clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name CGDebugInfo.cpp -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model static -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/gnu/usr.bin/clang/libclangCodeGen/obj -resource-dir /usr/local/lib/clang/13.0.0 -I /usr/src/gnu/usr.bin/clang/libclangCodeGen/../../../llvm/clang/include -I /usr/src/gnu/usr.bin/clang/libclangCodeGen/../../../llvm/llvm/include -I /usr/src/gnu/usr.bin/clang/libclangCodeGen/../include -I /usr/src/gnu/usr.bin/clang/libclangCodeGen/obj -I /usr/src/gnu/usr.bin/clang/libclangCodeGen/obj/../include -D NDEBUG -D __STDC_LIMIT_MACROS -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D LLVM_PREFIX="/usr" -internal-isystem /usr/include/c++/v1 -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-comment -std=c++14 -fdeprecated-macro -fdebug-compilation-dir=/usr/src/gnu/usr.bin/clang/libclangCodeGen/obj -ferror-limit 19 -fvisibility-inlines-hidden -fwrapv -stack-protector 2 -fno-rtti -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/vmm/scan-build/2022-01-12-194120-40624-1 -x c++ /usr/src/gnu/usr.bin/clang/libclangCodeGen/../../../llvm/clang/lib/CodeGen/CGDebugInfo.cpp
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12 | |
13 | #include "CGDebugInfo.h" |
14 | #include "CGBlocks.h" |
15 | #include "CGCXXABI.h" |
16 | #include "CGObjCRuntime.h" |
17 | #include "CGRecordLayout.h" |
18 | #include "CodeGenFunction.h" |
19 | #include "CodeGenModule.h" |
20 | #include "ConstantEmitter.h" |
21 | #include "clang/AST/ASTContext.h" |
22 | #include "clang/AST/Attr.h" |
23 | #include "clang/AST/DeclFriend.h" |
24 | #include "clang/AST/DeclObjC.h" |
25 | #include "clang/AST/DeclTemplate.h" |
26 | #include "clang/AST/Expr.h" |
27 | #include "clang/AST/RecordLayout.h" |
28 | #include "clang/Basic/CodeGenOptions.h" |
29 | #include "clang/Basic/FileManager.h" |
30 | #include "clang/Basic/SourceManager.h" |
31 | #include "clang/Basic/Version.h" |
32 | #include "clang/Frontend/FrontendOptions.h" |
33 | #include "clang/Lex/HeaderSearchOptions.h" |
34 | #include "clang/Lex/ModuleMap.h" |
35 | #include "clang/Lex/PreprocessorOptions.h" |
36 | #include "llvm/ADT/DenseSet.h" |
37 | #include "llvm/ADT/SmallVector.h" |
38 | #include "llvm/ADT/StringExtras.h" |
39 | #include "llvm/IR/Constants.h" |
40 | #include "llvm/IR/DataLayout.h" |
41 | #include "llvm/IR/DerivedTypes.h" |
42 | #include "llvm/IR/Instructions.h" |
43 | #include "llvm/IR/Intrinsics.h" |
44 | #include "llvm/IR/Metadata.h" |
45 | #include "llvm/IR/Module.h" |
46 | #include "llvm/Support/FileSystem.h" |
47 | #include "llvm/Support/MD5.h" |
48 | #include "llvm/Support/Path.h" |
49 | #include "llvm/Support/TimeProfiler.h" |
50 | using namespace clang; |
51 | using namespace clang::CodeGen; |
52 | |
53 | static uint32_t getTypeAlignIfRequired(const Type *Ty, const ASTContext &Ctx) { |
54 | auto TI = Ctx.getTypeInfo(Ty); |
55 | return TI.AlignIsRequired ? TI.Align : 0; |
56 | } |
57 | |
58 | static uint32_t getTypeAlignIfRequired(QualType Ty, const ASTContext &Ctx) { |
59 | return getTypeAlignIfRequired(Ty.getTypePtr(), Ctx); |
60 | } |
61 | |
62 | static uint32_t getDeclAlignIfRequired(const Decl *D, const ASTContext &Ctx) { |
63 | return D->hasAttr<AlignedAttr>() ? D->getMaxAlignment() : 0; |
64 | } |
65 | |
66 | CGDebugInfo::CGDebugInfo(CodeGenModule &CGM) |
67 | : CGM(CGM), DebugKind(CGM.getCodeGenOpts().getDebugInfo()), |
68 | DebugTypeExtRefs(CGM.getCodeGenOpts().DebugTypeExtRefs), |
69 | DBuilder(CGM.getModule()) { |
70 | for (const auto &KV : CGM.getCodeGenOpts().DebugPrefixMap) |
71 | DebugPrefixMap[KV.first] = KV.second; |
72 | CreateCompileUnit(); |
73 | } |
74 | |
75 | CGDebugInfo::~CGDebugInfo() { |
76 | assert(LexicalBlockStack.empty() && |
77 | "Region stack mismatch, stack not empty!"); |
78 | } |
79 | |
80 | ApplyDebugLocation::ApplyDebugLocation(CodeGenFunction &CGF, |
81 | SourceLocation TemporaryLocation) |
82 | : CGF(&CGF) { |
83 | init(TemporaryLocation); |
84 | } |
85 | |
86 | ApplyDebugLocation::ApplyDebugLocation(CodeGenFunction &CGF, |
87 | bool DefaultToEmpty, |
88 | SourceLocation TemporaryLocation) |
89 | : CGF(&CGF) { |
90 | init(TemporaryLocation, DefaultToEmpty); |
91 | } |
92 | |
93 | void ApplyDebugLocation::init(SourceLocation TemporaryLocation, |
94 | bool DefaultToEmpty) { |
95 | auto *DI = CGF->getDebugInfo(); |
96 | if (!DI) { |
97 | CGF = nullptr; |
98 | return; |
99 | } |
100 | |
101 | OriginalLocation = CGF->Builder.getCurrentDebugLocation(); |
102 | |
103 | if (OriginalLocation && !DI->CGM.getExpressionLocationsEnabled()) |
104 | return; |
105 | |
106 | if (TemporaryLocation.isValid()) { |
107 | DI->EmitLocation(CGF->Builder, TemporaryLocation); |
108 | return; |
109 | } |
110 | |
111 | if (DefaultToEmpty) { |
112 | CGF->Builder.SetCurrentDebugLocation(llvm::DebugLoc()); |
113 | return; |
114 | } |
115 | |
116 | |
117 | assert(!DI->LexicalBlockStack.empty()); |
118 | CGF->Builder.SetCurrentDebugLocation( |
119 | llvm::DILocation::get(DI->LexicalBlockStack.back()->getContext(), 0, 0, |
120 | DI->LexicalBlockStack.back(), DI->getInlinedAt())); |
121 | } |
122 | |
123 | ApplyDebugLocation::ApplyDebugLocation(CodeGenFunction &CGF, const Expr *E) |
124 | : CGF(&CGF) { |
125 | init(E->getExprLoc()); |
126 | } |
127 | |
128 | ApplyDebugLocation::ApplyDebugLocation(CodeGenFunction &CGF, llvm::DebugLoc Loc) |
129 | : CGF(&CGF) { |
130 | if (!CGF.getDebugInfo()) { |
131 | this->CGF = nullptr; |
132 | return; |
133 | } |
134 | OriginalLocation = CGF.Builder.getCurrentDebugLocation(); |
135 | if (Loc) |
136 | CGF.Builder.SetCurrentDebugLocation(std::move(Loc)); |
137 | } |
138 | |
139 | ApplyDebugLocation::~ApplyDebugLocation() { |
140 | |
141 | |
142 | if (CGF) |
143 | CGF->Builder.SetCurrentDebugLocation(std::move(OriginalLocation)); |
144 | } |
145 | |
146 | ApplyInlineDebugLocation::ApplyInlineDebugLocation(CodeGenFunction &CGF, |
147 | GlobalDecl InlinedFn) |
148 | : CGF(&CGF) { |
149 | if (!CGF.getDebugInfo()) { |
150 | this->CGF = nullptr; |
151 | return; |
152 | } |
153 | auto &DI = *CGF.getDebugInfo(); |
154 | SavedLocation = DI.getLocation(); |
155 | assert((DI.getInlinedAt() == |
156 | CGF.Builder.getCurrentDebugLocation()->getInlinedAt()) && |
157 | "CGDebugInfo and IRBuilder are out of sync"); |
158 | |
159 | DI.EmitInlineFunctionStart(CGF.Builder, InlinedFn); |
160 | } |
161 | |
162 | ApplyInlineDebugLocation::~ApplyInlineDebugLocation() { |
163 | if (!CGF) |
164 | return; |
165 | auto &DI = *CGF->getDebugInfo(); |
166 | DI.EmitInlineFunctionEnd(CGF->Builder); |
167 | DI.EmitLocation(CGF->Builder, SavedLocation); |
168 | } |
169 | |
170 | void CGDebugInfo::setLocation(SourceLocation Loc) { |
171 | |
172 | if (Loc.isInvalid()) |
173 | return; |
174 | |
175 | CurLoc = CGM.getContext().getSourceManager().getExpansionLoc(Loc); |
176 | |
177 | |
178 | |
179 | |
180 | if (LexicalBlockStack.empty()) |
181 | return; |
182 | |
183 | SourceManager &SM = CGM.getContext().getSourceManager(); |
184 | auto *Scope = cast<llvm::DIScope>(LexicalBlockStack.back()); |
185 | PresumedLoc PCLoc = SM.getPresumedLoc(CurLoc); |
186 | if (PCLoc.isInvalid() || Scope->getFile() == getOrCreateFile(CurLoc)) |
187 | return; |
188 | |
189 | if (auto *LBF = dyn_cast<llvm::DILexicalBlockFile>(Scope)) { |
190 | LexicalBlockStack.pop_back(); |
191 | LexicalBlockStack.emplace_back(DBuilder.createLexicalBlockFile( |
192 | LBF->getScope(), getOrCreateFile(CurLoc))); |
193 | } else if (isa<llvm::DILexicalBlock>(Scope) || |
194 | isa<llvm::DISubprogram>(Scope)) { |
195 | LexicalBlockStack.pop_back(); |
196 | LexicalBlockStack.emplace_back( |
197 | DBuilder.createLexicalBlockFile(Scope, getOrCreateFile(CurLoc))); |
198 | } |
199 | } |
200 | |
201 | llvm::DIScope *CGDebugInfo::getDeclContextDescriptor(const Decl *D) { |
202 | llvm::DIScope *Mod = getParentModuleOrNull(D); |
203 | return getContextDescriptor(cast<Decl>(D->getDeclContext()), |
204 | Mod ? Mod : TheCU); |
205 | } |
206 | |
207 | llvm::DIScope *CGDebugInfo::getContextDescriptor(const Decl *Context, |
208 | llvm::DIScope *Default) { |
209 | if (!Context) |
210 | return Default; |
211 | |
212 | auto I = RegionMap.find(Context); |
213 | if (I != RegionMap.end()) { |
214 | llvm::Metadata *V = I->second; |
215 | return dyn_cast_or_null<llvm::DIScope>(V); |
216 | } |
217 | |
218 | |
219 | if (const auto *NSDecl = dyn_cast<NamespaceDecl>(Context)) |
220 | return getOrCreateNamespace(NSDecl); |
221 | |
222 | if (const auto *RDecl = dyn_cast<RecordDecl>(Context)) |
223 | if (!RDecl->isDependentType()) |
224 | return getOrCreateType(CGM.getContext().getTypeDeclType(RDecl), |
225 | TheCU->getFile()); |
226 | return Default; |
227 | } |
228 | |
229 | PrintingPolicy CGDebugInfo::getPrintingPolicy() const { |
230 | PrintingPolicy PP = CGM.getContext().getPrintingPolicy(); |
231 | |
232 | |
233 | |
234 | |
235 | |
236 | |
237 | if (CGM.getCodeGenOpts().EmitCodeView) { |
238 | PP.MSVCFormatting = true; |
239 | PP.SplitTemplateClosers = true; |
240 | } else { |
241 | |
242 | |
243 | PP.SplitTemplateClosers = true; |
244 | } |
245 | |
246 | |
247 | PP.Callbacks = &PrintCB; |
248 | return PP; |
249 | } |
250 | |
251 | StringRef CGDebugInfo::getFunctionName(const FunctionDecl *FD) { |
252 | return internString(GetName(FD)); |
253 | } |
254 | |
255 | StringRef CGDebugInfo::getObjCMethodName(const ObjCMethodDecl *OMD) { |
256 | SmallString<256> MethodName; |
257 | llvm::raw_svector_ostream OS(MethodName); |
258 | OS << (OMD->isInstanceMethod() ? '-' : '+') << '['; |
259 | const DeclContext *DC = OMD->getDeclContext(); |
260 | if (const auto *OID = dyn_cast<ObjCImplementationDecl>(DC)) { |
261 | OS << OID->getName(); |
262 | } else if (const auto *OID = dyn_cast<ObjCInterfaceDecl>(DC)) { |
263 | OS << OID->getName(); |
264 | } else if (const auto *OC = dyn_cast<ObjCCategoryDecl>(DC)) { |
265 | if (OC->IsClassExtension()) { |
266 | OS << OC->getClassInterface()->getName(); |
267 | } else { |
268 | OS << OC->getIdentifier()->getNameStart() << '(' |
269 | << OC->getIdentifier()->getNameStart() << ')'; |
270 | } |
271 | } else if (const auto *OCD = dyn_cast<ObjCCategoryImplDecl>(DC)) { |
272 | OS << OCD->getClassInterface()->getName() << '(' << OCD->getName() << ')'; |
273 | } |
274 | OS << ' ' << OMD->getSelector().getAsString() << ']'; |
275 | |
276 | return internString(OS.str()); |
277 | } |
278 | |
279 | StringRef CGDebugInfo::getSelectorName(Selector S) { |
280 | return internString(S.getAsString()); |
281 | } |
282 | |
283 | StringRef CGDebugInfo::getClassName(const RecordDecl *RD) { |
284 | if (isa<ClassTemplateSpecializationDecl>(RD)) { |
285 | |
286 | return internString(GetName(RD)); |
287 | } |
288 | |
289 | |
290 | |
291 | if (const IdentifierInfo *II = RD->getIdentifier()) |
292 | return II->getName(); |
293 | |
294 | |
295 | |
296 | |
297 | if (CGM.getCodeGenOpts().EmitCodeView) { |
298 | if (const TypedefNameDecl *D = RD->getTypedefNameForAnonDecl()) { |
299 | assert(RD->getDeclContext() == D->getDeclContext() && |
300 | "Typedef should not be in another decl context!"); |
301 | assert(D->getDeclName().getAsIdentifierInfo() && |
302 | "Typedef was not named!"); |
303 | return D->getDeclName().getAsIdentifierInfo()->getName(); |
304 | } |
305 | |
306 | if (CGM.getLangOpts().CPlusPlus) { |
307 | StringRef Name; |
308 | |
309 | ASTContext &Context = CGM.getContext(); |
310 | if (const DeclaratorDecl *DD = Context.getDeclaratorForUnnamedTagDecl(RD)) |
311 | |
312 | |
313 | Name = DD->getName(); |
314 | else if (const TypedefNameDecl *TND = |
315 | Context.getTypedefNameForUnnamedTagDecl(RD)) |
316 | |
317 | |
318 | Name = TND->getName(); |
319 | |
320 | |
321 | if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD)) |
322 | if (CXXRD->isLambda()) |
323 | return internString( |
324 | CGM.getCXXABI().getMangleContext().getLambdaString(CXXRD)); |
325 | |
326 | if (!Name.empty()) { |
327 | SmallString<256> UnnamedType("<unnamed-type-"); |
328 | UnnamedType += Name; |
329 | UnnamedType += '>'; |
330 | return internString(UnnamedType); |
331 | } |
332 | } |
333 | } |
334 | |
335 | return StringRef(); |
336 | } |
337 | |
338 | Optional<llvm::DIFile::ChecksumKind> |
339 | CGDebugInfo::computeChecksum(FileID FID, SmallString<32> &Checksum) const { |
340 | Checksum.clear(); |
341 | |
342 | if (!CGM.getCodeGenOpts().EmitCodeView && |
343 | CGM.getCodeGenOpts().DwarfVersion < 5) |
344 | return None; |
345 | |
346 | SourceManager &SM = CGM.getContext().getSourceManager(); |
347 | Optional<llvm::MemoryBufferRef> MemBuffer = SM.getBufferOrNone(FID); |
348 | if (!MemBuffer) |
349 | return None; |
350 | |
351 | llvm::MD5 Hash; |
352 | llvm::MD5::MD5Result Result; |
353 | |
354 | Hash.update(MemBuffer->getBuffer()); |
355 | Hash.final(Result); |
356 | |
357 | Hash.stringifyResult(Result, Checksum); |
358 | return llvm::DIFile::CSK_MD5; |
359 | } |
360 | |
361 | Optional<StringRef> CGDebugInfo::getSource(const SourceManager &SM, |
362 | FileID FID) { |
363 | if (!CGM.getCodeGenOpts().EmbedSource) |
364 | return None; |
365 | |
366 | bool SourceInvalid = false; |
367 | StringRef Source = SM.getBufferData(FID, &SourceInvalid); |
368 | |
369 | if (SourceInvalid) |
370 | return None; |
371 | |
372 | return Source; |
373 | } |
374 | |
375 | llvm::DIFile *CGDebugInfo::getOrCreateFile(SourceLocation Loc) { |
376 | SourceManager &SM = CGM.getContext().getSourceManager(); |
377 | StringRef FileName; |
378 | FileID FID; |
379 | |
380 | if (Loc.isInvalid()) { |
381 | |
382 | |
383 | |
384 | FileName = TheCU->getFile()->getFilename(); |
385 | } else { |
386 | PresumedLoc PLoc = SM.getPresumedLoc(Loc); |
387 | FileName = PLoc.getFilename(); |
388 | |
389 | if (FileName.empty()) { |
390 | FileName = TheCU->getFile()->getFilename(); |
391 | } else { |
392 | FileName = PLoc.getFilename(); |
393 | } |
394 | FID = PLoc.getFileID(); |
395 | } |
396 | |
397 | |
398 | auto It = DIFileCache.find(FileName.data()); |
399 | if (It != DIFileCache.end()) { |
400 | |
401 | if (llvm::Metadata *V = It->second) |
402 | return cast<llvm::DIFile>(V); |
403 | } |
404 | |
405 | SmallString<32> Checksum; |
406 | |
407 | Optional<llvm::DIFile::ChecksumKind> CSKind = computeChecksum(FID, Checksum); |
408 | Optional<llvm::DIFile::ChecksumInfo<StringRef>> CSInfo; |
409 | if (CSKind) |
410 | CSInfo.emplace(*CSKind, Checksum); |
411 | return createFile(FileName, CSInfo, getSource(SM, SM.getFileID(Loc))); |
412 | } |
413 | |
414 | llvm::DIFile * |
415 | CGDebugInfo::createFile(StringRef FileName, |
416 | Optional<llvm::DIFile::ChecksumInfo<StringRef>> CSInfo, |
417 | Optional<StringRef> Source) { |
418 | StringRef Dir; |
419 | StringRef File; |
420 | std::string RemappedFile = remapDIPath(FileName); |
421 | std::string CurDir = remapDIPath(getCurrentDirname()); |
422 | SmallString<128> DirBuf; |
423 | SmallString<128> FileBuf; |
424 | if (llvm::sys::path::is_absolute(RemappedFile)) { |
425 | |
426 | |
427 | auto FileIt = llvm::sys::path::begin(RemappedFile); |
428 | auto FileE = llvm::sys::path::end(RemappedFile); |
429 | auto CurDirIt = llvm::sys::path::begin(CurDir); |
430 | auto CurDirE = llvm::sys::path::end(CurDir); |
431 | for (; CurDirIt != CurDirE && *CurDirIt == *FileIt; ++CurDirIt, ++FileIt) |
432 | llvm::sys::path::append(DirBuf, *CurDirIt); |
433 | if (std::distance(llvm::sys::path::begin(CurDir), CurDirIt) == 1) { |
434 | |
435 | |
436 | Dir = {}; |
437 | File = RemappedFile; |
438 | } else { |
439 | for (; FileIt != FileE; ++FileIt) |
440 | llvm::sys::path::append(FileBuf, *FileIt); |
441 | Dir = DirBuf; |
442 | File = FileBuf; |
443 | } |
444 | } else { |
445 | Dir = CurDir; |
446 | File = RemappedFile; |
447 | } |
448 | llvm::DIFile *F = DBuilder.createFile(File, Dir, CSInfo, Source); |
449 | DIFileCache[FileName.data()].reset(F); |
450 | return F; |
451 | } |
452 | |
453 | std::string CGDebugInfo::remapDIPath(StringRef Path) const { |
454 | if (DebugPrefixMap.empty()) |
455 | return Path.str(); |
456 | |
457 | SmallString<256> P = Path; |
458 | for (const auto &Entry : DebugPrefixMap) |
459 | if (llvm::sys::path::replace_path_prefix(P, Entry.first, Entry.second)) |
460 | break; |
461 | return P.str().str(); |
462 | } |
463 | |
464 | unsigned CGDebugInfo::getLineNumber(SourceLocation Loc) { |
465 | if (Loc.isInvalid()) |
466 | return 0; |
467 | SourceManager &SM = CGM.getContext().getSourceManager(); |
468 | return SM.getPresumedLoc(Loc).getLine(); |
469 | } |
470 | |
471 | unsigned CGDebugInfo::getColumnNumber(SourceLocation Loc, bool Force) { |
472 | |
473 | if (!Force && !CGM.getCodeGenOpts().DebugColumnInfo) |
474 | return 0; |
475 | |
476 | |
477 | if (Loc.isInvalid() && CurLoc.isInvalid()) |
478 | return 0; |
479 | SourceManager &SM = CGM.getContext().getSourceManager(); |
480 | PresumedLoc PLoc = SM.getPresumedLoc(Loc.isValid() ? Loc : CurLoc); |
481 | return PLoc.isValid() ? PLoc.getColumn() : 0; |
482 | } |
483 | |
484 | StringRef CGDebugInfo::getCurrentDirname() { |
485 | if (!CGM.getCodeGenOpts().DebugCompilationDir.empty()) |
486 | return CGM.getCodeGenOpts().DebugCompilationDir; |
487 | |
488 | if (!CWDName.empty()) |
489 | return CWDName; |
490 | SmallString<256> CWD; |
491 | llvm::sys::fs::current_path(CWD); |
492 | return CWDName = internString(CWD); |
493 | } |
494 | |
495 | void CGDebugInfo::CreateCompileUnit() { |
496 | SmallString<32> Checksum; |
497 | Optional<llvm::DIFile::ChecksumKind> CSKind; |
498 | Optional<llvm::DIFile::ChecksumInfo<StringRef>> CSInfo; |
499 | |
500 | |
501 | |
502 | |
503 | |
504 | |
505 | |
506 | |
507 | |
508 | SourceManager &SM = CGM.getContext().getSourceManager(); |
509 | std::string MainFileName = CGM.getCodeGenOpts().MainFileName; |
510 | if (MainFileName.empty()) |
511 | MainFileName = "<stdin>"; |
512 | |
513 | |
514 | |
515 | |
516 | |
517 | std::string MainFileDir; |
518 | if (const FileEntry *MainFile = SM.getFileEntryForID(SM.getMainFileID())) { |
519 | MainFileDir = std::string(MainFile->getDir()->getName()); |
520 | if (!llvm::sys::path::is_absolute(MainFileName)) { |
521 | llvm::SmallString<1024> MainFileDirSS(MainFileDir); |
522 | llvm::sys::path::append(MainFileDirSS, MainFileName); |
523 | MainFileName = |
524 | std::string(llvm::sys::path::remove_leading_dotslash(MainFileDirSS)); |
525 | } |
526 | |
527 | |
528 | |
529 | |
530 | if (MainFile->getName() == MainFileName && |
531 | FrontendOptions::getInputKindForExtension( |
532 | MainFile->getName().rsplit('.').second) |
533 | .isPreprocessed()) |
534 | MainFileName = CGM.getModule().getName().str(); |
535 | |
536 | CSKind = computeChecksum(SM.getMainFileID(), Checksum); |
537 | } |
538 | |
539 | llvm::dwarf::SourceLanguage LangTag; |
540 | const LangOptions &LO = CGM.getLangOpts(); |
541 | if (LO.CPlusPlus) { |
542 | if (LO.ObjC) |
543 | LangTag = llvm::dwarf::DW_LANG_ObjC_plus_plus; |
544 | else if (LO.CPlusPlus14 && (!CGM.getCodeGenOpts().DebugStrictDwarf || |
545 | CGM.getCodeGenOpts().DwarfVersion >= 5)) |
546 | LangTag = llvm::dwarf::DW_LANG_C_plus_plus_14; |
547 | else if (LO.CPlusPlus11 && (!CGM.getCodeGenOpts().DebugStrictDwarf || |
548 | CGM.getCodeGenOpts().DwarfVersion >= 5)) |
549 | LangTag = llvm::dwarf::DW_LANG_C_plus_plus_11; |
550 | else |
551 | LangTag = llvm::dwarf::DW_LANG_C_plus_plus; |
552 | } else if (LO.ObjC) { |
553 | LangTag = llvm::dwarf::DW_LANG_ObjC; |
554 | } else if (LO.OpenCL && (!CGM.getCodeGenOpts().DebugStrictDwarf || |
555 | CGM.getCodeGenOpts().DwarfVersion >= 5)) { |
556 | LangTag = llvm::dwarf::DW_LANG_OpenCL; |
557 | } else if (LO.RenderScript) { |
558 | LangTag = llvm::dwarf::DW_LANG_GOOGLE_RenderScript; |
559 | } else if (LO.C99) { |
560 | LangTag = llvm::dwarf::DW_LANG_C99; |
561 | } else { |
562 | LangTag = llvm::dwarf::DW_LANG_C89; |
563 | } |
564 | |
565 | std::string Producer = getClangFullVersion(); |
566 | |
567 | |
568 | unsigned RuntimeVers = 0; |
569 | if (LO.ObjC) |
570 | RuntimeVers = LO.ObjCRuntime.isNonFragile() ? 2 : 1; |
571 | |
572 | llvm::DICompileUnit::DebugEmissionKind EmissionKind; |
573 | switch (DebugKind) { |
574 | case codegenoptions::NoDebugInfo: |
575 | case codegenoptions::LocTrackingOnly: |
576 | EmissionKind = llvm::DICompileUnit::NoDebug; |
577 | break; |
578 | case codegenoptions::DebugLineTablesOnly: |
579 | EmissionKind = llvm::DICompileUnit::LineTablesOnly; |
580 | break; |
581 | case codegenoptions::DebugDirectivesOnly: |
582 | EmissionKind = llvm::DICompileUnit::DebugDirectivesOnly; |
583 | break; |
584 | case codegenoptions::DebugInfoConstructor: |
585 | case codegenoptions::LimitedDebugInfo: |
586 | case codegenoptions::FullDebugInfo: |
587 | case codegenoptions::UnusedTypeInfo: |
588 | EmissionKind = llvm::DICompileUnit::FullDebug; |
589 | break; |
590 | } |
591 | |
592 | uint64_t DwoId = 0; |
593 | auto &CGOpts = CGM.getCodeGenOpts(); |
594 | |
595 | |
596 | |
597 | |
598 | if (CSKind) |
599 | CSInfo.emplace(*CSKind, Checksum); |
600 | llvm::DIFile *CUFile = DBuilder.createFile( |
601 | remapDIPath(MainFileName), remapDIPath(getCurrentDirname()), CSInfo, |
602 | getSource(SM, SM.getMainFileID())); |
603 | |
604 | StringRef Sysroot, SDK; |
605 | if (CGM.getCodeGenOpts().getDebuggerTuning() == llvm::DebuggerKind::LLDB) { |
606 | Sysroot = CGM.getHeaderSearchOpts().Sysroot; |
607 | auto B = llvm::sys::path::rbegin(Sysroot); |
608 | auto E = llvm::sys::path::rend(Sysroot); |
609 | auto It = std::find_if(B, E, [](auto SDK) { return SDK.endswith(".sdk"); }); |
610 | if (It != E) |
611 | SDK = *It; |
612 | } |
613 | |
614 | |
615 | TheCU = DBuilder.createCompileUnit( |
616 | LangTag, CUFile, CGOpts.EmitVersionIdentMetadata ? Producer : "", |
617 | LO.Optimize || CGOpts.PrepareForLTO || CGOpts.PrepareForThinLTO, |
618 | CGOpts.DwarfDebugFlags, RuntimeVers, CGOpts.SplitDwarfFile, EmissionKind, |
619 | DwoId, CGOpts.SplitDwarfInlining, CGOpts.DebugInfoForProfiling, |
620 | CGM.getTarget().getTriple().isNVPTX() |
621 | ? llvm::DICompileUnit::DebugNameTableKind::None |
622 | : static_cast<llvm::DICompileUnit::DebugNameTableKind>( |
623 | CGOpts.DebugNameTable), |
624 | CGOpts.DebugRangesBaseAddress, remapDIPath(Sysroot), SDK); |
625 | } |
626 | |
627 | llvm::DIType *CGDebugInfo::CreateType(const BuiltinType *BT) { |
628 | llvm::dwarf::TypeKind Encoding; |
629 | StringRef BTName; |
630 | switch (BT->getKind()) { |
631 | #define BUILTIN_TYPE(Id, SingletonId) |
632 | #define PLACEHOLDER_TYPE(Id, SingletonId) case BuiltinType::Id: |
633 | #include "clang/AST/BuiltinTypes.def" |
634 | case BuiltinType::Dependent: |
635 | llvm_unreachable("Unexpected builtin type"); |
636 | case BuiltinType::NullPtr: |
637 | return DBuilder.createNullPtrType(); |
638 | case BuiltinType::Void: |
639 | return nullptr; |
640 | case BuiltinType::ObjCClass: |
641 | if (!ClassTy) |
642 | ClassTy = |
643 | DBuilder.createForwardDecl(llvm::dwarf::DW_TAG_structure_type, |
644 | "objc_class", TheCU, TheCU->getFile(), 0); |
645 | return ClassTy; |
646 | case BuiltinType::ObjCId: { |
647 | |
648 | |
649 | |
650 | |
651 | |
652 | if (ObjTy) |
653 | return ObjTy; |
654 | |
655 | if (!ClassTy) |
656 | ClassTy = |
657 | DBuilder.createForwardDecl(llvm::dwarf::DW_TAG_structure_type, |
658 | "objc_class", TheCU, TheCU->getFile(), 0); |
659 | |
660 | unsigned Size = CGM.getContext().getTypeSize(CGM.getContext().VoidPtrTy); |
661 | |
662 | auto *ISATy = DBuilder.createPointerType(ClassTy, Size); |
663 | |
664 | ObjTy = DBuilder.createStructType(TheCU, "objc_object", TheCU->getFile(), 0, |
665 | 0, 0, llvm::DINode::FlagZero, nullptr, |
666 | llvm::DINodeArray()); |
667 | |
668 | DBuilder.replaceArrays( |
669 | ObjTy, DBuilder.getOrCreateArray(&*DBuilder.createMemberType( |
670 | ObjTy, "isa", TheCU->getFile(), 0, Size, 0, 0, |
671 | llvm::DINode::FlagZero, ISATy))); |
672 | return ObjTy; |
673 | } |
674 | case BuiltinType::ObjCSel: { |
675 | if (!SelTy) |
676 | SelTy = DBuilder.createForwardDecl(llvm::dwarf::DW_TAG_structure_type, |
677 | "objc_selector", TheCU, |
678 | TheCU->getFile(), 0); |
679 | return SelTy; |
680 | } |
681 | |
682 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ |
683 | case BuiltinType::Id: \ |
684 | return getOrCreateStructPtrType("opencl_" #ImgType "_" #Suffix "_t", \ |
685 | SingletonId); |
686 | #include "clang/Basic/OpenCLImageTypes.def" |
687 | case BuiltinType::OCLSampler: |
688 | return getOrCreateStructPtrType("opencl_sampler_t", OCLSamplerDITy); |
689 | case BuiltinType::OCLEvent: |
690 | return getOrCreateStructPtrType("opencl_event_t", OCLEventDITy); |
691 | case BuiltinType::OCLClkEvent: |
692 | return getOrCreateStructPtrType("opencl_clk_event_t", OCLClkEventDITy); |
693 | case BuiltinType::OCLQueue: |
694 | return getOrCreateStructPtrType("opencl_queue_t", OCLQueueDITy); |
695 | case BuiltinType::OCLReserveID: |
696 | return getOrCreateStructPtrType("opencl_reserve_id_t", OCLReserveIDDITy); |
697 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ |
698 | case BuiltinType::Id: \ |
699 | return getOrCreateStructPtrType("opencl_" #ExtType, Id##Ty); |
700 | #include "clang/Basic/OpenCLExtensionTypes.def" |
701 | |
702 | #define SVE_TYPE(Name, Id, SingletonId) case BuiltinType::Id: |
703 | #include "clang/Basic/AArch64SVEACLETypes.def" |
704 | { |
705 | ASTContext::BuiltinVectorTypeInfo Info = |
706 | CGM.getContext().getBuiltinVectorTypeInfo(BT); |
707 | unsigned NumElemsPerVG = (Info.EC.getKnownMinValue() * Info.NumVectors) / 2; |
708 | |
709 | |
710 | |
711 | if (Info.ElementType == CGM.getContext().BoolTy) { |
712 | NumElemsPerVG /= 8; |
713 | Info.ElementType = CGM.getContext().UnsignedCharTy; |
714 | } |
715 | |
716 | auto *LowerBound = |
717 | llvm::ConstantAsMetadata::get(llvm::ConstantInt::getSigned( |
718 | llvm::Type::getInt64Ty(CGM.getLLVMContext()), 0)); |
719 | SmallVector<int64_t, 9> Expr( |
720 | {llvm::dwarf::DW_OP_constu, NumElemsPerVG, llvm::dwarf::DW_OP_bregx, |
721 | 46, 0, llvm::dwarf::DW_OP_mul, |
722 | llvm::dwarf::DW_OP_constu, 1, llvm::dwarf::DW_OP_minus}); |
723 | auto *UpperBound = DBuilder.createExpression(Expr); |
724 | |
725 | llvm::Metadata *Subscript = DBuilder.getOrCreateSubrange( |
726 | nullptr, LowerBound, UpperBound, nullptr); |
727 | llvm::DINodeArray SubscriptArray = DBuilder.getOrCreateArray(Subscript); |
728 | llvm::DIType *ElemTy = |
729 | getOrCreateType(Info.ElementType, TheCU->getFile()); |
730 | auto Align = getTypeAlignIfRequired(BT, CGM.getContext()); |
731 | return DBuilder.createVectorType( 0, Align, ElemTy, |
732 | SubscriptArray); |
733 | } |
734 | |
735 | |
736 | #define PPC_VECTOR_TYPE(Name, Id, size) \ |
737 | case BuiltinType::Id: |
738 | #include "clang/Basic/PPCTypes.def" |
739 | return CreateType(cast<const BuiltinType>(CGM.getContext().IntTy)); |
740 | |
741 | #define RVV_TYPE(Name, Id, SingletonId) case BuiltinType::Id: |
742 | #include "clang/Basic/RISCVVTypes.def" |
743 | { |
744 | ASTContext::BuiltinVectorTypeInfo Info = |
745 | CGM.getContext().getBuiltinVectorTypeInfo(BT); |
746 | |
747 | unsigned ElementCount = Info.EC.getKnownMinValue(); |
748 | unsigned SEW = CGM.getContext().getTypeSize(Info.ElementType); |
749 | |
750 | bool Fractional = false; |
751 | unsigned LMUL; |
752 | unsigned FixedSize = ElementCount * SEW; |
753 | if (Info.ElementType == CGM.getContext().BoolTy) { |
754 | |
755 | LMUL = 1; |
756 | } else if (FixedSize < 64) { |
757 | |
758 | Fractional = true; |
759 | LMUL = 64 / FixedSize; |
760 | } else { |
761 | LMUL = FixedSize / 64; |
762 | } |
763 | |
764 | |
765 | SmallVector<int64_t, 9> Expr( |
766 | |
767 | |
768 | |
769 | {llvm::dwarf::DW_OP_bregx, |
770 | 4096 + 0xC22, |
771 | 0, |
772 | llvm::dwarf::DW_OP_constu, |
773 | SEW / 8, |
774 | llvm::dwarf::DW_OP_div, llvm::dwarf::DW_OP_constu, LMUL}); |
775 | if (Fractional) |
776 | Expr.push_back(llvm::dwarf::DW_OP_div); |
777 | else |
778 | Expr.push_back(llvm::dwarf::DW_OP_mul); |
779 | |
780 | auto *LowerBound = |
781 | llvm::ConstantAsMetadata::get(llvm::ConstantInt::getSigned( |
782 | llvm::Type::getInt64Ty(CGM.getLLVMContext()), 0)); |
783 | auto *UpperBound = DBuilder.createExpression(Expr); |
784 | llvm::Metadata *Subscript = DBuilder.getOrCreateSubrange( |
785 | nullptr, LowerBound, UpperBound, nullptr); |
786 | llvm::DINodeArray SubscriptArray = DBuilder.getOrCreateArray(Subscript); |
787 | llvm::DIType *ElemTy = |
788 | getOrCreateType(Info.ElementType, TheCU->getFile()); |
789 | |
790 | auto Align = getTypeAlignIfRequired(BT, CGM.getContext()); |
791 | return DBuilder.createVectorType(0, Align, ElemTy, |
792 | SubscriptArray); |
793 | } |
794 | case BuiltinType::UChar: |
795 | case BuiltinType::Char_U: |
796 | Encoding = llvm::dwarf::DW_ATE_unsigned_char; |
797 | break; |
798 | case BuiltinType::Char_S: |
799 | case BuiltinType::SChar: |
800 | Encoding = llvm::dwarf::DW_ATE_signed_char; |
801 | break; |
802 | case BuiltinType::Char8: |
803 | case BuiltinType::Char16: |
804 | case BuiltinType::Char32: |
805 | Encoding = llvm::dwarf::DW_ATE_UTF; |
806 | break; |
807 | case BuiltinType::UShort: |
808 | case BuiltinType::UInt: |
809 | case BuiltinType::UInt128: |
810 | case BuiltinType::ULong: |
811 | case BuiltinType::WChar_U: |
812 | case BuiltinType::ULongLong: |
813 | Encoding = llvm::dwarf::DW_ATE_unsigned; |
814 | break; |
815 | case BuiltinType::Short: |
816 | case BuiltinType::Int: |
817 | case BuiltinType::Int128: |
818 | case BuiltinType::Long: |
819 | case BuiltinType::WChar_S: |
820 | case BuiltinType::LongLong: |
821 | Encoding = llvm::dwarf::DW_ATE_signed; |
822 | break; |
823 | case BuiltinType::Bool: |
824 | Encoding = llvm::dwarf::DW_ATE_boolean; |
825 | break; |
826 | case BuiltinType::Half: |
827 | case BuiltinType::Float: |
828 | case BuiltinType::LongDouble: |
829 | case BuiltinType::Float16: |
830 | case BuiltinType::BFloat16: |
831 | case BuiltinType::Float128: |
832 | case BuiltinType::Double: |
833 | |
834 | |
835 | |
836 | |
837 | |
838 | Encoding = llvm::dwarf::DW_ATE_float; |
839 | break; |
840 | case BuiltinType::ShortAccum: |
841 | case BuiltinType::Accum: |
842 | case BuiltinType::LongAccum: |
843 | case BuiltinType::ShortFract: |
844 | case BuiltinType::Fract: |
845 | case BuiltinType::LongFract: |
846 | case BuiltinType::SatShortFract: |
847 | case BuiltinType::SatFract: |
848 | case BuiltinType::SatLongFract: |
849 | case BuiltinType::SatShortAccum: |
850 | case BuiltinType::SatAccum: |
851 | case BuiltinType::SatLongAccum: |
852 | Encoding = llvm::dwarf::DW_ATE_signed_fixed; |
853 | break; |
854 | case BuiltinType::UShortAccum: |
855 | case BuiltinType::UAccum: |
856 | case BuiltinType::ULongAccum: |
857 | case BuiltinType::UShortFract: |
858 | case BuiltinType::UFract: |
859 | case BuiltinType::ULongFract: |
860 | case BuiltinType::SatUShortAccum: |
861 | case BuiltinType::SatUAccum: |
862 | case BuiltinType::SatULongAccum: |
863 | case BuiltinType::SatUShortFract: |
864 | case BuiltinType::SatUFract: |
865 | case BuiltinType::SatULongFract: |
866 | Encoding = llvm::dwarf::DW_ATE_unsigned_fixed; |
867 | break; |
868 | } |
869 | |
870 | switch (BT->getKind()) { |
871 | case BuiltinType::Long: |
872 | BTName = "long int"; |
873 | break; |
874 | case BuiltinType::LongLong: |
875 | BTName = "long long int"; |
876 | break; |
877 | case BuiltinType::ULong: |
878 | BTName = "long unsigned int"; |
879 | break; |
880 | case BuiltinType::ULongLong: |
881 | BTName = "long long unsigned int"; |
882 | break; |
883 | default: |
884 | BTName = BT->getName(CGM.getLangOpts()); |
885 | break; |
886 | } |
887 | |
888 | uint64_t Size = CGM.getContext().getTypeSize(BT); |
889 | return DBuilder.createBasicType(BTName, Size, Encoding); |
890 | } |
891 | |
892 | llvm::DIType *CGDebugInfo::CreateType(const AutoType *Ty) { |
893 | return DBuilder.createUnspecifiedType("auto"); |
894 | } |
895 | |
896 | llvm::DIType *CGDebugInfo::CreateType(const ExtIntType *Ty) { |
897 | |
898 | StringRef Name = Ty->isUnsigned() ? "unsigned _ExtInt" : "_ExtInt"; |
899 | llvm::dwarf::TypeKind Encoding = Ty->isUnsigned() |
900 | ? llvm::dwarf::DW_ATE_unsigned |
901 | : llvm::dwarf::DW_ATE_signed; |
902 | |
903 | return DBuilder.createBasicType(Name, CGM.getContext().getTypeSize(Ty), |
904 | Encoding); |
905 | } |
906 | |
907 | llvm::DIType *CGDebugInfo::CreateType(const ComplexType *Ty) { |
908 | |
909 | llvm::dwarf::TypeKind Encoding = llvm::dwarf::DW_ATE_complex_float; |
910 | if (Ty->isComplexIntegerType()) |
911 | Encoding = llvm::dwarf::DW_ATE_lo_user; |
912 | |
913 | uint64_t Size = CGM.getContext().getTypeSize(Ty); |
914 | return DBuilder.createBasicType("complex", Size, Encoding); |
915 | } |
916 | |
917 | llvm::DIType *CGDebugInfo::CreateQualifiedType(QualType Ty, |
918 | llvm::DIFile *Unit) { |
919 | QualifierCollector Qc; |
920 | const Type *T = Qc.strip(Ty); |
921 | |
922 | |
923 | Qc.removeObjCGCAttr(); |
924 | Qc.removeAddressSpace(); |
925 | Qc.removeObjCLifetime(); |
926 | |
927 | |
928 | |
929 | llvm::dwarf::Tag Tag; |
930 | if (Qc.hasConst()) { |
931 | Tag = llvm::dwarf::DW_TAG_const_type; |
932 | Qc.removeConst(); |
933 | } else if (Qc.hasVolatile()) { |
934 | Tag = llvm::dwarf::DW_TAG_volatile_type; |
935 | Qc.removeVolatile(); |
936 | } else if (Qc.hasRestrict()) { |
937 | Tag = llvm::dwarf::DW_TAG_restrict_type; |
938 | Qc.removeRestrict(); |
939 | } else { |
940 | assert(Qc.empty() && "Unknown type qualifier for debug info"); |
941 | return getOrCreateType(QualType(T, 0), Unit); |
942 | } |
943 | |
944 | auto *FromTy = getOrCreateType(Qc.apply(CGM.getContext(), T), Unit); |
945 | |
946 | |
947 | |
948 | return DBuilder.createQualifiedType(Tag, FromTy); |
949 | } |
950 | |
951 | llvm::DIType *CGDebugInfo::CreateType(const ObjCObjectPointerType *Ty, |
952 | llvm::DIFile *Unit) { |
953 | |
954 | |
955 | |
956 | |
957 | if (Ty->isObjCQualifiedIdType()) |
958 | return getOrCreateType(CGM.getContext().getObjCIdType(), Unit); |
959 | |
960 | return CreatePointerLikeType(llvm::dwarf::DW_TAG_pointer_type, Ty, |
961 | Ty->getPointeeType(), Unit); |
962 | } |
963 | |
964 | llvm::DIType *CGDebugInfo::CreateType(const PointerType *Ty, |
965 | llvm::DIFile *Unit) { |
966 | return CreatePointerLikeType(llvm::dwarf::DW_TAG_pointer_type, Ty, |
967 | Ty->getPointeeType(), Unit); |
968 | } |
969 | |
970 | |
971 | static bool hasCXXMangling(const TagDecl *TD, llvm::DICompileUnit *TheCU) { |
972 | switch (TheCU->getSourceLanguage()) { |
973 | case llvm::dwarf::DW_LANG_C_plus_plus: |
974 | case llvm::dwarf::DW_LANG_C_plus_plus_11: |
975 | case llvm::dwarf::DW_LANG_C_plus_plus_14: |
976 | return true; |
977 | case llvm::dwarf::DW_LANG_ObjC_plus_plus: |
978 | return isa<CXXRecordDecl>(TD) || isa<EnumDecl>(TD); |
979 | default: |
980 | return false; |
981 | } |
982 | } |
983 | |
984 | |
985 | |
986 | |
987 | |
988 | |
989 | |
990 | |
991 | |
992 | |
993 | |
994 | |
995 | |
996 | |
997 | |
998 | |
999 | |
1000 | |
1001 | |
1002 | |
1003 | |
1004 | |
1005 | static bool needsTypeIdentifier(const TagDecl *TD, CodeGenModule &CGM, |
1006 | llvm::DICompileUnit *TheCU) { |
1007 | |
1008 | if (!hasCXXMangling(TD, TheCU)) |
1009 | return false; |
1010 | |
1011 | |
1012 | if (TD->isExternallyVisible()) |
1013 | return true; |
1014 | |
1015 | |
1016 | if (CGM.getCodeGenOpts().EmitCodeView) |
1017 | return true; |
1018 | |
1019 | return false; |
1020 | } |
1021 | |
1022 | |
1023 | static SmallString<256> getTypeIdentifier(const TagType *Ty, CodeGenModule &CGM, |
1024 | llvm::DICompileUnit *TheCU) { |
1025 | SmallString<256> Identifier; |
1026 | const TagDecl *TD = Ty->getDecl(); |
1027 | |
1028 | if (!needsTypeIdentifier(TD, CGM, TheCU)) |
1029 | return Identifier; |
1030 | if (const auto *RD = dyn_cast<CXXRecordDecl>(TD)) |
1031 | if (RD->getDefinition()) |
1032 | if (RD->isDynamicClass() && |
1033 | CGM.getVTableLinkage(RD) == llvm::GlobalValue::ExternalLinkage) |
1034 | return Identifier; |
1035 | |
1036 | |
1037 | |
1038 | llvm::raw_svector_ostream Out(Identifier); |
1039 | CGM.getCXXABI().getMangleContext().mangleCXXRTTIName(QualType(Ty, 0), Out); |
1040 | return Identifier; |
1041 | } |
1042 | |
1043 | |
1044 | static llvm::dwarf::Tag getTagForRecord(const RecordDecl *RD) { |
1045 | llvm::dwarf::Tag Tag; |
1046 | if (RD->isStruct() || RD->isInterface()) |
1047 | Tag = llvm::dwarf::DW_TAG_structure_type; |
1048 | else if (RD->isUnion()) |
1049 | Tag = llvm::dwarf::DW_TAG_union_type; |
1050 | else { |
1051 | |
1052 | |
1053 | assert(RD->isClass()); |
1054 | Tag = llvm::dwarf::DW_TAG_class_type; |
1055 | } |
1056 | return Tag; |
1057 | } |
1058 | |
1059 | llvm::DICompositeType * |
1060 | CGDebugInfo::getOrCreateRecordFwdDecl(const RecordType *Ty, |
1061 | llvm::DIScope *Ctx) { |
1062 | const RecordDecl *RD = Ty->getDecl(); |
1063 | if (llvm::DIType *T = getTypeOrNull(CGM.getContext().getRecordType(RD))) |
1064 | return cast<llvm::DICompositeType>(T); |
1065 | llvm::DIFile *DefUnit = getOrCreateFile(RD->getLocation()); |
1066 | const unsigned Line = |
1067 | getLineNumber(RD->getLocation().isValid() ? RD->getLocation() : CurLoc); |
1068 | StringRef RDName = getClassName(RD); |
1069 | |
1070 | uint64_t Size = 0; |
1071 | uint32_t Align = 0; |
1072 | |
1073 | const RecordDecl *D = RD->getDefinition(); |
1074 | if (D && D->isCompleteDefinition()) |
1075 | Size = CGM.getContext().getTypeSize(Ty); |
1076 | |
1077 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagFwdDecl; |
1078 | |
1079 | |
1080 | |
1081 | |
1082 | if (const CXXRecordDecl *CXXRD = dyn_cast<CXXRecordDecl>(RD)) |
1083 | if (!CXXRD->hasDefinition() || |
1084 | (CXXRD->hasDefinition() && !CXXRD->isTrivial())) |
1085 | Flags |= llvm::DINode::FlagNonTrivial; |
1086 | |
1087 | |
1088 | SmallString<256> Identifier; |
1089 | |
1090 | if (CGM.getCodeGenOpts().hasReducedDebugInfo()) |
1091 | Identifier = getTypeIdentifier(Ty, CGM, TheCU); |
1092 | llvm::DICompositeType *RetTy = DBuilder.createReplaceableCompositeType( |
1093 | getTagForRecord(RD), RDName, Ctx, DefUnit, Line, 0, Size, Align, Flags, |
1094 | Identifier); |
1095 | if (CGM.getCodeGenOpts().DebugFwdTemplateParams) |
1096 | if (auto *TSpecial = dyn_cast<ClassTemplateSpecializationDecl>(RD)) |
1097 | DBuilder.replaceArrays(RetTy, llvm::DINodeArray(), |
1098 | CollectCXXTemplateParams(TSpecial, DefUnit)); |
1099 | ReplaceMap.emplace_back( |
1100 | std::piecewise_construct, std::make_tuple(Ty), |
1101 | std::make_tuple(static_cast<llvm::Metadata *>(RetTy))); |
1102 | return RetTy; |
1103 | } |
1104 | |
1105 | llvm::DIType *CGDebugInfo::CreatePointerLikeType(llvm::dwarf::Tag Tag, |
1106 | const Type *Ty, |
1107 | QualType PointeeTy, |
1108 | llvm::DIFile *Unit) { |
1109 | |
1110 | |
1111 | |
1112 | unsigned AddressSpace = CGM.getContext().getTargetAddressSpace(PointeeTy); |
1113 | uint64_t Size = CGM.getTarget().getPointerWidth(AddressSpace); |
1114 | auto Align = getTypeAlignIfRequired(Ty, CGM.getContext()); |
1115 | Optional<unsigned> DWARFAddressSpace = |
1116 | CGM.getTarget().getDWARFAddressSpace(AddressSpace); |
1117 | |
1118 | if (Tag == llvm::dwarf::DW_TAG_reference_type || |
1119 | Tag == llvm::dwarf::DW_TAG_rvalue_reference_type) |
1120 | return DBuilder.createReferenceType(Tag, getOrCreateType(PointeeTy, Unit), |
1121 | Size, Align, DWARFAddressSpace); |
1122 | else |
1123 | return DBuilder.createPointerType(getOrCreateType(PointeeTy, Unit), Size, |
1124 | Align, DWARFAddressSpace); |
1125 | } |
1126 | |
1127 | llvm::DIType *CGDebugInfo::getOrCreateStructPtrType(StringRef Name, |
1128 | llvm::DIType *&Cache) { |
1129 | if (Cache) |
1130 | return Cache; |
1131 | Cache = DBuilder.createForwardDecl(llvm::dwarf::DW_TAG_structure_type, Name, |
1132 | TheCU, TheCU->getFile(), 0); |
1133 | unsigned Size = CGM.getContext().getTypeSize(CGM.getContext().VoidPtrTy); |
1134 | Cache = DBuilder.createPointerType(Cache, Size); |
1135 | return Cache; |
1136 | } |
1137 | |
1138 | uint64_t CGDebugInfo::collectDefaultElementTypesForBlockPointer( |
1139 | const BlockPointerType *Ty, llvm::DIFile *Unit, llvm::DIDerivedType *DescTy, |
1140 | unsigned LineNo, SmallVectorImpl<llvm::Metadata *> &EltTys) { |
1141 | QualType FType; |
1142 | |
1143 | |
1144 | |
1145 | uint64_t FieldOffset = 0; |
1146 | |
1147 | |
1148 | |
1149 | |
1150 | if (CGM.getLangOpts().OpenCL) { |
1151 | FType = CGM.getContext().IntTy; |
1152 | EltTys.push_back(CreateMemberType(Unit, FType, "__size", &FieldOffset)); |
1153 | EltTys.push_back(CreateMemberType(Unit, FType, "__align", &FieldOffset)); |
1154 | } else { |
1155 | FType = CGM.getContext().getPointerType(CGM.getContext().VoidTy); |
1156 | EltTys.push_back(CreateMemberType(Unit, FType, "__isa", &FieldOffset)); |
1157 | FType = CGM.getContext().IntTy; |
1158 | EltTys.push_back(CreateMemberType(Unit, FType, "__flags", &FieldOffset)); |
1159 | EltTys.push_back(CreateMemberType(Unit, FType, "__reserved", &FieldOffset)); |
1160 | FType = CGM.getContext().getPointerType(Ty->getPointeeType()); |
1161 | EltTys.push_back(CreateMemberType(Unit, FType, "__FuncPtr", &FieldOffset)); |
1162 | FType = CGM.getContext().getPointerType(CGM.getContext().VoidTy); |
1163 | uint64_t FieldSize = CGM.getContext().getTypeSize(Ty); |
1164 | uint32_t FieldAlign = CGM.getContext().getTypeAlign(Ty); |
1165 | EltTys.push_back(DBuilder.createMemberType( |
1166 | Unit, "__descriptor", nullptr, LineNo, FieldSize, FieldAlign, |
1167 | FieldOffset, llvm::DINode::FlagZero, DescTy)); |
1168 | FieldOffset += FieldSize; |
1169 | } |
1170 | |
1171 | return FieldOffset; |
1172 | } |
1173 | |
1174 | llvm::DIType *CGDebugInfo::CreateType(const BlockPointerType *Ty, |
1175 | llvm::DIFile *Unit) { |
1176 | SmallVector<llvm::Metadata *, 8> EltTys; |
1177 | QualType FType; |
1178 | uint64_t FieldOffset; |
1179 | llvm::DINodeArray Elements; |
1180 | |
1181 | FieldOffset = 0; |
1182 | FType = CGM.getContext().UnsignedLongTy; |
1183 | EltTys.push_back(CreateMemberType(Unit, FType, "reserved", &FieldOffset)); |
1184 | EltTys.push_back(CreateMemberType(Unit, FType, "Size", &FieldOffset)); |
1185 | |
1186 | Elements = DBuilder.getOrCreateArray(EltTys); |
1187 | EltTys.clear(); |
1188 | |
1189 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagAppleBlock; |
1190 | |
1191 | auto *EltTy = |
1192 | DBuilder.createStructType(Unit, "__block_descriptor", nullptr, 0, |
1193 | FieldOffset, 0, Flags, nullptr, Elements); |
1194 | |
1195 | |
1196 | uint64_t Size = CGM.getContext().getTypeSize(Ty); |
1197 | |
1198 | auto *DescTy = DBuilder.createPointerType(EltTy, Size); |
1199 | |
1200 | FieldOffset = collectDefaultElementTypesForBlockPointer(Ty, Unit, DescTy, |
1201 | 0, EltTys); |
1202 | |
1203 | Elements = DBuilder.getOrCreateArray(EltTys); |
1204 | |
1205 | |
1206 | |
1207 | |
1208 | |
1209 | EltTy = DBuilder.createStructType(Unit, "", nullptr, 0, FieldOffset, 0, |
1210 | Flags, nullptr, Elements); |
1211 | |
1212 | return DBuilder.createPointerType(EltTy, Size); |
1213 | } |
1214 | |
1215 | llvm::DIType *CGDebugInfo::CreateType(const TemplateSpecializationType *Ty, |
1216 | llvm::DIFile *Unit) { |
1217 | assert(Ty->isTypeAlias()); |
1218 | llvm::DIType *Src = getOrCreateType(Ty->getAliasedType(), Unit); |
1219 | |
1220 | auto *AliasDecl = |
1221 | cast<TypeAliasTemplateDecl>(Ty->getTemplateName().getAsTemplateDecl()) |
1222 | ->getTemplatedDecl(); |
1223 | |
1224 | if (AliasDecl->hasAttr<NoDebugAttr>()) |
1225 | return Src; |
1226 | |
1227 | SmallString<128> NS; |
1228 | llvm::raw_svector_ostream OS(NS); |
1229 | Ty->getTemplateName().print(OS, getPrintingPolicy(), false); |
1230 | printTemplateArgumentList(OS, Ty->template_arguments(), getPrintingPolicy()); |
1231 | |
1232 | SourceLocation Loc = AliasDecl->getLocation(); |
1233 | return DBuilder.createTypedef(Src, OS.str(), getOrCreateFile(Loc), |
1234 | getLineNumber(Loc), |
1235 | getDeclContextDescriptor(AliasDecl)); |
1236 | } |
1237 | |
1238 | llvm::DIType *CGDebugInfo::CreateType(const TypedefType *Ty, |
1239 | llvm::DIFile *Unit) { |
1240 | llvm::DIType *Underlying = |
1241 | getOrCreateType(Ty->getDecl()->getUnderlyingType(), Unit); |
1242 | |
1243 | if (Ty->getDecl()->hasAttr<NoDebugAttr>()) |
1244 | return Underlying; |
1245 | |
1246 | |
1247 | |
1248 | SourceLocation Loc = Ty->getDecl()->getLocation(); |
1249 | |
1250 | uint32_t Align = getDeclAlignIfRequired(Ty->getDecl(), CGM.getContext()); |
1251 | |
1252 | return DBuilder.createTypedef(Underlying, Ty->getDecl()->getName(), |
1253 | getOrCreateFile(Loc), getLineNumber(Loc), |
1254 | getDeclContextDescriptor(Ty->getDecl()), Align); |
1255 | } |
1256 | |
1257 | static unsigned getDwarfCC(CallingConv CC) { |
1258 | switch (CC) { |
1259 | case CC_C: |
1260 | |
1261 | return 0; |
1262 | |
1263 | case CC_X86StdCall: |
1264 | return llvm::dwarf::DW_CC_BORLAND_stdcall; |
1265 | case CC_X86FastCall: |
1266 | return llvm::dwarf::DW_CC_BORLAND_msfastcall; |
1267 | case CC_X86ThisCall: |
1268 | return llvm::dwarf::DW_CC_BORLAND_thiscall; |
1269 | case CC_X86VectorCall: |
1270 | return llvm::dwarf::DW_CC_LLVM_vectorcall; |
1271 | case CC_X86Pascal: |
1272 | return llvm::dwarf::DW_CC_BORLAND_pascal; |
1273 | case CC_Win64: |
1274 | return llvm::dwarf::DW_CC_LLVM_Win64; |
1275 | case CC_X86_64SysV: |
1276 | return llvm::dwarf::DW_CC_LLVM_X86_64SysV; |
1277 | case CC_AAPCS: |
1278 | case CC_AArch64VectorCall: |
1279 | return llvm::dwarf::DW_CC_LLVM_AAPCS; |
1280 | case CC_AAPCS_VFP: |
1281 | return llvm::dwarf::DW_CC_LLVM_AAPCS_VFP; |
1282 | case CC_IntelOclBicc: |
1283 | return llvm::dwarf::DW_CC_LLVM_IntelOclBicc; |
1284 | case CC_SpirFunction: |
1285 | return llvm::dwarf::DW_CC_LLVM_SpirFunction; |
1286 | case CC_OpenCLKernel: |
1287 | return llvm::dwarf::DW_CC_LLVM_OpenCLKernel; |
1288 | case CC_Swift: |
1289 | return llvm::dwarf::DW_CC_LLVM_Swift; |
1290 | case CC_SwiftAsync: |
1291 | |
1292 | return llvm::dwarf::DW_CC_LLVM_Swift; |
1293 | case CC_PreserveMost: |
1294 | return llvm::dwarf::DW_CC_LLVM_PreserveMost; |
1295 | case CC_PreserveAll: |
1296 | return llvm::dwarf::DW_CC_LLVM_PreserveAll; |
1297 | case CC_X86RegCall: |
1298 | return llvm::dwarf::DW_CC_LLVM_X86RegCall; |
1299 | } |
1300 | return 0; |
1301 | } |
1302 | |
1303 | llvm::DIType *CGDebugInfo::CreateType(const FunctionType *Ty, |
1304 | llvm::DIFile *Unit) { |
1305 | SmallVector<llvm::Metadata *, 16> EltTys; |
1306 | |
1307 | |
1308 | EltTys.push_back(getOrCreateType(Ty->getReturnType(), Unit)); |
1309 | |
1310 | |
1311 | |
1312 | if (isa<FunctionNoProtoType>(Ty)) |
1313 | EltTys.push_back(DBuilder.createUnspecifiedParameter()); |
1314 | else if (const auto *FPT = dyn_cast<FunctionProtoType>(Ty)) { |
1315 | for (const QualType &ParamType : FPT->param_types()) |
1316 | EltTys.push_back(getOrCreateType(ParamType, Unit)); |
1317 | if (FPT->isVariadic()) |
1318 | EltTys.push_back(DBuilder.createUnspecifiedParameter()); |
1319 | } |
1320 | |
1321 | llvm::DITypeRefArray EltTypeArray = DBuilder.getOrCreateTypeArray(EltTys); |
1322 | return DBuilder.createSubroutineType(EltTypeArray, llvm::DINode::FlagZero, |
1323 | getDwarfCC(Ty->getCallConv())); |
1324 | } |
1325 | |
1326 | |
1327 | |
1328 | |
1329 | static llvm::DINode::DIFlags getAccessFlag(AccessSpecifier Access, |
1330 | const RecordDecl *RD) { |
1331 | AccessSpecifier Default = clang::AS_none; |
1332 | if (RD && RD->isClass()) |
1333 | Default = clang::AS_private; |
1334 | else if (RD && (RD->isStruct() || RD->isUnion())) |
1335 | Default = clang::AS_public; |
1336 | |
1337 | if (Access == Default) |
1338 | return llvm::DINode::FlagZero; |
1339 | |
1340 | switch (Access) { |
1341 | case clang::AS_private: |
1342 | return llvm::DINode::FlagPrivate; |
1343 | case clang::AS_protected: |
1344 | return llvm::DINode::FlagProtected; |
1345 | case clang::AS_public: |
1346 | return llvm::DINode::FlagPublic; |
1347 | case clang::AS_none: |
1348 | return llvm::DINode::FlagZero; |
1349 | } |
1350 | llvm_unreachable("unexpected access enumerator"); |
1351 | } |
1352 | |
1353 | llvm::DIType *CGDebugInfo::createBitFieldType(const FieldDecl *BitFieldDecl, |
1354 | llvm::DIScope *RecordTy, |
1355 | const RecordDecl *RD) { |
1356 | StringRef Name = BitFieldDecl->getName(); |
1357 | QualType Ty = BitFieldDecl->getType(); |
1358 | SourceLocation Loc = BitFieldDecl->getLocation(); |
1359 | llvm::DIFile *VUnit = getOrCreateFile(Loc); |
1360 | llvm::DIType *DebugType = getOrCreateType(Ty, VUnit); |
1361 | |
1362 | |
1363 | llvm::DIFile *File = getOrCreateFile(Loc); |
1364 | unsigned Line = getLineNumber(Loc); |
1365 | |
1366 | const CGBitFieldInfo &BitFieldInfo = |
1367 | CGM.getTypes().getCGRecordLayout(RD).getBitFieldInfo(BitFieldDecl); |
1368 | uint64_t SizeInBits = BitFieldInfo.Size; |
1369 | assert(SizeInBits > 0 && "found named 0-width bitfield"); |
1370 | uint64_t StorageOffsetInBits = |
1371 | CGM.getContext().toBits(BitFieldInfo.StorageOffset); |
1372 | uint64_t Offset = BitFieldInfo.Offset; |
1373 | |
1374 | |
1375 | |
1376 | if (CGM.getDataLayout().isBigEndian()) |
1377 | Offset = BitFieldInfo.StorageSize - BitFieldInfo.Size - Offset; |
1378 | uint64_t OffsetInBits = StorageOffsetInBits + Offset; |
1379 | llvm::DINode::DIFlags Flags = getAccessFlag(BitFieldDecl->getAccess(), RD); |
1380 | return DBuilder.createBitFieldMemberType( |
1381 | RecordTy, Name, File, Line, SizeInBits, OffsetInBits, StorageOffsetInBits, |
1382 | Flags, DebugType); |
1383 | } |
1384 | |
1385 | llvm::DIType * |
1386 | CGDebugInfo::createFieldType(StringRef name, QualType type, SourceLocation loc, |
1387 | AccessSpecifier AS, uint64_t offsetInBits, |
1388 | uint32_t AlignInBits, llvm::DIFile *tunit, |
1389 | llvm::DIScope *scope, const RecordDecl *RD) { |
1390 | llvm::DIType *debugType = getOrCreateType(type, tunit); |
1391 | |
1392 | |
1393 | llvm::DIFile *file = getOrCreateFile(loc); |
1394 | const unsigned line = getLineNumber(loc.isValid() ? loc : CurLoc); |
1395 | |
1396 | uint64_t SizeInBits = 0; |
1397 | auto Align = AlignInBits; |
1398 | if (!type->isIncompleteArrayType()) { |
1399 | TypeInfo TI = CGM.getContext().getTypeInfo(type); |
1400 | SizeInBits = TI.Width; |
1401 | if (!Align) |
1402 | Align = getTypeAlignIfRequired(type, CGM.getContext()); |
1403 | } |
1404 | |
1405 | llvm::DINode::DIFlags flags = getAccessFlag(AS, RD); |
1406 | return DBuilder.createMemberType(scope, name, file, line, SizeInBits, Align, |
1407 | offsetInBits, flags, debugType); |
1408 | } |
1409 | |
1410 | void CGDebugInfo::CollectRecordLambdaFields( |
1411 | const CXXRecordDecl *CXXDecl, SmallVectorImpl<llvm::Metadata *> &elements, |
1412 | llvm::DIType *RecordTy) { |
1413 | |
1414 | |
1415 | |
1416 | const ASTRecordLayout &layout = CGM.getContext().getASTRecordLayout(CXXDecl); |
1417 | RecordDecl::field_iterator Field = CXXDecl->field_begin(); |
1418 | unsigned fieldno = 0; |
1419 | for (CXXRecordDecl::capture_const_iterator I = CXXDecl->captures_begin(), |
1420 | E = CXXDecl->captures_end(); |
1421 | I != E; ++I, ++Field, ++fieldno) { |
1422 | const LambdaCapture &C = *I; |
1423 | if (C.capturesVariable()) { |
1424 | SourceLocation Loc = C.getLocation(); |
1425 | assert(!Field->isBitField() && "lambdas don't have bitfield members!"); |
1426 | VarDecl *V = C.getCapturedVar(); |
1427 | StringRef VName = V->getName(); |
1428 | llvm::DIFile *VUnit = getOrCreateFile(Loc); |
1429 | auto Align = getDeclAlignIfRequired(V, CGM.getContext()); |
1430 | llvm::DIType *FieldType = createFieldType( |
1431 | VName, Field->getType(), Loc, Field->getAccess(), |
1432 | layout.getFieldOffset(fieldno), Align, VUnit, RecordTy, CXXDecl); |
1433 | elements.push_back(FieldType); |
1434 | } else if (C.capturesThis()) { |
1435 | |
1436 | |
1437 | |
1438 | |
1439 | FieldDecl *f = *Field; |
1440 | llvm::DIFile *VUnit = getOrCreateFile(f->getLocation()); |
1441 | QualType type = f->getType(); |
1442 | llvm::DIType *fieldType = createFieldType( |
1443 | "this", type, f->getLocation(), f->getAccess(), |
1444 | layout.getFieldOffset(fieldno), VUnit, RecordTy, CXXDecl); |
1445 | |
1446 | elements.push_back(fieldType); |
1447 | } |
1448 | } |
1449 | } |
1450 | |
1451 | llvm::DIDerivedType * |
1452 | CGDebugInfo::CreateRecordStaticField(const VarDecl *Var, llvm::DIType *RecordTy, |
1453 | const RecordDecl *RD) { |
1454 | |
1455 | |
1456 | Var = Var->getCanonicalDecl(); |
1457 | llvm::DIFile *VUnit = getOrCreateFile(Var->getLocation()); |
1458 | llvm::DIType *VTy = getOrCreateType(Var->getType(), VUnit); |
1459 | |
1460 | unsigned LineNumber = getLineNumber(Var->getLocation()); |
1461 | StringRef VName = Var->getName(); |
1462 | llvm::Constant *C = nullptr; |
1463 | if (Var->getInit()) { |
1464 | const APValue *Value = Var->evaluateValue(); |
1465 | if (Value) { |
1466 | if (Value->isInt()) |
1467 | C = llvm::ConstantInt::get(CGM.getLLVMContext(), Value->getInt()); |
1468 | if (Value->isFloat()) |
1469 | C = llvm::ConstantFP::get(CGM.getLLVMContext(), Value->getFloat()); |
1470 | } |
1471 | } |
1472 | |
1473 | llvm::DINode::DIFlags Flags = getAccessFlag(Var->getAccess(), RD); |
1474 | auto Align = getDeclAlignIfRequired(Var, CGM.getContext()); |
1475 | llvm::DIDerivedType *GV = DBuilder.createStaticMemberType( |
1476 | RecordTy, VName, VUnit, LineNumber, VTy, Flags, C, Align); |
1477 | StaticDataMemberCache[Var->getCanonicalDecl()].reset(GV); |
1478 | return GV; |
1479 | } |
1480 | |
1481 | void CGDebugInfo::CollectRecordNormalField( |
1482 | const FieldDecl *field, uint64_t OffsetInBits, llvm::DIFile *tunit, |
1483 | SmallVectorImpl<llvm::Metadata *> &elements, llvm::DIType *RecordTy, |
1484 | const RecordDecl *RD) { |
1485 | StringRef name = field->getName(); |
1486 | QualType type = field->getType(); |
1487 | |
1488 | |
1489 | if (name.empty() && !type->isRecordType()) |
1490 | return; |
1491 | |
1492 | llvm::DIType *FieldType; |
1493 | if (field->isBitField()) { |
1494 | FieldType = createBitFieldType(field, RecordTy, RD); |
1495 | } else { |
1496 | auto Align = getDeclAlignIfRequired(field, CGM.getContext()); |
1497 | FieldType = |
1498 | createFieldType(name, type, field->getLocation(), field->getAccess(), |
1499 | OffsetInBits, Align, tunit, RecordTy, RD); |
1500 | } |
1501 | |
1502 | elements.push_back(FieldType); |
1503 | } |
1504 | |
1505 | void CGDebugInfo::CollectRecordNestedType( |
1506 | const TypeDecl *TD, SmallVectorImpl<llvm::Metadata *> &elements) { |
1507 | QualType Ty = CGM.getContext().getTypeDeclType(TD); |
1508 | |
1509 | if (isa<InjectedClassNameType>(Ty)) |
1510 | return; |
1511 | SourceLocation Loc = TD->getLocation(); |
1512 | llvm::DIType *nestedType = getOrCreateType(Ty, getOrCreateFile(Loc)); |
1513 | elements.push_back(nestedType); |
1514 | } |
1515 | |
1516 | void CGDebugInfo::CollectRecordFields( |
1517 | const RecordDecl *record, llvm::DIFile *tunit, |
1518 | SmallVectorImpl<llvm::Metadata *> &elements, |
1519 | llvm::DICompositeType *RecordTy) { |
1520 | const auto *CXXDecl = dyn_cast<CXXRecordDecl>(record); |
1521 | |
1522 | if (CXXDecl && CXXDecl->isLambda()) |
1523 | CollectRecordLambdaFields(CXXDecl, elements, RecordTy); |
1524 | else { |
1525 | const ASTRecordLayout &layout = CGM.getContext().getASTRecordLayout(record); |
1526 | |
1527 | |
1528 | unsigned fieldNo = 0; |
1529 | |
1530 | |
1531 | |
1532 | for (const auto *I : record->decls()) |
1533 | if (const auto *V = dyn_cast<VarDecl>(I)) { |
1534 | if (V->hasAttr<NoDebugAttr>()) |
1535 | continue; |
1536 | |
1537 | |
1538 | |
1539 | if (CGM.getCodeGenOpts().EmitCodeView && |
1540 | isa<VarTemplateSpecializationDecl>(V)) |
1541 | continue; |
1542 | |
1543 | if (isa<VarTemplatePartialSpecializationDecl>(V)) |
1544 | continue; |
1545 | |
1546 | |
1547 | auto MI = StaticDataMemberCache.find(V->getCanonicalDecl()); |
1548 | if (MI != StaticDataMemberCache.end()) { |
1549 | assert(MI->second && |
1550 | "Static data member declaration should still exist"); |
1551 | elements.push_back(MI->second); |
1552 | } else { |
1553 | auto Field = CreateRecordStaticField(V, RecordTy, record); |
1554 | elements.push_back(Field); |
1555 | } |
1556 | } else if (const auto *field = dyn_cast<FieldDecl>(I)) { |
1557 | CollectRecordNormalField(field, layout.getFieldOffset(fieldNo), tunit, |
1558 | elements, RecordTy, record); |
1559 | |
1560 | |
1561 | ++fieldNo; |
1562 | } else if (CGM.getCodeGenOpts().EmitCodeView) { |
1563 | |
1564 | |
1565 | if (const auto *nestedType = dyn_cast<TypeDecl>(I)) |
1566 | if (!nestedType->isImplicit() && |
1567 | nestedType->getDeclContext() == record) |
1568 | CollectRecordNestedType(nestedType, elements); |
1569 | } |
1570 | } |
1571 | } |
1572 | |
1573 | llvm::DISubroutineType * |
1574 | CGDebugInfo::getOrCreateMethodType(const CXXMethodDecl *Method, |
1575 | llvm::DIFile *Unit, bool decl) { |
1576 | const FunctionProtoType *Func = Method->getType()->getAs<FunctionProtoType>(); |
| 4 | | Assuming the object is not a 'FunctionProtoType' | |
|
| 5 | | 'Func' initialized to a null pointer value | |
|
1577 | if (Method->isStatic()) |
| 6 | | Assuming the condition is false | |
|
| |
1578 | return cast_or_null<llvm::DISubroutineType>( |
1579 | getOrCreateType(QualType(Func, 0), Unit)); |
1580 | return getOrCreateInstanceMethodType(Method->getThisType(), Func, Unit, decl); |
| 8 | | Passing null pointer value via 2nd parameter 'Func' | |
|
| 9 | | Calling 'CGDebugInfo::getOrCreateInstanceMethodType' | |
|
1581 | } |
1582 | |
1583 | llvm::DISubroutineType * |
1584 | CGDebugInfo::getOrCreateInstanceMethodType(QualType ThisPtr, |
1585 | const FunctionProtoType *Func, |
1586 | llvm::DIFile *Unit, bool decl) { |
1587 | |
1588 | llvm::DITypeRefArray Args( |
1589 | cast<llvm::DISubroutineType>(getOrCreateType(QualType(Func, 0), Unit)) |
1590 | ->getTypeArray()); |
1591 | assert(Args.size() && "Invalid number of arguments!"); |
1592 | |
1593 | SmallVector<llvm::Metadata *, 16> Elts; |
1594 | |
1595 | QualType temp = Func->getReturnType(); |
| 10 | | Called C++ object pointer is null |
|
1596 | if (temp->getTypeClass() == Type::Auto && decl) |
1597 | Elts.push_back(CreateType(cast<AutoType>(temp))); |
1598 | else |
1599 | Elts.push_back(Args[0]); |
1600 | |
1601 | |
1602 | const CXXRecordDecl *RD = ThisPtr->getPointeeCXXRecordDecl(); |
1603 | if (isa<ClassTemplateSpecializationDecl>(RD)) { |
1604 | |
1605 | const PointerType *ThisPtrTy = cast<PointerType>(ThisPtr); |
1606 | QualType PointeeTy = ThisPtrTy->getPointeeType(); |
1607 | unsigned AS = CGM.getContext().getTargetAddressSpace(PointeeTy); |
1608 | uint64_t Size = CGM.getTarget().getPointerWidth(AS); |
1609 | auto Align = getTypeAlignIfRequired(ThisPtrTy, CGM.getContext()); |
1610 | llvm::DIType *PointeeType = getOrCreateType(PointeeTy, Unit); |
1611 | llvm::DIType *ThisPtrType = |
1612 | DBuilder.createPointerType(PointeeType, Size, Align); |
1613 | TypeCache[ThisPtr.getAsOpaquePtr()].reset(ThisPtrType); |
1614 | |
1615 | |
1616 | |
1617 | ThisPtrType = DBuilder.createObjectPointerType(ThisPtrType); |
1618 | Elts.push_back(ThisPtrType); |
1619 | } else { |
1620 | llvm::DIType *ThisPtrType = getOrCreateType(ThisPtr, Unit); |
1621 | TypeCache[ThisPtr.getAsOpaquePtr()].reset(ThisPtrType); |
1622 | ThisPtrType = DBuilder.createObjectPointerType(ThisPtrType); |
1623 | Elts.push_back(ThisPtrType); |
1624 | } |
1625 | |
1626 | |
1627 | for (unsigned i = 1, e = Args.size(); i != e; ++i) |
1628 | Elts.push_back(Args[i]); |
1629 | |
1630 | llvm::DITypeRefArray EltTypeArray = DBuilder.getOrCreateTypeArray(Elts); |
1631 | |
1632 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
1633 | if (Func->getExtProtoInfo().RefQualifier == RQ_LValue) |
1634 | Flags |= llvm::DINode::FlagLValueReference; |
1635 | if (Func->getExtProtoInfo().RefQualifier == RQ_RValue) |
1636 | Flags |= llvm::DINode::FlagRValueReference; |
1637 | |
1638 | return DBuilder.createSubroutineType(EltTypeArray, Flags, |
1639 | getDwarfCC(Func->getCallConv())); |
1640 | } |
1641 | |
1642 | |
1643 | |
1644 | static bool isFunctionLocalClass(const CXXRecordDecl *RD) { |
1645 | if (const auto *NRD = dyn_cast<CXXRecordDecl>(RD->getDeclContext())) |
1646 | return isFunctionLocalClass(NRD); |
1647 | if (isa<FunctionDecl>(RD->getDeclContext())) |
1648 | return true; |
1649 | return false; |
1650 | } |
1651 | |
1652 | llvm::DISubprogram *CGDebugInfo::CreateCXXMemberFunction( |
1653 | const CXXMethodDecl *Method, llvm::DIFile *Unit, llvm::DIType *RecordTy) { |
1654 | bool IsCtorOrDtor = |
1655 | isa<CXXConstructorDecl>(Method) || isa<CXXDestructorDecl>(Method); |
| 1 | Assuming 'Method' is not a 'CXXConstructorDecl' | |
|
| 2 | | Assuming 'Method' is not a 'CXXDestructorDecl' | |
|
1656 | |
1657 | StringRef MethodName = getFunctionName(Method); |
1658 | llvm::DISubroutineType *MethodTy = getOrCreateMethodType(Method, Unit, true); |
| 3 | | Calling 'CGDebugInfo::getOrCreateMethodType' | |
|
1659 | |
1660 | |
1661 | |
1662 | StringRef MethodLinkageName; |
1663 | |
1664 | |
1665 | |
1666 | |
1667 | |
1668 | if (!IsCtorOrDtor && !isFunctionLocalClass(Method->getParent())) |
1669 | MethodLinkageName = CGM.getMangledName(Method); |
1670 | |
1671 | |
1672 | llvm::DIFile *MethodDefUnit = nullptr; |
1673 | unsigned MethodLine = 0; |
1674 | if (!Method->isImplicit()) { |
1675 | MethodDefUnit = getOrCreateFile(Method->getLocation()); |
1676 | MethodLine = getLineNumber(Method->getLocation()); |
1677 | } |
1678 | |
1679 | |
1680 | llvm::DIType *ContainingType = nullptr; |
1681 | unsigned VIndex = 0; |
1682 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
1683 | llvm::DISubprogram::DISPFlags SPFlags = llvm::DISubprogram::SPFlagZero; |
1684 | int ThisAdjustment = 0; |
1685 | |
1686 | if (Method->isVirtual()) { |
1687 | if (Method->isPure()) |
1688 | SPFlags |= llvm::DISubprogram::SPFlagPureVirtual; |
1689 | else |
1690 | SPFlags |= llvm::DISubprogram::SPFlagVirtual; |
1691 | |
1692 | if (CGM.getTarget().getCXXABI().isItaniumFamily()) { |
1693 | |
1694 | |
1695 | if (!isa<CXXDestructorDecl>(Method)) |
1696 | VIndex = CGM.getItaniumVTableContext().getMethodVTableIndex(Method); |
1697 | } else { |
1698 | |
1699 | |
1700 | const auto *DD = dyn_cast<CXXDestructorDecl>(Method); |
1701 | GlobalDecl GD = DD ? GlobalDecl(DD, Dtor_Deleting) : GlobalDecl(Method); |
1702 | MethodVFTableLocation ML = |
1703 | CGM.getMicrosoftVTableContext().getMethodVFTableLocation(GD); |
1704 | VIndex = ML.Index; |
1705 | |
1706 | |
1707 | |
1708 | |
1709 | |
1710 | |
1711 | if (Method->size_overridden_methods() == 0) |
1712 | Flags |= llvm::DINode::FlagIntroducedVirtual; |
1713 | |
1714 | |
1715 | |
1716 | |
1717 | ThisAdjustment = CGM.getCXXABI() |
1718 | .getVirtualFunctionPrologueThisAdjustment(GD) |
1719 | .getQuantity(); |
1720 | } |
1721 | ContainingType = RecordTy; |
1722 | } |
1723 | |
1724 | |
1725 | |
1726 | auto checkAttrDeleted = [&](const auto *Method) { |
1727 | if (Method->getCanonicalDecl()->isDeleted()) |
1728 | SPFlags |= llvm::DISubprogram::SPFlagDeleted; |
1729 | }; |
1730 | |
1731 | switch (Method->getKind()) { |
1732 | |
1733 | case Decl::CXXConstructor: |
1734 | case Decl::CXXDestructor: |
1735 | checkAttrDeleted(Method); |
1736 | break; |
1737 | case Decl::CXXMethod: |
1738 | if (Method->isCopyAssignmentOperator() || |
1739 | Method->isMoveAssignmentOperator()) |
1740 | checkAttrDeleted(Method); |
1741 | break; |
1742 | default: |
1743 | break; |
1744 | } |
1745 | |
1746 | if (Method->isNoReturn()) |
1747 | Flags |= llvm::DINode::FlagNoReturn; |
1748 | |
1749 | if (Method->isStatic()) |
1750 | Flags |= llvm::DINode::FlagStaticMember; |
1751 | if (Method->isImplicit()) |
1752 | Flags |= llvm::DINode::FlagArtificial; |
1753 | Flags |= getAccessFlag(Method->getAccess(), Method->getParent()); |
1754 | if (const auto *CXXC = dyn_cast<CXXConstructorDecl>(Method)) { |
1755 | if (CXXC->isExplicit()) |
1756 | Flags |= llvm::DINode::FlagExplicit; |
1757 | } else if (const auto *CXXC = dyn_cast<CXXConversionDecl>(Method)) { |
1758 | if (CXXC->isExplicit()) |
1759 | Flags |= llvm::DINode::FlagExplicit; |
1760 | } |
1761 | if (Method->hasPrototype()) |
1762 | Flags |= llvm::DINode::FlagPrototyped; |
1763 | if (Method->getRefQualifier() == RQ_LValue) |
1764 | Flags |= llvm::DINode::FlagLValueReference; |
1765 | if (Method->getRefQualifier() == RQ_RValue) |
1766 | Flags |= llvm::DINode::FlagRValueReference; |
1767 | if (!Method->isExternallyVisible()) |
1768 | SPFlags |= llvm::DISubprogram::SPFlagLocalToUnit; |
1769 | if (CGM.getLangOpts().Optimize) |
1770 | SPFlags |= llvm::DISubprogram::SPFlagOptimized; |
1771 | |
1772 | |
1773 | |
1774 | if (DebugKind == codegenoptions::DebugInfoConstructor) |
1775 | if (const CXXConstructorDecl *CD = dyn_cast<CXXConstructorDecl>(Method)) |
1776 | completeUnusedClass(*CD->getParent()); |
1777 | |
1778 | llvm::DINodeArray TParamsArray = CollectFunctionTemplateParams(Method, Unit); |
1779 | llvm::DISubprogram *SP = DBuilder.createMethod( |
1780 | RecordTy, MethodName, MethodLinkageName, MethodDefUnit, MethodLine, |
1781 | MethodTy, VIndex, ThisAdjustment, ContainingType, Flags, SPFlags, |
1782 | TParamsArray.get()); |
1783 | |
1784 | SPCache[Method->getCanonicalDecl()].reset(SP); |
1785 | |
1786 | return SP; |
1787 | } |
1788 | |
1789 | void CGDebugInfo::CollectCXXMemberFunctions( |
1790 | const CXXRecordDecl *RD, llvm::DIFile *Unit, |
1791 | SmallVectorImpl<llvm::Metadata *> &EltTys, llvm::DIType *RecordTy) { |
1792 | |
1793 | |
1794 | |
1795 | |
1796 | for (const auto *I : RD->decls()) { |
1797 | const auto *Method = dyn_cast<CXXMethodDecl>(I); |
1798 | |
1799 | |
1800 | |
1801 | |
1802 | |
1803 | |
1804 | |
1805 | |
1806 | |
1807 | |
1808 | if (!Method || Method->isImplicit() || Method->hasAttr<NoDebugAttr>()) |
1809 | continue; |
1810 | |
1811 | if (Method->getType()->castAs<FunctionProtoType>()->getContainedAutoType()) |
1812 | continue; |
1813 | |
1814 | |
1815 | |
1816 | |
1817 | |
1818 | |
1819 | |
1820 | auto MI = SPCache.find(Method->getCanonicalDecl()); |
1821 | EltTys.push_back(MI == SPCache.end() |
1822 | ? CreateCXXMemberFunction(Method, Unit, RecordTy) |
1823 | : static_cast<llvm::Metadata *>(MI->second)); |
1824 | } |
1825 | } |
1826 | |
1827 | void CGDebugInfo::CollectCXXBases(const CXXRecordDecl *RD, llvm::DIFile *Unit, |
1828 | SmallVectorImpl<llvm::Metadata *> &EltTys, |
1829 | llvm::DIType *RecordTy) { |
1830 | llvm::DenseSet<CanonicalDeclPtr<const CXXRecordDecl>> SeenTypes; |
1831 | CollectCXXBasesAux(RD, Unit, EltTys, RecordTy, RD->bases(), SeenTypes, |
1832 | llvm::DINode::FlagZero); |
1833 | |
1834 | |
1835 | |
1836 | if (CGM.getCodeGenOpts().EmitCodeView) { |
1837 | CollectCXXBasesAux(RD, Unit, EltTys, RecordTy, RD->vbases(), SeenTypes, |
1838 | llvm::DINode::FlagIndirectVirtualBase); |
1839 | } |
1840 | } |
1841 | |
1842 | void CGDebugInfo::CollectCXXBasesAux( |
1843 | const CXXRecordDecl *RD, llvm::DIFile *Unit, |
1844 | SmallVectorImpl<llvm::Metadata *> &EltTys, llvm::DIType *RecordTy, |
1845 | const CXXRecordDecl::base_class_const_range &Bases, |
1846 | llvm::DenseSet<CanonicalDeclPtr<const CXXRecordDecl>> &SeenTypes, |
1847 | llvm::DINode::DIFlags StartingFlags) { |
1848 | const ASTRecordLayout &RL = CGM.getContext().getASTRecordLayout(RD); |
1849 | for (const auto &BI : Bases) { |
1850 | const auto *Base = |
1851 | cast<CXXRecordDecl>(BI.getType()->castAs<RecordType>()->getDecl()); |
1852 | if (!SeenTypes.insert(Base).second) |
1853 | continue; |
1854 | auto *BaseTy = getOrCreateType(BI.getType(), Unit); |
1855 | llvm::DINode::DIFlags BFlags = StartingFlags; |
1856 | uint64_t BaseOffset; |
1857 | uint32_t VBPtrOffset = 0; |
1858 | |
1859 | if (BI.isVirtual()) { |
1860 | if (CGM.getTarget().getCXXABI().isItaniumFamily()) { |
1861 | |
1862 | |
1863 | BaseOffset = 0 - CGM.getItaniumVTableContext() |
1864 | .getVirtualBaseOffsetOffset(RD, Base) |
1865 | .getQuantity(); |
1866 | } else { |
1867 | |
1868 | |
1869 | BaseOffset = |
1870 | 4 * CGM.getMicrosoftVTableContext().getVBTableIndex(RD, Base); |
1871 | VBPtrOffset = CGM.getContext() |
1872 | .getASTRecordLayout(RD) |
1873 | .getVBPtrOffset() |
1874 | .getQuantity(); |
1875 | } |
1876 | BFlags |= llvm::DINode::FlagVirtual; |
1877 | } else |
1878 | BaseOffset = CGM.getContext().toBits(RL.getBaseClassOffset(Base)); |
1879 | |
1880 | |
1881 | |
1882 | BFlags |= getAccessFlag(BI.getAccessSpecifier(), RD); |
1883 | llvm::DIType *DTy = DBuilder.createInheritance(RecordTy, BaseTy, BaseOffset, |
1884 | VBPtrOffset, BFlags); |
1885 | EltTys.push_back(DTy); |
1886 | } |
1887 | } |
1888 | |
1889 | llvm::DINodeArray |
1890 | CGDebugInfo::CollectTemplateParams(const TemplateParameterList *TPList, |
1891 | ArrayRef<TemplateArgument> TAList, |
1892 | llvm::DIFile *Unit) { |
1893 | SmallVector<llvm::Metadata *, 16> TemplateParams; |
1894 | for (unsigned i = 0, e = TAList.size(); i != e; ++i) { |
1895 | const TemplateArgument &TA = TAList[i]; |
1896 | StringRef Name; |
1897 | bool defaultParameter = false; |
1898 | if (TPList) |
1899 | Name = TPList->getParam(i)->getName(); |
1900 | switch (TA.getKind()) { |
1901 | case TemplateArgument::Type: { |
1902 | llvm::DIType *TTy = getOrCreateType(TA.getAsType(), Unit); |
1903 | |
1904 | if (TPList) |
1905 | if (auto *templateType = |
1906 | dyn_cast_or_null<TemplateTypeParmDecl>(TPList->getParam(i))) |
1907 | if (templateType->hasDefaultArgument()) |
1908 | defaultParameter = |
1909 | templateType->getDefaultArgument() == TA.getAsType(); |
1910 | |
1911 | TemplateParams.push_back(DBuilder.createTemplateTypeParameter( |
1912 | TheCU, Name, TTy, defaultParameter)); |
1913 | |
1914 | } break; |
1915 | case TemplateArgument::Integral: { |
1916 | llvm::DIType *TTy = getOrCreateType(TA.getIntegralType(), Unit); |
1917 | if (TPList && CGM.getCodeGenOpts().DwarfVersion >= 5) |
1918 | if (auto *templateType = |
1919 | dyn_cast_or_null<NonTypeTemplateParmDecl>(TPList->getParam(i))) |
1920 | if (templateType->hasDefaultArgument() && |
1921 | !templateType->getDefaultArgument()->isValueDependent()) |
1922 | defaultParameter = llvm::APSInt::isSameValue( |
1923 | templateType->getDefaultArgument()->EvaluateKnownConstInt( |
1924 | CGM.getContext()), |
1925 | TA.getAsIntegral()); |
1926 | |
1927 | TemplateParams.push_back(DBuilder.createTemplateValueParameter( |
1928 | TheCU, Name, TTy, defaultParameter, |
1929 | llvm::ConstantInt::get(CGM.getLLVMContext(), TA.getAsIntegral()))); |
1930 | } break; |
1931 | case TemplateArgument::Declaration: { |
1932 | const ValueDecl *D = TA.getAsDecl(); |
1933 | QualType T = TA.getParamTypeForDecl().getDesugaredType(CGM.getContext()); |
1934 | llvm::DIType *TTy = getOrCreateType(T, Unit); |
1935 | llvm::Constant *V = nullptr; |
1936 | |
1937 | |
1938 | if (!CGM.getLangOpts().CUDA || CGM.getLangOpts().CUDAIsDevice || |
1939 | !D->hasAttr<CUDADeviceAttr>()) { |
1940 | const CXXMethodDecl *MD; |
1941 | |
1942 | |
1943 | if (const auto *VD = dyn_cast<VarDecl>(D)) |
1944 | V = CGM.GetAddrOfGlobalVar(VD); |
1945 | |
1946 | |
1947 | else if ((MD = dyn_cast<CXXMethodDecl>(D)) && MD->isInstance()) |
1948 | V = CGM.getCXXABI().EmitMemberFunctionPointer(MD); |
1949 | else if (const auto *FD = dyn_cast<FunctionDecl>(D)) |
1950 | V = CGM.GetAddrOfFunction(FD); |
1951 | |
1952 | |
1953 | else if (const auto *MPT = |
1954 | dyn_cast<MemberPointerType>(T.getTypePtr())) { |
1955 | |
1956 | |
1957 | |
1958 | uint64_t fieldOffset = CGM.getContext().getFieldOffset(D); |
1959 | CharUnits chars = |
1960 | CGM.getContext().toCharUnitsFromBits((int64_t)fieldOffset); |
1961 | V = CGM.getCXXABI().EmitMemberDataPointer(MPT, chars); |
1962 | } else if (const auto *GD = dyn_cast<MSGuidDecl>(D)) { |
1963 | V = CGM.GetAddrOfMSGuidDecl(GD).getPointer(); |
1964 | } else if (const auto *TPO = dyn_cast<TemplateParamObjectDecl>(D)) { |
1965 | if (T->isRecordType()) |
1966 | V = ConstantEmitter(CGM).emitAbstract( |
1967 | SourceLocation(), TPO->getValue(), TPO->getType()); |
1968 | else |
1969 | V = CGM.GetAddrOfTemplateParamObject(TPO).getPointer(); |
1970 | } |
1971 | assert(V && "Failed to find template parameter pointer"); |
1972 | V = V->stripPointerCasts(); |
1973 | } |
1974 | TemplateParams.push_back(DBuilder.createTemplateValueParameter( |
1975 | TheCU, Name, TTy, defaultParameter, cast_or_null<llvm::Constant>(V))); |
1976 | } break; |
1977 | case TemplateArgument::NullPtr: { |
1978 | QualType T = TA.getNullPtrType(); |
1979 | llvm::DIType *TTy = getOrCreateType(T, Unit); |
1980 | llvm::Constant *V = nullptr; |
1981 | |
1982 | |
1983 | if (const auto *MPT = dyn_cast<MemberPointerType>(T.getTypePtr())) |
1984 | |
1985 | |
1986 | |
1987 | |
1988 | |
1989 | if (MPT->isMemberDataPointer()) |
1990 | V = CGM.getCXXABI().EmitNullMemberPointer(MPT); |
1991 | if (!V) |
1992 | V = llvm::ConstantInt::get(CGM.Int8Ty, 0); |
1993 | TemplateParams.push_back(DBuilder.createTemplateValueParameter( |
1994 | TheCU, Name, TTy, defaultParameter, V)); |
1995 | } break; |
1996 | case TemplateArgument::Template: |
1997 | TemplateParams.push_back(DBuilder.createTemplateTemplateParameter( |
1998 | TheCU, Name, nullptr, |
1999 | TA.getAsTemplate().getAsTemplateDecl()->getQualifiedNameAsString())); |
2000 | break; |
2001 | case TemplateArgument::Pack: |
2002 | TemplateParams.push_back(DBuilder.createTemplateParameterPack( |
2003 | TheCU, Name, nullptr, |
2004 | CollectTemplateParams(nullptr, TA.getPackAsArray(), Unit))); |
2005 | break; |
2006 | case TemplateArgument::Expression: { |
2007 | const Expr *E = TA.getAsExpr(); |
2008 | QualType T = E->getType(); |
2009 | if (E->isGLValue()) |
2010 | T = CGM.getContext().getLValueReferenceType(T); |
2011 | llvm::Constant *V = ConstantEmitter(CGM).emitAbstract(E, T); |
2012 | assert(V && "Expression in template argument isn't constant"); |
2013 | llvm::DIType *TTy = getOrCreateType(T, Unit); |
2014 | TemplateParams.push_back(DBuilder.createTemplateValueParameter( |
2015 | TheCU, Name, TTy, defaultParameter, V->stripPointerCasts())); |
2016 | } break; |
2017 | |
2018 | case TemplateArgument::TemplateExpansion: |
2019 | case TemplateArgument::Null: |
2020 | llvm_unreachable( |
2021 | "These argument types shouldn't exist in concrete types"); |
2022 | } |
2023 | } |
2024 | return DBuilder.getOrCreateArray(TemplateParams); |
2025 | } |
2026 | |
2027 | llvm::DINodeArray |
2028 | CGDebugInfo::CollectFunctionTemplateParams(const FunctionDecl *FD, |
2029 | llvm::DIFile *Unit) { |
2030 | if (FD->getTemplatedKind() == |
2031 | FunctionDecl::TK_FunctionTemplateSpecialization) { |
2032 | const TemplateParameterList *TList = FD->getTemplateSpecializationInfo() |
2033 | ->getTemplate() |
2034 | ->getTemplateParameters(); |
2035 | return CollectTemplateParams( |
2036 | TList, FD->getTemplateSpecializationArgs()->asArray(), Unit); |
2037 | } |
2038 | return llvm::DINodeArray(); |
2039 | } |
2040 | |
2041 | llvm::DINodeArray CGDebugInfo::CollectVarTemplateParams(const VarDecl *VL, |
2042 | llvm::DIFile *Unit) { |
2043 | |
2044 | |
2045 | |
2046 | auto *TS = dyn_cast<VarTemplateSpecializationDecl>(VL); |
2047 | if (!TS) |
2048 | return llvm::DINodeArray(); |
2049 | VarTemplateDecl *T = TS->getSpecializedTemplate(); |
2050 | const TemplateParameterList *TList = T->getTemplateParameters(); |
2051 | auto TA = TS->getTemplateArgs().asArray(); |
2052 | return CollectTemplateParams(TList, TA, Unit); |
2053 | } |
2054 | |
2055 | llvm::DINodeArray CGDebugInfo::CollectCXXTemplateParams( |
2056 | const ClassTemplateSpecializationDecl *TSpecial, llvm::DIFile *Unit) { |
2057 | |
2058 | |
2059 | |
2060 | TemplateParameterList *TPList = |
2061 | TSpecial->getSpecializedTemplate()->getTemplateParameters(); |
2062 | const TemplateArgumentList &TAList = TSpecial->getTemplateArgs(); |
2063 | return CollectTemplateParams(TPList, TAList.asArray(), Unit); |
2064 | } |
2065 | |
2066 | llvm::DIType *CGDebugInfo::getOrCreateVTablePtrType(llvm::DIFile *Unit) { |
2067 | if (VTablePtrType) |
2068 | return VTablePtrType; |
2069 | |
2070 | ASTContext &Context = CGM.getContext(); |
2071 | |
2072 | |
2073 | llvm::Metadata *STy = getOrCreateType(Context.IntTy, Unit); |
2074 | llvm::DITypeRefArray SElements = DBuilder.getOrCreateTypeArray(STy); |
2075 | llvm::DIType *SubTy = DBuilder.createSubroutineType(SElements); |
2076 | unsigned Size = Context.getTypeSize(Context.VoidPtrTy); |
2077 | unsigned VtblPtrAddressSpace = CGM.getTarget().getVtblPtrAddressSpace(); |
2078 | Optional<unsigned> DWARFAddressSpace = |
2079 | CGM.getTarget().getDWARFAddressSpace(VtblPtrAddressSpace); |
2080 | |
2081 | llvm::DIType *vtbl_ptr_type = DBuilder.createPointerType( |
2082 | SubTy, Size, 0, DWARFAddressSpace, "__vtbl_ptr_type"); |
2083 | VTablePtrType = DBuilder.createPointerType(vtbl_ptr_type, Size); |
2084 | return VTablePtrType; |
2085 | } |
2086 | |
2087 | StringRef CGDebugInfo::getVTableName(const CXXRecordDecl *RD) { |
2088 | |
2089 | return internString("_vptr$", RD->getNameAsString()); |
2090 | } |
2091 | |
2092 | StringRef CGDebugInfo::getDynamicInitializerName(const VarDecl *VD, |
2093 | DynamicInitKind StubKind, |
2094 | llvm::Function *InitFn) { |
2095 | |
2096 | |
2097 | if (!CGM.getCodeGenOpts().EmitCodeView || |
2098 | StubKind == DynamicInitKind::GlobalArrayDestructor) |
2099 | return InitFn->getName(); |
2100 | |
2101 | |
2102 | |
2103 | |
2104 | |
2105 | SmallString<128> QualifiedGV; |
2106 | StringRef Quals; |
2107 | StringRef GVName; |
2108 | { |
2109 | llvm::raw_svector_ostream OS(QualifiedGV); |
2110 | VD->printQualifiedName(OS, getPrintingPolicy()); |
2111 | std::tie(Quals, GVName) = OS.str().rsplit("::"); |
2112 | if (GVName.empty()) |
2113 | std::swap(Quals, GVName); |
2114 | } |
2115 | |
2116 | SmallString<128> InitName; |
2117 | llvm::raw_svector_ostream OS(InitName); |
2118 | if (!Quals.empty()) |
2119 | OS << Quals << "::"; |
2120 | |
2121 | switch (StubKind) { |
2122 | case DynamicInitKind::NoStub: |
2123 | case DynamicInitKind::GlobalArrayDestructor: |
2124 | llvm_unreachable("not an initializer"); |
2125 | case DynamicInitKind::Initializer: |
2126 | OS << "`dynamic initializer for '"; |
2127 | break; |
2128 | case DynamicInitKind::AtExit: |
2129 | OS << "`dynamic atexit destructor for '"; |
2130 | break; |
2131 | } |
2132 | |
2133 | OS << GVName; |
2134 | |
2135 | |
2136 | if (const auto *VTpl = dyn_cast<VarTemplateSpecializationDecl>(VD)) { |
2137 | printTemplateArgumentList(OS, VTpl->getTemplateArgs().asArray(), |
2138 | getPrintingPolicy()); |
2139 | } |
2140 | |
2141 | OS << '\''; |
2142 | |
2143 | return internString(OS.str()); |
2144 | } |
2145 | |
2146 | void CGDebugInfo::CollectVTableInfo(const CXXRecordDecl *RD, llvm::DIFile *Unit, |
2147 | SmallVectorImpl<llvm::Metadata *> &EltTys) { |
2148 | |
2149 | if (!RD->isDynamicClass()) |
2150 | return; |
2151 | |
2152 | |
2153 | |
2154 | |
2155 | |
2156 | const ASTRecordLayout &RL = CGM.getContext().getASTRecordLayout(RD); |
2157 | if (!RL.hasExtendableVFPtr()) |
2158 | return; |
2159 | |
2160 | |
2161 | |
2162 | |
2163 | llvm::DIType *VPtrTy = nullptr; |
2164 | bool NeedVTableShape = CGM.getCodeGenOpts().EmitCodeView && |
2165 | CGM.getTarget().getCXXABI().isMicrosoft(); |
2166 | if (NeedVTableShape) { |
2167 | uint64_t PtrWidth = |
2168 | CGM.getContext().getTypeSize(CGM.getContext().VoidPtrTy); |
2169 | const VTableLayout &VFTLayout = |
2170 | CGM.getMicrosoftVTableContext().getVFTableLayout(RD, CharUnits::Zero()); |
2171 | unsigned VSlotCount = |
2172 | VFTLayout.vtable_components().size() - CGM.getLangOpts().RTTIData; |
2173 | unsigned VTableWidth = PtrWidth * VSlotCount; |
2174 | unsigned VtblPtrAddressSpace = CGM.getTarget().getVtblPtrAddressSpace(); |
2175 | Optional<unsigned> DWARFAddressSpace = |
2176 | CGM.getTarget().getDWARFAddressSpace(VtblPtrAddressSpace); |
2177 | |
2178 | |
2179 | llvm::DIType *VTableType = DBuilder.createPointerType( |
2180 | nullptr, VTableWidth, 0, DWARFAddressSpace, "__vtbl_ptr_type"); |
2181 | EltTys.push_back(VTableType); |
2182 | |
2183 | |
2184 | VPtrTy = DBuilder.createPointerType(VTableType, PtrWidth); |
2185 | } |
2186 | |
2187 | |
2188 | if (RL.getPrimaryBase()) |
2189 | return; |
2190 | |
2191 | if (!VPtrTy) |
2192 | VPtrTy = getOrCreateVTablePtrType(Unit); |
2193 | |
2194 | unsigned Size = CGM.getContext().getTypeSize(CGM.getContext().VoidPtrTy); |
2195 | llvm::DIType *VPtrMember = |
2196 | DBuilder.createMemberType(Unit, getVTableName(RD), Unit, 0, Size, 0, 0, |
2197 | llvm::DINode::FlagArtificial, VPtrTy); |
2198 | EltTys.push_back(VPtrMember); |
2199 | } |
2200 | |
2201 | llvm::DIType *CGDebugInfo::getOrCreateRecordType(QualType RTy, |
2202 | SourceLocation Loc) { |
2203 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
2204 | llvm::DIType *T = getOrCreateType(RTy, getOrCreateFile(Loc)); |
2205 | return T; |
2206 | } |
2207 | |
2208 | llvm::DIType *CGDebugInfo::getOrCreateInterfaceType(QualType D, |
2209 | SourceLocation Loc) { |
2210 | return getOrCreateStandaloneType(D, Loc); |
2211 | } |
2212 | |
2213 | llvm::DIType *CGDebugInfo::getOrCreateStandaloneType(QualType D, |
2214 | SourceLocation Loc) { |
2215 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
2216 | assert(!D.isNull() && "null type"); |
2217 | llvm::DIType *T = getOrCreateType(D, getOrCreateFile(Loc)); |
2218 | assert(T && "could not create debug info for type"); |
2219 | |
2220 | RetainedTypes.push_back(D.getAsOpaquePtr()); |
2221 | return T; |
2222 | } |
2223 | |
2224 | void CGDebugInfo::addHeapAllocSiteMetadata(llvm::CallBase *CI, |
2225 | QualType AllocatedTy, |
2226 | SourceLocation Loc) { |
2227 | if (CGM.getCodeGenOpts().getDebugInfo() <= |
2228 | codegenoptions::DebugLineTablesOnly) |
2229 | return; |
2230 | llvm::MDNode *node; |
2231 | if (AllocatedTy->isVoidType()) |
2232 | node = llvm::MDNode::get(CGM.getLLVMContext(), None); |
2233 | else |
2234 | node = getOrCreateType(AllocatedTy, getOrCreateFile(Loc)); |
2235 | |
2236 | CI->setMetadata("heapallocsite", node); |
2237 | } |
2238 | |
2239 | void CGDebugInfo::completeType(const EnumDecl *ED) { |
2240 | if (DebugKind <= codegenoptions::DebugLineTablesOnly) |
2241 | return; |
2242 | QualType Ty = CGM.getContext().getEnumType(ED); |
2243 | void *TyPtr = Ty.getAsOpaquePtr(); |
2244 | auto I = TypeCache.find(TyPtr); |
2245 | if (I == TypeCache.end() || !cast<llvm::DIType>(I->second)->isForwardDecl()) |
2246 | return; |
2247 | llvm::DIType *Res = CreateTypeDefinition(Ty->castAs<EnumType>()); |
2248 | assert(!Res->isForwardDecl()); |
2249 | TypeCache[TyPtr].reset(Res); |
2250 | } |
2251 | |
2252 | void CGDebugInfo::completeType(const RecordDecl *RD) { |
2253 | if (DebugKind > codegenoptions::LimitedDebugInfo || |
2254 | !CGM.getLangOpts().CPlusPlus) |
2255 | completeRequiredType(RD); |
2256 | } |
2257 | |
2258 | |
2259 | static bool isClassOrMethodDLLImport(const CXXRecordDecl *RD) { |
2260 | if (RD->hasAttr<DLLImportAttr>()) |
2261 | return true; |
2262 | for (const CXXMethodDecl *MD : RD->methods()) |
2263 | if (MD->hasAttr<DLLImportAttr>()) |
2264 | return true; |
2265 | return false; |
2266 | } |
2267 | |
2268 | |
2269 | static bool isDefinedInClangModule(const RecordDecl *RD) { |
2270 | |
2271 | if (!RD || !RD->isFromASTFile()) |
2272 | return false; |
2273 | |
2274 | if (!RD->isExternallyVisible() && RD->getName().empty()) |
2275 | return false; |
2276 | if (auto *CXXDecl = dyn_cast<CXXRecordDecl>(RD)) { |
2277 | if (!CXXDecl->isCompleteDefinition()) |
2278 | return false; |
2279 | |
2280 | auto TemplateKind = CXXDecl->getTemplateSpecializationKind(); |
2281 | if (TemplateKind != TSK_Undeclared) { |
2282 | |
2283 | |
2284 | |
2285 | bool Explicit = false; |
2286 | if (auto *TD = dyn_cast<ClassTemplateSpecializationDecl>(CXXDecl)) |
2287 | Explicit = TD->isExplicitInstantiationOrSpecialization(); |
2288 | if (!Explicit && CXXDecl->getEnclosingNamespaceContext()) |
2289 | return false; |
2290 | |
2291 | if (CXXDecl->field_begin() == CXXDecl->field_end()) |
2292 | return TemplateKind == TSK_ExplicitInstantiationDeclaration; |
2293 | if (!CXXDecl->field_begin()->isFromASTFile()) |
2294 | return false; |
2295 | } |
2296 | } |
2297 | return true; |
2298 | } |
2299 | |
2300 | void CGDebugInfo::completeClassData(const RecordDecl *RD) { |
2301 | if (auto *CXXRD = dyn_cast<CXXRecordDecl>(RD)) |
2302 | if (CXXRD->isDynamicClass() && |
2303 | CGM.getVTableLinkage(CXXRD) == |
2304 | llvm::GlobalValue::AvailableExternallyLinkage && |
2305 | !isClassOrMethodDLLImport(CXXRD)) |
2306 | return; |
2307 | |
2308 | if (DebugTypeExtRefs && isDefinedInClangModule(RD->getDefinition())) |
2309 | return; |
2310 | |
2311 | completeClass(RD); |
2312 | } |
2313 | |
2314 | void CGDebugInfo::completeClass(const RecordDecl *RD) { |
2315 | if (DebugKind <= codegenoptions::DebugLineTablesOnly) |
2316 | return; |
2317 | QualType Ty = CGM.getContext().getRecordType(RD); |
2318 | void *TyPtr = Ty.getAsOpaquePtr(); |
2319 | auto I = TypeCache.find(TyPtr); |
2320 | if (I != TypeCache.end() && !cast<llvm::DIType>(I->second)->isForwardDecl()) |
2321 | return; |
2322 | llvm::DIType *Res = CreateTypeDefinition(Ty->castAs<RecordType>()); |
2323 | assert(!Res->isForwardDecl()); |
2324 | TypeCache[TyPtr].reset(Res); |
2325 | } |
2326 | |
2327 | static bool hasExplicitMemberDefinition(CXXRecordDecl::method_iterator I, |
2328 | CXXRecordDecl::method_iterator End) { |
2329 | for (CXXMethodDecl *MD : llvm::make_range(I, End)) |
2330 | if (FunctionDecl *Tmpl = MD->getInstantiatedFromMemberFunction()) |
2331 | if (!Tmpl->isImplicit() && Tmpl->isThisDeclarationADefinition() && |
2332 | !MD->getMemberSpecializationInfo()->isExplicitSpecialization()) |
2333 | return true; |
2334 | return false; |
2335 | } |
2336 | |
2337 | static bool canUseCtorHoming(const CXXRecordDecl *RD) { |
2338 | |
2339 | |
2340 | |
2341 | |
2342 | |
2343 | |
2344 | |
2345 | |
2346 | if (isClassOrMethodDLLImport(RD)) |
2347 | return false; |
2348 | |
2349 | return !RD->isLambda() && !RD->isAggregate() && |
2350 | !RD->hasTrivialDefaultConstructor() && |
2351 | !RD->hasConstexprNonCopyMoveConstructor(); |
2352 | } |
2353 | |
2354 | static bool shouldOmitDefinition(codegenoptions::DebugInfoKind DebugKind, |
2355 | bool DebugTypeExtRefs, const RecordDecl *RD, |
2356 | const LangOptions &LangOpts) { |
2357 | if (DebugTypeExtRefs && isDefinedInClangModule(RD->getDefinition())) |
2358 | return true; |
2359 | |
2360 | if (auto *ES = RD->getASTContext().getExternalSource()) |
2361 | if (ES->hasExternalDefinitions(RD) == ExternalASTSource::EK_Always) |
2362 | return true; |
2363 | |
2364 | |
2365 | |
2366 | |
2367 | if (DebugKind == codegenoptions::DebugLineTablesOnly) |
2368 | return true; |
2369 | |
2370 | if (DebugKind > codegenoptions::LimitedDebugInfo || |
2371 | RD->hasAttr<StandaloneDebugAttr>()) |
2372 | return false; |
2373 | |
2374 | if (!LangOpts.CPlusPlus) |
2375 | return false; |
2376 | |
2377 | if (!RD->isCompleteDefinitionRequired()) |
2378 | return true; |
2379 | |
2380 | const auto *CXXDecl = dyn_cast<CXXRecordDecl>(RD); |
2381 | |
2382 | if (!CXXDecl) |
2383 | return false; |
2384 | |
2385 | |
2386 | |
2387 | |
2388 | |
2389 | |
2390 | |
2391 | if (CXXDecl->hasDefinition() && CXXDecl->isDynamicClass() && |
2392 | !isClassOrMethodDLLImport(CXXDecl)) |
2393 | return true; |
2394 | |
2395 | TemplateSpecializationKind Spec = TSK_Undeclared; |
2396 | if (const auto *SD = dyn_cast<ClassTemplateSpecializationDecl>(RD)) |
2397 | Spec = SD->getSpecializationKind(); |
2398 | |
2399 | if (Spec == TSK_ExplicitInstantiationDeclaration && |
2400 | hasExplicitMemberDefinition(CXXDecl->method_begin(), |
2401 | CXXDecl->method_end())) |
2402 | return true; |
2403 | |
2404 | |
2405 | |
2406 | if ((DebugKind == codegenoptions::DebugInfoConstructor) && |
2407 | canUseCtorHoming(CXXDecl)) |
2408 | return true; |
2409 | |
2410 | return false; |
2411 | } |
2412 | |
2413 | void CGDebugInfo::completeRequiredType(const RecordDecl *RD) { |
2414 | if (shouldOmitDefinition(DebugKind, DebugTypeExtRefs, RD, CGM.getLangOpts())) |
2415 | return; |
2416 | |
2417 | QualType Ty = CGM.getContext().getRecordType(RD); |
2418 | llvm::DIType *T = getTypeOrNull(Ty); |
2419 | if (T && T->isForwardDecl()) |
2420 | completeClassData(RD); |
2421 | } |
2422 | |
2423 | llvm::DIType *CGDebugInfo::CreateType(const RecordType *Ty) { |
2424 | RecordDecl *RD = Ty->getDecl(); |
2425 | llvm::DIType *T = cast_or_null<llvm::DIType>(getTypeOrNull(QualType(Ty, 0))); |
2426 | if (T || shouldOmitDefinition(DebugKind, DebugTypeExtRefs, RD, |
2427 | CGM.getLangOpts())) { |
2428 | if (!T) |
2429 | T = getOrCreateRecordFwdDecl(Ty, getDeclContextDescriptor(RD)); |
2430 | return T; |
2431 | } |
2432 | |
2433 | return CreateTypeDefinition(Ty); |
2434 | } |
2435 | |
2436 | llvm::DIType *CGDebugInfo::CreateTypeDefinition(const RecordType *Ty) { |
2437 | RecordDecl *RD = Ty->getDecl(); |
2438 | |
2439 | |
2440 | llvm::DIFile *DefUnit = getOrCreateFile(RD->getLocation()); |
2441 | |
2442 | |
2443 | |
2444 | |
2445 | |
2446 | |
2447 | |
2448 | llvm::DICompositeType *FwdDecl = getOrCreateLimitedType(Ty); |
2449 | |
2450 | const RecordDecl *D = RD->getDefinition(); |
2451 | if (!D || !D->isCompleteDefinition()) |
2452 | return FwdDecl; |
2453 | |
2454 | if (const auto *CXXDecl = dyn_cast<CXXRecordDecl>(RD)) |
2455 | CollectContainingType(CXXDecl, FwdDecl); |
2456 | |
2457 | |
2458 | LexicalBlockStack.emplace_back(&*FwdDecl); |
2459 | RegionMap[Ty->getDecl()].reset(FwdDecl); |
2460 | |
2461 | |
2462 | SmallVector<llvm::Metadata *, 16> EltTys; |
2463 | |
2464 | |
2465 | |
2466 | |
2467 | |
2468 | |
2469 | const auto *CXXDecl = dyn_cast<CXXRecordDecl>(RD); |
2470 | if (CXXDecl) { |
2471 | CollectCXXBases(CXXDecl, DefUnit, EltTys, FwdDecl); |
2472 | CollectVTableInfo(CXXDecl, DefUnit, EltTys); |
2473 | } |
2474 | |
2475 | |
2476 | CollectRecordFields(RD, DefUnit, EltTys, FwdDecl); |
2477 | if (CXXDecl) |
2478 | CollectCXXMemberFunctions(CXXDecl, DefUnit, EltTys, FwdDecl); |
2479 | |
2480 | LexicalBlockStack.pop_back(); |
2481 | RegionMap.erase(Ty->getDecl()); |
2482 | |
2483 | llvm::DINodeArray Elements = DBuilder.getOrCreateArray(EltTys); |
2484 | DBuilder.replaceArrays(FwdDecl, Elements); |
2485 | |
2486 | if (FwdDecl->isTemporary()) |
2487 | FwdDecl = |
2488 | llvm::MDNode::replaceWithPermanent(llvm::TempDICompositeType(FwdDecl)); |
2489 | |
2490 | RegionMap[Ty->getDecl()].reset(FwdDecl); |
2491 | return FwdDecl; |
2492 | } |
2493 | |
2494 | llvm::DIType *CGDebugInfo::CreateType(const ObjCObjectType *Ty, |
2495 | llvm::DIFile *Unit) { |
2496 | |
2497 | return getOrCreateType(Ty->getBaseType(), Unit); |
2498 | } |
2499 | |
2500 | llvm::DIType *CGDebugInfo::CreateType(const ObjCTypeParamType *Ty, |
2501 | llvm::DIFile *Unit) { |
2502 | |
2503 | SourceLocation Loc = Ty->getDecl()->getLocation(); |
2504 | |
2505 | |
2506 | return DBuilder.createTypedef( |
2507 | getOrCreateType(Ty->getDecl()->getUnderlyingType(), Unit), |
2508 | Ty->getDecl()->getName(), getOrCreateFile(Loc), getLineNumber(Loc), |
2509 | getDeclContextDescriptor(Ty->getDecl())); |
2510 | } |
2511 | |
2512 | |
2513 | static bool hasDefaultGetterName(const ObjCPropertyDecl *PD, |
2514 | const ObjCMethodDecl *Getter) { |
2515 | assert(PD); |
2516 | if (!Getter) |
2517 | return true; |
2518 | |
2519 | assert(Getter->getDeclName().isObjCZeroArgSelector()); |
2520 | return PD->getName() == |
2521 | Getter->getDeclName().getObjCSelector().getNameForSlot(0); |
2522 | } |
2523 | |
2524 | |
2525 | static bool hasDefaultSetterName(const ObjCPropertyDecl *PD, |
2526 | const ObjCMethodDecl *Setter) { |
2527 | assert(PD); |
2528 | if (!Setter) |
2529 | return true; |
2530 | |
2531 | assert(Setter->getDeclName().isObjCOneArgSelector()); |
2532 | return SelectorTable::constructSetterName(PD->getName()) == |
2533 | Setter->getDeclName().getObjCSelector().getNameForSlot(0); |
2534 | } |
2535 | |
2536 | llvm::DIType *CGDebugInfo::CreateType(const ObjCInterfaceType *Ty, |
2537 | llvm::DIFile *Unit) { |
2538 | ObjCInterfaceDecl *ID = Ty->getDecl(); |
2539 | if (!ID) |
2540 | return nullptr; |
2541 | |
2542 | |
2543 | |
2544 | |
2545 | if (DebugTypeExtRefs && ID->isFromASTFile() && ID->getDefinition() && |
2546 | !ID->getImplementation()) |
2547 | return DBuilder.createForwardDecl(llvm::dwarf::DW_TAG_structure_type, |
2548 | ID->getName(), |
2549 | getDeclContextDescriptor(ID), Unit, 0); |
2550 | |
2551 | |
2552 | llvm::DIFile *DefUnit = getOrCreateFile(ID->getLocation()); |
2553 | unsigned Line = getLineNumber(ID->getLocation()); |
2554 | auto RuntimeLang = |
2555 | static_cast<llvm::dwarf::SourceLanguage>(TheCU->getSourceLanguage()); |
2556 | |
2557 | |
2558 | |
2559 | ObjCInterfaceDecl *Def = ID->getDefinition(); |
2560 | if (!Def || !Def->getImplementation()) { |
2561 | llvm::DIScope *Mod = getParentModuleOrNull(ID); |
2562 | llvm::DIType *FwdDecl = DBuilder.createReplaceableCompositeType( |
2563 | llvm::dwarf::DW_TAG_structure_type, ID->getName(), Mod ? Mod : TheCU, |
2564 | DefUnit, Line, RuntimeLang); |
2565 | ObjCInterfaceCache.push_back(ObjCInterfaceCacheEntry(Ty, FwdDecl, Unit)); |
2566 | return FwdDecl; |
2567 | } |
2568 | |
2569 | return CreateTypeDefinition(Ty, Unit); |
2570 | } |
2571 | |
2572 | llvm::DIModule *CGDebugInfo::getOrCreateModuleRef(ASTSourceDescriptor Mod, |
2573 | bool CreateSkeletonCU) { |
2574 | |
2575 | |
2576 | |
2577 | const Module *M = Mod.getModuleOrNull(); |
2578 | auto ModRef = ModuleCache.find(M); |
2579 | if (ModRef != ModuleCache.end()) |
2580 | return cast<llvm::DIModule>(ModRef->second); |
2581 | |
2582 | |
2583 | SmallString<128> ConfigMacros; |
2584 | { |
2585 | llvm::raw_svector_ostream OS(ConfigMacros); |
2586 | const auto &PPOpts = CGM.getPreprocessorOpts(); |
2587 | unsigned I = 0; |
2588 | |
2589 | for (auto &M : PPOpts.Macros) { |
2590 | if (++I > 1) |
2591 | OS << " "; |
2592 | const std::string &Macro = M.first; |
2593 | bool Undef = M.second; |
2594 | OS << "\"-" << (Undef ? 'U' : 'D'); |
2595 | for (char c : Macro) |
2596 | switch (c) { |
2597 | case '\\': |
2598 | OS << "\\\\"; |
2599 | break; |
2600 | case '"': |
2601 | OS << "\\\""; |
2602 | break; |
2603 | default: |
2604 | OS << c; |
2605 | } |
2606 | OS << '\"'; |
2607 | } |
2608 | } |
2609 | |
2610 | bool IsRootModule = M ? !M->Parent : true; |
2611 | |
2612 | |
2613 | |
2614 | if (CreateSkeletonCU && IsRootModule && Mod.getASTFile().empty() && M) |
2615 | assert(StringRef(M->Name).startswith(CGM.getLangOpts().ModuleName) && |
2616 | "clang module without ASTFile must be specified by -fmodule-name"); |
2617 | |
2618 | |
2619 | auto RemapPath = [this](StringRef Path) -> std::string { |
2620 | std::string Remapped = remapDIPath(Path); |
2621 | StringRef Relative(Remapped); |
2622 | StringRef CompDir = TheCU->getDirectory(); |
2623 | if (Relative.consume_front(CompDir)) |
2624 | Relative.consume_front(llvm::sys::path::get_separator()); |
2625 | |
2626 | return Relative.str(); |
2627 | }; |
2628 | |
2629 | if (CreateSkeletonCU && IsRootModule && !Mod.getASTFile().empty()) { |
2630 | |
2631 | |
2632 | |
2633 | |
2634 | uint64_t Signature = 0; |
2635 | if (const auto &ModSig = Mod.getSignature()) |
2636 | Signature = ModSig.truncatedValue(); |
2637 | else |
2638 | Signature = ~1ULL; |
2639 | |
2640 | llvm::DIBuilder DIB(CGM.getModule()); |
2641 | SmallString<0> PCM; |
2642 | if (!llvm::sys::path::is_absolute(Mod.getASTFile())) |
2643 | PCM = Mod.getPath(); |
2644 | llvm::sys::path::append(PCM, Mod.getASTFile()); |
2645 | DIB.createCompileUnit( |
2646 | TheCU->getSourceLanguage(), |
2647 | |
2648 | DIB.createFile(Mod.getModuleName(), TheCU->getDirectory()), |
2649 | TheCU->getProducer(), false, StringRef(), 0, RemapPath(PCM), |
2650 | llvm::DICompileUnit::FullDebug, Signature); |
2651 | DIB.finalize(); |
2652 | } |
2653 | |
2654 | llvm::DIModule *Parent = |
2655 | IsRootModule ? nullptr |
2656 | : getOrCreateModuleRef(ASTSourceDescriptor(*M->Parent), |
2657 | CreateSkeletonCU); |
2658 | std::string IncludePath = Mod.getPath().str(); |
2659 | llvm::DIModule *DIMod = |
2660 | DBuilder.createModule(Parent, Mod.getModuleName(), ConfigMacros, |
2661 | RemapPath(IncludePath)); |
2662 | ModuleCache[M].reset(DIMod); |
2663 | return DIMod; |
2664 | } |
2665 | |
2666 | llvm::DIType *CGDebugInfo::CreateTypeDefinition(const ObjCInterfaceType *Ty, |
2667 | llvm::DIFile *Unit) { |
2668 | ObjCInterfaceDecl *ID = Ty->getDecl(); |
2669 | llvm::DIFile *DefUnit = getOrCreateFile(ID->getLocation()); |
2670 | unsigned Line = getLineNumber(ID->getLocation()); |
2671 | unsigned RuntimeLang = TheCU->getSourceLanguage(); |
2672 | |
2673 | |
2674 | uint64_t Size = CGM.getContext().getTypeSize(Ty); |
2675 | auto Align = getTypeAlignIfRequired(Ty, CGM.getContext()); |
2676 | |
2677 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
2678 | if (ID->getImplementation()) |
2679 | Flags |= llvm::DINode::FlagObjcClassComplete; |
2680 | |
2681 | llvm::DIScope *Mod = getParentModuleOrNull(ID); |
2682 | llvm::DICompositeType *RealDecl = DBuilder.createStructType( |
2683 | Mod ? Mod : Unit, ID->getName(), DefUnit, Line, Size, Align, Flags, |
2684 | nullptr, llvm::DINodeArray(), RuntimeLang); |
2685 | |
2686 | QualType QTy(Ty, 0); |
2687 | TypeCache[QTy.getAsOpaquePtr()].reset(RealDecl); |
2688 | |
2689 | |
2690 | LexicalBlockStack.emplace_back(RealDecl); |
2691 | RegionMap[Ty->getDecl()].reset(RealDecl); |
2692 | |
2693 | |
2694 | SmallVector<llvm::Metadata *, 16> EltTys; |
2695 | |
2696 | ObjCInterfaceDecl *SClass = ID->getSuperClass(); |
2697 | if (SClass) { |
2698 | llvm::DIType *SClassTy = |
2699 | getOrCreateType(CGM.getContext().getObjCInterfaceType(SClass), Unit); |
2700 | if (!SClassTy) |
2701 | return nullptr; |
2702 | |
2703 | llvm::DIType *InhTag = DBuilder.createInheritance(RealDecl, SClassTy, 0, 0, |
2704 | llvm::DINode::FlagZero); |
2705 | EltTys.push_back(InhTag); |
2706 | } |
2707 | |
2708 | |
2709 | auto AddProperty = [&](const ObjCPropertyDecl *PD) { |
2710 | SourceLocation Loc = PD->getLocation(); |
2711 | llvm::DIFile *PUnit = getOrCreateFile(Loc); |
2712 | unsigned PLine = getLineNumber(Loc); |
2713 | ObjCMethodDecl *Getter = PD->getGetterMethodDecl(); |
2714 | ObjCMethodDecl *Setter = PD->getSetterMethodDecl(); |
2715 | llvm::MDNode *PropertyNode = DBuilder.createObjCProperty( |
2716 | PD->getName(), PUnit, PLine, |
2717 | hasDefaultGetterName(PD, Getter) ? "" |
2718 | : getSelectorName(PD->getGetterName()), |
2719 | hasDefaultSetterName(PD, Setter) ? "" |
2720 | : getSelectorName(PD->getSetterName()), |
2721 | PD->getPropertyAttributes(), getOrCreateType(PD->getType(), PUnit)); |
2722 | EltTys.push_back(PropertyNode); |
2723 | }; |
2724 | { |
2725 | |
2726 | |
2727 | typedef std::pair<char, const IdentifierInfo *> IsClassAndIdent; |
2728 | |
2729 | |
2730 | |
2731 | llvm::DenseSet<IsClassAndIdent> PropertySet; |
2732 | |
2733 | auto GetIsClassAndIdent = [](const ObjCPropertyDecl *PD) { |
2734 | return std::make_pair(PD->isClassProperty(), PD->getIdentifier()); |
2735 | }; |
2736 | for (const ObjCCategoryDecl *ClassExt : ID->known_extensions()) |
2737 | for (auto *PD : ClassExt->properties()) { |
2738 | PropertySet.insert(GetIsClassAndIdent(PD)); |
2739 | AddProperty(PD); |
2740 | } |
2741 | for (const auto *PD : ID->properties()) { |
2742 | |
2743 | |
2744 | if (!PropertySet.insert(GetIsClassAndIdent(PD)).second) |
2745 | continue; |
2746 | AddProperty(PD); |
2747 | } |
2748 | } |
2749 | |
2750 | const ASTRecordLayout &RL = CGM.getContext().getASTObjCInterfaceLayout(ID); |
2751 | unsigned FieldNo = 0; |
2752 | for (ObjCIvarDecl *Field = ID->all_declared_ivar_begin(); Field; |
2753 | Field = Field->getNextIvar(), ++FieldNo) { |
2754 | llvm::DIType *FieldTy = getOrCreateType(Field->getType(), Unit); |
2755 | if (!FieldTy) |
2756 | return nullptr; |
2757 | |
2758 | StringRef FieldName = Field->getName(); |
2759 | |
2760 | |
2761 | if (FieldName.empty()) |
2762 | continue; |
2763 | |
2764 | |
2765 | llvm::DIFile *FieldDefUnit = getOrCreateFile(Field->getLocation()); |
2766 | unsigned FieldLine = getLineNumber(Field->getLocation()); |
2767 | QualType FType = Field->getType(); |
2768 | uint64_t FieldSize = 0; |
2769 | uint32_t FieldAlign = 0; |
2770 | |
2771 | if (!FType->isIncompleteArrayType()) { |
2772 | |
2773 | |
2774 | FieldSize = Field->isBitField() |
2775 | ? Field->getBitWidthValue(CGM.getContext()) |
2776 | : CGM.getContext().getTypeSize(FType); |
2777 | FieldAlign = getTypeAlignIfRequired(FType, CGM.getContext()); |
2778 | } |
2779 | |
2780 | uint64_t FieldOffset; |
2781 | if (CGM.getLangOpts().ObjCRuntime.isNonFragile()) { |
2782 | |
2783 | |
2784 | |
2785 | if (Field->isBitField()) { |
2786 | FieldOffset = |
2787 | CGM.getObjCRuntime().ComputeBitfieldBitOffset(CGM, ID, Field); |
2788 | FieldOffset %= CGM.getContext().getCharWidth(); |
2789 | } else { |
2790 | FieldOffset = 0; |
2791 | } |
2792 | } else { |
2793 | FieldOffset = RL.getFieldOffset(FieldNo); |
2794 | } |
2795 | |
2796 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
2797 | if (Field->getAccessControl() == ObjCIvarDecl::Protected) |
2798 | Flags = llvm::DINode::FlagProtected; |
2799 | else if (Field->getAccessControl() == ObjCIvarDecl::Private) |
2800 | Flags = llvm::DINode::FlagPrivate; |
2801 | else if (Field->getAccessControl() == ObjCIvarDecl::Public) |
2802 | Flags = llvm::DINode::FlagPublic; |
2803 | |
2804 | llvm::MDNode *PropertyNode = nullptr; |
2805 | if (ObjCImplementationDecl *ImpD = ID->getImplementation()) { |
2806 | if (ObjCPropertyImplDecl *PImpD = |
2807 | ImpD->FindPropertyImplIvarDecl(Field->getIdentifier())) { |
2808 | if (ObjCPropertyDecl *PD = PImpD->getPropertyDecl()) { |
2809 | SourceLocation Loc = PD->getLocation(); |
2810 | llvm::DIFile *PUnit = getOrCreateFile(Loc); |
2811 | unsigned PLine = getLineNumber(Loc); |
2812 | ObjCMethodDecl *Getter = PImpD->getGetterMethodDecl(); |
2813 | ObjCMethodDecl *Setter = PImpD->getSetterMethodDecl(); |
2814 | PropertyNode = DBuilder.createObjCProperty( |
2815 | PD->getName(), PUnit, PLine, |
2816 | hasDefaultGetterName(PD, Getter) |
2817 | ? "" |
2818 | : getSelectorName(PD->getGetterName()), |
2819 | hasDefaultSetterName(PD, Setter) |
2820 | ? "" |
2821 | : getSelectorName(PD->getSetterName()), |
2822 | PD->getPropertyAttributes(), |
2823 | getOrCreateType(PD->getType(), PUnit)); |
2824 | } |
2825 | } |
2826 | } |
2827 | FieldTy = DBuilder.createObjCIVar(FieldName, FieldDefUnit, FieldLine, |
2828 | FieldSize, FieldAlign, FieldOffset, Flags, |
2829 | FieldTy, PropertyNode); |
2830 | EltTys.push_back(FieldTy); |
2831 | } |
2832 | |
2833 | llvm::DINodeArray Elements = DBuilder.getOrCreateArray(EltTys); |
2834 | DBuilder.replaceArrays(RealDecl, Elements); |
2835 | |
2836 | LexicalBlockStack.pop_back(); |
2837 | return RealDecl; |
2838 | } |
2839 | |
2840 | llvm::DIType *CGDebugInfo::CreateType(const VectorType *Ty, |
2841 | llvm::DIFile *Unit) { |
2842 | llvm::DIType *ElementTy = getOrCreateType(Ty->getElementType(), Unit); |
2843 | int64_t Count = Ty->getNumElements(); |
2844 | |
2845 | llvm::Metadata *Subscript; |
2846 | QualType QTy(Ty, 0); |
2847 | auto SizeExpr = SizeExprCache.find(QTy); |
2848 | if (SizeExpr != SizeExprCache.end()) |
2849 | Subscript = DBuilder.getOrCreateSubrange( |
2850 | SizeExpr->getSecond() , nullptr , |
2851 | nullptr , nullptr ); |
2852 | else { |
2853 | auto *CountNode = |
2854 | llvm::ConstantAsMetadata::get(llvm::ConstantInt::getSigned( |
2855 | llvm::Type::getInt64Ty(CGM.getLLVMContext()), Count ? Count : -1)); |
2856 | Subscript = DBuilder.getOrCreateSubrange( |
2857 | CountNode , nullptr , nullptr , |
2858 | nullptr ); |
2859 | } |
2860 | llvm::DINodeArray SubscriptArray = DBuilder.getOrCreateArray(Subscript); |
2861 | |
2862 | uint64_t Size = CGM.getContext().getTypeSize(Ty); |
2863 | auto Align = getTypeAlignIfRequired(Ty, CGM.getContext()); |
2864 | |
2865 | return DBuilder.createVectorType(Size, Align, ElementTy, SubscriptArray); |
2866 | } |
2867 | |
2868 | llvm::DIType *CGDebugInfo::CreateType(const ConstantMatrixType *Ty, |
2869 | llvm::DIFile *Unit) { |
2870 | |
2871 | |
2872 | |
2873 | llvm::DIType *ElementTy = getOrCreateType(Ty->getElementType(), Unit); |
2874 | uint64_t Size = CGM.getContext().getTypeSize(Ty); |
2875 | uint32_t Align = getTypeAlignIfRequired(Ty, CGM.getContext()); |
2876 | |
2877 | |
2878 | llvm::SmallVector<llvm::Metadata *, 2> Subscripts; |
2879 | auto *ColumnCountNode = |
2880 | llvm::ConstantAsMetadata::get(llvm::ConstantInt::getSigned( |
2881 | llvm::Type::getInt64Ty(CGM.getLLVMContext()), Ty->getNumColumns())); |
2882 | auto *RowCountNode = |
2883 | llvm::ConstantAsMetadata::get(llvm::ConstantInt::getSigned( |
2884 | llvm::Type::getInt64Ty(CGM.getLLVMContext()), Ty->getNumRows())); |
2885 | Subscripts.push_back(DBuilder.getOrCreateSubrange( |
2886 | ColumnCountNode , nullptr , nullptr , |
2887 | nullptr )); |
2888 | Subscripts.push_back(DBuilder.getOrCreateSubrange( |
2889 | RowCountNode , nullptr , nullptr , |
2890 | nullptr )); |
2891 | llvm::DINodeArray SubscriptArray = DBuilder.getOrCreateArray(Subscripts); |
2892 | return DBuilder.createArrayType(Size, Align, ElementTy, SubscriptArray); |
2893 | } |
2894 | |
2895 | llvm::DIType *CGDebugInfo::CreateType(const ArrayType *Ty, llvm::DIFile *Unit) { |
2896 | uint64_t Size; |
2897 | uint32_t Align; |
2898 | |
2899 | |
2900 | if (const auto *VAT = dyn_cast<VariableArrayType>(Ty)) { |
2901 | Size = 0; |
2902 | Align = getTypeAlignIfRequired(CGM.getContext().getBaseElementType(VAT), |
2903 | CGM.getContext()); |
2904 | } else if (Ty->isIncompleteArrayType()) { |
2905 | Size = 0; |
2906 | if (Ty->getElementType()->isIncompleteType()) |
2907 | Align = 0; |
2908 | else |
2909 | Align = getTypeAlignIfRequired(Ty->getElementType(), CGM.getContext()); |
2910 | } else if (Ty->isIncompleteType()) { |
2911 | Size = 0; |
2912 | Align = 0; |
2913 | } else { |
2914 | |
2915 | Size = CGM.getContext().getTypeSize(Ty); |
2916 | Align = getTypeAlignIfRequired(Ty, CGM.getContext()); |
2917 | } |
2918 | |
2919 | |
2920 | |
2921 | |
2922 | SmallVector<llvm::Metadata *, 8> Subscripts; |
2923 | QualType EltTy(Ty, 0); |
2924 | while ((Ty = dyn_cast<ArrayType>(EltTy))) { |
2925 | |
2926 | |
2927 | |
2928 | |
2929 | |
2930 | |
2931 | |
2932 | int64_t Count = -1; |
2933 | if (const auto *CAT = dyn_cast<ConstantArrayType>(Ty)) |
2934 | Count = CAT->getSize().getZExtValue(); |
2935 | else if (const auto *VAT = dyn_cast<VariableArrayType>(Ty)) { |
2936 | if (Expr *Size = VAT->getSizeExpr()) { |
2937 | Expr::EvalResult Result; |
2938 | if (Size->EvaluateAsInt(Result, CGM.getContext())) |
2939 | Count = Result.Val.getInt().getExtValue(); |
2940 | } |
2941 | } |
2942 | |
2943 | auto SizeNode = SizeExprCache.find(EltTy); |
2944 | if (SizeNode != SizeExprCache.end()) |
2945 | Subscripts.push_back(DBuilder.getOrCreateSubrange( |
2946 | SizeNode->getSecond() , nullptr , |
2947 | nullptr , nullptr )); |
2948 | else { |
2949 | auto *CountNode = |
2950 | llvm::ConstantAsMetadata::get(llvm::ConstantInt::getSigned( |
2951 | llvm::Type::getInt64Ty(CGM.getLLVMContext()), Count)); |
2952 | Subscripts.push_back(DBuilder.getOrCreateSubrange( |
2953 | CountNode , nullptr , nullptr , |
2954 | nullptr )); |
2955 | } |
2956 | EltTy = Ty->getElementType(); |
2957 | } |
2958 | |
2959 | llvm::DINodeArray SubscriptArray = DBuilder.getOrCreateArray(Subscripts); |
2960 | |
2961 | return DBuilder.createArrayType(Size, Align, getOrCreateType(EltTy, Unit), |
2962 | SubscriptArray); |
2963 | } |
2964 | |
2965 | llvm::DIType *CGDebugInfo::CreateType(const LValueReferenceType *Ty, |
2966 | llvm::DIFile *Unit) { |
2967 | return CreatePointerLikeType(llvm::dwarf::DW_TAG_reference_type, Ty, |
2968 | Ty->getPointeeType(), Unit); |
2969 | } |
2970 | |
2971 | llvm::DIType *CGDebugInfo::CreateType(const RValueReferenceType *Ty, |
2972 | llvm::DIFile *Unit) { |
2973 | llvm::dwarf::Tag Tag = llvm::dwarf::DW_TAG_rvalue_reference_type; |
2974 | |
2975 | if (CGM.getCodeGenOpts().DebugStrictDwarf && |
2976 | CGM.getCodeGenOpts().DwarfVersion < 4) |
2977 | Tag = llvm::dwarf::DW_TAG_reference_type; |
2978 | |
2979 | return CreatePointerLikeType(Tag, Ty, Ty->getPointeeType(), Unit); |
2980 | } |
2981 | |
2982 | llvm::DIType *CGDebugInfo::CreateType(const MemberPointerType *Ty, |
2983 | llvm::DIFile *U) { |
2984 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
2985 | uint64_t Size = 0; |
2986 | |
2987 | if (!Ty->isIncompleteType()) { |
2988 | Size = CGM.getContext().getTypeSize(Ty); |
2989 | |
2990 | |
2991 | if (CGM.getTarget().getCXXABI().isMicrosoft()) { |
2992 | switch (Ty->getMostRecentCXXRecordDecl()->getMSInheritanceModel()) { |
2993 | case MSInheritanceModel::Single: |
2994 | Flags |= llvm::DINode::FlagSingleInheritance; |
2995 | break; |
2996 | case MSInheritanceModel::Multiple: |
2997 | Flags |= llvm::DINode::FlagMultipleInheritance; |
2998 | break; |
2999 | case MSInheritanceModel::Virtual: |
3000 | Flags |= llvm::DINode::FlagVirtualInheritance; |
3001 | break; |
3002 | case MSInheritanceModel::Unspecified: |
3003 | break; |
3004 | } |
3005 | } |
3006 | } |
3007 | |
3008 | llvm::DIType *ClassType = getOrCreateType(QualType(Ty->getClass(), 0), U); |
3009 | if (Ty->isMemberDataPointerType()) |
3010 | return DBuilder.createMemberPointerType( |
3011 | getOrCreateType(Ty->getPointeeType(), U), ClassType, Size, 0, |
3012 | Flags); |
3013 | |
3014 | const FunctionProtoType *FPT = |
3015 | Ty->getPointeeType()->getAs<FunctionProtoType>(); |
3016 | return DBuilder.createMemberPointerType( |
3017 | getOrCreateInstanceMethodType( |
3018 | CXXMethodDecl::getThisType(FPT, Ty->getMostRecentCXXRecordDecl()), |
3019 | FPT, U, false), |
3020 | ClassType, Size, 0, Flags); |
3021 | } |
3022 | |
3023 | llvm::DIType *CGDebugInfo::CreateType(const AtomicType *Ty, llvm::DIFile *U) { |
3024 | auto *FromTy = getOrCreateType(Ty->getValueType(), U); |
3025 | return DBuilder.createQualifiedType(llvm::dwarf::DW_TAG_atomic_type, FromTy); |
3026 | } |
3027 | |
3028 | llvm::DIType *CGDebugInfo::CreateType(const PipeType *Ty, llvm::DIFile *U) { |
3029 | return getOrCreateType(Ty->getElementType(), U); |
3030 | } |
3031 | |
3032 | llvm::DIType *CGDebugInfo::CreateEnumType(const EnumType *Ty) { |
3033 | const EnumDecl *ED = Ty->getDecl(); |
3034 | |
3035 | uint64_t Size = 0; |
3036 | uint32_t Align = 0; |
3037 | if (!ED->getTypeForDecl()->isIncompleteType()) { |
3038 | Size = CGM.getContext().getTypeSize(ED->getTypeForDecl()); |
3039 | Align = getDeclAlignIfRequired(ED, CGM.getContext()); |
3040 | } |
3041 | |
3042 | SmallString<256> Identifier = getTypeIdentifier(Ty, CGM, TheCU); |
3043 | |
3044 | bool isImportedFromModule = |
3045 | DebugTypeExtRefs && ED->isFromASTFile() && ED->getDefinition(); |
3046 | |
3047 | |
3048 | |
3049 | if (isImportedFromModule || !ED->getDefinition()) { |
3050 | |
3051 | |
3052 | |
3053 | |
3054 | |
3055 | |
3056 | llvm::DIScope *EDContext = getDeclContextDescriptor(ED); |
3057 | llvm::DIFile *DefUnit = getOrCreateFile(ED->getLocation()); |
3058 | llvm::TempDIScope TmpContext(DBuilder.createReplaceableCompositeType( |
3059 | llvm::dwarf::DW_TAG_enumeration_type, "", TheCU, DefUnit, 0)); |
3060 | |
3061 | unsigned Line = getLineNumber(ED->getLocation()); |
3062 | StringRef EDName = ED->getName(); |
3063 | llvm::DIType *RetTy = DBuilder.createReplaceableCompositeType( |
3064 | llvm::dwarf::DW_TAG_enumeration_type, EDName, EDContext, DefUnit, Line, |
3065 | 0, Size, Align, llvm::DINode::FlagFwdDecl, Identifier); |
3066 | |
3067 | ReplaceMap.emplace_back( |
3068 | std::piecewise_construct, std::make_tuple(Ty), |
3069 | std::make_tuple(static_cast<llvm::Metadata *>(RetTy))); |
3070 | return RetTy; |
3071 | } |
3072 | |
3073 | return CreateTypeDefinition(Ty); |
3074 | } |
3075 | |
3076 | llvm::DIType *CGDebugInfo::CreateTypeDefinition(const EnumType *Ty) { |
3077 | const EnumDecl *ED = Ty->getDecl(); |
3078 | uint64_t Size = 0; |
3079 | uint32_t Align = 0; |
3080 | if (!ED->getTypeForDecl()->isIncompleteType()) { |
3081 | Size = CGM.getContext().getTypeSize(ED->getTypeForDecl()); |
3082 | Align = getDeclAlignIfRequired(ED, CGM.getContext()); |
3083 | } |
3084 | |
3085 | SmallString<256> Identifier = getTypeIdentifier(Ty, CGM, TheCU); |
3086 | |
3087 | SmallVector<llvm::Metadata *, 16> Enumerators; |
3088 | ED = ED->getDefinition(); |
3089 | for (const auto *Enum : ED->enumerators()) { |
3090 | Enumerators.push_back( |
3091 | DBuilder.createEnumerator(Enum->getName(), Enum->getInitVal())); |
3092 | } |
3093 | |
3094 | |
3095 | llvm::DINodeArray EltArray = DBuilder.getOrCreateArray(Enumerators); |
3096 | |
3097 | llvm::DIFile *DefUnit = getOrCreateFile(ED->getLocation()); |
3098 | unsigned Line = getLineNumber(ED->getLocation()); |
3099 | llvm::DIScope *EnumContext = getDeclContextDescriptor(ED); |
3100 | llvm::DIType *ClassTy = getOrCreateType(ED->getIntegerType(), DefUnit); |
3101 | return DBuilder.createEnumerationType(EnumContext, ED->getName(), DefUnit, |
3102 | Line, Size, Align, EltArray, ClassTy, |
3103 | Identifier, ED->isScoped()); |
3104 | } |
3105 | |
3106 | llvm::DIMacro *CGDebugInfo::CreateMacro(llvm::DIMacroFile *Parent, |
3107 | unsigned MType, SourceLocation LineLoc, |
3108 | StringRef Name, StringRef Value) { |
3109 | unsigned Line = LineLoc.isInvalid() ? 0 : getLineNumber(LineLoc); |
3110 | return DBuilder.createMacro(Parent, Line, MType, Name, Value); |
3111 | } |
3112 | |
3113 | llvm::DIMacroFile *CGDebugInfo::CreateTempMacroFile(llvm::DIMacroFile *Parent, |
3114 | SourceLocation LineLoc, |
3115 | SourceLocation FileLoc) { |
3116 | llvm::DIFile *FName = getOrCreateFile(FileLoc); |
3117 | unsigned Line = LineLoc.isInvalid() ? 0 : getLineNumber(LineLoc); |
3118 | return DBuilder.createTempMacroFile(Parent, Line, FName); |
3119 | } |
3120 | |
3121 | static QualType UnwrapTypeForDebugInfo(QualType T, const ASTContext &C) { |
3122 | Qualifiers Quals; |
3123 | do { |
3124 | Qualifiers InnerQuals = T.getLocalQualifiers(); |
3125 | |
3126 | |
3127 | Quals += Qualifiers::removeCommonQualifiers(Quals, InnerQuals); |
3128 | Quals += InnerQuals; |
3129 | QualType LastT = T; |
3130 | switch (T->getTypeClass()) { |
3131 | default: |
3132 | return C.getQualifiedType(T.getTypePtr(), Quals); |
3133 | case Type::TemplateSpecialization: { |
3134 | const auto *Spec = cast<TemplateSpecializationType>(T); |
3135 | if (Spec->isTypeAlias()) |
3136 | return C.getQualifiedType(T.getTypePtr(), Quals); |
3137 | T = Spec->desugar(); |
3138 | break; |
3139 | } |
3140 | case Type::TypeOfExpr: |
3141 | T = cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType(); |
3142 | break; |
3143 | case Type::TypeOf: |
3144 | T = cast<TypeOfType>(T)->getUnderlyingType(); |
3145 | break; |
3146 | case Type::Decltype: |
3147 | T = cast<DecltypeType>(T)->getUnderlyingType(); |
3148 | break; |
3149 | case Type::UnaryTransform: |
3150 | T = cast<UnaryTransformType>(T)->getUnderlyingType(); |
3151 | break; |
3152 | case Type::Attributed: |
3153 | T = cast<AttributedType>(T)->getEquivalentType(); |
3154 | break; |
3155 | case Type::Elaborated: |
3156 | T = cast<ElaboratedType>(T)->getNamedType(); |
3157 | break; |
3158 | case Type::Paren: |
3159 | T = cast<ParenType>(T)->getInnerType(); |
3160 | break; |
3161 | case Type::MacroQualified: |
3162 | T = cast<MacroQualifiedType>(T)->getUnderlyingType(); |
3163 | break; |
3164 | case Type::SubstTemplateTypeParm: |
3165 | T = cast<SubstTemplateTypeParmType>(T)->getReplacementType(); |
3166 | break; |
3167 | case Type::Auto: |
3168 | case Type::DeducedTemplateSpecialization: { |
3169 | QualType DT = cast<DeducedType>(T)->getDeducedType(); |
3170 | assert(!DT.isNull() && "Undeduced types shouldn't reach here."); |
3171 | T = DT; |
3172 | break; |
3173 | } |
3174 | case Type::Adjusted: |
3175 | case Type::Decayed: |
3176 | |
3177 | T = cast<AdjustedType>(T)->getAdjustedType(); |
3178 | break; |
3179 | } |
3180 | |
3181 | assert(T != LastT && "Type unwrapping failed to unwrap!"); |
3182 | (void)LastT; |
3183 | } while (true); |
3184 | } |
3185 | |
3186 | llvm::DIType *CGDebugInfo::getTypeOrNull(QualType Ty) { |
3187 | assert(Ty == UnwrapTypeForDebugInfo(Ty, CGM.getContext())); |
3188 | auto It = TypeCache.find(Ty.getAsOpaquePtr()); |
3189 | if (It != TypeCache.end()) { |
3190 | |
3191 | if (llvm::Metadata *V = It->second) |
3192 | return cast<llvm::DIType>(V); |
3193 | } |
3194 | |
3195 | return nullptr; |
3196 | } |
3197 | |
3198 | void CGDebugInfo::completeTemplateDefinition( |
3199 | const ClassTemplateSpecializationDecl &SD) { |
3200 | completeUnusedClass(SD); |
3201 | } |
3202 | |
3203 | void CGDebugInfo::completeUnusedClass(const CXXRecordDecl &D) { |
3204 | if (DebugKind <= codegenoptions::DebugLineTablesOnly) |
3205 | return; |
3206 | |
3207 | completeClassData(&D); |
3208 | |
3209 | |
3210 | RetainedTypes.push_back(CGM.getContext().getRecordType(&D).getAsOpaquePtr()); |
3211 | } |
3212 | |
3213 | llvm::DIType *CGDebugInfo::getOrCreateType(QualType Ty, llvm::DIFile *Unit) { |
3214 | if (Ty.isNull()) |
3215 | return nullptr; |
3216 | |
3217 | llvm::TimeTraceScope TimeScope("DebugType", [&]() { |
3218 | std::string Name; |
3219 | llvm::raw_string_ostream OS(Name); |
3220 | Ty.print(OS, getPrintingPolicy()); |
3221 | return Name; |
3222 | }); |
3223 | |
3224 | |
3225 | Ty = UnwrapTypeForDebugInfo(Ty, CGM.getContext()); |
3226 | |
3227 | if (auto *T = getTypeOrNull(Ty)) |
3228 | return T; |
3229 | |
3230 | llvm::DIType *Res = CreateTypeNode(Ty, Unit); |
3231 | void *TyPtr = Ty.getAsOpaquePtr(); |
3232 | |
3233 | |
3234 | TypeCache[TyPtr].reset(Res); |
3235 | |
3236 | return Res; |
3237 | } |
3238 | |
3239 | llvm::DIModule *CGDebugInfo::getParentModuleOrNull(const Decl *D) { |
3240 | |
3241 | if (isa<RecordDecl>(D) && !cast<RecordDecl>(D)->getDefinition()) |
3242 | return nullptr; |
3243 | if (DebugTypeExtRefs && D->isFromASTFile()) { |
3244 | |
3245 | auto *Reader = CGM.getContext().getExternalSource(); |
3246 | auto Idx = D->getOwningModuleID(); |
3247 | auto Info = Reader->getSourceDescriptor(Idx); |
3248 | if (Info) |
3249 | return getOrCreateModuleRef(*Info, true); |
3250 | } else if (ClangModuleMap) { |
3251 | |
3252 | |
3253 | |
3254 | |
3255 | |
3256 | |
3257 | |
3258 | |
3259 | |
3260 | |
3261 | if (Module *M = D->getOwningModule()) { |
3262 | |
3263 | auto Info = ASTSourceDescriptor(*M); |
3264 | return getOrCreateModuleRef(Info, false); |
3265 | } else { |
3266 | |
3267 | return getOrCreateModuleRef(PCHDescriptor, false); |
3268 | } |
3269 | } |
3270 | |
3271 | return nullptr; |
3272 | } |
3273 | |
3274 | llvm::DIType *CGDebugInfo::CreateTypeNode(QualType Ty, llvm::DIFile *Unit) { |
3275 | |
3276 | if (Ty.hasLocalQualifiers()) |
3277 | return CreateQualifiedType(Ty, Unit); |
3278 | |
3279 | |
3280 | switch (Ty->getTypeClass()) { |
3281 | #define TYPE(Class, Base) |
3282 | #define ABSTRACT_TYPE(Class, Base) |
3283 | #define NON_CANONICAL_TYPE(Class, Base) |
3284 | #define DEPENDENT_TYPE(Class, Base) case Type::Class: |
3285 | #include "clang/AST/TypeNodes.inc" |
3286 | llvm_unreachable("Dependent types cannot show up in debug information"); |
3287 | |
3288 | case Type::ExtVector: |
3289 | case Type::Vector: |
3290 | return CreateType(cast<VectorType>(Ty), Unit); |
3291 | case Type::ConstantMatrix: |
3292 | return CreateType(cast<ConstantMatrixType>(Ty), Unit); |
3293 | case Type::ObjCObjectPointer: |
3294 | return CreateType(cast<ObjCObjectPointerType>(Ty), Unit); |
3295 | case Type::ObjCObject: |
3296 | return CreateType(cast<ObjCObjectType>(Ty), Unit); |
3297 | case Type::ObjCTypeParam: |
3298 | return CreateType(cast<ObjCTypeParamType>(Ty), Unit); |
3299 | case Type::ObjCInterface: |
3300 | return CreateType(cast<ObjCInterfaceType>(Ty), Unit); |
3301 | case Type::Builtin: |
3302 | return CreateType(cast<BuiltinType>(Ty)); |
3303 | case Type::Complex: |
3304 | return CreateType(cast<ComplexType>(Ty)); |
3305 | case Type::Pointer: |
3306 | return CreateType(cast<PointerType>(Ty), Unit); |
3307 | case Type::BlockPointer: |
3308 | return CreateType(cast<BlockPointerType>(Ty), Unit); |
3309 | case Type::Typedef: |
3310 | return CreateType(cast<TypedefType>(Ty), Unit); |
3311 | case Type::Record: |
3312 | return CreateType(cast<RecordType>(Ty)); |
3313 | case Type::Enum: |
3314 | return CreateEnumType(cast<EnumType>(Ty)); |
3315 | case Type::FunctionProto: |
3316 | case Type::FunctionNoProto: |
3317 | return CreateType(cast<FunctionType>(Ty), Unit); |
3318 | case Type::ConstantArray: |
3319 | case Type::VariableArray: |
3320 | case Type::IncompleteArray: |
3321 | return CreateType(cast<ArrayType>(Ty), Unit); |
3322 | |
3323 | case Type::LValueReference: |
3324 | return CreateType(cast<LValueReferenceType>(Ty), Unit); |
3325 | case Type::RValueReference: |
3326 | return CreateType(cast<RValueReferenceType>(Ty), Unit); |
3327 | |
3328 | case Type::MemberPointer: |
3329 | return CreateType(cast<MemberPointerType>(Ty), Unit); |
3330 | |
3331 | case Type::Atomic: |
3332 | return CreateType(cast<AtomicType>(Ty), Unit); |
3333 | |
3334 | case Type::ExtInt: |
3335 | return CreateType(cast<ExtIntType>(Ty)); |
3336 | case Type::Pipe: |
3337 | return CreateType(cast<PipeType>(Ty), Unit); |
3338 | |
3339 | case Type::TemplateSpecialization: |
3340 | return CreateType(cast<TemplateSpecializationType>(Ty), Unit); |
3341 | |
3342 | case Type::Auto: |
3343 | case Type::Attributed: |
3344 | case Type::Adjusted: |
3345 | case Type::Decayed: |
3346 | case Type::DeducedTemplateSpecialization: |
3347 | case Type::Elaborated: |
3348 | case Type::Paren: |
3349 | case Type::MacroQualified: |
3350 | case Type::SubstTemplateTypeParm: |
3351 | case Type::TypeOfExpr: |
3352 | case Type::TypeOf: |
3353 | case Type::Decltype: |
3354 | case Type::UnaryTransform: |
3355 | break; |
3356 | } |
3357 | |
3358 | llvm_unreachable("type should have been unwrapped!"); |
3359 | } |
3360 | |
3361 | llvm::DICompositeType * |
3362 | CGDebugInfo::getOrCreateLimitedType(const RecordType *Ty) { |
3363 | QualType QTy(Ty, 0); |
3364 | |
3365 | auto *T = cast_or_null<llvm::DICompositeType>(getTypeOrNull(QTy)); |
3366 | |
3367 | |
3368 | |
3369 | |
3370 | if (T && !T->isForwardDecl()) |
3371 | return T; |
3372 | |
3373 | |
3374 | llvm::DICompositeType *Res = CreateLimitedType(Ty); |
3375 | |
3376 | |
3377 | |
3378 | |
3379 | DBuilder.replaceArrays(Res, T ? T->getElements() : llvm::DINodeArray()); |
3380 | |
3381 | |
3382 | TypeCache[QTy.getAsOpaquePtr()].reset(Res); |
3383 | return Res; |
3384 | } |
3385 | |
3386 | |
3387 | llvm::DICompositeType *CGDebugInfo::CreateLimitedType(const RecordType *Ty) { |
3388 | RecordDecl *RD = Ty->getDecl(); |
3389 | |
3390 | |
3391 | StringRef RDName = getClassName(RD); |
3392 | const SourceLocation Loc = RD->getLocation(); |
3393 | llvm::DIFile *DefUnit = nullptr; |
3394 | unsigned Line = 0; |
3395 | if (Loc.isValid()) { |
3396 | DefUnit = getOrCreateFile(Loc); |
3397 | Line = getLineNumber(Loc); |
3398 | } |
3399 | |
3400 | llvm::DIScope *RDContext = getDeclContextDescriptor(RD); |
3401 | |
3402 | |
3403 | |
3404 | auto *T = cast_or_null<llvm::DICompositeType>( |
3405 | getTypeOrNull(CGM.getContext().getRecordType(RD))); |
3406 | if (T && (!T->isForwardDecl() || !RD->getDefinition())) |
3407 | return T; |
3408 | |
3409 | |
3410 | |
3411 | const RecordDecl *D = RD->getDefinition(); |
3412 | if (!D || !D->isCompleteDefinition()) |
3413 | return getOrCreateRecordFwdDecl(Ty, RDContext); |
3414 | |
3415 | uint64_t Size = CGM.getContext().getTypeSize(Ty); |
3416 | auto Align = getDeclAlignIfRequired(D, CGM.getContext()); |
3417 | |
3418 | SmallString<256> Identifier = getTypeIdentifier(Ty, CGM, TheCU); |
3419 | |
3420 | |
3421 | |
3422 | auto Flags = llvm::DINode::FlagZero; |
3423 | if (auto CXXRD = dyn_cast<CXXRecordDecl>(RD)) { |
3424 | if (CGM.getCXXABI().getRecordArgABI(CXXRD) == CGCXXABI::RAA_Indirect) |
3425 | Flags |= llvm::DINode::FlagTypePassByReference; |
3426 | else |
3427 | Flags |= llvm::DINode::FlagTypePassByValue; |
3428 | |
3429 | |
3430 | if (!CXXRD->isTrivial()) |
3431 | Flags |= llvm::DINode::FlagNonTrivial; |
3432 | |
3433 | |
3434 | if (CXXRD->isAnonymousStructOrUnion()) |
3435 | Flags |= llvm::DINode::FlagExportSymbols; |
3436 | } |
3437 | |
3438 | llvm::DICompositeType *RealDecl = DBuilder.createReplaceableCompositeType( |
3439 | getTagForRecord(RD), RDName, RDContext, DefUnit, Line, 0, Size, Align, |
3440 | Flags, Identifier); |
3441 | |
3442 | |
3443 | |
3444 | switch (RealDecl->getTag()) { |
3445 | default: |
3446 | llvm_unreachable("invalid composite type tag"); |
3447 | |
3448 | case llvm::dwarf::DW_TAG_array_type: |
3449 | case llvm::dwarf::DW_TAG_enumeration_type: |
3450 | |
3451 | |
3452 | |
3453 | |
3454 | if (Identifier.empty()) |
3455 | break; |
3456 | LLVM_FALLTHROUGH; |
3457 | |
3458 | case llvm::dwarf::DW_TAG_structure_type: |
3459 | case llvm::dwarf::DW_TAG_union_type: |
3460 | case llvm::dwarf::DW_TAG_class_type: |
3461 | |
3462 | RealDecl = |
3463 | llvm::MDNode::replaceWithDistinct(llvm::TempDICompositeType(RealDecl)); |
3464 | break; |
3465 | } |
3466 | |
3467 | RegionMap[Ty->getDecl()].reset(RealDecl); |
3468 | TypeCache[QualType(Ty, 0).getAsOpaquePtr()].reset(RealDecl); |
3469 | |
3470 | if (const auto *TSpecial = dyn_cast<ClassTemplateSpecializationDecl>(RD)) |
3471 | DBuilder.replaceArrays(RealDecl, llvm::DINodeArray(), |
3472 | CollectCXXTemplateParams(TSpecial, DefUnit)); |
3473 | return RealDecl; |
3474 | } |
3475 | |
3476 | void CGDebugInfo::CollectContainingType(const CXXRecordDecl *RD, |
3477 | llvm::DICompositeType *RealDecl) { |
3478 | |
3479 | llvm::DICompositeType *ContainingType = nullptr; |
3480 | const ASTRecordLayout &RL = CGM.getContext().getASTRecordLayout(RD); |
3481 | if (const CXXRecordDecl *PBase = RL.getPrimaryBase()) { |
3482 | |
3483 | while (1) { |
3484 | const ASTRecordLayout &BRL = CGM.getContext().getASTRecordLayout(PBase); |
3485 | const CXXRecordDecl *PBT = BRL.getPrimaryBase(); |
3486 | if (PBT && !BRL.isPrimaryBaseVirtual()) |
3487 | PBase = PBT; |
3488 | else |
3489 | break; |
3490 | } |
3491 | ContainingType = cast<llvm::DICompositeType>( |
3492 | getOrCreateType(QualType(PBase->getTypeForDecl(), 0), |
3493 | getOrCreateFile(RD->getLocation()))); |
3494 | } else if (RD->isDynamicClass()) |
3495 | ContainingType = RealDecl; |
3496 | |
3497 | DBuilder.replaceVTableHolder(RealDecl, ContainingType); |
3498 | } |
3499 | |
3500 | llvm::DIType *CGDebugInfo::CreateMemberType(llvm::DIFile *Unit, QualType FType, |
3501 | StringRef Name, uint64_t *Offset) { |
3502 | llvm::DIType *FieldTy = CGDebugInfo::getOrCreateType(FType, Unit); |
3503 | uint64_t FieldSize = CGM.getContext().getTypeSize(FType); |
3504 | auto FieldAlign = getTypeAlignIfRequired(FType, CGM.getContext()); |
3505 | llvm::DIType *Ty = |
3506 | DBuilder.createMemberType(Unit, Name, Unit, 0, FieldSize, FieldAlign, |
3507 | *Offset, llvm::DINode::FlagZero, FieldTy); |
3508 | *Offset += FieldSize; |
3509 | return Ty; |
3510 | } |
3511 | |
3512 | void CGDebugInfo::collectFunctionDeclProps(GlobalDecl GD, llvm::DIFile *Unit, |
3513 | StringRef &Name, |
3514 | StringRef &LinkageName, |
3515 | llvm::DIScope *&FDContext, |
3516 | llvm::DINodeArray &TParamsArray, |
3517 | llvm::DINode::DIFlags &Flags) { |
3518 | const auto *FD = cast<FunctionDecl>(GD.getCanonicalDecl().getDecl()); |
3519 | Name = getFunctionName(FD); |
3520 | |
3521 | if (FD->getType()->getAs<FunctionProtoType>()) |
3522 | LinkageName = CGM.getMangledName(GD); |
3523 | if (FD->hasPrototype()) |
3524 | Flags |= llvm::DINode::FlagPrototyped; |
3525 | |
3526 | |
3527 | |
3528 | if (LinkageName == Name || (!CGM.getCodeGenOpts().EmitGcovArcs && |
3529 | !CGM.getCodeGenOpts().EmitGcovNotes && |
3530 | !CGM.getCodeGenOpts().DebugInfoForProfiling && |
3531 | !CGM.getCodeGenOpts().PseudoProbeForProfiling && |
3532 | DebugKind <= codegenoptions::DebugLineTablesOnly)) |
3533 | LinkageName = StringRef(); |
3534 | |
3535 | |
3536 | |
3537 | if (CGM.getCodeGenOpts().hasReducedDebugInfo() || |
3538 | (DebugKind == codegenoptions::DebugLineTablesOnly && |
3539 | CGM.getCodeGenOpts().EmitCodeView)) { |
3540 | if (const NamespaceDecl *NSDecl = |
3541 | dyn_cast_or_null<NamespaceDecl>(FD->getDeclContext())) |
3542 | FDContext = getOrCreateNamespace(NSDecl); |
3543 | else if (const RecordDecl *RDecl = |
3544 | dyn_cast_or_null<RecordDecl>(FD->getDeclContext())) { |
3545 | llvm::DIScope *Mod = getParentModuleOrNull(RDecl); |
3546 | FDContext = getContextDescriptor(RDecl, Mod ? Mod : TheCU); |
3547 | } |
3548 | } |
3549 | if (CGM.getCodeGenOpts().hasReducedDebugInfo()) { |
3550 | |
3551 | if (FD->isNoReturn()) |
3552 | Flags |= llvm::DINode::FlagNoReturn; |
3553 | |
3554 | TParamsArray = CollectFunctionTemplateParams(FD, Unit); |
3555 | } |
3556 | } |
3557 | |
3558 | void CGDebugInfo::collectVarDeclProps(const VarDecl *VD, llvm::DIFile *&Unit, |
3559 | unsigned &LineNo, QualType &T, |
3560 | StringRef &Name, StringRef &LinkageName, |
3561 | llvm::MDTuple *&TemplateParameters, |
3562 | llvm::DIScope *&VDContext) { |
3563 | Unit = getOrCreateFile(VD->getLocation()); |
3564 | LineNo = getLineNumber(VD->getLocation()); |
3565 | |
3566 | setLocation(VD->getLocation()); |
3567 | |
3568 | T = VD->getType(); |
3569 | if (T->isIncompleteArrayType()) { |
3570 | |
3571 | llvm::APInt ConstVal(32, 1); |
3572 | QualType ET = CGM.getContext().getAsArrayType(T)->getElementType(); |
3573 | |
3574 | T = CGM.getContext().getConstantArrayType(ET, ConstVal, nullptr, |
3575 | ArrayType::Normal, 0); |
3576 | } |
3577 | |
3578 | Name = VD->getName(); |
3579 | if (VD->getDeclContext() && !isa<FunctionDecl>(VD->getDeclContext()) && |
3580 | !isa<ObjCMethodDecl>(VD->getDeclContext())) |
3581 | LinkageName = CGM.getMangledName(VD); |
3582 | if (LinkageName == Name) |
3583 | LinkageName = StringRef(); |
3584 | |
3585 | if (isa<VarTemplateSpecializationDecl>(VD)) { |
3586 | llvm::DINodeArray parameterNodes = CollectVarTemplateParams(VD, &*Unit); |
3587 | TemplateParameters = parameterNodes.get(); |
3588 | } else { |
3589 | TemplateParameters = nullptr; |
3590 | } |
3591 | |
3592 | |
3593 | |
3594 | |
3595 | |
3596 | |
3597 | |
3598 | const DeclContext *DC = VD->isStaticDataMember() ? VD->getLexicalDeclContext() |
3599 | : VD->getDeclContext(); |
3600 | |
3601 | |
3602 | |
3603 | |
3604 | |
3605 | |
3606 | if (DC->isRecord()) |
3607 | DC = CGM.getContext().getTranslationUnitDecl(); |
3608 | |
3609 | llvm::DIScope *Mod = getParentModuleOrNull(VD); |
3610 | VDContext = getContextDescriptor(cast<Decl>(DC), Mod ? Mod : TheCU); |
3611 | } |
3612 | |
3613 | llvm::DISubprogram *CGDebugInfo::getFunctionFwdDeclOrStub(GlobalDecl GD, |
3614 | bool Stub) { |
3615 | llvm::DINodeArray TParamsArray; |
3616 | StringRef Name, LinkageName; |
3617 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
3618 | llvm::DISubprogram::DISPFlags SPFlags = llvm::DISubprogram::SPFlagZero; |
3619 | SourceLocation Loc = GD.getDecl()->getLocation(); |
3620 | llvm::DIFile *Unit = getOrCreateFile(Loc); |
3621 | llvm::DIScope *DContext = Unit; |
3622 | unsigned Line = getLineNumber(Loc); |
3623 | collectFunctionDeclProps(GD, Unit, Name, LinkageName, DContext, TParamsArray, |
3624 | Flags); |
3625 | auto *FD = cast<FunctionDecl>(GD.getDecl()); |
3626 | |
3627 | |
3628 | SmallVector<QualType, 16> ArgTypes; |
3629 | for (const ParmVarDecl *Parm : FD->parameters()) |
3630 | ArgTypes.push_back(Parm->getType()); |
3631 | |
3632 | CallingConv CC = FD->getType()->castAs<FunctionType>()->getCallConv(); |
3633 | QualType FnType = CGM.getContext().getFunctionType( |
3634 | FD->getReturnType(), ArgTypes, FunctionProtoType::ExtProtoInfo(CC)); |
3635 | if (!FD->isExternallyVisible()) |
3636 | SPFlags |= llvm::DISubprogram::SPFlagLocalToUnit; |
3637 | if (CGM.getLangOpts().Optimize) |
3638 | SPFlags |= llvm::DISubprogram::SPFlagOptimized; |
3639 | |
3640 | if (Stub) { |
3641 | Flags |= getCallSiteRelatedAttrs(); |
3642 | SPFlags |= llvm::DISubprogram::SPFlagDefinition; |
3643 | return DBuilder.createFunction( |
3644 | DContext, Name, LinkageName, Unit, Line, |
3645 | getOrCreateFunctionType(GD.getDecl(), FnType, Unit), 0, Flags, SPFlags, |
3646 | TParamsArray.get(), getFunctionDeclaration(FD)); |
3647 | } |
3648 | |
3649 | llvm::DISubprogram *SP = DBuilder.createTempFunctionFwdDecl( |
3650 | DContext, Name, LinkageName, Unit, Line, |
3651 | getOrCreateFunctionType(GD.getDecl(), FnType, Unit), 0, Flags, SPFlags, |
3652 | TParamsArray.get(), getFunctionDeclaration(FD)); |
3653 | const FunctionDecl *CanonDecl = FD->getCanonicalDecl(); |
3654 | FwdDeclReplaceMap.emplace_back(std::piecewise_construct, |
3655 | std::make_tuple(CanonDecl), |
3656 | std::make_tuple(SP)); |
3657 | return SP; |
3658 | } |
3659 | |
3660 | llvm::DISubprogram *CGDebugInfo::getFunctionForwardDeclaration(GlobalDecl GD) { |
3661 | return getFunctionFwdDeclOrStub(GD, false); |
3662 | } |
3663 | |
3664 | llvm::DISubprogram *CGDebugInfo::getFunctionStub(GlobalDecl GD) { |
3665 | return getFunctionFwdDeclOrStub(GD, true); |
3666 | } |
3667 | |
3668 | llvm::DIGlobalVariable * |
3669 | CGDebugInfo::getGlobalVariableForwardDeclaration(const VarDecl *VD) { |
3670 | QualType T; |
3671 | StringRef Name, LinkageName; |
3672 | SourceLocation Loc = VD->getLocation(); |
3673 | llvm::DIFile *Unit = getOrCreateFile(Loc); |
3674 | llvm::DIScope *DContext = Unit; |
3675 | unsigned Line = getLineNumber(Loc); |
3676 | llvm::MDTuple *TemplateParameters = nullptr; |
3677 | |
3678 | collectVarDeclProps(VD, Unit, Line, T, Name, LinkageName, TemplateParameters, |
3679 | DContext); |
3680 | auto Align = getDeclAlignIfRequired(VD, CGM.getContext()); |
3681 | auto *GV = DBuilder.createTempGlobalVariableFwdDecl( |
3682 | DContext, Name, LinkageName, Unit, Line, getOrCreateType(T, Unit), |
3683 | !VD->isExternallyVisible(), nullptr, TemplateParameters, Align); |
3684 | FwdDeclReplaceMap.emplace_back( |
3685 | std::piecewise_construct, |
3686 | std::make_tuple(cast<VarDecl>(VD->getCanonicalDecl())), |
3687 | std::make_tuple(static_cast<llvm::Metadata *>(GV))); |
3688 | return GV; |
3689 | } |
3690 | |
3691 | llvm::DINode *CGDebugInfo::getDeclarationOrDefinition(const Decl *D) { |
3692 | |
3693 | |
3694 | |
3695 | |
3696 | if (const auto *TD = dyn_cast<TypeDecl>(D)) |
3697 | return getOrCreateType(CGM.getContext().getTypeDeclType(TD), |
3698 | getOrCreateFile(TD->getLocation())); |
3699 | auto I = DeclCache.find(D->getCanonicalDecl()); |
3700 | |
3701 | if (I != DeclCache.end()) { |
3702 | auto N = I->second; |
3703 | if (auto *GVE = dyn_cast_or_null<llvm::DIGlobalVariableExpression>(N)) |
3704 | return GVE->getVariable(); |
3705 | return dyn_cast_or_null<llvm::DINode>(N); |
3706 | } |
3707 | |
3708 | |
3709 | |
3710 | if (const auto *FD = dyn_cast<FunctionDecl>(D)) |
3711 | return getFunctionForwardDeclaration(FD); |
3712 | else if (const auto *VD = dyn_cast<VarDecl>(D)) |
3713 | return getGlobalVariableForwardDeclaration(VD); |
3714 | |
3715 | return nullptr; |
3716 | } |
3717 | |
3718 | llvm::DISubprogram *CGDebugInfo::getFunctionDeclaration(const Decl *D) { |
3719 | if (!D || DebugKind <= codegenoptions::DebugLineTablesOnly) |
3720 | return nullptr; |
3721 | |
3722 | const auto *FD = dyn_cast<FunctionDecl>(D); |
3723 | if (!FD) |
3724 | return nullptr; |
3725 | |
3726 | |
3727 | auto *S = getDeclContextDescriptor(D); |
3728 | |
3729 | auto MI = SPCache.find(FD->getCanonicalDecl()); |
3730 | if (MI == SPCache.end()) { |
3731 | if (const auto *MD = dyn_cast<CXXMethodDecl>(FD->getCanonicalDecl())) { |
3732 | return CreateCXXMemberFunction(MD, getOrCreateFile(MD->getLocation()), |
3733 | cast<llvm::DICompositeType>(S)); |
3734 | } |
3735 | } |
3736 | if (MI != SPCache.end()) { |
3737 | auto *SP = dyn_cast_or_null<llvm::DISubprogram>(MI->second); |
3738 | if (SP && !SP->isDefinition()) |
3739 | return SP; |
3740 | } |
3741 | |
3742 | for (auto NextFD : FD->redecls()) { |
3743 | auto MI = SPCache.find(NextFD->getCanonicalDecl()); |
3744 | if (MI != SPCache.end()) { |
3745 | auto *SP = dyn_cast_or_null<llvm::DISubprogram>(MI->second); |
3746 | if (SP && !SP->isDefinition()) |
3747 | return SP; |
3748 | } |
3749 | } |
3750 | return nullptr; |
3751 | } |
3752 | |
3753 | llvm::DISubprogram *CGDebugInfo::getObjCMethodDeclaration( |
3754 | const Decl *D, llvm::DISubroutineType *FnType, unsigned LineNo, |
3755 | llvm::DINode::DIFlags Flags, llvm::DISubprogram::DISPFlags SPFlags) { |
3756 | if (!D || DebugKind <= codegenoptions::DebugLineTablesOnly) |
3757 | return nullptr; |
3758 | |
3759 | const auto *OMD = dyn_cast<ObjCMethodDecl>(D); |
3760 | if (!OMD) |
3761 | return nullptr; |
3762 | |
3763 | if (CGM.getCodeGenOpts().DwarfVersion < 5 && !OMD->isDirectMethod()) |
3764 | return nullptr; |
3765 | |
3766 | if (OMD->isDirectMethod()) |
3767 | SPFlags |= llvm::DISubprogram::SPFlagObjCDirect; |
3768 | |
3769 | |
3770 | |
3771 | auto *ID = dyn_cast_or_null<ObjCInterfaceDecl>(D->getDeclContext()); |
3772 | if (!ID) |
3773 | ID = OMD->getClassInterface(); |
3774 | if (!ID) |
3775 | return nullptr; |
3776 | QualType QTy(ID->getTypeForDecl(), 0); |
3777 | auto It = TypeCache.find(QTy.getAsOpaquePtr()); |
3778 | if (It == TypeCache.end()) |
3779 | return nullptr; |
3780 | auto *InterfaceType = cast<llvm::DICompositeType>(It->second); |
3781 | llvm::DISubprogram *FD = DBuilder.createFunction( |
3782 | InterfaceType, getObjCMethodName(OMD), StringRef(), |
3783 | InterfaceType->getFile(), LineNo, FnType, LineNo, Flags, SPFlags); |
3784 | DBuilder.finalizeSubprogram(FD); |
3785 | ObjCMethodCache[ID].push_back({FD, OMD->isDirectMethod()}); |
3786 | return FD; |
3787 | } |
3788 | |
3789 | |
3790 | |
3791 | llvm::DISubroutineType *CGDebugInfo::getOrCreateFunctionType(const Decl *D, |
3792 | QualType FnType, |
3793 | llvm::DIFile *F) { |
3794 | |
3795 | |
3796 | if (!D || (DebugKind <= codegenoptions::DebugLineTablesOnly && |
3797 | !CGM.getCodeGenOpts().EmitCodeView)) |
3798 | |
3799 | |
3800 | return DBuilder.createSubroutineType(DBuilder.getOrCreateTypeArray(None)); |
3801 | |
3802 | if (const auto *Method = dyn_cast<CXXMethodDecl>(D)) |
3803 | return getOrCreateMethodType(Method, F, false); |
3804 | |
3805 | const auto *FTy = FnType->getAs<FunctionType>(); |
3806 | CallingConv CC = FTy ? FTy->getCallConv() : CallingConv::CC_C; |
3807 | |
3808 | if (const auto *OMethod = dyn_cast<ObjCMethodDecl>(D)) { |
3809 | |
3810 | SmallVector<llvm::Metadata *, 16> Elts; |
3811 | |
3812 | |
3813 | QualType ResultTy = OMethod->getReturnType(); |
3814 | |
3815 | |
3816 | if (ResultTy == CGM.getContext().getObjCInstanceType()) |
3817 | ResultTy = CGM.getContext().getPointerType( |
3818 | QualType(OMethod->getClassInterface()->getTypeForDecl(), 0)); |
3819 | |
3820 | Elts.push_back(getOrCreateType(ResultTy, F)); |
3821 | |
3822 | QualType SelfDeclTy; |
3823 | if (auto *SelfDecl = OMethod->getSelfDecl()) |
3824 | SelfDeclTy = SelfDecl->getType(); |
3825 | else if (auto *FPT = dyn_cast<FunctionProtoType>(FnType)) |
3826 | if (FPT->getNumParams() > 1) |
3827 | SelfDeclTy = FPT->getParamType(0); |
3828 | if (!SelfDeclTy.isNull()) |
3829 | Elts.push_back( |
3830 | CreateSelfType(SelfDeclTy, getOrCreateType(SelfDeclTy, F))); |
3831 | |
3832 | Elts.push_back(DBuilder.createArtificialType( |
3833 | getOrCreateType(CGM.getContext().getObjCSelType(), F))); |
3834 | |
3835 | for (const auto *PI : OMethod->parameters()) |
3836 | Elts.push_back(getOrCreateType(PI->getType(), F)); |
3837 | |
3838 | if (OMethod->isVariadic()) |
3839 | Elts.push_back(DBuilder.createUnspecifiedParameter()); |
3840 | |
3841 | llvm::DITypeRefArray EltTypeArray = DBuilder.getOrCreateTypeArray(Elts); |
3842 | return DBuilder.createSubroutineType(EltTypeArray, llvm::DINode::FlagZero, |
3843 | getDwarfCC(CC)); |
3844 | } |
3845 | |
3846 | |
3847 | |
3848 | if (const auto *FD = dyn_cast<FunctionDecl>(D)) |
3849 | if (FD->isVariadic()) { |
3850 | SmallVector<llvm::Metadata *, 16> EltTys; |
3851 | EltTys.push_back(getOrCreateType(FD->getReturnType(), F)); |
3852 | if (const auto *FPT = dyn_cast<FunctionProtoType>(FnType)) |
3853 | for (QualType ParamType : FPT->param_types()) |
3854 | EltTys.push_back(getOrCreateType(ParamType, F)); |
3855 | EltTys.push_back(DBuilder.createUnspecifiedParameter()); |
3856 | llvm::DITypeRefArray EltTypeArray = DBuilder.getOrCreateTypeArray(EltTys); |
3857 | return DBuilder.createSubroutineType(EltTypeArray, llvm::DINode::FlagZero, |
3858 | getDwarfCC(CC)); |
3859 | } |
3860 | |
3861 | return cast<llvm::DISubroutineType>(getOrCreateType(FnType, F)); |
3862 | } |
3863 | |
3864 | void CGDebugInfo::emitFunctionStart(GlobalDecl GD, SourceLocation Loc, |
3865 | SourceLocation ScopeLoc, QualType FnType, |
3866 | llvm::Function *Fn, bool CurFuncIsThunk) { |
3867 | StringRef Name; |
3868 | StringRef LinkageName; |
3869 | |
3870 | FnBeginRegionCount.push_back(LexicalBlockStack.size()); |
3871 | |
3872 | const Decl *D = GD.getDecl(); |
3873 | bool HasDecl = (D != nullptr); |
3874 | |
3875 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
3876 | llvm::DISubprogram::DISPFlags SPFlags = llvm::DISubprogram::SPFlagZero; |
3877 | llvm::DIFile *Unit = getOrCreateFile(Loc); |
3878 | llvm::DIScope *FDContext = Unit; |
3879 | llvm::DINodeArray TParamsArray; |
3880 | if (!HasDecl) { |
3881 | |
3882 | LinkageName = Fn->getName(); |
3883 | } else if (const auto *FD = dyn_cast<FunctionDecl>(D)) { |
3884 | |
3885 | auto FI = SPCache.find(FD->getCanonicalDecl()); |
3886 | if (FI != SPCache.end()) { |
3887 | auto *SP = dyn_cast_or_null<llvm::DISubprogram>(FI->second); |
3888 | if (SP && SP->isDefinition()) { |
3889 | LexicalBlockStack.emplace_back(SP); |
3890 | RegionMap[D].reset(SP); |
3891 | return; |
3892 | } |
3893 | } |
3894 | collectFunctionDeclProps(GD, Unit, Name, LinkageName, FDContext, |
3895 | TParamsArray, Flags); |
3896 | } else if (const auto *OMD = dyn_cast<ObjCMethodDecl>(D)) { |
3897 | Name = getObjCMethodName(OMD); |
3898 | Flags |= llvm::DINode::FlagPrototyped; |
3899 | } else if (isa<VarDecl>(D) && |
3900 | GD.getDynamicInitKind() != DynamicInitKind::NoStub) { |
3901 | |
3902 | Name = getDynamicInitializerName(cast<VarDecl>(D), GD.getDynamicInitKind(), |
3903 | Fn); |
3904 | } else { |
3905 | Name = Fn->getName(); |
3906 | |
3907 | if (isa<BlockDecl>(D)) |
3908 | LinkageName = Name; |
3909 | |
3910 | Flags |= llvm::DINode::FlagPrototyped; |
3911 | } |
3912 | if (Name.startswith("\01")) |
3913 | Name = Name.substr(1); |
3914 | |
3915 | if (!HasDecl || D->isImplicit() || D->hasAttr<ArtificialAttr>() || |
3916 | (isa<VarDecl>(D) && GD.getDynamicInitKind() != DynamicInitKind::NoStub)) { |
3917 | Flags |= llvm::DINode::FlagArtificial; |
3918 | |
3919 | CurLoc = SourceLocation(); |
3920 | } |
3921 | |
3922 | if (CurFuncIsThunk) |
3923 | Flags |= llvm::DINode::FlagThunk; |
3924 | |
3925 | if (Fn->hasLocalLinkage()) |
3926 | SPFlags |= llvm::DISubprogram::SPFlagLocalToUnit; |
3927 | if (CGM.getLangOpts().Optimize) |
3928 | SPFlags |= llvm::DISubprogram::SPFlagOptimized; |
3929 | |
3930 | llvm::DINode::DIFlags FlagsForDef = Flags | getCallSiteRelatedAttrs(); |
3931 | llvm::DISubprogram::DISPFlags SPFlagsForDef = |
3932 | SPFlags | llvm::DISubprogram::SPFlagDefinition; |
3933 | |
3934 | const unsigned LineNo = getLineNumber(Loc.isValid() ? Loc : CurLoc); |
3935 | unsigned ScopeLine = getLineNumber(ScopeLoc); |
3936 | llvm::DISubroutineType *DIFnType = getOrCreateFunctionType(D, FnType, Unit); |
3937 | llvm::DISubprogram *Decl = nullptr; |
3938 | if (D) |
3939 | Decl = isa<ObjCMethodDecl>(D) |
3940 | ? getObjCMethodDeclaration(D, DIFnType, LineNo, Flags, SPFlags) |
3941 | : getFunctionDeclaration(D); |
3942 | |
3943 | |
3944 | |
3945 | |
3946 | |
3947 | |
3948 | llvm::DISubprogram *SP = DBuilder.createFunction( |
3949 | FDContext, Name, LinkageName, Unit, LineNo, DIFnType, ScopeLine, |
3950 | FlagsForDef, SPFlagsForDef, TParamsArray.get(), Decl); |
3951 | Fn->setSubprogram(SP); |
3952 | |
3953 | |
3954 | |
3955 | if (HasDecl && isa<FunctionDecl>(D)) |
3956 | DeclCache[D->getCanonicalDecl()].reset(SP); |
3957 | |
3958 | |
3959 | LexicalBlockStack.emplace_back(SP); |
3960 | |
3961 | if (HasDecl) |
3962 | RegionMap[D].reset(SP); |
3963 | } |
3964 | |
3965 | void CGDebugInfo::EmitFunctionDecl(GlobalDecl GD, SourceLocation Loc, |
3966 | QualType FnType, llvm::Function *Fn) { |
3967 | StringRef Name; |
3968 | StringRef LinkageName; |
3969 | |
3970 | const Decl *D = GD.getDecl(); |
3971 | if (!D) |
3972 | return; |
3973 | |
3974 | llvm::TimeTraceScope TimeScope("DebugFunction", [&]() { |
3975 | return GetName(D, true); |
3976 | }); |
3977 | |
3978 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
3979 | llvm::DIFile *Unit = getOrCreateFile(Loc); |
3980 | bool IsDeclForCallSite = Fn ? true : false; |
3981 | llvm::DIScope *FDContext = |
3982 | IsDeclForCallSite ? Unit : getDeclContextDescriptor(D); |
3983 | llvm::DINodeArray TParamsArray; |
3984 | if (isa<FunctionDecl>(D)) { |
3985 | |
3986 | collectFunctionDeclProps(GD, Unit, Name, LinkageName, FDContext, |
3987 | TParamsArray, Flags); |
3988 | } else if (const auto *OMD = dyn_cast<ObjCMethodDecl>(D)) { |
3989 | Name = getObjCMethodName(OMD); |
3990 | Flags |= llvm::DINode::FlagPrototyped; |
3991 | } else { |
3992 | llvm_unreachable("not a function or ObjC method"); |
3993 | } |
3994 | if (!Name.empty() && Name[0] == '\01') |
3995 | Name = Name.substr(1); |
3996 | |
3997 | if (D->isImplicit()) { |
3998 | Flags |= llvm::DINode::FlagArtificial; |
3999 | |
4000 | if (Loc.isInvalid()) |
4001 | CurLoc = SourceLocation(); |
4002 | } |
4003 | unsigned LineNo = getLineNumber(Loc); |
4004 | unsigned ScopeLine = 0; |
4005 | llvm::DISubprogram::DISPFlags SPFlags = llvm::DISubprogram::SPFlagZero; |
4006 | if (CGM.getLangOpts().Optimize) |
4007 | SPFlags |= llvm::DISubprogram::SPFlagOptimized; |
4008 | |
4009 | llvm::DISubprogram *SP = DBuilder.createFunction( |
4010 | FDContext, Name, LinkageName, Unit, LineNo, |
4011 | getOrCreateFunctionType(D, FnType, Unit), ScopeLine, Flags, SPFlags, |
4012 | TParamsArray.get(), getFunctionDeclaration(D)); |
4013 | |
4014 | if (IsDeclForCallSite) |
4015 | Fn->setSubprogram(SP); |
4016 | |
4017 | DBuilder.finalizeSubprogram(SP); |
4018 | } |
4019 | |
4020 | void CGDebugInfo::EmitFuncDeclForCallSite(llvm::CallBase *CallOrInvoke, |
4021 | QualType CalleeType, |
4022 | const FunctionDecl *CalleeDecl) { |
4023 | if (!CallOrInvoke) |
4024 | return; |
4025 | auto *Func = CallOrInvoke->getCalledFunction(); |
4026 | if (!Func) |
4027 | return; |
4028 | if (Func->getSubprogram()) |
4029 | return; |
4030 | |
4031 | |
4032 | |
4033 | |
4034 | |
4035 | |
4036 | if (CalleeDecl->getBuiltinID() != 0 || CalleeDecl->hasAttr<NoDebugAttr>() || |
4037 | getCallSiteRelatedAttrs() == llvm::DINode::FlagZero) |
4038 | return; |
4039 | if (CalleeDecl->isReserved(CGM.getLangOpts()) != |
4040 | ReservedIdentifierStatus::NotReserved) |
4041 | return; |
4042 | |
4043 | |
4044 | |
4045 | |
4046 | if (!CalleeDecl->isStatic() && !CalleeDecl->isInlined()) |
4047 | EmitFunctionDecl(CalleeDecl, CalleeDecl->getLocation(), CalleeType, Func); |
4048 | } |
4049 | |
4050 | void CGDebugInfo::EmitInlineFunctionStart(CGBuilderTy &Builder, GlobalDecl GD) { |
4051 | const auto *FD = cast<FunctionDecl>(GD.getDecl()); |
4052 | |
4053 | auto FI = SPCache.find(FD->getCanonicalDecl()); |
4054 | llvm::DISubprogram *SP = nullptr; |
4055 | if (FI != SPCache.end()) |
4056 | SP = dyn_cast_or_null<llvm::DISubprogram>(FI->second); |
4057 | if (!SP || !SP->isDefinition()) |
4058 | SP = getFunctionStub(GD); |
4059 | FnBeginRegionCount.push_back(LexicalBlockStack.size()); |
4060 | LexicalBlockStack.emplace_back(SP); |
4061 | setInlinedAt(Builder.getCurrentDebugLocation()); |
4062 | EmitLocation(Builder, FD->getLocation()); |
4063 | } |
4064 | |
4065 | void CGDebugInfo::EmitInlineFunctionEnd(CGBuilderTy &Builder) { |
4066 | assert(CurInlinedAt && "unbalanced inline scope stack"); |
4067 | EmitFunctionEnd(Builder, nullptr); |
4068 | setInlinedAt(llvm::DebugLoc(CurInlinedAt).getInlinedAt()); |
4069 | } |
4070 | |
4071 | void CGDebugInfo::EmitLocation(CGBuilderTy &Builder, SourceLocation Loc) { |
4072 | |
4073 | setLocation(Loc); |
4074 | |
4075 | if (CurLoc.isInvalid() || CurLoc.isMacroID() || LexicalBlockStack.empty()) |
4076 | return; |
4077 | |
4078 | llvm::MDNode *Scope = LexicalBlockStack.back(); |
4079 | Builder.SetCurrentDebugLocation( |
4080 | llvm::DILocation::get(CGM.getLLVMContext(), getLineNumber(CurLoc), |
4081 | getColumnNumber(CurLoc), Scope, CurInlinedAt)); |
4082 | } |
4083 | |
4084 | void CGDebugInfo::CreateLexicalBlock(SourceLocation Loc) { |
4085 | llvm::MDNode *Back = nullptr; |
4086 | if (!LexicalBlockStack.empty()) |
4087 | Back = LexicalBlockStack.back().get(); |
4088 | LexicalBlockStack.emplace_back(DBuilder.createLexicalBlock( |
4089 | cast<llvm::DIScope>(Back), getOrCreateFile(CurLoc), getLineNumber(CurLoc), |
4090 | getColumnNumber(CurLoc))); |
4091 | } |
4092 | |
4093 | void CGDebugInfo::AppendAddressSpaceXDeref( |
4094 | unsigned AddressSpace, SmallVectorImpl<int64_t> &Expr) const { |
4095 | Optional<unsigned> DWARFAddressSpace = |
4096 | CGM.getTarget().getDWARFAddressSpace(AddressSpace); |
4097 | if (!DWARFAddressSpace) |
4098 | return; |
4099 | |
4100 | Expr.push_back(llvm::dwarf::DW_OP_constu); |
4101 | Expr.push_back(DWARFAddressSpace.getValue()); |
4102 | Expr.push_back(llvm::dwarf::DW_OP_swap); |
4103 | Expr.push_back(llvm::dwarf::DW_OP_xderef); |
4104 | } |
4105 | |
4106 | void CGDebugInfo::EmitLexicalBlockStart(CGBuilderTy &Builder, |
4107 | SourceLocation Loc) { |
4108 | |
4109 | setLocation(Loc); |
4110 | |
4111 | |
4112 | Builder.SetCurrentDebugLocation(llvm::DILocation::get( |
4113 | CGM.getLLVMContext(), getLineNumber(Loc), getColumnNumber(Loc), |
4114 | LexicalBlockStack.back(), CurInlinedAt)); |
4115 | |
4116 | if (DebugKind <= codegenoptions::DebugLineTablesOnly) |
4117 | return; |
4118 | |
4119 | |
4120 | CreateLexicalBlock(Loc); |
4121 | } |
4122 | |
4123 | void CGDebugInfo::EmitLexicalBlockEnd(CGBuilderTy &Builder, |
4124 | SourceLocation Loc) { |
4125 | assert(!LexicalBlockStack.empty() && "Region stack mismatch, stack empty!"); |
4126 | |
4127 | |
4128 | EmitLocation(Builder, Loc); |
4129 | |
4130 | if (DebugKind <= codegenoptions::DebugLineTablesOnly) |
4131 | return; |
4132 | |
4133 | LexicalBlockStack.pop_back(); |
4134 | } |
4135 | |
4136 | void CGDebugInfo::EmitFunctionEnd(CGBuilderTy &Builder, llvm::Function *Fn) { |
4137 | assert(!LexicalBlockStack.empty() && "Region stack mismatch, stack empty!"); |
4138 | unsigned RCount = FnBeginRegionCount.back(); |
4139 | assert(RCount <= LexicalBlockStack.size() && "Region stack mismatch"); |
4140 | |
4141 | |
4142 | while (LexicalBlockStack.size() != RCount) { |
4143 | |
4144 | EmitLocation(Builder, CurLoc); |
4145 | LexicalBlockStack.pop_back(); |
4146 | } |
4147 | FnBeginRegionCount.pop_back(); |
4148 | |
4149 | if (Fn && Fn->getSubprogram()) |
4150 | DBuilder.finalizeSubprogram(Fn->getSubprogram()); |
4151 | } |
4152 | |
4153 | CGDebugInfo::BlockByRefType |
4154 | CGDebugInfo::EmitTypeForVarWithBlocksAttr(const VarDecl *VD, |
4155 | uint64_t *XOffset) { |
4156 | SmallVector<llvm::Metadata *, 5> EltTys; |
4157 | QualType FType; |
4158 | uint64_t FieldSize, FieldOffset; |
4159 | uint32_t FieldAlign; |
4160 | |
4161 | llvm::DIFile *Unit = getOrCreateFile(VD->getLocation()); |
4162 | QualType Type = VD->getType(); |
4163 | |
4164 | FieldOffset = 0; |
4165 | FType = CGM.getContext().getPointerType(CGM.getContext().VoidTy); |
4166 | EltTys.push_back(CreateMemberType(Unit, FType, "__isa", &FieldOffset)); |
4167 | EltTys.push_back(CreateMemberType(Unit, FType, "__forwarding", &FieldOffset)); |
4168 | FType = CGM.getContext().IntTy; |
4169 | EltTys.push_back(CreateMemberType(Unit, FType, "__flags", &FieldOffset)); |
4170 | EltTys.push_back(CreateMemberType(Unit, FType, "__size", &FieldOffset)); |
4171 | |
4172 | bool HasCopyAndDispose = CGM.getContext().BlockRequiresCopying(Type, VD); |
4173 | if (HasCopyAndDispose) { |
4174 | FType = CGM.getContext().getPointerType(CGM.getContext().VoidTy); |
4175 | EltTys.push_back( |
4176 | CreateMemberType(Unit, FType, "__copy_helper", &FieldOffset)); |
4177 | EltTys.push_back( |
4178 | CreateMemberType(Unit, FType, "__destroy_helper", &FieldOffset)); |
4179 | } |
4180 | bool HasByrefExtendedLayout; |
4181 | Qualifiers::ObjCLifetime Lifetime; |
4182 | if (CGM.getContext().getByrefLifetime(Type, Lifetime, |
4183 | HasByrefExtendedLayout) && |
4184 | HasByrefExtendedLayout) { |
4185 | FType = CGM.getContext().getPointerType(CGM.getContext().VoidTy); |
4186 | EltTys.push_back( |
4187 | CreateMemberType(Unit, FType, "__byref_variable_layout", &FieldOffset)); |
4188 | } |
4189 | |
4190 | CharUnits Align = CGM.getContext().getDeclAlign(VD); |
4191 | if (Align > CGM.getContext().toCharUnitsFromBits( |
4192 | CGM.getTarget().getPointerAlign(0))) { |
4193 | CharUnits FieldOffsetInBytes = |
4194 | CGM.getContext().toCharUnitsFromBits(FieldOffset); |
4195 | CharUnits AlignedOffsetInBytes = FieldOffsetInBytes.alignTo(Align); |
4196 | CharUnits NumPaddingBytes = AlignedOffsetInBytes - FieldOffsetInBytes; |
4197 | |
4198 | if (NumPaddingBytes.isPositive()) { |
4199 | llvm::APInt pad(32, NumPaddingBytes.getQuantity()); |
4200 | FType = CGM.getContext().getConstantArrayType( |
4201 | CGM.getContext().CharTy, pad, nullptr, ArrayType::Normal, 0); |
4202 | EltTys.push_back(CreateMemberType(Unit, FType, "", &FieldOffset)); |
4203 | } |
4204 | } |
4205 | |
4206 | FType = Type; |
4207 | llvm::DIType *WrappedTy = getOrCreateType(FType, Unit); |
4208 | FieldSize = CGM.getContext().getTypeSize(FType); |
4209 | FieldAlign = CGM.getContext().toBits(Align); |
4210 | |
4211 | *XOffset = FieldOffset; |
4212 | llvm::DIType *FieldTy = DBuilder.createMemberType( |
4213 | Unit, VD->getName(), Unit, 0, FieldSize, FieldAlign, FieldOffset, |
4214 | llvm::DINode::FlagZero, WrappedTy); |
4215 | EltTys.push_back(FieldTy); |
4216 | FieldOffset += FieldSize; |
4217 | |
4218 | llvm::DINodeArray Elements = DBuilder.getOrCreateArray(EltTys); |
4219 | return {DBuilder.createStructType(Unit, "", Unit, 0, FieldOffset, 0, |
4220 | llvm::DINode::FlagZero, nullptr, Elements), |
4221 | WrappedTy}; |
4222 | } |
4223 | |
4224 | llvm::DILocalVariable *CGDebugInfo::EmitDeclare(const VarDecl *VD, |
4225 | llvm::Value *Storage, |
4226 | llvm::Optional<unsigned> ArgNo, |
4227 | CGBuilderTy &Builder, |
4228 | const bool UsePointerValue) { |
4229 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4230 | assert(!LexicalBlockStack.empty() && "Region stack mismatch, stack empty!"); |
4231 | if (VD->hasAttr<NoDebugAttr>()) |
4232 | return nullptr; |
4233 | |
4234 | bool Unwritten = |
4235 | VD->isImplicit() || (isa<Decl>(VD->getDeclContext()) && |
4236 | cast<Decl>(VD->getDeclContext())->isImplicit()); |
4237 | llvm::DIFile *Unit = nullptr; |
4238 | if (!Unwritten) |
4239 | Unit = getOrCreateFile(VD->getLocation()); |
4240 | llvm::DIType *Ty; |
4241 | uint64_t XOffset = 0; |
4242 | if (VD->hasAttr<BlocksAttr>()) |
4243 | Ty = EmitTypeForVarWithBlocksAttr(VD, &XOffset).WrappedType; |
4244 | else |
4245 | Ty = getOrCreateType(VD->getType(), Unit); |
4246 | |
4247 | |
4248 | |
4249 | if (!Ty) |
4250 | return nullptr; |
4251 | |
4252 | |
4253 | unsigned Line = 0; |
4254 | unsigned Column = 0; |
4255 | if (!Unwritten) { |
4256 | Line = getLineNumber(VD->getLocation()); |
4257 | Column = getColumnNumber(VD->getLocation()); |
4258 | } |
4259 | SmallVector<int64_t, 13> Expr; |
4260 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
4261 | if (VD->isImplicit()) |
4262 | Flags |= llvm::DINode::FlagArtificial; |
4263 | |
4264 | auto Align = getDeclAlignIfRequired(VD, CGM.getContext()); |
4265 | |
4266 | unsigned AddressSpace = CGM.getContext().getTargetAddressSpace(VD->getType()); |
4267 | AppendAddressSpaceXDeref(AddressSpace, Expr); |
4268 | |
4269 | |
4270 | |
4271 | if (const auto *IPD = dyn_cast<ImplicitParamDecl>(VD)) { |
4272 | if (IPD->getParameterKind() == ImplicitParamDecl::CXXThis || |
4273 | IPD->getParameterKind() == ImplicitParamDecl::ObjCSelf) |
4274 | Flags |= llvm::DINode::FlagObjectPointer; |
4275 | } |
4276 | |
4277 | |
4278 | |
4279 | |
4280 | |
4281 | auto *Scope = cast<llvm::DIScope>(LexicalBlockStack.back()); |
4282 | StringRef Name = VD->getName(); |
4283 | if (!Name.empty()) { |
4284 | |
4285 | |
4286 | if (VD->isEscapingByref()) { |
4287 | |
4288 | CharUnits offset = CharUnits::fromQuantity(32); |
4289 | Expr.push_back(llvm::dwarf::DW_OP_plus_uconst); |
4290 | |
4291 | offset = CGM.getContext().toCharUnitsFromBits( |
4292 | CGM.getTarget().getPointerWidth(0)); |
4293 | Expr.push_back(offset.getQuantity()); |
4294 | Expr.push_back(llvm::dwarf::DW_OP_deref); |
4295 | Expr.push_back(llvm::dwarf::DW_OP_plus_uconst); |
4296 | |
4297 | offset = CGM.getContext().toCharUnitsFromBits(XOffset); |
4298 | Expr.push_back(offset.getQuantity()); |
4299 | } |
4300 | } else if (const auto *RT = dyn_cast<RecordType>(VD->getType())) { |
4301 | |
4302 | |
4303 | const RecordDecl *RD = RT->getDecl(); |
4304 | if (RD->isUnion() && RD->isAnonymousStructOrUnion()) { |
4305 | |
4306 | |
4307 | |
4308 | |
4309 | |
4310 | |
4311 | |
4312 | for (const auto *Field : RD->fields()) { |
4313 | llvm::DIType *FieldTy = getOrCreateType(Field->getType(), Unit); |
4314 | StringRef FieldName = Field->getName(); |
4315 | |
4316 | |
4317 | if (FieldName.empty() && !isa<RecordType>(Field->getType())) |
4318 | continue; |
4319 | |
4320 | |
4321 | auto FieldAlign = getDeclAlignIfRequired(Field, CGM.getContext()); |
4322 | auto *D = DBuilder.createAutoVariable( |
4323 | Scope, FieldName, Unit, Line, FieldTy, CGM.getLangOpts().Optimize, |
4324 | Flags | llvm::DINode::FlagArtificial, FieldAlign); |
4325 | |
4326 | |
4327 | DBuilder.insertDeclare(Storage, D, DBuilder.createExpression(Expr), |
4328 | llvm::DILocation::get(CGM.getLLVMContext(), Line, |
4329 | Column, Scope, |
4330 | CurInlinedAt), |
4331 | Builder.GetInsertBlock()); |
4332 | } |
4333 | } |
4334 | } |
4335 | |
4336 | |
4337 | |
4338 | |
4339 | if (UsePointerValue) { |
4340 | assert(std::find(Expr.begin(), Expr.end(), llvm::dwarf::DW_OP_deref) == |
4341 | Expr.end() && |
4342 | "Debug info already contains DW_OP_deref."); |
4343 | Expr.push_back(llvm::dwarf::DW_OP_deref); |
4344 | } |
4345 | |
4346 | |
4347 | llvm::DILocalVariable *D = nullptr; |
4348 | if (ArgNo) { |
4349 | D = DBuilder.createParameterVariable(Scope, Name, *ArgNo, Unit, Line, Ty, |
4350 | CGM.getLangOpts().Optimize, Flags); |
4351 | } else { |
4352 | |
4353 | |
4354 | |
4355 | |
4356 | |
4357 | |
4358 | |
4359 | auto RemapCoroArgToLocalVar = [&]() -> llvm::DILocalVariable * { |
4360 | |
4361 | |
4362 | if (!isa<llvm::DISubprogram>(Scope) || !Scope->isDistinct()) |
4363 | return nullptr; |
4364 | |
4365 | auto Iter = llvm::find_if(CoroutineParameterMappings, [&](auto &Pair) { |
4366 | Stmt *StmtPtr = const_cast<Stmt *>(Pair.second); |
4367 | if (DeclStmt *DeclStmtPtr = dyn_cast<DeclStmt>(StmtPtr)) { |
4368 | DeclGroupRef DeclGroup = DeclStmtPtr->getDeclGroup(); |
4369 | Decl *Decl = DeclGroup.getSingleDecl(); |
4370 | if (VD == dyn_cast_or_null<VarDecl>(Decl)) |
4371 | return true; |
4372 | } |
4373 | return false; |
4374 | }); |
4375 | |
4376 | if (Iter != CoroutineParameterMappings.end()) { |
4377 | ParmVarDecl *PD = const_cast<ParmVarDecl *>(Iter->first); |
4378 | auto Iter2 = llvm::find_if(ParamDbgMappings, [&](auto &DbgPair) { |
4379 | return DbgPair.first == PD && DbgPair.second->getScope() == Scope; |
4380 | }); |
4381 | if (Iter2 != ParamDbgMappings.end()) |
4382 | return const_cast<llvm::DILocalVariable *>(Iter2->second); |
4383 | } |
4384 | return nullptr; |
4385 | }; |
4386 | |
4387 | |
4388 | D = RemapCoroArgToLocalVar(); |
4389 | |
4390 | if (!D) |
4391 | D = DBuilder.createAutoVariable(Scope, Name, Unit, Line, Ty, |
4392 | CGM.getLangOpts().Optimize, Flags, Align); |
4393 | } |
4394 | |
4395 | DBuilder.insertDeclare(Storage, D, DBuilder.createExpression(Expr), |
4396 | llvm::DILocation::get(CGM.getLLVMContext(), Line, |
4397 | Column, Scope, CurInlinedAt), |
4398 | Builder.GetInsertBlock()); |
4399 | |
4400 | return D; |
4401 | } |
4402 | |
4403 | llvm::DILocalVariable * |
4404 | CGDebugInfo::EmitDeclareOfAutoVariable(const VarDecl *VD, llvm::Value *Storage, |
4405 | CGBuilderTy &Builder, |
4406 | const bool UsePointerValue) { |
4407 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4408 | return EmitDeclare(VD, Storage, llvm::None, Builder, UsePointerValue); |
4409 | } |
4410 | |
4411 | void CGDebugInfo::EmitLabel(const LabelDecl *D, CGBuilderTy &Builder) { |
4412 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4413 | assert(!LexicalBlockStack.empty() && "Region stack mismatch, stack empty!"); |
4414 | |
4415 | if (D->hasAttr<NoDebugAttr>()) |
4416 | return; |
4417 | |
4418 | auto *Scope = cast<llvm::DIScope>(LexicalBlockStack.back()); |
4419 | llvm::DIFile *Unit = getOrCreateFile(D->getLocation()); |
4420 | |
4421 | |
4422 | unsigned Line = getLineNumber(D->getLocation()); |
4423 | unsigned Column = getColumnNumber(D->getLocation()); |
4424 | |
4425 | StringRef Name = D->getName(); |
4426 | |
4427 | |
4428 | auto *L = |
4429 | DBuilder.createLabel(Scope, Name, Unit, Line, CGM.getLangOpts().Optimize); |
4430 | |
4431 | |
4432 | DBuilder.insertLabel(L, |
4433 | llvm::DILocation::get(CGM.getLLVMContext(), Line, Column, |
4434 | Scope, CurInlinedAt), |
4435 | Builder.GetInsertBlock()); |
4436 | } |
4437 | |
4438 | llvm::DIType *CGDebugInfo::CreateSelfType(const QualType &QualTy, |
4439 | llvm::DIType *Ty) { |
4440 | llvm::DIType *CachedTy = getTypeOrNull(QualTy); |
4441 | if (CachedTy) |
4442 | Ty = CachedTy; |
4443 | return DBuilder.createObjectPointerType(Ty); |
4444 | } |
4445 | |
4446 | void CGDebugInfo::EmitDeclareOfBlockDeclRefVariable( |
4447 | const VarDecl *VD, llvm::Value *Storage, CGBuilderTy &Builder, |
4448 | const CGBlockInfo &blockInfo, llvm::Instruction *InsertPoint) { |
4449 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4450 | assert(!LexicalBlockStack.empty() && "Region stack mismatch, stack empty!"); |
4451 | |
4452 | if (Builder.GetInsertBlock() == nullptr) |
4453 | return; |
4454 | if (VD->hasAttr<NoDebugAttr>()) |
4455 | return; |
4456 | |
4457 | bool isByRef = VD->hasAttr<BlocksAttr>(); |
4458 | |
4459 | uint64_t XOffset = 0; |
4460 | llvm::DIFile *Unit = getOrCreateFile(VD->getLocation()); |
4461 | llvm::DIType *Ty; |
4462 | if (isByRef) |
4463 | Ty = EmitTypeForVarWithBlocksAttr(VD, &XOffset).WrappedType; |
4464 | else |
4465 | Ty = getOrCreateType(VD->getType(), Unit); |
4466 | |
4467 | |
4468 | |
4469 | if (const auto *IPD = dyn_cast<ImplicitParamDecl>(VD)) |
4470 | if (IPD->getParameterKind() == ImplicitParamDecl::ObjCSelf) |
4471 | Ty = CreateSelfType(VD->getType(), Ty); |
4472 | |
4473 | |
4474 | const unsigned Line = |
4475 | getLineNumber(VD->getLocation().isValid() ? VD->getLocation() : CurLoc); |
4476 | unsigned Column = getColumnNumber(VD->getLocation()); |
4477 | |
4478 | const llvm::DataLayout &target = CGM.getDataLayout(); |
4479 | |
4480 | CharUnits offset = CharUnits::fromQuantity( |
4481 | target.getStructLayout(blockInfo.StructureType) |
4482 | ->getElementOffset(blockInfo.getCapture(VD).getIndex())); |
4483 | |
4484 | SmallVector<int64_t, 9> addr; |
4485 | addr.push_back(llvm::dwarf::DW_OP_deref); |
4486 | addr.push_back(llvm::dwarf::DW_OP_plus_uconst); |
4487 | addr.push_back(offset.getQuantity()); |
4488 | if (isByRef) { |
4489 | addr.push_back(llvm::dwarf::DW_OP_deref); |
4490 | addr.push_back(llvm::dwarf::DW_OP_plus_uconst); |
4491 | |
4492 | offset = |
4493 | CGM.getContext().toCharUnitsFromBits(target.getPointerSizeInBits(0)); |
4494 | addr.push_back(offset.getQuantity()); |
4495 | addr.push_back(llvm::dwarf::DW_OP_deref); |
4496 | addr.push_back(llvm::dwarf::DW_OP_plus_uconst); |
4497 | |
4498 | offset = CGM.getContext().toCharUnitsFromBits(XOffset); |
4499 | addr.push_back(offset.getQuantity()); |
4500 | } |
4501 | |
4502 | |
4503 | auto Align = getDeclAlignIfRequired(VD, CGM.getContext()); |
4504 | auto *D = DBuilder.createAutoVariable( |
4505 | cast<llvm::DILocalScope>(LexicalBlockStack.back()), VD->getName(), Unit, |
4506 | Line, Ty, false, llvm::DINode::FlagZero, Align); |
4507 | |
4508 | |
4509 | auto DL = llvm::DILocation::get(CGM.getLLVMContext(), Line, Column, |
4510 | LexicalBlockStack.back(), CurInlinedAt); |
4511 | auto *Expr = DBuilder.createExpression(addr); |
4512 | if (InsertPoint) |
4513 | DBuilder.insertDeclare(Storage, D, Expr, DL, InsertPoint); |
4514 | else |
4515 | DBuilder.insertDeclare(Storage, D, Expr, DL, Builder.GetInsertBlock()); |
4516 | } |
4517 | |
4518 | llvm::DILocalVariable * |
4519 | CGDebugInfo::EmitDeclareOfArgVariable(const VarDecl *VD, llvm::Value *AI, |
4520 | unsigned ArgNo, CGBuilderTy &Builder) { |
4521 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4522 | return EmitDeclare(VD, AI, ArgNo, Builder); |
4523 | } |
4524 | |
4525 | namespace { |
4526 | struct BlockLayoutChunk { |
4527 | uint64_t OffsetInBits; |
4528 | const BlockDecl::Capture *Capture; |
4529 | }; |
4530 | bool operator<(const BlockLayoutChunk &l, const BlockLayoutChunk &r) { |
4531 | return l.OffsetInBits < r.OffsetInBits; |
4532 | } |
4533 | } |
4534 | |
4535 | void CGDebugInfo::collectDefaultFieldsForBlockLiteralDeclare( |
4536 | const CGBlockInfo &Block, const ASTContext &Context, SourceLocation Loc, |
4537 | const llvm::StructLayout &BlockLayout, llvm::DIFile *Unit, |
4538 | SmallVectorImpl<llvm::Metadata *> &Fields) { |
4539 | |
4540 | |
4541 | |
4542 | if (CGM.getLangOpts().OpenCL) { |
4543 | Fields.push_back(createFieldType("__size", Context.IntTy, Loc, AS_public, |
4544 | BlockLayout.getElementOffsetInBits(0), |
4545 | Unit, Unit)); |
4546 | Fields.push_back(createFieldType("__align", Context.IntTy, Loc, AS_public, |
4547 | BlockLayout.getElementOffsetInBits(1), |
4548 | Unit, Unit)); |
4549 | } else { |
4550 | Fields.push_back(createFieldType("__isa", Context.VoidPtrTy, Loc, AS_public, |
4551 | BlockLayout.getElementOffsetInBits(0), |
4552 | Unit, Unit)); |
4553 | Fields.push_back(createFieldType("__flags", Context.IntTy, Loc, AS_public, |
4554 | BlockLayout.getElementOffsetInBits(1), |
4555 | Unit, Unit)); |
4556 | Fields.push_back( |
4557 | createFieldType("__reserved", Context.IntTy, Loc, AS_public, |
4558 | BlockLayout.getElementOffsetInBits(2), Unit, Unit)); |
4559 | auto *FnTy = Block.getBlockExpr()->getFunctionType(); |
4560 | auto FnPtrType = CGM.getContext().getPointerType(FnTy->desugar()); |
4561 | Fields.push_back(createFieldType("__FuncPtr", FnPtrType, Loc, AS_public, |
4562 | BlockLayout.getElementOffsetInBits(3), |
4563 | Unit, Unit)); |
4564 | Fields.push_back(createFieldType( |
4565 | "__descriptor", |
4566 | Context.getPointerType(Block.NeedsCopyDispose |
4567 | ? Context.getBlockDescriptorExtendedType() |
4568 | : Context.getBlockDescriptorType()), |
4569 | Loc, AS_public, BlockLayout.getElementOffsetInBits(4), Unit, Unit)); |
4570 | } |
4571 | } |
4572 | |
4573 | void CGDebugInfo::EmitDeclareOfBlockLiteralArgVariable(const CGBlockInfo &block, |
4574 | StringRef Name, |
4575 | unsigned ArgNo, |
4576 | llvm::AllocaInst *Alloca, |
4577 | CGBuilderTy &Builder) { |
4578 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4579 | ASTContext &C = CGM.getContext(); |
4580 | const BlockDecl *blockDecl = block.getBlockDecl(); |
4581 | |
4582 | |
4583 | SourceLocation loc = blockDecl->getCaretLocation(); |
4584 | llvm::DIFile *tunit = getOrCreateFile(loc); |
4585 | unsigned line = getLineNumber(loc); |
4586 | unsigned column = getColumnNumber(loc); |
4587 | |
4588 | |
4589 | getDeclContextDescriptor(blockDecl); |
4590 | |
4591 | const llvm::StructLayout *blockLayout = |
4592 | CGM.getDataLayout().getStructLayout(block.StructureType); |
4593 | |
4594 | SmallVector<llvm::Metadata *, 16> fields; |
4595 | collectDefaultFieldsForBlockLiteralDeclare(block, C, loc, *blockLayout, tunit, |
4596 | fields); |
4597 | |
4598 | |
4599 | |
4600 | SmallVector<BlockLayoutChunk, 8> chunks; |
4601 | |
4602 | |
4603 | if (blockDecl->capturesCXXThis()) { |
4604 | BlockLayoutChunk chunk; |
4605 | chunk.OffsetInBits = |
4606 | blockLayout->getElementOffsetInBits(block.CXXThisIndex); |
4607 | chunk.Capture = nullptr; |
4608 | chunks.push_back(chunk); |
4609 | } |
4610 | |
4611 | |
4612 | for (const auto &capture : blockDecl->captures()) { |
4613 | const VarDecl *variable = capture.getVariable(); |
4614 | const CGBlockInfo::Capture &captureInfo = block.getCapture(variable); |
4615 | |
4616 | |
4617 | if (captureInfo.isConstant()) |
4618 | continue; |
4619 | |
4620 | BlockLayoutChunk chunk; |
4621 | chunk.OffsetInBits = |
4622 | blockLayout->getElementOffsetInBits(captureInfo.getIndex()); |
4623 | chunk.Capture = &capture; |
4624 | chunks.push_back(chunk); |
4625 | } |
4626 | |
4627 | |
4628 | llvm::array_pod_sort(chunks.begin(), chunks.end()); |
4629 | |
4630 | for (const BlockLayoutChunk &Chunk : chunks) { |
4631 | uint64_t offsetInBits = Chunk.OffsetInBits; |
4632 | const BlockDecl::Capture *capture = Chunk.Capture; |
4633 | |
4634 | |
4635 | if (!capture) { |
4636 | QualType type; |
4637 | if (auto *Method = |
4638 | cast_or_null<CXXMethodDecl>(blockDecl->getNonClosureContext())) |
4639 | type = Method->getThisType(); |
4640 | else if (auto *RDecl = dyn_cast<CXXRecordDecl>(blockDecl->getParent())) |
4641 | type = QualType(RDecl->getTypeForDecl(), 0); |
4642 | else |
4643 | llvm_unreachable("unexpected block declcontext"); |
4644 | |
4645 | fields.push_back(createFieldType("this", type, loc, AS_public, |
4646 | offsetInBits, tunit, tunit)); |
4647 | continue; |
4648 | } |
4649 | |
4650 | const VarDecl *variable = capture->getVariable(); |
4651 | StringRef name = variable->getName(); |
4652 | |
4653 | llvm::DIType *fieldType; |
4654 | if (capture->isByRef()) { |
4655 | TypeInfo PtrInfo = C.getTypeInfo(C.VoidPtrTy); |
4656 | auto Align = PtrInfo.AlignIsRequired ? PtrInfo.Align : 0; |
4657 | |
4658 | uint64_t xoffset; |
4659 | fieldType = |
4660 | EmitTypeForVarWithBlocksAttr(variable, &xoffset).BlockByRefWrapper; |
4661 | fieldType = DBuilder.createPointerType(fieldType, PtrInfo.Width); |
4662 | fieldType = DBuilder.createMemberType(tunit, name, tunit, line, |
4663 | PtrInfo.Width, Align, offsetInBits, |
4664 | llvm::DINode::FlagZero, fieldType); |
4665 | } else { |
4666 | auto Align = getDeclAlignIfRequired(variable, CGM.getContext()); |
4667 | fieldType = createFieldType(name, variable->getType(), loc, AS_public, |
4668 | offsetInBits, Align, tunit, tunit); |
4669 | } |
4670 | fields.push_back(fieldType); |
4671 | } |
4672 | |
4673 | SmallString<36> typeName; |
4674 | llvm::raw_svector_ostream(typeName) |
4675 | << "__block_literal_" << CGM.getUniqueBlockCount(); |
4676 | |
4677 | llvm::DINodeArray fieldsArray = DBuilder.getOrCreateArray(fields); |
4678 | |
4679 | llvm::DIType *type = |
4680 | DBuilder.createStructType(tunit, typeName.str(), tunit, line, |
4681 | CGM.getContext().toBits(block.BlockSize), 0, |
4682 | llvm::DINode::FlagZero, nullptr, fieldsArray); |
4683 | type = DBuilder.createPointerType(type, CGM.PointerWidthInBits); |
4684 | |
4685 | |
4686 | llvm::DINode::DIFlags flags = llvm::DINode::FlagArtificial; |
4687 | auto *scope = cast<llvm::DILocalScope>(LexicalBlockStack.back()); |
4688 | |
4689 | |
4690 | auto *debugVar = DBuilder.createParameterVariable( |
4691 | scope, Name, ArgNo, tunit, line, type, CGM.getLangOpts().Optimize, flags); |
4692 | |
4693 | |
4694 | DBuilder.insertDeclare(Alloca, debugVar, DBuilder.createExpression(), |
4695 | llvm::DILocation::get(CGM.getLLVMContext(), line, |
4696 | column, scope, CurInlinedAt), |
4697 | Builder.GetInsertBlock()); |
4698 | } |
4699 | |
4700 | llvm::DIDerivedType * |
4701 | CGDebugInfo::getOrCreateStaticDataMemberDeclarationOrNull(const VarDecl *D) { |
4702 | if (!D || !D->isStaticDataMember()) |
4703 | return nullptr; |
4704 | |
4705 | auto MI = StaticDataMemberCache.find(D->getCanonicalDecl()); |
4706 | if (MI != StaticDataMemberCache.end()) { |
4707 | assert(MI->second && "Static data member declaration should still exist"); |
4708 | return MI->second; |
4709 | } |
4710 | |
4711 | |
4712 | |
4713 | auto DC = D->getDeclContext(); |
4714 | auto *Ctxt = cast<llvm::DICompositeType>(getDeclContextDescriptor(D)); |
4715 | return CreateRecordStaticField(D, Ctxt, cast<RecordDecl>(DC)); |
4716 | } |
4717 | |
4718 | llvm::DIGlobalVariableExpression *CGDebugInfo::CollectAnonRecordDecls( |
4719 | const RecordDecl *RD, llvm::DIFile *Unit, unsigned LineNo, |
4720 | StringRef LinkageName, llvm::GlobalVariable *Var, llvm::DIScope *DContext) { |
4721 | llvm::DIGlobalVariableExpression *GVE = nullptr; |
4722 | |
4723 | for (const auto *Field : RD->fields()) { |
4724 | llvm::DIType *FieldTy = getOrCreateType(Field->getType(), Unit); |
4725 | StringRef FieldName = Field->getName(); |
4726 | |
4727 | |
4728 | if (FieldName.empty()) { |
4729 | if (const auto *RT = dyn_cast<RecordType>(Field->getType())) |
4730 | GVE = CollectAnonRecordDecls(RT->getDecl(), Unit, LineNo, LinkageName, |
4731 | Var, DContext); |
4732 | continue; |
4733 | } |
4734 | |
4735 | GVE = DBuilder.createGlobalVariableExpression( |
4736 | DContext, FieldName, LinkageName, Unit, LineNo, FieldTy, |
4737 | Var->hasLocalLinkage()); |
4738 | Var->addDebugInfo(GVE); |
4739 | } |
4740 | return GVE; |
4741 | } |
4742 | |
4743 | std::string CGDebugInfo::GetName(const Decl *D, bool Qualified) const { |
4744 | std::string Name; |
4745 | llvm::raw_string_ostream OS(Name); |
4746 | if (const NamedDecl *ND = dyn_cast<NamedDecl>(D)) { |
4747 | PrintingPolicy PP = getPrintingPolicy(); |
4748 | PP.PrintCanonicalTypes = true; |
4749 | PP.SuppressInlineNamespace = false; |
4750 | ND->getNameForDiagnostic(OS, PP, Qualified); |
4751 | } |
4752 | return Name; |
4753 | } |
4754 | |
4755 | void CGDebugInfo::EmitGlobalVariable(llvm::GlobalVariable *Var, |
4756 | const VarDecl *D) { |
4757 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4758 | if (D->hasAttr<NoDebugAttr>()) |
4759 | return; |
4760 | |
4761 | llvm::TimeTraceScope TimeScope("DebugGlobalVariable", [&]() { |
4762 | return GetName(D, true); |
4763 | }); |
4764 | |
4765 | |
4766 | |
4767 | auto Cached = DeclCache.find(D->getCanonicalDecl()); |
4768 | if (Cached != DeclCache.end()) |
4769 | return Var->addDebugInfo( |
4770 | cast<llvm::DIGlobalVariableExpression>(Cached->second)); |
4771 | |
4772 | |
4773 | llvm::DIFile *Unit = nullptr; |
4774 | llvm::DIScope *DContext = nullptr; |
4775 | unsigned LineNo; |
4776 | StringRef DeclName, LinkageName; |
4777 | QualType T; |
4778 | llvm::MDTuple *TemplateParameters = nullptr; |
4779 | collectVarDeclProps(D, Unit, LineNo, T, DeclName, LinkageName, |
4780 | TemplateParameters, DContext); |
4781 | |
4782 | |
4783 | |
4784 | llvm::DIGlobalVariableExpression *GVE = nullptr; |
4785 | |
4786 | |
4787 | |
4788 | |
4789 | if (T->isUnionType() && DeclName.empty()) { |
4790 | const RecordDecl *RD = T->castAs<RecordType>()->getDecl(); |
4791 | assert(RD->isAnonymousStructOrUnion() && |
4792 | "unnamed non-anonymous struct or union?"); |
4793 | GVE = CollectAnonRecordDecls(RD, Unit, LineNo, LinkageName, Var, DContext); |
4794 | } else { |
4795 | auto Align = getDeclAlignIfRequired(D, CGM.getContext()); |
4796 | |
4797 | SmallVector<int64_t, 4> Expr; |
4798 | unsigned AddressSpace = |
4799 | CGM.getContext().getTargetAddressSpace(D->getType()); |
4800 | if (CGM.getLangOpts().CUDA && CGM.getLangOpts().CUDAIsDevice) { |
4801 | if (D->hasAttr<CUDASharedAttr>()) |
4802 | AddressSpace = |
4803 | CGM.getContext().getTargetAddressSpace(LangAS::cuda_shared); |
4804 | else if (D->hasAttr<CUDAConstantAttr>()) |
4805 | AddressSpace = |
4806 | CGM.getContext().getTargetAddressSpace(LangAS::cuda_constant); |
4807 | } |
4808 | AppendAddressSpaceXDeref(AddressSpace, Expr); |
4809 | |
4810 | GVE = DBuilder.createGlobalVariableExpression( |
4811 | DContext, DeclName, LinkageName, Unit, LineNo, getOrCreateType(T, Unit), |
4812 | Var->hasLocalLinkage(), true, |
4813 | Expr.empty() ? nullptr : DBuilder.createExpression(Expr), |
4814 | getOrCreateStaticDataMemberDeclarationOrNull(D), TemplateParameters, |
4815 | Align); |
4816 | Var->addDebugInfo(GVE); |
4817 | } |
4818 | DeclCache[D->getCanonicalDecl()].reset(GVE); |
4819 | } |
4820 | |
4821 | void CGDebugInfo::EmitGlobalVariable(const ValueDecl *VD, const APValue &Init) { |
4822 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4823 | if (VD->hasAttr<NoDebugAttr>()) |
4824 | return; |
4825 | llvm::TimeTraceScope TimeScope("DebugConstGlobalVariable", [&]() { |
4826 | return GetName(VD, true); |
4827 | }); |
4828 | |
4829 | auto Align = getDeclAlignIfRequired(VD, CGM.getContext()); |
4830 | |
4831 | llvm::DIFile *Unit = getOrCreateFile(VD->getLocation()); |
4832 | StringRef Name = VD->getName(); |
4833 | llvm::DIType *Ty = getOrCreateType(VD->getType(), Unit); |
4834 | |
4835 | if (const auto *ECD = dyn_cast<EnumConstantDecl>(VD)) { |
4836 | const auto *ED = cast<EnumDecl>(ECD->getDeclContext()); |
4837 | assert(isa<EnumType>(ED->getTypeForDecl()) && "Enum without EnumType?"); |
4838 | |
4839 | if (CGM.getCodeGenOpts().EmitCodeView) { |
4840 | |
4841 | |
4842 | |
4843 | |
4844 | if (isa<RecordDecl>(ED->getDeclContext())) |
4845 | return; |
4846 | } else { |
4847 | |
4848 | |
4849 | |
4850 | llvm::DIType *EDTy = |
4851 | getOrCreateType(QualType(ED->getTypeForDecl(), 0), Unit); |
4852 | assert (EDTy->getTag() == llvm::dwarf::DW_TAG_enumeration_type); |
4853 | (void)EDTy; |
4854 | return; |
4855 | } |
4856 | } |
4857 | |
4858 | |
4859 | if (isa<FunctionDecl>(VD->getDeclContext())) |
4860 | return; |
4861 | |
4862 | VD = cast<ValueDecl>(VD->getCanonicalDecl()); |
4863 | auto *VarD = dyn_cast<VarDecl>(VD); |
4864 | if (VarD && VarD->isStaticDataMember()) { |
4865 | auto *RD = cast<RecordDecl>(VarD->getDeclContext()); |
4866 | getDeclContextDescriptor(VarD); |
4867 | |
4868 | |
4869 | |
4870 | |
4871 | RetainedTypes.push_back( |
4872 | CGM.getContext().getRecordType(RD).getAsOpaquePtr()); |
4873 | |
4874 | return; |
4875 | } |
4876 | llvm::DIScope *DContext = getDeclContextDescriptor(VD); |
4877 | |
4878 | auto &GV = DeclCache[VD]; |
4879 | if (GV) |
4880 | return; |
4881 | llvm::DIExpression *InitExpr = nullptr; |
4882 | if (CGM.getContext().getTypeSize(VD->getType()) <= 64) { |
4883 | |
4884 | if (Init.isInt()) |
4885 | InitExpr = |
4886 | DBuilder.createConstantValueExpression(Init.getInt().getExtValue()); |
4887 | else if (Init.isFloat()) |
4888 | InitExpr = DBuilder.createConstantValueExpression( |
4889 | Init.getFloat().bitcastToAPInt().getZExtValue()); |
4890 | } |
4891 | |
4892 | llvm::MDTuple *TemplateParameters = nullptr; |
4893 | |
4894 | if (isa<VarTemplateSpecializationDecl>(VD)) |
4895 | if (VarD) { |
4896 | llvm::DINodeArray parameterNodes = CollectVarTemplateParams(VarD, &*Unit); |
4897 | TemplateParameters = parameterNodes.get(); |
4898 | } |
4899 | |
4900 | GV.reset(DBuilder.createGlobalVariableExpression( |
4901 | DContext, Name, StringRef(), Unit, getLineNumber(VD->getLocation()), Ty, |
4902 | true, true, InitExpr, getOrCreateStaticDataMemberDeclarationOrNull(VarD), |
4903 | TemplateParameters, Align)); |
4904 | } |
4905 | |
4906 | void CGDebugInfo::EmitExternalVariable(llvm::GlobalVariable *Var, |
4907 | const VarDecl *D) { |
4908 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4909 | if (D->hasAttr<NoDebugAttr>()) |
4910 | return; |
4911 | |
4912 | auto Align = getDeclAlignIfRequired(D, CGM.getContext()); |
4913 | llvm::DIFile *Unit = getOrCreateFile(D->getLocation()); |
4914 | StringRef Name = D->getName(); |
4915 | llvm::DIType *Ty = getOrCreateType(D->getType(), Unit); |
4916 | |
4917 | llvm::DIScope *DContext = getDeclContextDescriptor(D); |
4918 | llvm::DIGlobalVariableExpression *GVE = |
4919 | DBuilder.createGlobalVariableExpression( |
4920 | DContext, Name, StringRef(), Unit, getLineNumber(D->getLocation()), |
4921 | Ty, false, false, nullptr, nullptr, nullptr, Align); |
4922 | Var->addDebugInfo(GVE); |
4923 | } |
4924 | |
4925 | llvm::DIScope *CGDebugInfo::getCurrentContextDescriptor(const Decl *D) { |
4926 | if (!LexicalBlockStack.empty()) |
4927 | return LexicalBlockStack.back(); |
4928 | llvm::DIScope *Mod = getParentModuleOrNull(D); |
4929 | return getContextDescriptor(D, Mod ? Mod : TheCU); |
4930 | } |
4931 | |
4932 | void CGDebugInfo::EmitUsingDirective(const UsingDirectiveDecl &UD) { |
4933 | if (!CGM.getCodeGenOpts().hasReducedDebugInfo()) |
4934 | return; |
4935 | const NamespaceDecl *NSDecl = UD.getNominatedNamespace(); |
4936 | if (!NSDecl->isAnonymousNamespace() || |
4937 | CGM.getCodeGenOpts().DebugExplicitImport) { |
4938 | auto Loc = UD.getLocation(); |
4939 | if (!Loc.isValid()) |
4940 | Loc = CurLoc; |
4941 | DBuilder.createImportedModule( |
4942 | getCurrentContextDescriptor(cast<Decl>(UD.getDeclContext())), |
4943 | getOrCreateNamespace(NSDecl), getOrCreateFile(Loc), getLineNumber(Loc)); |
4944 | } |
4945 | } |
4946 | |
4947 | void CGDebugInfo::EmitUsingShadowDecl(const UsingShadowDecl &USD) { |
4948 | if (llvm::DINode *Target = |
4949 | getDeclarationOrDefinition(USD.getUnderlyingDecl())) { |
4950 | auto Loc = USD.getLocation(); |
4951 | DBuilder.createImportedDeclaration( |
4952 | getCurrentContextDescriptor(cast<Decl>(USD.getDeclContext())), Target, |
4953 | getOrCreateFile(Loc), getLineNumber(Loc)); |
4954 | } |
4955 | } |
4956 | |
4957 | void CGDebugInfo::EmitUsingDecl(const UsingDecl &UD) { |
4958 | if (!CGM.getCodeGenOpts().hasReducedDebugInfo()) |
4959 | return; |
4960 | assert(UD.shadow_size() && |
4961 | "We shouldn't be codegening an invalid UsingDecl containing no decls"); |
4962 | |
4963 | for (const auto *USD : UD.shadows()) { |
4964 | |
4965 | |
4966 | |
4967 | |
4968 | if (const auto *FD = dyn_cast<FunctionDecl>(USD->getUnderlyingDecl())) |
4969 | if (const auto *AT = FD->getType() |
4970 | ->castAs<FunctionProtoType>() |
4971 | ->getContainedAutoType()) |
4972 | if (AT->getDeducedType().isNull()) |
4973 | continue; |
4974 | |
4975 | EmitUsingShadowDecl(*USD); |
4976 | |
4977 | |
4978 | break; |
4979 | } |
4980 | } |
4981 | |
4982 | void CGDebugInfo::EmitUsingEnumDecl(const UsingEnumDecl &UD) { |
4983 | if (!CGM.getCodeGenOpts().hasReducedDebugInfo()) |
4984 | return; |
4985 | assert(UD.shadow_size() && |
4986 | "We shouldn't be codegening an invalid UsingEnumDecl" |
4987 | " containing no decls"); |
4988 | |
4989 | for (const auto *USD : UD.shadows()) |
4990 | EmitUsingShadowDecl(*USD); |
4991 | } |
4992 | |
4993 | void CGDebugInfo::EmitImportDecl(const ImportDecl &ID) { |
4994 | if (CGM.getCodeGenOpts().getDebuggerTuning() != llvm::DebuggerKind::LLDB) |
4995 | return; |
4996 | if (Module *M = ID.getImportedModule()) { |
4997 | auto Info = ASTSourceDescriptor(*M); |
4998 | auto Loc = ID.getLocation(); |
4999 | DBuilder.createImportedDeclaration( |
5000 | getCurrentContextDescriptor(cast<Decl>(ID.getDeclContext())), |
5001 | getOrCreateModuleRef(Info, DebugTypeExtRefs), getOrCreateFile(Loc), |
5002 | getLineNumber(Loc)); |
5003 | } |
5004 | } |
5005 | |
5006 | llvm::DIImportedEntity * |
5007 | CGDebugInfo::EmitNamespaceAlias(const NamespaceAliasDecl &NA) { |
5008 | if (!CGM.getCodeGenOpts().hasReducedDebugInfo()) |
5009 | return nullptr; |
5010 | auto &VH = NamespaceAliasCache[&NA]; |
5011 | if (VH) |
5012 | return cast<llvm::DIImportedEntity>(VH); |
5013 | llvm::DIImportedEntity *R; |
5014 | auto Loc = NA.getLocation(); |
5015 | if (const auto *Underlying = |
5016 | dyn_cast<NamespaceAliasDecl>(NA.getAliasedNamespace())) |
5017 | |
5018 | R = DBuilder.createImportedDeclaration( |
5019 | getCurrentContextDescriptor(cast<Decl>(NA.getDeclContext())), |
5020 | EmitNamespaceAlias(*Underlying), getOrCreateFile(Loc), |
5021 | getLineNumber(Loc), NA.getName()); |
5022 | else |
5023 | R = DBuilder.createImportedDeclaration( |
5024 | getCurrentContextDescriptor(cast<Decl>(NA.getDeclContext())), |
5025 | getOrCreateNamespace(cast<NamespaceDecl>(NA.getAliasedNamespace())), |
5026 | getOrCreateFile(Loc), getLineNumber(Loc), NA.getName()); |
5027 | VH.reset(R); |
5028 | return R; |
5029 | } |
5030 | |
5031 | llvm::DINamespace * |
5032 | CGDebugInfo::getOrCreateNamespace(const NamespaceDecl *NSDecl) { |
5033 | |
5034 | |
5035 | |
5036 | auto I = NamespaceCache.find(NSDecl); |
5037 | if (I != NamespaceCache.end()) |
5038 | return cast<llvm::DINamespace>(I->second); |
5039 | |
5040 | llvm::DIScope *Context = getDeclContextDescriptor(NSDecl); |
5041 | |
5042 | llvm::DINamespace *NS = |
5043 | DBuilder.createNameSpace(Context, NSDecl->getName(), NSDecl->isInline()); |
5044 | NamespaceCache[NSDecl].reset(NS); |
5045 | return NS; |
5046 | } |
5047 | |
5048 | void CGDebugInfo::setDwoId(uint64_t Signature) { |
5049 | assert(TheCU && "no main compile unit"); |
5050 | TheCU->setDWOId(Signature); |
5051 | } |
5052 | |
5053 | void CGDebugInfo::finalize() { |
5054 | |
5055 | |
5056 | for (size_t i = 0; i != ObjCInterfaceCache.size(); ++i) { |
5057 | ObjCInterfaceCacheEntry E = ObjCInterfaceCache[i]; |
5058 | llvm::DIType *Ty = E.Type->getDecl()->getDefinition() |
5059 | ? CreateTypeDefinition(E.Type, E.Unit) |
5060 | : E.Decl; |
5061 | DBuilder.replaceTemporary(llvm::TempDIType(E.Decl), Ty); |
5062 | } |
5063 | |
5064 | |
5065 | for (const auto &P : ObjCMethodCache) { |
5066 | if (P.second.empty()) |
5067 | continue; |
5068 | |
5069 | QualType QTy(P.first->getTypeForDecl(), 0); |
5070 | auto It = TypeCache.find(QTy.getAsOpaquePtr()); |
5071 | assert(It != TypeCache.end()); |
5072 | |
5073 | llvm::DICompositeType *InterfaceDecl = |
5074 | cast<llvm::DICompositeType>(It->second); |
5075 | |
5076 | auto CurElts = InterfaceDecl->getElements(); |
5077 | SmallVector<llvm::Metadata *, 16> EltTys(CurElts.begin(), CurElts.end()); |
5078 | |
5079 | |
5080 | for (auto &SubprogramDirect : P.second) |
5081 | if (CGM.getCodeGenOpts().DwarfVersion >= 5 || SubprogramDirect.getInt()) |
5082 | EltTys.push_back(SubprogramDirect.getPointer()); |
5083 | |
5084 | llvm::DINodeArray Elements = DBuilder.getOrCreateArray(EltTys); |
5085 | DBuilder.replaceArrays(InterfaceDecl, Elements); |
5086 | } |
5087 | |
5088 | for (const auto &P : ReplaceMap) { |
5089 | assert(P.second); |
5090 | auto *Ty = cast<llvm::DIType>(P.second); |
5091 | assert(Ty->isForwardDecl()); |
5092 | |
5093 | auto It = TypeCache.find(P.first); |
5094 | assert(It != TypeCache.end()); |
5095 | assert(It->second); |
5096 | |
5097 | DBuilder.replaceTemporary(llvm::TempDIType(Ty), |
5098 | cast<llvm::DIType>(It->second)); |
5099 | } |
5100 | |
5101 | for (const auto &P : FwdDeclReplaceMap) { |
5102 | assert(P.second); |
5103 | llvm::TempMDNode FwdDecl(cast<llvm::MDNode>(P.second)); |
5104 | llvm::Metadata *Repl; |
5105 | |
5106 | auto It = DeclCache.find(P.first); |
5107 | |
5108 | |
5109 | |
5110 | if (It == DeclCache.end()) |
5111 | Repl = P.second; |
5112 | else |
5113 | Repl = It->second; |
5114 | |
5115 | if (auto *GVE = dyn_cast_or_null<llvm::DIGlobalVariableExpression>(Repl)) |
5116 | Repl = GVE->getVariable(); |
5117 | DBuilder.replaceTemporary(std::move(FwdDecl), cast<llvm::MDNode>(Repl)); |
5118 | } |
5119 | |
5120 | |
5121 | |
5122 | for (auto &RT : RetainedTypes) |
5123 | if (auto MD = TypeCache[RT]) |
5124 | DBuilder.retainType(cast<llvm::DIType>(MD)); |
5125 | |
5126 | DBuilder.finalize(); |
5127 | } |
5128 | |
5129 | |
5130 | void CGDebugInfo::EmitExplicitCastType(QualType Ty) { |
5131 | if (CGM.getCodeGenOpts().hasReducedDebugInfo()) |
5132 | if (auto *DieTy = getOrCreateType(Ty, TheCU->getFile())) |
5133 | DBuilder.retainType(DieTy); |
5134 | } |
5135 | |
5136 | void CGDebugInfo::EmitAndRetainType(QualType Ty) { |
5137 | if (CGM.getCodeGenOpts().hasMaybeUnusedDebugInfo()) |
5138 | if (auto *DieTy = getOrCreateType(Ty, TheCU->getFile())) |
5139 | DBuilder.retainType(DieTy); |
5140 | } |
5141 | |
5142 | llvm::DebugLoc CGDebugInfo::SourceLocToDebugLoc(SourceLocation Loc) { |
5143 | if (LexicalBlockStack.empty()) |
5144 | return llvm::DebugLoc(); |
5145 | |
5146 | llvm::MDNode *Scope = LexicalBlockStack.back(); |
5147 | return llvm::DILocation::get(CGM.getLLVMContext(), getLineNumber(Loc), |
5148 | getColumnNumber(Loc), Scope); |
5149 | } |
5150 | |
5151 | llvm::DINode::DIFlags CGDebugInfo::getCallSiteRelatedAttrs() const { |
5152 | |
5153 | |
5154 | if (!CGM.getLangOpts().Optimize || DebugKind == codegenoptions::NoDebugInfo || |
5155 | DebugKind == codegenoptions::LocTrackingOnly) |
5156 | return llvm::DINode::FlagZero; |
5157 | |
5158 | |
5159 | |
5160 | |
5161 | bool SupportsDWARFv4Ext = |
5162 | CGM.getCodeGenOpts().DwarfVersion == 4 && |
5163 | (CGM.getCodeGenOpts().getDebuggerTuning() == llvm::DebuggerKind::LLDB || |
5164 | CGM.getCodeGenOpts().getDebuggerTuning() == llvm::DebuggerKind::GDB); |
5165 | |
5166 | if (!SupportsDWARFv4Ext && CGM.getCodeGenOpts().DwarfVersion < 5) |
5167 | return llvm::DINode::FlagZero; |
5168 | |
5169 | return llvm::DINode::FlagAllCallsDescribed; |
5170 | } |