | |||
410 | ||||
411 | std::string AsmStr; | |||
412 | if (parseToken(lltok::kw_asm, "expected 'module asm'") || | |||
413 | parseStringConstant(AsmStr)) | |||
414 | return true; | |||
415 | ||||
416 | M->appendModuleInlineAsm(AsmStr); | |||
417 | return false; | |||
418 | } | |||
419 | ||||
420 | /// toplevelentity | |||
421 | /// ::= 'target' 'triple' '=' STRINGCONSTANT | |||
422 | /// ::= 'target' 'datalayout' '=' STRINGCONSTANT | |||
423 | bool LLParser::parseTargetDefinition() { | |||
424 | assert(Lex.getKind() == lltok::kw_target)((void)0); | |||
425 | std::string Str; | |||
426 | switch (Lex.Lex()) { | |||
427 | default: | |||
428 | return tokError("unknown target property"); | |||
429 | case lltok::kw_triple: | |||
430 | Lex.Lex(); | |||
431 | if (parseToken(lltok::equal, "expected '=' after target triple") || | |||
432 | parseStringConstant(Str)) | |||
433 | return true; | |||
434 | M->setTargetTriple(Str); | |||
435 | return false; | |||
436 | case lltok::kw_datalayout: | |||
437 | Lex.Lex(); | |||
438 | if (parseToken(lltok::equal, "expected '=' after target datalayout") || | |||
439 | parseStringConstant(Str)) | |||
440 | return true; | |||
441 | M->setDataLayout(Str); | |||
442 | return false; | |||
443 | } | |||
444 | } | |||
445 | ||||
446 | /// toplevelentity | |||
447 | /// ::= 'source_filename' '=' STRINGCONSTANT | |||
448 | bool LLParser::parseSourceFileName() { | |||
449 | assert(Lex.getKind() == lltok::kw_source_filename)((void)0); | |||
450 | Lex.Lex(); | |||
451 | if (parseToken(lltok::equal, "expected '=' after source_filename") || | |||
452 | parseStringConstant(SourceFileName)) | |||
453 | return true; | |||
454 | if (M) | |||
455 | M->setSourceFileName(SourceFileName); | |||
456 | return false; | |||
457 | } | |||
458 | ||||
459 | /// parseUnnamedType: | |||
460 | /// ::= LocalVarID '=' 'type' type | |||
461 | bool LLParser::parseUnnamedType() { | |||
462 | LocTy TypeLoc = Lex.getLoc(); | |||
463 | unsigned TypeID = Lex.getUIntVal(); | |||
464 | Lex.Lex(); // eat LocalVarID; | |||
465 | ||||
466 | if (parseToken(lltok::equal, "expected '=' after name") || | |||
467 | parseToken(lltok::kw_type, "expected 'type' after '='")) | |||
468 | return true; | |||
469 | ||||
470 | Type *Result = nullptr; | |||
471 | if (parseStructDefinition(TypeLoc, "", NumberedTypes[TypeID], Result)) | |||
472 | return true; | |||
473 | ||||
474 | if (!isa<StructType>(Result)) { | |||
475 | std::pair<Type*, LocTy> &Entry = NumberedTypes[TypeID]; | |||
476 | if (Entry.first) | |||
477 | return error(TypeLoc, "non-struct types may not be recursive"); | |||
478 | Entry.first = Result; | |||
479 | Entry.second = SMLoc(); | |||
480 | } | |||
481 | ||||
482 | return false; | |||
483 | } | |||
484 | ||||
485 | /// toplevelentity | |||
486 | /// ::= LocalVar '=' 'type' type | |||
487 | bool LLParser::parseNamedType() { | |||
488 | std::string Name = Lex.getStrVal(); | |||
489 | LocTy NameLoc = Lex.getLoc(); | |||
490 | Lex.Lex(); // eat LocalVar. | |||
491 | ||||
492 | if (parseToken(lltok::equal, "expected '=' after name") || | |||
493 | parseToken(lltok::kw_type, "expected 'type' after name")) | |||
494 | return true; | |||
495 | ||||
496 | Type *Result = nullptr; | |||
497 | if (parseStructDefinition(NameLoc, Name, NamedTypes[Name], Result)) | |||
498 | return true; | |||
499 | ||||
500 | if (!isa<StructType>(Result)) { | |||
501 | std::pair<Type*, LocTy> &Entry = NamedTypes[Name]; | |||
502 | if (Entry.first) | |||
503 | return error(NameLoc, "non-struct types may not be recursive"); | |||
504 | Entry.first = Result; | |||
505 | Entry.second = SMLoc(); | |||
506 | } | |||
507 | ||||
508 | return false; | |||
509 | } | |||
510 | ||||
511 | /// toplevelentity | |||
512 | /// ::= 'declare' FunctionHeader | |||
513 | bool LLParser::parseDeclare() { | |||
514 | assert(Lex.getKind() == lltok::kw_declare)((void)0); | |||
515 | Lex.Lex(); | |||
516 | ||||
517 | std::vector<std::pair<unsigned, MDNode *>> MDs; | |||
518 | while (Lex.getKind() == lltok::MetadataVar) { | |||
519 | unsigned MDK; | |||
520 | MDNode *N; | |||
521 | if (parseMetadataAttachment(MDK, N)) | |||
522 | return true; | |||
523 | MDs.push_back({MDK, N}); | |||
524 | } | |||
525 | ||||
526 | Function *F; | |||
527 | if (parseFunctionHeader(F, false)) | |||
528 | return true; | |||
529 | for (auto &MD : MDs) | |||
530 | F->addMetadata(MD.first, *MD.second); | |||
531 | return false; | |||
532 | } | |||
533 | ||||
534 | /// toplevelentity | |||
535 | /// ::= 'define' FunctionHeader (!dbg !56)* '{' ... | |||
536 | bool LLParser::parseDefine() { | |||
537 | assert(Lex.getKind() == lltok::kw_define)((void)0); | |||
538 | Lex.Lex(); | |||
539 | ||||
540 | Function *F; | |||
541 | return parseFunctionHeader(F, true) || parseOptionalFunctionMetadata(*F) || | |||
542 | parseFunctionBody(*F); | |||
543 | } | |||
544 | ||||
545 | /// parseGlobalType | |||
546 | /// ::= 'constant' | |||
547 | /// ::= 'global' | |||
548 | bool LLParser::parseGlobalType(bool &IsConstant) { | |||
549 | if (Lex.getKind() == lltok::kw_constant) | |||
550 | IsConstant = true; | |||
551 | else if (Lex.getKind() == lltok::kw_global) | |||
552 | IsConstant = false; | |||
553 | else { | |||
554 | IsConstant = false; | |||
555 | return tokError("expected 'global' or 'constant'"); | |||
556 | } | |||
557 | Lex.Lex(); | |||
558 | return false; | |||
559 | } | |||
560 | ||||
561 | bool LLParser::parseOptionalUnnamedAddr( | |||
562 | GlobalVariable::UnnamedAddr &UnnamedAddr) { | |||
563 | if (EatIfPresent(lltok::kw_unnamed_addr)) | |||
564 | UnnamedAddr = GlobalValue::UnnamedAddr::Global; | |||
565 | else if (EatIfPresent(lltok::kw_local_unnamed_addr)) | |||
566 | UnnamedAddr = GlobalValue::UnnamedAddr::Local; | |||
567 | else | |||
568 | UnnamedAddr = GlobalValue::UnnamedAddr::None; | |||
569 | return false; | |||
570 | } | |||
571 | ||||
572 | /// parseUnnamedGlobal: | |||
573 | /// OptionalVisibility (ALIAS | IFUNC) ... | |||
574 | /// OptionalLinkage OptionalPreemptionSpecifier OptionalVisibility | |||
575 | /// OptionalDLLStorageClass | |||
576 | /// ... -> global variable | |||
577 | /// GlobalID '=' OptionalVisibility (ALIAS | IFUNC) ... | |||
578 | /// GlobalID '=' OptionalLinkage OptionalPreemptionSpecifier | |||
579 | /// OptionalVisibility | |||
580 | /// OptionalDLLStorageClass | |||
581 | /// ... -> global variable | |||
582 | bool LLParser::parseUnnamedGlobal() { | |||
583 | unsigned VarID = NumberedVals.size(); | |||
584 | std::string Name; | |||
585 | LocTy NameLoc = Lex.getLoc(); | |||
586 | ||||
587 | // Handle the GlobalID form. | |||
588 | if (Lex.getKind() == lltok::GlobalID) { | |||
589 | if (Lex.getUIntVal() != VarID) | |||
590 | return error(Lex.getLoc(), | |||
591 | "variable expected to be numbered '%" + Twine(VarID) + "'"); | |||
592 | Lex.Lex(); // eat GlobalID; | |||
593 | ||||
594 | if (parseToken(lltok::equal, "expected '=' after name")) | |||
595 | return true; | |||
596 | } | |||
597 | ||||
598 | bool HasLinkage; | |||
599 | unsigned Linkage, Visibility, DLLStorageClass; | |||
600 | bool DSOLocal; | |||
601 | GlobalVariable::ThreadLocalMode TLM; | |||
602 | GlobalVariable::UnnamedAddr UnnamedAddr; | |||
603 | if (parseOptionalLinkage(Linkage, HasLinkage, Visibility, DLLStorageClass, | |||
604 | DSOLocal) || | |||
605 | parseOptionalThreadLocal(TLM) || parseOptionalUnnamedAddr(UnnamedAddr)) | |||
606 | return true; | |||
607 | ||||
608 | if (Lex.getKind() != lltok::kw_alias && Lex.getKind() != lltok::kw_ifunc) | |||
609 | return parseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility, | |||
610 | DLLStorageClass, DSOLocal, TLM, UnnamedAddr); | |||
611 | ||||
612 | return parseIndirectSymbol(Name, NameLoc, Linkage, Visibility, | |||
613 | DLLStorageClass, DSOLocal, TLM, UnnamedAddr); | |||
614 | } | |||
615 | ||||
616 | /// parseNamedGlobal: | |||
617 | /// GlobalVar '=' OptionalVisibility (ALIAS | IFUNC) ... | |||
618 | /// GlobalVar '=' OptionalLinkage OptionalPreemptionSpecifier | |||
619 | /// OptionalVisibility OptionalDLLStorageClass | |||
620 | /// ... -> global variable | |||
621 | bool LLParser::parseNamedGlobal() { | |||
622 | assert(Lex.getKind() == lltok::GlobalVar)((void)0); | |||
623 | LocTy NameLoc = Lex.getLoc(); | |||
624 | std::string Name = Lex.getStrVal(); | |||
625 | Lex.Lex(); | |||
626 | ||||
627 | bool HasLinkage; | |||
628 | unsigned Linkage, Visibility, DLLStorageClass; | |||
629 | bool DSOLocal; | |||
630 | GlobalVariable::ThreadLocalMode TLM; | |||
631 | GlobalVariable::UnnamedAddr UnnamedAddr; | |||
632 | if (parseToken(lltok::equal, "expected '=' in global variable") || | |||
633 | parseOptionalLinkage(Linkage, HasLinkage, Visibility, DLLStorageClass, | |||
634 | DSOLocal) || | |||
635 | parseOptionalThreadLocal(TLM) || parseOptionalUnnamedAddr(UnnamedAddr)) | |||
636 | return true; | |||
637 | ||||
638 | if (Lex.getKind() != lltok::kw_alias && Lex.getKind() != lltok::kw_ifunc) | |||
639 | return parseGlobal(Name, NameLoc, Linkage, HasLinkage, Visibility, | |||
640 | DLLStorageClass, DSOLocal, TLM, UnnamedAddr); | |||
641 | ||||
642 | return parseIndirectSymbol(Name, NameLoc, Linkage, Visibility, | |||
643 | DLLStorageClass, DSOLocal, TLM, UnnamedAddr); | |||
644 | } | |||
645 | ||||
646 | bool LLParser::parseComdat() { | |||
647 | assert(Lex.getKind() == lltok::ComdatVar)((void)0); | |||
648 | std::string Name = Lex.getStrVal(); | |||
649 | LocTy NameLoc = Lex.getLoc(); | |||
650 | Lex.Lex(); | |||
651 | ||||
652 | if (parseToken(lltok::equal, "expected '=' here")) | |||
653 | return true; | |||
654 | ||||
655 | if (parseToken(lltok::kw_comdat, "expected comdat keyword")) | |||
656 | return tokError("expected comdat type"); | |||
657 | ||||
658 | Comdat::SelectionKind SK; | |||
659 | switch (Lex.getKind()) { | |||
660 | default: | |||
661 | return tokError("unknown selection kind"); | |||
662 | case lltok::kw_any: | |||
663 | SK = Comdat::Any; | |||
664 | break; | |||
665 | case lltok::kw_exactmatch: | |||
666 | SK = Comdat::ExactMatch; | |||
667 | break; | |||
668 | case lltok::kw_largest: | |||
669 | SK = Comdat::Largest; | |||
670 | break; | |||
671 | case lltok::kw_nodeduplicate: | |||
672 | SK = Comdat::NoDeduplicate; | |||
673 | break; | |||
674 | case lltok::kw_samesize: | |||
675 | SK = Comdat::SameSize; | |||
676 | break; | |||
677 | } | |||
678 | Lex.Lex(); | |||
679 | ||||
680 | // See if the comdat was forward referenced, if so, use the comdat. | |||
681 | Module::ComdatSymTabType &ComdatSymTab = M->getComdatSymbolTable(); | |||
682 | Module::ComdatSymTabType::iterator I = ComdatSymTab.find(Name); | |||
683 | if (I != ComdatSymTab.end() && !ForwardRefComdats.erase(Name)) | |||
684 | return error(NameLoc, "redefinition of comdat '$" + Name + "'"); | |||
685 | ||||
686 | Comdat *C; | |||
687 | if (I != ComdatSymTab.end()) | |||
688 | C = &I->second; | |||
689 | else | |||
690 | C = M->getOrInsertComdat(Name); | |||
691 | C->setSelectionKind(SK); | |||
692 | ||||
693 | return false; | |||
694 | } | |||
695 | ||||
696 | // MDString: | |||
697 | // ::= '!' STRINGCONSTANT | |||
698 | bool LLParser::parseMDString(MDString *&Result) { | |||
699 | std::string Str; | |||
700 | if (parseStringConstant(Str)) | |||
701 | return true; | |||
702 | Result = MDString::get(Context, Str); | |||
703 | return false; | |||
704 | } | |||
705 | ||||
706 | // MDNode: | |||
707 | // ::= '!' MDNodeNumber | |||
708 | bool LLParser::parseMDNodeID(MDNode *&Result) { | |||
709 | // !{ ..., !42, ... } | |||
710 | LocTy IDLoc = Lex.getLoc(); | |||
711 | unsigned MID = 0; | |||
712 | if (parseUInt32(MID)) | |||
713 | return true; | |||
714 | ||||
715 | // If not a forward reference, just return it now. | |||
716 | if (NumberedMetadata.count(MID)) { | |||
717 | Result = NumberedMetadata[MID]; | |||
718 | return false; | |||
719 | } | |||
720 | ||||
721 | // Otherwise, create MDNode forward reference. | |||
722 | auto &FwdRef = ForwardRefMDNodes[MID]; | |||
723 | FwdRef = std::make_pair(MDTuple::getTemporary(Context, None), IDLoc); | |||
724 | ||||
725 | Result = FwdRef.first.get(); | |||
726 | NumberedMetadata[MID].reset(Result); | |||
727 | return false; | |||
728 | } | |||
729 | ||||
730 | /// parseNamedMetadata: | |||
731 | /// !foo = !{ !1, !2 } | |||
732 | bool LLParser::parseNamedMetadata() { | |||
733 | assert(Lex.getKind() == lltok::MetadataVar)((void)0); | |||
734 | std::string Name = Lex.getStrVal(); | |||
735 | Lex.Lex(); | |||
736 | ||||
737 | if (parseToken(lltok::equal, "expected '=' here") || | |||
738 | parseToken(lltok::exclaim, "Expected '!' here") || | |||
739 | parseToken(lltok::lbrace, "Expected '{' here")) | |||
740 | return true; | |||
741 | ||||
742 | NamedMDNode *NMD = M->getOrInsertNamedMetadata(Name); | |||
743 | if (Lex.getKind() != lltok::rbrace) | |||
744 | do { | |||
745 | MDNode *N = nullptr; | |||
746 | // parse DIExpressions inline as a special case. They are still MDNodes, | |||
747 | // so they can still appear in named metadata. Remove this logic if they | |||
748 | // become plain Metadata. | |||
749 | if (Lex.getKind() == lltok::MetadataVar && | |||
750 | Lex.getStrVal() == "DIExpression") { | |||
751 | if (parseDIExpression(N, /*IsDistinct=*/false)) | |||
752 | return true; | |||
753 | // DIArgLists should only appear inline in a function, as they may | |||
754 | // contain LocalAsMetadata arguments which require a function context. | |||
755 | } else if (Lex.getKind() == lltok::MetadataVar && | |||
756 | Lex.getStrVal() == "DIArgList") { | |||
757 | return tokError("found DIArgList outside of function"); | |||
758 | } else if (parseToken(lltok::exclaim, "Expected '!' here") || | |||
759 | parseMDNodeID(N)) { | |||
760 | return true; | |||
761 | } | |||
762 | NMD->addOperand(N); | |||
763 | } while (EatIfPresent(lltok::comma)); | |||
764 | ||||
765 | return parseToken(lltok::rbrace, "expected end of metadata node"); | |||
766 | } | |||
767 | ||||
768 | /// parseStandaloneMetadata: | |||
769 | /// !42 = !{...} | |||
770 | bool LLParser::parseStandaloneMetadata() { | |||
771 | assert(Lex.getKind() == lltok::exclaim)((void)0); | |||
772 | Lex.Lex(); | |||
773 | unsigned MetadataID = 0; | |||
774 | ||||
775 | MDNode *Init; | |||
776 | if (parseUInt32(MetadataID) || parseToken(lltok::equal, "expected '=' here")) | |||
777 | return true; | |||
778 | ||||
779 | // Detect common error, from old metadata syntax. | |||
780 | if (Lex.getKind() == lltok::Type) | |||
781 | return tokError("unexpected type in metadata definition"); | |||
782 | ||||
783 | bool IsDistinct = EatIfPresent(lltok::kw_distinct); | |||
784 | if (Lex.getKind() == lltok::MetadataVar) { | |||
785 | if (parseSpecializedMDNode(Init, IsDistinct)) | |||
786 | return true; | |||
787 | } else if (parseToken(lltok::exclaim, "Expected '!' here") || | |||
788 | parseMDTuple(Init, IsDistinct)) | |||
789 | return true; | |||
790 | ||||
791 | // See if this was forward referenced, if so, handle it. | |||
792 | auto FI = ForwardRefMDNodes.find(MetadataID); | |||
793 | if (FI != ForwardRefMDNodes.end()) { | |||
794 | FI->second.first->replaceAllUsesWith(Init); | |||
795 | ForwardRefMDNodes.erase(FI); | |||
796 | ||||
797 | assert(NumberedMetadata[MetadataID] == Init && "Tracking VH didn't work")((void)0); | |||
798 | } else { | |||
799 | if (NumberedMetadata.count(MetadataID)) | |||
800 | return tokError("Metadata id is already used"); | |||
801 | NumberedMetadata[MetadataID].reset(Init); | |||
802 | } | |||
803 | ||||
804 | return false; | |||
805 | } | |||
806 | ||||
807 | // Skips a single module summary entry. | |||
808 | bool LLParser::skipModuleSummaryEntry() { | |||
809 | // Each module summary entry consists of a tag for the entry | |||
810 | // type, followed by a colon, then the fields which may be surrounded by | |||
811 | // nested sets of parentheses. The "tag:" looks like a Label. Once parsing | |||
812 | // support is in place we will look for the tokens corresponding to the | |||
813 | // expected tags. | |||
814 | if (Lex.getKind() != lltok::kw_gv && Lex.getKind() != lltok::kw_module && | |||
815 | Lex.getKind() != lltok::kw_typeid && Lex.getKind() != lltok::kw_flags && | |||
816 | Lex.getKind() != lltok::kw_blockcount) | |||
817 | return tokError( | |||
818 | "Expected 'gv', 'module', 'typeid', 'flags' or 'blockcount' at the " | |||
819 | "start of summary entry"); | |||
820 | if (Lex.getKind() == lltok::kw_flags) | |||
821 | return parseSummaryIndexFlags(); | |||
822 | if (Lex.getKind() == lltok::kw_blockcount) | |||
823 | return parseBlockCount(); | |||
824 | Lex.Lex(); | |||
825 | if (parseToken(lltok::colon, "expected ':' at start of summary entry") || | |||
826 | parseToken(lltok::lparen, "expected '(' at start of summary entry")) | |||
827 | return true; | |||
828 | // Now walk through the parenthesized entry, until the number of open | |||
829 | // parentheses goes back down to 0 (the first '(' was parsed above). | |||
830 | unsigned NumOpenParen = 1; | |||
831 | do { | |||
832 | switch (Lex.getKind()) { | |||
833 | case lltok::lparen: | |||
834 | NumOpenParen++; | |||
835 | break; | |||
836 | case lltok::rparen: | |||
837 | NumOpenParen--; | |||
838 | break; | |||
839 | case lltok::Eof: | |||
840 | return tokError("found end of file while parsing summary entry"); | |||
841 | default: | |||
842 | // Skip everything in between parentheses. | |||
843 | break; | |||
844 | } | |||
845 | Lex.Lex(); | |||
846 | } while (NumOpenParen > 0); | |||
847 | return false; | |||
848 | } | |||
849 | ||||
850 | /// SummaryEntry | |||
851 | /// ::= SummaryID '=' GVEntry | ModuleEntry | TypeIdEntry | |||
852 | bool LLParser::parseSummaryEntry() { | |||
853 | assert(Lex.getKind() == lltok::SummaryID)((void)0); | |||
854 | unsigned SummaryID = Lex.getUIntVal(); | |||
855 | ||||
856 | // For summary entries, colons should be treated as distinct tokens, | |||
857 | // not an indication of the end of a label token. | |||
858 | Lex.setIgnoreColonInIdentifiers(true); | |||
859 | ||||
860 | Lex.Lex(); | |||
861 | if (parseToken(lltok::equal, "expected '=' here")) | |||
862 | return true; | |||
863 | ||||
864 | // If we don't have an index object, skip the summary entry. | |||
865 | if (!Index) | |||
866 | return skipModuleSummaryEntry(); | |||
867 | ||||
868 | bool result = false; | |||
869 | switch (Lex.getKind()) { | |||
870 | case lltok::kw_gv: | |||
871 | result = parseGVEntry(SummaryID); | |||
872 | break; | |||
873 | case lltok::kw_module: | |||
874 | result = parseModuleEntry(SummaryID); | |||
875 | break; | |||
876 | case lltok::kw_typeid: | |||
877 | result = parseTypeIdEntry(SummaryID); | |||
878 | break; | |||
879 | case lltok::kw_typeidCompatibleVTable: | |||
880 | result = parseTypeIdCompatibleVtableEntry(SummaryID); | |||
881 | break; | |||
882 | case lltok::kw_flags: | |||
883 | result = parseSummaryIndexFlags(); | |||
884 | break; | |||
885 | case lltok::kw_blockcount: | |||
886 | result = parseBlockCount(); | |||
887 | break; | |||
888 | default: | |||
889 | result = error(Lex.getLoc(), "unexpected summary kind"); | |||
890 | break; | |||
891 | } | |||
892 | Lex.setIgnoreColonInIdentifiers(false); | |||
893 | return result; | |||
894 | } | |||
895 | ||||
896 | static bool isValidVisibilityForLinkage(unsigned V, unsigned L) { | |||
897 | return !GlobalValue::isLocalLinkage((GlobalValue::LinkageTypes)L) || | |||
898 | (GlobalValue::VisibilityTypes)V == GlobalValue::DefaultVisibility; | |||
899 | } | |||
900 | ||||
901 | // If there was an explicit dso_local, update GV. In the absence of an explicit | |||
902 | // dso_local we keep the default value. | |||
903 | static void maybeSetDSOLocal(bool DSOLocal, GlobalValue &GV) { | |||
904 | if (DSOLocal) | |||
905 | GV.setDSOLocal(true); | |||
906 | } | |||
907 | ||||
908 | static std::string typeComparisonErrorMessage(StringRef Message, Type *Ty1, | |||
909 | Type *Ty2) { | |||
910 | std::string ErrString; | |||
911 | raw_string_ostream ErrOS(ErrString); | |||
912 | ErrOS << Message << " (" << *Ty1 << " vs " << *Ty2 << ")"; | |||
913 | return ErrOS.str(); | |||
914 | } | |||
915 | ||||
916 | /// parseIndirectSymbol: | |||
917 | /// ::= GlobalVar '=' OptionalLinkage OptionalPreemptionSpecifier | |||
918 | /// OptionalVisibility OptionalDLLStorageClass | |||
919 | /// OptionalThreadLocal OptionalUnnamedAddr | |||
920 | /// 'alias|ifunc' IndirectSymbol IndirectSymbolAttr* | |||
921 | /// | |||
922 | /// IndirectSymbol | |||
923 | /// ::= TypeAndValue | |||
924 | /// | |||
925 | /// IndirectSymbolAttr | |||
926 | /// ::= ',' 'partition' StringConstant | |||
927 | /// | |||
928 | /// Everything through OptionalUnnamedAddr has already been parsed. | |||
929 | /// | |||
930 | bool LLParser::parseIndirectSymbol(const std::string &Name, LocTy NameLoc, | |||
931 | unsigned L, unsigned Visibility, | |||
932 | unsigned DLLStorageClass, bool DSOLocal, | |||
933 | GlobalVariable::ThreadLocalMode TLM, | |||
934 | GlobalVariable::UnnamedAddr UnnamedAddr) { | |||
935 | bool IsAlias; | |||
936 | if (Lex.getKind() == lltok::kw_alias) | |||
937 | IsAlias = true; | |||
938 | else if (Lex.getKind() == lltok::kw_ifunc) | |||
939 | IsAlias = false; | |||
940 | else | |||
941 | llvm_unreachable("Not an alias or ifunc!")__builtin_unreachable(); | |||
942 | Lex.Lex(); | |||
943 | ||||
944 | GlobalValue::LinkageTypes Linkage = (GlobalValue::LinkageTypes) L; | |||
945 | ||||
946 | if(IsAlias && !GlobalAlias::isValidLinkage(Linkage)) | |||
947 | return error(NameLoc, "invalid linkage type for alias"); | |||
948 | ||||
949 | if (!isValidVisibilityForLinkage(Visibility, L)) | |||
950 | return error(NameLoc, | |||
951 | "symbol with local linkage must have default visibility"); | |||
952 | ||||
953 | Type *Ty; | |||
954 | LocTy ExplicitTypeLoc = Lex.getLoc(); | |||
955 | if (parseType(Ty) || | |||
956 | parseToken(lltok::comma, "expected comma after alias or ifunc's type")) | |||
957 | return true; | |||
958 | ||||
959 | Constant *Aliasee; | |||
960 | LocTy AliaseeLoc = Lex.getLoc(); | |||
961 | if (Lex.getKind() != lltok::kw_bitcast && | |||
962 | Lex.getKind() != lltok::kw_getelementptr && | |||
963 | Lex.getKind() != lltok::kw_addrspacecast && | |||
964 | Lex.getKind() != lltok::kw_inttoptr) { | |||
965 | if (parseGlobalTypeAndValue(Aliasee)) | |||
966 | return true; | |||
967 | } else { | |||
968 | // The bitcast dest type is not present, it is implied by the dest type. | |||
969 | ValID ID; | |||
970 | if (parseValID(ID, /*PFS=*/nullptr)) | |||
971 | return true; | |||
972 | if (ID.Kind != ValID::t_Constant) | |||
973 | return error(AliaseeLoc, "invalid aliasee"); | |||
974 | Aliasee = ID.ConstantVal; | |||
975 | } | |||
976 | ||||
977 | Type *AliaseeType = Aliasee->getType(); | |||
978 | auto *PTy = dyn_cast<PointerType>(AliaseeType); | |||
979 | if (!PTy) | |||
980 | return error(AliaseeLoc, "An alias or ifunc must have pointer type"); | |||
981 | unsigned AddrSpace = PTy->getAddressSpace(); | |||
982 | ||||
983 | if (IsAlias && !PTy->isOpaqueOrPointeeTypeMatches(Ty)) { | |||
984 | return error( | |||
985 | ExplicitTypeLoc, | |||
986 | typeComparisonErrorMessage( | |||
987 | "explicit pointee type doesn't match operand's pointee type", Ty, | |||
988 | PTy->getElementType())); | |||
989 | } | |||
990 | ||||
991 | if (!IsAlias && !PTy->getElementType()->isFunctionTy()) { | |||
992 | return error(ExplicitTypeLoc, | |||
993 | "explicit pointee type should be a function type"); | |||
994 | } | |||
995 | ||||
996 | GlobalValue *GVal = nullptr; | |||
997 | ||||
998 | // See if the alias was forward referenced, if so, prepare to replace the | |||
999 | // forward reference. | |||
1000 | if (!Name.empty()) { | |||
1001 | auto I = ForwardRefVals.find(Name); | |||
1002 | if (I != ForwardRefVals.end()) { | |||
1003 | GVal = I->second.first; | |||
1004 | ForwardRefVals.erase(Name); | |||
1005 | } else if (M->getNamedValue(Name)) { | |||
1006 | return error(NameLoc, "redefinition of global '@" + Name + "'"); | |||
1007 | } | |||
1008 | } else { | |||
1009 | auto I = ForwardRefValIDs.find(NumberedVals.size()); | |||
1010 | if (I != ForwardRefValIDs.end()) { | |||
1011 | GVal = I->second.first; | |||
1012 | ForwardRefValIDs.erase(I); | |||
1013 | } | |||
1014 | } | |||
1015 | ||||
1016 | // Okay, create the alias but do not insert it into the module yet. | |||
1017 | std::unique_ptr<GlobalIndirectSymbol> GA; | |||
1018 | if (IsAlias) | |||
1019 | GA.reset(GlobalAlias::create(Ty, AddrSpace, | |||
1020 | (GlobalValue::LinkageTypes)Linkage, Name, | |||
1021 | Aliasee, /*Parent*/ nullptr)); | |||
1022 | else | |||
1023 | GA.reset(GlobalIFunc::create(Ty, AddrSpace, | |||
1024 | (GlobalValue::LinkageTypes)Linkage, Name, | |||
1025 | Aliasee, /*Parent*/ nullptr)); | |||
1026 | GA->setThreadLocalMode(TLM); | |||
1027 | GA->setVisibility((GlobalValue::VisibilityTypes)Visibility); | |||
1028 | GA->setDLLStorageClass((GlobalValue::DLLStorageClassTypes)DLLStorageClass); | |||
1029 | GA->setUnnamedAddr(UnnamedAddr); | |||
1030 | maybeSetDSOLocal(DSOLocal, *GA); | |||
1031 | ||||
1032 | // At this point we've parsed everything except for the IndirectSymbolAttrs. | |||
1033 | // Now parse them if there are any. | |||
1034 | while (Lex.getKind() == lltok::comma) { | |||
1035 | Lex.Lex(); | |||
1036 | ||||
1037 | if (Lex.getKind() == lltok::kw_partition) { | |||
1038 | Lex.Lex(); | |||
1039 | GA->setPartition(Lex.getStrVal()); | |||
1040 | if (parseToken(lltok::StringConstant, "expected partition string")) | |||
1041 | return true; | |||
1042 | } else { | |||
1043 | return tokError("unknown alias or ifunc property!"); | |||
1044 | } | |||
1045 | } | |||
1046 | ||||
1047 | if (Name.empty()) | |||
1048 | NumberedVals.push_back(GA.get()); | |||
1049 | ||||
1050 | if (GVal) { | |||
1051 | // Verify that types agree. | |||
1052 | if (GVal->getType() != GA->getType()) | |||
1053 | return error( | |||
1054 | ExplicitTypeLoc, | |||
1055 | "forward reference and definition of alias have different types"); | |||
1056 | ||||
1057 | // If they agree, just RAUW the old value with the alias and remove the | |||
1058 | // forward ref info. | |||
1059 | GVal->replaceAllUsesWith(GA.get()); | |||
1060 | GVal->eraseFromParent(); | |||
1061 | } | |||
1062 | ||||
1063 | // Insert into the module, we know its name won't collide now. | |||
1064 | if (IsAlias) | |||
1065 | M->getAliasList().push_back(cast<GlobalAlias>(GA.get())); | |||
1066 | else | |||
1067 | M->getIFuncList().push_back(cast<GlobalIFunc>(GA.get())); | |||
1068 | assert(GA->getName() == Name && "Should not be a name conflict!")((void)0); | |||
1069 | ||||
1070 | // The module owns this now | |||
1071 | GA.release(); | |||
1072 | ||||
1073 | return false; | |||
1074 | } | |||
1075 | ||||
1076 | /// parseGlobal | |||
1077 | /// ::= GlobalVar '=' OptionalLinkage OptionalPreemptionSpecifier | |||
1078 | /// OptionalVisibility OptionalDLLStorageClass | |||
1079 | /// OptionalThreadLocal OptionalUnnamedAddr OptionalAddrSpace | |||
1080 | /// OptionalExternallyInitialized GlobalType Type Const OptionalAttrs | |||
1081 | /// ::= OptionalLinkage OptionalPreemptionSpecifier OptionalVisibility | |||
1082 | /// OptionalDLLStorageClass OptionalThreadLocal OptionalUnnamedAddr | |||
1083 | /// OptionalAddrSpace OptionalExternallyInitialized GlobalType Type | |||
1084 | /// Const OptionalAttrs | |||
1085 | /// | |||
1086 | /// Everything up to and including OptionalUnnamedAddr has been parsed | |||
1087 | /// already. | |||
1088 | /// | |||
1089 | bool LLParser::parseGlobal(const std::string &Name, LocTy NameLoc, | |||
1090 | unsigned Linkage, bool HasLinkage, | |||
1091 | unsigned Visibility, unsigned DLLStorageClass, | |||
1092 | bool DSOLocal, GlobalVariable::ThreadLocalMode TLM, | |||
1093 | GlobalVariable::UnnamedAddr UnnamedAddr) { | |||
1094 | if (!isValidVisibilityForLinkage(Visibility, Linkage)) | |||
1095 | return error(NameLoc, | |||
1096 | "symbol with local linkage must have default visibility"); | |||
1097 | ||||
1098 | unsigned AddrSpace; | |||
1099 | bool IsConstant, IsExternallyInitialized; | |||
1100 | LocTy IsExternallyInitializedLoc; | |||
1101 | LocTy TyLoc; | |||
1102 | ||||
1103 | Type *Ty = nullptr; | |||
1104 | if (parseOptionalAddrSpace(AddrSpace) || | |||
1105 | parseOptionalToken(lltok::kw_externally_initialized, | |||
1106 | IsExternallyInitialized, | |||
1107 | &IsExternallyInitializedLoc) || | |||
1108 | parseGlobalType(IsConstant) || parseType(Ty, TyLoc)) | |||
1109 | return true; | |||
1110 | ||||
1111 | // If the linkage is specified and is external, then no initializer is | |||
1112 | // present. | |||
1113 | Constant *Init = nullptr; | |||
1114 | if (!HasLinkage || | |||
1115 | !GlobalValue::isValidDeclarationLinkage( | |||
1116 | (GlobalValue::LinkageTypes)Linkage)) { | |||
1117 | if (parseGlobalValue(Ty, Init)) | |||
1118 | return true; | |||
1119 | } | |||
1120 | ||||
1121 | if (Ty->isFunctionTy() || !PointerType::isValidElementType(Ty)) | |||
1122 | return error(TyLoc, "invalid type for global variable"); | |||
1123 | ||||
1124 | GlobalValue *GVal = nullptr; | |||
1125 | ||||
1126 | // See if the global was forward referenced, if so, use the global. | |||
1127 | if (!Name.empty()) { | |||
1128 | auto I = ForwardRefVals.find(Name); | |||
1129 | if (I != ForwardRefVals.end()) { | |||
1130 | GVal = I->second.first; | |||
1131 | ForwardRefVals.erase(I); | |||
1132 | } else if (M->getNamedValue(Name)) { | |||
1133 | return error(NameLoc, "redefinition of global '@" + Name + "'"); | |||
1134 | } | |||
1135 | } else { | |||
1136 | auto I = ForwardRefValIDs.find(NumberedVals.size()); | |||
1137 | if (I != ForwardRefValIDs.end()) { | |||
1138 | GVal = I->second.first; | |||
1139 | ForwardRefValIDs.erase(I); | |||
1140 | } | |||
1141 | } | |||
1142 | ||||
1143 | GlobalVariable *GV = new GlobalVariable( | |||
1144 | *M, Ty, false, GlobalValue::ExternalLinkage, nullptr, Name, nullptr, | |||
1145 | GlobalVariable::NotThreadLocal, AddrSpace); | |||
1146 | ||||
1147 | if (Name.empty()) | |||
1148 | NumberedVals.push_back(GV); | |||
1149 | ||||
1150 | // Set the parsed properties on the global. | |||
1151 | if (Init) | |||
1152 | GV->setInitializer(Init); | |||
1153 | GV->setConstant(IsConstant); | |||
1154 | GV->setLinkage((GlobalValue::LinkageTypes)Linkage); | |||
1155 | maybeSetDSOLocal(DSOLocal, *GV); | |||
1156 | GV->setVisibility((GlobalValue::VisibilityTypes)Visibility); | |||
1157 | GV->setDLLStorageClass((GlobalValue::DLLStorageClassTypes)DLLStorageClass); | |||
1158 | GV->setExternallyInitialized(IsExternallyInitialized); | |||
1159 | GV->setThreadLocalMode(TLM); | |||
1160 | GV->setUnnamedAddr(UnnamedAddr); | |||
1161 | ||||
1162 | if (GVal) { | |||
1163 | if (!GVal->getType()->isOpaque() && GVal->getValueType() != Ty) | |||
1164 | return error( | |||
1165 | TyLoc, | |||
1166 | "forward reference and definition of global have different types"); | |||
1167 | ||||
1168 | GVal->replaceAllUsesWith(GV); | |||
1169 | GVal->eraseFromParent(); | |||
1170 | } | |||
1171 | ||||
1172 | // parse attributes on the global. | |||
1173 | while (Lex.getKind() == lltok::comma) { | |||
1174 | Lex.Lex(); | |||
1175 | ||||
1176 | if (Lex.getKind() == lltok::kw_section) { | |||
1177 | Lex.Lex(); | |||
1178 | GV->setSection(Lex.getStrVal()); | |||
1179 | if (parseToken(lltok::StringConstant, "expected global section string")) | |||
1180 | return true; | |||
1181 | } else if (Lex.getKind() == lltok::kw_partition) { | |||
1182 | Lex.Lex(); | |||
1183 | GV->setPartition(Lex.getStrVal()); | |||
1184 | if (parseToken(lltok::StringConstant, "expected partition string")) | |||
1185 | return true; | |||
1186 | } else if (Lex.getKind() == lltok::kw_align) { | |||
1187 | MaybeAlign Alignment; | |||
1188 | if (parseOptionalAlignment(Alignment)) | |||
1189 | return true; | |||
1190 | GV->setAlignment(Alignment); | |||
1191 | } else if (Lex.getKind() == lltok::MetadataVar) { | |||
1192 | if (parseGlobalObjectMetadataAttachment(*GV)) | |||
1193 | return true; | |||
1194 | } else { | |||
1195 | Comdat *C; | |||
1196 | if (parseOptionalComdat(Name, C)) | |||
1197 | return true; | |||
1198 | if (C) | |||
1199 | GV->setComdat(C); | |||
1200 | else | |||
1201 | return tokError("unknown global variable property!"); | |||
1202 | } | |||
1203 | } | |||
1204 | ||||
1205 | AttrBuilder Attrs; | |||
1206 | LocTy BuiltinLoc; | |||
1207 | std::vector<unsigned> FwdRefAttrGrps; | |||
1208 | if (parseFnAttributeValuePairs(Attrs, FwdRefAttrGrps, false, BuiltinLoc)) | |||
1209 | return true; | |||
1210 | if (Attrs.hasAttributes() || !FwdRefAttrGrps.empty()) { | |||
1211 | GV->setAttributes(AttributeSet::get(Context, Attrs)); | |||
1212 | ForwardRefAttrGroups[GV] = FwdRefAttrGrps; | |||
1213 | } | |||
1214 | ||||
1215 | return false; | |||
1216 | } | |||
1217 | ||||
1218 | /// parseUnnamedAttrGrp | |||
1219 | /// ::= 'attributes' AttrGrpID '=' '{' AttrValPair+ '}' | |||
1220 | bool LLParser::parseUnnamedAttrGrp() { | |||
1221 | assert(Lex.getKind() == lltok::kw_attributes)((void)0); | |||
1222 | LocTy AttrGrpLoc = Lex.getLoc(); | |||
1223 | Lex.Lex(); | |||
1224 | ||||
1225 | if (Lex.getKind() != lltok::AttrGrpID) | |||
1226 | return tokError("expected attribute group id"); | |||
1227 | ||||
1228 | unsigned VarID = Lex.getUIntVal(); | |||
1229 | std::vector<unsigned> unused; | |||
1230 | LocTy BuiltinLoc; | |||
1231 | Lex.Lex(); | |||
1232 | ||||
1233 | if (parseToken(lltok::equal, "expected '=' here") || | |||
1234 | parseToken(lltok::lbrace, "expected '{' here") || | |||
1235 | parseFnAttributeValuePairs(NumberedAttrBuilders[VarID], unused, true, | |||
1236 | BuiltinLoc) || | |||
1237 | parseToken(lltok::rbrace, "expected end of attribute group")) | |||
1238 | return true; | |||
1239 | ||||
1240 | if (!NumberedAttrBuilders[VarID].hasAttributes()) | |||
1241 | return error(AttrGrpLoc, "attribute group has no attributes"); | |||
1242 | ||||
1243 | return false; | |||
1244 | } | |||
1245 | ||||
1246 | static Attribute::AttrKind tokenToAttribute(lltok::Kind Kind) { | |||
1247 | switch (Kind) { | |||
1248 | #define GET_ATTR_NAMES | |||
1249 | #define ATTRIBUTE_ENUM(ENUM_NAME, DISPLAY_NAME) \ | |||
1250 | case lltok::kw_##DISPLAY_NAME: \ | |||
1251 | return Attribute::ENUM_NAME; | |||
1252 | #include "llvm/IR/Attributes.inc" | |||
1253 | default: | |||
1254 | return Attribute::None; | |||
1255 | } | |||
1256 | } | |||
1257 | ||||
1258 | bool LLParser::parseEnumAttribute(Attribute::AttrKind Attr, AttrBuilder &B, | |||
1259 | bool InAttrGroup) { | |||
1260 | if (Attribute::isTypeAttrKind(Attr)) | |||
1261 | return parseRequiredTypeAttr(B, Lex.getKind(), Attr); | |||
1262 | ||||
1263 | switch (Attr) { | |||
1264 | case Attribute::Alignment: { | |||
1265 | MaybeAlign Alignment; | |||
1266 | if (InAttrGroup) { | |||
1267 | uint32_t Value = 0; | |||
1268 | Lex.Lex(); | |||
1269 | if (parseToken(lltok::equal, "expected '=' here") || parseUInt32(Value)) | |||
1270 | return true; | |||
1271 | Alignment = Align(Value); | |||
1272 | } else { | |||
1273 | if (parseOptionalAlignment(Alignment, true)) | |||
1274 | return true; | |||
1275 | } | |||
1276 | B.addAlignmentAttr(Alignment); | |||
1277 | return false; | |||
1278 | } | |||
1279 | case Attribute::StackAlignment: { | |||
1280 | unsigned Alignment; | |||
1281 | if (InAttrGroup) { | |||
1282 | Lex.Lex(); | |||
1283 | if (parseToken(lltok::equal, "expected '=' here") || | |||
1284 | parseUInt32(Alignment)) | |||
1285 | return true; | |||
1286 | } else { | |||
1287 | if (parseOptionalStackAlignment(Alignment)) | |||
1288 | return true; | |||
1289 | } | |||
1290 | B.addStackAlignmentAttr(Alignment); | |||
1291 | return false; | |||
1292 | } | |||
1293 | case Attribute::AllocSize: { | |||
1294 | unsigned ElemSizeArg; | |||
1295 | Optional<unsigned> NumElemsArg; | |||
1296 | if (parseAllocSizeArguments(ElemSizeArg, NumElemsArg)) | |||
1297 | return true; | |||
1298 | B.addAllocSizeAttr(ElemSizeArg, NumElemsArg); | |||
1299 | return false; | |||
1300 | } | |||
1301 | case Attribute::VScaleRange: { | |||
1302 | unsigned MinValue, MaxValue; | |||
1303 | if (parseVScaleRangeArguments(MinValue, MaxValue)) | |||
1304 | return true; | |||
1305 | B.addVScaleRangeAttr(MinValue, MaxValue); | |||
1306 | return false; | |||
1307 | } | |||
1308 | case Attribute::Dereferenceable: { | |||
1309 | uint64_t Bytes; | |||
1310 | if (parseOptionalDerefAttrBytes(lltok::kw_dereferenceable, Bytes)) | |||
1311 | return true; | |||
1312 | B.addDereferenceableAttr(Bytes); | |||
1313 | return false; | |||
1314 | } | |||
1315 | case Attribute::DereferenceableOrNull: { | |||
1316 | uint64_t Bytes; | |||
1317 | if (parseOptionalDerefAttrBytes(lltok::kw_dereferenceable_or_null, Bytes)) | |||
1318 | return true; | |||
1319 | B.addDereferenceableOrNullAttr(Bytes); | |||
1320 | return false; | |||
1321 | } | |||
1322 | default: | |||
1323 | B.addAttribute(Attr); | |||
1324 | Lex.Lex(); | |||
1325 | return false; | |||
1326 | } | |||
1327 | } | |||
1328 | ||||
1329 | /// parseFnAttributeValuePairs | |||
1330 | /// ::= <attr> | <attr> '=' <value> | |||
1331 | bool LLParser::parseFnAttributeValuePairs(AttrBuilder &B, | |||
1332 | std::vector<unsigned> &FwdRefAttrGrps, | |||
1333 | bool InAttrGrp, LocTy &BuiltinLoc) { | |||
1334 | bool HaveError = false; | |||
1335 | ||||
1336 | B.clear(); | |||
1337 | ||||
1338 | while (true) { | |||
1339 | lltok::Kind Token = Lex.getKind(); | |||
1340 | if (Token == lltok::rbrace) | |||
1341 | return HaveError; // Finished. | |||
1342 | ||||
1343 | if (Token == lltok::StringConstant) { | |||
1344 | if (parseStringAttribute(B)) | |||
1345 | return true; | |||
1346 | continue; | |||
1347 | } | |||
1348 | ||||
1349 | if (Token == lltok::AttrGrpID) { | |||
1350 | // Allow a function to reference an attribute group: | |||
1351 | // | |||
1352 | // define void @foo() #1 { ... } | |||
1353 | if (InAttrGrp) { | |||
1354 | HaveError |= error( | |||
1355 | Lex.getLoc(), | |||
1356 | "cannot have an attribute group reference in an attribute group"); | |||
1357 | } else { | |||
1358 | // Save the reference to the attribute group. We'll fill it in later. | |||
1359 | FwdRefAttrGrps.push_back(Lex.getUIntVal()); | |||
1360 | } | |||
1361 | Lex.Lex(); | |||
1362 | continue; | |||
1363 | } | |||
1364 | ||||
1365 | SMLoc Loc = Lex.getLoc(); | |||
1366 | if (Token == lltok::kw_builtin) | |||
1367 | BuiltinLoc = Loc; | |||
1368 | ||||
1369 | Attribute::AttrKind Attr = tokenToAttribute(Token); | |||
1370 | if (Attr == Attribute::None) { | |||
1371 | if (!InAttrGrp) | |||
1372 | return HaveError; | |||
1373 | return error(Lex.getLoc(), "unterminated attribute group"); | |||
1374 | } | |||
1375 | ||||
1376 | if (parseEnumAttribute(Attr, B, InAttrGrp)) | |||
1377 | return true; | |||
1378 | ||||
1379 | // As a hack, we allow function alignment to be initially parsed as an | |||
1380 | // attribute on a function declaration/definition or added to an attribute | |||
1381 | // group and later moved to the alignment field. | |||
1382 | if (!Attribute::canUseAsFnAttr(Attr) && Attr != Attribute::Alignment) | |||
1383 | HaveError |= error(Loc, "this attribute does not apply to functions"); | |||
1384 | } | |||
1385 | } | |||
1386 | ||||
1387 | //===----------------------------------------------------------------------===// | |||
1388 | // GlobalValue Reference/Resolution Routines. | |||
1389 | //===----------------------------------------------------------------------===// | |||
1390 | ||||
1391 | static inline GlobalValue *createGlobalFwdRef(Module *M, PointerType *PTy) { | |||
1392 | // For opaque pointers, the used global type does not matter. We will later | |||
1393 | // RAUW it with a global/function of the correct type. | |||
1394 | if (PTy->isOpaque()) | |||
1395 | return new GlobalVariable(*M, Type::getInt8Ty(M->getContext()), false, | |||
1396 | GlobalValue::ExternalWeakLinkage, nullptr, "", | |||
1397 | nullptr, GlobalVariable::NotThreadLocal, | |||
1398 | PTy->getAddressSpace()); | |||
1399 | ||||
1400 | if (auto *FT = dyn_cast<FunctionType>(PTy->getPointerElementType())) | |||
1401 | return Function::Create(FT, GlobalValue::ExternalWeakLinkage, | |||
1402 | PTy->getAddressSpace(), "", M); | |||
1403 | else | |||
1404 | return new GlobalVariable(*M, PTy->getPointerElementType(), false, | |||
1405 | GlobalValue::ExternalWeakLinkage, nullptr, "", | |||
1406 | nullptr, GlobalVariable::NotThreadLocal, | |||
1407 | PTy->getAddressSpace()); | |||
1408 | } | |||
1409 | ||||
1410 | Value *LLParser::checkValidVariableType(LocTy Loc, const Twine &Name, Type *Ty, | |||
1411 | Value *Val, bool IsCall) { | |||
1412 | Type *ValTy = Val->getType(); | |||
1413 | if (ValTy == Ty) | |||
1414 | return Val; | |||
1415 | // For calls, we also allow opaque pointers. | |||
1416 | if (IsCall && ValTy == PointerType::get(Ty->getContext(), | |||
1417 | Ty->getPointerAddressSpace())) | |||
1418 | return Val; | |||
1419 | if (Ty->isLabelTy()) | |||
1420 | error(Loc, "'" + Name + "' is not a basic block"); | |||
1421 | else | |||
1422 | error(Loc, "'" + Name + "' defined with type '" + | |||
1423 | getTypeString(Val->getType()) + "' but expected '" + | |||
1424 | getTypeString(Ty) + "'"); | |||
1425 | return nullptr; | |||
1426 | } | |||
1427 | ||||
1428 | /// getGlobalVal - Get a value with the specified name or ID, creating a | |||
1429 | /// forward reference record if needed. This can return null if the value | |||
1430 | /// exists but does not have the right type. | |||
1431 | GlobalValue *LLParser::getGlobalVal(const std::string &Name, Type *Ty, | |||
1432 | LocTy Loc, bool IsCall) { | |||
1433 | PointerType *PTy = dyn_cast<PointerType>(Ty); | |||
1434 | if (!PTy) { | |||
1435 | error(Loc, "global variable reference must have pointer type"); | |||
1436 | return nullptr; | |||
1437 | } | |||
1438 | ||||
1439 | // Look this name up in the normal function symbol table. | |||
1440 | GlobalValue *Val = | |||
1441 | cast_or_null<GlobalValue>(M->getValueSymbolTable().lookup(Name)); | |||
1442 | ||||
1443 | // If this is a forward reference for the value, see if we already created a | |||
1444 | // forward ref record. | |||
1445 | if (!Val) { | |||
1446 | auto I = ForwardRefVals.find(Name); | |||
1447 | if (I != ForwardRefVals.end()) | |||
1448 | Val = I->second.first; | |||
1449 | } | |||
1450 | ||||
1451 | // If we have the value in the symbol table or fwd-ref table, return it. | |||
1452 | if (Val) | |||
1453 | return cast_or_null<GlobalValue>( | |||
1454 | checkValidVariableType(Loc, "@" + Name, Ty, Val, IsCall)); | |||
1455 | ||||
1456 | // Otherwise, create a new forward reference for this value and remember it. | |||
1457 | GlobalValue *FwdVal = createGlobalFwdRef(M, PTy); | |||
1458 | ForwardRefVals[Name] = std::make_pair(FwdVal, Loc); | |||
1459 | return FwdVal; | |||
1460 | } | |||
1461 | ||||
1462 | GlobalValue *LLParser::getGlobalVal(unsigned ID, Type *Ty, LocTy Loc, | |||
1463 | bool IsCall) { | |||
1464 | PointerType *PTy = dyn_cast<PointerType>(Ty); | |||
1465 | if (!PTy) { | |||
1466 | error(Loc, "global variable reference must have pointer type"); | |||
1467 | return nullptr; | |||
1468 | } | |||
1469 | ||||
1470 | GlobalValue *Val = ID < NumberedVals.size() ? NumberedVals[ID] : nullptr; | |||
1471 | ||||
1472 | // If this is a forward reference for the value, see if we already created a | |||
1473 | // forward ref record. | |||
1474 | if (!Val) { | |||
1475 | auto I = ForwardRefValIDs.find(ID); | |||
1476 | if (I != ForwardRefValIDs.end()) | |||
1477 | Val = I->second.first; | |||
1478 | } | |||
1479 | ||||
1480 | // If we have the value in the symbol table or fwd-ref table, return it. | |||
1481 | if (Val) | |||
1482 | return cast_or_null<GlobalValue>( | |||
1483 | checkValidVariableType(Loc, "@" + Twine(ID), Ty, Val, IsCall)); | |||
1484 | ||||
1485 | // Otherwise, create a new forward reference for this value and remember it. | |||
1486 | GlobalValue *FwdVal = createGlobalFwdRef(M, PTy); | |||
1487 | ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc); | |||
1488 | return FwdVal; | |||
1489 | } | |||
1490 | ||||
1491 | //===----------------------------------------------------------------------===// | |||
1492 | // Comdat Reference/Resolution Routines. | |||
1493 | //===----------------------------------------------------------------------===// | |||
1494 | ||||
1495 | Comdat *LLParser::getComdat(const std::string &Name, LocTy Loc) { | |||
1496 | // Look this name up in the comdat symbol table. | |||
1497 | Module::ComdatSymTabType &ComdatSymTab = M->getComdatSymbolTable(); | |||
1498 | Module::ComdatSymTabType::iterator I = ComdatSymTab.find(Name); | |||
1499 | if (I != ComdatSymTab.end()) | |||
1500 | return &I->second; | |||
1501 | ||||
1502 | // Otherwise, create a new forward reference for this value and remember it. | |||
1503 | Comdat *C = M->getOrInsertComdat(Name); | |||
1504 | ForwardRefComdats[Name] = Loc; | |||
1505 | return C; | |||
1506 | } | |||
1507 | ||||
1508 | //===----------------------------------------------------------------------===// | |||
1509 | // Helper Routines. | |||
1510 | //===----------------------------------------------------------------------===// | |||
1511 | ||||
1512 | /// parseToken - If the current token has the specified kind, eat it and return | |||
1513 | /// success. Otherwise, emit the specified error and return failure. | |||
1514 | bool LLParser::parseToken(lltok::Kind T, const char *ErrMsg) { | |||
1515 | if (Lex.getKind() != T) | |||
1516 | return tokError(ErrMsg); | |||
1517 | Lex.Lex(); | |||
1518 | return false; | |||
1519 | } | |||
1520 | ||||
1521 | /// parseStringConstant | |||
1522 | /// ::= StringConstant | |||
1523 | bool LLParser::parseStringConstant(std::string &Result) { | |||
1524 | if (Lex.getKind() != lltok::StringConstant) | |||
1525 | return tokError("expected string constant"); | |||
1526 | Result = Lex.getStrVal(); | |||
1527 | Lex.Lex(); | |||
1528 | return false; | |||
1529 | } | |||
1530 | ||||
1531 | /// parseUInt32 | |||
1532 | /// ::= uint32 | |||
1533 | bool LLParser::parseUInt32(uint32_t &Val) { | |||
1534 | if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned()) | |||
1535 | return tokError("expected integer"); | |||
1536 | uint64_t Val64 = Lex.getAPSIntVal().getLimitedValue(0xFFFFFFFFULL+1); | |||
1537 | if (Val64 != unsigned(Val64)) | |||
1538 | return tokError("expected 32-bit integer (too large)"); | |||
1539 | Val = Val64; | |||
1540 | Lex.Lex(); | |||
1541 | return false; | |||
1542 | } | |||
1543 | ||||
1544 | /// parseUInt64 | |||
1545 | /// ::= uint64 | |||
1546 | bool LLParser::parseUInt64(uint64_t &Val) { | |||
1547 | if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned()) | |||
1548 | return tokError("expected integer"); | |||
1549 | Val = Lex.getAPSIntVal().getLimitedValue(); | |||
1550 | Lex.Lex(); | |||
1551 | return false; | |||
1552 | } | |||
1553 | ||||
1554 | /// parseTLSModel | |||
1555 | /// := 'localdynamic' | |||
1556 | /// := 'initialexec' | |||
1557 | /// := 'localexec' | |||
1558 | bool LLParser::parseTLSModel(GlobalVariable::ThreadLocalMode &TLM) { | |||
1559 | switch (Lex.getKind()) { | |||
1560 | default: | |||
1561 | return tokError("expected localdynamic, initialexec or localexec"); | |||
1562 | case lltok::kw_localdynamic: | |||
1563 | TLM = GlobalVariable::LocalDynamicTLSModel; | |||
1564 | break; | |||
1565 | case lltok::kw_initialexec: | |||
1566 | TLM = GlobalVariable::InitialExecTLSModel; | |||
1567 | break; | |||
1568 | case lltok::kw_localexec: | |||
1569 | TLM = GlobalVariable::LocalExecTLSModel; | |||
1570 | break; | |||
1571 | } | |||
1572 | ||||
1573 | Lex.Lex(); | |||
1574 | return false; | |||
1575 | } | |||
1576 | ||||
1577 | /// parseOptionalThreadLocal | |||
1578 | /// := /*empty*/ | |||
1579 | /// := 'thread_local' | |||
1580 | /// := 'thread_local' '(' tlsmodel ')' | |||
1581 | bool LLParser::parseOptionalThreadLocal(GlobalVariable::ThreadLocalMode &TLM) { | |||
1582 | TLM = GlobalVariable::NotThreadLocal; | |||
1583 | if (!EatIfPresent(lltok::kw_thread_local)) | |||
1584 | return false; | |||
1585 | ||||
1586 | TLM = GlobalVariable::GeneralDynamicTLSModel; | |||
1587 | if (Lex.getKind() == lltok::lparen) { | |||
1588 | Lex.Lex(); | |||
1589 | return parseTLSModel(TLM) || | |||
1590 | parseToken(lltok::rparen, "expected ')' after thread local model"); | |||
1591 | } | |||
1592 | return false; | |||
1593 | } | |||
1594 | ||||
1595 | /// parseOptionalAddrSpace | |||
1596 | /// := /*empty*/ | |||
1597 | /// := 'addrspace' '(' uint32 ')' | |||
1598 | bool LLParser::parseOptionalAddrSpace(unsigned &AddrSpace, unsigned DefaultAS) { | |||
1599 | AddrSpace = DefaultAS; | |||
1600 | if (!EatIfPresent(lltok::kw_addrspace)) | |||
1601 | return false; | |||
1602 | return parseToken(lltok::lparen, "expected '(' in address space") || | |||
1603 | parseUInt32(AddrSpace) || | |||
1604 | parseToken(lltok::rparen, "expected ')' in address space"); | |||
1605 | } | |||
1606 | ||||
1607 | /// parseStringAttribute | |||
1608 | /// := StringConstant | |||
1609 | /// := StringConstant '=' StringConstant | |||
1610 | bool LLParser::parseStringAttribute(AttrBuilder &B) { | |||
1611 | std::string Attr = Lex.getStrVal(); | |||
1612 | Lex.Lex(); | |||
1613 | std::string Val; | |||
1614 | if (EatIfPresent(lltok::equal) && parseStringConstant(Val)) | |||
1615 | return true; | |||
1616 | B.addAttribute(Attr, Val); | |||
1617 | return false; | |||
1618 | } | |||
1619 | ||||
1620 | /// Parse a potentially empty list of parameter or return attributes. | |||
1621 | bool LLParser::parseOptionalParamOrReturnAttrs(AttrBuilder &B, bool IsParam) { | |||
1622 | bool HaveError = false; | |||
1623 | ||||
1624 | B.clear(); | |||
1625 | ||||
1626 | while (true) { | |||
1627 | lltok::Kind Token = Lex.getKind(); | |||
1628 | if (Token == lltok::StringConstant) { | |||
1629 | if (parseStringAttribute(B)) | |||
1630 | return true; | |||
1631 | continue; | |||
1632 | } | |||
1633 | ||||
1634 | SMLoc Loc = Lex.getLoc(); | |||
1635 | Attribute::AttrKind Attr = tokenToAttribute(Token); | |||
1636 | if (Attr == Attribute::None) | |||
1637 | return HaveError; | |||
1638 | ||||
1639 | if (parseEnumAttribute(Attr, B, /* InAttrGroup */ false)) | |||
1640 | return true; | |||
1641 | ||||
1642 | if (IsParam && !Attribute::canUseAsParamAttr(Attr)) | |||
1643 | HaveError |= error(Loc, "this attribute does not apply to parameters"); | |||
1644 | if (!IsParam && !Attribute::canUseAsRetAttr(Attr)) | |||
1645 | HaveError |= error(Loc, "this attribute does not apply to return values"); | |||
1646 | } | |||
1647 | } | |||
1648 | ||||
1649 | static unsigned parseOptionalLinkageAux(lltok::Kind Kind, bool &HasLinkage) { | |||
1650 | HasLinkage = true; | |||
1651 | switch (Kind) { | |||
1652 | default: | |||
1653 | HasLinkage = false; | |||
1654 | return GlobalValue::ExternalLinkage; | |||
1655 | case lltok::kw_private: | |||
1656 | return GlobalValue::PrivateLinkage; | |||
1657 | case lltok::kw_internal: | |||
1658 | return GlobalValue::InternalLinkage; | |||
1659 | case lltok::kw_weak: | |||
1660 | return GlobalValue::WeakAnyLinkage; | |||
1661 | case lltok::kw_weak_odr: | |||
1662 | return GlobalValue::WeakODRLinkage; | |||
1663 | case lltok::kw_linkonce: | |||
1664 | return GlobalValue::LinkOnceAnyLinkage; | |||
1665 | case lltok::kw_linkonce_odr: | |||
1666 | return GlobalValue::LinkOnceODRLinkage; | |||
1667 | case lltok::kw_available_externally: | |||
1668 | return GlobalValue::AvailableExternallyLinkage; | |||
1669 | case lltok::kw_appending: | |||
1670 | return GlobalValue::AppendingLinkage; | |||
1671 | case lltok::kw_common: | |||
1672 | return GlobalValue::CommonLinkage; | |||
1673 | case lltok::kw_extern_weak: | |||
1674 | return GlobalValue::ExternalWeakLinkage; | |||
1675 | case lltok::kw_external: | |||
1676 | return GlobalValue::ExternalLinkage; | |||
1677 | } | |||
1678 | } | |||
1679 | ||||
1680 | /// parseOptionalLinkage | |||
1681 | /// ::= /*empty*/ | |||
1682 | /// ::= 'private' | |||
1683 | /// ::= 'internal' | |||
1684 | /// ::= 'weak' | |||
1685 | /// ::= 'weak_odr' | |||
1686 | /// ::= 'linkonce' | |||
1687 | /// ::= 'linkonce_odr' | |||
1688 | /// ::= 'available_externally' | |||
1689 | /// ::= 'appending' | |||
1690 | /// ::= 'common' | |||
1691 | /// ::= 'extern_weak' | |||
1692 | /// ::= 'external' | |||
1693 | bool LLParser::parseOptionalLinkage(unsigned &Res, bool &HasLinkage, | |||
1694 | unsigned &Visibility, | |||
1695 | unsigned &DLLStorageClass, bool &DSOLocal) { | |||
1696 | Res = parseOptionalLinkageAux(Lex.getKind(), HasLinkage); | |||
1697 | if (HasLinkage) | |||
1698 | Lex.Lex(); | |||
1699 | parseOptionalDSOLocal(DSOLocal); | |||
1700 | parseOptionalVisibility(Visibility); | |||
1701 | parseOptionalDLLStorageClass(DLLStorageClass); | |||
1702 | ||||
1703 | if (DSOLocal && DLLStorageClass == GlobalValue::DLLImportStorageClass) { | |||
1704 | return error(Lex.getLoc(), "dso_location and DLL-StorageClass mismatch"); | |||
1705 | } | |||
1706 | ||||
1707 | return false; | |||
1708 | } | |||
1709 | ||||
1710 | void LLParser::parseOptionalDSOLocal(bool &DSOLocal) { | |||
1711 | switch (Lex.getKind()) { | |||
1712 | default: | |||
1713 | DSOLocal = false; | |||
1714 | break; | |||
1715 | case lltok::kw_dso_local: | |||
1716 | DSOLocal = true; | |||
1717 | Lex.Lex(); | |||
1718 | break; | |||
1719 | case lltok::kw_dso_preemptable: | |||
1720 | DSOLocal = false; | |||
1721 | Lex.Lex(); | |||
1722 | break; | |||
1723 | } | |||
1724 | } | |||
1725 | ||||
1726 | /// parseOptionalVisibility | |||
1727 | /// ::= /*empty*/ | |||
1728 | /// ::= 'default' | |||
1729 | /// ::= 'hidden' | |||
1730 | /// ::= 'protected' | |||
1731 | /// | |||
1732 | void LLParser::parseOptionalVisibility(unsigned &Res) { | |||
1733 | switch (Lex.getKind()) { | |||
1734 | default: | |||
1735 | Res = GlobalValue::DefaultVisibility; | |||
1736 | return; | |||
1737 | case lltok::kw_default: | |||
1738 | Res = GlobalValue::DefaultVisibility; | |||
1739 | break; | |||
1740 | case lltok::kw_hidden: | |||
1741 | Res = GlobalValue::HiddenVisibility; | |||
1742 | break; | |||
1743 | case lltok::kw_protected: | |||
1744 | Res = GlobalValue::ProtectedVisibility; | |||
1745 | break; | |||
1746 | } | |||
1747 | Lex.Lex(); | |||
1748 | } | |||
1749 | ||||
1750 | /// parseOptionalDLLStorageClass | |||
1751 | /// ::= /*empty*/ | |||
1752 | /// ::= 'dllimport' | |||
1753 | /// ::= 'dllexport' | |||
1754 | /// | |||
1755 | void LLParser::parseOptionalDLLStorageClass(unsigned &Res) { | |||
1756 | switch (Lex.getKind()) { | |||
1757 | default: | |||
1758 | Res = GlobalValue::DefaultStorageClass; | |||
1759 | return; | |||
1760 | case lltok::kw_dllimport: | |||
1761 | Res = GlobalValue::DLLImportStorageClass; | |||
1762 | break; | |||
1763 | case lltok::kw_dllexport: | |||
1764 | Res = GlobalValue::DLLExportStorageClass; | |||
1765 | break; | |||
1766 | } | |||
1767 | Lex.Lex(); | |||
1768 | } | |||
1769 | ||||
1770 | /// parseOptionalCallingConv | |||
1771 | /// ::= /*empty*/ | |||
1772 | /// ::= 'ccc' | |||
1773 | /// ::= 'fastcc' | |||
1774 | /// ::= 'intel_ocl_bicc' | |||
1775 | /// ::= 'coldcc' | |||
1776 | /// ::= 'cfguard_checkcc' | |||
1777 | /// ::= 'x86_stdcallcc' | |||
1778 | /// ::= 'x86_fastcallcc' | |||
1779 | /// ::= 'x86_thiscallcc' | |||
1780 | /// ::= 'x86_vectorcallcc' | |||
1781 | /// ::= 'arm_apcscc' | |||
1782 | /// ::= 'arm_aapcscc' | |||
1783 | /// ::= 'arm_aapcs_vfpcc' | |||
1784 | /// ::= 'aarch64_vector_pcs' | |||
1785 | /// ::= 'aarch64_sve_vector_pcs' | |||
1786 | /// ::= 'msp430_intrcc' | |||
1787 | /// ::= 'avr_intrcc' | |||
1788 | /// ::= 'avr_signalcc' | |||
1789 | /// ::= 'ptx_kernel' | |||
1790 | /// ::= 'ptx_device' | |||
1791 | /// ::= 'spir_func' | |||
1792 | /// ::= 'spir_kernel' | |||
1793 | /// ::= 'x86_64_sysvcc' | |||
1794 | /// ::= 'win64cc' | |||
1795 | /// ::= 'webkit_jscc' | |||
1796 | /// ::= 'anyregcc' | |||
1797 | /// ::= 'preserve_mostcc' | |||
1798 | /// ::= 'preserve_allcc' | |||
1799 | /// ::= 'ghccc' | |||
1800 | /// ::= 'swiftcc' | |||
1801 | /// ::= 'swifttailcc' | |||
1802 | /// ::= 'x86_intrcc' | |||
1803 | /// ::= 'hhvmcc' | |||
1804 | /// ::= 'hhvm_ccc' | |||
1805 | /// ::= 'cxx_fast_tlscc' | |||
1806 | /// ::= 'amdgpu_vs' | |||
1807 | /// ::= 'amdgpu_ls' | |||
1808 | /// ::= 'amdgpu_hs' | |||
1809 | /// ::= 'amdgpu_es' | |||
1810 | /// ::= 'amdgpu_gs' | |||
1811 | /// ::= 'amdgpu_ps' | |||
1812 | /// ::= 'amdgpu_cs' | |||
1813 | /// ::= 'amdgpu_kernel' | |||
1814 | /// ::= 'tailcc' | |||
1815 | /// ::= 'cc' UINT | |||
1816 | /// | |||
1817 | bool LLParser::parseOptionalCallingConv(unsigned &CC) { | |||
1818 | switch (Lex.getKind()) { | |||
1819 | default: CC = CallingConv::C; return false; | |||
1820 | case lltok::kw_ccc: CC = CallingConv::C; break; | |||
1821 | case lltok::kw_fastcc: CC = CallingConv::Fast; break; | |||
1822 | case lltok::kw_coldcc: CC = CallingConv::Cold; break; | |||
1823 | case lltok::kw_cfguard_checkcc: CC = CallingConv::CFGuard_Check; break; | |||
1824 | case lltok::kw_x86_stdcallcc: CC = CallingConv::X86_StdCall; break; | |||
1825 | case lltok::kw_x86_fastcallcc: CC = CallingConv::X86_FastCall; break; | |||
1826 | case lltok::kw_x86_regcallcc: CC = CallingConv::X86_RegCall; break; | |||
1827 | case lltok::kw_x86_thiscallcc: CC = CallingConv::X86_ThisCall; break; | |||
1828 | case lltok::kw_x86_vectorcallcc:CC = CallingConv::X86_VectorCall; break; | |||
1829 | case lltok::kw_arm_apcscc: CC = CallingConv::ARM_APCS; break; | |||
1830 | case lltok::kw_arm_aapcscc: CC = CallingConv::ARM_AAPCS; break; | |||
1831 | case lltok::kw_arm_aapcs_vfpcc:CC = CallingConv::ARM_AAPCS_VFP; break; | |||
1832 | case lltok::kw_aarch64_vector_pcs:CC = CallingConv::AArch64_VectorCall; break; | |||
1833 | case lltok::kw_aarch64_sve_vector_pcs: | |||
1834 | CC = CallingConv::AArch64_SVE_VectorCall; | |||
1835 | break; | |||
1836 | case lltok::kw_msp430_intrcc: CC = CallingConv::MSP430_INTR; break; | |||
1837 | case lltok::kw_avr_intrcc: CC = CallingConv::AVR_INTR; break; | |||
1838 | case lltok::kw_avr_signalcc: CC = CallingConv::AVR_SIGNAL; break; | |||
1839 | case lltok::kw_ptx_kernel: CC = CallingConv::PTX_Kernel; break; | |||
1840 | case lltok::kw_ptx_device: CC = CallingConv::PTX_Device; break; | |||
1841 | case lltok::kw_spir_kernel: CC = CallingConv::SPIR_KERNEL; break; | |||
1842 | case lltok::kw_spir_func: CC = CallingConv::SPIR_FUNC; break; | |||
1843 | case lltok::kw_intel_ocl_bicc: CC = CallingConv::Intel_OCL_BI; break; | |||
1844 | case lltok::kw_x86_64_sysvcc: CC = CallingConv::X86_64_SysV; break; | |||
1845 | case lltok::kw_win64cc: CC = CallingConv::Win64; break; | |||
1846 | case lltok::kw_webkit_jscc: CC = CallingConv::WebKit_JS; break; | |||
1847 | case lltok::kw_anyregcc: CC = CallingConv::AnyReg; break; | |||
1848 | case lltok::kw_preserve_mostcc:CC = CallingConv::PreserveMost; break; | |||
1849 | case lltok::kw_preserve_allcc: CC = CallingConv::PreserveAll; break; | |||
1850 | case lltok::kw_ghccc: CC = CallingConv::GHC; break; | |||
1851 | case lltok::kw_swiftcc: CC = CallingConv::Swift; break; | |||
1852 | case lltok::kw_swifttailcc: CC = CallingConv::SwiftTail; break; | |||
1853 | case lltok::kw_x86_intrcc: CC = CallingConv::X86_INTR; break; | |||
1854 | case lltok::kw_hhvmcc: CC = CallingConv::HHVM; break; | |||
1855 | case lltok::kw_hhvm_ccc: CC = CallingConv::HHVM_C; break; | |||
1856 | case lltok::kw_cxx_fast_tlscc: CC = CallingConv::CXX_FAST_TLS; break; | |||
1857 | case lltok::kw_amdgpu_vs: CC = CallingConv::AMDGPU_VS; break; | |||
1858 | case lltok::kw_amdgpu_gfx: CC = CallingConv::AMDGPU_Gfx; break; | |||
1859 | case lltok::kw_amdgpu_ls: CC = CallingConv::AMDGPU_LS; break; | |||
1860 | case lltok::kw_amdgpu_hs: CC = CallingConv::AMDGPU_HS; break; | |||
1861 | case lltok::kw_amdgpu_es: CC = CallingConv::AMDGPU_ES; break; | |||
1862 | case lltok::kw_amdgpu_gs: CC = CallingConv::AMDGPU_GS; break; | |||
1863 | case lltok::kw_amdgpu_ps: CC = CallingConv::AMDGPU_PS; break; | |||
1864 | case lltok::kw_amdgpu_cs: CC = CallingConv::AMDGPU_CS; break; | |||
1865 | case lltok::kw_amdgpu_kernel: CC = CallingConv::AMDGPU_KERNEL; break; | |||
1866 | case lltok::kw_tailcc: CC = CallingConv::Tail; break; | |||
1867 | case lltok::kw_cc: { | |||
1868 | Lex.Lex(); | |||
1869 | return parseUInt32(CC); | |||
1870 | } | |||
1871 | } | |||
1872 | ||||
1873 | Lex.Lex(); | |||
1874 | return false; | |||
1875 | } | |||
1876 | ||||
1877 | /// parseMetadataAttachment | |||
1878 | /// ::= !dbg !42 | |||
1879 | bool LLParser::parseMetadataAttachment(unsigned &Kind, MDNode *&MD) { | |||
1880 | assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata attachment")((void)0); | |||
1881 | ||||
1882 | std::string Name = Lex.getStrVal(); | |||
1883 | Kind = M->getMDKindID(Name); | |||
1884 | Lex.Lex(); | |||
1885 | ||||
1886 | return parseMDNode(MD); | |||
1887 | } | |||
1888 | ||||
1889 | /// parseInstructionMetadata | |||
1890 | /// ::= !dbg !42 (',' !dbg !57)* | |||
1891 | bool LLParser::parseInstructionMetadata(Instruction &Inst) { | |||
1892 | do { | |||
1893 | if (Lex.getKind() != lltok::MetadataVar) | |||
1894 | return tokError("expected metadata after comma"); | |||
1895 | ||||
1896 | unsigned MDK; | |||
1897 | MDNode *N; | |||
1898 | if (parseMetadataAttachment(MDK, N)) | |||
1899 | return true; | |||
1900 | ||||
1901 | Inst.setMetadata(MDK, N); | |||
1902 | if (MDK == LLVMContext::MD_tbaa) | |||
1903 | InstsWithTBAATag.push_back(&Inst); | |||
1904 | ||||
1905 | // If this is the end of the list, we're done. | |||
1906 | } while (EatIfPresent(lltok::comma)); | |||
1907 | return false; | |||
1908 | } | |||
1909 | ||||
1910 | /// parseGlobalObjectMetadataAttachment | |||
1911 | /// ::= !dbg !57 | |||
1912 | bool LLParser::parseGlobalObjectMetadataAttachment(GlobalObject &GO) { | |||
1913 | unsigned MDK; | |||
1914 | MDNode *N; | |||
1915 | if (parseMetadataAttachment(MDK, N)) | |||
1916 | return true; | |||
1917 | ||||
1918 | GO.addMetadata(MDK, *N); | |||
1919 | return false; | |||
1920 | } | |||
1921 | ||||
1922 | /// parseOptionalFunctionMetadata | |||
1923 | /// ::= (!dbg !57)* | |||
1924 | bool LLParser::parseOptionalFunctionMetadata(Function &F) { | |||
1925 | while (Lex.getKind() == lltok::MetadataVar) | |||
1926 | if (parseGlobalObjectMetadataAttachment(F)) | |||
1927 | return true; | |||
1928 | return false; | |||
1929 | } | |||
1930 | ||||
1931 | /// parseOptionalAlignment | |||
1932 | /// ::= /* empty */ | |||
1933 | /// ::= 'align' 4 | |||
1934 | bool LLParser::parseOptionalAlignment(MaybeAlign &Alignment, bool AllowParens) { | |||
1935 | Alignment = None; | |||
1936 | if (!EatIfPresent(lltok::kw_align)) | |||
1937 | return false; | |||
1938 | LocTy AlignLoc = Lex.getLoc(); | |||
1939 | uint32_t Value = 0; | |||
1940 | ||||
1941 | LocTy ParenLoc = Lex.getLoc(); | |||
1942 | bool HaveParens = false; | |||
1943 | if (AllowParens) { | |||
1944 | if (EatIfPresent(lltok::lparen)) | |||
1945 | HaveParens = true; | |||
1946 | } | |||
1947 | ||||
1948 | if (parseUInt32(Value)) | |||
1949 | return true; | |||
1950 | ||||
1951 | if (HaveParens && !EatIfPresent(lltok::rparen)) | |||
1952 | return error(ParenLoc, "expected ')'"); | |||
1953 | ||||
1954 | if (!isPowerOf2_32(Value)) | |||
1955 | return error(AlignLoc, "alignment is not a power of two"); | |||
1956 | if (Value > Value::MaximumAlignment) | |||
1957 | return error(AlignLoc, "huge alignments are not supported yet"); | |||
1958 | Alignment = Align(Value); | |||
1959 | return false; | |||
1960 | } | |||
1961 | ||||
1962 | /// parseOptionalDerefAttrBytes | |||
1963 | /// ::= /* empty */ | |||
1964 | /// ::= AttrKind '(' 4 ')' | |||
1965 | /// | |||
1966 | /// where AttrKind is either 'dereferenceable' or 'dereferenceable_or_null'. | |||
1967 | bool LLParser::parseOptionalDerefAttrBytes(lltok::Kind AttrKind, | |||
1968 | uint64_t &Bytes) { | |||
1969 | assert((AttrKind == lltok::kw_dereferenceable ||((void)0) | |||
1970 | AttrKind == lltok::kw_dereferenceable_or_null) &&((void)0) | |||
1971 | "contract!")((void)0); | |||
1972 | ||||
1973 | Bytes = 0; | |||
1974 | if (!EatIfPresent(AttrKind)) | |||
1975 | return false; | |||
1976 | LocTy ParenLoc = Lex.getLoc(); | |||
1977 | if (!EatIfPresent(lltok::lparen)) | |||
1978 | return error(ParenLoc, "expected '('"); | |||
1979 | LocTy DerefLoc = Lex.getLoc(); | |||
1980 | if (parseUInt64(Bytes)) | |||
1981 | return true; | |||
1982 | ParenLoc = Lex.getLoc(); | |||
1983 | if (!EatIfPresent(lltok::rparen)) | |||
1984 | return error(ParenLoc, "expected ')'"); | |||
1985 | if (!Bytes) | |||
1986 | return error(DerefLoc, "dereferenceable bytes must be non-zero"); | |||
1987 | return false; | |||
1988 | } | |||
1989 | ||||
1990 | /// parseOptionalCommaAlign | |||
1991 | /// ::= | |||
1992 | /// ::= ',' align 4 | |||
1993 | /// | |||
1994 | /// This returns with AteExtraComma set to true if it ate an excess comma at the | |||
1995 | /// end. | |||
1996 | bool LLParser::parseOptionalCommaAlign(MaybeAlign &Alignment, | |||
1997 | bool &AteExtraComma) { | |||
1998 | AteExtraComma = false; | |||
1999 | while (EatIfPresent(lltok::comma)) { | |||
2000 | // Metadata at the end is an early exit. | |||
2001 | if (Lex.getKind() == lltok::MetadataVar) { | |||
2002 | AteExtraComma = true; | |||
2003 | return false; | |||
2004 | } | |||
2005 | ||||
2006 | if (Lex.getKind() != lltok::kw_align) | |||
2007 | return error(Lex.getLoc(), "expected metadata or 'align'"); | |||
2008 | ||||
2009 | if (parseOptionalAlignment(Alignment)) | |||
2010 | return true; | |||
2011 | } | |||
2012 | ||||
2013 | return false; | |||
2014 | } | |||
2015 | ||||
2016 | /// parseOptionalCommaAddrSpace | |||
2017 | /// ::= | |||
2018 | /// ::= ',' addrspace(1) | |||
2019 | /// | |||
2020 | /// This returns with AteExtraComma set to true if it ate an excess comma at the | |||
2021 | /// end. | |||
2022 | bool LLParser::parseOptionalCommaAddrSpace(unsigned &AddrSpace, LocTy &Loc, | |||
2023 | bool &AteExtraComma) { | |||
2024 | AteExtraComma = false; | |||
2025 | while (EatIfPresent(lltok::comma)) { | |||
2026 | // Metadata at the end is an early exit. | |||
2027 | if (Lex.getKind() == lltok::MetadataVar) { | |||
2028 | AteExtraComma = true; | |||
2029 | return false; | |||
2030 | } | |||
2031 | ||||
2032 | Loc = Lex.getLoc(); | |||
2033 | if (Lex.getKind() != lltok::kw_addrspace) | |||
2034 | return error(Lex.getLoc(), "expected metadata or 'addrspace'"); | |||
2035 | ||||
2036 | if (parseOptionalAddrSpace(AddrSpace)) | |||
2037 | return true; | |||
2038 | } | |||
2039 | ||||
2040 | return false; | |||
2041 | } | |||
2042 | ||||
2043 | bool LLParser::parseAllocSizeArguments(unsigned &BaseSizeArg, | |||
2044 | Optional<unsigned> &HowManyArg) { | |||
2045 | Lex.Lex(); | |||
2046 | ||||
2047 | auto StartParen = Lex.getLoc(); | |||
2048 | if (!EatIfPresent(lltok::lparen)) | |||
2049 | return error(StartParen, "expected '('"); | |||
2050 | ||||
2051 | if (parseUInt32(BaseSizeArg)) | |||
2052 | return true; | |||
2053 | ||||
2054 | if (EatIfPresent(lltok::comma)) { | |||
2055 | auto HowManyAt = Lex.getLoc(); | |||
2056 | unsigned HowMany; | |||
2057 | if (parseUInt32(HowMany)) | |||
2058 | return true; | |||
2059 | if (HowMany == BaseSizeArg) | |||
2060 | return error(HowManyAt, | |||
2061 | "'allocsize' indices can't refer to the same parameter"); | |||
2062 | HowManyArg = HowMany; | |||
2063 | } else | |||
2064 | HowManyArg = None; | |||
2065 | ||||
2066 | auto EndParen = Lex.getLoc(); | |||
2067 | if (!EatIfPresent(lltok::rparen)) | |||
2068 | return error(EndParen, "expected ')'"); | |||
2069 | return false; | |||
2070 | } | |||
2071 | ||||
2072 | bool LLParser::parseVScaleRangeArguments(unsigned &MinValue, | |||
2073 | unsigned &MaxValue) { | |||
2074 | Lex.Lex(); | |||
2075 | ||||
2076 | auto StartParen = Lex.getLoc(); | |||
2077 | if (!EatIfPresent(lltok::lparen)) | |||
2078 | return error(StartParen, "expected '('"); | |||
2079 | ||||
2080 | if (parseUInt32(MinValue)) | |||
2081 | return true; | |||
2082 | ||||
2083 | if (EatIfPresent(lltok::comma)) { | |||
2084 | if (parseUInt32(MaxValue)) | |||
2085 | return true; | |||
2086 | } else | |||
2087 | MaxValue = MinValue; | |||
2088 | ||||
2089 | auto EndParen = Lex.getLoc(); | |||
2090 | if (!EatIfPresent(lltok::rparen)) | |||
2091 | return error(EndParen, "expected ')'"); | |||
2092 | return false; | |||
2093 | } | |||
2094 | ||||
2095 | /// parseScopeAndOrdering | |||
2096 | /// if isAtomic: ::= SyncScope? AtomicOrdering | |||
2097 | /// else: ::= | |||
2098 | /// | |||
2099 | /// This sets Scope and Ordering to the parsed values. | |||
2100 | bool LLParser::parseScopeAndOrdering(bool IsAtomic, SyncScope::ID &SSID, | |||
2101 | AtomicOrdering &Ordering) { | |||
2102 | if (!IsAtomic) | |||
2103 | return false; | |||
2104 | ||||
2105 | return parseScope(SSID) || parseOrdering(Ordering); | |||
2106 | } | |||
2107 | ||||
2108 | /// parseScope | |||
2109 | /// ::= syncscope("singlethread" | "<target scope>")? | |||
2110 | /// | |||
2111 | /// This sets synchronization scope ID to the ID of the parsed value. | |||
2112 | bool LLParser::parseScope(SyncScope::ID &SSID) { | |||
2113 | SSID = SyncScope::System; | |||
2114 | if (EatIfPresent(lltok::kw_syncscope)) { | |||
2115 | auto StartParenAt = Lex.getLoc(); | |||
2116 | if (!EatIfPresent(lltok::lparen)) | |||
2117 | return error(StartParenAt, "Expected '(' in syncscope"); | |||
2118 | ||||
2119 | std::string SSN; | |||
2120 | auto SSNAt = Lex.getLoc(); | |||
2121 | if (parseStringConstant(SSN)) | |||
2122 | return error(SSNAt, "Expected synchronization scope name"); | |||
2123 | ||||
2124 | auto EndParenAt = Lex.getLoc(); | |||
2125 | if (!EatIfPresent(lltok::rparen)) | |||
2126 | return error(EndParenAt, "Expected ')' in syncscope"); | |||
2127 | ||||
2128 | SSID = Context.getOrInsertSyncScopeID(SSN); | |||
2129 | } | |||
2130 | ||||
2131 | return false; | |||
2132 | } | |||
2133 | ||||
2134 | /// parseOrdering | |||
2135 | /// ::= AtomicOrdering | |||
2136 | /// | |||
2137 | /// This sets Ordering to the parsed value. | |||
2138 | bool LLParser::parseOrdering(AtomicOrdering &Ordering) { | |||
2139 | switch (Lex.getKind()) { | |||
2140 | default: | |||
2141 | return tokError("Expected ordering on atomic instruction"); | |||
2142 | case lltok::kw_unordered: Ordering = AtomicOrdering::Unordered; break; | |||
2143 | case lltok::kw_monotonic: Ordering = AtomicOrdering::Monotonic; break; | |||
2144 | // Not specified yet: | |||
2145 | // case lltok::kw_consume: Ordering = AtomicOrdering::Consume; break; | |||
2146 | case lltok::kw_acquire: Ordering = AtomicOrdering::Acquire; break; | |||
2147 | case lltok::kw_release: Ordering = AtomicOrdering::Release; break; | |||
2148 | case lltok::kw_acq_rel: Ordering = AtomicOrdering::AcquireRelease; break; | |||
2149 | case lltok::kw_seq_cst: | |||
2150 | Ordering = AtomicOrdering::SequentiallyConsistent; | |||
2151 | break; | |||
2152 | } | |||
2153 | Lex.Lex(); | |||
2154 | return false; | |||
2155 | } | |||
2156 | ||||
2157 | /// parseOptionalStackAlignment | |||
2158 | /// ::= /* empty */ | |||
2159 | /// ::= 'alignstack' '(' 4 ')' | |||
2160 | bool LLParser::parseOptionalStackAlignment(unsigned &Alignment) { | |||
2161 | Alignment = 0; | |||
2162 | if (!EatIfPresent(lltok::kw_alignstack)) | |||
2163 | return false; | |||
2164 | LocTy ParenLoc = Lex.getLoc(); | |||
2165 | if (!EatIfPresent(lltok::lparen)) | |||
2166 | return error(ParenLoc, "expected '('"); | |||
2167 | LocTy AlignLoc = Lex.getLoc(); | |||
2168 | if (parseUInt32(Alignment)) | |||
2169 | return true; | |||
2170 | ParenLoc = Lex.getLoc(); | |||
2171 | if (!EatIfPresent(lltok::rparen)) | |||
2172 | return error(ParenLoc, "expected ')'"); | |||
2173 | if (!isPowerOf2_32(Alignment)) | |||
2174 | return error(AlignLoc, "stack alignment is not a power of two"); | |||
2175 | return false; | |||
2176 | } | |||
2177 | ||||
2178 | /// parseIndexList - This parses the index list for an insert/extractvalue | |||
2179 | /// instruction. This sets AteExtraComma in the case where we eat an extra | |||
2180 | /// comma at the end of the line and find that it is followed by metadata. | |||
2181 | /// Clients that don't allow metadata can call the version of this function that | |||
2182 | /// only takes one argument. | |||
2183 | /// | |||
2184 | /// parseIndexList | |||
2185 | /// ::= (',' uint32)+ | |||
2186 | /// | |||
2187 | bool LLParser::parseIndexList(SmallVectorImpl<unsigned> &Indices, | |||
2188 | bool &AteExtraComma) { | |||
2189 | AteExtraComma = false; | |||
2190 | ||||
2191 | if (Lex.getKind() != lltok::comma) | |||
2192 | return tokError("expected ',' as start of index list"); | |||
2193 | ||||
2194 | while (EatIfPresent(lltok::comma)) { | |||
2195 | if (Lex.getKind() == lltok::MetadataVar) { | |||
2196 | if (Indices.empty()) | |||
2197 | return tokError("expected index"); | |||
2198 | AteExtraComma = true; | |||
2199 | return false; | |||
2200 | } | |||
2201 | unsigned Idx = 0; | |||
2202 | if (parseUInt32(Idx)) | |||
2203 | return true; | |||
2204 | Indices.push_back(Idx); | |||
2205 | } | |||
2206 | ||||
2207 | return false; | |||
2208 | } | |||
2209 | ||||
2210 | //===----------------------------------------------------------------------===// | |||
2211 | // Type Parsing. | |||
2212 | //===----------------------------------------------------------------------===// | |||
2213 | ||||
2214 | /// parseType - parse a type. | |||
2215 | bool LLParser::parseType(Type *&Result, const Twine &Msg, bool AllowVoid) { | |||
2216 | SMLoc TypeLoc = Lex.getLoc(); | |||
2217 | switch (Lex.getKind()) { | |||
2218 | default: | |||
2219 | return tokError(Msg); | |||
2220 | case lltok::Type: | |||
2221 | // Type ::= 'float' | 'void' (etc) | |||
2222 | Result = Lex.getTyVal(); | |||
2223 | Lex.Lex(); | |||
2224 | break; | |||
2225 | case lltok::lbrace: | |||
2226 | // Type ::= StructType | |||
2227 | if (parseAnonStructType(Result, false)) | |||
2228 | return true; | |||
2229 | break; | |||
2230 | case lltok::lsquare: | |||
2231 | // Type ::= '[' ... ']' | |||
2232 | Lex.Lex(); // eat the lsquare. | |||
2233 | if (parseArrayVectorType(Result, false)) | |||
2234 | return true; | |||
2235 | break; | |||
2236 | case lltok::less: // Either vector or packed struct. | |||
2237 | // Type ::= '<' ... '>' | |||
2238 | Lex.Lex(); | |||
2239 | if (Lex.getKind() == lltok::lbrace) { | |||
2240 | if (parseAnonStructType(Result, true) || | |||
2241 | parseToken(lltok::greater, "expected '>' at end of packed struct")) | |||
2242 | return true; | |||
2243 | } else if (parseArrayVectorType(Result, true)) | |||
2244 | return true; | |||
2245 | break; | |||
2246 | case lltok::LocalVar: { | |||
2247 | // Type ::= %foo | |||
2248 | std::pair<Type*, LocTy> &Entry = NamedTypes[Lex.getStrVal()]; | |||
2249 | ||||
2250 | // If the type hasn't been defined yet, create a forward definition and | |||
2251 | // remember where that forward def'n was seen (in case it never is defined). | |||
2252 | if (!Entry.first) { | |||
2253 | Entry.first = StructType::create(Context, Lex.getStrVal()); | |||
2254 | Entry.second = Lex.getLoc(); | |||
2255 | } | |||
2256 | Result = Entry.first; | |||
2257 | Lex.Lex(); | |||
2258 | break; | |||
2259 | } | |||
2260 | ||||
2261 | case lltok::LocalVarID: { | |||
2262 | // Type ::= %4 | |||
2263 | std::pair<Type*, LocTy> &Entry = NumberedTypes[Lex.getUIntVal()]; | |||
2264 | ||||
2265 | // If the type hasn't been defined yet, create a forward definition and | |||
2266 | // remember where that forward def'n was seen (in case it never is defined). | |||
2267 | if (!Entry.first) { | |||
2268 | Entry.first = StructType::create(Context); | |||
2269 | Entry.second = Lex.getLoc(); | |||
2270 | } | |||
2271 | Result = Entry.first; | |||
2272 | Lex.Lex(); | |||
2273 | break; | |||
2274 | } | |||
2275 | } | |||
2276 | ||||
2277 | // Handle (explicit) opaque pointer types (not --force-opaque-pointers). | |||
2278 | // | |||
2279 | // Type ::= ptr ('addrspace' '(' uint32 ')')? | |||
2280 | if (Result->isOpaquePointerTy()) { | |||
2281 | unsigned AddrSpace; | |||
2282 | if (parseOptionalAddrSpace(AddrSpace)) | |||
2283 | return true; | |||
2284 | Result = PointerType::get(getContext(), AddrSpace); | |||
2285 | ||||
2286 | // Give a nice error for 'ptr*'. | |||
2287 | if (Lex.getKind() == lltok::star) | |||
2288 | return tokError("ptr* is invalid - use ptr instead"); | |||
2289 | ||||
2290 | // Fall through to parsing the type suffixes only if this 'ptr' is a | |||
2291 | // function return. Otherwise, return success, implicitly rejecting other | |||
2292 | // suffixes. | |||
2293 | if (Lex.getKind() != lltok::lparen) | |||
2294 | return false; | |||
2295 | } | |||
2296 | ||||
2297 | // parse the type suffixes. | |||
2298 | while (true) { | |||
2299 | switch (Lex.getKind()) { | |||
2300 | // End of type. | |||
2301 | default: | |||
2302 | if (!AllowVoid && Result->isVoidTy()) | |||
2303 | return error(TypeLoc, "void type only allowed for function results"); | |||
2304 | return false; | |||
2305 | ||||
2306 | // Type ::= Type '*' | |||
2307 | case lltok::star: | |||
2308 | if (Result->isLabelTy()) | |||
2309 | return tokError("basic block pointers are invalid"); | |||
2310 | if (Result->isVoidTy()) | |||
2311 | return tokError("pointers to void are invalid - use i8* instead"); | |||
2312 | if (!PointerType::isValidElementType(Result)) | |||
2313 | return tokError("pointer to this type is invalid"); | |||
2314 | Result = PointerType::getUnqual(Result); | |||
2315 | Lex.Lex(); | |||
2316 | break; | |||
2317 | ||||
2318 | // Type ::= Type 'addrspace' '(' uint32 ')' '*' | |||
2319 | case lltok::kw_addrspace: { | |||
2320 | if (Result->isLabelTy()) | |||
2321 | return tokError("basic block pointers are invalid"); | |||
2322 | if (Result->isVoidTy()) | |||
2323 | return tokError("pointers to void are invalid; use i8* instead"); | |||
2324 | if (!PointerType::isValidElementType(Result)) | |||
2325 | return tokError("pointer to this type is invalid"); | |||
2326 | unsigned AddrSpace; | |||
2327 | if (parseOptionalAddrSpace(AddrSpace) || | |||
2328 | parseToken(lltok::star, "expected '*' in address space")) | |||
2329 | return true; | |||
2330 | ||||
2331 | Result = PointerType::get(Result, AddrSpace); | |||
2332 | break; | |||
2333 | } | |||
2334 | ||||
2335 | /// Types '(' ArgTypeListI ')' OptFuncAttrs | |||
2336 | case lltok::lparen: | |||
2337 | if (parseFunctionType(Result)) | |||
2338 | return true; | |||
2339 | break; | |||
2340 | } | |||
2341 | } | |||
2342 | } | |||
2343 | ||||
2344 | /// parseParameterList | |||
2345 | /// ::= '(' ')' | |||
2346 | /// ::= '(' Arg (',' Arg)* ')' | |||
2347 | /// Arg | |||
2348 | /// ::= Type OptionalAttributes Value OptionalAttributes | |||
2349 | bool LLParser::parseParameterList(SmallVectorImpl<ParamInfo> &ArgList, | |||
2350 | PerFunctionState &PFS, bool IsMustTailCall, | |||
2351 | bool InVarArgsFunc) { | |||
2352 | if (parseToken(lltok::lparen, "expected '(' in call")) | |||
2353 | return true; | |||
2354 | ||||
2355 | while (Lex.getKind() != lltok::rparen) { | |||
2356 | // If this isn't the first argument, we need a comma. | |||
2357 | if (!ArgList.empty() && | |||
2358 | parseToken(lltok::comma, "expected ',' in argument list")) | |||
2359 | return true; | |||
2360 | ||||
2361 | // parse an ellipsis if this is a musttail call in a variadic function. | |||
2362 | if (Lex.getKind() == lltok::dotdotdot) { | |||
2363 | const char *Msg = "unexpected ellipsis in argument list for "; | |||
2364 | if (!IsMustTailCall) | |||
2365 | return tokError(Twine(Msg) + "non-musttail call"); | |||
2366 | if (!InVarArgsFunc) | |||
2367 | return tokError(Twine(Msg) + "musttail call in non-varargs function"); | |||
2368 | Lex.Lex(); // Lex the '...', it is purely for readability. | |||
2369 | return parseToken(lltok::rparen, "expected ')' at end of argument list"); | |||
2370 | } | |||
2371 | ||||
2372 | // parse the argument. | |||
2373 | LocTy ArgLoc; | |||
2374 | Type *ArgTy = nullptr; | |||
2375 | AttrBuilder ArgAttrs; | |||
2376 | Value *V; | |||
2377 | if (parseType(ArgTy, ArgLoc)) | |||
2378 | return true; | |||
2379 | ||||
2380 | if (ArgTy->isMetadataTy()) { | |||
2381 | if (parseMetadataAsValue(V, PFS)) | |||
2382 | return true; | |||
2383 | } else { | |||
2384 | // Otherwise, handle normal operands. | |||
2385 | if (parseOptionalParamAttrs(ArgAttrs) || parseValue(ArgTy, V, PFS)) | |||
2386 | return true; | |||
2387 | } | |||
2388 | ArgList.push_back(ParamInfo( | |||
2389 | ArgLoc, V, AttributeSet::get(V->getContext(), ArgAttrs))); | |||
2390 | } | |||
2391 | ||||
2392 | if (IsMustTailCall && InVarArgsFunc) | |||
2393 | return tokError("expected '...' at end of argument list for musttail call " | |||
2394 | "in varargs function"); | |||
2395 | ||||
2396 | Lex.Lex(); // Lex the ')'. | |||
2397 | return false; | |||
2398 | } | |||
2399 | ||||
2400 | /// parseRequiredTypeAttr | |||
2401 | /// ::= attrname(<ty>) | |||
2402 | bool LLParser::parseRequiredTypeAttr(AttrBuilder &B, lltok::Kind AttrToken, | |||
2403 | Attribute::AttrKind AttrKind) { | |||
2404 | Type *Ty = nullptr; | |||
2405 | if (!EatIfPresent(AttrToken)) | |||
2406 | return true; | |||
2407 | if (!EatIfPresent(lltok::lparen)) | |||
2408 | return error(Lex.getLoc(), "expected '('"); | |||
2409 | if (parseType(Ty)) | |||
2410 | return true; | |||
2411 | if (!EatIfPresent(lltok::rparen)) | |||
2412 | return error(Lex.getLoc(), "expected ')'"); | |||
2413 | ||||
2414 | B.addTypeAttr(AttrKind, Ty); | |||
2415 | return false; | |||
2416 | } | |||
2417 | ||||
2418 | /// parseOptionalOperandBundles | |||
2419 | /// ::= /*empty*/ | |||
2420 | /// ::= '[' OperandBundle [, OperandBundle ]* ']' | |||
2421 | /// | |||
2422 | /// OperandBundle | |||
2423 | /// ::= bundle-tag '(' ')' | |||
2424 | /// ::= bundle-tag '(' Type Value [, Type Value ]* ')' | |||
2425 | /// | |||
2426 | /// bundle-tag ::= String Constant | |||
2427 | bool LLParser::parseOptionalOperandBundles( | |||
2428 | SmallVectorImpl<OperandBundleDef> &BundleList, PerFunctionState &PFS) { | |||
2429 | LocTy BeginLoc = Lex.getLoc(); | |||
2430 | if (!EatIfPresent(lltok::lsquare)) | |||
2431 | return false; | |||
2432 | ||||
2433 | while (Lex.getKind() != lltok::rsquare) { | |||
2434 | // If this isn't the first operand bundle, we need a comma. | |||
2435 | if (!BundleList.empty() && | |||
2436 | parseToken(lltok::comma, "expected ',' in input list")) | |||
2437 | return true; | |||
2438 | ||||
2439 | std::string Tag; | |||
2440 | if (parseStringConstant(Tag)) | |||
2441 | return true; | |||
2442 | ||||
2443 | if (parseToken(lltok::lparen, "expected '(' in operand bundle")) | |||
2444 | return true; | |||
2445 | ||||
2446 | std::vector<Value *> Inputs; | |||
2447 | while (Lex.getKind() != lltok::rparen) { | |||
2448 | // If this isn't the first input, we need a comma. | |||
2449 | if (!Inputs.empty() && | |||
2450 | parseToken(lltok::comma, "expected ',' in input list")) | |||
2451 | return true; | |||
2452 | ||||
2453 | Type *Ty = nullptr; | |||
2454 | Value *Input = nullptr; | |||
2455 | if (parseType(Ty) || parseValue(Ty, Input, PFS)) | |||
2456 | return true; | |||
2457 | Inputs.push_back(Input); | |||
2458 | } | |||
2459 | ||||
2460 | BundleList.emplace_back(std::move(Tag), std::move(Inputs)); | |||
2461 | ||||
2462 | Lex.Lex(); // Lex the ')'. | |||
2463 | } | |||
2464 | ||||
2465 | if (BundleList.empty()) | |||
2466 | return error(BeginLoc, "operand bundle set must not be empty"); | |||
2467 | ||||
2468 | Lex.Lex(); // Lex the ']'. | |||
2469 | return false; | |||
2470 | } | |||
2471 | ||||
2472 | /// parseArgumentList - parse the argument list for a function type or function | |||
2473 | /// prototype. | |||
2474 | /// ::= '(' ArgTypeListI ')' | |||
2475 | /// ArgTypeListI | |||
2476 | /// ::= /*empty*/ | |||
2477 | /// ::= '...' | |||
2478 | /// ::= ArgTypeList ',' '...' | |||
2479 | /// ::= ArgType (',' ArgType)* | |||
2480 | /// | |||
2481 | bool LLParser::parseArgumentList(SmallVectorImpl<ArgInfo> &ArgList, | |||
2482 | bool &IsVarArg) { | |||
2483 | unsigned CurValID = 0; | |||
2484 | IsVarArg = false; | |||
2485 | assert(Lex.getKind() == lltok::lparen)((void)0); | |||
2486 | Lex.Lex(); // eat the (. | |||
2487 | ||||
2488 | if (Lex.getKind() == lltok::rparen) { | |||
2489 | // empty | |||
2490 | } else if (Lex.getKind() == lltok::dotdotdot) { | |||
2491 | IsVarArg = true; | |||
2492 | Lex.Lex(); | |||
2493 | } else { | |||
2494 | LocTy TypeLoc = Lex.getLoc(); | |||
2495 | Type *ArgTy = nullptr; | |||
2496 | AttrBuilder Attrs; | |||
2497 | std::string Name; | |||
2498 | ||||
2499 | if (parseType(ArgTy) || parseOptionalParamAttrs(Attrs)) | |||
2500 | return true; | |||
2501 | ||||
2502 | if (ArgTy->isVoidTy()) | |||
2503 | return error(TypeLoc, "argument can not have void type"); | |||
2504 | ||||
2505 | if (Lex.getKind() == lltok::LocalVar) { | |||
2506 | Name = Lex.getStrVal(); | |||
2507 | Lex.Lex(); | |||
2508 | } else if (Lex.getKind() == lltok::LocalVarID) { | |||
2509 | if (Lex.getUIntVal() != CurValID) | |||
2510 | return error(TypeLoc, "argument expected to be numbered '%" + | |||
2511 | Twine(CurValID) + "'"); | |||
2512 | ++CurValID; | |||
2513 | Lex.Lex(); | |||
2514 | } | |||
2515 | ||||
2516 | if (!FunctionType::isValidArgumentType(ArgTy)) | |||
2517 | return error(TypeLoc, "invalid type for function argument"); | |||
2518 | ||||
2519 | ArgList.emplace_back(TypeLoc, ArgTy, | |||
2520 | AttributeSet::get(ArgTy->getContext(), Attrs), | |||
2521 | std::move(Name)); | |||
2522 | ||||
2523 | while (EatIfPresent(lltok::comma)) { | |||
2524 | // Handle ... at end of arg list. | |||
2525 | if (EatIfPresent(lltok::dotdotdot)) { | |||
2526 | IsVarArg = true; | |||
2527 | break; | |||
2528 | } | |||
2529 | ||||
2530 | // Otherwise must be an argument type. | |||
2531 | TypeLoc = Lex.getLoc(); | |||
2532 | if (parseType(ArgTy) || parseOptionalParamAttrs(Attrs)) | |||
2533 | return true; | |||
2534 | ||||
2535 | if (ArgTy->isVoidTy()) | |||
2536 | return error(TypeLoc, "argument can not have void type"); | |||
2537 | ||||
2538 | if (Lex.getKind() == lltok::LocalVar) { | |||
2539 | Name = Lex.getStrVal(); | |||
2540 | Lex.Lex(); | |||
2541 | } else { | |||
2542 | if (Lex.getKind() == lltok::LocalVarID) { | |||
2543 | if (Lex.getUIntVal() != CurValID) | |||
2544 | return error(TypeLoc, "argument expected to be numbered '%" + | |||
2545 | Twine(CurValID) + "'"); | |||
2546 | Lex.Lex(); | |||
2547 | } | |||
2548 | ++CurValID; | |||
2549 | Name = ""; | |||
2550 | } | |||
2551 | ||||
2552 | if (!ArgTy->isFirstClassType()) | |||
2553 | return error(TypeLoc, "invalid type for function argument"); | |||
2554 | ||||
2555 | ArgList.emplace_back(TypeLoc, ArgTy, | |||
2556 | AttributeSet::get(ArgTy->getContext(), Attrs), | |||
2557 | std::move(Name)); | |||
2558 | } | |||
2559 | } | |||
2560 | ||||
2561 | return parseToken(lltok::rparen, "expected ')' at end of argument list"); | |||
2562 | } | |||
2563 | ||||
2564 | /// parseFunctionType | |||
2565 | /// ::= Type ArgumentList OptionalAttrs | |||
2566 | bool LLParser::parseFunctionType(Type *&Result) { | |||
2567 | assert(Lex.getKind() == lltok::lparen)((void)0); | |||
2568 | ||||
2569 | if (!FunctionType::isValidReturnType(Result)) | |||
2570 | return tokError("invalid function return type"); | |||
2571 | ||||
2572 | SmallVector<ArgInfo, 8> ArgList; | |||
2573 | bool IsVarArg; | |||
2574 | if (parseArgumentList(ArgList, IsVarArg)) | |||
2575 | return true; | |||
2576 | ||||
2577 | // Reject names on the arguments lists. | |||
2578 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i) { | |||
2579 | if (!ArgList[i].Name.empty()) | |||
2580 | return error(ArgList[i].Loc, "argument name invalid in function type"); | |||
2581 | if (ArgList[i].Attrs.hasAttributes()) | |||
2582 | return error(ArgList[i].Loc, | |||
2583 | "argument attributes invalid in function type"); | |||
2584 | } | |||
2585 | ||||
2586 | SmallVector<Type*, 16> ArgListTy; | |||
2587 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i) | |||
2588 | ArgListTy.push_back(ArgList[i].Ty); | |||
2589 | ||||
2590 | Result = FunctionType::get(Result, ArgListTy, IsVarArg); | |||
2591 | return false; | |||
2592 | } | |||
2593 | ||||
2594 | /// parseAnonStructType - parse an anonymous struct type, which is inlined into | |||
2595 | /// other structs. | |||
2596 | bool LLParser::parseAnonStructType(Type *&Result, bool Packed) { | |||
2597 | SmallVector<Type*, 8> Elts; | |||
2598 | if (parseStructBody(Elts)) | |||
2599 | return true; | |||
2600 | ||||
2601 | Result = StructType::get(Context, Elts, Packed); | |||
2602 | return false; | |||
2603 | } | |||
2604 | ||||
2605 | /// parseStructDefinition - parse a struct in a 'type' definition. | |||
2606 | bool LLParser::parseStructDefinition(SMLoc TypeLoc, StringRef Name, | |||
2607 | std::pair<Type *, LocTy> &Entry, | |||
2608 | Type *&ResultTy) { | |||
2609 | // If the type was already defined, diagnose the redefinition. | |||
2610 | if (Entry.first && !Entry.second.isValid()) | |||
2611 | return error(TypeLoc, "redefinition of type"); | |||
2612 | ||||
2613 | // If we have opaque, just return without filling in the definition for the | |||
2614 | // struct. This counts as a definition as far as the .ll file goes. | |||
2615 | if (EatIfPresent(lltok::kw_opaque)) { | |||
2616 | // This type is being defined, so clear the location to indicate this. | |||
2617 | Entry.second = SMLoc(); | |||
2618 | ||||
2619 | // If this type number has never been uttered, create it. | |||
2620 | if (!Entry.first) | |||
2621 | Entry.first = StructType::create(Context, Name); | |||
2622 | ResultTy = Entry.first; | |||
2623 | return false; | |||
2624 | } | |||
2625 | ||||
2626 | // If the type starts with '<', then it is either a packed struct or a vector. | |||
2627 | bool isPacked = EatIfPresent(lltok::less); | |||
2628 | ||||
2629 | // If we don't have a struct, then we have a random type alias, which we | |||
2630 | // accept for compatibility with old files. These types are not allowed to be | |||
2631 | // forward referenced and not allowed to be recursive. | |||
2632 | if (Lex.getKind() != lltok::lbrace) { | |||
2633 | if (Entry.first) | |||
2634 | return error(TypeLoc, "forward references to non-struct type"); | |||
2635 | ||||
2636 | ResultTy = nullptr; | |||
2637 | if (isPacked) | |||
2638 | return parseArrayVectorType(ResultTy, true); | |||
2639 | return parseType(ResultTy); | |||
2640 | } | |||
2641 | ||||
2642 | // This type is being defined, so clear the location to indicate this. | |||
2643 | Entry.second = SMLoc(); | |||
2644 | ||||
2645 | // If this type number has never been uttered, create it. | |||
2646 | if (!Entry.first) | |||
2647 | Entry.first = StructType::create(Context, Name); | |||
2648 | ||||
2649 | StructType *STy = cast<StructType>(Entry.first); | |||
2650 | ||||
2651 | SmallVector<Type*, 8> Body; | |||
2652 | if (parseStructBody(Body) || | |||
2653 | (isPacked && parseToken(lltok::greater, "expected '>' in packed struct"))) | |||
2654 | return true; | |||
2655 | ||||
2656 | STy->setBody(Body, isPacked); | |||
2657 | ResultTy = STy; | |||
2658 | return false; | |||
2659 | } | |||
2660 | ||||
2661 | /// parseStructType: Handles packed and unpacked types. </> parsed elsewhere. | |||
2662 | /// StructType | |||
2663 | /// ::= '{' '}' | |||
2664 | /// ::= '{' Type (',' Type)* '}' | |||
2665 | /// ::= '<' '{' '}' '>' | |||
2666 | /// ::= '<' '{' Type (',' Type)* '}' '>' | |||
2667 | bool LLParser::parseStructBody(SmallVectorImpl<Type *> &Body) { | |||
2668 | assert(Lex.getKind() == lltok::lbrace)((void)0); | |||
2669 | Lex.Lex(); // Consume the '{' | |||
2670 | ||||
2671 | // Handle the empty struct. | |||
2672 | if (EatIfPresent(lltok::rbrace)) | |||
2673 | return false; | |||
2674 | ||||
2675 | LocTy EltTyLoc = Lex.getLoc(); | |||
2676 | Type *Ty = nullptr; | |||
2677 | if (parseType(Ty)) | |||
2678 | return true; | |||
2679 | Body.push_back(Ty); | |||
2680 | ||||
2681 | if (!StructType::isValidElementType(Ty)) | |||
2682 | return error(EltTyLoc, "invalid element type for struct"); | |||
2683 | ||||
2684 | while (EatIfPresent(lltok::comma)) { | |||
2685 | EltTyLoc = Lex.getLoc(); | |||
2686 | if (parseType(Ty)) | |||
2687 | return true; | |||
2688 | ||||
2689 | if (!StructType::isValidElementType(Ty)) | |||
2690 | return error(EltTyLoc, "invalid element type for struct"); | |||
2691 | ||||
2692 | Body.push_back(Ty); | |||
2693 | } | |||
2694 | ||||
2695 | return parseToken(lltok::rbrace, "expected '}' at end of struct"); | |||
2696 | } | |||
2697 | ||||
2698 | /// parseArrayVectorType - parse an array or vector type, assuming the first | |||
2699 | /// token has already been consumed. | |||
2700 | /// Type | |||
2701 | /// ::= '[' APSINTVAL 'x' Types ']' | |||
2702 | /// ::= '<' APSINTVAL 'x' Types '>' | |||
2703 | /// ::= '<' 'vscale' 'x' APSINTVAL 'x' Types '>' | |||
2704 | bool LLParser::parseArrayVectorType(Type *&Result, bool IsVector) { | |||
2705 | bool Scalable = false; | |||
2706 | ||||
2707 | if (IsVector && Lex.getKind() == lltok::kw_vscale) { | |||
2708 | Lex.Lex(); // consume the 'vscale' | |||
2709 | if (parseToken(lltok::kw_x, "expected 'x' after vscale")) | |||
2710 | return true; | |||
2711 | ||||
2712 | Scalable = true; | |||
2713 | } | |||
2714 | ||||
2715 | if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned() || | |||
2716 | Lex.getAPSIntVal().getBitWidth() > 64) | |||
2717 | return tokError("expected number in address space"); | |||
2718 | ||||
2719 | LocTy SizeLoc = Lex.getLoc(); | |||
2720 | uint64_t Size = Lex.getAPSIntVal().getZExtValue(); | |||
2721 | Lex.Lex(); | |||
2722 | ||||
2723 | if (parseToken(lltok::kw_x, "expected 'x' after element count")) | |||
2724 | return true; | |||
2725 | ||||
2726 | LocTy TypeLoc = Lex.getLoc(); | |||
2727 | Type *EltTy = nullptr; | |||
2728 | if (parseType(EltTy)) | |||
2729 | return true; | |||
2730 | ||||
2731 | if (parseToken(IsVector ? lltok::greater : lltok::rsquare, | |||
2732 | "expected end of sequential type")) | |||
2733 | return true; | |||
2734 | ||||
2735 | if (IsVector) { | |||
2736 | if (Size == 0) | |||
2737 | return error(SizeLoc, "zero element vector is illegal"); | |||
2738 | if ((unsigned)Size != Size) | |||
2739 | return error(SizeLoc, "size too large for vector"); | |||
2740 | if (!VectorType::isValidElementType(EltTy)) | |||
2741 | return error(TypeLoc, "invalid vector element type"); | |||
2742 | Result = VectorType::get(EltTy, unsigned(Size), Scalable); | |||
2743 | } else { | |||
2744 | if (!ArrayType::isValidElementType(EltTy)) | |||
2745 | return error(TypeLoc, "invalid array element type"); | |||
2746 | Result = ArrayType::get(EltTy, Size); | |||
2747 | } | |||
2748 | return false; | |||
2749 | } | |||
2750 | ||||
2751 | //===----------------------------------------------------------------------===// | |||
2752 | // Function Semantic Analysis. | |||
2753 | //===----------------------------------------------------------------------===// | |||
2754 | ||||
2755 | LLParser::PerFunctionState::PerFunctionState(LLParser &p, Function &f, | |||
2756 | int functionNumber) | |||
2757 | : P(p), F(f), FunctionNumber(functionNumber) { | |||
2758 | ||||
2759 | // Insert unnamed arguments into the NumberedVals list. | |||
2760 | for (Argument &A : F.args()) | |||
2761 | if (!A.hasName()) | |||
2762 | NumberedVals.push_back(&A); | |||
2763 | } | |||
2764 | ||||
2765 | LLParser::PerFunctionState::~PerFunctionState() { | |||
2766 | // If there were any forward referenced non-basicblock values, delete them. | |||
2767 | ||||
2768 | for (const auto &P : ForwardRefVals) { | |||
2769 | if (isa<BasicBlock>(P.second.first)) | |||
2770 | continue; | |||
2771 | P.second.first->replaceAllUsesWith( | |||
2772 | UndefValue::get(P.second.first->getType())); | |||
2773 | P.second.first->deleteValue(); | |||
2774 | } | |||
2775 | ||||
2776 | for (const auto &P : ForwardRefValIDs) { | |||
2777 | if (isa<BasicBlock>(P.second.first)) | |||
2778 | continue; | |||
2779 | P.second.first->replaceAllUsesWith( | |||
2780 | UndefValue::get(P.second.first->getType())); | |||
2781 | P.second.first->deleteValue(); | |||
2782 | } | |||
2783 | } | |||
2784 | ||||
2785 | bool LLParser::PerFunctionState::finishFunction() { | |||
2786 | if (!ForwardRefVals.empty()) | |||
2787 | return P.error(ForwardRefVals.begin()->second.second, | |||
2788 | "use of undefined value '%" + ForwardRefVals.begin()->first + | |||
2789 | "'"); | |||
2790 | if (!ForwardRefValIDs.empty()) | |||
2791 | return P.error(ForwardRefValIDs.begin()->second.second, | |||
2792 | "use of undefined value '%" + | |||
2793 | Twine(ForwardRefValIDs.begin()->first) + "'"); | |||
2794 | return false; | |||
2795 | } | |||
2796 | ||||
2797 | /// getVal - Get a value with the specified name or ID, creating a | |||
2798 | /// forward reference record if needed. This can return null if the value | |||
2799 | /// exists but does not have the right type. | |||
2800 | Value *LLParser::PerFunctionState::getVal(const std::string &Name, Type *Ty, | |||
2801 | LocTy Loc, bool IsCall) { | |||
2802 | // Look this name up in the normal function symbol table. | |||
2803 | Value *Val = F.getValueSymbolTable()->lookup(Name); | |||
2804 | ||||
2805 | // If this is a forward reference for the value, see if we already created a | |||
2806 | // forward ref record. | |||
2807 | if (!Val) { | |||
2808 | auto I = ForwardRefVals.find(Name); | |||
2809 | if (I != ForwardRefVals.end()) | |||
2810 | Val = I->second.first; | |||
2811 | } | |||
2812 | ||||
2813 | // If we have the value in the symbol table or fwd-ref table, return it. | |||
2814 | if (Val) | |||
2815 | return P.checkValidVariableType(Loc, "%" + Name, Ty, Val, IsCall); | |||
2816 | ||||
2817 | // Don't make placeholders with invalid type. | |||
2818 | if (!Ty->isFirstClassType()) { | |||
2819 | P.error(Loc, "invalid use of a non-first-class type"); | |||
2820 | return nullptr; | |||
2821 | } | |||
2822 | ||||
2823 | // Otherwise, create a new forward reference for this value and remember it. | |||
2824 | Value *FwdVal; | |||
2825 | if (Ty->isLabelTy()) { | |||
2826 | FwdVal = BasicBlock::Create(F.getContext(), Name, &F); | |||
2827 | } else { | |||
2828 | FwdVal = new Argument(Ty, Name); | |||
2829 | } | |||
2830 | ||||
2831 | ForwardRefVals[Name] = std::make_pair(FwdVal, Loc); | |||
2832 | return FwdVal; | |||
2833 | } | |||
2834 | ||||
2835 | Value *LLParser::PerFunctionState::getVal(unsigned ID, Type *Ty, LocTy Loc, | |||
2836 | bool IsCall) { | |||
2837 | // Look this name up in the normal function symbol table. | |||
2838 | Value *Val = ID < NumberedVals.size() ? NumberedVals[ID] : nullptr; | |||
2839 | ||||
2840 | // If this is a forward reference for the value, see if we already created a | |||
2841 | // forward ref record. | |||
2842 | if (!Val) { | |||
2843 | auto I = ForwardRefValIDs.find(ID); | |||
2844 | if (I != ForwardRefValIDs.end()) | |||
2845 | Val = I->second.first; | |||
2846 | } | |||
2847 | ||||
2848 | // If we have the value in the symbol table or fwd-ref table, return it. | |||
2849 | if (Val) | |||
2850 | return P.checkValidVariableType(Loc, "%" + Twine(ID), Ty, Val, IsCall); | |||
2851 | ||||
2852 | if (!Ty->isFirstClassType()) { | |||
2853 | P.error(Loc, "invalid use of a non-first-class type"); | |||
2854 | return nullptr; | |||
2855 | } | |||
2856 | ||||
2857 | // Otherwise, create a new forward reference for this value and remember it. | |||
2858 | Value *FwdVal; | |||
2859 | if (Ty->isLabelTy()) { | |||
2860 | FwdVal = BasicBlock::Create(F.getContext(), "", &F); | |||
2861 | } else { | |||
2862 | FwdVal = new Argument(Ty); | |||
2863 | } | |||
2864 | ||||
2865 | ForwardRefValIDs[ID] = std::make_pair(FwdVal, Loc); | |||
2866 | return FwdVal; | |||
2867 | } | |||
2868 | ||||
2869 | /// setInstName - After an instruction is parsed and inserted into its | |||
2870 | /// basic block, this installs its name. | |||
2871 | bool LLParser::PerFunctionState::setInstName(int NameID, | |||
2872 | const std::string &NameStr, | |||
2873 | LocTy NameLoc, Instruction *Inst) { | |||
2874 | // If this instruction has void type, it cannot have a name or ID specified. | |||
2875 | if (Inst->getType()->isVoidTy()) { | |||
2876 | if (NameID != -1 || !NameStr.empty()) | |||
2877 | return P.error(NameLoc, "instructions returning void cannot have a name"); | |||
2878 | return false; | |||
2879 | } | |||
2880 | ||||
2881 | // If this was a numbered instruction, verify that the instruction is the | |||
2882 | // expected value and resolve any forward references. | |||
2883 | if (NameStr.empty()) { | |||
2884 | // If neither a name nor an ID was specified, just use the next ID. | |||
2885 | if (NameID == -1) | |||
2886 | NameID = NumberedVals.size(); | |||
2887 | ||||
2888 | if (unsigned(NameID) != NumberedVals.size()) | |||
2889 | return P.error(NameLoc, "instruction expected to be numbered '%" + | |||
2890 | Twine(NumberedVals.size()) + "'"); | |||
2891 | ||||
2892 | auto FI = ForwardRefValIDs.find(NameID); | |||
2893 | if (FI != ForwardRefValIDs.end()) { | |||
2894 | Value *Sentinel = FI->second.first; | |||
2895 | if (Sentinel->getType() != Inst->getType()) | |||
2896 | return P.error(NameLoc, "instruction forward referenced with type '" + | |||
2897 | getTypeString(FI->second.first->getType()) + | |||
2898 | "'"); | |||
2899 | ||||
2900 | Sentinel->replaceAllUsesWith(Inst); | |||
2901 | Sentinel->deleteValue(); | |||
2902 | ForwardRefValIDs.erase(FI); | |||
2903 | } | |||
2904 | ||||
2905 | NumberedVals.push_back(Inst); | |||
2906 | return false; | |||
2907 | } | |||
2908 | ||||
2909 | // Otherwise, the instruction had a name. Resolve forward refs and set it. | |||
2910 | auto FI = ForwardRefVals.find(NameStr); | |||
2911 | if (FI != ForwardRefVals.end()) { | |||
2912 | Value *Sentinel = FI->second.first; | |||
2913 | if (Sentinel->getType() != Inst->getType()) | |||
2914 | return P.error(NameLoc, "instruction forward referenced with type '" + | |||
2915 | getTypeString(FI->second.first->getType()) + | |||
2916 | "'"); | |||
2917 | ||||
2918 | Sentinel->replaceAllUsesWith(Inst); | |||
2919 | Sentinel->deleteValue(); | |||
2920 | ForwardRefVals.erase(FI); | |||
2921 | } | |||
2922 | ||||
2923 | // Set the name on the instruction. | |||
2924 | Inst->setName(NameStr); | |||
2925 | ||||
2926 | if (Inst->getName() != NameStr) | |||
2927 | return P.error(NameLoc, "multiple definition of local value named '" + | |||
2928 | NameStr + "'"); | |||
2929 | return false; | |||
2930 | } | |||
2931 | ||||
2932 | /// getBB - Get a basic block with the specified name or ID, creating a | |||
2933 | /// forward reference record if needed. | |||
2934 | BasicBlock *LLParser::PerFunctionState::getBB(const std::string &Name, | |||
2935 | LocTy Loc) { | |||
2936 | return dyn_cast_or_null<BasicBlock>( | |||
2937 | getVal(Name, Type::getLabelTy(F.getContext()), Loc, /*IsCall=*/false)); | |||
2938 | } | |||
2939 | ||||
2940 | BasicBlock *LLParser::PerFunctionState::getBB(unsigned ID, LocTy Loc) { | |||
2941 | return dyn_cast_or_null<BasicBlock>( | |||
2942 | getVal(ID, Type::getLabelTy(F.getContext()), Loc, /*IsCall=*/false)); | |||
2943 | } | |||
2944 | ||||
2945 | /// defineBB - Define the specified basic block, which is either named or | |||
2946 | /// unnamed. If there is an error, this returns null otherwise it returns | |||
2947 | /// the block being defined. | |||
2948 | BasicBlock *LLParser::PerFunctionState::defineBB(const std::string &Name, | |||
2949 | int NameID, LocTy Loc) { | |||
2950 | BasicBlock *BB; | |||
2951 | if (Name.empty()) { | |||
2952 | if (NameID != -1 && unsigned(NameID) != NumberedVals.size()) { | |||
2953 | P.error(Loc, "label expected to be numbered '" + | |||
2954 | Twine(NumberedVals.size()) + "'"); | |||
2955 | return nullptr; | |||
2956 | } | |||
2957 | BB = getBB(NumberedVals.size(), Loc); | |||
2958 | if (!BB) { | |||
2959 | P.error(Loc, "unable to create block numbered '" + | |||
2960 | Twine(NumberedVals.size()) + "'"); | |||
2961 | return nullptr; | |||
2962 | } | |||
2963 | } else { | |||
2964 | BB = getBB(Name, Loc); | |||
2965 | if (!BB) { | |||
2966 | P.error(Loc, "unable to create block named '" + Name + "'"); | |||
2967 | return nullptr; | |||
2968 | } | |||
2969 | } | |||
2970 | ||||
2971 | // Move the block to the end of the function. Forward ref'd blocks are | |||
2972 | // inserted wherever they happen to be referenced. | |||
2973 | F.getBasicBlockList().splice(F.end(), F.getBasicBlockList(), BB); | |||
2974 | ||||
2975 | // Remove the block from forward ref sets. | |||
2976 | if (Name.empty()) { | |||
2977 | ForwardRefValIDs.erase(NumberedVals.size()); | |||
2978 | NumberedVals.push_back(BB); | |||
2979 | } else { | |||
2980 | // BB forward references are already in the function symbol table. | |||
2981 | ForwardRefVals.erase(Name); | |||
2982 | } | |||
2983 | ||||
2984 | return BB; | |||
2985 | } | |||
2986 | ||||
2987 | //===----------------------------------------------------------------------===// | |||
2988 | // Constants. | |||
2989 | //===----------------------------------------------------------------------===// | |||
2990 | ||||
2991 | /// parseValID - parse an abstract value that doesn't necessarily have a | |||
2992 | /// type implied. For example, if we parse "4" we don't know what integer type | |||
2993 | /// it has. The value will later be combined with its type and checked for | |||
2994 | /// sanity. PFS is used to convert function-local operands of metadata (since | |||
2995 | /// metadata operands are not just parsed here but also converted to values). | |||
2996 | /// PFS can be null when we are not parsing metadata values inside a function. | |||
2997 | bool LLParser::parseValID(ValID &ID, PerFunctionState *PFS, Type *ExpectedTy) { | |||
2998 | ID.Loc = Lex.getLoc(); | |||
2999 | switch (Lex.getKind()) { | |||
| ||||
3000 | default: | |||
3001 | return tokError("expected value token"); | |||
3002 | case lltok::GlobalID: // @42 | |||
3003 | ID.UIntVal = Lex.getUIntVal(); | |||
3004 | ID.Kind = ValID::t_GlobalID; | |||
3005 | break; | |||
3006 | case lltok::GlobalVar: // @foo | |||
3007 | ID.StrVal = Lex.getStrVal(); | |||
3008 | ID.Kind = ValID::t_GlobalName; | |||
3009 | break; | |||
3010 | case lltok::LocalVarID: // %42 | |||
3011 | ID.UIntVal = Lex.getUIntVal(); | |||
3012 | ID.Kind = ValID::t_LocalID; | |||
3013 | break; | |||
3014 | case lltok::LocalVar: // %foo | |||
3015 | ID.StrVal = Lex.getStrVal(); | |||
3016 | ID.Kind = ValID::t_LocalName; | |||
3017 | break; | |||
3018 | case lltok::APSInt: | |||
3019 | ID.APSIntVal = Lex.getAPSIntVal(); | |||
3020 | ID.Kind = ValID::t_APSInt; | |||
3021 | break; | |||
3022 | case lltok::APFloat: | |||
3023 | ID.APFloatVal = Lex.getAPFloatVal(); | |||
3024 | ID.Kind = ValID::t_APFloat; | |||
3025 | break; | |||
3026 | case lltok::kw_true: | |||
3027 | ID.ConstantVal = ConstantInt::getTrue(Context); | |||
3028 | ID.Kind = ValID::t_Constant; | |||
3029 | break; | |||
3030 | case lltok::kw_false: | |||
3031 | ID.ConstantVal = ConstantInt::getFalse(Context); | |||
3032 | ID.Kind = ValID::t_Constant; | |||
3033 | break; | |||
3034 | case lltok::kw_null: ID.Kind = ValID::t_Null; break; | |||
3035 | case lltok::kw_undef: ID.Kind = ValID::t_Undef; break; | |||
3036 | case lltok::kw_poison: ID.Kind = ValID::t_Poison; break; | |||
3037 | case lltok::kw_zeroinitializer: ID.Kind = ValID::t_Zero; break; | |||
3038 | case lltok::kw_none: ID.Kind = ValID::t_None; break; | |||
3039 | ||||
3040 | case lltok::lbrace: { | |||
3041 | // ValID ::= '{' ConstVector '}' | |||
3042 | Lex.Lex(); | |||
3043 | SmallVector<Constant*, 16> Elts; | |||
3044 | if (parseGlobalValueVector(Elts) || | |||
3045 | parseToken(lltok::rbrace, "expected end of struct constant")) | |||
3046 | return true; | |||
3047 | ||||
3048 | ID.ConstantStructElts = std::make_unique<Constant *[]>(Elts.size()); | |||
3049 | ID.UIntVal = Elts.size(); | |||
3050 | memcpy(ID.ConstantStructElts.get(), Elts.data(), | |||
3051 | Elts.size() * sizeof(Elts[0])); | |||
3052 | ID.Kind = ValID::t_ConstantStruct; | |||
3053 | return false; | |||
3054 | } | |||
3055 | case lltok::less: { | |||
3056 | // ValID ::= '<' ConstVector '>' --> Vector. | |||
3057 | // ValID ::= '<' '{' ConstVector '}' '>' --> Packed Struct. | |||
3058 | Lex.Lex(); | |||
3059 | bool isPackedStruct = EatIfPresent(lltok::lbrace); | |||
3060 | ||||
3061 | SmallVector<Constant*, 16> Elts; | |||
3062 | LocTy FirstEltLoc = Lex.getLoc(); | |||
3063 | if (parseGlobalValueVector(Elts) || | |||
3064 | (isPackedStruct && | |||
3065 | parseToken(lltok::rbrace, "expected end of packed struct")) || | |||
3066 | parseToken(lltok::greater, "expected end of constant")) | |||
3067 | return true; | |||
3068 | ||||
3069 | if (isPackedStruct) { | |||
3070 | ID.ConstantStructElts = std::make_unique<Constant *[]>(Elts.size()); | |||
3071 | memcpy(ID.ConstantStructElts.get(), Elts.data(), | |||
3072 | Elts.size() * sizeof(Elts[0])); | |||
3073 | ID.UIntVal = Elts.size(); | |||
3074 | ID.Kind = ValID::t_PackedConstantStruct; | |||
3075 | return false; | |||
3076 | } | |||
3077 | ||||
3078 | if (Elts.empty()) | |||
3079 | return error(ID.Loc, "constant vector must not be empty"); | |||
3080 | ||||
3081 | if (!Elts[0]->getType()->isIntegerTy() && | |||
3082 | !Elts[0]->getType()->isFloatingPointTy() && | |||
3083 | !Elts[0]->getType()->isPointerTy()) | |||
3084 | return error( | |||
3085 | FirstEltLoc, | |||
3086 | "vector elements must have integer, pointer or floating point type"); | |||
3087 | ||||
3088 | // Verify that all the vector elements have the same type. | |||
3089 | for (unsigned i = 1, e = Elts.size(); i != e; ++i) | |||
3090 | if (Elts[i]->getType() != Elts[0]->getType()) | |||
3091 | return error(FirstEltLoc, "vector element #" + Twine(i) + | |||
3092 | " is not of type '" + | |||
3093 | getTypeString(Elts[0]->getType())); | |||
3094 | ||||
3095 | ID.ConstantVal = ConstantVector::get(Elts); | |||
3096 | ID.Kind = ValID::t_Constant; | |||
3097 | return false; | |||
3098 | } | |||
3099 | case lltok::lsquare: { // Array Constant | |||
3100 | Lex.Lex(); | |||
3101 | SmallVector<Constant*, 16> Elts; | |||
3102 | LocTy FirstEltLoc = Lex.getLoc(); | |||
3103 | if (parseGlobalValueVector(Elts) || | |||
3104 | parseToken(lltok::rsquare, "expected end of array constant")) | |||
3105 | return true; | |||
3106 | ||||
3107 | // Handle empty element. | |||
3108 | if (Elts.empty()) { | |||
3109 | // Use undef instead of an array because it's inconvenient to determine | |||
3110 | // the element type at this point, there being no elements to examine. | |||
3111 | ID.Kind = ValID::t_EmptyArray; | |||
3112 | return false; | |||
3113 | } | |||
3114 | ||||
3115 | if (!Elts[0]->getType()->isFirstClassType()) | |||
3116 | return error(FirstEltLoc, "invalid array element type: " + | |||
3117 | getTypeString(Elts[0]->getType())); | |||
3118 | ||||
3119 | ArrayType *ATy = ArrayType::get(Elts[0]->getType(), Elts.size()); | |||
3120 | ||||
3121 | // Verify all elements are correct type! | |||
3122 | for (unsigned i = 0, e = Elts.size(); i != e; ++i) { | |||
3123 | if (Elts[i]->getType() != Elts[0]->getType()) | |||
3124 | return error(FirstEltLoc, "array element #" + Twine(i) + | |||
3125 | " is not of type '" + | |||
3126 | getTypeString(Elts[0]->getType())); | |||
3127 | } | |||
3128 | ||||
3129 | ID.ConstantVal = ConstantArray::get(ATy, Elts); | |||
3130 | ID.Kind = ValID::t_Constant; | |||
3131 | return false; | |||
3132 | } | |||
3133 | case lltok::kw_c: // c "foo" | |||
3134 | Lex.Lex(); | |||
3135 | ID.ConstantVal = ConstantDataArray::getString(Context, Lex.getStrVal(), | |||
3136 | false); | |||
3137 | if (parseToken(lltok::StringConstant, "expected string")) | |||
3138 | return true; | |||
3139 | ID.Kind = ValID::t_Constant; | |||
3140 | return false; | |||
3141 | ||||
3142 | case lltok::kw_asm: { | |||
3143 | // ValID ::= 'asm' SideEffect? AlignStack? IntelDialect? STRINGCONSTANT ',' | |||
3144 | // STRINGCONSTANT | |||
3145 | bool HasSideEffect, AlignStack, AsmDialect, CanThrow; | |||
3146 | Lex.Lex(); | |||
3147 | if (parseOptionalToken(lltok::kw_sideeffect, HasSideEffect) || | |||
3148 | parseOptionalToken(lltok::kw_alignstack, AlignStack) || | |||
3149 | parseOptionalToken(lltok::kw_inteldialect, AsmDialect) || | |||
3150 | parseOptionalToken(lltok::kw_unwind, CanThrow) || | |||
3151 | parseStringConstant(ID.StrVal) || | |||
3152 | parseToken(lltok::comma, "expected comma in inline asm expression") || | |||
3153 | parseToken(lltok::StringConstant, "expected constraint string")) | |||
3154 | return true; | |||
3155 | ID.StrVal2 = Lex.getStrVal(); | |||
3156 | ID.UIntVal = unsigned(HasSideEffect) | (unsigned(AlignStack) << 1) | | |||
3157 | (unsigned(AsmDialect) << 2) | (unsigned(CanThrow) << 3); | |||
3158 | ID.Kind = ValID::t_InlineAsm; | |||
3159 | return false; | |||
3160 | } | |||
3161 | ||||
3162 | case lltok::kw_blockaddress: { | |||
3163 | // ValID ::= 'blockaddress' '(' @foo ',' %bar ')' | |||
3164 | Lex.Lex(); | |||
3165 | ||||
3166 | ValID Fn, Label; | |||
3167 | ||||
3168 | if (parseToken(lltok::lparen, "expected '(' in block address expression") || | |||
3169 | parseValID(Fn, PFS) || | |||
3170 | parseToken(lltok::comma, | |||
3171 | "expected comma in block address expression") || | |||
3172 | parseValID(Label, PFS) || | |||
3173 | parseToken(lltok::rparen, "expected ')' in block address expression")) | |||
3174 | return true; | |||
3175 | ||||
3176 | if (Fn.Kind != ValID::t_GlobalID && Fn.Kind != ValID::t_GlobalName) | |||
3177 | return error(Fn.Loc, "expected function name in blockaddress"); | |||
3178 | if (Label.Kind != ValID::t_LocalID && Label.Kind != ValID::t_LocalName) | |||
3179 | return error(Label.Loc, "expected basic block name in blockaddress"); | |||
3180 | ||||
3181 | // Try to find the function (but skip it if it's forward-referenced). | |||
3182 | GlobalValue *GV = nullptr; | |||
3183 | if (Fn.Kind == ValID::t_GlobalID) { | |||
3184 | if (Fn.UIntVal < NumberedVals.size()) | |||
3185 | GV = NumberedVals[Fn.UIntVal]; | |||
3186 | } else if (!ForwardRefVals.count(Fn.StrVal)) { | |||
3187 | GV = M->getNamedValue(Fn.StrVal); | |||
3188 | } | |||
3189 | Function *F = nullptr; | |||
3190 | if (GV) { | |||
3191 | // Confirm that it's actually a function with a definition. | |||
3192 | if (!isa<Function>(GV)) | |||
3193 | return error(Fn.Loc, "expected function name in blockaddress"); | |||
3194 | F = cast<Function>(GV); | |||
3195 | if (F->isDeclaration()) | |||
3196 | return error(Fn.Loc, "cannot take blockaddress inside a declaration"); | |||
3197 | } | |||
3198 | ||||
3199 | if (!F) { | |||
3200 | // Make a global variable as a placeholder for this reference. | |||
3201 | GlobalValue *&FwdRef = | |||
3202 | ForwardRefBlockAddresses.insert(std::make_pair( | |||
3203 | std::move(Fn), | |||
3204 | std::map<ValID, GlobalValue *>())) | |||
3205 | .first->second.insert(std::make_pair(std::move(Label), nullptr)) | |||
3206 | .first->second; | |||
3207 | if (!FwdRef) { | |||
3208 | unsigned FwdDeclAS; | |||
3209 | if (ExpectedTy) { | |||
3210 | // If we know the type that the blockaddress is being assigned to, | |||
3211 | // we can use the address space of that type. | |||
3212 | if (!ExpectedTy->isPointerTy()) | |||
3213 | return error(ID.Loc, | |||
3214 | "type of blockaddress must be a pointer and not '" + | |||
3215 | getTypeString(ExpectedTy) + "'"); | |||
3216 | FwdDeclAS = ExpectedTy->getPointerAddressSpace(); | |||
3217 | } else if (PFS) { | |||
3218 | // Otherwise, we default the address space of the current function. | |||
3219 | FwdDeclAS = PFS->getFunction().getAddressSpace(); | |||
3220 | } else { | |||
3221 | llvm_unreachable("Unknown address space for blockaddress")__builtin_unreachable(); | |||
3222 | } | |||
3223 | FwdRef = new GlobalVariable( | |||
3224 | *M, Type::getInt8Ty(Context), false, GlobalValue::InternalLinkage, | |||
3225 | nullptr, "", nullptr, GlobalValue::NotThreadLocal, FwdDeclAS); | |||
3226 | } | |||
3227 | ||||
3228 | ID.ConstantVal = FwdRef; | |||
3229 | ID.Kind = ValID::t_Constant; | |||
3230 | return false; | |||
3231 | } | |||
3232 | ||||
3233 | // We found the function; now find the basic block. Don't use PFS, since we | |||
3234 | // might be inside a constant expression. | |||
3235 | BasicBlock *BB; | |||
3236 | if (BlockAddressPFS && F == &BlockAddressPFS->getFunction()) { | |||
3237 | if (Label.Kind == ValID::t_LocalID) | |||
3238 | BB = BlockAddressPFS->getBB(Label.UIntVal, Label.Loc); | |||
3239 | else | |||
3240 | BB = BlockAddressPFS->getBB(Label.StrVal, Label.Loc); | |||
3241 | if (!BB) | |||
3242 | return error(Label.Loc, "referenced value is not a basic block"); | |||
3243 | } else { | |||
3244 | if (Label.Kind == ValID::t_LocalID) | |||
3245 | return error(Label.Loc, "cannot take address of numeric label after " | |||
3246 | "the function is defined"); | |||
3247 | BB = dyn_cast_or_null<BasicBlock>( | |||
3248 | F->getValueSymbolTable()->lookup(Label.StrVal)); | |||
3249 | if (!BB) | |||
3250 | return error(Label.Loc, "referenced value is not a basic block"); | |||
3251 | } | |||
3252 | ||||
3253 | ID.ConstantVal = BlockAddress::get(F, BB); | |||
3254 | ID.Kind = ValID::t_Constant; | |||
3255 | return false; | |||
3256 | } | |||
3257 | ||||
3258 | case lltok::kw_dso_local_equivalent: { | |||
3259 | // ValID ::= 'dso_local_equivalent' @foo | |||
3260 | Lex.Lex(); | |||
3261 | ||||
3262 | ValID Fn; | |||
3263 | ||||
3264 | if (parseValID(Fn, PFS)) | |||
3265 | return true; | |||
3266 | ||||
3267 | if (Fn.Kind != ValID::t_GlobalID && Fn.Kind != ValID::t_GlobalName) | |||
3268 | return error(Fn.Loc, | |||
3269 | "expected global value name in dso_local_equivalent"); | |||
3270 | ||||
3271 | // Try to find the function (but skip it if it's forward-referenced). | |||
3272 | GlobalValue *GV = nullptr; | |||
3273 | if (Fn.Kind
| |||
3274 | if (Fn.UIntVal < NumberedVals.size()) | |||
3275 | GV = NumberedVals[Fn.UIntVal]; | |||
3276 | } else if (!ForwardRefVals.count(Fn.StrVal)) { | |||
3277 | GV = M->getNamedValue(Fn.StrVal); | |||
3278 | } | |||
3279 | ||||
3280 | assert(GV && "Could not find a corresponding global variable")((void)0); | |||
3281 | ||||
3282 | if (!GV->getValueType()->isFunctionTy()) | |||
| ||||
3283 | return error(Fn.Loc, "expected a function, alias to function, or ifunc " | |||
3284 | "in dso_local_equivalent"); | |||
3285 | ||||
3286 | ID.ConstantVal = DSOLocalEquivalent::get(GV); | |||
3287 | ID.Kind = ValID::t_Constant; | |||
3288 | return false; | |||
3289 | } | |||
3290 | ||||
3291 | case lltok::kw_trunc: | |||
3292 | case lltok::kw_zext: | |||
3293 | case lltok::kw_sext: | |||
3294 | case lltok::kw_fptrunc: | |||
3295 | case lltok::kw_fpext: | |||
3296 | case lltok::kw_bitcast: | |||
3297 | case lltok::kw_addrspacecast: | |||
3298 | case lltok::kw_uitofp: | |||
3299 | case lltok::kw_sitofp: | |||
3300 | case lltok::kw_fptoui: | |||
3301 | case lltok::kw_fptosi: | |||
3302 | case lltok::kw_inttoptr: | |||
3303 | case lltok::kw_ptrtoint: { | |||
3304 | unsigned Opc = Lex.getUIntVal(); | |||
3305 | Type *DestTy = nullptr; | |||
3306 | Constant *SrcVal; | |||
3307 | Lex.Lex(); | |||
3308 | if (parseToken(lltok::lparen, "expected '(' after constantexpr cast") || | |||
3309 | parseGlobalTypeAndValue(SrcVal) || | |||
3310 | parseToken(lltok::kw_to, "expected 'to' in constantexpr cast") || | |||
3311 | parseType(DestTy) || | |||
3312 | parseToken(lltok::rparen, "expected ')' at end of constantexpr cast")) | |||
3313 | return true; | |||
3314 | if (!CastInst::castIsValid((Instruction::CastOps)Opc, SrcVal, DestTy)) | |||
3315 | return error(ID.Loc, "invalid cast opcode for cast from '" + | |||
3316 | getTypeString(SrcVal->getType()) + "' to '" + | |||
3317 | getTypeString(DestTy) + "'"); | |||
3318 | ID.ConstantVal = ConstantExpr::getCast((Instruction::CastOps)Opc, | |||
3319 | SrcVal, DestTy); | |||
3320 | ID.Kind = ValID::t_Constant; | |||
3321 | return false; | |||
3322 | } | |||
3323 | case lltok::kw_extractvalue: { | |||
3324 | Lex.Lex(); | |||
3325 | Constant *Val; | |||
3326 | SmallVector<unsigned, 4> Indices; | |||
3327 | if (parseToken(lltok::lparen, | |||
3328 | "expected '(' in extractvalue constantexpr") || | |||
3329 | parseGlobalTypeAndValue(Val) || parseIndexList(Indices) || | |||
3330 | parseToken(lltok::rparen, "expected ')' in extractvalue constantexpr")) | |||
3331 | return true; | |||
3332 | ||||
3333 | if (!Val->getType()->isAggregateType()) | |||
3334 | return error(ID.Loc, "extractvalue operand must be aggregate type"); | |||
3335 | if (!ExtractValueInst::getIndexedType(Val->getType(), Indices)) | |||
3336 | return error(ID.Loc, "invalid indices for extractvalue"); | |||
3337 | ID.ConstantVal = ConstantExpr::getExtractValue(Val, Indices); | |||
3338 | ID.Kind = ValID::t_Constant; | |||
3339 | return false; | |||
3340 | } | |||
3341 | case lltok::kw_insertvalue: { | |||
3342 | Lex.Lex(); | |||
3343 | Constant *Val0, *Val1; | |||
3344 | SmallVector<unsigned, 4> Indices; | |||
3345 | if (parseToken(lltok::lparen, "expected '(' in insertvalue constantexpr") || | |||
3346 | parseGlobalTypeAndValue(Val0) || | |||
3347 | parseToken(lltok::comma, | |||
3348 | "expected comma in insertvalue constantexpr") || | |||
3349 | parseGlobalTypeAndValue(Val1) || parseIndexList(Indices) || | |||
3350 | parseToken(lltok::rparen, "expected ')' in insertvalue constantexpr")) | |||
3351 | return true; | |||
3352 | if (!Val0->getType()->isAggregateType()) | |||
3353 | return error(ID.Loc, "insertvalue operand must be aggregate type"); | |||
3354 | Type *IndexedType = | |||
3355 | ExtractValueInst::getIndexedType(Val0->getType(), Indices); | |||
3356 | if (!IndexedType) | |||
3357 | return error(ID.Loc, "invalid indices for insertvalue"); | |||
3358 | if (IndexedType != Val1->getType()) | |||
3359 | return error(ID.Loc, "insertvalue operand and field disagree in type: '" + | |||
3360 | getTypeString(Val1->getType()) + | |||
3361 | "' instead of '" + getTypeString(IndexedType) + | |||
3362 | "'"); | |||
3363 | ID.ConstantVal = ConstantExpr::getInsertValue(Val0, Val1, Indices); | |||
3364 | ID.Kind = ValID::t_Constant; | |||
3365 | return false; | |||
3366 | } | |||
3367 | case lltok::kw_icmp: | |||
3368 | case lltok::kw_fcmp: { | |||
3369 | unsigned PredVal, Opc = Lex.getUIntVal(); | |||
3370 | Constant *Val0, *Val1; | |||
3371 | Lex.Lex(); | |||
3372 | if (parseCmpPredicate(PredVal, Opc) || | |||
3373 | parseToken(lltok::lparen, "expected '(' in compare constantexpr") || | |||
3374 | parseGlobalTypeAndValue(Val0) || | |||
3375 | parseToken(lltok::comma, "expected comma in compare constantexpr") || | |||
3376 | parseGlobalTypeAndValue(Val1) || | |||
3377 | parseToken(lltok::rparen, "expected ')' in compare constantexpr")) | |||
3378 | return true; | |||
3379 | ||||
3380 | if (Val0->getType() != Val1->getType()) | |||
3381 | return error(ID.Loc, "compare operands must have the same type"); | |||
3382 | ||||
3383 | CmpInst::Predicate Pred = (CmpInst::Predicate)PredVal; | |||
3384 | ||||
3385 | if (Opc == Instruction::FCmp) { | |||
3386 | if (!Val0->getType()->isFPOrFPVectorTy()) | |||
3387 | return error(ID.Loc, "fcmp requires floating point operands"); | |||
3388 | ID.ConstantVal = ConstantExpr::getFCmp(Pred, Val0, Val1); | |||
3389 | } else { | |||
3390 | assert(Opc == Instruction::ICmp && "Unexpected opcode for CmpInst!")((void)0); | |||
3391 | if (!Val0->getType()->isIntOrIntVectorTy() && | |||
3392 | !Val0->getType()->isPtrOrPtrVectorTy()) | |||
3393 | return error(ID.Loc, "icmp requires pointer or integer operands"); | |||
3394 | ID.ConstantVal = ConstantExpr::getICmp(Pred, Val0, Val1); | |||
3395 | } | |||
3396 | ID.Kind = ValID::t_Constant; | |||
3397 | return false; | |||
3398 | } | |||
3399 | ||||
3400 | // Unary Operators. | |||
3401 | case lltok::kw_fneg: { | |||
3402 | unsigned Opc = Lex.getUIntVal(); | |||
3403 | Constant *Val; | |||
3404 | Lex.Lex(); | |||
3405 | if (parseToken(lltok::lparen, "expected '(' in unary constantexpr") || | |||
3406 | parseGlobalTypeAndValue(Val) || | |||
3407 | parseToken(lltok::rparen, "expected ')' in unary constantexpr")) | |||
3408 | return true; | |||
3409 | ||||
3410 | // Check that the type is valid for the operator. | |||
3411 | switch (Opc) { | |||
3412 | case Instruction::FNeg: | |||
3413 | if (!Val->getType()->isFPOrFPVectorTy()) | |||
3414 | return error(ID.Loc, "constexpr requires fp operands"); | |||
3415 | break; | |||
3416 | default: llvm_unreachable("Unknown unary operator!")__builtin_unreachable(); | |||
3417 | } | |||
3418 | unsigned Flags = 0; | |||
3419 | Constant *C = ConstantExpr::get(Opc, Val, Flags); | |||
3420 | ID.ConstantVal = C; | |||
3421 | ID.Kind = ValID::t_Constant; | |||
3422 | return false; | |||
3423 | } | |||
3424 | // Binary Operators. | |||
3425 | case lltok::kw_add: | |||
3426 | case lltok::kw_fadd: | |||
3427 | case lltok::kw_sub: | |||
3428 | case lltok::kw_fsub: | |||
3429 | case lltok::kw_mul: | |||
3430 | case lltok::kw_fmul: | |||
3431 | case lltok::kw_udiv: | |||
3432 | case lltok::kw_sdiv: | |||
3433 | case lltok::kw_fdiv: | |||
3434 | case lltok::kw_urem: | |||
3435 | case lltok::kw_srem: | |||
3436 | case lltok::kw_frem: | |||
3437 | case lltok::kw_shl: | |||
3438 | case lltok::kw_lshr: | |||
3439 | case lltok::kw_ashr: { | |||
3440 | bool NUW = false; | |||
3441 | bool NSW = false; | |||
3442 | bool Exact = false; | |||
3443 | unsigned Opc = Lex.getUIntVal(); | |||
3444 | Constant *Val0, *Val1; | |||
3445 | Lex.Lex(); | |||
3446 | if (Opc == Instruction::Add || Opc == Instruction::Sub || | |||
3447 | Opc == Instruction::Mul || Opc == Instruction::Shl) { | |||
3448 | if (EatIfPresent(lltok::kw_nuw)) | |||
3449 | NUW = true; | |||
3450 | if (EatIfPresent(lltok::kw_nsw)) { | |||
3451 | NSW = true; | |||
3452 | if (EatIfPresent(lltok::kw_nuw)) | |||
3453 | NUW = true; | |||
3454 | } | |||
3455 | } else if (Opc == Instruction::SDiv || Opc == Instruction::UDiv || | |||
3456 | Opc == Instruction::LShr || Opc == Instruction::AShr) { | |||
3457 | if (EatIfPresent(lltok::kw_exact)) | |||
3458 | Exact = true; | |||
3459 | } | |||
3460 | if (parseToken(lltok::lparen, "expected '(' in binary constantexpr") || | |||
3461 | parseGlobalTypeAndValue(Val0) || | |||
3462 | parseToken(lltok::comma, "expected comma in binary constantexpr") || | |||
3463 | parseGlobalTypeAndValue(Val1) || | |||
3464 | parseToken(lltok::rparen, "expected ')' in binary constantexpr")) | |||
3465 | return true; | |||
3466 | if (Val0->getType() != Val1->getType()) | |||
3467 | return error(ID.Loc, "operands of constexpr must have same type"); | |||
3468 | // Check that the type is valid for the operator. | |||
3469 | switch (Opc) { | |||
3470 | case Instruction::Add: | |||
3471 | case Instruction::Sub: | |||
3472 | case Instruction::Mul: | |||
3473 | case Instruction::UDiv: | |||
3474 | case Instruction::SDiv: | |||
3475 | case Instruction::URem: | |||
3476 | case Instruction::SRem: | |||
3477 | case Instruction::Shl: | |||
3478 | case Instruction::AShr: | |||
3479 | case Instruction::LShr: | |||
3480 | if (!Val0->getType()->isIntOrIntVectorTy()) | |||
3481 | return error(ID.Loc, "constexpr requires integer operands"); | |||
3482 | break; | |||
3483 | case Instruction::FAdd: | |||
3484 | case Instruction::FSub: | |||
3485 | case Instruction::FMul: | |||
3486 | case Instruction::FDiv: | |||
3487 | case Instruction::FRem: | |||
3488 | if (!Val0->getType()->isFPOrFPVectorTy()) | |||
3489 | return error(ID.Loc, "constexpr requires fp operands"); | |||
3490 | break; | |||
3491 | default: llvm_unreachable("Unknown binary operator!")__builtin_unreachable(); | |||
3492 | } | |||
3493 | unsigned Flags = 0; | |||
3494 | if (NUW) Flags |= OverflowingBinaryOperator::NoUnsignedWrap; | |||
3495 | if (NSW) Flags |= OverflowingBinaryOperator::NoSignedWrap; | |||
3496 | if (Exact) Flags |= PossiblyExactOperator::IsExact; | |||
3497 | Constant *C = ConstantExpr::get(Opc, Val0, Val1, Flags); | |||
3498 | ID.ConstantVal = C; | |||
3499 | ID.Kind = ValID::t_Constant; | |||
3500 | return false; | |||
3501 | } | |||
3502 | ||||
3503 | // Logical Operations | |||
3504 | case lltok::kw_and: | |||
3505 | case lltok::kw_or: | |||
3506 | case lltok::kw_xor: { | |||
3507 | unsigned Opc = Lex.getUIntVal(); | |||
3508 | Constant *Val0, *Val1; | |||
3509 | Lex.Lex(); | |||
3510 | if (parseToken(lltok::lparen, "expected '(' in logical constantexpr") || | |||
3511 | parseGlobalTypeAndValue(Val0) || | |||
3512 | parseToken(lltok::comma, "expected comma in logical constantexpr") || | |||
3513 | parseGlobalTypeAndValue(Val1) || | |||
3514 | parseToken(lltok::rparen, "expected ')' in logical constantexpr")) | |||
3515 | return true; | |||
3516 | if (Val0->getType() != Val1->getType()) | |||
3517 | return error(ID.Loc, "operands of constexpr must have same type"); | |||
3518 | if (!Val0->getType()->isIntOrIntVectorTy()) | |||
3519 | return error(ID.Loc, | |||
3520 | "constexpr requires integer or integer vector operands"); | |||
3521 | ID.ConstantVal = ConstantExpr::get(Opc, Val0, Val1); | |||
3522 | ID.Kind = ValID::t_Constant; | |||
3523 | return false; | |||
3524 | } | |||
3525 | ||||
3526 | case lltok::kw_getelementptr: | |||
3527 | case lltok::kw_shufflevector: | |||
3528 | case lltok::kw_insertelement: | |||
3529 | case lltok::kw_extractelement: | |||
3530 | case lltok::kw_select: { | |||
3531 | unsigned Opc = Lex.getUIntVal(); | |||
3532 | SmallVector<Constant*, 16> Elts; | |||
3533 | bool InBounds = false; | |||
3534 | Type *Ty; | |||
3535 | Lex.Lex(); | |||
3536 | ||||
3537 | if (Opc == Instruction::GetElementPtr) | |||
3538 | InBounds = EatIfPresent(lltok::kw_inbounds); | |||
3539 | ||||
3540 | if (parseToken(lltok::lparen, "expected '(' in constantexpr")) | |||
3541 | return true; | |||
3542 | ||||
3543 | LocTy ExplicitTypeLoc = Lex.getLoc(); | |||
3544 | if (Opc == Instruction::GetElementPtr) { | |||
3545 | if (parseType(Ty) || | |||
3546 | parseToken(lltok::comma, "expected comma after getelementptr's type")) | |||
3547 | return true; | |||
3548 | } | |||
3549 | ||||
3550 | Optional<unsigned> InRangeOp; | |||
3551 | if (parseGlobalValueVector( | |||
3552 | Elts, Opc == Instruction::GetElementPtr ? &InRangeOp : nullptr) || | |||
3553 | parseToken(lltok::rparen, "expected ')' in constantexpr")) | |||
3554 | return true; | |||
3555 | ||||
3556 | if (Opc == Instruction::GetElementPtr) { | |||
3557 | if (Elts.size() == 0 || | |||
3558 | !Elts[0]->getType()->isPtrOrPtrVectorTy()) | |||
3559 | return error(ID.Loc, "base of getelementptr must be a pointer"); | |||
3560 | ||||
3561 | Type *BaseType = Elts[0]->getType(); | |||
3562 | auto *BasePointerType = cast<PointerType>(BaseType->getScalarType()); | |||
3563 | if (!BasePointerType->isOpaqueOrPointeeTypeMatches(Ty)) { | |||
3564 | return error( | |||
3565 | ExplicitTypeLoc, | |||
3566 | typeComparisonErrorMessage( | |||
3567 | "explicit pointee type doesn't match operand's pointee type", | |||
3568 | Ty, BasePointerType->getElementType())); | |||
3569 | } | |||
3570 | ||||
3571 | unsigned GEPWidth = | |||
3572 | BaseType->isVectorTy() | |||
3573 | ? cast<FixedVectorType>(BaseType)->getNumElements() | |||
3574 | : 0; | |||
3575 | ||||
3576 | ArrayRef<Constant *> Indices(Elts.begin() + 1, Elts.end()); | |||
3577 | for (Constant *Val : Indices) { | |||
3578 | Type *ValTy = Val->getType(); | |||
3579 | if (!ValTy->isIntOrIntVectorTy()) | |||
3580 | return error(ID.Loc, "getelementptr index must be an integer"); | |||
3581 | if (auto *ValVTy = dyn_cast<VectorType>(ValTy)) { | |||
3582 | unsigned ValNumEl = cast<FixedVectorType>(ValVTy)->getNumElements(); | |||
3583 | if (GEPWidth && (ValNumEl != GEPWidth)) | |||
3584 | return error( | |||
3585 | ID.Loc, | |||
3586 | "getelementptr vector index has a wrong number of elements"); | |||
3587 | // GEPWidth may have been unknown because the base is a scalar, | |||
3588 | // but it is known now. | |||
3589 | GEPWidth = ValNumEl; | |||
3590 | } | |||
3591 | } | |||
3592 | ||||
3593 | SmallPtrSet<Type*, 4> Visited; | |||
3594 | if (!Indices.empty() && !Ty->isSized(&Visited)) | |||
3595 | return error(ID.Loc, "base element of getelementptr must be sized"); | |||
3596 | ||||
3597 | if (!GetElementPtrInst::getIndexedType(Ty, Indices)) | |||
3598 | return error(ID.Loc, "invalid getelementptr indices"); | |||
3599 | ||||
3600 | if (InRangeOp) { | |||
3601 | if (*InRangeOp == 0) | |||
3602 | return error(ID.Loc, | |||
3603 | "inrange keyword may not appear on pointer operand"); | |||
3604 | --*InRangeOp; | |||
3605 | } | |||
3606 | ||||
3607 | ID.ConstantVal = ConstantExpr::getGetElementPtr(Ty, Elts[0], Indices, | |||
3608 | InBounds, InRangeOp); | |||
3609 | } else if (Opc == Instruction::Select) { | |||
3610 | if (Elts.size() != 3) | |||
3611 | return error(ID.Loc, "expected three operands to select"); | |||
3612 | if (const char *Reason = SelectInst::areInvalidOperands(Elts[0], Elts[1], | |||
3613 | Elts[2])) | |||
3614 | return error(ID.Loc, Reason); | |||
3615 | ID.ConstantVal = ConstantExpr::getSelect(Elts[0], Elts[1], Elts[2]); | |||
3616 | } else if (Opc == Instruction::ShuffleVector) { | |||
3617 | if (Elts.size() != 3) | |||
3618 | return error(ID.Loc, "expected three operands to shufflevector"); | |||
3619 | if (!ShuffleVectorInst::isValidOperands(Elts[0], Elts[1], Elts[2])) | |||
3620 | return error(ID.Loc, "invalid operands to shufflevector"); | |||
3621 | SmallVector<int, 16> Mask; | |||
3622 | ShuffleVectorInst::getShuffleMask(cast<Constant>(Elts[2]), Mask); | |||
3623 | ID.ConstantVal = ConstantExpr::getShuffleVector(Elts[0], Elts[1], Mask); | |||
3624 | } else if (Opc == Instruction::ExtractElement) { | |||
3625 | if (Elts.size() != 2) | |||
3626 | return error(ID.Loc, "expected two operands to extractelement"); | |||
3627 | if (!ExtractElementInst::isValidOperands(Elts[0], Elts[1])) | |||
3628 | return error(ID.Loc, "invalid extractelement operands"); | |||
3629 | ID.ConstantVal = ConstantExpr::getExtractElement(Elts[0], Elts[1]); | |||
3630 | } else { | |||
3631 | assert(Opc == Instruction::InsertElement && "Unknown opcode")((void)0); | |||
3632 | if (Elts.size() != 3) | |||
3633 | return error(ID.Loc, "expected three operands to insertelement"); | |||
3634 | if (!InsertElementInst::isValidOperands(Elts[0], Elts[1], Elts[2])) | |||
3635 | return error(ID.Loc, "invalid insertelement operands"); | |||
3636 | ID.ConstantVal = | |||
3637 | ConstantExpr::getInsertElement(Elts[0], Elts[1],Elts[2]); | |||
3638 | } | |||
3639 | ||||
3640 | ID.Kind = ValID::t_Constant; | |||
3641 | return false; | |||
3642 | } | |||
3643 | } | |||
3644 | ||||
3645 | Lex.Lex(); | |||
3646 | return false; | |||
3647 | } | |||
3648 | ||||
3649 | /// parseGlobalValue - parse a global value with the specified type. | |||
3650 | bool LLParser::parseGlobalValue(Type *Ty, Constant *&C) { | |||
3651 | C = nullptr; | |||
3652 | ValID ID; | |||
3653 | Value *V = nullptr; | |||
3654 | bool Parsed = parseValID(ID, /*PFS=*/nullptr, Ty) || | |||
3655 | convertValIDToValue(Ty, ID, V, nullptr, /*IsCall=*/false); | |||
3656 | if (V && !(C = dyn_cast<Constant>(V))) | |||
3657 | return error(ID.Loc, "global values must be constants"); | |||
3658 | return Parsed; | |||
3659 | } | |||
3660 | ||||
3661 | bool LLParser::parseGlobalTypeAndValue(Constant *&V) { | |||
3662 | Type *Ty = nullptr; | |||
3663 | return parseType(Ty) || parseGlobalValue(Ty, V); | |||
3664 | } | |||
3665 | ||||
3666 | bool LLParser::parseOptionalComdat(StringRef GlobalName, Comdat *&C) { | |||
3667 | C = nullptr; | |||
3668 | ||||
3669 | LocTy KwLoc = Lex.getLoc(); | |||
3670 | if (!EatIfPresent(lltok::kw_comdat)) | |||
3671 | return false; | |||
3672 | ||||
3673 | if (EatIfPresent(lltok::lparen)) { | |||
3674 | if (Lex.getKind() != lltok::ComdatVar) | |||
3675 | return tokError("expected comdat variable"); | |||
3676 | C = getComdat(Lex.getStrVal(), Lex.getLoc()); | |||
3677 | Lex.Lex(); | |||
3678 | if (parseToken(lltok::rparen, "expected ')' after comdat var")) | |||
3679 | return true; | |||
3680 | } else { | |||
3681 | if (GlobalName.empty()) | |||
3682 | return tokError("comdat cannot be unnamed"); | |||
3683 | C = getComdat(std::string(GlobalName), KwLoc); | |||
3684 | } | |||
3685 | ||||
3686 | return false; | |||
3687 | } | |||
3688 | ||||
3689 | /// parseGlobalValueVector | |||
3690 | /// ::= /*empty*/ | |||
3691 | /// ::= [inrange] TypeAndValue (',' [inrange] TypeAndValue)* | |||
3692 | bool LLParser::parseGlobalValueVector(SmallVectorImpl<Constant *> &Elts, | |||
3693 | Optional<unsigned> *InRangeOp) { | |||
3694 | // Empty list. | |||
3695 | if (Lex.getKind() == lltok::rbrace || | |||
3696 | Lex.getKind() == lltok::rsquare || | |||
3697 | Lex.getKind() == lltok::greater || | |||
3698 | Lex.getKind() == lltok::rparen) | |||
3699 | return false; | |||
3700 | ||||
3701 | do { | |||
3702 | if (InRangeOp && !*InRangeOp && EatIfPresent(lltok::kw_inrange)) | |||
3703 | *InRangeOp = Elts.size(); | |||
3704 | ||||
3705 | Constant *C; | |||
3706 | if (parseGlobalTypeAndValue(C)) | |||
3707 | return true; | |||
3708 | Elts.push_back(C); | |||
3709 | } while (EatIfPresent(lltok::comma)); | |||
3710 | ||||
3711 | return false; | |||
3712 | } | |||
3713 | ||||
3714 | bool LLParser::parseMDTuple(MDNode *&MD, bool IsDistinct) { | |||
3715 | SmallVector<Metadata *, 16> Elts; | |||
3716 | if (parseMDNodeVector(Elts)) | |||
3717 | return true; | |||
3718 | ||||
3719 | MD = (IsDistinct ? MDTuple::getDistinct : MDTuple::get)(Context, Elts); | |||
3720 | return false; | |||
3721 | } | |||
3722 | ||||
3723 | /// MDNode: | |||
3724 | /// ::= !{ ... } | |||
3725 | /// ::= !7 | |||
3726 | /// ::= !DILocation(...) | |||
3727 | bool LLParser::parseMDNode(MDNode *&N) { | |||
3728 | if (Lex.getKind() == lltok::MetadataVar) | |||
3729 | return parseSpecializedMDNode(N); | |||
3730 | ||||
3731 | return parseToken(lltok::exclaim, "expected '!' here") || parseMDNodeTail(N); | |||
3732 | } | |||
3733 | ||||
3734 | bool LLParser::parseMDNodeTail(MDNode *&N) { | |||
3735 | // !{ ... } | |||
3736 | if (Lex.getKind() == lltok::lbrace) | |||
3737 | return parseMDTuple(N); | |||
3738 | ||||
3739 | // !42 | |||
3740 | return parseMDNodeID(N); | |||
3741 | } | |||
3742 | ||||
3743 | namespace { | |||
3744 | ||||
3745 | /// Structure to represent an optional metadata field. | |||
3746 | template <class FieldTy> struct MDFieldImpl { | |||
3747 | typedef MDFieldImpl ImplTy; | |||
3748 | FieldTy Val; | |||
3749 | bool Seen; | |||
3750 | ||||
3751 | void assign(FieldTy Val) { | |||
3752 | Seen = true; | |||
3753 | this->Val = std::move(Val); | |||
3754 | } | |||
3755 | ||||
3756 | explicit MDFieldImpl(FieldTy Default) | |||
3757 | : Val(std::move(Default)), Seen(false) {} | |||
3758 | }; | |||
3759 | ||||
3760 | /// Structure to represent an optional metadata field that | |||
3761 | /// can be of either type (A or B) and encapsulates the | |||
3762 | /// MD<typeofA>Field and MD<typeofB>Field structs, so not | |||
3763 | /// to reimplement the specifics for representing each Field. | |||
3764 | template <class FieldTypeA, class FieldTypeB> struct MDEitherFieldImpl { | |||
3765 | typedef MDEitherFieldImpl<FieldTypeA, FieldTypeB> ImplTy; | |||
3766 | FieldTypeA A; | |||
3767 | FieldTypeB B; | |||
3768 | bool Seen; | |||
3769 | ||||
3770 | enum { | |||
3771 | IsInvalid = 0, | |||
3772 | IsTypeA = 1, | |||
3773 | IsTypeB = 2 | |||
3774 | } WhatIs; | |||
3775 | ||||
3776 | void assign(FieldTypeA A) { | |||
3777 | Seen = true; | |||
3778 | this->A = std::move(A); | |||
3779 | WhatIs = IsTypeA; | |||
3780 | } | |||
3781 | ||||
3782 | void assign(FieldTypeB B) { | |||
3783 | Seen = true; | |||
3784 | this->B = std::move(B); | |||
3785 | WhatIs = IsTypeB; | |||
3786 | } | |||
3787 | ||||
3788 | explicit MDEitherFieldImpl(FieldTypeA DefaultA, FieldTypeB DefaultB) | |||
3789 | : A(std::move(DefaultA)), B(std::move(DefaultB)), Seen(false), | |||
3790 | WhatIs(IsInvalid) {} | |||
3791 | }; | |||
3792 | ||||
3793 | struct MDUnsignedField : public MDFieldImpl<uint64_t> { | |||
3794 | uint64_t Max; | |||
3795 | ||||
3796 | MDUnsignedField(uint64_t Default = 0, uint64_t Max = UINT64_MAX0xffffffffffffffffULL) | |||
3797 | : ImplTy(Default), Max(Max) {} | |||
3798 | }; | |||
3799 | ||||
3800 | struct LineField : public MDUnsignedField { | |||
3801 | LineField() : MDUnsignedField(0, UINT32_MAX0xffffffffU) {} | |||
3802 | }; | |||
3803 | ||||
3804 | struct ColumnField : public MDUnsignedField { | |||
3805 | ColumnField() : MDUnsignedField(0, UINT16_MAX0xffff) {} | |||
3806 | }; | |||
3807 | ||||
3808 | struct DwarfTagField : public MDUnsignedField { | |||
3809 | DwarfTagField() : MDUnsignedField(0, dwarf::DW_TAG_hi_user) {} | |||
3810 | DwarfTagField(dwarf::Tag DefaultTag) | |||
3811 | : MDUnsignedField(DefaultTag, dwarf::DW_TAG_hi_user) {} | |||
3812 | }; | |||
3813 | ||||
3814 | struct DwarfMacinfoTypeField : public MDUnsignedField { | |||
3815 | DwarfMacinfoTypeField() : MDUnsignedField(0, dwarf::DW_MACINFO_vendor_ext) {} | |||
3816 | DwarfMacinfoTypeField(dwarf::MacinfoRecordType DefaultType) | |||
3817 | : MDUnsignedField(DefaultType, dwarf::DW_MACINFO_vendor_ext) {} | |||
3818 | }; | |||
3819 | ||||
3820 | struct DwarfAttEncodingField : public MDUnsignedField { | |||
3821 | DwarfAttEncodingField() : MDUnsignedField(0, dwarf::DW_ATE_hi_user) {} | |||
3822 | }; | |||
3823 | ||||
3824 | struct DwarfVirtualityField : public MDUnsignedField { | |||
3825 | DwarfVirtualityField() : MDUnsignedField(0, dwarf::DW_VIRTUALITY_max) {} | |||
3826 | }; | |||
3827 | ||||
3828 | struct DwarfLangField : public MDUnsignedField { | |||
3829 | DwarfLangField() : MDUnsignedField(0, dwarf::DW_LANG_hi_user) {} | |||
3830 | }; | |||
3831 | ||||
3832 | struct DwarfCCField : public MDUnsignedField { | |||
3833 | DwarfCCField() : MDUnsignedField(0, dwarf::DW_CC_hi_user) {} | |||
3834 | }; | |||
3835 | ||||
3836 | struct EmissionKindField : public MDUnsignedField { | |||
3837 | EmissionKindField() : MDUnsignedField(0, DICompileUnit::LastEmissionKind) {} | |||
3838 | }; | |||
3839 | ||||
3840 | struct NameTableKindField : public MDUnsignedField { | |||
3841 | NameTableKindField() | |||
3842 | : MDUnsignedField( | |||
3843 | 0, (unsigned) | |||
3844 | DICompileUnit::DebugNameTableKind::LastDebugNameTableKind) {} | |||
3845 | }; | |||
3846 | ||||
3847 | struct DIFlagField : public MDFieldImpl<DINode::DIFlags> { | |||
3848 | DIFlagField() : MDFieldImpl(DINode::FlagZero) {} | |||
3849 | }; | |||
3850 | ||||
3851 | struct DISPFlagField : public MDFieldImpl<DISubprogram::DISPFlags> { | |||
3852 | DISPFlagField() : MDFieldImpl(DISubprogram::SPFlagZero) {} | |||
3853 | }; | |||
3854 | ||||
3855 | struct MDAPSIntField : public MDFieldImpl<APSInt> { | |||
3856 | MDAPSIntField() : ImplTy(APSInt()) {} | |||
3857 | }; | |||
3858 | ||||
3859 | struct MDSignedField : public MDFieldImpl<int64_t> { | |||
3860 | int64_t Min; | |||
3861 | int64_t Max; | |||
3862 | ||||
3863 | MDSignedField(int64_t Default = 0) | |||
3864 | : ImplTy(Default), Min(INT64_MIN(-0x7fffffffffffffffLL - 1)), Max(INT64_MAX0x7fffffffffffffffLL) {} | |||
3865 | MDSignedField(int64_t Default, int64_t Min, int64_t Max) | |||
3866 | : ImplTy(Default), Min(Min), Max(Max) {} | |||
3867 | }; | |||
3868 | ||||
3869 | struct MDBoolField : public MDFieldImpl<bool> { | |||
3870 | MDBoolField(bool Default = false) : ImplTy(Default) {} | |||
3871 | }; | |||
3872 | ||||
3873 | struct MDField : public MDFieldImpl<Metadata *> { | |||
3874 | bool AllowNull; | |||
3875 | ||||
3876 | MDField(bool AllowNull = true) : ImplTy(nullptr), AllowNull(AllowNull) {} | |||
3877 | }; | |||
3878 | ||||
3879 | struct MDConstant : public MDFieldImpl<ConstantAsMetadata *> { | |||
3880 | MDConstant() : ImplTy(nullptr) {} | |||
3881 | }; | |||
3882 | ||||
3883 | struct MDStringField : public MDFieldImpl<MDString *> { | |||
3884 | bool AllowEmpty; | |||
3885 | MDStringField(bool AllowEmpty = true) | |||
3886 | : ImplTy(nullptr), AllowEmpty(AllowEmpty) {} | |||
3887 | }; | |||
3888 | ||||
3889 | struct MDFieldList : public MDFieldImpl<SmallVector<Metadata *, 4>> { | |||
3890 | MDFieldList() : ImplTy(SmallVector<Metadata *, 4>()) {} | |||
3891 | }; | |||
3892 | ||||
3893 | struct ChecksumKindField : public MDFieldImpl<DIFile::ChecksumKind> { | |||
3894 | ChecksumKindField(DIFile::ChecksumKind CSKind) : ImplTy(CSKind) {} | |||
3895 | }; | |||
3896 | ||||
3897 | struct MDSignedOrMDField : MDEitherFieldImpl<MDSignedField, MDField> { | |||
3898 | MDSignedOrMDField(int64_t Default = 0, bool AllowNull = true) | |||
3899 | : ImplTy(MDSignedField(Default), MDField(AllowNull)) {} | |||
3900 | ||||
3901 | MDSignedOrMDField(int64_t Default, int64_t Min, int64_t Max, | |||
3902 | bool AllowNull = true) | |||
3903 | : ImplTy(MDSignedField(Default, Min, Max), MDField(AllowNull)) {} | |||
3904 | ||||
3905 | bool isMDSignedField() const { return WhatIs == IsTypeA; } | |||
3906 | bool isMDField() const { return WhatIs == IsTypeB; } | |||
3907 | int64_t getMDSignedValue() const { | |||
3908 | assert(isMDSignedField() && "Wrong field type")((void)0); | |||
3909 | return A.Val; | |||
3910 | } | |||
3911 | Metadata *getMDFieldValue() const { | |||
3912 | assert(isMDField() && "Wrong field type")((void)0); | |||
3913 | return B.Val; | |||
3914 | } | |||
3915 | }; | |||
3916 | ||||
3917 | struct MDSignedOrUnsignedField | |||
3918 | : MDEitherFieldImpl<MDSignedField, MDUnsignedField> { | |||
3919 | MDSignedOrUnsignedField() : ImplTy(MDSignedField(0), MDUnsignedField(0)) {} | |||
3920 | ||||
3921 | bool isMDSignedField() const { return WhatIs == IsTypeA; } | |||
3922 | bool isMDUnsignedField() const { return WhatIs == IsTypeB; } | |||
3923 | int64_t getMDSignedValue() const { | |||
3924 | assert(isMDSignedField() && "Wrong field type")((void)0); | |||
3925 | return A.Val; | |||
3926 | } | |||
3927 | uint64_t getMDUnsignedValue() const { | |||
3928 | assert(isMDUnsignedField() && "Wrong field type")((void)0); | |||
3929 | return B.Val; | |||
3930 | } | |||
3931 | }; | |||
3932 | ||||
3933 | } // end anonymous namespace | |||
3934 | ||||
3935 | namespace llvm { | |||
3936 | ||||
3937 | template <> | |||
3938 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, MDAPSIntField &Result) { | |||
3939 | if (Lex.getKind() != lltok::APSInt) | |||
3940 | return tokError("expected integer"); | |||
3941 | ||||
3942 | Result.assign(Lex.getAPSIntVal()); | |||
3943 | Lex.Lex(); | |||
3944 | return false; | |||
3945 | } | |||
3946 | ||||
3947 | template <> | |||
3948 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, | |||
3949 | MDUnsignedField &Result) { | |||
3950 | if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned()) | |||
3951 | return tokError("expected unsigned integer"); | |||
3952 | ||||
3953 | auto &U = Lex.getAPSIntVal(); | |||
3954 | if (U.ugt(Result.Max)) | |||
3955 | return tokError("value for '" + Name + "' too large, limit is " + | |||
3956 | Twine(Result.Max)); | |||
3957 | Result.assign(U.getZExtValue()); | |||
3958 | assert(Result.Val <= Result.Max && "Expected value in range")((void)0); | |||
3959 | Lex.Lex(); | |||
3960 | return false; | |||
3961 | } | |||
3962 | ||||
3963 | template <> | |||
3964 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, LineField &Result) { | |||
3965 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); | |||
3966 | } | |||
3967 | template <> | |||
3968 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, ColumnField &Result) { | |||
3969 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); | |||
3970 | } | |||
3971 | ||||
3972 | template <> | |||
3973 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, DwarfTagField &Result) { | |||
3974 | if (Lex.getKind() == lltok::APSInt) | |||
3975 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); | |||
3976 | ||||
3977 | if (Lex.getKind() != lltok::DwarfTag) | |||
3978 | return tokError("expected DWARF tag"); | |||
3979 | ||||
3980 | unsigned Tag = dwarf::getTag(Lex.getStrVal()); | |||
3981 | if (Tag == dwarf::DW_TAG_invalid) | |||
3982 | return tokError("invalid DWARF tag" + Twine(" '") + Lex.getStrVal() + "'"); | |||
3983 | assert(Tag <= Result.Max && "Expected valid DWARF tag")((void)0); | |||
3984 | ||||
3985 | Result.assign(Tag); | |||
3986 | Lex.Lex(); | |||
3987 | return false; | |||
3988 | } | |||
3989 | ||||
3990 | template <> | |||
3991 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, | |||
3992 | DwarfMacinfoTypeField &Result) { | |||
3993 | if (Lex.getKind() == lltok::APSInt) | |||
3994 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); | |||
3995 | ||||
3996 | if (Lex.getKind() != lltok::DwarfMacinfo) | |||
3997 | return tokError("expected DWARF macinfo type"); | |||
3998 | ||||
3999 | unsigned Macinfo = dwarf::getMacinfo(Lex.getStrVal()); | |||
4000 | if (Macinfo == dwarf::DW_MACINFO_invalid) | |||
4001 | return tokError("invalid DWARF macinfo type" + Twine(" '") + | |||
4002 | Lex.getStrVal() + "'"); | |||
4003 | assert(Macinfo <= Result.Max && "Expected valid DWARF macinfo type")((void)0); | |||
4004 | ||||
4005 | Result.assign(Macinfo); | |||
4006 | Lex.Lex(); | |||
4007 | return false; | |||
4008 | } | |||
4009 | ||||
4010 | template <> | |||
4011 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, | |||
4012 | DwarfVirtualityField &Result) { | |||
4013 | if (Lex.getKind() == lltok::APSInt) | |||
4014 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); | |||
4015 | ||||
4016 | if (Lex.getKind() != lltok::DwarfVirtuality) | |||
4017 | return tokError("expected DWARF virtuality code"); | |||
4018 | ||||
4019 | unsigned Virtuality = dwarf::getVirtuality(Lex.getStrVal()); | |||
4020 | if (Virtuality == dwarf::DW_VIRTUALITY_invalid) | |||
4021 | return tokError("invalid DWARF virtuality code" + Twine(" '") + | |||
4022 | Lex.getStrVal() + "'"); | |||
4023 | assert(Virtuality <= Result.Max && "Expected valid DWARF virtuality code")((void)0); | |||
4024 | Result.assign(Virtuality); | |||
4025 | Lex.Lex(); | |||
4026 | return false; | |||
4027 | } | |||
4028 | ||||
4029 | template <> | |||
4030 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, DwarfLangField &Result) { | |||
4031 | if (Lex.getKind() == lltok::APSInt) | |||
4032 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); | |||
4033 | ||||
4034 | if (Lex.getKind() != lltok::DwarfLang) | |||
4035 | return tokError("expected DWARF language"); | |||
4036 | ||||
4037 | unsigned Lang = dwarf::getLanguage(Lex.getStrVal()); | |||
4038 | if (!Lang) | |||
4039 | return tokError("invalid DWARF language" + Twine(" '") + Lex.getStrVal() + | |||
4040 | "'"); | |||
4041 | assert(Lang <= Result.Max && "Expected valid DWARF language")((void)0); | |||
4042 | Result.assign(Lang); | |||
4043 | Lex.Lex(); | |||
4044 | return false; | |||
4045 | } | |||
4046 | ||||
4047 | template <> | |||
4048 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, DwarfCCField &Result) { | |||
4049 | if (Lex.getKind() == lltok::APSInt) | |||
4050 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); | |||
4051 | ||||
4052 | if (Lex.getKind() != lltok::DwarfCC) | |||
4053 | return tokError("expected DWARF calling convention"); | |||
4054 | ||||
4055 | unsigned CC = dwarf::getCallingConvention(Lex.getStrVal()); | |||
4056 | if (!CC) | |||
4057 | return tokError("invalid DWARF calling convention" + Twine(" '") + | |||
4058 | Lex.getStrVal() + "'"); | |||
4059 | assert(CC <= Result.Max && "Expected valid DWARF calling convention")((void)0); | |||
4060 | Result.assign(CC); | |||
4061 | Lex.Lex(); | |||
4062 | return false; | |||
4063 | } | |||
4064 | ||||
4065 | template <> | |||
4066 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, | |||
4067 | EmissionKindField &Result) { | |||
4068 | if (Lex.getKind() == lltok::APSInt) | |||
4069 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); | |||
4070 | ||||
4071 | if (Lex.getKind() != lltok::EmissionKind) | |||
4072 | return tokError("expected emission kind"); | |||
4073 | ||||
4074 | auto Kind = DICompileUnit::getEmissionKind(Lex.getStrVal()); | |||
4075 | if (!Kind) | |||
4076 | return tokError("invalid emission kind" + Twine(" '") + Lex.getStrVal() + | |||
4077 | "'"); | |||
4078 | assert(*Kind <= Result.Max && "Expected valid emission kind")((void)0); | |||
4079 | Result.assign(*Kind); | |||
4080 | Lex.Lex(); | |||
4081 | return false; | |||
4082 | } | |||
4083 | ||||
4084 | template <> | |||
4085 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, | |||
4086 | NameTableKindField &Result) { | |||
4087 | if (Lex.getKind() == lltok::APSInt) | |||
4088 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); | |||
4089 | ||||
4090 | if (Lex.getKind() != lltok::NameTableKind) | |||
4091 | return tokError("expected nameTable kind"); | |||
4092 | ||||
4093 | auto Kind = DICompileUnit::getNameTableKind(Lex.getStrVal()); | |||
4094 | if (!Kind) | |||
4095 | return tokError("invalid nameTable kind" + Twine(" '") + Lex.getStrVal() + | |||
4096 | "'"); | |||
4097 | assert(((unsigned)*Kind) <= Result.Max && "Expected valid nameTable kind")((void)0); | |||
4098 | Result.assign((unsigned)*Kind); | |||
4099 | Lex.Lex(); | |||
4100 | return false; | |||
4101 | } | |||
4102 | ||||
4103 | template <> | |||
4104 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, | |||
4105 | DwarfAttEncodingField &Result) { | |||
4106 | if (Lex.getKind() == lltok::APSInt) | |||
4107 | return parseMDField(Loc, Name, static_cast<MDUnsignedField &>(Result)); | |||
4108 | ||||
4109 | if (Lex.getKind() != lltok::DwarfAttEncoding) | |||
4110 | return tokError("expected DWARF type attribute encoding"); | |||
4111 | ||||
4112 | unsigned Encoding = dwarf::getAttributeEncoding(Lex.getStrVal()); | |||
4113 | if (!Encoding) | |||
4114 | return tokError("invalid DWARF type attribute encoding" + Twine(" '") + | |||
4115 | Lex.getStrVal() + "'"); | |||
4116 | assert(Encoding <= Result.Max && "Expected valid DWARF language")((void)0); | |||
4117 | Result.assign(Encoding); | |||
4118 | Lex.Lex(); | |||
4119 | return false; | |||
4120 | } | |||
4121 | ||||
4122 | /// DIFlagField | |||
4123 | /// ::= uint32 | |||
4124 | /// ::= DIFlagVector | |||
4125 | /// ::= DIFlagVector '|' DIFlagFwdDecl '|' uint32 '|' DIFlagPublic | |||
4126 | template <> | |||
4127 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, DIFlagField &Result) { | |||
4128 | ||||
4129 | // parser for a single flag. | |||
4130 | auto parseFlag = [&](DINode::DIFlags &Val) { | |||
4131 | if (Lex.getKind() == lltok::APSInt && !Lex.getAPSIntVal().isSigned()) { | |||
4132 | uint32_t TempVal = static_cast<uint32_t>(Val); | |||
4133 | bool Res = parseUInt32(TempVal); | |||
4134 | Val = static_cast<DINode::DIFlags>(TempVal); | |||
4135 | return Res; | |||
4136 | } | |||
4137 | ||||
4138 | if (Lex.getKind() != lltok::DIFlag) | |||
4139 | return tokError("expected debug info flag"); | |||
4140 | ||||
4141 | Val = DINode::getFlag(Lex.getStrVal()); | |||
4142 | if (!Val) | |||
4143 | return tokError(Twine("invalid debug info flag flag '") + | |||
4144 | Lex.getStrVal() + "'"); | |||
4145 | Lex.Lex(); | |||
4146 | return false; | |||
4147 | }; | |||
4148 | ||||
4149 | // parse the flags and combine them together. | |||
4150 | DINode::DIFlags Combined = DINode::FlagZero; | |||
4151 | do { | |||
4152 | DINode::DIFlags Val; | |||
4153 | if (parseFlag(Val)) | |||
4154 | return true; | |||
4155 | Combined |= Val; | |||
4156 | } while (EatIfPresent(lltok::bar)); | |||
4157 | ||||
4158 | Result.assign(Combined); | |||
4159 | return false; | |||
4160 | } | |||
4161 | ||||
4162 | /// DISPFlagField | |||
4163 | /// ::= uint32 | |||
4164 | /// ::= DISPFlagVector | |||
4165 | /// ::= DISPFlagVector '|' DISPFlag* '|' uint32 | |||
4166 | template <> | |||
4167 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, DISPFlagField &Result) { | |||
4168 | ||||
4169 | // parser for a single flag. | |||
4170 | auto parseFlag = [&](DISubprogram::DISPFlags &Val) { | |||
4171 | if (Lex.getKind() == lltok::APSInt && !Lex.getAPSIntVal().isSigned()) { | |||
4172 | uint32_t TempVal = static_cast<uint32_t>(Val); | |||
4173 | bool Res = parseUInt32(TempVal); | |||
4174 | Val = static_cast<DISubprogram::DISPFlags>(TempVal); | |||
4175 | return Res; | |||
4176 | } | |||
4177 | ||||
4178 | if (Lex.getKind() != lltok::DISPFlag) | |||
4179 | return tokError("expected debug info flag"); | |||
4180 | ||||
4181 | Val = DISubprogram::getFlag(Lex.getStrVal()); | |||
4182 | if (!Val) | |||
4183 | return tokError(Twine("invalid subprogram debug info flag '") + | |||
4184 | Lex.getStrVal() + "'"); | |||
4185 | Lex.Lex(); | |||
4186 | return false; | |||
4187 | }; | |||
4188 | ||||
4189 | // parse the flags and combine them together. | |||
4190 | DISubprogram::DISPFlags Combined = DISubprogram::SPFlagZero; | |||
4191 | do { | |||
4192 | DISubprogram::DISPFlags Val; | |||
4193 | if (parseFlag(Val)) | |||
4194 | return true; | |||
4195 | Combined |= Val; | |||
4196 | } while (EatIfPresent(lltok::bar)); | |||
4197 | ||||
4198 | Result.assign(Combined); | |||
4199 | return false; | |||
4200 | } | |||
4201 | ||||
4202 | template <> | |||
4203 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, MDSignedField &Result) { | |||
4204 | if (Lex.getKind() != lltok::APSInt) | |||
4205 | return tokError("expected signed integer"); | |||
4206 | ||||
4207 | auto &S = Lex.getAPSIntVal(); | |||
4208 | if (S < Result.Min) | |||
4209 | return tokError("value for '" + Name + "' too small, limit is " + | |||
4210 | Twine(Result.Min)); | |||
4211 | if (S > Result.Max) | |||
4212 | return tokError("value for '" + Name + "' too large, limit is " + | |||
4213 | Twine(Result.Max)); | |||
4214 | Result.assign(S.getExtValue()); | |||
4215 | assert(Result.Val >= Result.Min && "Expected value in range")((void)0); | |||
4216 | assert(Result.Val <= Result.Max && "Expected value in range")((void)0); | |||
4217 | Lex.Lex(); | |||
4218 | return false; | |||
4219 | } | |||
4220 | ||||
4221 | template <> | |||
4222 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, MDBoolField &Result) { | |||
4223 | switch (Lex.getKind()) { | |||
4224 | default: | |||
4225 | return tokError("expected 'true' or 'false'"); | |||
4226 | case lltok::kw_true: | |||
4227 | Result.assign(true); | |||
4228 | break; | |||
4229 | case lltok::kw_false: | |||
4230 | Result.assign(false); | |||
4231 | break; | |||
4232 | } | |||
4233 | Lex.Lex(); | |||
4234 | return false; | |||
4235 | } | |||
4236 | ||||
4237 | template <> | |||
4238 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, MDField &Result) { | |||
4239 | if (Lex.getKind() == lltok::kw_null) { | |||
4240 | if (!Result.AllowNull) | |||
4241 | return tokError("'" + Name + "' cannot be null"); | |||
4242 | Lex.Lex(); | |||
4243 | Result.assign(nullptr); | |||
4244 | return false; | |||
4245 | } | |||
4246 | ||||
4247 | Metadata *MD; | |||
4248 | if (parseMetadata(MD, nullptr)) | |||
4249 | return true; | |||
4250 | ||||
4251 | Result.assign(MD); | |||
4252 | return false; | |||
4253 | } | |||
4254 | ||||
4255 | template <> | |||
4256 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, | |||
4257 | MDSignedOrMDField &Result) { | |||
4258 | // Try to parse a signed int. | |||
4259 | if (Lex.getKind() == lltok::APSInt) { | |||
4260 | MDSignedField Res = Result.A; | |||
4261 | if (!parseMDField(Loc, Name, Res)) { | |||
4262 | Result.assign(Res); | |||
4263 | return false; | |||
4264 | } | |||
4265 | return true; | |||
4266 | } | |||
4267 | ||||
4268 | // Otherwise, try to parse as an MDField. | |||
4269 | MDField Res = Result.B; | |||
4270 | if (!parseMDField(Loc, Name, Res)) { | |||
4271 | Result.assign(Res); | |||
4272 | return false; | |||
4273 | } | |||
4274 | ||||
4275 | return true; | |||
4276 | } | |||
4277 | ||||
4278 | template <> | |||
4279 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, MDStringField &Result) { | |||
4280 | LocTy ValueLoc = Lex.getLoc(); | |||
4281 | std::string S; | |||
4282 | if (parseStringConstant(S)) | |||
4283 | return true; | |||
4284 | ||||
4285 | if (!Result.AllowEmpty && S.empty()) | |||
4286 | return error(ValueLoc, "'" + Name + "' cannot be empty"); | |||
4287 | ||||
4288 | Result.assign(S.empty() ? nullptr : MDString::get(Context, S)); | |||
4289 | return false; | |||
4290 | } | |||
4291 | ||||
4292 | template <> | |||
4293 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, MDFieldList &Result) { | |||
4294 | SmallVector<Metadata *, 4> MDs; | |||
4295 | if (parseMDNodeVector(MDs)) | |||
4296 | return true; | |||
4297 | ||||
4298 | Result.assign(std::move(MDs)); | |||
4299 | return false; | |||
4300 | } | |||
4301 | ||||
4302 | template <> | |||
4303 | bool LLParser::parseMDField(LocTy Loc, StringRef Name, | |||
4304 | ChecksumKindField &Result) { | |||
4305 | Optional<DIFile::ChecksumKind> CSKind = | |||
4306 | DIFile::getChecksumKind(Lex.getStrVal()); | |||
4307 | ||||
4308 | if (Lex.getKind() != lltok::ChecksumKind || !CSKind) | |||
4309 | return tokError("invalid checksum kind" + Twine(" '") + Lex.getStrVal() + | |||
4310 | "'"); | |||
4311 | ||||
4312 | Result.assign(*CSKind); | |||
4313 | Lex.Lex(); | |||
4314 | return false; | |||
4315 | } | |||
4316 | ||||
4317 | } // end namespace llvm | |||
4318 | ||||
4319 | template <class ParserTy> | |||
4320 | bool LLParser::parseMDFieldsImplBody(ParserTy ParseField) { | |||
4321 | do { | |||
4322 | if (Lex.getKind() != lltok::LabelStr) | |||
4323 | return tokError("expected field label here"); | |||
4324 | ||||
4325 | if (ParseField()) | |||
4326 | return true; | |||
4327 | } while (EatIfPresent(lltok::comma)); | |||
4328 | ||||
4329 | return false; | |||
4330 | } | |||
4331 | ||||
4332 | template <class ParserTy> | |||
4333 | bool LLParser::parseMDFieldsImpl(ParserTy ParseField, LocTy &ClosingLoc) { | |||
4334 | assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata type name")((void)0); | |||
4335 | Lex.Lex(); | |||
4336 | ||||
4337 | if (parseToken(lltok::lparen, "expected '(' here")) | |||
4338 | return true; | |||
4339 | if (Lex.getKind() != lltok::rparen) | |||
4340 | if (parseMDFieldsImplBody(ParseField)) | |||
4341 | return true; | |||
4342 | ||||
4343 | ClosingLoc = Lex.getLoc(); | |||
4344 | return parseToken(lltok::rparen, "expected ')' here"); | |||
4345 | } | |||
4346 | ||||
4347 | template <class FieldTy> | |||
4348 | bool LLParser::parseMDField(StringRef Name, FieldTy &Result) { | |||
4349 | if (Result.Seen) | |||
4350 | return tokError("field '" + Name + "' cannot be specified more than once"); | |||
4351 | ||||
4352 | LocTy Loc = Lex.getLoc(); | |||
4353 | Lex.Lex(); | |||
4354 | return parseMDField(Loc, Name, Result); | |||
4355 | } | |||
4356 | ||||
4357 | bool LLParser::parseSpecializedMDNode(MDNode *&N, bool IsDistinct) { | |||
4358 | assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata type name")((void)0); | |||
4359 | ||||
4360 | #define HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS) \ | |||
4361 | if (Lex.getStrVal() == #CLASS) \ | |||
4362 | return parse##CLASS(N, IsDistinct); | |||
4363 | #include "llvm/IR/Metadata.def" | |||
4364 | ||||
4365 | return tokError("expected metadata type"); | |||
4366 | } | |||
4367 | ||||
4368 | #define DECLARE_FIELD(NAME, TYPE, INIT) TYPE NAME INIT | |||
4369 | #define NOP_FIELD(NAME, TYPE, INIT) | |||
4370 | #define REQUIRE_FIELD(NAME, TYPE, INIT) \ | |||
4371 | if (!NAME.Seen) \ | |||
4372 | return error(ClosingLoc, "missing required field '" #NAME "'"); | |||
4373 | #define PARSE_MD_FIELD(NAME, TYPE, DEFAULT) \ | |||
4374 | if (Lex.getStrVal() == #NAME) \ | |||
4375 | return parseMDField(#NAME, NAME); | |||
4376 | #define PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false) \ | |||
4377 | VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) \ | |||
4378 | do { \ | |||
4379 | LocTy ClosingLoc; \ | |||
4380 | if (parseMDFieldsImpl( \ | |||
4381 | [&]() -> bool { \ | |||
4382 | VISIT_MD_FIELDS(PARSE_MD_FIELD, PARSE_MD_FIELD) \ | |||
4383 | return tokError(Twine("invalid field '") + Lex.getStrVal() + \ | |||
4384 | "'"); \ | |||
4385 | }, \ | |||
4386 | ClosingLoc)) \ | |||
4387 | return true; \ | |||
4388 | VISIT_MD_FIELDS(NOP_FIELD, REQUIRE_FIELD) \ | |||
4389 | } while (false) | |||
4390 | #define GET_OR_DISTINCT(CLASS, ARGS)(IsDistinct ? CLASS::getDistinct ARGS : CLASS::get ARGS) \ | |||
4391 | (IsDistinct ? CLASS::getDistinct ARGS : CLASS::get ARGS) | |||
4392 | ||||
4393 | /// parseDILocationFields: | |||
4394 | /// ::= !DILocation(line: 43, column: 8, scope: !5, inlinedAt: !6, | |||
4395 | /// isImplicitCode: true) | |||
4396 | bool LLParser::parseDILocation(MDNode *&Result, bool IsDistinct) { | |||
4397 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4398 | OPTIONAL(line, LineField, ); \ | |||
4399 | OPTIONAL(column, ColumnField, ); \ | |||
4400 | REQUIRED(scope, MDField, (/* AllowNull */ false)); \ | |||
4401 | OPTIONAL(inlinedAt, MDField, ); \ | |||
4402 | OPTIONAL(isImplicitCode, MDBoolField, (false)); | |||
4403 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4404 | #undef VISIT_MD_FIELDS | |||
4405 | ||||
4406 | Result = | |||
4407 | GET_OR_DISTINCT(DILocation, (Context, line.Val, column.Val, scope.Val,(IsDistinct ? DILocation::getDistinct (Context, line.Val, column .Val, scope.Val, inlinedAt.Val, isImplicitCode.Val) : DILocation ::get (Context, line.Val, column.Val, scope.Val, inlinedAt.Val , isImplicitCode.Val)) | |||
4408 | inlinedAt.Val, isImplicitCode.Val))(IsDistinct ? DILocation::getDistinct (Context, line.Val, column .Val, scope.Val, inlinedAt.Val, isImplicitCode.Val) : DILocation ::get (Context, line.Val, column.Val, scope.Val, inlinedAt.Val , isImplicitCode.Val)); | |||
4409 | return false; | |||
4410 | } | |||
4411 | ||||
4412 | /// parseGenericDINode: | |||
4413 | /// ::= !GenericDINode(tag: 15, header: "...", operands: {...}) | |||
4414 | bool LLParser::parseGenericDINode(MDNode *&Result, bool IsDistinct) { | |||
4415 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4416 | REQUIRED(tag, DwarfTagField, ); \ | |||
4417 | OPTIONAL(header, MDStringField, ); \ | |||
4418 | OPTIONAL(operands, MDFieldList, ); | |||
4419 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4420 | #undef VISIT_MD_FIELDS | |||
4421 | ||||
4422 | Result = GET_OR_DISTINCT(GenericDINode,(IsDistinct ? GenericDINode::getDistinct (Context, tag.Val, header .Val, operands.Val) : GenericDINode::get (Context, tag.Val, header .Val, operands.Val)) | |||
4423 | (Context, tag.Val, header.Val, operands.Val))(IsDistinct ? GenericDINode::getDistinct (Context, tag.Val, header .Val, operands.Val) : GenericDINode::get (Context, tag.Val, header .Val, operands.Val)); | |||
4424 | return false; | |||
4425 | } | |||
4426 | ||||
4427 | /// parseDISubrange: | |||
4428 | /// ::= !DISubrange(count: 30, lowerBound: 2) | |||
4429 | /// ::= !DISubrange(count: !node, lowerBound: 2) | |||
4430 | /// ::= !DISubrange(lowerBound: !node1, upperBound: !node2, stride: !node3) | |||
4431 | bool LLParser::parseDISubrange(MDNode *&Result, bool IsDistinct) { | |||
4432 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4433 | OPTIONAL(count, MDSignedOrMDField, (-1, -1, INT64_MAX0x7fffffffffffffffLL, false)); \ | |||
4434 | OPTIONAL(lowerBound, MDSignedOrMDField, ); \ | |||
4435 | OPTIONAL(upperBound, MDSignedOrMDField, ); \ | |||
4436 | OPTIONAL(stride, MDSignedOrMDField, ); | |||
4437 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4438 | #undef VISIT_MD_FIELDS | |||
4439 | ||||
4440 | Metadata *Count = nullptr; | |||
4441 | Metadata *LowerBound = nullptr; | |||
4442 | Metadata *UpperBound = nullptr; | |||
4443 | Metadata *Stride = nullptr; | |||
4444 | ||||
4445 | auto convToMetadata = [&](MDSignedOrMDField Bound) -> Metadata * { | |||
4446 | if (Bound.isMDSignedField()) | |||
4447 | return ConstantAsMetadata::get(ConstantInt::getSigned( | |||
4448 | Type::getInt64Ty(Context), Bound.getMDSignedValue())); | |||
4449 | if (Bound.isMDField()) | |||
4450 | return Bound.getMDFieldValue(); | |||
4451 | return nullptr; | |||
4452 | }; | |||
4453 | ||||
4454 | Count = convToMetadata(count); | |||
4455 | LowerBound = convToMetadata(lowerBound); | |||
4456 | UpperBound = convToMetadata(upperBound); | |||
4457 | Stride = convToMetadata(stride); | |||
4458 | ||||
4459 | Result = GET_OR_DISTINCT(DISubrange,(IsDistinct ? DISubrange::getDistinct (Context, Count, LowerBound , UpperBound, Stride) : DISubrange::get (Context, Count, LowerBound , UpperBound, Stride)) | |||
4460 | (Context, Count, LowerBound, UpperBound, Stride))(IsDistinct ? DISubrange::getDistinct (Context, Count, LowerBound , UpperBound, Stride) : DISubrange::get (Context, Count, LowerBound , UpperBound, Stride)); | |||
4461 | ||||
4462 | return false; | |||
4463 | } | |||
4464 | ||||
4465 | /// parseDIGenericSubrange: | |||
4466 | /// ::= !DIGenericSubrange(lowerBound: !node1, upperBound: !node2, stride: | |||
4467 | /// !node3) | |||
4468 | bool LLParser::parseDIGenericSubrange(MDNode *&Result, bool IsDistinct) { | |||
4469 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4470 | OPTIONAL(count, MDSignedOrMDField, ); \ | |||
4471 | OPTIONAL(lowerBound, MDSignedOrMDField, ); \ | |||
4472 | OPTIONAL(upperBound, MDSignedOrMDField, ); \ | |||
4473 | OPTIONAL(stride, MDSignedOrMDField, ); | |||
4474 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4475 | #undef VISIT_MD_FIELDS | |||
4476 | ||||
4477 | auto ConvToMetadata = [&](MDSignedOrMDField Bound) -> Metadata * { | |||
4478 | if (Bound.isMDSignedField()) | |||
4479 | return DIExpression::get( | |||
4480 | Context, {dwarf::DW_OP_consts, | |||
4481 | static_cast<uint64_t>(Bound.getMDSignedValue())}); | |||
4482 | if (Bound.isMDField()) | |||
4483 | return Bound.getMDFieldValue(); | |||
4484 | return nullptr; | |||
4485 | }; | |||
4486 | ||||
4487 | Metadata *Count = ConvToMetadata(count); | |||
4488 | Metadata *LowerBound = ConvToMetadata(lowerBound); | |||
4489 | Metadata *UpperBound = ConvToMetadata(upperBound); | |||
4490 | Metadata *Stride = ConvToMetadata(stride); | |||
4491 | ||||
4492 | Result = GET_OR_DISTINCT(DIGenericSubrange,(IsDistinct ? DIGenericSubrange::getDistinct (Context, Count, LowerBound, UpperBound, Stride) : DIGenericSubrange::get (Context , Count, LowerBound, UpperBound, Stride)) | |||
4493 | (Context, Count, LowerBound, UpperBound, Stride))(IsDistinct ? DIGenericSubrange::getDistinct (Context, Count, LowerBound, UpperBound, Stride) : DIGenericSubrange::get (Context , Count, LowerBound, UpperBound, Stride)); | |||
4494 | ||||
4495 | return false; | |||
4496 | } | |||
4497 | ||||
4498 | /// parseDIEnumerator: | |||
4499 | /// ::= !DIEnumerator(value: 30, isUnsigned: true, name: "SomeKind") | |||
4500 | bool LLParser::parseDIEnumerator(MDNode *&Result, bool IsDistinct) { | |||
4501 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4502 | REQUIRED(name, MDStringField, ); \ | |||
4503 | REQUIRED(value, MDAPSIntField, ); \ | |||
4504 | OPTIONAL(isUnsigned, MDBoolField, (false)); | |||
4505 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4506 | #undef VISIT_MD_FIELDS | |||
4507 | ||||
4508 | if (isUnsigned.Val && value.Val.isNegative()) | |||
4509 | return tokError("unsigned enumerator with negative value"); | |||
4510 | ||||
4511 | APSInt Value(value.Val); | |||
4512 | // Add a leading zero so that unsigned values with the msb set are not | |||
4513 | // mistaken for negative values when used for signed enumerators. | |||
4514 | if (!isUnsigned.Val && value.Val.isUnsigned() && value.Val.isSignBitSet()) | |||
4515 | Value = Value.zext(Value.getBitWidth() + 1); | |||
4516 | ||||
4517 | Result = | |||
4518 | GET_OR_DISTINCT(DIEnumerator, (Context, Value, isUnsigned.Val, name.Val))(IsDistinct ? DIEnumerator::getDistinct (Context, Value, isUnsigned .Val, name.Val) : DIEnumerator::get (Context, Value, isUnsigned .Val, name.Val)); | |||
4519 | ||||
4520 | return false; | |||
4521 | } | |||
4522 | ||||
4523 | /// parseDIBasicType: | |||
4524 | /// ::= !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, | |||
4525 | /// encoding: DW_ATE_encoding, flags: 0) | |||
4526 | bool LLParser::parseDIBasicType(MDNode *&Result, bool IsDistinct) { | |||
4527 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4528 | OPTIONAL(tag, DwarfTagField, (dwarf::DW_TAG_base_type)); \ | |||
4529 | OPTIONAL(name, MDStringField, ); \ | |||
4530 | OPTIONAL(size, MDUnsignedField, (0, UINT64_MAX0xffffffffffffffffULL)); \ | |||
4531 | OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX0xffffffffU)); \ | |||
4532 | OPTIONAL(encoding, DwarfAttEncodingField, ); \ | |||
4533 | OPTIONAL(flags, DIFlagField, ); | |||
4534 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4535 | #undef VISIT_MD_FIELDS | |||
4536 | ||||
4537 | Result = GET_OR_DISTINCT(DIBasicType, (Context, tag.Val, name.Val, size.Val,(IsDistinct ? DIBasicType::getDistinct (Context, tag.Val, name .Val, size.Val, align.Val, encoding.Val, flags.Val) : DIBasicType ::get (Context, tag.Val, name.Val, size.Val, align.Val, encoding .Val, flags.Val)) | |||
4538 | align.Val, encoding.Val, flags.Val))(IsDistinct ? DIBasicType::getDistinct (Context, tag.Val, name .Val, size.Val, align.Val, encoding.Val, flags.Val) : DIBasicType ::get (Context, tag.Val, name.Val, size.Val, align.Val, encoding .Val, flags.Val)); | |||
4539 | return false; | |||
4540 | } | |||
4541 | ||||
4542 | /// parseDIStringType: | |||
4543 | /// ::= !DIStringType(name: "character(4)", size: 32, align: 32) | |||
4544 | bool LLParser::parseDIStringType(MDNode *&Result, bool IsDistinct) { | |||
4545 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4546 | OPTIONAL(tag, DwarfTagField, (dwarf::DW_TAG_string_type)); \ | |||
4547 | OPTIONAL(name, MDStringField, ); \ | |||
4548 | OPTIONAL(stringLength, MDField, ); \ | |||
4549 | OPTIONAL(stringLengthExpression, MDField, ); \ | |||
4550 | OPTIONAL(size, MDUnsignedField, (0, UINT64_MAX0xffffffffffffffffULL)); \ | |||
4551 | OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX0xffffffffU)); \ | |||
4552 | OPTIONAL(encoding, DwarfAttEncodingField, ); | |||
4553 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4554 | #undef VISIT_MD_FIELDS | |||
4555 | ||||
4556 | Result = GET_OR_DISTINCT(DIStringType,(IsDistinct ? DIStringType::getDistinct (Context, tag.Val, name .Val, stringLength.Val, stringLengthExpression.Val, size.Val, align.Val, encoding.Val) : DIStringType::get (Context, tag.Val , name.Val, stringLength.Val, stringLengthExpression.Val, size .Val, align.Val, encoding.Val)) | |||
4557 | (Context, tag.Val, name.Val, stringLength.Val,(IsDistinct ? DIStringType::getDistinct (Context, tag.Val, name .Val, stringLength.Val, stringLengthExpression.Val, size.Val, align.Val, encoding.Val) : DIStringType::get (Context, tag.Val , name.Val, stringLength.Val, stringLengthExpression.Val, size .Val, align.Val, encoding.Val)) | |||
4558 | stringLengthExpression.Val, size.Val, align.Val,(IsDistinct ? DIStringType::getDistinct (Context, tag.Val, name .Val, stringLength.Val, stringLengthExpression.Val, size.Val, align.Val, encoding.Val) : DIStringType::get (Context, tag.Val , name.Val, stringLength.Val, stringLengthExpression.Val, size .Val, align.Val, encoding.Val)) | |||
4559 | encoding.Val))(IsDistinct ? DIStringType::getDistinct (Context, tag.Val, name .Val, stringLength.Val, stringLengthExpression.Val, size.Val, align.Val, encoding.Val) : DIStringType::get (Context, tag.Val , name.Val, stringLength.Val, stringLengthExpression.Val, size .Val, align.Val, encoding.Val)); | |||
4560 | return false; | |||
4561 | } | |||
4562 | ||||
4563 | /// parseDIDerivedType: | |||
4564 | /// ::= !DIDerivedType(tag: DW_TAG_pointer_type, name: "int", file: !0, | |||
4565 | /// line: 7, scope: !1, baseType: !2, size: 32, | |||
4566 | /// align: 32, offset: 0, flags: 0, extraData: !3, | |||
4567 | /// dwarfAddressSpace: 3) | |||
4568 | bool LLParser::parseDIDerivedType(MDNode *&Result, bool IsDistinct) { | |||
4569 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4570 | REQUIRED(tag, DwarfTagField, ); \ | |||
4571 | OPTIONAL(name, MDStringField, ); \ | |||
4572 | OPTIONAL(file, MDField, ); \ | |||
4573 | OPTIONAL(line, LineField, ); \ | |||
4574 | OPTIONAL(scope, MDField, ); \ | |||
4575 | REQUIRED(baseType, MDField, ); \ | |||
4576 | OPTIONAL(size, MDUnsignedField, (0, UINT64_MAX0xffffffffffffffffULL)); \ | |||
4577 | OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX0xffffffffU)); \ | |||
4578 | OPTIONAL(offset, MDUnsignedField, (0, UINT64_MAX0xffffffffffffffffULL)); \ | |||
4579 | OPTIONAL(flags, DIFlagField, ); \ | |||
4580 | OPTIONAL(extraData, MDField, ); \ | |||
4581 | OPTIONAL(dwarfAddressSpace, MDUnsignedField, (UINT32_MAX0xffffffffU, UINT32_MAX0xffffffffU)); | |||
4582 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4583 | #undef VISIT_MD_FIELDS | |||
4584 | ||||
4585 | Optional<unsigned> DWARFAddressSpace; | |||
4586 | if (dwarfAddressSpace.Val != UINT32_MAX0xffffffffU) | |||
4587 | DWARFAddressSpace = dwarfAddressSpace.Val; | |||
4588 | ||||
4589 | Result = GET_OR_DISTINCT(DIDerivedType,(IsDistinct ? DIDerivedType::getDistinct (Context, tag.Val, name .Val, file.Val, line.Val, scope.Val, baseType.Val, size.Val, align .Val, offset.Val, DWARFAddressSpace, flags.Val, extraData.Val ) : DIDerivedType::get (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val, size.Val, align.Val, offset .Val, DWARFAddressSpace, flags.Val, extraData.Val)) | |||
4590 | (Context, tag.Val, name.Val, file.Val, line.Val,(IsDistinct ? DIDerivedType::getDistinct (Context, tag.Val, name .Val, file.Val, line.Val, scope.Val, baseType.Val, size.Val, align .Val, offset.Val, DWARFAddressSpace, flags.Val, extraData.Val ) : DIDerivedType::get (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val, size.Val, align.Val, offset .Val, DWARFAddressSpace, flags.Val, extraData.Val)) | |||
4591 | scope.Val, baseType.Val, size.Val, align.Val,(IsDistinct ? DIDerivedType::getDistinct (Context, tag.Val, name .Val, file.Val, line.Val, scope.Val, baseType.Val, size.Val, align .Val, offset.Val, DWARFAddressSpace, flags.Val, extraData.Val ) : DIDerivedType::get (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val, size.Val, align.Val, offset .Val, DWARFAddressSpace, flags.Val, extraData.Val)) | |||
4592 | offset.Val, DWARFAddressSpace, flags.Val,(IsDistinct ? DIDerivedType::getDistinct (Context, tag.Val, name .Val, file.Val, line.Val, scope.Val, baseType.Val, size.Val, align .Val, offset.Val, DWARFAddressSpace, flags.Val, extraData.Val ) : DIDerivedType::get (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val, size.Val, align.Val, offset .Val, DWARFAddressSpace, flags.Val, extraData.Val)) | |||
4593 | extraData.Val))(IsDistinct ? DIDerivedType::getDistinct (Context, tag.Val, name .Val, file.Val, line.Val, scope.Val, baseType.Val, size.Val, align .Val, offset.Val, DWARFAddressSpace, flags.Val, extraData.Val ) : DIDerivedType::get (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val, size.Val, align.Val, offset .Val, DWARFAddressSpace, flags.Val, extraData.Val)); | |||
4594 | return false; | |||
4595 | } | |||
4596 | ||||
4597 | bool LLParser::parseDICompositeType(MDNode *&Result, bool IsDistinct) { | |||
4598 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4599 | REQUIRED(tag, DwarfTagField, ); \ | |||
4600 | OPTIONAL(name, MDStringField, ); \ | |||
4601 | OPTIONAL(file, MDField, ); \ | |||
4602 | OPTIONAL(line, LineField, ); \ | |||
4603 | OPTIONAL(scope, MDField, ); \ | |||
4604 | OPTIONAL(baseType, MDField, ); \ | |||
4605 | OPTIONAL(size, MDUnsignedField, (0, UINT64_MAX0xffffffffffffffffULL)); \ | |||
4606 | OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX0xffffffffU)); \ | |||
4607 | OPTIONAL(offset, MDUnsignedField, (0, UINT64_MAX0xffffffffffffffffULL)); \ | |||
4608 | OPTIONAL(flags, DIFlagField, ); \ | |||
4609 | OPTIONAL(elements, MDField, ); \ | |||
4610 | OPTIONAL(runtimeLang, DwarfLangField, ); \ | |||
4611 | OPTIONAL(vtableHolder, MDField, ); \ | |||
4612 | OPTIONAL(templateParams, MDField, ); \ | |||
4613 | OPTIONAL(identifier, MDStringField, ); \ | |||
4614 | OPTIONAL(discriminator, MDField, ); \ | |||
4615 | OPTIONAL(dataLocation, MDField, ); \ | |||
4616 | OPTIONAL(associated, MDField, ); \ | |||
4617 | OPTIONAL(allocated, MDField, ); \ | |||
4618 | OPTIONAL(rank, MDSignedOrMDField, ); | |||
4619 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4620 | #undef VISIT_MD_FIELDS | |||
4621 | ||||
4622 | Metadata *Rank = nullptr; | |||
4623 | if (rank.isMDSignedField()) | |||
4624 | Rank = ConstantAsMetadata::get(ConstantInt::getSigned( | |||
4625 | Type::getInt64Ty(Context), rank.getMDSignedValue())); | |||
4626 | else if (rank.isMDField()) | |||
4627 | Rank = rank.getMDFieldValue(); | |||
4628 | ||||
4629 | // If this has an identifier try to build an ODR type. | |||
4630 | if (identifier.Val) | |||
4631 | if (auto *CT = DICompositeType::buildODRType( | |||
4632 | Context, *identifier.Val, tag.Val, name.Val, file.Val, line.Val, | |||
4633 | scope.Val, baseType.Val, size.Val, align.Val, offset.Val, flags.Val, | |||
4634 | elements.Val, runtimeLang.Val, vtableHolder.Val, templateParams.Val, | |||
4635 | discriminator.Val, dataLocation.Val, associated.Val, allocated.Val, | |||
4636 | Rank)) { | |||
4637 | Result = CT; | |||
4638 | return false; | |||
4639 | } | |||
4640 | ||||
4641 | // Create a new node, and save it in the context if it belongs in the type | |||
4642 | // map. | |||
4643 | Result = GET_OR_DISTINCT((IsDistinct ? DICompositeType::getDistinct (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val, size. Val, align.Val, offset.Val, flags.Val, elements.Val, runtimeLang .Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator .Val, dataLocation.Val, associated.Val, allocated.Val, Rank) : DICompositeType::get (Context, tag.Val, name.Val, file.Val, line .Val, scope.Val, baseType.Val, size.Val, align.Val, offset.Val , flags.Val, elements.Val, runtimeLang.Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator.Val, dataLocation .Val, associated.Val, allocated.Val, Rank)) | |||
4644 | DICompositeType,(IsDistinct ? DICompositeType::getDistinct (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val, size. Val, align.Val, offset.Val, flags.Val, elements.Val, runtimeLang .Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator .Val, dataLocation.Val, associated.Val, allocated.Val, Rank) : DICompositeType::get (Context, tag.Val, name.Val, file.Val, line .Val, scope.Val, baseType.Val, size.Val, align.Val, offset.Val , flags.Val, elements.Val, runtimeLang.Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator.Val, dataLocation .Val, associated.Val, allocated.Val, Rank)) | |||
4645 | (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val,(IsDistinct ? DICompositeType::getDistinct (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val, size. Val, align.Val, offset.Val, flags.Val, elements.Val, runtimeLang .Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator .Val, dataLocation.Val, associated.Val, allocated.Val, Rank) : DICompositeType::get (Context, tag.Val, name.Val, file.Val, line .Val, scope.Val, baseType.Val, size.Val, align.Val, offset.Val , flags.Val, elements.Val, runtimeLang.Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator.Val, dataLocation .Val, associated.Val, allocated.Val, Rank)) | |||
4646 | size.Val, align.Val, offset.Val, flags.Val, elements.Val,(IsDistinct ? DICompositeType::getDistinct (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val, size. Val, align.Val, offset.Val, flags.Val, elements.Val, runtimeLang .Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator .Val, dataLocation.Val, associated.Val, allocated.Val, Rank) : DICompositeType::get (Context, tag.Val, name.Val, file.Val, line .Val, scope.Val, baseType.Val, size.Val, align.Val, offset.Val , flags.Val, elements.Val, runtimeLang.Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator.Val, dataLocation .Val, associated.Val, allocated.Val, Rank)) | |||
4647 | runtimeLang.Val, vtableHolder.Val, templateParams.Val, identifier.Val,(IsDistinct ? DICompositeType::getDistinct (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val, size. Val, align.Val, offset.Val, flags.Val, elements.Val, runtimeLang .Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator .Val, dataLocation.Val, associated.Val, allocated.Val, Rank) : DICompositeType::get (Context, tag.Val, name.Val, file.Val, line .Val, scope.Val, baseType.Val, size.Val, align.Val, offset.Val , flags.Val, elements.Val, runtimeLang.Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator.Val, dataLocation .Val, associated.Val, allocated.Val, Rank)) | |||
4648 | discriminator.Val, dataLocation.Val, associated.Val, allocated.Val,(IsDistinct ? DICompositeType::getDistinct (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val, size. Val, align.Val, offset.Val, flags.Val, elements.Val, runtimeLang .Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator .Val, dataLocation.Val, associated.Val, allocated.Val, Rank) : DICompositeType::get (Context, tag.Val, name.Val, file.Val, line .Val, scope.Val, baseType.Val, size.Val, align.Val, offset.Val , flags.Val, elements.Val, runtimeLang.Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator.Val, dataLocation .Val, associated.Val, allocated.Val, Rank)) | |||
4649 | Rank))(IsDistinct ? DICompositeType::getDistinct (Context, tag.Val, name.Val, file.Val, line.Val, scope.Val, baseType.Val, size. Val, align.Val, offset.Val, flags.Val, elements.Val, runtimeLang .Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator .Val, dataLocation.Val, associated.Val, allocated.Val, Rank) : DICompositeType::get (Context, tag.Val, name.Val, file.Val, line .Val, scope.Val, baseType.Val, size.Val, align.Val, offset.Val , flags.Val, elements.Val, runtimeLang.Val, vtableHolder.Val, templateParams.Val, identifier.Val, discriminator.Val, dataLocation .Val, associated.Val, allocated.Val, Rank)); | |||
4650 | return false; | |||
4651 | } | |||
4652 | ||||
4653 | bool LLParser::parseDISubroutineType(MDNode *&Result, bool IsDistinct) { | |||
4654 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4655 | OPTIONAL(flags, DIFlagField, ); \ | |||
4656 | OPTIONAL(cc, DwarfCCField, ); \ | |||
4657 | REQUIRED(types, MDField, ); | |||
4658 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4659 | #undef VISIT_MD_FIELDS | |||
4660 | ||||
4661 | Result = GET_OR_DISTINCT(DISubroutineType,(IsDistinct ? DISubroutineType::getDistinct (Context, flags.Val , cc.Val, types.Val) : DISubroutineType::get (Context, flags. Val, cc.Val, types.Val)) | |||
4662 | (Context, flags.Val, cc.Val, types.Val))(IsDistinct ? DISubroutineType::getDistinct (Context, flags.Val , cc.Val, types.Val) : DISubroutineType::get (Context, flags. Val, cc.Val, types.Val)); | |||
4663 | return false; | |||
4664 | } | |||
4665 | ||||
4666 | /// parseDIFileType: | |||
4667 | /// ::= !DIFileType(filename: "path/to/file", directory: "/path/to/dir", | |||
4668 | /// checksumkind: CSK_MD5, | |||
4669 | /// checksum: "000102030405060708090a0b0c0d0e0f", | |||
4670 | /// source: "source file contents") | |||
4671 | bool LLParser::parseDIFile(MDNode *&Result, bool IsDistinct) { | |||
4672 | // The default constructed value for checksumkind is required, but will never | |||
4673 | // be used, as the parser checks if the field was actually Seen before using | |||
4674 | // the Val. | |||
4675 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4676 | REQUIRED(filename, MDStringField, ); \ | |||
4677 | REQUIRED(directory, MDStringField, ); \ | |||
4678 | OPTIONAL(checksumkind, ChecksumKindField, (DIFile::CSK_MD5)); \ | |||
4679 | OPTIONAL(checksum, MDStringField, ); \ | |||
4680 | OPTIONAL(source, MDStringField, ); | |||
4681 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4682 | #undef VISIT_MD_FIELDS | |||
4683 | ||||
4684 | Optional<DIFile::ChecksumInfo<MDString *>> OptChecksum; | |||
4685 | if (checksumkind.Seen && checksum.Seen) | |||
4686 | OptChecksum.emplace(checksumkind.Val, checksum.Val); | |||
4687 | else if (checksumkind.Seen || checksum.Seen) | |||
4688 | return Lex.Error("'checksumkind' and 'checksum' must be provided together"); | |||
4689 | ||||
4690 | Optional<MDString *> OptSource; | |||
4691 | if (source.Seen) | |||
4692 | OptSource = source.Val; | |||
4693 | Result = GET_OR_DISTINCT(DIFile, (Context, filename.Val, directory.Val,(IsDistinct ? DIFile::getDistinct (Context, filename.Val, directory .Val, OptChecksum, OptSource) : DIFile::get (Context, filename .Val, directory.Val, OptChecksum, OptSource)) | |||
4694 | OptChecksum, OptSource))(IsDistinct ? DIFile::getDistinct (Context, filename.Val, directory .Val, OptChecksum, OptSource) : DIFile::get (Context, filename .Val, directory.Val, OptChecksum, OptSource)); | |||
4695 | return false; | |||
4696 | } | |||
4697 | ||||
4698 | /// parseDICompileUnit: | |||
4699 | /// ::= !DICompileUnit(language: DW_LANG_C99, file: !0, producer: "clang", | |||
4700 | /// isOptimized: true, flags: "-O2", runtimeVersion: 1, | |||
4701 | /// splitDebugFilename: "abc.debug", | |||
4702 | /// emissionKind: FullDebug, enums: !1, retainedTypes: !2, | |||
4703 | /// globals: !4, imports: !5, macros: !6, dwoId: 0x0abcd, | |||
4704 | /// sysroot: "/", sdk: "MacOSX.sdk") | |||
4705 | bool LLParser::parseDICompileUnit(MDNode *&Result, bool IsDistinct) { | |||
4706 | if (!IsDistinct) | |||
4707 | return Lex.Error("missing 'distinct', required for !DICompileUnit"); | |||
4708 | ||||
4709 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4710 | REQUIRED(language, DwarfLangField, ); \ | |||
4711 | REQUIRED(file, MDField, (/* AllowNull */ false)); \ | |||
4712 | OPTIONAL(producer, MDStringField, ); \ | |||
4713 | OPTIONAL(isOptimized, MDBoolField, ); \ | |||
4714 | OPTIONAL(flags, MDStringField, ); \ | |||
4715 | OPTIONAL(runtimeVersion, MDUnsignedField, (0, UINT32_MAX0xffffffffU)); \ | |||
4716 | OPTIONAL(splitDebugFilename, MDStringField, ); \ | |||
4717 | OPTIONAL(emissionKind, EmissionKindField, ); \ | |||
4718 | OPTIONAL(enums, MDField, ); \ | |||
4719 | OPTIONAL(retainedTypes, MDField, ); \ | |||
4720 | OPTIONAL(globals, MDField, ); \ | |||
4721 | OPTIONAL(imports, MDField, ); \ | |||
4722 | OPTIONAL(macros, MDField, ); \ | |||
4723 | OPTIONAL(dwoId, MDUnsignedField, ); \ | |||
4724 | OPTIONAL(splitDebugInlining, MDBoolField, = true); \ | |||
4725 | OPTIONAL(debugInfoForProfiling, MDBoolField, = false); \ | |||
4726 | OPTIONAL(nameTableKind, NameTableKindField, ); \ | |||
4727 | OPTIONAL(rangesBaseAddress, MDBoolField, = false); \ | |||
4728 | OPTIONAL(sysroot, MDStringField, ); \ | |||
4729 | OPTIONAL(sdk, MDStringField, ); | |||
4730 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4731 | #undef VISIT_MD_FIELDS | |||
4732 | ||||
4733 | Result = DICompileUnit::getDistinct( | |||
4734 | Context, language.Val, file.Val, producer.Val, isOptimized.Val, flags.Val, | |||
4735 | runtimeVersion.Val, splitDebugFilename.Val, emissionKind.Val, enums.Val, | |||
4736 | retainedTypes.Val, globals.Val, imports.Val, macros.Val, dwoId.Val, | |||
4737 | splitDebugInlining.Val, debugInfoForProfiling.Val, nameTableKind.Val, | |||
4738 | rangesBaseAddress.Val, sysroot.Val, sdk.Val); | |||
4739 | return false; | |||
4740 | } | |||
4741 | ||||
4742 | /// parseDISubprogram: | |||
4743 | /// ::= !DISubprogram(scope: !0, name: "foo", linkageName: "_Zfoo", | |||
4744 | /// file: !1, line: 7, type: !2, isLocal: false, | |||
4745 | /// isDefinition: true, scopeLine: 8, containingType: !3, | |||
4746 | /// virtuality: DW_VIRTUALTIY_pure_virtual, | |||
4747 | /// virtualIndex: 10, thisAdjustment: 4, flags: 11, | |||
4748 | /// spFlags: 10, isOptimized: false, templateParams: !4, | |||
4749 | /// declaration: !5, retainedNodes: !6, thrownTypes: !7) | |||
4750 | bool LLParser::parseDISubprogram(MDNode *&Result, bool IsDistinct) { | |||
4751 | auto Loc = Lex.getLoc(); | |||
4752 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4753 | OPTIONAL(scope, MDField, ); \ | |||
4754 | OPTIONAL(name, MDStringField, ); \ | |||
4755 | OPTIONAL(linkageName, MDStringField, ); \ | |||
4756 | OPTIONAL(file, MDField, ); \ | |||
4757 | OPTIONAL(line, LineField, ); \ | |||
4758 | OPTIONAL(type, MDField, ); \ | |||
4759 | OPTIONAL(isLocal, MDBoolField, ); \ | |||
4760 | OPTIONAL(isDefinition, MDBoolField, (true)); \ | |||
4761 | OPTIONAL(scopeLine, LineField, ); \ | |||
4762 | OPTIONAL(containingType, MDField, ); \ | |||
4763 | OPTIONAL(virtuality, DwarfVirtualityField, ); \ | |||
4764 | OPTIONAL(virtualIndex, MDUnsignedField, (0, UINT32_MAX0xffffffffU)); \ | |||
4765 | OPTIONAL(thisAdjustment, MDSignedField, (0, INT32_MIN(-0x7fffffff - 1), INT32_MAX0x7fffffff)); \ | |||
4766 | OPTIONAL(flags, DIFlagField, ); \ | |||
4767 | OPTIONAL(spFlags, DISPFlagField, ); \ | |||
4768 | OPTIONAL(isOptimized, MDBoolField, ); \ | |||
4769 | OPTIONAL(unit, MDField, ); \ | |||
4770 | OPTIONAL(templateParams, MDField, ); \ | |||
4771 | OPTIONAL(declaration, MDField, ); \ | |||
4772 | OPTIONAL(retainedNodes, MDField, ); \ | |||
4773 | OPTIONAL(thrownTypes, MDField, ); | |||
4774 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4775 | #undef VISIT_MD_FIELDS | |||
4776 | ||||
4777 | // An explicit spFlags field takes precedence over individual fields in | |||
4778 | // older IR versions. | |||
4779 | DISubprogram::DISPFlags SPFlags = | |||
4780 | spFlags.Seen ? spFlags.Val | |||
4781 | : DISubprogram::toSPFlags(isLocal.Val, isDefinition.Val, | |||
4782 | isOptimized.Val, virtuality.Val); | |||
4783 | if ((SPFlags & DISubprogram::SPFlagDefinition) && !IsDistinct) | |||
4784 | return Lex.Error( | |||
4785 | Loc, | |||
4786 | "missing 'distinct', required for !DISubprogram that is a Definition"); | |||
4787 | Result = GET_OR_DISTINCT((IsDistinct ? DISubprogram::getDistinct (Context, scope.Val, name .Val, linkageName.Val, file.Val, line.Val, type.Val, scopeLine .Val, containingType.Val, virtualIndex.Val, thisAdjustment.Val , flags.Val, SPFlags, unit.Val, templateParams.Val, declaration .Val, retainedNodes.Val, thrownTypes.Val) : DISubprogram::get (Context, scope.Val, name.Val, linkageName.Val, file.Val, line .Val, type.Val, scopeLine.Val, containingType.Val, virtualIndex .Val, thisAdjustment.Val, flags.Val, SPFlags, unit.Val, templateParams .Val, declaration.Val, retainedNodes.Val, thrownTypes.Val)) | |||
4788 | DISubprogram,(IsDistinct ? DISubprogram::getDistinct (Context, scope.Val, name .Val, linkageName.Val, file.Val, line.Val, type.Val, scopeLine .Val, containingType.Val, virtualIndex.Val, thisAdjustment.Val , flags.Val, SPFlags, unit.Val, templateParams.Val, declaration .Val, retainedNodes.Val, thrownTypes.Val) : DISubprogram::get (Context, scope.Val, name.Val, linkageName.Val, file.Val, line .Val, type.Val, scopeLine.Val, containingType.Val, virtualIndex .Val, thisAdjustment.Val, flags.Val, SPFlags, unit.Val, templateParams .Val, declaration.Val, retainedNodes.Val, thrownTypes.Val)) | |||
4789 | (Context, scope.Val, name.Val, linkageName.Val, file.Val, line.Val,(IsDistinct ? DISubprogram::getDistinct (Context, scope.Val, name .Val, linkageName.Val, file.Val, line.Val, type.Val, scopeLine .Val, containingType.Val, virtualIndex.Val, thisAdjustment.Val , flags.Val, SPFlags, unit.Val, templateParams.Val, declaration .Val, retainedNodes.Val, thrownTypes.Val) : DISubprogram::get (Context, scope.Val, name.Val, linkageName.Val, file.Val, line .Val, type.Val, scopeLine.Val, containingType.Val, virtualIndex .Val, thisAdjustment.Val, flags.Val, SPFlags, unit.Val, templateParams .Val, declaration.Val, retainedNodes.Val, thrownTypes.Val)) | |||
4790 | type.Val, scopeLine.Val, containingType.Val, virtualIndex.Val,(IsDistinct ? DISubprogram::getDistinct (Context, scope.Val, name .Val, linkageName.Val, file.Val, line.Val, type.Val, scopeLine .Val, containingType.Val, virtualIndex.Val, thisAdjustment.Val , flags.Val, SPFlags, unit.Val, templateParams.Val, declaration .Val, retainedNodes.Val, thrownTypes.Val) : DISubprogram::get (Context, scope.Val, name.Val, linkageName.Val, file.Val, line .Val, type.Val, scopeLine.Val, containingType.Val, virtualIndex .Val, thisAdjustment.Val, flags.Val, SPFlags, unit.Val, templateParams .Val, declaration.Val, retainedNodes.Val, thrownTypes.Val)) | |||
4791 | thisAdjustment.Val, flags.Val, SPFlags, unit.Val, templateParams.Val,(IsDistinct ? DISubprogram::getDistinct (Context, scope.Val, name .Val, linkageName.Val, file.Val, line.Val, type.Val, scopeLine .Val, containingType.Val, virtualIndex.Val, thisAdjustment.Val , flags.Val, SPFlags, unit.Val, templateParams.Val, declaration .Val, retainedNodes.Val, thrownTypes.Val) : DISubprogram::get (Context, scope.Val, name.Val, linkageName.Val, file.Val, line .Val, type.Val, scopeLine.Val, containingType.Val, virtualIndex .Val, thisAdjustment.Val, flags.Val, SPFlags, unit.Val, templateParams .Val, declaration.Val, retainedNodes.Val, thrownTypes.Val)) | |||
4792 | declaration.Val, retainedNodes.Val, thrownTypes.Val))(IsDistinct ? DISubprogram::getDistinct (Context, scope.Val, name .Val, linkageName.Val, file.Val, line.Val, type.Val, scopeLine .Val, containingType.Val, virtualIndex.Val, thisAdjustment.Val , flags.Val, SPFlags, unit.Val, templateParams.Val, declaration .Val, retainedNodes.Val, thrownTypes.Val) : DISubprogram::get (Context, scope.Val, name.Val, linkageName.Val, file.Val, line .Val, type.Val, scopeLine.Val, containingType.Val, virtualIndex .Val, thisAdjustment.Val, flags.Val, SPFlags, unit.Val, templateParams .Val, declaration.Val, retainedNodes.Val, thrownTypes.Val)); | |||
4793 | return false; | |||
4794 | } | |||
4795 | ||||
4796 | /// parseDILexicalBlock: | |||
4797 | /// ::= !DILexicalBlock(scope: !0, file: !2, line: 7, column: 9) | |||
4798 | bool LLParser::parseDILexicalBlock(MDNode *&Result, bool IsDistinct) { | |||
4799 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4800 | REQUIRED(scope, MDField, (/* AllowNull */ false)); \ | |||
4801 | OPTIONAL(file, MDField, ); \ | |||
4802 | OPTIONAL(line, LineField, ); \ | |||
4803 | OPTIONAL(column, ColumnField, ); | |||
4804 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4805 | #undef VISIT_MD_FIELDS | |||
4806 | ||||
4807 | Result = GET_OR_DISTINCT((IsDistinct ? DILexicalBlock::getDistinct (Context, scope.Val , file.Val, line.Val, column.Val) : DILexicalBlock::get (Context , scope.Val, file.Val, line.Val, column.Val)) | |||
4808 | DILexicalBlock, (Context, scope.Val, file.Val, line.Val, column.Val))(IsDistinct ? DILexicalBlock::getDistinct (Context, scope.Val , file.Val, line.Val, column.Val) : DILexicalBlock::get (Context , scope.Val, file.Val, line.Val, column.Val)); | |||
4809 | return false; | |||
4810 | } | |||
4811 | ||||
4812 | /// parseDILexicalBlockFile: | |||
4813 | /// ::= !DILexicalBlockFile(scope: !0, file: !2, discriminator: 9) | |||
4814 | bool LLParser::parseDILexicalBlockFile(MDNode *&Result, bool IsDistinct) { | |||
4815 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4816 | REQUIRED(scope, MDField, (/* AllowNull */ false)); \ | |||
4817 | OPTIONAL(file, MDField, ); \ | |||
4818 | REQUIRED(discriminator, MDUnsignedField, (0, UINT32_MAX0xffffffffU)); | |||
4819 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4820 | #undef VISIT_MD_FIELDS | |||
4821 | ||||
4822 | Result = GET_OR_DISTINCT(DILexicalBlockFile,(IsDistinct ? DILexicalBlockFile::getDistinct (Context, scope .Val, file.Val, discriminator.Val) : DILexicalBlockFile::get ( Context, scope.Val, file.Val, discriminator.Val)) | |||
4823 | (Context, scope.Val, file.Val, discriminator.Val))(IsDistinct ? DILexicalBlockFile::getDistinct (Context, scope .Val, file.Val, discriminator.Val) : DILexicalBlockFile::get ( Context, scope.Val, file.Val, discriminator.Val)); | |||
4824 | return false; | |||
4825 | } | |||
4826 | ||||
4827 | /// parseDICommonBlock: | |||
4828 | /// ::= !DICommonBlock(scope: !0, file: !2, name: "COMMON name", line: 9) | |||
4829 | bool LLParser::parseDICommonBlock(MDNode *&Result, bool IsDistinct) { | |||
4830 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4831 | REQUIRED(scope, MDField, ); \ | |||
4832 | OPTIONAL(declaration, MDField, ); \ | |||
4833 | OPTIONAL(name, MDStringField, ); \ | |||
4834 | OPTIONAL(file, MDField, ); \ | |||
4835 | OPTIONAL(line, LineField, ); | |||
4836 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4837 | #undef VISIT_MD_FIELDS | |||
4838 | ||||
4839 | Result = GET_OR_DISTINCT(DICommonBlock,(IsDistinct ? DICommonBlock::getDistinct (Context, scope.Val, declaration.Val, name.Val, file.Val, line.Val) : DICommonBlock ::get (Context, scope.Val, declaration.Val, name.Val, file.Val , line.Val)) | |||
4840 | (Context, scope.Val, declaration.Val, name.Val,(IsDistinct ? DICommonBlock::getDistinct (Context, scope.Val, declaration.Val, name.Val, file.Val, line.Val) : DICommonBlock ::get (Context, scope.Val, declaration.Val, name.Val, file.Val , line.Val)) | |||
4841 | file.Val, line.Val))(IsDistinct ? DICommonBlock::getDistinct (Context, scope.Val, declaration.Val, name.Val, file.Val, line.Val) : DICommonBlock ::get (Context, scope.Val, declaration.Val, name.Val, file.Val , line.Val)); | |||
4842 | return false; | |||
4843 | } | |||
4844 | ||||
4845 | /// parseDINamespace: | |||
4846 | /// ::= !DINamespace(scope: !0, file: !2, name: "SomeNamespace", line: 9) | |||
4847 | bool LLParser::parseDINamespace(MDNode *&Result, bool IsDistinct) { | |||
4848 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4849 | REQUIRED(scope, MDField, ); \ | |||
4850 | OPTIONAL(name, MDStringField, ); \ | |||
4851 | OPTIONAL(exportSymbols, MDBoolField, ); | |||
4852 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4853 | #undef VISIT_MD_FIELDS | |||
4854 | ||||
4855 | Result = GET_OR_DISTINCT(DINamespace,(IsDistinct ? DINamespace::getDistinct (Context, scope.Val, name .Val, exportSymbols.Val) : DINamespace::get (Context, scope.Val , name.Val, exportSymbols.Val)) | |||
4856 | (Context, scope.Val, name.Val, exportSymbols.Val))(IsDistinct ? DINamespace::getDistinct (Context, scope.Val, name .Val, exportSymbols.Val) : DINamespace::get (Context, scope.Val , name.Val, exportSymbols.Val)); | |||
4857 | return false; | |||
4858 | } | |||
4859 | ||||
4860 | /// parseDIMacro: | |||
4861 | /// ::= !DIMacro(macinfo: type, line: 9, name: "SomeMacro", value: | |||
4862 | /// "SomeValue") | |||
4863 | bool LLParser::parseDIMacro(MDNode *&Result, bool IsDistinct) { | |||
4864 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4865 | REQUIRED(type, DwarfMacinfoTypeField, ); \ | |||
4866 | OPTIONAL(line, LineField, ); \ | |||
4867 | REQUIRED(name, MDStringField, ); \ | |||
4868 | OPTIONAL(value, MDStringField, ); | |||
4869 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4870 | #undef VISIT_MD_FIELDS | |||
4871 | ||||
4872 | Result = GET_OR_DISTINCT(DIMacro,(IsDistinct ? DIMacro::getDistinct (Context, type.Val, line.Val , name.Val, value.Val) : DIMacro::get (Context, type.Val, line .Val, name.Val, value.Val)) | |||
4873 | (Context, type.Val, line.Val, name.Val, value.Val))(IsDistinct ? DIMacro::getDistinct (Context, type.Val, line.Val , name.Val, value.Val) : DIMacro::get (Context, type.Val, line .Val, name.Val, value.Val)); | |||
4874 | return false; | |||
4875 | } | |||
4876 | ||||
4877 | /// parseDIMacroFile: | |||
4878 | /// ::= !DIMacroFile(line: 9, file: !2, nodes: !3) | |||
4879 | bool LLParser::parseDIMacroFile(MDNode *&Result, bool IsDistinct) { | |||
4880 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4881 | OPTIONAL(type, DwarfMacinfoTypeField, (dwarf::DW_MACINFO_start_file)); \ | |||
4882 | OPTIONAL(line, LineField, ); \ | |||
4883 | REQUIRED(file, MDField, ); \ | |||
4884 | OPTIONAL(nodes, MDField, ); | |||
4885 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4886 | #undef VISIT_MD_FIELDS | |||
4887 | ||||
4888 | Result = GET_OR_DISTINCT(DIMacroFile,(IsDistinct ? DIMacroFile::getDistinct (Context, type.Val, line .Val, file.Val, nodes.Val) : DIMacroFile::get (Context, type. Val, line.Val, file.Val, nodes.Val)) | |||
4889 | (Context, type.Val, line.Val, file.Val, nodes.Val))(IsDistinct ? DIMacroFile::getDistinct (Context, type.Val, line .Val, file.Val, nodes.Val) : DIMacroFile::get (Context, type. Val, line.Val, file.Val, nodes.Val)); | |||
4890 | return false; | |||
4891 | } | |||
4892 | ||||
4893 | /// parseDIModule: | |||
4894 | /// ::= !DIModule(scope: !0, name: "SomeModule", configMacros: | |||
4895 | /// "-DNDEBUG", includePath: "/usr/include", apinotes: "module.apinotes", | |||
4896 | /// file: !1, line: 4, isDecl: false) | |||
4897 | bool LLParser::parseDIModule(MDNode *&Result, bool IsDistinct) { | |||
4898 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4899 | REQUIRED(scope, MDField, ); \ | |||
4900 | REQUIRED(name, MDStringField, ); \ | |||
4901 | OPTIONAL(configMacros, MDStringField, ); \ | |||
4902 | OPTIONAL(includePath, MDStringField, ); \ | |||
4903 | OPTIONAL(apinotes, MDStringField, ); \ | |||
4904 | OPTIONAL(file, MDField, ); \ | |||
4905 | OPTIONAL(line, LineField, ); \ | |||
4906 | OPTIONAL(isDecl, MDBoolField, ); | |||
4907 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4908 | #undef VISIT_MD_FIELDS | |||
4909 | ||||
4910 | Result = GET_OR_DISTINCT(DIModule, (Context, file.Val, scope.Val, name.Val,(IsDistinct ? DIModule::getDistinct (Context, file.Val, scope .Val, name.Val, configMacros.Val, includePath.Val, apinotes.Val , line.Val, isDecl.Val) : DIModule::get (Context, file.Val, scope .Val, name.Val, configMacros.Val, includePath.Val, apinotes.Val , line.Val, isDecl.Val)) | |||
4911 | configMacros.Val, includePath.Val,(IsDistinct ? DIModule::getDistinct (Context, file.Val, scope .Val, name.Val, configMacros.Val, includePath.Val, apinotes.Val , line.Val, isDecl.Val) : DIModule::get (Context, file.Val, scope .Val, name.Val, configMacros.Val, includePath.Val, apinotes.Val , line.Val, isDecl.Val)) | |||
4912 | apinotes.Val, line.Val, isDecl.Val))(IsDistinct ? DIModule::getDistinct (Context, file.Val, scope .Val, name.Val, configMacros.Val, includePath.Val, apinotes.Val , line.Val, isDecl.Val) : DIModule::get (Context, file.Val, scope .Val, name.Val, configMacros.Val, includePath.Val, apinotes.Val , line.Val, isDecl.Val)); | |||
4913 | return false; | |||
4914 | } | |||
4915 | ||||
4916 | /// parseDITemplateTypeParameter: | |||
4917 | /// ::= !DITemplateTypeParameter(name: "Ty", type: !1, defaulted: false) | |||
4918 | bool LLParser::parseDITemplateTypeParameter(MDNode *&Result, bool IsDistinct) { | |||
4919 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4920 | OPTIONAL(name, MDStringField, ); \ | |||
4921 | REQUIRED(type, MDField, ); \ | |||
4922 | OPTIONAL(defaulted, MDBoolField, ); | |||
4923 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4924 | #undef VISIT_MD_FIELDS | |||
4925 | ||||
4926 | Result = GET_OR_DISTINCT(DITemplateTypeParameter,(IsDistinct ? DITemplateTypeParameter::getDistinct (Context, name .Val, type.Val, defaulted.Val) : DITemplateTypeParameter::get (Context, name.Val, type.Val, defaulted.Val)) | |||
4927 | (Context, name.Val, type.Val, defaulted.Val))(IsDistinct ? DITemplateTypeParameter::getDistinct (Context, name .Val, type.Val, defaulted.Val) : DITemplateTypeParameter::get (Context, name.Val, type.Val, defaulted.Val)); | |||
4928 | return false; | |||
4929 | } | |||
4930 | ||||
4931 | /// parseDITemplateValueParameter: | |||
4932 | /// ::= !DITemplateValueParameter(tag: DW_TAG_template_value_parameter, | |||
4933 | /// name: "V", type: !1, defaulted: false, | |||
4934 | /// value: i32 7) | |||
4935 | bool LLParser::parseDITemplateValueParameter(MDNode *&Result, bool IsDistinct) { | |||
4936 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4937 | OPTIONAL(tag, DwarfTagField, (dwarf::DW_TAG_template_value_parameter)); \ | |||
4938 | OPTIONAL(name, MDStringField, ); \ | |||
4939 | OPTIONAL(type, MDField, ); \ | |||
4940 | OPTIONAL(defaulted, MDBoolField, ); \ | |||
4941 | REQUIRED(value, MDField, ); | |||
4942 | ||||
4943 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4944 | #undef VISIT_MD_FIELDS | |||
4945 | ||||
4946 | Result = GET_OR_DISTINCT((IsDistinct ? DITemplateValueParameter::getDistinct (Context, tag.Val, name.Val, type.Val, defaulted.Val, value.Val) : DITemplateValueParameter ::get (Context, tag.Val, name.Val, type.Val, defaulted.Val, value .Val)) | |||
4947 | DITemplateValueParameter,(IsDistinct ? DITemplateValueParameter::getDistinct (Context, tag.Val, name.Val, type.Val, defaulted.Val, value.Val) : DITemplateValueParameter ::get (Context, tag.Val, name.Val, type.Val, defaulted.Val, value .Val)) | |||
4948 | (Context, tag.Val, name.Val, type.Val, defaulted.Val, value.Val))(IsDistinct ? DITemplateValueParameter::getDistinct (Context, tag.Val, name.Val, type.Val, defaulted.Val, value.Val) : DITemplateValueParameter ::get (Context, tag.Val, name.Val, type.Val, defaulted.Val, value .Val)); | |||
4949 | return false; | |||
4950 | } | |||
4951 | ||||
4952 | /// parseDIGlobalVariable: | |||
4953 | /// ::= !DIGlobalVariable(scope: !0, name: "foo", linkageName: "foo", | |||
4954 | /// file: !1, line: 7, type: !2, isLocal: false, | |||
4955 | /// isDefinition: true, templateParams: !3, | |||
4956 | /// declaration: !4, align: 8) | |||
4957 | bool LLParser::parseDIGlobalVariable(MDNode *&Result, bool IsDistinct) { | |||
4958 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4959 | REQUIRED(name, MDStringField, (/* AllowEmpty */ false)); \ | |||
4960 | OPTIONAL(scope, MDField, ); \ | |||
4961 | OPTIONAL(linkageName, MDStringField, ); \ | |||
4962 | OPTIONAL(file, MDField, ); \ | |||
4963 | OPTIONAL(line, LineField, ); \ | |||
4964 | OPTIONAL(type, MDField, ); \ | |||
4965 | OPTIONAL(isLocal, MDBoolField, ); \ | |||
4966 | OPTIONAL(isDefinition, MDBoolField, (true)); \ | |||
4967 | OPTIONAL(templateParams, MDField, ); \ | |||
4968 | OPTIONAL(declaration, MDField, ); \ | |||
4969 | OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX0xffffffffU)); | |||
4970 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4971 | #undef VISIT_MD_FIELDS | |||
4972 | ||||
4973 | Result = | |||
4974 | GET_OR_DISTINCT(DIGlobalVariable,(IsDistinct ? DIGlobalVariable::getDistinct (Context, scope.Val , name.Val, linkageName.Val, file.Val, line.Val, type.Val, isLocal .Val, isDefinition.Val, declaration.Val, templateParams.Val, align .Val) : DIGlobalVariable::get (Context, scope.Val, name.Val, linkageName .Val, file.Val, line.Val, type.Val, isLocal.Val, isDefinition .Val, declaration.Val, templateParams.Val, align.Val)) | |||
4975 | (Context, scope.Val, name.Val, linkageName.Val, file.Val,(IsDistinct ? DIGlobalVariable::getDistinct (Context, scope.Val , name.Val, linkageName.Val, file.Val, line.Val, type.Val, isLocal .Val, isDefinition.Val, declaration.Val, templateParams.Val, align .Val) : DIGlobalVariable::get (Context, scope.Val, name.Val, linkageName .Val, file.Val, line.Val, type.Val, isLocal.Val, isDefinition .Val, declaration.Val, templateParams.Val, align.Val)) | |||
4976 | line.Val, type.Val, isLocal.Val, isDefinition.Val,(IsDistinct ? DIGlobalVariable::getDistinct (Context, scope.Val , name.Val, linkageName.Val, file.Val, line.Val, type.Val, isLocal .Val, isDefinition.Val, declaration.Val, templateParams.Val, align .Val) : DIGlobalVariable::get (Context, scope.Val, name.Val, linkageName .Val, file.Val, line.Val, type.Val, isLocal.Val, isDefinition .Val, declaration.Val, templateParams.Val, align.Val)) | |||
4977 | declaration.Val, templateParams.Val, align.Val))(IsDistinct ? DIGlobalVariable::getDistinct (Context, scope.Val , name.Val, linkageName.Val, file.Val, line.Val, type.Val, isLocal .Val, isDefinition.Val, declaration.Val, templateParams.Val, align .Val) : DIGlobalVariable::get (Context, scope.Val, name.Val, linkageName .Val, file.Val, line.Val, type.Val, isLocal.Val, isDefinition .Val, declaration.Val, templateParams.Val, align.Val)); | |||
4978 | return false; | |||
4979 | } | |||
4980 | ||||
4981 | /// parseDILocalVariable: | |||
4982 | /// ::= !DILocalVariable(arg: 7, scope: !0, name: "foo", | |||
4983 | /// file: !1, line: 7, type: !2, arg: 2, flags: 7, | |||
4984 | /// align: 8) | |||
4985 | /// ::= !DILocalVariable(scope: !0, name: "foo", | |||
4986 | /// file: !1, line: 7, type: !2, arg: 2, flags: 7, | |||
4987 | /// align: 8) | |||
4988 | bool LLParser::parseDILocalVariable(MDNode *&Result, bool IsDistinct) { | |||
4989 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
4990 | REQUIRED(scope, MDField, (/* AllowNull */ false)); \ | |||
4991 | OPTIONAL(name, MDStringField, ); \ | |||
4992 | OPTIONAL(arg, MDUnsignedField, (0, UINT16_MAX0xffff)); \ | |||
4993 | OPTIONAL(file, MDField, ); \ | |||
4994 | OPTIONAL(line, LineField, ); \ | |||
4995 | OPTIONAL(type, MDField, ); \ | |||
4996 | OPTIONAL(flags, DIFlagField, ); \ | |||
4997 | OPTIONAL(align, MDUnsignedField, (0, UINT32_MAX0xffffffffU)); | |||
4998 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
4999 | #undef VISIT_MD_FIELDS | |||
5000 | ||||
5001 | Result = GET_OR_DISTINCT(DILocalVariable,(IsDistinct ? DILocalVariable::getDistinct (Context, scope.Val , name.Val, file.Val, line.Val, type.Val, arg.Val, flags.Val, align.Val) : DILocalVariable::get (Context, scope.Val, name. Val, file.Val, line.Val, type.Val, arg.Val, flags.Val, align. Val)) | |||
5002 | (Context, scope.Val, name.Val, file.Val, line.Val,(IsDistinct ? DILocalVariable::getDistinct (Context, scope.Val , name.Val, file.Val, line.Val, type.Val, arg.Val, flags.Val, align.Val) : DILocalVariable::get (Context, scope.Val, name. Val, file.Val, line.Val, type.Val, arg.Val, flags.Val, align. Val)) | |||
5003 | type.Val, arg.Val, flags.Val, align.Val))(IsDistinct ? DILocalVariable::getDistinct (Context, scope.Val , name.Val, file.Val, line.Val, type.Val, arg.Val, flags.Val, align.Val) : DILocalVariable::get (Context, scope.Val, name. Val, file.Val, line.Val, type.Val, arg.Val, flags.Val, align. Val)); | |||
5004 | return false; | |||
5005 | } | |||
5006 | ||||
5007 | /// parseDILabel: | |||
5008 | /// ::= !DILabel(scope: !0, name: "foo", file: !1, line: 7) | |||
5009 | bool LLParser::parseDILabel(MDNode *&Result, bool IsDistinct) { | |||
5010 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
5011 | REQUIRED(scope, MDField, (/* AllowNull */ false)); \ | |||
5012 | REQUIRED(name, MDStringField, ); \ | |||
5013 | REQUIRED(file, MDField, ); \ | |||
5014 | REQUIRED(line, LineField, ); | |||
5015 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
5016 | #undef VISIT_MD_FIELDS | |||
5017 | ||||
5018 | Result = GET_OR_DISTINCT(DILabel,(IsDistinct ? DILabel::getDistinct (Context, scope.Val, name. Val, file.Val, line.Val) : DILabel::get (Context, scope.Val, name .Val, file.Val, line.Val)) | |||
5019 | (Context, scope.Val, name.Val, file.Val, line.Val))(IsDistinct ? DILabel::getDistinct (Context, scope.Val, name. Val, file.Val, line.Val) : DILabel::get (Context, scope.Val, name .Val, file.Val, line.Val)); | |||
5020 | return false; | |||
5021 | } | |||
5022 | ||||
5023 | /// parseDIExpression: | |||
5024 | /// ::= !DIExpression(0, 7, -1) | |||
5025 | bool LLParser::parseDIExpression(MDNode *&Result, bool IsDistinct) { | |||
5026 | assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata type name")((void)0); | |||
5027 | Lex.Lex(); | |||
5028 | ||||
5029 | if (parseToken(lltok::lparen, "expected '(' here")) | |||
5030 | return true; | |||
5031 | ||||
5032 | SmallVector<uint64_t, 8> Elements; | |||
5033 | if (Lex.getKind() != lltok::rparen) | |||
5034 | do { | |||
5035 | if (Lex.getKind() == lltok::DwarfOp) { | |||
5036 | if (unsigned Op = dwarf::getOperationEncoding(Lex.getStrVal())) { | |||
5037 | Lex.Lex(); | |||
5038 | Elements.push_back(Op); | |||
5039 | continue; | |||
5040 | } | |||
5041 | return tokError(Twine("invalid DWARF op '") + Lex.getStrVal() + "'"); | |||
5042 | } | |||
5043 | ||||
5044 | if (Lex.getKind() == lltok::DwarfAttEncoding) { | |||
5045 | if (unsigned Op = dwarf::getAttributeEncoding(Lex.getStrVal())) { | |||
5046 | Lex.Lex(); | |||
5047 | Elements.push_back(Op); | |||
5048 | continue; | |||
5049 | } | |||
5050 | return tokError(Twine("invalid DWARF attribute encoding '") + | |||
5051 | Lex.getStrVal() + "'"); | |||
5052 | } | |||
5053 | ||||
5054 | if (Lex.getKind() != lltok::APSInt || Lex.getAPSIntVal().isSigned()) | |||
5055 | return tokError("expected unsigned integer"); | |||
5056 | ||||
5057 | auto &U = Lex.getAPSIntVal(); | |||
5058 | if (U.ugt(UINT64_MAX0xffffffffffffffffULL)) | |||
5059 | return tokError("element too large, limit is " + Twine(UINT64_MAX0xffffffffffffffffULL)); | |||
5060 | Elements.push_back(U.getZExtValue()); | |||
5061 | Lex.Lex(); | |||
5062 | } while (EatIfPresent(lltok::comma)); | |||
5063 | ||||
5064 | if (parseToken(lltok::rparen, "expected ')' here")) | |||
5065 | return true; | |||
5066 | ||||
5067 | Result = GET_OR_DISTINCT(DIExpression, (Context, Elements))(IsDistinct ? DIExpression::getDistinct (Context, Elements) : DIExpression::get (Context, Elements)); | |||
5068 | return false; | |||
5069 | } | |||
5070 | ||||
5071 | bool LLParser::parseDIArgList(MDNode *&Result, bool IsDistinct) { | |||
5072 | return parseDIArgList(Result, IsDistinct, nullptr); | |||
5073 | } | |||
5074 | /// ParseDIArgList: | |||
5075 | /// ::= !DIArgList(i32 7, i64 %0) | |||
5076 | bool LLParser::parseDIArgList(MDNode *&Result, bool IsDistinct, | |||
5077 | PerFunctionState *PFS) { | |||
5078 | assert(PFS && "Expected valid function state")((void)0); | |||
5079 | assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata type name")((void)0); | |||
5080 | Lex.Lex(); | |||
5081 | ||||
5082 | if (parseToken(lltok::lparen, "expected '(' here")) | |||
5083 | return true; | |||
5084 | ||||
5085 | SmallVector<ValueAsMetadata *, 4> Args; | |||
5086 | if (Lex.getKind() != lltok::rparen) | |||
5087 | do { | |||
5088 | Metadata *MD; | |||
5089 | if (parseValueAsMetadata(MD, "expected value-as-metadata operand", PFS)) | |||
5090 | return true; | |||
5091 | Args.push_back(dyn_cast<ValueAsMetadata>(MD)); | |||
5092 | } while (EatIfPresent(lltok::comma)); | |||
5093 | ||||
5094 | if (parseToken(lltok::rparen, "expected ')' here")) | |||
5095 | return true; | |||
5096 | ||||
5097 | Result = GET_OR_DISTINCT(DIArgList, (Context, Args))(IsDistinct ? DIArgList::getDistinct (Context, Args) : DIArgList ::get (Context, Args)); | |||
5098 | return false; | |||
5099 | } | |||
5100 | ||||
5101 | /// parseDIGlobalVariableExpression: | |||
5102 | /// ::= !DIGlobalVariableExpression(var: !0, expr: !1) | |||
5103 | bool LLParser::parseDIGlobalVariableExpression(MDNode *&Result, | |||
5104 | bool IsDistinct) { | |||
5105 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
5106 | REQUIRED(var, MDField, ); \ | |||
5107 | REQUIRED(expr, MDField, ); | |||
5108 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
5109 | #undef VISIT_MD_FIELDS | |||
5110 | ||||
5111 | Result = | |||
5112 | GET_OR_DISTINCT(DIGlobalVariableExpression, (Context, var.Val, expr.Val))(IsDistinct ? DIGlobalVariableExpression::getDistinct (Context , var.Val, expr.Val) : DIGlobalVariableExpression::get (Context , var.Val, expr.Val)); | |||
5113 | return false; | |||
5114 | } | |||
5115 | ||||
5116 | /// parseDIObjCProperty: | |||
5117 | /// ::= !DIObjCProperty(name: "foo", file: !1, line: 7, setter: "setFoo", | |||
5118 | /// getter: "getFoo", attributes: 7, type: !2) | |||
5119 | bool LLParser::parseDIObjCProperty(MDNode *&Result, bool IsDistinct) { | |||
5120 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
5121 | OPTIONAL(name, MDStringField, ); \ | |||
5122 | OPTIONAL(file, MDField, ); \ | |||
5123 | OPTIONAL(line, LineField, ); \ | |||
5124 | OPTIONAL(setter, MDStringField, ); \ | |||
5125 | OPTIONAL(getter, MDStringField, ); \ | |||
5126 | OPTIONAL(attributes, MDUnsignedField, (0, UINT32_MAX0xffffffffU)); \ | |||
5127 | OPTIONAL(type, MDField, ); | |||
5128 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
5129 | #undef VISIT_MD_FIELDS | |||
5130 | ||||
5131 | Result = GET_OR_DISTINCT(DIObjCProperty,(IsDistinct ? DIObjCProperty::getDistinct (Context, name.Val, file.Val, line.Val, setter.Val, getter.Val, attributes.Val, type .Val) : DIObjCProperty::get (Context, name.Val, file.Val, line .Val, setter.Val, getter.Val, attributes.Val, type.Val)) | |||
5132 | (Context, name.Val, file.Val, line.Val, setter.Val,(IsDistinct ? DIObjCProperty::getDistinct (Context, name.Val, file.Val, line.Val, setter.Val, getter.Val, attributes.Val, type .Val) : DIObjCProperty::get (Context, name.Val, file.Val, line .Val, setter.Val, getter.Val, attributes.Val, type.Val)) | |||
5133 | getter.Val, attributes.Val, type.Val))(IsDistinct ? DIObjCProperty::getDistinct (Context, name.Val, file.Val, line.Val, setter.Val, getter.Val, attributes.Val, type .Val) : DIObjCProperty::get (Context, name.Val, file.Val, line .Val, setter.Val, getter.Val, attributes.Val, type.Val)); | |||
5134 | return false; | |||
5135 | } | |||
5136 | ||||
5137 | /// parseDIImportedEntity: | |||
5138 | /// ::= !DIImportedEntity(tag: DW_TAG_imported_module, scope: !0, entity: !1, | |||
5139 | /// line: 7, name: "foo") | |||
5140 | bool LLParser::parseDIImportedEntity(MDNode *&Result, bool IsDistinct) { | |||
5141 | #define VISIT_MD_FIELDS(OPTIONAL, REQUIRED) \ | |||
5142 | REQUIRED(tag, DwarfTagField, ); \ | |||
5143 | REQUIRED(scope, MDField, ); \ | |||
5144 | OPTIONAL(entity, MDField, ); \ | |||
5145 | OPTIONAL(file, MDField, ); \ | |||
5146 | OPTIONAL(line, LineField, ); \ | |||
5147 | OPTIONAL(name, MDStringField, ); | |||
5148 | PARSE_MD_FIELDS()VISIT_MD_FIELDS(DECLARE_FIELD, DECLARE_FIELD) do { LocTy ClosingLoc ; if (parseMDFieldsImpl( [&]() -> bool { VISIT_MD_FIELDS (PARSE_MD_FIELD, PARSE_MD_FIELD) return tokError(Twine("invalid field '" ) + Lex.getStrVal() + "'"); }, ClosingLoc)) return true; VISIT_MD_FIELDS (NOP_FIELD, REQUIRE_FIELD) } while (false); | |||
5149 | #undef VISIT_MD_FIELDS | |||
5150 | ||||
5151 | Result = GET_OR_DISTINCT((IsDistinct ? DIImportedEntity::getDistinct (Context, tag.Val , scope.Val, entity.Val, file.Val, line.Val, name.Val) : DIImportedEntity ::get (Context, tag.Val, scope.Val, entity.Val, file.Val, line .Val, name.Val)) | |||
5152 | DIImportedEntity,(IsDistinct ? DIImportedEntity::getDistinct (Context, tag.Val , scope.Val, entity.Val, file.Val, line.Val, name.Val) : DIImportedEntity ::get (Context, tag.Val, scope.Val, entity.Val, file.Val, line .Val, name.Val)) | |||
5153 | (Context, tag.Val, scope.Val, entity.Val, file.Val, line.Val, name.Val))(IsDistinct ? DIImportedEntity::getDistinct (Context, tag.Val , scope.Val, entity.Val, file.Val, line.Val, name.Val) : DIImportedEntity ::get (Context, tag.Val, scope.Val, entity.Val, file.Val, line .Val, name.Val)); | |||
5154 | return false; | |||
5155 | } | |||
5156 | ||||
5157 | #undef PARSE_MD_FIELD | |||
5158 | #undef NOP_FIELD | |||
5159 | #undef REQUIRE_FIELD | |||
5160 | #undef DECLARE_FIELD | |||
5161 | ||||
5162 | /// parseMetadataAsValue | |||
5163 | /// ::= metadata i32 %local | |||
5164 | /// ::= metadata i32 @global | |||
5165 | /// ::= metadata i32 7 | |||
5166 | /// ::= metadata !0 | |||
5167 | /// ::= metadata !{...} | |||
5168 | /// ::= metadata !"string" | |||
5169 | bool LLParser::parseMetadataAsValue(Value *&V, PerFunctionState &PFS) { | |||
5170 | // Note: the type 'metadata' has already been parsed. | |||
5171 | Metadata *MD; | |||
5172 | if (parseMetadata(MD, &PFS)) | |||
5173 | return true; | |||
5174 | ||||
5175 | V = MetadataAsValue::get(Context, MD); | |||
5176 | return false; | |||
5177 | } | |||
5178 | ||||
5179 | /// parseValueAsMetadata | |||
5180 | /// ::= i32 %local | |||
5181 | /// ::= i32 @global | |||
5182 | /// ::= i32 7 | |||
5183 | bool LLParser::parseValueAsMetadata(Metadata *&MD, const Twine &TypeMsg, | |||
5184 | PerFunctionState *PFS) { | |||
5185 | Type *Ty; | |||
5186 | LocTy Loc; | |||
5187 | if (parseType(Ty, TypeMsg, Loc)) | |||
5188 | return true; | |||
5189 | if (Ty->isMetadataTy()) | |||
5190 | return error(Loc, "invalid metadata-value-metadata roundtrip"); | |||
5191 | ||||
5192 | Value *V; | |||
5193 | if (parseValue(Ty, V, PFS)) | |||
5194 | return true; | |||
5195 | ||||
5196 | MD = ValueAsMetadata::get(V); | |||
5197 | return false; | |||
5198 | } | |||
5199 | ||||
5200 | /// parseMetadata | |||
5201 | /// ::= i32 %local | |||
5202 | /// ::= i32 @global | |||
5203 | /// ::= i32 7 | |||
5204 | /// ::= !42 | |||
5205 | /// ::= !{...} | |||
5206 | /// ::= !"string" | |||
5207 | /// ::= !DILocation(...) | |||
5208 | bool LLParser::parseMetadata(Metadata *&MD, PerFunctionState *PFS) { | |||
5209 | if (Lex.getKind() == lltok::MetadataVar) { | |||
5210 | MDNode *N; | |||
5211 | // DIArgLists are a special case, as they are a list of ValueAsMetadata and | |||
5212 | // so parsing this requires a Function State. | |||
5213 | if (Lex.getStrVal() == "DIArgList") { | |||
5214 | if (parseDIArgList(N, false, PFS)) | |||
5215 | return true; | |||
5216 | } else if (parseSpecializedMDNode(N)) { | |||
5217 | return true; | |||
5218 | } | |||
5219 | MD = N; | |||
5220 | return false; | |||
5221 | } | |||
5222 | ||||
5223 | // ValueAsMetadata: | |||
5224 | // <type> <value> | |||
5225 | if (Lex.getKind() != lltok::exclaim) | |||
5226 | return parseValueAsMetadata(MD, "expected metadata operand", PFS); | |||
5227 | ||||
5228 | // '!'. | |||
5229 | assert(Lex.getKind() == lltok::exclaim && "Expected '!' here")((void)0); | |||
5230 | Lex.Lex(); | |||
5231 | ||||
5232 | // MDString: | |||
5233 | // ::= '!' STRINGCONSTANT | |||
5234 | if (Lex.getKind() == lltok::StringConstant) { | |||
5235 | MDString *S; | |||
5236 | if (parseMDString(S)) | |||
5237 | return true; | |||
5238 | MD = S; | |||
5239 | return false; | |||
5240 | } | |||
5241 | ||||
5242 | // MDNode: | |||
5243 | // !{ ... } | |||
5244 | // !7 | |||
5245 | MDNode *N; | |||
5246 | if (parseMDNodeTail(N)) | |||
5247 | return true; | |||
5248 | MD = N; | |||
5249 | return false; | |||
5250 | } | |||
5251 | ||||
5252 | //===----------------------------------------------------------------------===// | |||
5253 | // Function Parsing. | |||
5254 | //===----------------------------------------------------------------------===// | |||
5255 | ||||
5256 | bool LLParser::convertValIDToValue(Type *Ty, ValID &ID, Value *&V, | |||
5257 | PerFunctionState *PFS, bool IsCall) { | |||
5258 | if (Ty->isFunctionTy()) | |||
5259 | return error(ID.Loc, "functions are not values, refer to them as pointers"); | |||
5260 | ||||
5261 | switch (ID.Kind) { | |||
5262 | case ValID::t_LocalID: | |||
5263 | if (!PFS) | |||
5264 | return error(ID.Loc, "invalid use of function-local name"); | |||
5265 | V = PFS->getVal(ID.UIntVal, Ty, ID.Loc, IsCall); | |||
5266 | return V == nullptr; | |||
5267 | case ValID::t_LocalName: | |||
5268 | if (!PFS) | |||
5269 | return error(ID.Loc, "invalid use of function-local name"); | |||
5270 | V = PFS->getVal(ID.StrVal, Ty, ID.Loc, IsCall); | |||
5271 | return V == nullptr; | |||
5272 | case ValID::t_InlineAsm: { | |||
5273 | if (!ID.FTy || !InlineAsm::Verify(ID.FTy, ID.StrVal2)) | |||
5274 | return error(ID.Loc, "invalid type for inline asm constraint string"); | |||
5275 | V = InlineAsm::get( | |||
5276 | ID.FTy, ID.StrVal, ID.StrVal2, ID.UIntVal & 1, (ID.UIntVal >> 1) & 1, | |||
5277 | InlineAsm::AsmDialect((ID.UIntVal >> 2) & 1), (ID.UIntVal >> 3) & 1); | |||
5278 | return false; | |||
5279 | } | |||
5280 | case ValID::t_GlobalName: | |||
5281 | V = getGlobalVal(ID.StrVal, Ty, ID.Loc, IsCall); | |||
5282 | return V == nullptr; | |||
5283 | case ValID::t_GlobalID: | |||
5284 | V = getGlobalVal(ID.UIntVal, Ty, ID.Loc, IsCall); | |||
5285 | return V == nullptr; | |||
5286 | case ValID::t_APSInt: | |||
5287 | if (!Ty->isIntegerTy()) | |||
5288 | return error(ID.Loc, "integer constant must have integer type"); | |||
5289 | ID.APSIntVal = ID.APSIntVal.extOrTrunc(Ty->getPrimitiveSizeInBits()); | |||
5290 | V = ConstantInt::get(Context, ID.APSIntVal); | |||
5291 | return false; | |||
5292 | case ValID::t_APFloat: | |||
5293 | if (!Ty->isFloatingPointTy() || | |||
5294 | !ConstantFP::isValueValidForType(Ty, ID.APFloatVal)) | |||
5295 | return error(ID.Loc, "floating point constant invalid for type"); | |||
5296 | ||||
5297 | // The lexer has no type info, so builds all half, bfloat, float, and double | |||
5298 | // FP constants as double. Fix this here. Long double does not need this. | |||
5299 | if (&ID.APFloatVal.getSemantics() == &APFloat::IEEEdouble()) { | |||
5300 | // Check for signaling before potentially converting and losing that info. | |||
5301 | bool IsSNAN = ID.APFloatVal.isSignaling(); | |||
5302 | bool Ignored; | |||
5303 | if (Ty->isHalfTy()) | |||
5304 | ID.APFloatVal.convert(APFloat::IEEEhalf(), APFloat::rmNearestTiesToEven, | |||
5305 | &Ignored); | |||
5306 | else if (Ty->isBFloatTy()) | |||
5307 | ID.APFloatVal.convert(APFloat::BFloat(), APFloat::rmNearestTiesToEven, | |||
5308 | &Ignored); | |||
5309 | else if (Ty->isFloatTy()) | |||
5310 | ID.APFloatVal.convert(APFloat::IEEEsingle(), APFloat::rmNearestTiesToEven, | |||
5311 | &Ignored); | |||
5312 | if (IsSNAN) { | |||
5313 | // The convert call above may quiet an SNaN, so manufacture another | |||
5314 | // SNaN. The bitcast works because the payload (significand) parameter | |||
5315 | // is truncated to fit. | |||
5316 | APInt Payload = ID.APFloatVal.bitcastToAPInt(); | |||
5317 | ID.APFloatVal = APFloat::getSNaN(ID.APFloatVal.getSemantics(), | |||
5318 | ID.APFloatVal.isNegative(), &Payload); | |||
5319 | } | |||
5320 | } | |||
5321 | V = ConstantFP::get(Context, ID.APFloatVal); | |||
5322 | ||||
5323 | if (V->getType() != Ty) | |||
5324 | return error(ID.Loc, "floating point constant does not have type '" + | |||
5325 | getTypeString(Ty) + "'"); | |||
5326 | ||||
5327 | return false; | |||
5328 | case ValID::t_Null: | |||
5329 | if (!Ty->isPointerTy()) | |||
5330 | return error(ID.Loc, "null must be a pointer type"); | |||
5331 | V = ConstantPointerNull::get(cast<PointerType>(Ty)); | |||
5332 | return false; | |||
5333 | case ValID::t_Undef: | |||
5334 | // FIXME: LabelTy should not be a first-class type. | |||
5335 | if (!Ty->isFirstClassType() || Ty->isLabelTy()) | |||
5336 | return error(ID.Loc, "invalid type for undef constant"); | |||
5337 | V = UndefValue::get(Ty); | |||
5338 | return false; | |||
5339 | case ValID::t_EmptyArray: | |||
5340 | if (!Ty->isArrayTy() || cast<ArrayType>(Ty)->getNumElements() != 0) | |||
5341 | return error(ID.Loc, "invalid empty array initializer"); | |||
5342 | V = UndefValue::get(Ty); | |||
5343 | return false; | |||
5344 | case ValID::t_Zero: | |||
5345 | // FIXME: LabelTy should not be a first-class type. | |||
5346 | if (!Ty->isFirstClassType() || Ty->isLabelTy()) | |||
5347 | return error(ID.Loc, "invalid type for null constant"); | |||
5348 | V = Constant::getNullValue(Ty); | |||
5349 | return false; | |||
5350 | case ValID::t_None: | |||
5351 | if (!Ty->isTokenTy()) | |||
5352 | return error(ID.Loc, "invalid type for none constant"); | |||
5353 | V = Constant::getNullValue(Ty); | |||
5354 | return false; | |||
5355 | case ValID::t_Poison: | |||
5356 | // FIXME: LabelTy should not be a first-class type. | |||
5357 | if (!Ty->isFirstClassType() || Ty->isLabelTy()) | |||
5358 | return error(ID.Loc, "invalid type for poison constant"); | |||
5359 | V = PoisonValue::get(Ty); | |||
5360 | return false; | |||
5361 | case ValID::t_Constant: | |||
5362 | if (ID.ConstantVal->getType() != Ty) | |||
5363 | return error(ID.Loc, "constant expression type mismatch: got type '" + | |||
5364 | getTypeString(ID.ConstantVal->getType()) + | |||
5365 | "' but expected '" + getTypeString(Ty) + "'"); | |||
5366 | V = ID.ConstantVal; | |||
5367 | return false; | |||
5368 | case ValID::t_ConstantStruct: | |||
5369 | case ValID::t_PackedConstantStruct: | |||
5370 | if (StructType *ST = dyn_cast<StructType>(Ty)) { | |||
5371 | if (ST->getNumElements() != ID.UIntVal) | |||
5372 | return error(ID.Loc, | |||
5373 | "initializer with struct type has wrong # elements"); | |||
5374 | if (ST->isPacked() != (ID.Kind == ValID::t_PackedConstantStruct)) | |||
5375 | return error(ID.Loc, "packed'ness of initializer and type don't match"); | |||
5376 | ||||
5377 | // Verify that the elements are compatible with the structtype. | |||
5378 | for (unsigned i = 0, e = ID.UIntVal; i != e; ++i) | |||
5379 | if (ID.ConstantStructElts[i]->getType() != ST->getElementType(i)) | |||
5380 | return error( | |||
5381 | ID.Loc, | |||
5382 | "element " + Twine(i) + | |||
5383 | " of struct initializer doesn't match struct element type"); | |||
5384 | ||||
5385 | V = ConstantStruct::get( | |||
5386 | ST, makeArrayRef(ID.ConstantStructElts.get(), ID.UIntVal)); | |||
5387 | } else | |||
5388 | return error(ID.Loc, "constant expression type mismatch"); | |||
5389 | return false; | |||
5390 | } | |||
5391 | llvm_unreachable("Invalid ValID")__builtin_unreachable(); | |||
5392 | } | |||
5393 | ||||
5394 | bool LLParser::parseConstantValue(Type *Ty, Constant *&C) { | |||
5395 | C = nullptr; | |||
5396 | ValID ID; | |||
5397 | auto Loc = Lex.getLoc(); | |||
5398 | if (parseValID(ID, /*PFS=*/nullptr)) | |||
5399 | return true; | |||
5400 | switch (ID.Kind) { | |||
5401 | case ValID::t_APSInt: | |||
5402 | case ValID::t_APFloat: | |||
5403 | case ValID::t_Undef: | |||
5404 | case ValID::t_Constant: | |||
5405 | case ValID::t_ConstantStruct: | |||
5406 | case ValID::t_PackedConstantStruct: { | |||
5407 | Value *V; | |||
5408 | if (convertValIDToValue(Ty, ID, V, /*PFS=*/nullptr, /*IsCall=*/false)) | |||
5409 | return true; | |||
5410 | assert(isa<Constant>(V) && "Expected a constant value")((void)0); | |||
5411 | C = cast<Constant>(V); | |||
5412 | return false; | |||
5413 | } | |||
5414 | case ValID::t_Null: | |||
5415 | C = Constant::getNullValue(Ty); | |||
5416 | return false; | |||
5417 | default: | |||
5418 | return error(Loc, "expected a constant value"); | |||
5419 | } | |||
5420 | } | |||
5421 | ||||
5422 | bool LLParser::parseValue(Type *Ty, Value *&V, PerFunctionState *PFS) { | |||
5423 | V = nullptr; | |||
5424 | ValID ID; | |||
5425 | return parseValID(ID, PFS, Ty) || | |||
5426 | convertValIDToValue(Ty, ID, V, PFS, /*IsCall=*/false); | |||
5427 | } | |||
5428 | ||||
5429 | bool LLParser::parseTypeAndValue(Value *&V, PerFunctionState *PFS) { | |||
5430 | Type *Ty = nullptr; | |||
5431 | return parseType(Ty) || parseValue(Ty, V, PFS); | |||
5432 | } | |||
5433 | ||||
5434 | bool LLParser::parseTypeAndBasicBlock(BasicBlock *&BB, LocTy &Loc, | |||
5435 | PerFunctionState &PFS) { | |||
5436 | Value *V; | |||
5437 | Loc = Lex.getLoc(); | |||
5438 | if (parseTypeAndValue(V, PFS)) | |||
5439 | return true; | |||
5440 | if (!isa<BasicBlock>(V)) | |||
5441 | return error(Loc, "expected a basic block"); | |||
5442 | BB = cast<BasicBlock>(V); | |||
5443 | return false; | |||
5444 | } | |||
5445 | ||||
5446 | /// FunctionHeader | |||
5447 | /// ::= OptionalLinkage OptionalPreemptionSpecifier OptionalVisibility | |||
5448 | /// OptionalCallingConv OptRetAttrs OptUnnamedAddr Type GlobalName | |||
5449 | /// '(' ArgList ')' OptAddrSpace OptFuncAttrs OptSection OptionalAlign | |||
5450 | /// OptGC OptionalPrefix OptionalPrologue OptPersonalityFn | |||
5451 | bool LLParser::parseFunctionHeader(Function *&Fn, bool IsDefine) { | |||
5452 | // parse the linkage. | |||
5453 | LocTy LinkageLoc = Lex.getLoc(); | |||
5454 | unsigned Linkage; | |||
5455 | unsigned Visibility; | |||
5456 | unsigned DLLStorageClass; | |||
5457 | bool DSOLocal; | |||
5458 | AttrBuilder RetAttrs; | |||
5459 | unsigned CC; | |||
5460 | bool HasLinkage; | |||
5461 | Type *RetType = nullptr; | |||
5462 | LocTy RetTypeLoc = Lex.getLoc(); | |||
5463 | if (parseOptionalLinkage(Linkage, HasLinkage, Visibility, DLLStorageClass, | |||
5464 | DSOLocal) || | |||
5465 | parseOptionalCallingConv(CC) || parseOptionalReturnAttrs(RetAttrs) || | |||
5466 | parseType(RetType, RetTypeLoc, true /*void allowed*/)) | |||
5467 | return true; | |||
5468 | ||||
5469 | // Verify that the linkage is ok. | |||
5470 | switch ((GlobalValue::LinkageTypes)Linkage) { | |||
5471 | case GlobalValue::ExternalLinkage: | |||
5472 | break; // always ok. | |||
5473 | case GlobalValue::ExternalWeakLinkage: | |||
5474 | if (IsDefine) | |||
5475 | return error(LinkageLoc, "invalid linkage for function definition"); | |||
5476 | break; | |||
5477 | case GlobalValue::PrivateLinkage: | |||
5478 | case GlobalValue::InternalLinkage: | |||
5479 | case GlobalValue::AvailableExternallyLinkage: | |||
5480 | case GlobalValue::LinkOnceAnyLinkage: | |||
5481 | case GlobalValue::LinkOnceODRLinkage: | |||
5482 | case GlobalValue::WeakAnyLinkage: | |||
5483 | case GlobalValue::WeakODRLinkage: | |||
5484 | if (!IsDefine) | |||
5485 | return error(LinkageLoc, "invalid linkage for function declaration"); | |||
5486 | break; | |||
5487 | case GlobalValue::AppendingLinkage: | |||
5488 | case GlobalValue::CommonLinkage: | |||
5489 | return error(LinkageLoc, "invalid function linkage type"); | |||
5490 | } | |||
5491 | ||||
5492 | if (!isValidVisibilityForLinkage(Visibility, Linkage)) | |||
5493 | return error(LinkageLoc, | |||
5494 | "symbol with local linkage must have default visibility"); | |||
5495 | ||||
5496 | if (!FunctionType::isValidReturnType(RetType)) | |||
5497 | return error(RetTypeLoc, "invalid function return type"); | |||
5498 | ||||
5499 | LocTy NameLoc = Lex.getLoc(); | |||
5500 | ||||
5501 | std::string FunctionName; | |||
5502 | if (Lex.getKind() == lltok::GlobalVar) { | |||
5503 | FunctionName = Lex.getStrVal(); | |||
5504 | } else if (Lex.getKind() == lltok::GlobalID) { // @42 is ok. | |||
5505 | unsigned NameID = Lex.getUIntVal(); | |||
5506 | ||||
5507 | if (NameID != NumberedVals.size()) | |||
5508 | return tokError("function expected to be numbered '%" + | |||
5509 | Twine(NumberedVals.size()) + "'"); | |||
5510 | } else { | |||
5511 | return tokError("expected function name"); | |||
5512 | } | |||
5513 | ||||
5514 | Lex.Lex(); | |||
5515 | ||||
5516 | if (Lex.getKind() != lltok::lparen) | |||
5517 | return tokError("expected '(' in function argument list"); | |||
5518 | ||||
5519 | SmallVector<ArgInfo, 8> ArgList; | |||
5520 | bool IsVarArg; | |||
5521 | AttrBuilder FuncAttrs; | |||
5522 | std::vector<unsigned> FwdRefAttrGrps; | |||
5523 | LocTy BuiltinLoc; | |||
5524 | std::string Section; | |||
5525 | std::string Partition; | |||
5526 | MaybeAlign Alignment; | |||
5527 | std::string GC; | |||
5528 | GlobalValue::UnnamedAddr UnnamedAddr = GlobalValue::UnnamedAddr::None; | |||
5529 | unsigned AddrSpace = 0; | |||
5530 | Constant *Prefix = nullptr; | |||
5531 | Constant *Prologue = nullptr; | |||
5532 | Constant *PersonalityFn = nullptr; | |||
5533 | Comdat *C; | |||
5534 | ||||
5535 | if (parseArgumentList(ArgList, IsVarArg) || | |||
5536 | parseOptionalUnnamedAddr(UnnamedAddr) || | |||
5537 | parseOptionalProgramAddrSpace(AddrSpace) || | |||
5538 | parseFnAttributeValuePairs(FuncAttrs, FwdRefAttrGrps, false, | |||
5539 | BuiltinLoc) || | |||
5540 | (EatIfPresent(lltok::kw_section) && parseStringConstant(Section)) || | |||
5541 | (EatIfPresent(lltok::kw_partition) && parseStringConstant(Partition)) || | |||
5542 | parseOptionalComdat(FunctionName, C) || | |||
5543 | parseOptionalAlignment(Alignment) || | |||
5544 | (EatIfPresent(lltok::kw_gc) && parseStringConstant(GC)) || | |||
5545 | (EatIfPresent(lltok::kw_prefix) && parseGlobalTypeAndValue(Prefix)) || | |||
5546 | (EatIfPresent(lltok::kw_prologue) && parseGlobalTypeAndValue(Prologue)) || | |||
5547 | (EatIfPresent(lltok::kw_personality) && | |||
5548 | parseGlobalTypeAndValue(PersonalityFn))) | |||
5549 | return true; | |||
5550 | ||||
5551 | if (FuncAttrs.contains(Attribute::Builtin)) | |||
5552 | return error(BuiltinLoc, "'builtin' attribute not valid on function"); | |||
5553 | ||||
5554 | // If the alignment was parsed as an attribute, move to the alignment field. | |||
5555 | if (FuncAttrs.hasAlignmentAttr()) { | |||
5556 | Alignment = FuncAttrs.getAlignment(); | |||
5557 | FuncAttrs.removeAttribute(Attribute::Alignment); | |||
5558 | } | |||
5559 | ||||
5560 | // Okay, if we got here, the function is syntactically valid. Convert types | |||
5561 | // and do semantic checks. | |||
5562 | std::vector<Type*> ParamTypeList; | |||
5563 | SmallVector<AttributeSet, 8> Attrs; | |||
5564 | ||||
5565 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i) { | |||
5566 | ParamTypeList.push_back(ArgList[i].Ty); | |||
5567 | Attrs.push_back(ArgList[i].Attrs); | |||
5568 | } | |||
5569 | ||||
5570 | AttributeList PAL = | |||
5571 | AttributeList::get(Context, AttributeSet::get(Context, FuncAttrs), | |||
5572 | AttributeSet::get(Context, RetAttrs), Attrs); | |||
5573 | ||||
5574 | if (PAL.hasAttribute(1, Attribute::StructRet) && !RetType->isVoidTy()) | |||
5575 | return error(RetTypeLoc, "functions with 'sret' argument must return void"); | |||
5576 | ||||
5577 | FunctionType *FT = FunctionType::get(RetType, ParamTypeList, IsVarArg); | |||
5578 | PointerType *PFT = PointerType::get(FT, AddrSpace); | |||
5579 | ||||
5580 | Fn = nullptr; | |||
5581 | GlobalValue *FwdFn = nullptr; | |||
5582 | if (!FunctionName.empty()) { | |||
5583 | // If this was a definition of a forward reference, remove the definition | |||
5584 | // from the forward reference table and fill in the forward ref. | |||
5585 | auto FRVI = ForwardRefVals.find(FunctionName); | |||
5586 | if (FRVI != ForwardRefVals.end()) { | |||
5587 | FwdFn = FRVI->second.first; | |||
5588 | if (!FwdFn->getType()->isOpaque()) { | |||
5589 | if (!FwdFn->getType()->getPointerElementType()->isFunctionTy()) | |||
5590 | return error(FRVI->second.second, "invalid forward reference to " | |||
5591 | "function as global value!"); | |||
5592 | if (FwdFn->getType() != PFT) | |||
5593 | return error(FRVI->second.second, | |||
5594 | "invalid forward reference to " | |||
5595 | "function '" + | |||
5596 | FunctionName + | |||
5597 | "' with wrong type: " | |||
5598 | "expected '" + | |||
5599 | getTypeString(PFT) + "' but was '" + | |||
5600 | getTypeString(FwdFn->getType()) + "'"); | |||
5601 | } | |||
5602 | ForwardRefVals.erase(FRVI); | |||
5603 | } else if ((Fn = M->getFunction(FunctionName))) { | |||
5604 | // Reject redefinitions. | |||
5605 | return error(NameLoc, | |||
5606 | "invalid redefinition of function '" + FunctionName + "'"); | |||
5607 | } else if (M->getNamedValue(FunctionName)) { | |||
5608 | return error(NameLoc, "redefinition of function '@" + FunctionName + "'"); | |||
5609 | } | |||
5610 | ||||
5611 | } else { | |||
5612 | // If this is a definition of a forward referenced function, make sure the | |||
5613 | // types agree. | |||
5614 | auto I = ForwardRefValIDs.find(NumberedVals.size()); | |||
5615 | if (I != ForwardRefValIDs.end()) { | |||
5616 | FwdFn = cast<Function>(I->second.first); | |||
5617 | if (!FwdFn->getType()->isOpaque() && FwdFn->getType() != PFT) | |||
5618 | return error(NameLoc, "type of definition and forward reference of '@" + | |||
5619 | Twine(NumberedVals.size()) + | |||
5620 | "' disagree: " | |||
5621 | "expected '" + | |||
5622 | getTypeString(PFT) + "' but was '" + | |||
5623 | getTypeString(FwdFn->getType()) + "'"); | |||
5624 | ForwardRefValIDs.erase(I); | |||
5625 | } | |||
5626 | } | |||
5627 | ||||
5628 | Fn = Function::Create(FT, GlobalValue::ExternalLinkage, AddrSpace, | |||
5629 | FunctionName, M); | |||
5630 | ||||
5631 | assert(Fn->getAddressSpace() == AddrSpace && "Created function in wrong AS")((void)0); | |||
5632 | ||||
5633 | if (FunctionName.empty()) | |||
5634 | NumberedVals.push_back(Fn); | |||
5635 | ||||
5636 | Fn->setLinkage((GlobalValue::LinkageTypes)Linkage); | |||
5637 | maybeSetDSOLocal(DSOLocal, *Fn); | |||
5638 | Fn->setVisibility((GlobalValue::VisibilityTypes)Visibility); | |||
5639 | Fn->setDLLStorageClass((GlobalValue::DLLStorageClassTypes)DLLStorageClass); | |||
5640 | Fn->setCallingConv(CC); | |||
5641 | Fn->setAttributes(PAL); | |||
5642 | Fn->setUnnamedAddr(UnnamedAddr); | |||
5643 | Fn->setAlignment(MaybeAlign(Alignment)); | |||
5644 | Fn->setSection(Section); | |||
5645 | Fn->setPartition(Partition); | |||
5646 | Fn->setComdat(C); | |||
5647 | Fn->setPersonalityFn(PersonalityFn); | |||
5648 | if (!GC.empty()) Fn->setGC(GC); | |||
5649 | Fn->setPrefixData(Prefix); | |||
5650 | Fn->setPrologueData(Prologue); | |||
5651 | ForwardRefAttrGroups[Fn] = FwdRefAttrGrps; | |||
5652 | ||||
5653 | // Add all of the arguments we parsed to the function. | |||
5654 | Function::arg_iterator ArgIt = Fn->arg_begin(); | |||
5655 | for (unsigned i = 0, e = ArgList.size(); i != e; ++i, ++ArgIt) { | |||
5656 | // If the argument has a name, insert it into the argument symbol table. | |||
5657 | if (ArgList[i].Name.empty()) continue; | |||
5658 | ||||
5659 | // Set the name, if it conflicted, it will be auto-renamed. | |||
5660 | ArgIt->setName(ArgList[i].Name); | |||
5661 | ||||
5662 | if (ArgIt->getName() != ArgList[i].Name) | |||
5663 | return error(ArgList[i].Loc, | |||
5664 | "redefinition of argument '%" + ArgList[i].Name + "'"); | |||
5665 | } | |||
5666 | ||||
5667 | if (FwdFn) { | |||
5668 | FwdFn->replaceAllUsesWith(Fn); | |||
5669 | FwdFn->eraseFromParent(); | |||
5670 | } | |||
5671 | ||||
5672 | if (IsDefine) | |||
5673 | return false; | |||
5674 | ||||
5675 | // Check the declaration has no block address forward references. | |||
5676 | ValID ID; | |||
5677 | if (FunctionName.empty()) { | |||
5678 | ID.Kind = ValID::t_GlobalID; | |||
5679 | ID.UIntVal = NumberedVals.size() - 1; | |||
5680 | } else { | |||
5681 | ID.Kind = ValID::t_GlobalName; | |||
5682 | ID.StrVal = FunctionName; | |||
5683 | } | |||
5684 | auto Blocks = ForwardRefBlockAddresses.find(ID); | |||
5685 | if (Blocks != ForwardRefBlockAddresses.end()) | |||
5686 | return error(Blocks->first.Loc, | |||
5687 | "cannot take blockaddress inside a declaration"); | |||
5688 | return false; | |||
5689 | } | |||
5690 | ||||
5691 | bool LLParser::PerFunctionState::resolveForwardRefBlockAddresses() { | |||
5692 | ValID ID; | |||
5693 | if (FunctionNumber == -1) { | |||
5694 | ID.Kind = ValID::t_GlobalName; | |||
5695 | ID.StrVal = std::string(F.getName()); | |||
5696 | } else { | |||
5697 | ID.Kind = ValID::t_GlobalID; | |||
5698 | ID.UIntVal = FunctionNumber; | |||
5699 | } | |||
5700 | ||||
5701 | auto Blocks = P.ForwardRefBlockAddresses.find(ID); | |||
5702 | if (Blocks == P.ForwardRefBlockAddresses.end()) | |||
5703 | return false; | |||
5704 | ||||
5705 | for (const auto &I : Blocks->second) { | |||
5706 | const ValID &BBID = I.first; | |||
5707 | GlobalValue *GV = I.second; | |||
5708 | ||||
5709 | assert((BBID.Kind == ValID::t_LocalID || BBID.Kind == ValID::t_LocalName) &&((void)0) | |||
5710 | "Expected local id or name")((void)0); | |||
5711 | BasicBlock *BB; | |||
5712 | if (BBID.Kind == ValID::t_LocalName) | |||
5713 | BB = getBB(BBID.StrVal, BBID.Loc); | |||
5714 | else | |||
5715 | BB = getBB(BBID.UIntVal, BBID.Loc); | |||
5716 | if (!BB) | |||
5717 | return P.error(BBID.Loc, "referenced value is not a basic block"); | |||
5718 | ||||
5719 | Value *ResolvedVal = BlockAddress::get(&F, BB); | |||
5720 | ResolvedVal = P.checkValidVariableType(BBID.Loc, BBID.StrVal, GV->getType(), | |||
5721 | ResolvedVal, false); | |||
5722 | if (!ResolvedVal) | |||
5723 | return true; | |||
5724 | GV->replaceAllUsesWith(ResolvedVal); | |||
5725 | GV->eraseFromParent(); | |||
5726 | } | |||
5727 | ||||
5728 | P.ForwardRefBlockAddresses.erase(Blocks); | |||
5729 | return false; | |||
5730 | } | |||
5731 | ||||
5732 | /// parseFunctionBody | |||
5733 | /// ::= '{' BasicBlock+ UseListOrderDirective* '}' | |||
5734 | bool LLParser::parseFunctionBody(Function &Fn) { | |||
5735 | if (Lex.getKind() != lltok::lbrace) | |||
5736 | return tokError("expected '{' in function body"); | |||
5737 | Lex.Lex(); // eat the {. | |||
5738 | ||||
5739 | int FunctionNumber = -1; | |||
5740 | if (!Fn.hasName()) FunctionNumber = NumberedVals.size()-1; | |||
5741 | ||||
5742 | PerFunctionState PFS(*this, Fn, FunctionNumber); | |||
5743 | ||||
5744 | // Resolve block addresses and allow basic blocks to be forward-declared | |||
5745 | // within this function. | |||
5746 | if (PFS.resolveForwardRefBlockAddresses()) | |||
5747 | return true; | |||
5748 | SaveAndRestore<PerFunctionState *> ScopeExit(BlockAddressPFS, &PFS); | |||
5749 | ||||
5750 | // We need at least one basic block. | |||
5751 | if (Lex.getKind() == lltok::rbrace || Lex.getKind() == lltok::kw_uselistorder) | |||
5752 | return tokError("function body requires at least one basic block"); | |||
5753 | ||||
5754 | while (Lex.getKind() != lltok::rbrace && | |||
5755 | Lex.getKind() != lltok::kw_uselistorder) | |||
5756 | if (parseBasicBlock(PFS)) | |||
5757 | return true; | |||
5758 | ||||
5759 | while (Lex.getKind() != lltok::rbrace) | |||
5760 | if (parseUseListOrder(&PFS)) | |||
5761 | return true; | |||
5762 | ||||
5763 | // Eat the }. | |||
5764 | Lex.Lex(); | |||
5765 | ||||
5766 | // Verify function is ok. | |||
5767 | return PFS.finishFunction(); | |||
5768 | } | |||
5769 | ||||
5770 | /// parseBasicBlock | |||
5771 | /// ::= (LabelStr|LabelID)? Instruction* | |||
5772 | bool LLParser::parseBasicBlock(PerFunctionState &PFS) { | |||
5773 | // If this basic block starts out with a name, remember it. | |||
5774 | std::string Name; | |||
5775 | int NameID = -1; | |||
5776 | LocTy NameLoc = Lex.getLoc(); | |||
5777 | if (Lex.getKind() == lltok::LabelStr) { | |||
5778 | Name = Lex.getStrVal(); | |||
5779 | Lex.Lex(); | |||
5780 | } else if (Lex.getKind() == lltok::LabelID) { | |||
5781 | NameID = Lex.getUIntVal(); | |||
5782 | Lex.Lex(); | |||
5783 | } | |||
5784 | ||||
5785 | BasicBlock *BB = PFS.defineBB(Name, NameID, NameLoc); | |||
5786 | if (!BB) | |||
5787 | return true; | |||
5788 | ||||
5789 | std::string NameStr; | |||
5790 | ||||
5791 | // parse the instructions in this block until we get a terminator. | |||
5792 | Instruction *Inst; | |||
5793 | do { | |||
5794 | // This instruction may have three possibilities for a name: a) none | |||
5795 | // specified, b) name specified "%foo =", c) number specified: "%4 =". | |||
5796 | LocTy NameLoc = Lex.getLoc(); | |||
5797 | int NameID = -1; | |||
5798 | NameStr = ""; | |||
5799 | ||||
5800 | if (Lex.getKind() == lltok::LocalVarID) { | |||
5801 | NameID = Lex.getUIntVal(); | |||
5802 | Lex.Lex(); | |||
5803 | if (parseToken(lltok::equal, "expected '=' after instruction id")) | |||
5804 | return true; | |||
5805 | } else if (Lex.getKind() == lltok::LocalVar) { | |||
5806 | NameStr = Lex.getStrVal(); | |||
5807 | Lex.Lex(); | |||
5808 | if (parseToken(lltok::equal, "expected '=' after instruction name")) | |||
5809 | return true; | |||
5810 | } | |||
5811 | ||||
5812 | switch (parseInstruction(Inst, BB, PFS)) { | |||
5813 | default: | |||
5814 | llvm_unreachable("Unknown parseInstruction result!")__builtin_unreachable(); | |||
5815 | case InstError: return true; | |||
5816 | case InstNormal: | |||
5817 | BB->getInstList().push_back(Inst); | |||
5818 | ||||
5819 | // With a normal result, we check to see if the instruction is followed by | |||
5820 | // a comma and metadata. | |||
5821 | if (EatIfPresent(lltok::comma)) | |||
5822 | if (parseInstructionMetadata(*Inst)) | |||
5823 | return true; | |||
5824 | break; | |||
5825 | case InstExtraComma: | |||
5826 | BB->getInstList().push_back(Inst); | |||
5827 | ||||
5828 | // If the instruction parser ate an extra comma at the end of it, it | |||
5829 | // *must* be followed by metadata. | |||
5830 | if (parseInstructionMetadata(*Inst)) | |||
5831 | return true; | |||
5832 | break; | |||
5833 | } | |||
5834 | ||||
5835 | // Set the name on the instruction. | |||
5836 | if (PFS.setInstName(NameID, NameStr, NameLoc, Inst)) | |||
5837 | return true; | |||
5838 | } while (!Inst->isTerminator()); | |||
5839 | ||||
5840 | return false; | |||
5841 | } | |||
5842 | ||||
5843 | //===----------------------------------------------------------------------===// | |||
5844 | // Instruction Parsing. | |||
5845 | //===----------------------------------------------------------------------===// | |||
5846 | ||||
5847 | /// parseInstruction - parse one of the many different instructions. | |||
5848 | /// | |||
5849 | int LLParser::parseInstruction(Instruction *&Inst, BasicBlock *BB, | |||
5850 | PerFunctionState &PFS) { | |||
5851 | lltok::Kind Token = Lex.getKind(); | |||
5852 | if (Token == lltok::Eof) | |||
5853 | return tokError("found end of file when expecting more instructions"); | |||
5854 | LocTy Loc = Lex.getLoc(); | |||
5855 | unsigned KeywordVal = Lex.getUIntVal(); | |||
5856 | Lex.Lex(); // Eat the keyword. | |||
5857 | ||||
5858 | switch (Token) { | |||
5859 | default: | |||
5860 | return error(Loc, "expected instruction opcode"); | |||
5861 | // Terminator Instructions. | |||
5862 | case lltok::kw_unreachable: Inst = new UnreachableInst(Context); return false; | |||
5863 | case lltok::kw_ret: | |||
5864 | return parseRet(Inst, BB, PFS); | |||
5865 | case lltok::kw_br: | |||
5866 | return parseBr(Inst, PFS); | |||
5867 | case lltok::kw_switch: | |||
5868 | return parseSwitch(Inst, PFS); | |||
5869 | case lltok::kw_indirectbr: | |||
5870 | return parseIndirectBr(Inst, PFS); | |||
5871 | case lltok::kw_invoke: | |||
5872 | return parseInvoke(Inst, PFS); | |||
5873 | case lltok::kw_resume: | |||
5874 | return parseResume(Inst, PFS); | |||
5875 | case lltok::kw_cleanupret: | |||
5876 | return parseCleanupRet(Inst, PFS); | |||
5877 | case lltok::kw_catchret: | |||
5878 | return parseCatchRet(Inst, PFS); | |||
5879 | case lltok::kw_catchswitch: | |||
5880 | return parseCatchSwitch(Inst, PFS); | |||
5881 | case lltok::kw_catchpad: | |||
5882 | return parseCatchPad(Inst, PFS); | |||
5883 | case lltok::kw_cleanuppad: | |||
5884 | return parseCleanupPad(Inst, PFS); | |||
5885 | case lltok::kw_callbr: | |||
5886 | return parseCallBr(Inst, PFS); | |||
5887 | // Unary Operators. | |||
5888 | case lltok::kw_fneg: { | |||
5889 | FastMathFlags FMF = EatFastMathFlagsIfPresent(); | |||
5890 | int Res = parseUnaryOp(Inst, PFS, KeywordVal, /*IsFP*/ |