clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -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 -analyzer-config-compatibility-mode=true -mrelocation-model pic -pic-level 2 -mframe-pointer=none -relaxed-aliasing -fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -ffunction-sections -fdata-sections -fcoverage-compilation-dir=/build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/build-llvm/tools/clang/lib/CodeGen -resource-dir /usr/lib/llvm-14/lib/clang/14.0.0 -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/build-llvm/tools/clang/lib/CodeGen -I /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/clang/lib/CodeGen -I /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/clang/include -I /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/build-llvm/tools/clang/include -I /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/build-llvm/include -I /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/llvm/include -D NDEBUG -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/x86_64-linux-gnu/c++/10 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/backward -internal-isystem /usr/lib/llvm-14/lib/clang/14.0.0/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-maybe-uninitialized -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wno-comment -std=c++14 -fdeprecated-macro -fdebug-compilation-dir=/build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/build-llvm/tools/clang/lib/CodeGen -fdebug-prefix-map=/build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e=. -ferror-limit 19 -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -analyzer-output=html -analyzer-config stable-report-filename=true -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/scan-build-2021-09-04-040900-46481-1 -x c++ /build/llvm-toolchain-snapshot-14~++20210903100615+fd66b44ec19e/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.isAlignRequired() ? 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(), |
1230 | TemplateName::Qualified::None); |
1231 | printTemplateArgumentList(OS, Ty->template_arguments(), getPrintingPolicy()); |
1232 | |
1233 | SourceLocation Loc = AliasDecl->getLocation(); |
1234 | return DBuilder.createTypedef(Src, OS.str(), getOrCreateFile(Loc), |
1235 | getLineNumber(Loc), |
1236 | getDeclContextDescriptor(AliasDecl)); |
1237 | } |
1238 | |
1239 | llvm::DIType *CGDebugInfo::CreateType(const TypedefType *Ty, |
1240 | llvm::DIFile *Unit) { |
1241 | llvm::DIType *Underlying = |
1242 | getOrCreateType(Ty->getDecl()->getUnderlyingType(), Unit); |
1243 | |
1244 | if (Ty->getDecl()->hasAttr<NoDebugAttr>()) |
1245 | return Underlying; |
1246 | |
1247 | |
1248 | |
1249 | SourceLocation Loc = Ty->getDecl()->getLocation(); |
1250 | |
1251 | uint32_t Align = getDeclAlignIfRequired(Ty->getDecl(), CGM.getContext()); |
1252 | |
1253 | return DBuilder.createTypedef(Underlying, Ty->getDecl()->getName(), |
1254 | getOrCreateFile(Loc), getLineNumber(Loc), |
1255 | getDeclContextDescriptor(Ty->getDecl()), Align); |
1256 | } |
1257 | |
1258 | static unsigned getDwarfCC(CallingConv CC) { |
1259 | switch (CC) { |
1260 | case CC_C: |
1261 | |
1262 | return 0; |
1263 | |
1264 | case CC_X86StdCall: |
1265 | return llvm::dwarf::DW_CC_BORLAND_stdcall; |
1266 | case CC_X86FastCall: |
1267 | return llvm::dwarf::DW_CC_BORLAND_msfastcall; |
1268 | case CC_X86ThisCall: |
1269 | return llvm::dwarf::DW_CC_BORLAND_thiscall; |
1270 | case CC_X86VectorCall: |
1271 | return llvm::dwarf::DW_CC_LLVM_vectorcall; |
1272 | case CC_X86Pascal: |
1273 | return llvm::dwarf::DW_CC_BORLAND_pascal; |
1274 | case CC_Win64: |
1275 | return llvm::dwarf::DW_CC_LLVM_Win64; |
1276 | case CC_X86_64SysV: |
1277 | return llvm::dwarf::DW_CC_LLVM_X86_64SysV; |
1278 | case CC_AAPCS: |
1279 | case CC_AArch64VectorCall: |
1280 | return llvm::dwarf::DW_CC_LLVM_AAPCS; |
1281 | case CC_AAPCS_VFP: |
1282 | return llvm::dwarf::DW_CC_LLVM_AAPCS_VFP; |
1283 | case CC_IntelOclBicc: |
1284 | return llvm::dwarf::DW_CC_LLVM_IntelOclBicc; |
1285 | case CC_SpirFunction: |
1286 | return llvm::dwarf::DW_CC_LLVM_SpirFunction; |
1287 | case CC_OpenCLKernel: |
1288 | return llvm::dwarf::DW_CC_LLVM_OpenCLKernel; |
1289 | case CC_Swift: |
1290 | return llvm::dwarf::DW_CC_LLVM_Swift; |
1291 | case CC_SwiftAsync: |
1292 | |
1293 | return llvm::dwarf::DW_CC_LLVM_Swift; |
1294 | case CC_PreserveMost: |
1295 | return llvm::dwarf::DW_CC_LLVM_PreserveMost; |
1296 | case CC_PreserveAll: |
1297 | return llvm::dwarf::DW_CC_LLVM_PreserveAll; |
1298 | case CC_X86RegCall: |
1299 | return llvm::dwarf::DW_CC_LLVM_X86RegCall; |
1300 | } |
1301 | return 0; |
1302 | } |
1303 | |
1304 | llvm::DIType *CGDebugInfo::CreateType(const FunctionType *Ty, |
1305 | llvm::DIFile *Unit) { |
1306 | SmallVector<llvm::Metadata *, 16> EltTys; |
1307 | |
1308 | |
1309 | EltTys.push_back(getOrCreateType(Ty->getReturnType(), Unit)); |
1310 | |
1311 | |
1312 | |
1313 | if (isa<FunctionNoProtoType>(Ty)) |
1314 | EltTys.push_back(DBuilder.createUnspecifiedParameter()); |
1315 | else if (const auto *FPT = dyn_cast<FunctionProtoType>(Ty)) { |
1316 | for (const QualType &ParamType : FPT->param_types()) |
1317 | EltTys.push_back(getOrCreateType(ParamType, Unit)); |
1318 | if (FPT->isVariadic()) |
1319 | EltTys.push_back(DBuilder.createUnspecifiedParameter()); |
1320 | } |
1321 | |
1322 | llvm::DITypeRefArray EltTypeArray = DBuilder.getOrCreateTypeArray(EltTys); |
1323 | return DBuilder.createSubroutineType(EltTypeArray, llvm::DINode::FlagZero, |
1324 | getDwarfCC(Ty->getCallConv())); |
1325 | } |
1326 | |
1327 | |
1328 | |
1329 | |
1330 | static llvm::DINode::DIFlags getAccessFlag(AccessSpecifier Access, |
1331 | const RecordDecl *RD) { |
1332 | AccessSpecifier Default = clang::AS_none; |
1333 | if (RD && RD->isClass()) |
1334 | Default = clang::AS_private; |
1335 | else if (RD && (RD->isStruct() || RD->isUnion())) |
1336 | Default = clang::AS_public; |
1337 | |
1338 | if (Access == Default) |
1339 | return llvm::DINode::FlagZero; |
1340 | |
1341 | switch (Access) { |
1342 | case clang::AS_private: |
1343 | return llvm::DINode::FlagPrivate; |
1344 | case clang::AS_protected: |
1345 | return llvm::DINode::FlagProtected; |
1346 | case clang::AS_public: |
1347 | return llvm::DINode::FlagPublic; |
1348 | case clang::AS_none: |
1349 | return llvm::DINode::FlagZero; |
1350 | } |
1351 | llvm_unreachable("unexpected access enumerator"); |
1352 | } |
1353 | |
1354 | llvm::DIType *CGDebugInfo::createBitFieldType(const FieldDecl *BitFieldDecl, |
1355 | llvm::DIScope *RecordTy, |
1356 | const RecordDecl *RD) { |
1357 | StringRef Name = BitFieldDecl->getName(); |
1358 | QualType Ty = BitFieldDecl->getType(); |
1359 | SourceLocation Loc = BitFieldDecl->getLocation(); |
1360 | llvm::DIFile *VUnit = getOrCreateFile(Loc); |
1361 | llvm::DIType *DebugType = getOrCreateType(Ty, VUnit); |
1362 | |
1363 | |
1364 | llvm::DIFile *File = getOrCreateFile(Loc); |
1365 | unsigned Line = getLineNumber(Loc); |
1366 | |
1367 | const CGBitFieldInfo &BitFieldInfo = |
1368 | CGM.getTypes().getCGRecordLayout(RD).getBitFieldInfo(BitFieldDecl); |
1369 | uint64_t SizeInBits = BitFieldInfo.Size; |
1370 | assert(SizeInBits > 0 && "found named 0-width bitfield"); |
1371 | uint64_t StorageOffsetInBits = |
1372 | CGM.getContext().toBits(BitFieldInfo.StorageOffset); |
1373 | uint64_t Offset = BitFieldInfo.Offset; |
1374 | |
1375 | |
1376 | |
1377 | if (CGM.getDataLayout().isBigEndian()) |
1378 | Offset = BitFieldInfo.StorageSize - BitFieldInfo.Size - Offset; |
1379 | uint64_t OffsetInBits = StorageOffsetInBits + Offset; |
1380 | llvm::DINode::DIFlags Flags = getAccessFlag(BitFieldDecl->getAccess(), RD); |
1381 | llvm::DINodeArray Annotations = CollectBTFTagAnnotations(BitFieldDecl); |
1382 | return DBuilder.createBitFieldMemberType( |
1383 | RecordTy, Name, File, Line, SizeInBits, OffsetInBits, StorageOffsetInBits, |
1384 | Flags, DebugType, Annotations); |
1385 | } |
1386 | |
1387 | llvm::DIType *CGDebugInfo::createFieldType( |
1388 | StringRef name, QualType type, SourceLocation loc, AccessSpecifier AS, |
1389 | uint64_t offsetInBits, uint32_t AlignInBits, llvm::DIFile *tunit, |
1390 | llvm::DIScope *scope, const RecordDecl *RD, llvm::DINodeArray Annotations) { |
1391 | llvm::DIType *debugType = getOrCreateType(type, tunit); |
1392 | |
1393 | |
1394 | llvm::DIFile *file = getOrCreateFile(loc); |
1395 | const unsigned line = getLineNumber(loc.isValid() ? loc : CurLoc); |
1396 | |
1397 | uint64_t SizeInBits = 0; |
1398 | auto Align = AlignInBits; |
1399 | if (!type->isIncompleteArrayType()) { |
1400 | TypeInfo TI = CGM.getContext().getTypeInfo(type); |
1401 | SizeInBits = TI.Width; |
1402 | if (!Align) |
1403 | Align = getTypeAlignIfRequired(type, CGM.getContext()); |
1404 | } |
1405 | |
1406 | llvm::DINode::DIFlags flags = getAccessFlag(AS, RD); |
1407 | return DBuilder.createMemberType(scope, name, file, line, SizeInBits, Align, |
1408 | offsetInBits, flags, debugType, Annotations); |
1409 | } |
1410 | |
1411 | void CGDebugInfo::CollectRecordLambdaFields( |
1412 | const CXXRecordDecl *CXXDecl, SmallVectorImpl<llvm::Metadata *> &elements, |
1413 | llvm::DIType *RecordTy) { |
1414 | |
1415 | |
1416 | |
1417 | const ASTRecordLayout &layout = CGM.getContext().getASTRecordLayout(CXXDecl); |
1418 | RecordDecl::field_iterator Field = CXXDecl->field_begin(); |
1419 | unsigned fieldno = 0; |
1420 | for (CXXRecordDecl::capture_const_iterator I = CXXDecl->captures_begin(), |
1421 | E = CXXDecl->captures_end(); |
1422 | I != E; ++I, ++Field, ++fieldno) { |
1423 | const LambdaCapture &C = *I; |
1424 | if (C.capturesVariable()) { |
1425 | SourceLocation Loc = C.getLocation(); |
1426 | assert(!Field->isBitField() && "lambdas don't have bitfield members!"); |
1427 | VarDecl *V = C.getCapturedVar(); |
1428 | StringRef VName = V->getName(); |
1429 | llvm::DIFile *VUnit = getOrCreateFile(Loc); |
1430 | auto Align = getDeclAlignIfRequired(V, CGM.getContext()); |
1431 | llvm::DIType *FieldType = createFieldType( |
1432 | VName, Field->getType(), Loc, Field->getAccess(), |
1433 | layout.getFieldOffset(fieldno), Align, VUnit, RecordTy, CXXDecl); |
1434 | elements.push_back(FieldType); |
1435 | } else if (C.capturesThis()) { |
1436 | |
1437 | |
1438 | |
1439 | |
1440 | FieldDecl *f = *Field; |
1441 | llvm::DIFile *VUnit = getOrCreateFile(f->getLocation()); |
1442 | QualType type = f->getType(); |
1443 | llvm::DIType *fieldType = createFieldType( |
1444 | "this", type, f->getLocation(), f->getAccess(), |
1445 | layout.getFieldOffset(fieldno), VUnit, RecordTy, CXXDecl); |
1446 | |
1447 | elements.push_back(fieldType); |
1448 | } |
1449 | } |
1450 | } |
1451 | |
1452 | llvm::DIDerivedType * |
1453 | CGDebugInfo::CreateRecordStaticField(const VarDecl *Var, llvm::DIType *RecordTy, |
1454 | const RecordDecl *RD) { |
1455 | |
1456 | |
1457 | Var = Var->getCanonicalDecl(); |
1458 | llvm::DIFile *VUnit = getOrCreateFile(Var->getLocation()); |
1459 | llvm::DIType *VTy = getOrCreateType(Var->getType(), VUnit); |
1460 | |
1461 | unsigned LineNumber = getLineNumber(Var->getLocation()); |
1462 | StringRef VName = Var->getName(); |
1463 | llvm::Constant *C = nullptr; |
1464 | if (Var->getInit()) { |
1465 | const APValue *Value = Var->evaluateValue(); |
1466 | if (Value) { |
1467 | if (Value->isInt()) |
1468 | C = llvm::ConstantInt::get(CGM.getLLVMContext(), Value->getInt()); |
1469 | if (Value->isFloat()) |
1470 | C = llvm::ConstantFP::get(CGM.getLLVMContext(), Value->getFloat()); |
1471 | } |
1472 | } |
1473 | |
1474 | llvm::DINode::DIFlags Flags = getAccessFlag(Var->getAccess(), RD); |
1475 | auto Align = getDeclAlignIfRequired(Var, CGM.getContext()); |
1476 | llvm::DIDerivedType *GV = DBuilder.createStaticMemberType( |
1477 | RecordTy, VName, VUnit, LineNumber, VTy, Flags, C, Align); |
1478 | StaticDataMemberCache[Var->getCanonicalDecl()].reset(GV); |
1479 | return GV; |
1480 | } |
1481 | |
1482 | void CGDebugInfo::CollectRecordNormalField( |
1483 | const FieldDecl *field, uint64_t OffsetInBits, llvm::DIFile *tunit, |
1484 | SmallVectorImpl<llvm::Metadata *> &elements, llvm::DIType *RecordTy, |
1485 | const RecordDecl *RD) { |
1486 | StringRef name = field->getName(); |
1487 | QualType type = field->getType(); |
1488 | |
1489 | |
1490 | if (name.empty() && !type->isRecordType()) |
1491 | return; |
1492 | |
1493 | llvm::DIType *FieldType; |
1494 | if (field->isBitField()) { |
1495 | FieldType = createBitFieldType(field, RecordTy, RD); |
1496 | } else { |
1497 | auto Align = getDeclAlignIfRequired(field, CGM.getContext()); |
1498 | llvm::DINodeArray Annotations = CollectBTFTagAnnotations(field); |
1499 | FieldType = |
1500 | createFieldType(name, type, field->getLocation(), field->getAccess(), |
1501 | OffsetInBits, Align, tunit, RecordTy, RD, Annotations); |
1502 | } |
1503 | |
1504 | elements.push_back(FieldType); |
1505 | } |
1506 | |
1507 | void CGDebugInfo::CollectRecordNestedType( |
1508 | const TypeDecl *TD, SmallVectorImpl<llvm::Metadata *> &elements) { |
1509 | QualType Ty = CGM.getContext().getTypeDeclType(TD); |
1510 | |
1511 | if (isa<InjectedClassNameType>(Ty)) |
1512 | return; |
1513 | SourceLocation Loc = TD->getLocation(); |
1514 | llvm::DIType *nestedType = getOrCreateType(Ty, getOrCreateFile(Loc)); |
1515 | elements.push_back(nestedType); |
1516 | } |
1517 | |
1518 | void CGDebugInfo::CollectRecordFields( |
1519 | const RecordDecl *record, llvm::DIFile *tunit, |
1520 | SmallVectorImpl<llvm::Metadata *> &elements, |
1521 | llvm::DICompositeType *RecordTy) { |
1522 | const auto *CXXDecl = dyn_cast<CXXRecordDecl>(record); |
1523 | |
1524 | if (CXXDecl && CXXDecl->isLambda()) |
1525 | CollectRecordLambdaFields(CXXDecl, elements, RecordTy); |
1526 | else { |
1527 | const ASTRecordLayout &layout = CGM.getContext().getASTRecordLayout(record); |
1528 | |
1529 | |
1530 | unsigned fieldNo = 0; |
1531 | |
1532 | |
1533 | |
1534 | for (const auto *I : record->decls()) |
1535 | if (const auto *V = dyn_cast<VarDecl>(I)) { |
1536 | if (V->hasAttr<NoDebugAttr>()) |
1537 | continue; |
1538 | |
1539 | |
1540 | |
1541 | if (CGM.getCodeGenOpts().EmitCodeView && |
1542 | isa<VarTemplateSpecializationDecl>(V)) |
1543 | continue; |
1544 | |
1545 | if (isa<VarTemplatePartialSpecializationDecl>(V)) |
1546 | continue; |
1547 | |
1548 | |
1549 | auto MI = StaticDataMemberCache.find(V->getCanonicalDecl()); |
1550 | if (MI != StaticDataMemberCache.end()) { |
1551 | assert(MI->second && |
1552 | "Static data member declaration should still exist"); |
1553 | elements.push_back(MI->second); |
1554 | } else { |
1555 | auto Field = CreateRecordStaticField(V, RecordTy, record); |
1556 | elements.push_back(Field); |
1557 | } |
1558 | } else if (const auto *field = dyn_cast<FieldDecl>(I)) { |
1559 | CollectRecordNormalField(field, layout.getFieldOffset(fieldNo), tunit, |
1560 | elements, RecordTy, record); |
1561 | |
1562 | |
1563 | ++fieldNo; |
1564 | } else if (CGM.getCodeGenOpts().EmitCodeView) { |
1565 | |
1566 | |
1567 | if (const auto *nestedType = dyn_cast<TypeDecl>(I)) |
1568 | if (!nestedType->isImplicit() && |
1569 | nestedType->getDeclContext() == record) |
1570 | CollectRecordNestedType(nestedType, elements); |
1571 | } |
1572 | } |
1573 | } |
1574 | |
1575 | llvm::DISubroutineType * |
1576 | CGDebugInfo::getOrCreateMethodType(const CXXMethodDecl *Method, |
1577 | llvm::DIFile *Unit, bool decl) { |
1578 | const FunctionProtoType *Func = Method->getType()->getAs<FunctionProtoType>(); |
1579 | if (Method->isStatic()) |
1580 | return cast_or_null<llvm::DISubroutineType>( |
1581 | getOrCreateType(QualType(Func, 0), Unit)); |
1582 | return getOrCreateInstanceMethodType(Method->getThisType(), Func, Unit, decl); |
1583 | } |
1584 | |
1585 | llvm::DISubroutineType * |
1586 | CGDebugInfo::getOrCreateInstanceMethodType(QualType ThisPtr, |
1587 | const FunctionProtoType *Func, |
1588 | llvm::DIFile *Unit, bool decl) { |
1589 | |
1590 | llvm::DITypeRefArray Args( |
1591 | cast<llvm::DISubroutineType>(getOrCreateType(QualType(Func, 0), Unit)) |
1592 | ->getTypeArray()); |
1593 | assert(Args.size() && "Invalid number of arguments!"); |
1594 | |
1595 | SmallVector<llvm::Metadata *, 16> Elts; |
1596 | |
1597 | QualType temp = Func->getReturnType(); |
1598 | if (temp->getTypeClass() == Type::Auto && decl) |
1599 | Elts.push_back(CreateType(cast<AutoType>(temp))); |
1600 | else |
1601 | Elts.push_back(Args[0]); |
1602 | |
1603 | |
1604 | const CXXRecordDecl *RD = ThisPtr->getPointeeCXXRecordDecl(); |
1605 | if (isa<ClassTemplateSpecializationDecl>(RD)) { |
1606 | |
1607 | const PointerType *ThisPtrTy = cast<PointerType>(ThisPtr); |
1608 | QualType PointeeTy = ThisPtrTy->getPointeeType(); |
1609 | unsigned AS = CGM.getContext().getTargetAddressSpace(PointeeTy); |
1610 | uint64_t Size = CGM.getTarget().getPointerWidth(AS); |
1611 | auto Align = getTypeAlignIfRequired(ThisPtrTy, CGM.getContext()); |
1612 | llvm::DIType *PointeeType = getOrCreateType(PointeeTy, Unit); |
1613 | llvm::DIType *ThisPtrType = |
1614 | DBuilder.createPointerType(PointeeType, Size, Align); |
1615 | TypeCache[ThisPtr.getAsOpaquePtr()].reset(ThisPtrType); |
1616 | |
1617 | |
1618 | |
1619 | ThisPtrType = DBuilder.createObjectPointerType(ThisPtrType); |
1620 | Elts.push_back(ThisPtrType); |
1621 | } else { |
1622 | llvm::DIType *ThisPtrType = getOrCreateType(ThisPtr, Unit); |
1623 | TypeCache[ThisPtr.getAsOpaquePtr()].reset(ThisPtrType); |
1624 | ThisPtrType = DBuilder.createObjectPointerType(ThisPtrType); |
1625 | Elts.push_back(ThisPtrType); |
1626 | } |
1627 | |
1628 | |
1629 | for (unsigned i = 1, e = Args.size(); i != e; ++i) |
1630 | Elts.push_back(Args[i]); |
1631 | |
1632 | llvm::DITypeRefArray EltTypeArray = DBuilder.getOrCreateTypeArray(Elts); |
1633 | |
1634 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
1635 | if (Func->getExtProtoInfo().RefQualifier == RQ_LValue) |
1636 | Flags |= llvm::DINode::FlagLValueReference; |
1637 | if (Func->getExtProtoInfo().RefQualifier == RQ_RValue) |
1638 | Flags |= llvm::DINode::FlagRValueReference; |
1639 | |
1640 | return DBuilder.createSubroutineType(EltTypeArray, Flags, |
1641 | getDwarfCC(Func->getCallConv())); |
1642 | } |
1643 | |
1644 | |
1645 | |
1646 | static bool isFunctionLocalClass(const CXXRecordDecl *RD) { |
1647 | if (const auto *NRD = dyn_cast<CXXRecordDecl>(RD->getDeclContext())) |
1648 | return isFunctionLocalClass(NRD); |
1649 | if (isa<FunctionDecl>(RD->getDeclContext())) |
1650 | return true; |
1651 | return false; |
1652 | } |
1653 | |
1654 | llvm::DISubprogram *CGDebugInfo::CreateCXXMemberFunction( |
1655 | const CXXMethodDecl *Method, llvm::DIFile *Unit, llvm::DIType *RecordTy) { |
1656 | bool IsCtorOrDtor = |
1657 | isa<CXXConstructorDecl>(Method) || isa<CXXDestructorDecl>(Method); |
1658 | |
1659 | StringRef MethodName = getFunctionName(Method); |
1660 | llvm::DISubroutineType *MethodTy = getOrCreateMethodType(Method, Unit, true); |
1661 | |
1662 | |
1663 | |
1664 | StringRef MethodLinkageName; |
1665 | |
1666 | |
1667 | |
1668 | |
1669 | |
1670 | if (!IsCtorOrDtor && !isFunctionLocalClass(Method->getParent())) |
1671 | MethodLinkageName = CGM.getMangledName(Method); |
1672 | |
1673 | |
1674 | llvm::DIFile *MethodDefUnit = nullptr; |
1675 | unsigned MethodLine = 0; |
1676 | if (!Method->isImplicit()) { |
1677 | MethodDefUnit = getOrCreateFile(Method->getLocation()); |
1678 | MethodLine = getLineNumber(Method->getLocation()); |
1679 | } |
1680 | |
1681 | |
1682 | llvm::DIType *ContainingType = nullptr; |
1683 | unsigned VIndex = 0; |
1684 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
1685 | llvm::DISubprogram::DISPFlags SPFlags = llvm::DISubprogram::SPFlagZero; |
1686 | int ThisAdjustment = 0; |
1687 | |
1688 | if (Method->isVirtual()) { |
1689 | if (Method->isPure()) |
1690 | SPFlags |= llvm::DISubprogram::SPFlagPureVirtual; |
1691 | else |
1692 | SPFlags |= llvm::DISubprogram::SPFlagVirtual; |
1693 | |
1694 | if (CGM.getTarget().getCXXABI().isItaniumFamily()) { |
1695 | |
1696 | |
1697 | if (!isa<CXXDestructorDecl>(Method)) |
1698 | VIndex = CGM.getItaniumVTableContext().getMethodVTableIndex(Method); |
1699 | } else { |
1700 | |
1701 | |
1702 | const auto *DD = dyn_cast<CXXDestructorDecl>(Method); |
1703 | GlobalDecl GD = DD ? GlobalDecl(DD, Dtor_Deleting) : GlobalDecl(Method); |
1704 | MethodVFTableLocation ML = |
1705 | CGM.getMicrosoftVTableContext().getMethodVFTableLocation(GD); |
1706 | VIndex = ML.Index; |
1707 | |
1708 | |
1709 | |
1710 | |
1711 | |
1712 | |
1713 | if (Method->size_overridden_methods() == 0) |
1714 | Flags |= llvm::DINode::FlagIntroducedVirtual; |
1715 | |
1716 | |
1717 | |
1718 | |
1719 | ThisAdjustment = CGM.getCXXABI() |
1720 | .getVirtualFunctionPrologueThisAdjustment(GD) |
1721 | .getQuantity(); |
1722 | } |
1723 | ContainingType = RecordTy; |
1724 | } |
1725 | |
1726 | |
1727 | |
1728 | auto checkAttrDeleted = [&](const auto *Method) { |
1729 | if (Method->getCanonicalDecl()->isDeleted()) |
1730 | SPFlags |= llvm::DISubprogram::SPFlagDeleted; |
1731 | }; |
1732 | |
1733 | switch (Method->getKind()) { |
1734 | |
1735 | case Decl::CXXConstructor: |
1736 | case Decl::CXXDestructor: |
1737 | checkAttrDeleted(Method); |
1738 | break; |
1739 | case Decl::CXXMethod: |
1740 | if (Method->isCopyAssignmentOperator() || |
1741 | Method->isMoveAssignmentOperator()) |
1742 | checkAttrDeleted(Method); |
1743 | break; |
1744 | default: |
1745 | break; |
1746 | } |
1747 | |
1748 | if (Method->isNoReturn()) |
1749 | Flags |= llvm::DINode::FlagNoReturn; |
1750 | |
1751 | if (Method->isStatic()) |
1752 | Flags |= llvm::DINode::FlagStaticMember; |
1753 | if (Method->isImplicit()) |
1754 | Flags |= llvm::DINode::FlagArtificial; |
1755 | Flags |= getAccessFlag(Method->getAccess(), Method->getParent()); |
1756 | if (const auto *CXXC = dyn_cast<CXXConstructorDecl>(Method)) { |
1757 | if (CXXC->isExplicit()) |
1758 | Flags |= llvm::DINode::FlagExplicit; |
1759 | } else if (const auto *CXXC = dyn_cast<CXXConversionDecl>(Method)) { |
1760 | if (CXXC->isExplicit()) |
1761 | Flags |= llvm::DINode::FlagExplicit; |
1762 | } |
1763 | if (Method->hasPrototype()) |
1764 | Flags |= llvm::DINode::FlagPrototyped; |
1765 | if (Method->getRefQualifier() == RQ_LValue) |
1766 | Flags |= llvm::DINode::FlagLValueReference; |
1767 | if (Method->getRefQualifier() == RQ_RValue) |
1768 | Flags |= llvm::DINode::FlagRValueReference; |
1769 | if (!Method->isExternallyVisible()) |
1770 | SPFlags |= llvm::DISubprogram::SPFlagLocalToUnit; |
1771 | if (CGM.getLangOpts().Optimize) |
1772 | SPFlags |= llvm::DISubprogram::SPFlagOptimized; |
1773 | |
1774 | |
1775 | |
1776 | if (DebugKind == codegenoptions::DebugInfoConstructor) |
1777 | if (const CXXConstructorDecl *CD = dyn_cast<CXXConstructorDecl>(Method)) |
1778 | completeUnusedClass(*CD->getParent()); |
1779 | |
1780 | llvm::DINodeArray TParamsArray = CollectFunctionTemplateParams(Method, Unit); |
1781 | llvm::DISubprogram *SP = DBuilder.createMethod( |
1782 | RecordTy, MethodName, MethodLinkageName, MethodDefUnit, MethodLine, |
1783 | MethodTy, VIndex, ThisAdjustment, ContainingType, Flags, SPFlags, |
1784 | TParamsArray.get()); |
1785 | |
1786 | SPCache[Method->getCanonicalDecl()].reset(SP); |
1787 | |
1788 | return SP; |
1789 | } |
1790 | |
1791 | void CGDebugInfo::CollectCXXMemberFunctions( |
1792 | const CXXRecordDecl *RD, llvm::DIFile *Unit, |
1793 | SmallVectorImpl<llvm::Metadata *> &EltTys, llvm::DIType *RecordTy) { |
1794 | |
1795 | |
1796 | |
1797 | |
1798 | for (const auto *I : RD->decls()) { |
1799 | const auto *Method = dyn_cast<CXXMethodDecl>(I); |
1800 | |
1801 | |
1802 | |
1803 | |
1804 | |
1805 | |
1806 | |
1807 | |
1808 | |
1809 | |
1810 | if (!Method || Method->isImplicit() || Method->hasAttr<NoDebugAttr>()) |
1811 | continue; |
1812 | |
1813 | if (Method->getType()->castAs<FunctionProtoType>()->getContainedAutoType()) |
1814 | continue; |
1815 | |
1816 | |
1817 | |
1818 | |
1819 | |
1820 | |
1821 | |
1822 | auto MI = SPCache.find(Method->getCanonicalDecl()); |
1823 | EltTys.push_back(MI == SPCache.end() |
1824 | ? CreateCXXMemberFunction(Method, Unit, RecordTy) |
1825 | : static_cast<llvm::Metadata *>(MI->second)); |
1826 | } |
1827 | } |
1828 | |
1829 | void CGDebugInfo::CollectCXXBases(const CXXRecordDecl *RD, llvm::DIFile *Unit, |
1830 | SmallVectorImpl<llvm::Metadata *> &EltTys, |
1831 | llvm::DIType *RecordTy) { |
1832 | llvm::DenseSet<CanonicalDeclPtr<const CXXRecordDecl>> SeenTypes; |
1833 | CollectCXXBasesAux(RD, Unit, EltTys, RecordTy, RD->bases(), SeenTypes, |
1834 | llvm::DINode::FlagZero); |
1835 | |
1836 | |
1837 | |
1838 | if (CGM.getCodeGenOpts().EmitCodeView) { |
1839 | CollectCXXBasesAux(RD, Unit, EltTys, RecordTy, RD->vbases(), SeenTypes, |
1840 | llvm::DINode::FlagIndirectVirtualBase); |
1841 | } |
1842 | } |
1843 | |
1844 | void CGDebugInfo::CollectCXXBasesAux( |
1845 | const CXXRecordDecl *RD, llvm::DIFile *Unit, |
1846 | SmallVectorImpl<llvm::Metadata *> &EltTys, llvm::DIType *RecordTy, |
1847 | const CXXRecordDecl::base_class_const_range &Bases, |
1848 | llvm::DenseSet<CanonicalDeclPtr<const CXXRecordDecl>> &SeenTypes, |
1849 | llvm::DINode::DIFlags StartingFlags) { |
1850 | const ASTRecordLayout &RL = CGM.getContext().getASTRecordLayout(RD); |
1851 | for (const auto &BI : Bases) { |
1852 | const auto *Base = |
1853 | cast<CXXRecordDecl>(BI.getType()->castAs<RecordType>()->getDecl()); |
1854 | if (!SeenTypes.insert(Base).second) |
1855 | continue; |
1856 | auto *BaseTy = getOrCreateType(BI.getType(), Unit); |
1857 | llvm::DINode::DIFlags BFlags = StartingFlags; |
1858 | uint64_t BaseOffset; |
1859 | uint32_t VBPtrOffset = 0; |
1860 | |
1861 | if (BI.isVirtual()) { |
1862 | if (CGM.getTarget().getCXXABI().isItaniumFamily()) { |
1863 | |
1864 | |
1865 | BaseOffset = 0 - CGM.getItaniumVTableContext() |
1866 | .getVirtualBaseOffsetOffset(RD, Base) |
1867 | .getQuantity(); |
1868 | } else { |
1869 | |
1870 | |
1871 | BaseOffset = |
1872 | 4 * CGM.getMicrosoftVTableContext().getVBTableIndex(RD, Base); |
1873 | VBPtrOffset = CGM.getContext() |
1874 | .getASTRecordLayout(RD) |
1875 | .getVBPtrOffset() |
1876 | .getQuantity(); |
1877 | } |
1878 | BFlags |= llvm::DINode::FlagVirtual; |
1879 | } else |
1880 | BaseOffset = CGM.getContext().toBits(RL.getBaseClassOffset(Base)); |
1881 | |
1882 | |
1883 | |
1884 | BFlags |= getAccessFlag(BI.getAccessSpecifier(), RD); |
1885 | llvm::DIType *DTy = DBuilder.createInheritance(RecordTy, BaseTy, BaseOffset, |
1886 | VBPtrOffset, BFlags); |
1887 | EltTys.push_back(DTy); |
1888 | } |
1889 | } |
1890 | |
1891 | llvm::DINodeArray |
1892 | CGDebugInfo::CollectTemplateParams(Optional<TemplateArgs> OArgs, |
1893 | llvm::DIFile *Unit) { |
1894 | if (!OArgs) |
| 22 | | Calling 'Optional::operator bool' | |
|
| 30 | | Returning from 'Optional::operator bool' | |
|
| |
1895 | return llvm::DINodeArray(); |
1896 | TemplateArgs &Args = *OArgs; |
1897 | SmallVector<llvm::Metadata *, 16> TemplateParams; |
1898 | for (unsigned i = 0, e = Args.Args.size(); i != e; ++i) { |
| 32 | | Assuming 'i' is not equal to 'e' | |
|
| 33 | | Loop condition is true. Entering loop body | |
|
1899 | const TemplateArgument &TA = Args.Args[i]; |
1900 | StringRef Name; |
1901 | bool defaultParameter = false; |
1902 | if (Args.TList) |
| 34 | | Assuming field 'TList' is null | |
|
| |
1903 | Name = Args.TList->getParam(i)->getName(); |
1904 | switch (TA.getKind()) { |
| 36 | | Control jumps to 'case Declaration:' at line 1935 | |
|
1905 | case TemplateArgument::Type: { |
1906 | llvm::DIType *TTy = getOrCreateType(TA.getAsType(), Unit); |
1907 | |
1908 | if (Args.TList) |
1909 | if (auto *templateType = |
1910 | dyn_cast_or_null<TemplateTypeParmDecl>(Args.TList->getParam(i))) |
1911 | if (templateType->hasDefaultArgument()) |
1912 | defaultParameter = |
1913 | templateType->getDefaultArgument() == TA.getAsType(); |
1914 | |
1915 | TemplateParams.push_back(DBuilder.createTemplateTypeParameter( |
1916 | TheCU, Name, TTy, defaultParameter)); |
1917 | |
1918 | } break; |
1919 | case TemplateArgument::Integral: { |
1920 | llvm::DIType *TTy = getOrCreateType(TA.getIntegralType(), Unit); |
1921 | if (Args.TList && CGM.getCodeGenOpts().DwarfVersion >= 5) |
1922 | if (auto *templateType = dyn_cast_or_null<NonTypeTemplateParmDecl>( |
1923 | Args.TList->getParam(i))) |
1924 | if (templateType->hasDefaultArgument() && |
1925 | !templateType->getDefaultArgument()->isValueDependent()) |
1926 | defaultParameter = llvm::APSInt::isSameValue( |
1927 | templateType->getDefaultArgument()->EvaluateKnownConstInt( |
1928 | CGM.getContext()), |
1929 | TA.getAsIntegral()); |
1930 | |
1931 | TemplateParams.push_back(DBuilder.createTemplateValueParameter( |
1932 | TheCU, Name, TTy, defaultParameter, |
1933 | llvm::ConstantInt::get(CGM.getLLVMContext(), TA.getAsIntegral()))); |
1934 | } break; |
1935 | case TemplateArgument::Declaration: { |
1936 | const ValueDecl *D = TA.getAsDecl(); |
1937 | QualType T = TA.getParamTypeForDecl().getDesugaredType(CGM.getContext()); |
1938 | llvm::DIType *TTy = getOrCreateType(T, Unit); |
1939 | llvm::Constant *V = nullptr; |
| 37 | | 'V' initialized to a null pointer value | |
|
1940 | |
1941 | |
1942 | if (!CGM.getLangOpts().CUDA || CGM.getLangOpts().CUDAIsDevice || |
| 38 | | Assuming field 'CUDA' is not equal to 0 | |
|
| 39 | | Assuming field 'CUDAIsDevice' is 0 | |
|
| |
1943 | !D->hasAttr<CUDADeviceAttr>()) { |
| 40 | | Assuming the condition is true | |
|
1944 | const CXXMethodDecl *MD; |
1945 | |
1946 | |
1947 | if (const auto *VD = dyn_cast<VarDecl>(D)) |
| 42 | | Assuming 'D' is not a 'VarDecl' | |
|
1948 | V = CGM.GetAddrOfGlobalVar(VD); |
1949 | |
1950 | |
1951 | else if ((MD = dyn_cast<CXXMethodDecl>(D)) && MD->isInstance()) |
| 43 | | Assuming 'D' is not a 'CXXMethodDecl' | |
|
| |
1952 | V = CGM.getCXXABI().EmitMemberFunctionPointer(MD); |
1953 | else if (const auto *FD = dyn_cast<FunctionDecl>(D)) |
| 45 | | Assuming 'D' is not a 'FunctionDecl' | |
|
| |
1954 | V = CGM.GetAddrOfFunction(FD); |
1955 | |
1956 | |
1957 | else if (const auto *MPT = |
| |
1958 | dyn_cast<MemberPointerType>(T.getTypePtr())) { |
| 47 | | Assuming the object is not a 'MemberPointerType' | |
|
1959 | |
1960 | |
1961 | |
1962 | uint64_t fieldOffset = CGM.getContext().getFieldOffset(D); |
1963 | CharUnits chars = |
1964 | CGM.getContext().toCharUnitsFromBits((int64_t)fieldOffset); |
1965 | V = CGM.getCXXABI().EmitMemberDataPointer(MPT, chars); |
1966 | } else if (const auto *GD = dyn_cast<MSGuidDecl>(D)) { |
| 49 | | Assuming 'D' is not a 'MSGuidDecl' | |
|
| |
1967 | V = CGM.GetAddrOfMSGuidDecl(GD).getPointer(); |
1968 | } else if (const auto *TPO = dyn_cast<TemplateParamObjectDecl>(D)) { |
| 51 | | Assuming 'D' is not a 'TemplateParamObjectDecl' | |
|
| |
1969 | if (T->isRecordType()) |
1970 | V = ConstantEmitter(CGM).emitAbstract( |
1971 | SourceLocation(), TPO->getValue(), TPO->getType()); |
1972 | else |
1973 | V = CGM.GetAddrOfTemplateParamObject(TPO).getPointer(); |
1974 | } |
1975 | assert(V && "Failed to find template parameter pointer"); |
1976 | V = V->stripPointerCasts(); |
| 53 | | Called C++ object pointer is null |
|
1977 | } |
1978 | TemplateParams.push_back(DBuilder.createTemplateValueParameter( |
1979 | TheCU, Name, TTy, defaultParameter, cast_or_null<llvm::Constant>(V))); |
1980 | } break; |
1981 | case TemplateArgument::NullPtr: { |
1982 | QualType T = TA.getNullPtrType(); |
1983 | llvm::DIType *TTy = getOrCreateType(T, Unit); |
1984 | llvm::Constant *V = nullptr; |
1985 | |
1986 | |
1987 | if (const auto *MPT = dyn_cast<MemberPointerType>(T.getTypePtr())) |
1988 | |
1989 | |
1990 | |
1991 | |
1992 | |
1993 | if (MPT->isMemberDataPointer()) |
1994 | V = CGM.getCXXABI().EmitNullMemberPointer(MPT); |
1995 | if (!V) |
1996 | V = llvm::ConstantInt::get(CGM.Int8Ty, 0); |
1997 | TemplateParams.push_back(DBuilder.createTemplateValueParameter( |
1998 | TheCU, Name, TTy, defaultParameter, V)); |
1999 | } break; |
2000 | case TemplateArgument::Template: |
2001 | TemplateParams.push_back(DBuilder.createTemplateTemplateParameter( |
2002 | TheCU, Name, nullptr, |
2003 | TA.getAsTemplate().getAsTemplateDecl()->getQualifiedNameAsString())); |
2004 | break; |
2005 | case TemplateArgument::Pack: |
2006 | TemplateParams.push_back(DBuilder.createTemplateParameterPack( |
2007 | TheCU, Name, nullptr, |
2008 | CollectTemplateParams({{nullptr, TA.getPackAsArray()}}, Unit))); |
2009 | break; |
2010 | case TemplateArgument::Expression: { |
2011 | const Expr *E = TA.getAsExpr(); |
2012 | QualType T = E->getType(); |
2013 | if (E->isGLValue()) |
2014 | T = CGM.getContext().getLValueReferenceType(T); |
2015 | llvm::Constant *V = ConstantEmitter(CGM).emitAbstract(E, T); |
2016 | assert(V && "Expression in template argument isn't constant"); |
2017 | llvm::DIType *TTy = getOrCreateType(T, Unit); |
2018 | TemplateParams.push_back(DBuilder.createTemplateValueParameter( |
2019 | TheCU, Name, TTy, defaultParameter, V->stripPointerCasts())); |
2020 | } break; |
2021 | |
2022 | case TemplateArgument::TemplateExpansion: |
2023 | case TemplateArgument::Null: |
2024 | llvm_unreachable( |
2025 | "These argument types shouldn't exist in concrete types"); |
2026 | } |
2027 | } |
2028 | return DBuilder.getOrCreateArray(TemplateParams); |
2029 | } |
2030 | |
2031 | Optional<CGDebugInfo::TemplateArgs> |
2032 | CGDebugInfo::GetTemplateArgs(const FunctionDecl *FD) const { |
2033 | if (FD->getTemplatedKind() == |
2034 | FunctionDecl::TK_FunctionTemplateSpecialization) { |
2035 | const TemplateParameterList *TList = FD->getTemplateSpecializationInfo() |
2036 | ->getTemplate() |
2037 | ->getTemplateParameters(); |
2038 | return {{TList, FD->getTemplateSpecializationArgs()->asArray()}}; |
2039 | } |
2040 | return None; |
2041 | } |
2042 | Optional<CGDebugInfo::TemplateArgs> |
2043 | CGDebugInfo::GetTemplateArgs(const VarDecl *VD) const { |
2044 | |
2045 | |
2046 | |
2047 | auto *TS = dyn_cast<VarTemplateSpecializationDecl>(VD); |
2048 | if (!TS) |
2049 | return None; |
2050 | VarTemplateDecl *T = TS->getSpecializedTemplate(); |
2051 | const TemplateParameterList *TList = T->getTemplateParameters(); |
2052 | auto TA = TS->getTemplateArgs().asArray(); |
2053 | return {{TList, TA}}; |
2054 | } |
2055 | Optional<CGDebugInfo::TemplateArgs> |
2056 | CGDebugInfo::GetTemplateArgs(const RecordDecl *RD) const { |
2057 | if (auto *TSpecial = dyn_cast<ClassTemplateSpecializationDecl>(RD)) { |
2058 | |
2059 | |
2060 | |
2061 | TemplateParameterList *TPList = |
2062 | TSpecial->getSpecializedTemplate()->getTemplateParameters(); |
2063 | const TemplateArgumentList &TAList = TSpecial->getTemplateArgs(); |
2064 | return {{TPList, TAList.asArray()}}; |
2065 | } |
2066 | return None; |
2067 | } |
2068 | |
2069 | llvm::DINodeArray |
2070 | CGDebugInfo::CollectFunctionTemplateParams(const FunctionDecl *FD, |
2071 | llvm::DIFile *Unit) { |
2072 | return CollectTemplateParams(GetTemplateArgs(FD), Unit); |
2073 | } |
2074 | |
2075 | llvm::DINodeArray CGDebugInfo::CollectVarTemplateParams(const VarDecl *VL, |
2076 | llvm::DIFile *Unit) { |
2077 | return CollectTemplateParams(GetTemplateArgs(VL), Unit); |
| 21 | | Calling 'CGDebugInfo::CollectTemplateParams' | |
|
2078 | } |
2079 | |
2080 | llvm::DINodeArray CGDebugInfo::CollectCXXTemplateParams(const RecordDecl *RD, |
2081 | llvm::DIFile *Unit) { |
2082 | return CollectTemplateParams(GetTemplateArgs(RD), Unit); |
2083 | } |
2084 | |
2085 | llvm::DINodeArray CGDebugInfo::CollectBTFTagAnnotations(const Decl *D) { |
2086 | if (!D->hasAttr<BTFTagAttr>()) |
2087 | return nullptr; |
2088 | |
2089 | SmallVector<llvm::Metadata *, 4> Annotations; |
2090 | for (const auto *I : D->specific_attrs<BTFTagAttr>()) { |
2091 | llvm::Metadata *Ops[2] = { |
2092 | llvm::MDString::get(CGM.getLLVMContext(), StringRef("btf_tag")), |
2093 | llvm::MDString::get(CGM.getLLVMContext(), I->getBTFTag())}; |
2094 | Annotations.push_back(llvm::MDNode::get(CGM.getLLVMContext(), Ops)); |
2095 | } |
2096 | return DBuilder.getOrCreateArray(Annotations); |
2097 | } |
2098 | |
2099 | llvm::DIType *CGDebugInfo::getOrCreateVTablePtrType(llvm::DIFile *Unit) { |
2100 | if (VTablePtrType) |
2101 | return VTablePtrType; |
2102 | |
2103 | ASTContext &Context = CGM.getContext(); |
2104 | |
2105 | |
2106 | llvm::Metadata *STy = getOrCreateType(Context.IntTy, Unit); |
2107 | llvm::DITypeRefArray SElements = DBuilder.getOrCreateTypeArray(STy); |
2108 | llvm::DIType *SubTy = DBuilder.createSubroutineType(SElements); |
2109 | unsigned Size = Context.getTypeSize(Context.VoidPtrTy); |
2110 | unsigned VtblPtrAddressSpace = CGM.getTarget().getVtblPtrAddressSpace(); |
2111 | Optional<unsigned> DWARFAddressSpace = |
2112 | CGM.getTarget().getDWARFAddressSpace(VtblPtrAddressSpace); |
2113 | |
2114 | llvm::DIType *vtbl_ptr_type = DBuilder.createPointerType( |
2115 | SubTy, Size, 0, DWARFAddressSpace, "__vtbl_ptr_type"); |
2116 | VTablePtrType = DBuilder.createPointerType(vtbl_ptr_type, Size); |
2117 | return VTablePtrType; |
2118 | } |
2119 | |
2120 | StringRef CGDebugInfo::getVTableName(const CXXRecordDecl *RD) { |
2121 | |
2122 | return internString("_vptr$", RD->getNameAsString()); |
2123 | } |
2124 | |
2125 | StringRef CGDebugInfo::getDynamicInitializerName(const VarDecl *VD, |
2126 | DynamicInitKind StubKind, |
2127 | llvm::Function *InitFn) { |
2128 | |
2129 | |
2130 | if (!CGM.getCodeGenOpts().EmitCodeView || |
2131 | StubKind == DynamicInitKind::GlobalArrayDestructor) |
2132 | return InitFn->getName(); |
2133 | |
2134 | |
2135 | |
2136 | |
2137 | |
2138 | SmallString<128> QualifiedGV; |
2139 | StringRef Quals; |
2140 | StringRef GVName; |
2141 | { |
2142 | llvm::raw_svector_ostream OS(QualifiedGV); |
2143 | VD->printQualifiedName(OS, getPrintingPolicy()); |
2144 | std::tie(Quals, GVName) = OS.str().rsplit("::"); |
2145 | if (GVName.empty()) |
2146 | std::swap(Quals, GVName); |
2147 | } |
2148 | |
2149 | SmallString<128> InitName; |
2150 | llvm::raw_svector_ostream OS(InitName); |
2151 | if (!Quals.empty()) |
2152 | OS << Quals << "::"; |
2153 | |
2154 | switch (StubKind) { |
2155 | case DynamicInitKind::NoStub: |
2156 | case DynamicInitKind::GlobalArrayDestructor: |
2157 | llvm_unreachable("not an initializer"); |
2158 | case DynamicInitKind::Initializer: |
2159 | OS << "`dynamic initializer for '"; |
2160 | break; |
2161 | case DynamicInitKind::AtExit: |
2162 | OS << "`dynamic atexit destructor for '"; |
2163 | break; |
2164 | } |
2165 | |
2166 | OS << GVName; |
2167 | |
2168 | |
2169 | if (const auto *VTpl = dyn_cast<VarTemplateSpecializationDecl>(VD)) { |
2170 | printTemplateArgumentList(OS, VTpl->getTemplateArgs().asArray(), |
2171 | getPrintingPolicy()); |
2172 | } |
2173 | |
2174 | OS << '\''; |
2175 | |
2176 | return internString(OS.str()); |
2177 | } |
2178 | |
2179 | void CGDebugInfo::CollectVTableInfo(const CXXRecordDecl *RD, llvm::DIFile *Unit, |
2180 | SmallVectorImpl<llvm::Metadata *> &EltTys) { |
2181 | |
2182 | if (!RD->isDynamicClass()) |
2183 | return; |
2184 | |
2185 | |
2186 | |
2187 | |
2188 | |
2189 | const ASTRecordLayout &RL = CGM.getContext().getASTRecordLayout(RD); |
2190 | if (!RL.hasExtendableVFPtr()) |
2191 | return; |
2192 | |
2193 | |
2194 | |
2195 | |
2196 | llvm::DIType *VPtrTy = nullptr; |
2197 | bool NeedVTableShape = CGM.getCodeGenOpts().EmitCodeView && |
2198 | CGM.getTarget().getCXXABI().isMicrosoft(); |
2199 | if (NeedVTableShape) { |
2200 | uint64_t PtrWidth = |
2201 | CGM.getContext().getTypeSize(CGM.getContext().VoidPtrTy); |
2202 | const VTableLayout &VFTLayout = |
2203 | CGM.getMicrosoftVTableContext().getVFTableLayout(RD, CharUnits::Zero()); |
2204 | unsigned VSlotCount = |
2205 | VFTLayout.vtable_components().size() - CGM.getLangOpts().RTTIData; |
2206 | unsigned VTableWidth = PtrWidth * VSlotCount; |
2207 | unsigned VtblPtrAddressSpace = CGM.getTarget().getVtblPtrAddressSpace(); |
2208 | Optional<unsigned> DWARFAddressSpace = |
2209 | CGM.getTarget().getDWARFAddressSpace(VtblPtrAddressSpace); |
2210 | |
2211 | |
2212 | llvm::DIType *VTableType = DBuilder.createPointerType( |
2213 | nullptr, VTableWidth, 0, DWARFAddressSpace, "__vtbl_ptr_type"); |
2214 | EltTys.push_back(VTableType); |
2215 | |
2216 | |
2217 | VPtrTy = DBuilder.createPointerType(VTableType, PtrWidth); |
2218 | } |
2219 | |
2220 | |
2221 | if (RL.getPrimaryBase()) |
2222 | return; |
2223 | |
2224 | if (!VPtrTy) |
2225 | VPtrTy = getOrCreateVTablePtrType(Unit); |
2226 | |
2227 | unsigned Size = CGM.getContext().getTypeSize(CGM.getContext().VoidPtrTy); |
2228 | llvm::DIType *VPtrMember = |
2229 | DBuilder.createMemberType(Unit, getVTableName(RD), Unit, 0, Size, 0, 0, |
2230 | llvm::DINode::FlagArtificial, VPtrTy); |
2231 | EltTys.push_back(VPtrMember); |
2232 | } |
2233 | |
2234 | llvm::DIType *CGDebugInfo::getOrCreateRecordType(QualType RTy, |
2235 | SourceLocation Loc) { |
2236 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
2237 | llvm::DIType *T = getOrCreateType(RTy, getOrCreateFile(Loc)); |
2238 | return T; |
2239 | } |
2240 | |
2241 | llvm::DIType *CGDebugInfo::getOrCreateInterfaceType(QualType D, |
2242 | SourceLocation Loc) { |
2243 | return getOrCreateStandaloneType(D, Loc); |
2244 | } |
2245 | |
2246 | llvm::DIType *CGDebugInfo::getOrCreateStandaloneType(QualType D, |
2247 | SourceLocation Loc) { |
2248 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
2249 | assert(!D.isNull() && "null type"); |
2250 | llvm::DIType *T = getOrCreateType(D, getOrCreateFile(Loc)); |
2251 | assert(T && "could not create debug info for type"); |
2252 | |
2253 | RetainedTypes.push_back(D.getAsOpaquePtr()); |
2254 | return T; |
2255 | } |
2256 | |
2257 | void CGDebugInfo::addHeapAllocSiteMetadata(llvm::CallBase *CI, |
2258 | QualType AllocatedTy, |
2259 | SourceLocation Loc) { |
2260 | if (CGM.getCodeGenOpts().getDebugInfo() <= |
2261 | codegenoptions::DebugLineTablesOnly) |
2262 | return; |
2263 | llvm::MDNode *node; |
2264 | if (AllocatedTy->isVoidType()) |
2265 | node = llvm::MDNode::get(CGM.getLLVMContext(), None); |
2266 | else |
2267 | node = getOrCreateType(AllocatedTy, getOrCreateFile(Loc)); |
2268 | |
2269 | CI->setMetadata("heapallocsite", node); |
2270 | } |
2271 | |
2272 | void CGDebugInfo::completeType(const EnumDecl *ED) { |
2273 | if (DebugKind <= codegenoptions::DebugLineTablesOnly) |
2274 | return; |
2275 | QualType Ty = CGM.getContext().getEnumType(ED); |
2276 | void *TyPtr = Ty.getAsOpaquePtr(); |
2277 | auto I = TypeCache.find(TyPtr); |
2278 | if (I == TypeCache.end() || !cast<llvm::DIType>(I->second)->isForwardDecl()) |
2279 | return; |
2280 | llvm::DIType *Res = CreateTypeDefinition(Ty->castAs<EnumType>()); |
2281 | assert(!Res->isForwardDecl()); |
2282 | TypeCache[TyPtr].reset(Res); |
2283 | } |
2284 | |
2285 | void CGDebugInfo::completeType(const RecordDecl *RD) { |
2286 | if (DebugKind > codegenoptions::LimitedDebugInfo || |
2287 | !CGM.getLangOpts().CPlusPlus) |
2288 | completeRequiredType(RD); |
2289 | } |
2290 | |
2291 | |
2292 | static bool isClassOrMethodDLLImport(const CXXRecordDecl *RD) { |
2293 | if (RD->hasAttr<DLLImportAttr>()) |
2294 | return true; |
2295 | for (const CXXMethodDecl *MD : RD->methods()) |
2296 | if (MD->hasAttr<DLLImportAttr>()) |
2297 | return true; |
2298 | return false; |
2299 | } |
2300 | |
2301 | |
2302 | static bool isDefinedInClangModule(const RecordDecl *RD) { |
2303 | |
2304 | if (!RD || !RD->isFromASTFile()) |
2305 | return false; |
2306 | |
2307 | if (!RD->isExternallyVisible() && RD->getName().empty()) |
2308 | return false; |
2309 | if (auto *CXXDecl = dyn_cast<CXXRecordDecl>(RD)) { |
2310 | if (!CXXDecl->isCompleteDefinition()) |
2311 | return false; |
2312 | |
2313 | auto TemplateKind = CXXDecl->getTemplateSpecializationKind(); |
2314 | if (TemplateKind != TSK_Undeclared) { |
2315 | |
2316 | |
2317 | |
2318 | bool Explicit = false; |
2319 | if (auto *TD = dyn_cast<ClassTemplateSpecializationDecl>(CXXDecl)) |
2320 | Explicit = TD->isExplicitInstantiationOrSpecialization(); |
2321 | if (!Explicit && CXXDecl->getEnclosingNamespaceContext()) |
2322 | return false; |
2323 | |
2324 | if (CXXDecl->field_begin() == CXXDecl->field_end()) |
2325 | return TemplateKind == TSK_ExplicitInstantiationDeclaration; |
2326 | if (!CXXDecl->field_begin()->isFromASTFile()) |
2327 | return false; |
2328 | } |
2329 | } |
2330 | return true; |
2331 | } |
2332 | |
2333 | void CGDebugInfo::completeClassData(const RecordDecl *RD) { |
2334 | if (auto *CXXRD = dyn_cast<CXXRecordDecl>(RD)) |
2335 | if (CXXRD->isDynamicClass() && |
2336 | CGM.getVTableLinkage(CXXRD) == |
2337 | llvm::GlobalValue::AvailableExternallyLinkage && |
2338 | !isClassOrMethodDLLImport(CXXRD)) |
2339 | return; |
2340 | |
2341 | if (DebugTypeExtRefs && isDefinedInClangModule(RD->getDefinition())) |
2342 | return; |
2343 | |
2344 | completeClass(RD); |
2345 | } |
2346 | |
2347 | void CGDebugInfo::completeClass(const RecordDecl *RD) { |
2348 | if (DebugKind <= codegenoptions::DebugLineTablesOnly) |
2349 | return; |
2350 | QualType Ty = CGM.getContext().getRecordType(RD); |
2351 | void *TyPtr = Ty.getAsOpaquePtr(); |
2352 | auto I = TypeCache.find(TyPtr); |
2353 | if (I != TypeCache.end() && !cast<llvm::DIType>(I->second)->isForwardDecl()) |
2354 | return; |
2355 | llvm::DIType *Res = CreateTypeDefinition(Ty->castAs<RecordType>()); |
2356 | assert(!Res->isForwardDecl()); |
2357 | TypeCache[TyPtr].reset(Res); |
2358 | } |
2359 | |
2360 | static bool hasExplicitMemberDefinition(CXXRecordDecl::method_iterator I, |
2361 | CXXRecordDecl::method_iterator End) { |
2362 | for (CXXMethodDecl *MD : llvm::make_range(I, End)) |
2363 | if (FunctionDecl *Tmpl = MD->getInstantiatedFromMemberFunction()) |
2364 | if (!Tmpl->isImplicit() && Tmpl->isThisDeclarationADefinition() && |
2365 | !MD->getMemberSpecializationInfo()->isExplicitSpecialization()) |
2366 | return true; |
2367 | return false; |
2368 | } |
2369 | |
2370 | static bool canUseCtorHoming(const CXXRecordDecl *RD) { |
2371 | |
2372 | |
2373 | |
2374 | |
2375 | |
2376 | |
2377 | |
2378 | |
2379 | if (isClassOrMethodDLLImport(RD)) |
2380 | return false; |
2381 | |
2382 | return !RD->isLambda() && !RD->isAggregate() && |
2383 | !RD->hasTrivialDefaultConstructor() && |
2384 | !RD->hasConstexprNonCopyMoveConstructor(); |
2385 | } |
2386 | |
2387 | static bool shouldOmitDefinition(codegenoptions::DebugInfoKind DebugKind, |
2388 | bool DebugTypeExtRefs, const RecordDecl *RD, |
2389 | const LangOptions &LangOpts) { |
2390 | if (DebugTypeExtRefs && isDefinedInClangModule(RD->getDefinition())) |
2391 | return true; |
2392 | |
2393 | if (auto *ES = RD->getASTContext().getExternalSource()) |
2394 | if (ES->hasExternalDefinitions(RD) == ExternalASTSource::EK_Always) |
2395 | return true; |
2396 | |
2397 | |
2398 | |
2399 | |
2400 | if (DebugKind == codegenoptions::DebugLineTablesOnly) |
2401 | return true; |
2402 | |
2403 | if (DebugKind > codegenoptions::LimitedDebugInfo || |
2404 | RD->hasAttr<StandaloneDebugAttr>()) |
2405 | return false; |
2406 | |
2407 | if (!LangOpts.CPlusPlus) |
2408 | return false; |
2409 | |
2410 | if (!RD->isCompleteDefinitionRequired()) |
2411 | return true; |
2412 | |
2413 | const auto *CXXDecl = dyn_cast<CXXRecordDecl>(RD); |
2414 | |
2415 | if (!CXXDecl) |
2416 | return false; |
2417 | |
2418 | |
2419 | |
2420 | |
2421 | |
2422 | |
2423 | |
2424 | if (CXXDecl->hasDefinition() && CXXDecl->isDynamicClass() && |
2425 | !isClassOrMethodDLLImport(CXXDecl)) |
2426 | return true; |
2427 | |
2428 | TemplateSpecializationKind Spec = TSK_Undeclared; |
2429 | if (const auto *SD = dyn_cast<ClassTemplateSpecializationDecl>(RD)) |
2430 | Spec = SD->getSpecializationKind(); |
2431 | |
2432 | if (Spec == TSK_ExplicitInstantiationDeclaration && |
2433 | hasExplicitMemberDefinition(CXXDecl->method_begin(), |
2434 | CXXDecl->method_end())) |
2435 | return true; |
2436 | |
2437 | |
2438 | |
2439 | if ((DebugKind == codegenoptions::DebugInfoConstructor) && |
2440 | canUseCtorHoming(CXXDecl)) |
2441 | return true; |
2442 | |
2443 | return false; |
2444 | } |
2445 | |
2446 | void CGDebugInfo::completeRequiredType(const RecordDecl *RD) { |
2447 | if (shouldOmitDefinition(DebugKind, DebugTypeExtRefs, RD, CGM.getLangOpts())) |
2448 | return; |
2449 | |
2450 | QualType Ty = CGM.getContext().getRecordType(RD); |
2451 | llvm::DIType *T = getTypeOrNull(Ty); |
2452 | if (T && T->isForwardDecl()) |
2453 | completeClassData(RD); |
2454 | } |
2455 | |
2456 | llvm::DIType *CGDebugInfo::CreateType(const RecordType *Ty) { |
2457 | RecordDecl *RD = Ty->getDecl(); |
2458 | llvm::DIType *T = cast_or_null<llvm::DIType>(getTypeOrNull(QualType(Ty, 0))); |
2459 | if (T || shouldOmitDefinition(DebugKind, DebugTypeExtRefs, RD, |
2460 | CGM.getLangOpts())) { |
2461 | if (!T) |
2462 | T = getOrCreateRecordFwdDecl(Ty, getDeclContextDescriptor(RD)); |
2463 | return T; |
2464 | } |
2465 | |
2466 | return CreateTypeDefinition(Ty); |
2467 | } |
2468 | |
2469 | llvm::DIType *CGDebugInfo::CreateTypeDefinition(const RecordType *Ty) { |
2470 | RecordDecl *RD = Ty->getDecl(); |
2471 | |
2472 | |
2473 | llvm::DIFile *DefUnit = getOrCreateFile(RD->getLocation()); |
2474 | |
2475 | |
2476 | |
2477 | |
2478 | |
2479 | |
2480 | |
2481 | llvm::DICompositeType *FwdDecl = getOrCreateLimitedType(Ty); |
2482 | |
2483 | const RecordDecl *D = RD->getDefinition(); |
2484 | if (!D || !D->isCompleteDefinition()) |
2485 | return FwdDecl; |
2486 | |
2487 | if (const auto *CXXDecl = dyn_cast<CXXRecordDecl>(RD)) |
2488 | CollectContainingType(CXXDecl, FwdDecl); |
2489 | |
2490 | |
2491 | LexicalBlockStack.emplace_back(&*FwdDecl); |
2492 | RegionMap[Ty->getDecl()].reset(FwdDecl); |
2493 | |
2494 | |
2495 | SmallVector<llvm::Metadata *, 16> EltTys; |
2496 | |
2497 | |
2498 | |
2499 | |
2500 | |
2501 | |
2502 | const auto *CXXDecl = dyn_cast<CXXRecordDecl>(RD); |
2503 | if (CXXDecl) { |
2504 | CollectCXXBases(CXXDecl, DefUnit, EltTys, FwdDecl); |
2505 | CollectVTableInfo(CXXDecl, DefUnit, EltTys); |
2506 | } |
2507 | |
2508 | |
2509 | CollectRecordFields(RD, DefUnit, EltTys, FwdDecl); |
2510 | if (CXXDecl) |
2511 | CollectCXXMemberFunctions(CXXDecl, DefUnit, EltTys, FwdDecl); |
2512 | |
2513 | LexicalBlockStack.pop_back(); |
2514 | RegionMap.erase(Ty->getDecl()); |
2515 | |
2516 | llvm::DINodeArray Elements = DBuilder.getOrCreateArray(EltTys); |
2517 | DBuilder.replaceArrays(FwdDecl, Elements); |
2518 | |
2519 | if (FwdDecl->isTemporary()) |
2520 | FwdDecl = |
2521 | llvm::MDNode::replaceWithPermanent(llvm::TempDICompositeType(FwdDecl)); |
2522 | |
2523 | RegionMap[Ty->getDecl()].reset(FwdDecl); |
2524 | return FwdDecl; |
2525 | } |
2526 | |
2527 | llvm::DIType *CGDebugInfo::CreateType(const ObjCObjectType *Ty, |
2528 | llvm::DIFile *Unit) { |
2529 | |
2530 | return getOrCreateType(Ty->getBaseType(), Unit); |
2531 | } |
2532 | |
2533 | llvm::DIType *CGDebugInfo::CreateType(const ObjCTypeParamType *Ty, |
2534 | llvm::DIFile *Unit) { |
2535 | |
2536 | SourceLocation Loc = Ty->getDecl()->getLocation(); |
2537 | |
2538 | |
2539 | return DBuilder.createTypedef( |
2540 | getOrCreateType(Ty->getDecl()->getUnderlyingType(), Unit), |
2541 | Ty->getDecl()->getName(), getOrCreateFile(Loc), getLineNumber(Loc), |
2542 | getDeclContextDescriptor(Ty->getDecl())); |
2543 | } |
2544 | |
2545 | |
2546 | static bool hasDefaultGetterName(const ObjCPropertyDecl *PD, |
2547 | const ObjCMethodDecl *Getter) { |
2548 | assert(PD); |
2549 | if (!Getter) |
2550 | return true; |
2551 | |
2552 | assert(Getter->getDeclName().isObjCZeroArgSelector()); |
2553 | return PD->getName() == |
2554 | Getter->getDeclName().getObjCSelector().getNameForSlot(0); |
2555 | } |
2556 | |
2557 | |
2558 | static bool hasDefaultSetterName(const ObjCPropertyDecl *PD, |
2559 | const ObjCMethodDecl *Setter) { |
2560 | assert(PD); |
2561 | if (!Setter) |
2562 | return true; |
2563 | |
2564 | assert(Setter->getDeclName().isObjCOneArgSelector()); |
2565 | return SelectorTable::constructSetterName(PD->getName()) == |
2566 | Setter->getDeclName().getObjCSelector().getNameForSlot(0); |
2567 | } |
2568 | |
2569 | llvm::DIType *CGDebugInfo::CreateType(const ObjCInterfaceType *Ty, |
2570 | llvm::DIFile *Unit) { |
2571 | ObjCInterfaceDecl *ID = Ty->getDecl(); |
2572 | if (!ID) |
2573 | return nullptr; |
2574 | |
2575 | |
2576 | |
2577 | |
2578 | if (DebugTypeExtRefs && ID->isFromASTFile() && ID->getDefinition() && |
2579 | !ID->getImplementation()) |
2580 | return DBuilder.createForwardDecl(llvm::dwarf::DW_TAG_structure_type, |
2581 | ID->getName(), |
2582 | getDeclContextDescriptor(ID), Unit, 0); |
2583 | |
2584 | |
2585 | llvm::DIFile *DefUnit = getOrCreateFile(ID->getLocation()); |
2586 | unsigned Line = getLineNumber(ID->getLocation()); |
2587 | auto RuntimeLang = |
2588 | static_cast<llvm::dwarf::SourceLanguage>(TheCU->getSourceLanguage()); |
2589 | |
2590 | |
2591 | |
2592 | ObjCInterfaceDecl *Def = ID->getDefinition(); |
2593 | if (!Def || !Def->getImplementation()) { |
2594 | llvm::DIScope *Mod = getParentModuleOrNull(ID); |
2595 | llvm::DIType *FwdDecl = DBuilder.createReplaceableCompositeType( |
2596 | llvm::dwarf::DW_TAG_structure_type, ID->getName(), Mod ? Mod : TheCU, |
2597 | DefUnit, Line, RuntimeLang); |
2598 | ObjCInterfaceCache.push_back(ObjCInterfaceCacheEntry(Ty, FwdDecl, Unit)); |
2599 | return FwdDecl; |
2600 | } |
2601 | |
2602 | return CreateTypeDefinition(Ty, Unit); |
2603 | } |
2604 | |
2605 | llvm::DIModule *CGDebugInfo::getOrCreateModuleRef(ASTSourceDescriptor Mod, |
2606 | bool CreateSkeletonCU) { |
2607 | |
2608 | |
2609 | |
2610 | const Module *M = Mod.getModuleOrNull(); |
2611 | auto ModRef = ModuleCache.find(M); |
2612 | if (ModRef != ModuleCache.end()) |
2613 | return cast<llvm::DIModule>(ModRef->second); |
2614 | |
2615 | |
2616 | SmallString<128> ConfigMacros; |
2617 | { |
2618 | llvm::raw_svector_ostream OS(ConfigMacros); |
2619 | const auto &PPOpts = CGM.getPreprocessorOpts(); |
2620 | unsigned I = 0; |
2621 | |
2622 | for (auto &M : PPOpts.Macros) { |
2623 | if (++I > 1) |
2624 | OS << " "; |
2625 | const std::string &Macro = M.first; |
2626 | bool Undef = M.second; |
2627 | OS << "\"-" << (Undef ? 'U' : 'D'); |
2628 | for (char c : Macro) |
2629 | switch (c) { |
2630 | case '\\': |
2631 | OS << "\\\\"; |
2632 | break; |
2633 | case '"': |
2634 | OS << "\\\""; |
2635 | break; |
2636 | default: |
2637 | OS << c; |
2638 | } |
2639 | OS << '\"'; |
2640 | } |
2641 | } |
2642 | |
2643 | bool IsRootModule = M ? !M->Parent : true; |
2644 | |
2645 | |
2646 | |
2647 | if (CreateSkeletonCU && IsRootModule && Mod.getASTFile().empty() && M) |
2648 | assert(StringRef(M->Name).startswith(CGM.getLangOpts().ModuleName) && |
2649 | "clang module without ASTFile must be specified by -fmodule-name"); |
2650 | |
2651 | |
2652 | auto RemapPath = [this](StringRef Path) -> std::string { |
2653 | std::string Remapped = remapDIPath(Path); |
2654 | StringRef Relative(Remapped); |
2655 | StringRef CompDir = TheCU->getDirectory(); |
2656 | if (Relative.consume_front(CompDir)) |
2657 | Relative.consume_front(llvm::sys::path::get_separator()); |
2658 | |
2659 | return Relative.str(); |
2660 | }; |
2661 | |
2662 | if (CreateSkeletonCU && IsRootModule && !Mod.getASTFile().empty()) { |
2663 | |
2664 | |
2665 | |
2666 | |
2667 | uint64_t Signature = 0; |
2668 | if (const auto &ModSig = Mod.getSignature()) |
2669 | Signature = ModSig.truncatedValue(); |
2670 | else |
2671 | Signature = ~1ULL; |
2672 | |
2673 | llvm::DIBuilder DIB(CGM.getModule()); |
2674 | SmallString<0> PCM; |
2675 | if (!llvm::sys::path::is_absolute(Mod.getASTFile())) |
2676 | PCM = Mod.getPath(); |
2677 | llvm::sys::path::append(PCM, Mod.getASTFile()); |
2678 | DIB.createCompileUnit( |
2679 | TheCU->getSourceLanguage(), |
2680 | |
2681 | DIB.createFile(Mod.getModuleName(), TheCU->getDirectory()), |
2682 | TheCU->getProducer(), false, StringRef(), 0, RemapPath(PCM), |
2683 | llvm::DICompileUnit::FullDebug, Signature); |
2684 | DIB.finalize(); |
2685 | } |
2686 | |
2687 | llvm::DIModule *Parent = |
2688 | IsRootModule ? nullptr |
2689 | : getOrCreateModuleRef(ASTSourceDescriptor(*M->Parent), |
2690 | CreateSkeletonCU); |
2691 | std::string IncludePath = Mod.getPath().str(); |
2692 | llvm::DIModule *DIMod = |
2693 | DBuilder.createModule(Parent, Mod.getModuleName(), ConfigMacros, |
2694 | RemapPath(IncludePath)); |
2695 | ModuleCache[M].reset(DIMod); |
2696 | return DIMod; |
2697 | } |
2698 | |
2699 | llvm::DIType *CGDebugInfo::CreateTypeDefinition(const ObjCInterfaceType *Ty, |
2700 | llvm::DIFile *Unit) { |
2701 | ObjCInterfaceDecl *ID = Ty->getDecl(); |
2702 | llvm::DIFile *DefUnit = getOrCreateFile(ID->getLocation()); |
2703 | unsigned Line = getLineNumber(ID->getLocation()); |
2704 | unsigned RuntimeLang = TheCU->getSourceLanguage(); |
2705 | |
2706 | |
2707 | uint64_t Size = CGM.getContext().getTypeSize(Ty); |
2708 | auto Align = getTypeAlignIfRequired(Ty, CGM.getContext()); |
2709 | |
2710 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
2711 | if (ID->getImplementation()) |
2712 | Flags |= llvm::DINode::FlagObjcClassComplete; |
2713 | |
2714 | llvm::DIScope *Mod = getParentModuleOrNull(ID); |
2715 | llvm::DICompositeType *RealDecl = DBuilder.createStructType( |
2716 | Mod ? Mod : Unit, ID->getName(), DefUnit, Line, Size, Align, Flags, |
2717 | nullptr, llvm::DINodeArray(), RuntimeLang); |
2718 | |
2719 | QualType QTy(Ty, 0); |
2720 | TypeCache[QTy.getAsOpaquePtr()].reset(RealDecl); |
2721 | |
2722 | |
2723 | LexicalBlockStack.emplace_back(RealDecl); |
2724 | RegionMap[Ty->getDecl()].reset(RealDecl); |
2725 | |
2726 | |
2727 | SmallVector<llvm::Metadata *, 16> EltTys; |
2728 | |
2729 | ObjCInterfaceDecl *SClass = ID->getSuperClass(); |
2730 | if (SClass) { |
2731 | llvm::DIType *SClassTy = |
2732 | getOrCreateType(CGM.getContext().getObjCInterfaceType(SClass), Unit); |
2733 | if (!SClassTy) |
2734 | return nullptr; |
2735 | |
2736 | llvm::DIType *InhTag = DBuilder.createInheritance(RealDecl, SClassTy, 0, 0, |
2737 | llvm::DINode::FlagZero); |
2738 | EltTys.push_back(InhTag); |
2739 | } |
2740 | |
2741 | |
2742 | auto AddProperty = [&](const ObjCPropertyDecl *PD) { |
2743 | SourceLocation Loc = PD->getLocation(); |
2744 | llvm::DIFile *PUnit = getOrCreateFile(Loc); |
2745 | unsigned PLine = getLineNumber(Loc); |
2746 | ObjCMethodDecl *Getter = PD->getGetterMethodDecl(); |
2747 | ObjCMethodDecl *Setter = PD->getSetterMethodDecl(); |
2748 | llvm::MDNode *PropertyNode = DBuilder.createObjCProperty( |
2749 | PD->getName(), PUnit, PLine, |
2750 | hasDefaultGetterName(PD, Getter) ? "" |
2751 | : getSelectorName(PD->getGetterName()), |
2752 | hasDefaultSetterName(PD, Setter) ? "" |
2753 | : getSelectorName(PD->getSetterName()), |
2754 | PD->getPropertyAttributes(), getOrCreateType(PD->getType(), PUnit)); |
2755 | EltTys.push_back(PropertyNode); |
2756 | }; |
2757 | { |
2758 | |
2759 | |
2760 | typedef std::pair<char, const IdentifierInfo *> IsClassAndIdent; |
2761 | |
2762 | |
2763 | |
2764 | llvm::DenseSet<IsClassAndIdent> PropertySet; |
2765 | |
2766 | auto GetIsClassAndIdent = [](const ObjCPropertyDecl *PD) { |
2767 | return std::make_pair(PD->isClassProperty(), PD->getIdentifier()); |
2768 | }; |
2769 | for (const ObjCCategoryDecl *ClassExt : ID->known_extensions()) |
2770 | for (auto *PD : ClassExt->properties()) { |
2771 | PropertySet.insert(GetIsClassAndIdent(PD)); |
2772 | AddProperty(PD); |
2773 | } |
2774 | for (const auto *PD : ID->properties()) { |
2775 | |
2776 | |
2777 | if (!PropertySet.insert(GetIsClassAndIdent(PD)).second) |
2778 | continue; |
2779 | AddProperty(PD); |
2780 | } |
2781 | } |
2782 | |
2783 | const ASTRecordLayout &RL = CGM.getContext().getASTObjCInterfaceLayout(ID); |
2784 | unsigned FieldNo = 0; |
2785 | for (ObjCIvarDecl *Field = ID->all_declared_ivar_begin(); Field; |
2786 | Field = Field->getNextIvar(), ++FieldNo) { |
2787 | llvm::DIType *FieldTy = getOrCreateType(Field->getType(), Unit); |
2788 | if (!FieldTy) |
2789 | return nullptr; |
2790 | |
2791 | StringRef FieldName = Field->getName(); |
2792 | |
2793 | |
2794 | if (FieldName.empty()) |
2795 | continue; |
2796 | |
2797 | |
2798 | llvm::DIFile *FieldDefUnit = getOrCreateFile(Field->getLocation()); |
2799 | unsigned FieldLine = getLineNumber(Field->getLocation()); |
2800 | QualType FType = Field->getType(); |
2801 | uint64_t FieldSize = 0; |
2802 | uint32_t FieldAlign = 0; |
2803 | |
2804 | if (!FType->isIncompleteArrayType()) { |
2805 | |
2806 | |
2807 | FieldSize = Field->isBitField() |
2808 | ? Field->getBitWidthValue(CGM.getContext()) |
2809 | : CGM.getContext().getTypeSize(FType); |
2810 | FieldAlign = getTypeAlignIfRequired(FType, CGM.getContext()); |
2811 | } |
2812 | |
2813 | uint64_t FieldOffset; |
2814 | if (CGM.getLangOpts().ObjCRuntime.isNonFragile()) { |
2815 | |
2816 | |
2817 | |
2818 | if (Field->isBitField()) { |
2819 | FieldOffset = |
2820 | CGM.getObjCRuntime().ComputeBitfieldBitOffset(CGM, ID, Field); |
2821 | FieldOffset %= CGM.getContext().getCharWidth(); |
2822 | } else { |
2823 | FieldOffset = 0; |
2824 | } |
2825 | } else { |
2826 | FieldOffset = RL.getFieldOffset(FieldNo); |
2827 | } |
2828 | |
2829 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
2830 | if (Field->getAccessControl() == ObjCIvarDecl::Protected) |
2831 | Flags = llvm::DINode::FlagProtected; |
2832 | else if (Field->getAccessControl() == ObjCIvarDecl::Private) |
2833 | Flags = llvm::DINode::FlagPrivate; |
2834 | else if (Field->getAccessControl() == ObjCIvarDecl::Public) |
2835 | Flags = llvm::DINode::FlagPublic; |
2836 | |
2837 | llvm::MDNode *PropertyNode = nullptr; |
2838 | if (ObjCImplementationDecl *ImpD = ID->getImplementation()) { |
2839 | if (ObjCPropertyImplDecl *PImpD = |
2840 | ImpD->FindPropertyImplIvarDecl(Field->getIdentifier())) { |
2841 | if (ObjCPropertyDecl *PD = PImpD->getPropertyDecl()) { |
2842 | SourceLocation Loc = PD->getLocation(); |
2843 | llvm::DIFile *PUnit = getOrCreateFile(Loc); |
2844 | unsigned PLine = getLineNumber(Loc); |
2845 | ObjCMethodDecl *Getter = PImpD->getGetterMethodDecl(); |
2846 | ObjCMethodDecl *Setter = PImpD->getSetterMethodDecl(); |
2847 | PropertyNode = DBuilder.createObjCProperty( |
2848 | PD->getName(), PUnit, PLine, |
2849 | hasDefaultGetterName(PD, Getter) |
2850 | ? "" |
2851 | : getSelectorName(PD->getGetterName()), |
2852 | hasDefaultSetterName(PD, Setter) |
2853 | ? "" |
2854 | : getSelectorName(PD->getSetterName()), |
2855 | PD->getPropertyAttributes(), |
2856 | getOrCreateType(PD->getType(), PUnit)); |
2857 | } |
2858 | } |
2859 | } |
2860 | FieldTy = DBuilder.createObjCIVar(FieldName, FieldDefUnit, FieldLine, |
2861 | FieldSize, FieldAlign, FieldOffset, Flags, |
2862 | FieldTy, PropertyNode); |
2863 | EltTys.push_back(FieldTy); |
2864 | } |
2865 | |
2866 | llvm::DINodeArray Elements = DBuilder.getOrCreateArray(EltTys); |
2867 | DBuilder.replaceArrays(RealDecl, Elements); |
2868 | |
2869 | LexicalBlockStack.pop_back(); |
2870 | return RealDecl; |
2871 | } |
2872 | |
2873 | llvm::DIType *CGDebugInfo::CreateType(const VectorType *Ty, |
2874 | llvm::DIFile *Unit) { |
2875 | llvm::DIType *ElementTy = getOrCreateType(Ty->getElementType(), Unit); |
2876 | int64_t Count = Ty->getNumElements(); |
2877 | |
2878 | llvm::Metadata *Subscript; |
2879 | QualType QTy(Ty, 0); |
2880 | auto SizeExpr = SizeExprCache.find(QTy); |
2881 | if (SizeExpr != SizeExprCache.end()) |
2882 | Subscript = DBuilder.getOrCreateSubrange( |
2883 | SizeExpr->getSecond() , nullptr , |
2884 | nullptr , nullptr ); |
2885 | else { |
2886 | auto *CountNode = |
2887 | llvm::ConstantAsMetadata::get(llvm::ConstantInt::getSigned( |
2888 | llvm::Type::getInt64Ty(CGM.getLLVMContext()), Count ? Count : -1)); |
2889 | Subscript = DBuilder.getOrCreateSubrange( |
2890 | CountNode , nullptr , nullptr , |
2891 | nullptr ); |
2892 | } |
2893 | llvm::DINodeArray SubscriptArray = DBuilder.getOrCreateArray(Subscript); |
2894 | |
2895 | uint64_t Size = CGM.getContext().getTypeSize(Ty); |
2896 | auto Align = getTypeAlignIfRequired(Ty, CGM.getContext()); |
2897 | |
2898 | return DBuilder.createVectorType(Size, Align, ElementTy, SubscriptArray); |
2899 | } |
2900 | |
2901 | llvm::DIType *CGDebugInfo::CreateType(const ConstantMatrixType *Ty, |
2902 | llvm::DIFile *Unit) { |
2903 | |
2904 | |
2905 | |
2906 | llvm::DIType *ElementTy = getOrCreateType(Ty->getElementType(), Unit); |
2907 | uint64_t Size = CGM.getContext().getTypeSize(Ty); |
2908 | uint32_t Align = getTypeAlignIfRequired(Ty, CGM.getContext()); |
2909 | |
2910 | |
2911 | llvm::SmallVector<llvm::Metadata *, 2> Subscripts; |
2912 | auto *ColumnCountNode = |
2913 | llvm::ConstantAsMetadata::get(llvm::ConstantInt::getSigned( |
2914 | llvm::Type::getInt64Ty(CGM.getLLVMContext()), Ty->getNumColumns())); |
2915 | auto *RowCountNode = |
2916 | llvm::ConstantAsMetadata::get(llvm::ConstantInt::getSigned( |
2917 | llvm::Type::getInt64Ty(CGM.getLLVMContext()), Ty->getNumRows())); |
2918 | Subscripts.push_back(DBuilder.getOrCreateSubrange( |
2919 | ColumnCountNode , nullptr , nullptr , |
2920 | nullptr )); |
2921 | Subscripts.push_back(DBuilder.getOrCreateSubrange( |
2922 | RowCountNode , nullptr , nullptr , |
2923 | nullptr )); |
2924 | llvm::DINodeArray SubscriptArray = DBuilder.getOrCreateArray(Subscripts); |
2925 | return DBuilder.createArrayType(Size, Align, ElementTy, SubscriptArray); |
2926 | } |
2927 | |
2928 | llvm::DIType *CGDebugInfo::CreateType(const ArrayType *Ty, llvm::DIFile *Unit) { |
2929 | uint64_t Size; |
2930 | uint32_t Align; |
2931 | |
2932 | |
2933 | if (const auto *VAT = dyn_cast<VariableArrayType>(Ty)) { |
2934 | Size = 0; |
2935 | Align = getTypeAlignIfRequired(CGM.getContext().getBaseElementType(VAT), |
2936 | CGM.getContext()); |
2937 | } else if (Ty->isIncompleteArrayType()) { |
2938 | Size = 0; |
2939 | if (Ty->getElementType()->isIncompleteType()) |
2940 | Align = 0; |
2941 | else |
2942 | Align = getTypeAlignIfRequired(Ty->getElementType(), CGM.getContext()); |
2943 | } else if (Ty->isIncompleteType()) { |
2944 | Size = 0; |
2945 | Align = 0; |
2946 | } else { |
2947 | |
2948 | Size = CGM.getContext().getTypeSize(Ty); |
2949 | Align = getTypeAlignIfRequired(Ty, CGM.getContext()); |
2950 | } |
2951 | |
2952 | |
2953 | |
2954 | |
2955 | SmallVector<llvm::Metadata *, 8> Subscripts; |
2956 | QualType EltTy(Ty, 0); |
2957 | while ((Ty = dyn_cast<ArrayType>(EltTy))) { |
2958 | |
2959 | |
2960 | |
2961 | |
2962 | |
2963 | |
2964 | |
2965 | int64_t Count = -1; |
2966 | if (const auto *CAT = dyn_cast<ConstantArrayType>(Ty)) |
2967 | Count = CAT->getSize().getZExtValue(); |
2968 | else if (const auto *VAT = dyn_cast<VariableArrayType>(Ty)) { |
2969 | if (Expr *Size = VAT->getSizeExpr()) { |
2970 | Expr::EvalResult Result; |
2971 | if (Size->EvaluateAsInt(Result, CGM.getContext())) |
2972 | Count = Result.Val.getInt().getExtValue(); |
2973 | } |
2974 | } |
2975 | |
2976 | auto SizeNode = SizeExprCache.find(EltTy); |
2977 | if (SizeNode != SizeExprCache.end()) |
2978 | Subscripts.push_back(DBuilder.getOrCreateSubrange( |
2979 | SizeNode->getSecond() , nullptr , |
2980 | nullptr , nullptr )); |
2981 | else { |
2982 | auto *CountNode = |
2983 | llvm::ConstantAsMetadata::get(llvm::ConstantInt::getSigned( |
2984 | llvm::Type::getInt64Ty(CGM.getLLVMContext()), Count)); |
2985 | Subscripts.push_back(DBuilder.getOrCreateSubrange( |
2986 | CountNode , nullptr , nullptr , |
2987 | nullptr )); |
2988 | } |
2989 | EltTy = Ty->getElementType(); |
2990 | } |
2991 | |
2992 | llvm::DINodeArray SubscriptArray = DBuilder.getOrCreateArray(Subscripts); |
2993 | |
2994 | return DBuilder.createArrayType(Size, Align, getOrCreateType(EltTy, Unit), |
2995 | SubscriptArray); |
2996 | } |
2997 | |
2998 | llvm::DIType *CGDebugInfo::CreateType(const LValueReferenceType *Ty, |
2999 | llvm::DIFile *Unit) { |
3000 | return CreatePointerLikeType(llvm::dwarf::DW_TAG_reference_type, Ty, |
3001 | Ty->getPointeeType(), Unit); |
3002 | } |
3003 | |
3004 | llvm::DIType *CGDebugInfo::CreateType(const RValueReferenceType *Ty, |
3005 | llvm::DIFile *Unit) { |
3006 | llvm::dwarf::Tag Tag = llvm::dwarf::DW_TAG_rvalue_reference_type; |
3007 | |
3008 | if (CGM.getCodeGenOpts().DebugStrictDwarf && |
3009 | CGM.getCodeGenOpts().DwarfVersion < 4) |
3010 | Tag = llvm::dwarf::DW_TAG_reference_type; |
3011 | |
3012 | return CreatePointerLikeType(Tag, Ty, Ty->getPointeeType(), Unit); |
3013 | } |
3014 | |
3015 | llvm::DIType *CGDebugInfo::CreateType(const MemberPointerType *Ty, |
3016 | llvm::DIFile *U) { |
3017 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
3018 | uint64_t Size = 0; |
3019 | |
3020 | if (!Ty->isIncompleteType()) { |
3021 | Size = CGM.getContext().getTypeSize(Ty); |
3022 | |
3023 | |
3024 | if (CGM.getTarget().getCXXABI().isMicrosoft()) { |
3025 | switch (Ty->getMostRecentCXXRecordDecl()->getMSInheritanceModel()) { |
3026 | case MSInheritanceModel::Single: |
3027 | Flags |= llvm::DINode::FlagSingleInheritance; |
3028 | break; |
3029 | case MSInheritanceModel::Multiple: |
3030 | Flags |= llvm::DINode::FlagMultipleInheritance; |
3031 | break; |
3032 | case MSInheritanceModel::Virtual: |
3033 | Flags |= llvm::DINode::FlagVirtualInheritance; |
3034 | break; |
3035 | case MSInheritanceModel::Unspecified: |
3036 | break; |
3037 | } |
3038 | } |
3039 | } |
3040 | |
3041 | llvm::DIType *ClassType = getOrCreateType(QualType(Ty->getClass(), 0), U); |
3042 | if (Ty->isMemberDataPointerType()) |
3043 | return DBuilder.createMemberPointerType( |
3044 | getOrCreateType(Ty->getPointeeType(), U), ClassType, Size, 0, |
3045 | Flags); |
3046 | |
3047 | const FunctionProtoType *FPT = |
3048 | Ty->getPointeeType()->getAs<FunctionProtoType>(); |
3049 | return DBuilder.createMemberPointerType( |
3050 | getOrCreateInstanceMethodType( |
3051 | CXXMethodDecl::getThisType(FPT, Ty->getMostRecentCXXRecordDecl()), |
3052 | FPT, U, false), |
3053 | ClassType, Size, 0, Flags); |
3054 | } |
3055 | |
3056 | llvm::DIType *CGDebugInfo::CreateType(const AtomicType *Ty, llvm::DIFile *U) { |
3057 | auto *FromTy = getOrCreateType(Ty->getValueType(), U); |
3058 | return DBuilder.createQualifiedType(llvm::dwarf::DW_TAG_atomic_type, FromTy); |
3059 | } |
3060 | |
3061 | llvm::DIType *CGDebugInfo::CreateType(const PipeType *Ty, llvm::DIFile *U) { |
3062 | return getOrCreateType(Ty->getElementType(), U); |
3063 | } |
3064 | |
3065 | llvm::DIType *CGDebugInfo::CreateEnumType(const EnumType *Ty) { |
3066 | const EnumDecl *ED = Ty->getDecl(); |
3067 | |
3068 | uint64_t Size = 0; |
3069 | uint32_t Align = 0; |
3070 | if (!ED->getTypeForDecl()->isIncompleteType()) { |
3071 | Size = CGM.getContext().getTypeSize(ED->getTypeForDecl()); |
3072 | Align = getDeclAlignIfRequired(ED, CGM.getContext()); |
3073 | } |
3074 | |
3075 | SmallString<256> Identifier = getTypeIdentifier(Ty, CGM, TheCU); |
3076 | |
3077 | bool isImportedFromModule = |
3078 | DebugTypeExtRefs && ED->isFromASTFile() && ED->getDefinition(); |
3079 | |
3080 | |
3081 | |
3082 | if (isImportedFromModule || !ED->getDefinition()) { |
3083 | |
3084 | |
3085 | |
3086 | |
3087 | |
3088 | |
3089 | llvm::DIScope *EDContext = getDeclContextDescriptor(ED); |
3090 | llvm::DIFile *DefUnit = getOrCreateFile(ED->getLocation()); |
3091 | llvm::TempDIScope TmpContext(DBuilder.createReplaceableCompositeType( |
3092 | llvm::dwarf::DW_TAG_enumeration_type, "", TheCU, DefUnit, 0)); |
3093 | |
3094 | unsigned Line = getLineNumber(ED->getLocation()); |
3095 | StringRef EDName = ED->getName(); |
3096 | llvm::DIType *RetTy = DBuilder.createReplaceableCompositeType( |
3097 | llvm::dwarf::DW_TAG_enumeration_type, EDName, EDContext, DefUnit, Line, |
3098 | 0, Size, Align, llvm::DINode::FlagFwdDecl, Identifier); |
3099 | |
3100 | ReplaceMap.emplace_back( |
3101 | std::piecewise_construct, std::make_tuple(Ty), |
3102 | std::make_tuple(static_cast<llvm::Metadata *>(RetTy))); |
3103 | return RetTy; |
3104 | } |
3105 | |
3106 | return CreateTypeDefinition(Ty); |
3107 | } |
3108 | |
3109 | llvm::DIType *CGDebugInfo::CreateTypeDefinition(const EnumType *Ty) { |
3110 | const EnumDecl *ED = Ty->getDecl(); |
3111 | uint64_t Size = 0; |
3112 | uint32_t Align = 0; |
3113 | if (!ED->getTypeForDecl()->isIncompleteType()) { |
3114 | Size = CGM.getContext().getTypeSize(ED->getTypeForDecl()); |
3115 | Align = getDeclAlignIfRequired(ED, CGM.getContext()); |
3116 | } |
3117 | |
3118 | SmallString<256> Identifier = getTypeIdentifier(Ty, CGM, TheCU); |
3119 | |
3120 | SmallVector<llvm::Metadata *, 16> Enumerators; |
3121 | ED = ED->getDefinition(); |
3122 | for (const auto *Enum : ED->enumerators()) { |
3123 | Enumerators.push_back( |
3124 | DBuilder.createEnumerator(Enum->getName(), Enum->getInitVal())); |
3125 | } |
3126 | |
3127 | |
3128 | llvm::DINodeArray EltArray = DBuilder.getOrCreateArray(Enumerators); |
3129 | |
3130 | llvm::DIFile *DefUnit = getOrCreateFile(ED->getLocation()); |
3131 | unsigned Line = getLineNumber(ED->getLocation()); |
3132 | llvm::DIScope *EnumContext = getDeclContextDescriptor(ED); |
3133 | llvm::DIType *ClassTy = getOrCreateType(ED->getIntegerType(), DefUnit); |
3134 | return DBuilder.createEnumerationType(EnumContext, ED->getName(), DefUnit, |
3135 | Line, Size, Align, EltArray, ClassTy, |
3136 | Identifier, ED->isScoped()); |
3137 | } |
3138 | |
3139 | llvm::DIMacro *CGDebugInfo::CreateMacro(llvm::DIMacroFile *Parent, |
3140 | unsigned MType, SourceLocation LineLoc, |
3141 | StringRef Name, StringRef Value) { |
3142 | unsigned Line = LineLoc.isInvalid() ? 0 : getLineNumber(LineLoc); |
3143 | return DBuilder.createMacro(Parent, Line, MType, Name, Value); |
3144 | } |
3145 | |
3146 | llvm::DIMacroFile *CGDebugInfo::CreateTempMacroFile(llvm::DIMacroFile *Parent, |
3147 | SourceLocation LineLoc, |
3148 | SourceLocation FileLoc) { |
3149 | llvm::DIFile *FName = getOrCreateFile(FileLoc); |
3150 | unsigned Line = LineLoc.isInvalid() ? 0 : getLineNumber(LineLoc); |
3151 | return DBuilder.createTempMacroFile(Parent, Line, FName); |
3152 | } |
3153 | |
3154 | static QualType UnwrapTypeForDebugInfo(QualType T, const ASTContext &C) { |
3155 | Qualifiers Quals; |
3156 | do { |
3157 | Qualifiers InnerQuals = T.getLocalQualifiers(); |
3158 | |
3159 | |
3160 | Quals += Qualifiers::removeCommonQualifiers(Quals, InnerQuals); |
3161 | Quals += InnerQuals; |
3162 | QualType LastT = T; |
3163 | switch (T->getTypeClass()) { |
3164 | default: |
3165 | return C.getQualifiedType(T.getTypePtr(), Quals); |
3166 | case Type::TemplateSpecialization: { |
3167 | const auto *Spec = cast<TemplateSpecializationType>(T); |
3168 | if (Spec->isTypeAlias()) |
3169 | return C.getQualifiedType(T.getTypePtr(), Quals); |
3170 | T = Spec->desugar(); |
3171 | break; |
3172 | } |
3173 | case Type::TypeOfExpr: |
3174 | T = cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType(); |
3175 | break; |
3176 | case Type::TypeOf: |
3177 | T = cast<TypeOfType>(T)->getUnderlyingType(); |
3178 | break; |
3179 | case Type::Decltype: |
3180 | T = cast<DecltypeType>(T)->getUnderlyingType(); |
3181 | break; |
3182 | case Type::UnaryTransform: |
3183 | T = cast<UnaryTransformType>(T)->getUnderlyingType(); |
3184 | break; |
3185 | case Type::Attributed: |
3186 | T = cast<AttributedType>(T)->getEquivalentType(); |
3187 | break; |
3188 | case Type::Elaborated: |
3189 | T = cast<ElaboratedType>(T)->getNamedType(); |
3190 | break; |
3191 | case Type::Paren: |
3192 | T = cast<ParenType>(T)->getInnerType(); |
3193 | break; |
3194 | case Type::MacroQualified: |
3195 | T = cast<MacroQualifiedType>(T)->getUnderlyingType(); |
3196 | break; |
3197 | case Type::SubstTemplateTypeParm: |
3198 | T = cast<SubstTemplateTypeParmType>(T)->getReplacementType(); |
3199 | break; |
3200 | case Type::Auto: |
3201 | case Type::DeducedTemplateSpecialization: { |
3202 | QualType DT = cast<DeducedType>(T)->getDeducedType(); |
3203 | assert(!DT.isNull() && "Undeduced types shouldn't reach here."); |
3204 | T = DT; |
3205 | break; |
3206 | } |
3207 | case Type::Adjusted: |
3208 | case Type::Decayed: |
3209 | |
3210 | T = cast<AdjustedType>(T)->getAdjustedType(); |
3211 | break; |
3212 | } |
3213 | |
3214 | assert(T != LastT && "Type unwrapping failed to unwrap!"); |
3215 | (void)LastT; |
3216 | } while (true); |
3217 | } |
3218 | |
3219 | llvm::DIType *CGDebugInfo::getTypeOrNull(QualType Ty) { |
3220 | assert(Ty == UnwrapTypeForDebugInfo(Ty, CGM.getContext())); |
3221 | auto It = TypeCache.find(Ty.getAsOpaquePtr()); |
3222 | if (It != TypeCache.end()) { |
3223 | |
3224 | if (llvm::Metadata *V = It->second) |
3225 | return cast<llvm::DIType>(V); |
3226 | } |
3227 | |
3228 | return nullptr; |
3229 | } |
3230 | |
3231 | void CGDebugInfo::completeTemplateDefinition( |
3232 | const ClassTemplateSpecializationDecl &SD) { |
3233 | completeUnusedClass(SD); |
3234 | } |
3235 | |
3236 | void CGDebugInfo::completeUnusedClass(const CXXRecordDecl &D) { |
3237 | if (DebugKind <= codegenoptions::DebugLineTablesOnly) |
3238 | return; |
3239 | |
3240 | completeClassData(&D); |
3241 | |
3242 | |
3243 | RetainedTypes.push_back(CGM.getContext().getRecordType(&D).getAsOpaquePtr()); |
3244 | } |
3245 | |
3246 | llvm::DIType *CGDebugInfo::getOrCreateType(QualType Ty, llvm::DIFile *Unit) { |
3247 | if (Ty.isNull()) |
3248 | return nullptr; |
3249 | |
3250 | llvm::TimeTraceScope TimeScope("DebugType", [&]() { |
3251 | std::string Name; |
3252 | llvm::raw_string_ostream OS(Name); |
3253 | Ty.print(OS, getPrintingPolicy()); |
3254 | return Name; |
3255 | }); |
3256 | |
3257 | |
3258 | Ty = UnwrapTypeForDebugInfo(Ty, CGM.getContext()); |
3259 | |
3260 | if (auto *T = getTypeOrNull(Ty)) |
3261 | return T; |
3262 | |
3263 | llvm::DIType *Res = CreateTypeNode(Ty, Unit); |
3264 | void *TyPtr = Ty.getAsOpaquePtr(); |
3265 | |
3266 | |
3267 | TypeCache[TyPtr].reset(Res); |
3268 | |
3269 | return Res; |
3270 | } |
3271 | |
3272 | llvm::DIModule *CGDebugInfo::getParentModuleOrNull(const Decl *D) { |
3273 | |
3274 | if (isa<RecordDecl>(D) && !cast<RecordDecl>(D)->getDefinition()) |
3275 | return nullptr; |
3276 | if (DebugTypeExtRefs && D->isFromASTFile()) { |
3277 | |
3278 | auto *Reader = CGM.getContext().getExternalSource(); |
3279 | auto Idx = D->getOwningModuleID(); |
3280 | auto Info = Reader->getSourceDescriptor(Idx); |
3281 | if (Info) |
3282 | return getOrCreateModuleRef(*Info, true); |
3283 | } else if (ClangModuleMap) { |
3284 | |
3285 | |
3286 | |
3287 | |
3288 | |
3289 | |
3290 | |
3291 | |
3292 | |
3293 | |
3294 | if (Module *M = D->getOwningModule()) { |
3295 | |
3296 | auto Info = ASTSourceDescriptor(*M); |
3297 | return getOrCreateModuleRef(Info, false); |
3298 | } else { |
3299 | |
3300 | return getOrCreateModuleRef(PCHDescriptor, false); |
3301 | } |
3302 | } |
3303 | |
3304 | return nullptr; |
3305 | } |
3306 | |
3307 | llvm::DIType *CGDebugInfo::CreateTypeNode(QualType Ty, llvm::DIFile *Unit) { |
3308 | |
3309 | if (Ty.hasLocalQualifiers()) |
3310 | return CreateQualifiedType(Ty, Unit); |
3311 | |
3312 | |
3313 | switch (Ty->getTypeClass()) { |
3314 | #define TYPE(Class, Base) |
3315 | #define ABSTRACT_TYPE(Class, Base) |
3316 | #define NON_CANONICAL_TYPE(Class, Base) |
3317 | #define DEPENDENT_TYPE(Class, Base) case Type::Class: |
3318 | #include "clang/AST/TypeNodes.inc" |
3319 | llvm_unreachable("Dependent types cannot show up in debug information"); |
3320 | |
3321 | case Type::ExtVector: |
3322 | case Type::Vector: |
3323 | return CreateType(cast<VectorType>(Ty), Unit); |
3324 | case Type::ConstantMatrix: |
3325 | return CreateType(cast<ConstantMatrixType>(Ty), Unit); |
3326 | case Type::ObjCObjectPointer: |
3327 | return CreateType(cast<ObjCObjectPointerType>(Ty), Unit); |
3328 | case Type::ObjCObject: |
3329 | return CreateType(cast<ObjCObjectType>(Ty), Unit); |
3330 | case Type::ObjCTypeParam: |
3331 | return CreateType(cast<ObjCTypeParamType>(Ty), Unit); |
3332 | case Type::ObjCInterface: |
3333 | return CreateType(cast<ObjCInterfaceType>(Ty), Unit); |
3334 | case Type::Builtin: |
3335 | return CreateType(cast<BuiltinType>(Ty)); |
3336 | case Type::Complex: |
3337 | return CreateType(cast<ComplexType>(Ty)); |
3338 | case Type::Pointer: |
3339 | return CreateType(cast<PointerType>(Ty), Unit); |
3340 | case Type::BlockPointer: |
3341 | return CreateType(cast<BlockPointerType>(Ty), Unit); |
3342 | case Type::Typedef: |
3343 | return CreateType(cast<TypedefType>(Ty), Unit); |
3344 | case Type::Record: |
3345 | return CreateType(cast<RecordType>(Ty)); |
3346 | case Type::Enum: |
3347 | return CreateEnumType(cast<EnumType>(Ty)); |
3348 | case Type::FunctionProto: |
3349 | case Type::FunctionNoProto: |
3350 | return CreateType(cast<FunctionType>(Ty), Unit); |
3351 | case Type::ConstantArray: |
3352 | case Type::VariableArray: |
3353 | case Type::IncompleteArray: |
3354 | return CreateType(cast<ArrayType>(Ty), Unit); |
3355 | |
3356 | case Type::LValueReference: |
3357 | return CreateType(cast<LValueReferenceType>(Ty), Unit); |
3358 | case Type::RValueReference: |
3359 | return CreateType(cast<RValueReferenceType>(Ty), Unit); |
3360 | |
3361 | case Type::MemberPointer: |
3362 | return CreateType(cast<MemberPointerType>(Ty), Unit); |
3363 | |
3364 | case Type::Atomic: |
3365 | return CreateType(cast<AtomicType>(Ty), Unit); |
3366 | |
3367 | case Type::ExtInt: |
3368 | return CreateType(cast<ExtIntType>(Ty)); |
3369 | case Type::Pipe: |
3370 | return CreateType(cast<PipeType>(Ty), Unit); |
3371 | |
3372 | case Type::TemplateSpecialization: |
3373 | return CreateType(cast<TemplateSpecializationType>(Ty), Unit); |
3374 | |
3375 | case Type::Auto: |
3376 | case Type::Attributed: |
3377 | case Type::Adjusted: |
3378 | case Type::Decayed: |
3379 | case Type::DeducedTemplateSpecialization: |
3380 | case Type::Elaborated: |
3381 | case Type::Paren: |
3382 | case Type::MacroQualified: |
3383 | case Type::SubstTemplateTypeParm: |
3384 | case Type::TypeOfExpr: |
3385 | case Type::TypeOf: |
3386 | case Type::Decltype: |
3387 | case Type::UnaryTransform: |
3388 | break; |
3389 | } |
3390 | |
3391 | llvm_unreachable("type should have been unwrapped!"); |
3392 | } |
3393 | |
3394 | llvm::DICompositeType * |
3395 | CGDebugInfo::getOrCreateLimitedType(const RecordType *Ty) { |
3396 | QualType QTy(Ty, 0); |
3397 | |
3398 | auto *T = cast_or_null<llvm::DICompositeType>(getTypeOrNull(QTy)); |
3399 | |
3400 | |
3401 | |
3402 | |
3403 | if (T && !T->isForwardDecl()) |
3404 | return T; |
3405 | |
3406 | |
3407 | llvm::DICompositeType *Res = CreateLimitedType(Ty); |
3408 | |
3409 | |
3410 | |
3411 | |
3412 | DBuilder.replaceArrays(Res, T ? T->getElements() : llvm::DINodeArray()); |
3413 | |
3414 | |
3415 | TypeCache[QTy.getAsOpaquePtr()].reset(Res); |
3416 | return Res; |
3417 | } |
3418 | |
3419 | |
3420 | llvm::DICompositeType *CGDebugInfo::CreateLimitedType(const RecordType *Ty) { |
3421 | RecordDecl *RD = Ty->getDecl(); |
3422 | |
3423 | |
3424 | StringRef RDName = getClassName(RD); |
3425 | const SourceLocation Loc = RD->getLocation(); |
3426 | llvm::DIFile *DefUnit = nullptr; |
3427 | unsigned Line = 0; |
3428 | if (Loc.isValid()) { |
3429 | DefUnit = getOrCreateFile(Loc); |
3430 | Line = getLineNumber(Loc); |
3431 | } |
3432 | |
3433 | llvm::DIScope *RDContext = getDeclContextDescriptor(RD); |
3434 | |
3435 | |
3436 | |
3437 | auto *T = cast_or_null<llvm::DICompositeType>( |
3438 | getTypeOrNull(CGM.getContext().getRecordType(RD))); |
3439 | if (T && (!T->isForwardDecl() || !RD->getDefinition())) |
3440 | return T; |
3441 | |
3442 | |
3443 | |
3444 | const RecordDecl *D = RD->getDefinition(); |
3445 | if (!D || !D->isCompleteDefinition()) |
3446 | return getOrCreateRecordFwdDecl(Ty, RDContext); |
3447 | |
3448 | uint64_t Size = CGM.getContext().getTypeSize(Ty); |
3449 | auto Align = getDeclAlignIfRequired(D, CGM.getContext()); |
3450 | |
3451 | SmallString<256> Identifier = getTypeIdentifier(Ty, CGM, TheCU); |
3452 | |
3453 | |
3454 | |
3455 | auto Flags = llvm::DINode::FlagZero; |
3456 | if (auto CXXRD = dyn_cast<CXXRecordDecl>(RD)) { |
3457 | if (CGM.getCXXABI().getRecordArgABI(CXXRD) == CGCXXABI::RAA_Indirect) |
3458 | Flags |= llvm::DINode::FlagTypePassByReference; |
3459 | else |
3460 | Flags |= llvm::DINode::FlagTypePassByValue; |
3461 | |
3462 | |
3463 | if (!CXXRD->isTrivial()) |
3464 | Flags |= llvm::DINode::FlagNonTrivial; |
3465 | |
3466 | |
3467 | if (CXXRD->isAnonymousStructOrUnion()) |
3468 | Flags |= llvm::DINode::FlagExportSymbols; |
3469 | } |
3470 | |
3471 | llvm::DINodeArray Annotations = CollectBTFTagAnnotations(D); |
3472 | llvm::DICompositeType *RealDecl = DBuilder.createReplaceableCompositeType( |
3473 | getTagForRecord(RD), RDName, RDContext, DefUnit, Line, 0, Size, Align, |
3474 | Flags, Identifier, Annotations); |
3475 | |
3476 | |
3477 | |
3478 | switch (RealDecl->getTag()) { |
3479 | default: |
3480 | llvm_unreachable("invalid composite type tag"); |
3481 | |
3482 | case llvm::dwarf::DW_TAG_array_type: |
3483 | case llvm::dwarf::DW_TAG_enumeration_type: |
3484 | |
3485 | |
3486 | |
3487 | |
3488 | if (Identifier.empty()) |
3489 | break; |
3490 | LLVM_FALLTHROUGH; |
3491 | |
3492 | case llvm::dwarf::DW_TAG_structure_type: |
3493 | case llvm::dwarf::DW_TAG_union_type: |
3494 | case llvm::dwarf::DW_TAG_class_type: |
3495 | |
3496 | RealDecl = |
3497 | llvm::MDNode::replaceWithDistinct(llvm::TempDICompositeType(RealDecl)); |
3498 | break; |
3499 | } |
3500 | |
3501 | RegionMap[Ty->getDecl()].reset(RealDecl); |
3502 | TypeCache[QualType(Ty, 0).getAsOpaquePtr()].reset(RealDecl); |
3503 | |
3504 | if (const auto *TSpecial = dyn_cast<ClassTemplateSpecializationDecl>(RD)) |
3505 | DBuilder.replaceArrays(RealDecl, llvm::DINodeArray(), |
3506 | CollectCXXTemplateParams(TSpecial, DefUnit)); |
3507 | return RealDecl; |
3508 | } |
3509 | |
3510 | void CGDebugInfo::CollectContainingType(const CXXRecordDecl *RD, |
3511 | llvm::DICompositeType *RealDecl) { |
3512 | |
3513 | llvm::DICompositeType *ContainingType = nullptr; |
3514 | const ASTRecordLayout &RL = CGM.getContext().getASTRecordLayout(RD); |
3515 | if (const CXXRecordDecl *PBase = RL.getPrimaryBase()) { |
3516 | |
3517 | while (1) { |
3518 | const ASTRecordLayout &BRL = CGM.getContext().getASTRecordLayout(PBase); |
3519 | const CXXRecordDecl *PBT = BRL.getPrimaryBase(); |
3520 | if (PBT && !BRL.isPrimaryBaseVirtual()) |
3521 | PBase = PBT; |
3522 | else |
3523 | break; |
3524 | } |
3525 | ContainingType = cast<llvm::DICompositeType>( |
3526 | getOrCreateType(QualType(PBase->getTypeForDecl(), 0), |
3527 | getOrCreateFile(RD->getLocation()))); |
3528 | } else if (RD->isDynamicClass()) |
3529 | ContainingType = RealDecl; |
3530 | |
3531 | DBuilder.replaceVTableHolder(RealDecl, ContainingType); |
3532 | } |
3533 | |
3534 | llvm::DIType *CGDebugInfo::CreateMemberType(llvm::DIFile *Unit, QualType FType, |
3535 | StringRef Name, uint64_t *Offset) { |
3536 | llvm::DIType *FieldTy = CGDebugInfo::getOrCreateType(FType, Unit); |
3537 | uint64_t FieldSize = CGM.getContext().getTypeSize(FType); |
3538 | auto FieldAlign = getTypeAlignIfRequired(FType, CGM.getContext()); |
3539 | llvm::DIType *Ty = |
3540 | DBuilder.createMemberType(Unit, Name, Unit, 0, FieldSize, FieldAlign, |
3541 | *Offset, llvm::DINode::FlagZero, FieldTy); |
3542 | *Offset += FieldSize; |
3543 | return Ty; |
3544 | } |
3545 | |
3546 | void CGDebugInfo::collectFunctionDeclProps(GlobalDecl GD, llvm::DIFile *Unit, |
3547 | StringRef &Name, |
3548 | StringRef &LinkageName, |
3549 | llvm::DIScope *&FDContext, |
3550 | llvm::DINodeArray &TParamsArray, |
3551 | llvm::DINode::DIFlags &Flags) { |
3552 | const auto *FD = cast<FunctionDecl>(GD.getCanonicalDecl().getDecl()); |
3553 | Name = getFunctionName(FD); |
3554 | |
3555 | if (FD->getType()->getAs<FunctionProtoType>()) |
3556 | LinkageName = CGM.getMangledName(GD); |
3557 | if (FD->hasPrototype()) |
3558 | Flags |= llvm::DINode::FlagPrototyped; |
3559 | |
3560 | |
3561 | |
3562 | if (LinkageName == Name || (!CGM.getCodeGenOpts().EmitGcovArcs && |
3563 | !CGM.getCodeGenOpts().EmitGcovNotes && |
3564 | !CGM.getCodeGenOpts().DebugInfoForProfiling && |
3565 | !CGM.getCodeGenOpts().PseudoProbeForProfiling && |
3566 | DebugKind <= codegenoptions::DebugLineTablesOnly)) |
3567 | LinkageName = StringRef(); |
3568 | |
3569 | |
3570 | |
3571 | if (CGM.getCodeGenOpts().hasReducedDebugInfo() || |
3572 | (DebugKind == codegenoptions::DebugLineTablesOnly && |
3573 | CGM.getCodeGenOpts().EmitCodeView)) { |
3574 | if (const NamespaceDecl *NSDecl = |
3575 | dyn_cast_or_null<NamespaceDecl>(FD->getDeclContext())) |
3576 | FDContext = getOrCreateNamespace(NSDecl); |
3577 | else if (const RecordDecl *RDecl = |
3578 | dyn_cast_or_null<RecordDecl>(FD->getDeclContext())) { |
3579 | llvm::DIScope *Mod = getParentModuleOrNull(RDecl); |
3580 | FDContext = getContextDescriptor(RDecl, Mod ? Mod : TheCU); |
3581 | } |
3582 | } |
3583 | if (CGM.getCodeGenOpts().hasReducedDebugInfo()) { |
3584 | |
3585 | if (FD->isNoReturn()) |
3586 | Flags |= llvm::DINode::FlagNoReturn; |
3587 | |
3588 | TParamsArray = CollectFunctionTemplateParams(FD, Unit); |
3589 | } |
3590 | } |
3591 | |
3592 | void CGDebugInfo::collectVarDeclProps(const VarDecl *VD, llvm::DIFile *&Unit, |
3593 | unsigned &LineNo, QualType &T, |
3594 | StringRef &Name, StringRef &LinkageName, |
3595 | llvm::MDTuple *&TemplateParameters, |
3596 | llvm::DIScope *&VDContext) { |
3597 | Unit = getOrCreateFile(VD->getLocation()); |
3598 | LineNo = getLineNumber(VD->getLocation()); |
3599 | |
3600 | setLocation(VD->getLocation()); |
3601 | |
3602 | T = VD->getType(); |
3603 | if (T->isIncompleteArrayType()) { |
| |
3604 | |
3605 | llvm::APInt ConstVal(32, 1); |
3606 | QualType ET = CGM.getContext().getAsArrayType(T)->getElementType(); |
3607 | |
3608 | T = CGM.getContext().getConstantArrayType(ET, ConstVal, nullptr, |
3609 | ArrayType::Normal, 0); |
3610 | } |
3611 | |
3612 | Name = VD->getName(); |
3613 | if (VD->getDeclContext() && !isa<FunctionDecl>(VD->getDeclContext()) && |
| 14 | | Assuming the condition is false | |
|
| |
3614 | !isa<ObjCMethodDecl>(VD->getDeclContext())) |
3615 | LinkageName = CGM.getMangledName(VD); |
3616 | if (LinkageName == Name) |
| 16 | | Assuming the condition is false | |
|
| |
3617 | LinkageName = StringRef(); |
3618 | |
3619 | if (isa<VarTemplateSpecializationDecl>(VD)) { |
| 18 | | Assuming 'VD' is a 'VarTemplateSpecializationDecl' | |
|
| |
3620 | llvm::DINodeArray parameterNodes = CollectVarTemplateParams(VD, &*Unit); |
| 20 | | Calling 'CGDebugInfo::CollectVarTemplateParams' | |
|
3621 | TemplateParameters = parameterNodes.get(); |
3622 | } else { |
3623 | TemplateParameters = nullptr; |
3624 | } |
3625 | |
3626 | |
3627 | |
3628 | |
3629 | |
3630 | |
3631 | |
3632 | const DeclContext *DC = VD->isStaticDataMember() ? VD->getLexicalDeclContext() |
3633 | : VD->getDeclContext(); |
3634 | |
3635 | |
3636 | |
3637 | |
3638 | |
3639 | |
3640 | if (DC->isRecord()) |
3641 | DC = CGM.getContext().getTranslationUnitDecl(); |
3642 | |
3643 | llvm::DIScope *Mod = getParentModuleOrNull(VD); |
3644 | VDContext = getContextDescriptor(cast<Decl>(DC), Mod ? Mod : TheCU); |
3645 | } |
3646 | |
3647 | llvm::DISubprogram *CGDebugInfo::getFunctionFwdDeclOrStub(GlobalDecl GD, |
3648 | bool Stub) { |
3649 | llvm::DINodeArray TParamsArray; |
3650 | StringRef Name, LinkageName; |
3651 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
3652 | llvm::DISubprogram::DISPFlags SPFlags = llvm::DISubprogram::SPFlagZero; |
3653 | SourceLocation Loc = GD.getDecl()->getLocation(); |
3654 | llvm::DIFile *Unit = getOrCreateFile(Loc); |
3655 | llvm::DIScope *DContext = Unit; |
3656 | unsigned Line = getLineNumber(Loc); |
3657 | collectFunctionDeclProps(GD, Unit, Name, LinkageName, DContext, TParamsArray, |
3658 | Flags); |
3659 | auto *FD = cast<FunctionDecl>(GD.getDecl()); |
3660 | |
3661 | |
3662 | SmallVector<QualType, 16> ArgTypes; |
3663 | for (const ParmVarDecl *Parm : FD->parameters()) |
3664 | ArgTypes.push_back(Parm->getType()); |
3665 | |
3666 | CallingConv CC = FD->getType()->castAs<FunctionType>()->getCallConv(); |
3667 | QualType FnType = CGM.getContext().getFunctionType( |
3668 | FD->getReturnType(), ArgTypes, FunctionProtoType::ExtProtoInfo(CC)); |
3669 | if (!FD->isExternallyVisible()) |
3670 | SPFlags |= llvm::DISubprogram::SPFlagLocalToUnit; |
3671 | if (CGM.getLangOpts().Optimize) |
3672 | SPFlags |= llvm::DISubprogram::SPFlagOptimized; |
3673 | |
3674 | if (Stub) { |
3675 | Flags |= getCallSiteRelatedAttrs(); |
3676 | SPFlags |= llvm::DISubprogram::SPFlagDefinition; |
3677 | return DBuilder.createFunction( |
3678 | DContext, Name, LinkageName, Unit, Line, |
3679 | getOrCreateFunctionType(GD.getDecl(), FnType, Unit), 0, Flags, SPFlags, |
3680 | TParamsArray.get(), getFunctionDeclaration(FD)); |
3681 | } |
3682 | |
3683 | llvm::DISubprogram *SP = DBuilder.createTempFunctionFwdDecl( |
3684 | DContext, Name, LinkageName, Unit, Line, |
3685 | getOrCreateFunctionType(GD.getDecl(), FnType, Unit), 0, Flags, SPFlags, |
3686 | TParamsArray.get(), getFunctionDeclaration(FD)); |
3687 | const FunctionDecl *CanonDecl = FD->getCanonicalDecl(); |
3688 | FwdDeclReplaceMap.emplace_back(std::piecewise_construct, |
3689 | std::make_tuple(CanonDecl), |
3690 | std::make_tuple(SP)); |
3691 | return SP; |
3692 | } |
3693 | |
3694 | llvm::DISubprogram *CGDebugInfo::getFunctionForwardDeclaration(GlobalDecl GD) { |
3695 | return getFunctionFwdDeclOrStub(GD, false); |
3696 | } |
3697 | |
3698 | llvm::DISubprogram *CGDebugInfo::getFunctionStub(GlobalDecl GD) { |
3699 | return getFunctionFwdDeclOrStub(GD, true); |
3700 | } |
3701 | |
3702 | llvm::DIGlobalVariable * |
3703 | CGDebugInfo::getGlobalVariableForwardDeclaration(const VarDecl *VD) { |
3704 | QualType T; |
3705 | StringRef Name, LinkageName; |
3706 | SourceLocation Loc = VD->getLocation(); |
3707 | llvm::DIFile *Unit = getOrCreateFile(Loc); |
3708 | llvm::DIScope *DContext = Unit; |
3709 | unsigned Line = getLineNumber(Loc); |
3710 | llvm::MDTuple *TemplateParameters = nullptr; |
3711 | |
3712 | collectVarDeclProps(VD, Unit, Line, T, Name, LinkageName, TemplateParameters, |
| 12 | | Calling 'CGDebugInfo::collectVarDeclProps' | |
|
3713 | DContext); |
3714 | auto Align = getDeclAlignIfRequired(VD, CGM.getContext()); |
3715 | auto *GV = DBuilder.createTempGlobalVariableFwdDecl( |
3716 | DContext, Name, LinkageName, Unit, Line, getOrCreateType(T, Unit), |
3717 | !VD->isExternallyVisible(), nullptr, TemplateParameters, Align); |
3718 | FwdDeclReplaceMap.emplace_back( |
3719 | std::piecewise_construct, |
3720 | std::make_tuple(cast<VarDecl>(VD->getCanonicalDecl())), |
3721 | std::make_tuple(static_cast<llvm::Metadata *>(GV))); |
3722 | return GV; |
3723 | } |
3724 | |
3725 | llvm::DINode *CGDebugInfo::getDeclarationOrDefinition(const Decl *D) { |
3726 | |
3727 | |
3728 | |
3729 | |
3730 | if (const auto *TD = dyn_cast<TypeDecl>(D)) |
| 4 | | Assuming 'D' is not a 'TypeDecl' | |
|
| |
3731 | return getOrCreateType(CGM.getContext().getTypeDeclType(TD), |
3732 | getOrCreateFile(TD->getLocation())); |
3733 | auto I = DeclCache.find(D->getCanonicalDecl()); |
3734 | |
3735 | if (I != DeclCache.end()) { |
| |
3736 | auto N = I->second; |
3737 | if (auto *GVE = dyn_cast_or_null<llvm::DIGlobalVariableExpression>(N)) |
3738 | return GVE->getVariable(); |
3739 | return dyn_cast_or_null<llvm::DINode>(N); |
3740 | } |
3741 | |
3742 | |
3743 | |
3744 | if (const auto *FD = dyn_cast<FunctionDecl>(D)) |
| 7 | | Assuming 'D' is not a 'FunctionDecl' | |
|
| |
3745 | return getFunctionForwardDeclaration(FD); |
3746 | else if (const auto *VD = dyn_cast<VarDecl>(D)) |
| 9 | | Assuming 'D' is a 'VarDecl' | |
|
| |
3747 | return getGlobalVariableForwardDeclaration(VD); |
| 11 | | Calling 'CGDebugInfo::getGlobalVariableForwardDeclaration' | |
|
3748 | |
3749 | return nullptr; |
3750 | } |
3751 | |
3752 | llvm::DISubprogram *CGDebugInfo::getFunctionDeclaration(const Decl *D) { |
3753 | if (!D || DebugKind <= codegenoptions::DebugLineTablesOnly) |
3754 | return nullptr; |
3755 | |
3756 | const auto *FD = dyn_cast<FunctionDecl>(D); |
3757 | if (!FD) |
3758 | return nullptr; |
3759 | |
3760 | |
3761 | auto *S = getDeclContextDescriptor(D); |
3762 | |
3763 | auto MI = SPCache.find(FD->getCanonicalDecl()); |
3764 | if (MI == SPCache.end()) { |
3765 | if (const auto *MD = dyn_cast<CXXMethodDecl>(FD->getCanonicalDecl())) { |
3766 | return CreateCXXMemberFunction(MD, getOrCreateFile(MD->getLocation()), |
3767 | cast<llvm::DICompositeType>(S)); |
3768 | } |
3769 | } |
3770 | if (MI != SPCache.end()) { |
3771 | auto *SP = dyn_cast_or_null<llvm::DISubprogram>(MI->second); |
3772 | if (SP && !SP->isDefinition()) |
3773 | return SP; |
3774 | } |
3775 | |
3776 | for (auto NextFD : FD->redecls()) { |
3777 | auto MI = SPCache.find(NextFD->getCanonicalDecl()); |
3778 | if (MI != SPCache.end()) { |
3779 | auto *SP = dyn_cast_or_null<llvm::DISubprogram>(MI->second); |
3780 | if (SP && !SP->isDefinition()) |
3781 | return SP; |
3782 | } |
3783 | } |
3784 | return nullptr; |
3785 | } |
3786 | |
3787 | llvm::DISubprogram *CGDebugInfo::getObjCMethodDeclaration( |
3788 | const Decl *D, llvm::DISubroutineType *FnType, unsigned LineNo, |
3789 | llvm::DINode::DIFlags Flags, llvm::DISubprogram::DISPFlags SPFlags) { |
3790 | if (!D || DebugKind <= codegenoptions::DebugLineTablesOnly) |
3791 | return nullptr; |
3792 | |
3793 | const auto *OMD = dyn_cast<ObjCMethodDecl>(D); |
3794 | if (!OMD) |
3795 | return nullptr; |
3796 | |
3797 | if (CGM.getCodeGenOpts().DwarfVersion < 5 && !OMD->isDirectMethod()) |
3798 | return nullptr; |
3799 | |
3800 | if (OMD->isDirectMethod()) |
3801 | SPFlags |= llvm::DISubprogram::SPFlagObjCDirect; |
3802 | |
3803 | |
3804 | |
3805 | auto *ID = dyn_cast_or_null<ObjCInterfaceDecl>(D->getDeclContext()); |
3806 | if (!ID) |
3807 | ID = OMD->getClassInterface(); |
3808 | if (!ID) |
3809 | return nullptr; |
3810 | QualType QTy(ID->getTypeForDecl(), 0); |
3811 | auto It = TypeCache.find(QTy.getAsOpaquePtr()); |
3812 | if (It == TypeCache.end()) |
3813 | return nullptr; |
3814 | auto *InterfaceType = cast<llvm::DICompositeType>(It->second); |
3815 | llvm::DISubprogram *FD = DBuilder.createFunction( |
3816 | InterfaceType, getObjCMethodName(OMD), StringRef(), |
3817 | InterfaceType->getFile(), LineNo, FnType, LineNo, Flags, SPFlags); |
3818 | DBuilder.finalizeSubprogram(FD); |
3819 | ObjCMethodCache[ID].push_back({FD, OMD->isDirectMethod()}); |
3820 | return FD; |
3821 | } |
3822 | |
3823 | |
3824 | |
3825 | llvm::DISubroutineType *CGDebugInfo::getOrCreateFunctionType(const Decl *D, |
3826 | QualType FnType, |
3827 | llvm::DIFile *F) { |
3828 | |
3829 | |
3830 | if (!D || (DebugKind <= codegenoptions::DebugLineTablesOnly && |
3831 | !CGM.getCodeGenOpts().EmitCodeView)) |
3832 | |
3833 | |
3834 | return DBuilder.createSubroutineType(DBuilder.getOrCreateTypeArray(None)); |
3835 | |
3836 | if (const auto *Method = dyn_cast<CXXMethodDecl>(D)) |
3837 | return getOrCreateMethodType(Method, F, false); |
3838 | |
3839 | const auto *FTy = FnType->getAs<FunctionType>(); |
3840 | CallingConv CC = FTy ? FTy->getCallConv() : CallingConv::CC_C; |
3841 | |
3842 | if (const auto *OMethod = dyn_cast<ObjCMethodDecl>(D)) { |
3843 | |
3844 | SmallVector<llvm::Metadata *, 16> Elts; |
3845 | |
3846 | |
3847 | QualType ResultTy = OMethod->getReturnType(); |
3848 | |
3849 | |
3850 | if (ResultTy == CGM.getContext().getObjCInstanceType()) |
3851 | ResultTy = CGM.getContext().getPointerType( |
3852 | QualType(OMethod->getClassInterface()->getTypeForDecl(), 0)); |
3853 | |
3854 | Elts.push_back(getOrCreateType(ResultTy, F)); |
3855 | |
3856 | QualType SelfDeclTy; |
3857 | if (auto *SelfDecl = OMethod->getSelfDecl()) |
3858 | SelfDeclTy = SelfDecl->getType(); |
3859 | else if (auto *FPT = dyn_cast<FunctionProtoType>(FnType)) |
3860 | if (FPT->getNumParams() > 1) |
3861 | SelfDeclTy = FPT->getParamType(0); |
3862 | if (!SelfDeclTy.isNull()) |
3863 | Elts.push_back( |
3864 | CreateSelfType(SelfDeclTy, getOrCreateType(SelfDeclTy, F))); |
3865 | |
3866 | Elts.push_back(DBuilder.createArtificialType( |
3867 | getOrCreateType(CGM.getContext().getObjCSelType(), F))); |
3868 | |
3869 | for (const auto *PI : OMethod->parameters()) |
3870 | Elts.push_back(getOrCreateType(PI->getType(), F)); |
3871 | |
3872 | if (OMethod->isVariadic()) |
3873 | Elts.push_back(DBuilder.createUnspecifiedParameter()); |
3874 | |
3875 | llvm::DITypeRefArray EltTypeArray = DBuilder.getOrCreateTypeArray(Elts); |
3876 | return DBuilder.createSubroutineType(EltTypeArray, llvm::DINode::FlagZero, |
3877 | getDwarfCC(CC)); |
3878 | } |
3879 | |
3880 | |
3881 | |
3882 | if (const auto *FD = dyn_cast<FunctionDecl>(D)) |
3883 | if (FD->isVariadic()) { |
3884 | SmallVector<llvm::Metadata *, 16> EltTys; |
3885 | EltTys.push_back(getOrCreateType(FD->getReturnType(), F)); |
3886 | if (const auto *FPT = dyn_cast<FunctionProtoType>(FnType)) |
3887 | for (QualType ParamType : FPT->param_types()) |
3888 | EltTys.push_back(getOrCreateType(ParamType, F)); |
3889 | EltTys.push_back(DBuilder.createUnspecifiedParameter()); |
3890 | llvm::DITypeRefArray EltTypeArray = DBuilder.getOrCreateTypeArray(EltTys); |
3891 | return DBuilder.createSubroutineType(EltTypeArray, llvm::DINode::FlagZero, |
3892 | getDwarfCC(CC)); |
3893 | } |
3894 | |
3895 | return cast<llvm::DISubroutineType>(getOrCreateType(FnType, F)); |
3896 | } |
3897 | |
3898 | void CGDebugInfo::emitFunctionStart(GlobalDecl GD, SourceLocation Loc, |
3899 | SourceLocation ScopeLoc, QualType FnType, |
3900 | llvm::Function *Fn, bool CurFuncIsThunk) { |
3901 | StringRef Name; |
3902 | StringRef LinkageName; |
3903 | |
3904 | FnBeginRegionCount.push_back(LexicalBlockStack.size()); |
3905 | |
3906 | const Decl *D = GD.getDecl(); |
3907 | bool HasDecl = (D != nullptr); |
3908 | |
3909 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
3910 | llvm::DISubprogram::DISPFlags SPFlags = llvm::DISubprogram::SPFlagZero; |
3911 | llvm::DIFile *Unit = getOrCreateFile(Loc); |
3912 | llvm::DIScope *FDContext = Unit; |
3913 | llvm::DINodeArray TParamsArray; |
3914 | if (!HasDecl) { |
3915 | |
3916 | LinkageName = Fn->getName(); |
3917 | } else if (const auto *FD = dyn_cast<FunctionDecl>(D)) { |
3918 | |
3919 | auto FI = SPCache.find(FD->getCanonicalDecl()); |
3920 | if (FI != SPCache.end()) { |
3921 | auto *SP = dyn_cast_or_null<llvm::DISubprogram>(FI->second); |
3922 | if (SP && SP->isDefinition()) { |
3923 | LexicalBlockStack.emplace_back(SP); |
3924 | RegionMap[D].reset(SP); |
3925 | return; |
3926 | } |
3927 | } |
3928 | collectFunctionDeclProps(GD, Unit, Name, LinkageName, FDContext, |
3929 | TParamsArray, Flags); |
3930 | } else if (const auto *OMD = dyn_cast<ObjCMethodDecl>(D)) { |
3931 | Name = getObjCMethodName(OMD); |
3932 | Flags |= llvm::DINode::FlagPrototyped; |
3933 | } else if (isa<VarDecl>(D) && |
3934 | GD.getDynamicInitKind() != DynamicInitKind::NoStub) { |
3935 | |
3936 | Name = getDynamicInitializerName(cast<VarDecl>(D), GD.getDynamicInitKind(), |
3937 | Fn); |
3938 | } else { |
3939 | Name = Fn->getName(); |
3940 | |
3941 | if (isa<BlockDecl>(D)) |
3942 | LinkageName = Name; |
3943 | |
3944 | Flags |= llvm::DINode::FlagPrototyped; |
3945 | } |
3946 | if (Name.startswith("\01")) |
3947 | Name = Name.substr(1); |
3948 | |
3949 | if (!HasDecl || D->isImplicit() || D->hasAttr<ArtificialAttr>() || |
3950 | (isa<VarDecl>(D) && GD.getDynamicInitKind() != DynamicInitKind::NoStub)) { |
3951 | Flags |= llvm::DINode::FlagArtificial; |
3952 | |
3953 | CurLoc = SourceLocation(); |
3954 | } |
3955 | |
3956 | if (CurFuncIsThunk) |
3957 | Flags |= llvm::DINode::FlagThunk; |
3958 | |
3959 | if (Fn->hasLocalLinkage()) |
3960 | SPFlags |= llvm::DISubprogram::SPFlagLocalToUnit; |
3961 | if (CGM.getLangOpts().Optimize) |
3962 | SPFlags |= llvm::DISubprogram::SPFlagOptimized; |
3963 | |
3964 | llvm::DINode::DIFlags FlagsForDef = Flags | getCallSiteRelatedAttrs(); |
3965 | llvm::DISubprogram::DISPFlags SPFlagsForDef = |
3966 | SPFlags | llvm::DISubprogram::SPFlagDefinition; |
3967 | |
3968 | const unsigned LineNo = getLineNumber(Loc.isValid() ? Loc : CurLoc); |
3969 | unsigned ScopeLine = getLineNumber(ScopeLoc); |
3970 | llvm::DISubroutineType *DIFnType = getOrCreateFunctionType(D, FnType, Unit); |
3971 | llvm::DISubprogram *Decl = nullptr; |
3972 | llvm::DINodeArray Annotations = nullptr; |
3973 | if (D) { |
3974 | Decl = isa<ObjCMethodDecl>(D) |
3975 | ? getObjCMethodDeclaration(D, DIFnType, LineNo, Flags, SPFlags) |
3976 | : getFunctionDeclaration(D); |
3977 | Annotations = CollectBTFTagAnnotations(D); |
3978 | } |
3979 | |
3980 | |
3981 | |
3982 | |
3983 | |
3984 | |
3985 | llvm::DISubprogram *SP = DBuilder.createFunction( |
3986 | FDContext, Name, LinkageName, Unit, LineNo, DIFnType, ScopeLine, |
3987 | FlagsForDef, SPFlagsForDef, TParamsArray.get(), Decl, nullptr, |
3988 | Annotations); |
3989 | Fn->setSubprogram(SP); |
3990 | |
3991 | |
3992 | |
3993 | if (HasDecl && isa<FunctionDecl>(D)) |
3994 | DeclCache[D->getCanonicalDecl()].reset(SP); |
3995 | |
3996 | |
3997 | LexicalBlockStack.emplace_back(SP); |
3998 | |
3999 | if (HasDecl) |
4000 | RegionMap[D].reset(SP); |
4001 | } |
4002 | |
4003 | void CGDebugInfo::EmitFunctionDecl(GlobalDecl GD, SourceLocation Loc, |
4004 | QualType FnType, llvm::Function *Fn) { |
4005 | StringRef Name; |
4006 | StringRef LinkageName; |
4007 | |
4008 | const Decl *D = GD.getDecl(); |
4009 | if (!D) |
4010 | return; |
4011 | |
4012 | llvm::TimeTraceScope TimeScope("DebugFunction", [&]() { |
4013 | return GetName(D, true); |
4014 | }); |
4015 | |
4016 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
4017 | llvm::DIFile *Unit = getOrCreateFile(Loc); |
4018 | bool IsDeclForCallSite = Fn ? true : false; |
4019 | llvm::DIScope *FDContext = |
4020 | IsDeclForCallSite ? Unit : getDeclContextDescriptor(D); |
4021 | llvm::DINodeArray TParamsArray; |
4022 | if (isa<FunctionDecl>(D)) { |
4023 | |
4024 | collectFunctionDeclProps(GD, Unit, Name, LinkageName, FDContext, |
4025 | TParamsArray, Flags); |
4026 | } else if (const auto *OMD = dyn_cast<ObjCMethodDecl>(D)) { |
4027 | Name = getObjCMethodName(OMD); |
4028 | Flags |= llvm::DINode::FlagPrototyped; |
4029 | } else { |
4030 | llvm_unreachable("not a function or ObjC method"); |
4031 | } |
4032 | if (!Name.empty() && Name[0] == '\01') |
4033 | Name = Name.substr(1); |
4034 | |
4035 | if (D->isImplicit()) { |
4036 | Flags |= llvm::DINode::FlagArtificial; |
4037 | |
4038 | if (Loc.isInvalid()) |
4039 | CurLoc = SourceLocation(); |
4040 | } |
4041 | unsigned LineNo = getLineNumber(Loc); |
4042 | unsigned ScopeLine = 0; |
4043 | llvm::DISubprogram::DISPFlags SPFlags = llvm::DISubprogram::SPFlagZero; |
4044 | if (CGM.getLangOpts().Optimize) |
4045 | SPFlags |= llvm::DISubprogram::SPFlagOptimized; |
4046 | |
4047 | llvm::DINodeArray Annotations = CollectBTFTagAnnotations(D); |
4048 | llvm::DISubprogram *SP = DBuilder.createFunction( |
4049 | FDContext, Name, LinkageName, Unit, LineNo, |
4050 | getOrCreateFunctionType(D, FnType, Unit), ScopeLine, Flags, SPFlags, |
4051 | TParamsArray.get(), getFunctionDeclaration(D), nullptr, Annotations); |
4052 | |
4053 | if (IsDeclForCallSite) |
4054 | Fn->setSubprogram(SP); |
4055 | |
4056 | DBuilder.finalizeSubprogram(SP); |
4057 | } |
4058 | |
4059 | void CGDebugInfo::EmitFuncDeclForCallSite(llvm::CallBase *CallOrInvoke, |
4060 | QualType CalleeType, |
4061 | const FunctionDecl *CalleeDecl) { |
4062 | if (!CallOrInvoke) |
4063 | return; |
4064 | auto *Func = CallOrInvoke->getCalledFunction(); |
4065 | if (!Func) |
4066 | return; |
4067 | if (Func->getSubprogram()) |
4068 | return; |
4069 | |
4070 | |
4071 | |
4072 | |
4073 | |
4074 | |
4075 | if (CalleeDecl->getBuiltinID() != 0 || CalleeDecl->hasAttr<NoDebugAttr>() || |
4076 | getCallSiteRelatedAttrs() == llvm::DINode::FlagZero) |
4077 | return; |
4078 | if (CalleeDecl->isReserved(CGM.getLangOpts()) != |
4079 | ReservedIdentifierStatus::NotReserved) |
4080 | return; |
4081 | |
4082 | |
4083 | |
4084 | |
4085 | if (!CalleeDecl->isStatic() && !CalleeDecl->isInlined()) |
4086 | EmitFunctionDecl(CalleeDecl, CalleeDecl->getLocation(), CalleeType, Func); |
4087 | } |
4088 | |
4089 | void CGDebugInfo::EmitInlineFunctionStart(CGBuilderTy &Builder, GlobalDecl GD) { |
4090 | const auto *FD = cast<FunctionDecl>(GD.getDecl()); |
4091 | |
4092 | auto FI = SPCache.find(FD->getCanonicalDecl()); |
4093 | llvm::DISubprogram *SP = nullptr; |
4094 | if (FI != SPCache.end()) |
4095 | SP = dyn_cast_or_null<llvm::DISubprogram>(FI->second); |
4096 | if (!SP || !SP->isDefinition()) |
4097 | SP = getFunctionStub(GD); |
4098 | FnBeginRegionCount.push_back(LexicalBlockStack.size()); |
4099 | LexicalBlockStack.emplace_back(SP); |
4100 | setInlinedAt(Builder.getCurrentDebugLocation()); |
4101 | EmitLocation(Builder, FD->getLocation()); |
4102 | } |
4103 | |
4104 | void CGDebugInfo::EmitInlineFunctionEnd(CGBuilderTy &Builder) { |
4105 | assert(CurInlinedAt && "unbalanced inline scope stack"); |
4106 | EmitFunctionEnd(Builder, nullptr); |
4107 | setInlinedAt(llvm::DebugLoc(CurInlinedAt).getInlinedAt()); |
4108 | } |
4109 | |
4110 | void CGDebugInfo::EmitLocation(CGBuilderTy &Builder, SourceLocation Loc) { |
4111 | |
4112 | setLocation(Loc); |
4113 | |
4114 | if (CurLoc.isInvalid() || CurLoc.isMacroID() || LexicalBlockStack.empty()) |
4115 | return; |
4116 | |
4117 | llvm::MDNode *Scope = LexicalBlockStack.back(); |
4118 | Builder.SetCurrentDebugLocation( |
4119 | llvm::DILocation::get(CGM.getLLVMContext(), getLineNumber(CurLoc), |
4120 | getColumnNumber(CurLoc), Scope, CurInlinedAt)); |
4121 | } |
4122 | |
4123 | void CGDebugInfo::CreateLexicalBlock(SourceLocation Loc) { |
4124 | llvm::MDNode *Back = nullptr; |
4125 | if (!LexicalBlockStack.empty()) |
4126 | Back = LexicalBlockStack.back().get(); |
4127 | LexicalBlockStack.emplace_back(DBuilder.createLexicalBlock( |
4128 | cast<llvm::DIScope>(Back), getOrCreateFile(CurLoc), getLineNumber(CurLoc), |
4129 | getColumnNumber(CurLoc))); |
4130 | } |
4131 | |
4132 | void CGDebugInfo::AppendAddressSpaceXDeref( |
4133 | unsigned AddressSpace, SmallVectorImpl<int64_t> &Expr) const { |
4134 | Optional<unsigned> DWARFAddressSpace = |
4135 | CGM.getTarget().getDWARFAddressSpace(AddressSpace); |
4136 | if (!DWARFAddressSpace) |
4137 | return; |
4138 | |
4139 | Expr.push_back(llvm::dwarf::DW_OP_constu); |
4140 | Expr.push_back(DWARFAddressSpace.getValue()); |
4141 | Expr.push_back(llvm::dwarf::DW_OP_swap); |
4142 | Expr.push_back(llvm::dwarf::DW_OP_xderef); |
4143 | } |
4144 | |
4145 | void CGDebugInfo::EmitLexicalBlockStart(CGBuilderTy &Builder, |
4146 | SourceLocation Loc) { |
4147 | |
4148 | setLocation(Loc); |
4149 | |
4150 | |
4151 | Builder.SetCurrentDebugLocation(llvm::DILocation::get( |
4152 | CGM.getLLVMContext(), getLineNumber(Loc), getColumnNumber(Loc), |
4153 | LexicalBlockStack.back(), CurInlinedAt)); |
4154 | |
4155 | if (DebugKind <= codegenoptions::DebugLineTablesOnly) |
4156 | return; |
4157 | |
4158 | |
4159 | CreateLexicalBlock(Loc); |
4160 | } |
4161 | |
4162 | void CGDebugInfo::EmitLexicalBlockEnd(CGBuilderTy &Builder, |
4163 | SourceLocation Loc) { |
4164 | assert(!LexicalBlockStack.empty() && "Region stack mismatch, stack empty!"); |
4165 | |
4166 | |
4167 | EmitLocation(Builder, Loc); |
4168 | |
4169 | if (DebugKind <= codegenoptions::DebugLineTablesOnly) |
4170 | return; |
4171 | |
4172 | LexicalBlockStack.pop_back(); |
4173 | } |
4174 | |
4175 | void CGDebugInfo::EmitFunctionEnd(CGBuilderTy &Builder, llvm::Function *Fn) { |
4176 | assert(!LexicalBlockStack.empty() && "Region stack mismatch, stack empty!"); |
4177 | unsigned RCount = FnBeginRegionCount.back(); |
4178 | assert(RCount <= LexicalBlockStack.size() && "Region stack mismatch"); |
4179 | |
4180 | |
4181 | while (LexicalBlockStack.size() != RCount) { |
4182 | |
4183 | EmitLocation(Builder, CurLoc); |
4184 | LexicalBlockStack.pop_back(); |
4185 | } |
4186 | FnBeginRegionCount.pop_back(); |
4187 | |
4188 | if (Fn && Fn->getSubprogram()) |
4189 | DBuilder.finalizeSubprogram(Fn->getSubprogram()); |
4190 | } |
4191 | |
4192 | CGDebugInfo::BlockByRefType |
4193 | CGDebugInfo::EmitTypeForVarWithBlocksAttr(const VarDecl *VD, |
4194 | uint64_t *XOffset) { |
4195 | SmallVector<llvm::Metadata *, 5> EltTys; |
4196 | QualType FType; |
4197 | uint64_t FieldSize, FieldOffset; |
4198 | uint32_t FieldAlign; |
4199 | |
4200 | llvm::DIFile *Unit = getOrCreateFile(VD->getLocation()); |
4201 | QualType Type = VD->getType(); |
4202 | |
4203 | FieldOffset = 0; |
4204 | FType = CGM.getContext().getPointerType(CGM.getContext().VoidTy); |
4205 | EltTys.push_back(CreateMemberType(Unit, FType, "__isa", &FieldOffset)); |
4206 | EltTys.push_back(CreateMemberType(Unit, FType, "__forwarding", &FieldOffset)); |
4207 | FType = CGM.getContext().IntTy; |
4208 | EltTys.push_back(CreateMemberType(Unit, FType, "__flags", &FieldOffset)); |
4209 | EltTys.push_back(CreateMemberType(Unit, FType, "__size", &FieldOffset)); |
4210 | |
4211 | bool HasCopyAndDispose = CGM.getContext().BlockRequiresCopying(Type, VD); |
4212 | if (HasCopyAndDispose) { |
4213 | FType = CGM.getContext().getPointerType(CGM.getContext().VoidTy); |
4214 | EltTys.push_back( |
4215 | CreateMemberType(Unit, FType, "__copy_helper", &FieldOffset)); |
4216 | EltTys.push_back( |
4217 | CreateMemberType(Unit, FType, "__destroy_helper", &FieldOffset)); |
4218 | } |
4219 | bool HasByrefExtendedLayout; |
4220 | Qualifiers::ObjCLifetime Lifetime; |
4221 | if (CGM.getContext().getByrefLifetime(Type, Lifetime, |
4222 | HasByrefExtendedLayout) && |
4223 | HasByrefExtendedLayout) { |
4224 | FType = CGM.getContext().getPointerType(CGM.getContext().VoidTy); |
4225 | EltTys.push_back( |
4226 | CreateMemberType(Unit, FType, "__byref_variable_layout", &FieldOffset)); |
4227 | } |
4228 | |
4229 | CharUnits Align = CGM.getContext().getDeclAlign(VD); |
4230 | if (Align > CGM.getContext().toCharUnitsFromBits( |
4231 | CGM.getTarget().getPointerAlign(0))) { |
4232 | CharUnits FieldOffsetInBytes = |
4233 | CGM.getContext().toCharUnitsFromBits(FieldOffset); |
4234 | CharUnits AlignedOffsetInBytes = FieldOffsetInBytes.alignTo(Align); |
4235 | CharUnits NumPaddingBytes = AlignedOffsetInBytes - FieldOffsetInBytes; |
4236 | |
4237 | if (NumPaddingBytes.isPositive()) { |
4238 | llvm::APInt pad(32, NumPaddingBytes.getQuantity()); |
4239 | FType = CGM.getContext().getConstantArrayType( |
4240 | CGM.getContext().CharTy, pad, nullptr, ArrayType::Normal, 0); |
4241 | EltTys.push_back(CreateMemberType(Unit, FType, "", &FieldOffset)); |
4242 | } |
4243 | } |
4244 | |
4245 | FType = Type; |
4246 | llvm::DIType *WrappedTy = getOrCreateType(FType, Unit); |
4247 | FieldSize = CGM.getContext().getTypeSize(FType); |
4248 | FieldAlign = CGM.getContext().toBits(Align); |
4249 | |
4250 | *XOffset = FieldOffset; |
4251 | llvm::DIType *FieldTy = DBuilder.createMemberType( |
4252 | Unit, VD->getName(), Unit, 0, FieldSize, FieldAlign, FieldOffset, |
4253 | llvm::DINode::FlagZero, WrappedTy); |
4254 | EltTys.push_back(FieldTy); |
4255 | FieldOffset += FieldSize; |
4256 | |
4257 | llvm::DINodeArray Elements = DBuilder.getOrCreateArray(EltTys); |
4258 | return {DBuilder.createStructType(Unit, "", Unit, 0, FieldOffset, 0, |
4259 | llvm::DINode::FlagZero, nullptr, Elements), |
4260 | WrappedTy}; |
4261 | } |
4262 | |
4263 | llvm::DILocalVariable *CGDebugInfo::EmitDeclare(const VarDecl *VD, |
4264 | llvm::Value *Storage, |
4265 | llvm::Optional<unsigned> ArgNo, |
4266 | CGBuilderTy &Builder, |
4267 | const bool UsePointerValue) { |
4268 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4269 | assert(!LexicalBlockStack.empty() && "Region stack mismatch, stack empty!"); |
4270 | if (VD->hasAttr<NoDebugAttr>()) |
4271 | return nullptr; |
4272 | |
4273 | bool Unwritten = |
4274 | VD->isImplicit() || (isa<Decl>(VD->getDeclContext()) && |
4275 | cast<Decl>(VD->getDeclContext())->isImplicit()); |
4276 | llvm::DIFile *Unit = nullptr; |
4277 | if (!Unwritten) |
4278 | Unit = getOrCreateFile(VD->getLocation()); |
4279 | llvm::DIType *Ty; |
4280 | uint64_t XOffset = 0; |
4281 | if (VD->hasAttr<BlocksAttr>()) |
4282 | Ty = EmitTypeForVarWithBlocksAttr(VD, &XOffset).WrappedType; |
4283 | else |
4284 | Ty = getOrCreateType(VD->getType(), Unit); |
4285 | |
4286 | |
4287 | |
4288 | if (!Ty) |
4289 | return nullptr; |
4290 | |
4291 | |
4292 | unsigned Line = 0; |
4293 | unsigned Column = 0; |
4294 | if (!Unwritten) { |
4295 | Line = getLineNumber(VD->getLocation()); |
4296 | Column = getColumnNumber(VD->getLocation()); |
4297 | } |
4298 | SmallVector<int64_t, 13> Expr; |
4299 | llvm::DINode::DIFlags Flags = llvm::DINode::FlagZero; |
4300 | if (VD->isImplicit()) |
4301 | Flags |= llvm::DINode::FlagArtificial; |
4302 | |
4303 | auto Align = getDeclAlignIfRequired(VD, CGM.getContext()); |
4304 | |
4305 | unsigned AddressSpace = CGM.getContext().getTargetAddressSpace(VD->getType()); |
4306 | AppendAddressSpaceXDeref(AddressSpace, Expr); |
4307 | |
4308 | |
4309 | |
4310 | if (const auto *IPD = dyn_cast<ImplicitParamDecl>(VD)) { |
4311 | if (IPD->getParameterKind() == ImplicitParamDecl::CXXThis || |
4312 | IPD->getParameterKind() == ImplicitParamDecl::ObjCSelf) |
4313 | Flags |= llvm::DINode::FlagObjectPointer; |
4314 | } |
4315 | |
4316 | |
4317 | |
4318 | |
4319 | |
4320 | auto *Scope = cast<llvm::DIScope>(LexicalBlockStack.back()); |
4321 | StringRef Name = VD->getName(); |
4322 | if (!Name.empty()) { |
4323 | |
4324 | |
4325 | if (VD->isEscapingByref()) { |
4326 | |
4327 | CharUnits offset = CharUnits::fromQuantity(32); |
4328 | Expr.push_back(llvm::dwarf::DW_OP_plus_uconst); |
4329 | |
4330 | offset = CGM.getContext().toCharUnitsFromBits( |
4331 | CGM.getTarget().getPointerWidth(0)); |
4332 | Expr.push_back(offset.getQuantity()); |
4333 | Expr.push_back(llvm::dwarf::DW_OP_deref); |
4334 | Expr.push_back(llvm::dwarf::DW_OP_plus_uconst); |
4335 | |
4336 | offset = CGM.getContext().toCharUnitsFromBits(XOffset); |
4337 | Expr.push_back(offset.getQuantity()); |
4338 | } |
4339 | } else if (const auto *RT = dyn_cast<RecordType>(VD->getType())) { |
4340 | |
4341 | |
4342 | const RecordDecl *RD = RT->getDecl(); |
4343 | if (RD->isUnion() && RD->isAnonymousStructOrUnion()) { |
4344 | |
4345 | |
4346 | |
4347 | |
4348 | |
4349 | |
4350 | |
4351 | for (const auto *Field : RD->fields()) { |
4352 | llvm::DIType *FieldTy = getOrCreateType(Field->getType(), Unit); |
4353 | StringRef FieldName = Field->getName(); |
4354 | |
4355 | |
4356 | if (FieldName.empty() && !isa<RecordType>(Field->getType())) |
4357 | continue; |
4358 | |
4359 | |
4360 | auto FieldAlign = getDeclAlignIfRequired(Field, CGM.getContext()); |
4361 | auto *D = DBuilder.createAutoVariable( |
4362 | Scope, FieldName, Unit, Line, FieldTy, CGM.getLangOpts().Optimize, |
4363 | Flags | llvm::DINode::FlagArtificial, FieldAlign); |
4364 | |
4365 | |
4366 | DBuilder.insertDeclare(Storage, D, DBuilder.createExpression(Expr), |
4367 | llvm::DILocation::get(CGM.getLLVMContext(), Line, |
4368 | Column, Scope, |
4369 | CurInlinedAt), |
4370 | Builder.GetInsertBlock()); |
4371 | } |
4372 | } |
4373 | } |
4374 | |
4375 | |
4376 | |
4377 | |
4378 | if (UsePointerValue) { |
4379 | assert(std::find(Expr.begin(), Expr.end(), llvm::dwarf::DW_OP_deref) == |
4380 | Expr.end() && |
4381 | "Debug info already contains DW_OP_deref."); |
4382 | Expr.push_back(llvm::dwarf::DW_OP_deref); |
4383 | } |
4384 | |
4385 | |
4386 | llvm::DILocalVariable *D = nullptr; |
4387 | if (ArgNo) { |
4388 | llvm::DINodeArray Annotations = CollectBTFTagAnnotations(VD); |
4389 | D = DBuilder.createParameterVariable(Scope, Name, *ArgNo, Unit, Line, Ty, |
4390 | CGM.getLangOpts().Optimize, Flags, |
4391 | Annotations); |
4392 | } else { |
4393 | |
4394 | |
4395 | |
4396 | |
4397 | |
4398 | |
4399 | |
4400 | auto RemapCoroArgToLocalVar = [&]() -> llvm::DILocalVariable * { |
4401 | |
4402 | |
4403 | if (!isa<llvm::DISubprogram>(Scope) || !Scope->isDistinct()) |
4404 | return nullptr; |
4405 | |
4406 | auto Iter = llvm::find_if(CoroutineParameterMappings, [&](auto &Pair) { |
4407 | Stmt *StmtPtr = const_cast<Stmt *>(Pair.second); |
4408 | if (DeclStmt *DeclStmtPtr = dyn_cast<DeclStmt>(StmtPtr)) { |
4409 | DeclGroupRef DeclGroup = DeclStmtPtr->getDeclGroup(); |
4410 | Decl *Decl = DeclGroup.getSingleDecl(); |
4411 | if (VD == dyn_cast_or_null<VarDecl>(Decl)) |
4412 | return true; |
4413 | } |
4414 | return false; |
4415 | }); |
4416 | |
4417 | if (Iter != CoroutineParameterMappings.end()) { |
4418 | ParmVarDecl *PD = const_cast<ParmVarDecl *>(Iter->first); |
4419 | auto Iter2 = llvm::find_if(ParamDbgMappings, [&](auto &DbgPair) { |
4420 | return DbgPair.first == PD && DbgPair.second->getScope() == Scope; |
4421 | }); |
4422 | if (Iter2 != ParamDbgMappings.end()) |
4423 | return const_cast<llvm::DILocalVariable *>(Iter2->second); |
4424 | } |
4425 | return nullptr; |
4426 | }; |
4427 | |
4428 | |
4429 | D = RemapCoroArgToLocalVar(); |
4430 | |
4431 | if (!D) |
4432 | D = DBuilder.createAutoVariable(Scope, Name, Unit, Line, Ty, |
4433 | CGM.getLangOpts().Optimize, Flags, Align); |
4434 | } |
4435 | |
4436 | DBuilder.insertDeclare(Storage, D, DBuilder.createExpression(Expr), |
4437 | llvm::DILocation::get(CGM.getLLVMContext(), Line, |
4438 | Column, Scope, CurInlinedAt), |
4439 | Builder.GetInsertBlock()); |
4440 | |
4441 | return D; |
4442 | } |
4443 | |
4444 | llvm::DILocalVariable * |
4445 | CGDebugInfo::EmitDeclareOfAutoVariable(const VarDecl *VD, llvm::Value *Storage, |
4446 | CGBuilderTy &Builder, |
4447 | const bool UsePointerValue) { |
4448 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4449 | return EmitDeclare(VD, Storage, llvm::None, Builder, UsePointerValue); |
4450 | } |
4451 | |
4452 | void CGDebugInfo::EmitLabel(const LabelDecl *D, CGBuilderTy &Builder) { |
4453 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4454 | assert(!LexicalBlockStack.empty() && "Region stack mismatch, stack empty!"); |
4455 | |
4456 | if (D->hasAttr<NoDebugAttr>()) |
4457 | return; |
4458 | |
4459 | auto *Scope = cast<llvm::DIScope>(LexicalBlockStack.back()); |
4460 | llvm::DIFile *Unit = getOrCreateFile(D->getLocation()); |
4461 | |
4462 | |
4463 | unsigned Line = getLineNumber(D->getLocation()); |
4464 | unsigned Column = getColumnNumber(D->getLocation()); |
4465 | |
4466 | StringRef Name = D->getName(); |
4467 | |
4468 | |
4469 | auto *L = |
4470 | DBuilder.createLabel(Scope, Name, Unit, Line, CGM.getLangOpts().Optimize); |
4471 | |
4472 | |
4473 | DBuilder.insertLabel(L, |
4474 | llvm::DILocation::get(CGM.getLLVMContext(), Line, Column, |
4475 | Scope, CurInlinedAt), |
4476 | Builder.GetInsertBlock()); |
4477 | } |
4478 | |
4479 | llvm::DIType *CGDebugInfo::CreateSelfType(const QualType &QualTy, |
4480 | llvm::DIType *Ty) { |
4481 | llvm::DIType *CachedTy = getTypeOrNull(QualTy); |
4482 | if (CachedTy) |
4483 | Ty = CachedTy; |
4484 | return DBuilder.createObjectPointerType(Ty); |
4485 | } |
4486 | |
4487 | void CGDebugInfo::EmitDeclareOfBlockDeclRefVariable( |
4488 | const VarDecl *VD, llvm::Value *Storage, CGBuilderTy &Builder, |
4489 | const CGBlockInfo &blockInfo, llvm::Instruction *InsertPoint) { |
4490 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4491 | assert(!LexicalBlockStack.empty() && "Region stack mismatch, stack empty!"); |
4492 | |
4493 | if (Builder.GetInsertBlock() == nullptr) |
4494 | return; |
4495 | if (VD->hasAttr<NoDebugAttr>()) |
4496 | return; |
4497 | |
4498 | bool isByRef = VD->hasAttr<BlocksAttr>(); |
4499 | |
4500 | uint64_t XOffset = 0; |
4501 | llvm::DIFile *Unit = getOrCreateFile(VD->getLocation()); |
4502 | llvm::DIType *Ty; |
4503 | if (isByRef) |
4504 | Ty = EmitTypeForVarWithBlocksAttr(VD, &XOffset).WrappedType; |
4505 | else |
4506 | Ty = getOrCreateType(VD->getType(), Unit); |
4507 | |
4508 | |
4509 | |
4510 | if (const auto *IPD = dyn_cast<ImplicitParamDecl>(VD)) |
4511 | if (IPD->getParameterKind() == ImplicitParamDecl::ObjCSelf) |
4512 | Ty = CreateSelfType(VD->getType(), Ty); |
4513 | |
4514 | |
4515 | const unsigned Line = |
4516 | getLineNumber(VD->getLocation().isValid() ? VD->getLocation() : CurLoc); |
4517 | unsigned Column = getColumnNumber(VD->getLocation()); |
4518 | |
4519 | const llvm::DataLayout &target = CGM.getDataLayout(); |
4520 | |
4521 | CharUnits offset = CharUnits::fromQuantity( |
4522 | target.getStructLayout(blockInfo.StructureType) |
4523 | ->getElementOffset(blockInfo.getCapture(VD).getIndex())); |
4524 | |
4525 | SmallVector<int64_t, 9> addr; |
4526 | addr.push_back(llvm::dwarf::DW_OP_deref); |
4527 | addr.push_back(llvm::dwarf::DW_OP_plus_uconst); |
4528 | addr.push_back(offset.getQuantity()); |
4529 | if (isByRef) { |
4530 | addr.push_back(llvm::dwarf::DW_OP_deref); |
4531 | addr.push_back(llvm::dwarf::DW_OP_plus_uconst); |
4532 | |
4533 | offset = |
4534 | CGM.getContext().toCharUnitsFromBits(target.getPointerSizeInBits(0)); |
4535 | addr.push_back(offset.getQuantity()); |
4536 | addr.push_back(llvm::dwarf::DW_OP_deref); |
4537 | addr.push_back(llvm::dwarf::DW_OP_plus_uconst); |
4538 | |
4539 | offset = CGM.getContext().toCharUnitsFromBits(XOffset); |
4540 | addr.push_back(offset.getQuantity()); |
4541 | } |
4542 | |
4543 | |
4544 | auto Align = getDeclAlignIfRequired(VD, CGM.getContext()); |
4545 | auto *D = DBuilder.createAutoVariable( |
4546 | cast<llvm::DILocalScope>(LexicalBlockStack.back()), VD->getName(), Unit, |
4547 | Line, Ty, false, llvm::DINode::FlagZero, Align); |
4548 | |
4549 | |
4550 | auto DL = llvm::DILocation::get(CGM.getLLVMContext(), Line, Column, |
4551 | LexicalBlockStack.back(), CurInlinedAt); |
4552 | auto *Expr = DBuilder.createExpression(addr); |
4553 | if (InsertPoint) |
4554 | DBuilder.insertDeclare(Storage, D, Expr, DL, InsertPoint); |
4555 | else |
4556 | DBuilder.insertDeclare(Storage, D, Expr, DL, Builder.GetInsertBlock()); |
4557 | } |
4558 | |
4559 | llvm::DILocalVariable * |
4560 | CGDebugInfo::EmitDeclareOfArgVariable(const VarDecl *VD, llvm::Value *AI, |
4561 | unsigned ArgNo, CGBuilderTy &Builder) { |
4562 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4563 | return EmitDeclare(VD, AI, ArgNo, Builder); |
4564 | } |
4565 | |
4566 | namespace { |
4567 | struct BlockLayoutChunk { |
4568 | uint64_t OffsetInBits; |
4569 | const BlockDecl::Capture *Capture; |
4570 | }; |
4571 | bool operator<(const BlockLayoutChunk &l, const BlockLayoutChunk &r) { |
4572 | return l.OffsetInBits < r.OffsetInBits; |
4573 | } |
4574 | } |
4575 | |
4576 | void CGDebugInfo::collectDefaultFieldsForBlockLiteralDeclare( |
4577 | const CGBlockInfo &Block, const ASTContext &Context, SourceLocation Loc, |
4578 | const llvm::StructLayout &BlockLayout, llvm::DIFile *Unit, |
4579 | SmallVectorImpl<llvm::Metadata *> &Fields) { |
4580 | |
4581 | |
4582 | |
4583 | if (CGM.getLangOpts().OpenCL) { |
4584 | Fields.push_back(createFieldType("__size", Context.IntTy, Loc, AS_public, |
4585 | BlockLayout.getElementOffsetInBits(0), |
4586 | Unit, Unit)); |
4587 | Fields.push_back(createFieldType("__align", Context.IntTy, Loc, AS_public, |
4588 | BlockLayout.getElementOffsetInBits(1), |
4589 | Unit, Unit)); |
4590 | } else { |
4591 | Fields.push_back(createFieldType("__isa", Context.VoidPtrTy, Loc, AS_public, |
4592 | BlockLayout.getElementOffsetInBits(0), |
4593 | Unit, Unit)); |
4594 | Fields.push_back(createFieldType("__flags", Context.IntTy, Loc, AS_public, |
4595 | BlockLayout.getElementOffsetInBits(1), |
4596 | Unit, Unit)); |
4597 | Fields.push_back( |
4598 | createFieldType("__reserved", Context.IntTy, Loc, AS_public, |
4599 | BlockLayout.getElementOffsetInBits(2), Unit, Unit)); |
4600 | auto *FnTy = Block.getBlockExpr()->getFunctionType(); |
4601 | auto FnPtrType = CGM.getContext().getPointerType(FnTy->desugar()); |
4602 | Fields.push_back(createFieldType("__FuncPtr", FnPtrType, Loc, AS_public, |
4603 | BlockLayout.getElementOffsetInBits(3), |
4604 | Unit, Unit)); |
4605 | Fields.push_back(createFieldType( |
4606 | "__descriptor", |
4607 | Context.getPointerType(Block.NeedsCopyDispose |
4608 | ? Context.getBlockDescriptorExtendedType() |
4609 | : Context.getBlockDescriptorType()), |
4610 | Loc, AS_public, BlockLayout.getElementOffsetInBits(4), Unit, Unit)); |
4611 | } |
4612 | } |
4613 | |
4614 | void CGDebugInfo::EmitDeclareOfBlockLiteralArgVariable(const CGBlockInfo &block, |
4615 | StringRef Name, |
4616 | unsigned ArgNo, |
4617 | llvm::AllocaInst *Alloca, |
4618 | CGBuilderTy &Builder) { |
4619 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4620 | ASTContext &C = CGM.getContext(); |
4621 | const BlockDecl *blockDecl = block.getBlockDecl(); |
4622 | |
4623 | |
4624 | SourceLocation loc = blockDecl->getCaretLocation(); |
4625 | llvm::DIFile *tunit = getOrCreateFile(loc); |
4626 | unsigned line = getLineNumber(loc); |
4627 | unsigned column = getColumnNumber(loc); |
4628 | |
4629 | |
4630 | getDeclContextDescriptor(blockDecl); |
4631 | |
4632 | const llvm::StructLayout *blockLayout = |
4633 | CGM.getDataLayout().getStructLayout(block.StructureType); |
4634 | |
4635 | SmallVector<llvm::Metadata *, 16> fields; |
4636 | collectDefaultFieldsForBlockLiteralDeclare(block, C, loc, *blockLayout, tunit, |
4637 | fields); |
4638 | |
4639 | |
4640 | |
4641 | SmallVector<BlockLayoutChunk, 8> chunks; |
4642 | |
4643 | |
4644 | if (blockDecl->capturesCXXThis()) { |
4645 | BlockLayoutChunk chunk; |
4646 | chunk.OffsetInBits = |
4647 | blockLayout->getElementOffsetInBits(block.CXXThisIndex); |
4648 | chunk.Capture = nullptr; |
4649 | chunks.push_back(chunk); |
4650 | } |
4651 | |
4652 | |
4653 | for (const auto &capture : blockDecl->captures()) { |
4654 | const VarDecl *variable = capture.getVariable(); |
4655 | const CGBlockInfo::Capture &captureInfo = block.getCapture(variable); |
4656 | |
4657 | |
4658 | if (captureInfo.isConstant()) |
4659 | continue; |
4660 | |
4661 | BlockLayoutChunk chunk; |
4662 | chunk.OffsetInBits = |
4663 | blockLayout->getElementOffsetInBits(captureInfo.getIndex()); |
4664 | chunk.Capture = &capture; |
4665 | chunks.push_back(chunk); |
4666 | } |
4667 | |
4668 | |
4669 | llvm::array_pod_sort(chunks.begin(), chunks.end()); |
4670 | |
4671 | for (const BlockLayoutChunk &Chunk : chunks) { |
4672 | uint64_t offsetInBits = Chunk.OffsetInBits; |
4673 | const BlockDecl::Capture *capture = Chunk.Capture; |
4674 | |
4675 | |
4676 | if (!capture) { |
4677 | QualType type; |
4678 | if (auto *Method = |
4679 | cast_or_null<CXXMethodDecl>(blockDecl->getNonClosureContext())) |
4680 | type = Method->getThisType(); |
4681 | else if (auto *RDecl = dyn_cast<CXXRecordDecl>(blockDecl->getParent())) |
4682 | type = QualType(RDecl->getTypeForDecl(), 0); |
4683 | else |
4684 | llvm_unreachable("unexpected block declcontext"); |
4685 | |
4686 | fields.push_back(createFieldType("this", type, loc, AS_public, |
4687 | offsetInBits, tunit, tunit)); |
4688 | continue; |
4689 | } |
4690 | |
4691 | const VarDecl *variable = capture->getVariable(); |
4692 | StringRef name = variable->getName(); |
4693 | |
4694 | llvm::DIType *fieldType; |
4695 | if (capture->isByRef()) { |
4696 | TypeInfo PtrInfo = C.getTypeInfo(C.VoidPtrTy); |
4697 | auto Align = PtrInfo.isAlignRequired() ? PtrInfo.Align : 0; |
4698 | |
4699 | uint64_t xoffset; |
4700 | fieldType = |
4701 | EmitTypeForVarWithBlocksAttr(variable, &xoffset).BlockByRefWrapper; |
4702 | fieldType = DBuilder.createPointerType(fieldType, PtrInfo.Width); |
4703 | fieldType = DBuilder.createMemberType(tunit, name, tunit, line, |
4704 | PtrInfo.Width, Align, offsetInBits, |
4705 | llvm::DINode::FlagZero, fieldType); |
4706 | } else { |
4707 | auto Align = getDeclAlignIfRequired(variable, CGM.getContext()); |
4708 | fieldType = createFieldType(name, variable->getType(), loc, AS_public, |
4709 | offsetInBits, Align, tunit, tunit); |
4710 | } |
4711 | fields.push_back(fieldType); |
4712 | } |
4713 | |
4714 | SmallString<36> typeName; |
4715 | llvm::raw_svector_ostream(typeName) |
4716 | << "__block_literal_" << CGM.getUniqueBlockCount(); |
4717 | |
4718 | llvm::DINodeArray fieldsArray = DBuilder.getOrCreateArray(fields); |
4719 | |
4720 | llvm::DIType *type = |
4721 | DBuilder.createStructType(tunit, typeName.str(), tunit, line, |
4722 | CGM.getContext().toBits(block.BlockSize), 0, |
4723 | llvm::DINode::FlagZero, nullptr, fieldsArray); |
4724 | type = DBuilder.createPointerType(type, CGM.PointerWidthInBits); |
4725 | |
4726 | |
4727 | llvm::DINode::DIFlags flags = llvm::DINode::FlagArtificial; |
4728 | auto *scope = cast<llvm::DILocalScope>(LexicalBlockStack.back()); |
4729 | |
4730 | |
4731 | auto *debugVar = DBuilder.createParameterVariable( |
4732 | scope, Name, ArgNo, tunit, line, type, CGM.getLangOpts().Optimize, flags); |
4733 | |
4734 | |
4735 | DBuilder.insertDeclare(Alloca, debugVar, DBuilder.createExpression(), |
4736 | llvm::DILocation::get(CGM.getLLVMContext(), line, |
4737 | column, scope, CurInlinedAt), |
4738 | Builder.GetInsertBlock()); |
4739 | } |
4740 | |
4741 | llvm::DIDerivedType * |
4742 | CGDebugInfo::getOrCreateStaticDataMemberDeclarationOrNull(const VarDecl *D) { |
4743 | if (!D || !D->isStaticDataMember()) |
4744 | return nullptr; |
4745 | |
4746 | auto MI = StaticDataMemberCache.find(D->getCanonicalDecl()); |
4747 | if (MI != StaticDataMemberCache.end()) { |
4748 | assert(MI->second && "Static data member declaration should still exist"); |
4749 | return MI->second; |
4750 | } |
4751 | |
4752 | |
4753 | |
4754 | auto DC = D->getDeclContext(); |
4755 | auto *Ctxt = cast<llvm::DICompositeType>(getDeclContextDescriptor(D)); |
4756 | return CreateRecordStaticField(D, Ctxt, cast<RecordDecl>(DC)); |
4757 | } |
4758 | |
4759 | llvm::DIGlobalVariableExpression *CGDebugInfo::CollectAnonRecordDecls( |
4760 | const RecordDecl *RD, llvm::DIFile *Unit, unsigned LineNo, |
4761 | StringRef LinkageName, llvm::GlobalVariable *Var, llvm::DIScope *DContext) { |
4762 | llvm::DIGlobalVariableExpression *GVE = nullptr; |
4763 | |
4764 | for (const auto *Field : RD->fields()) { |
4765 | llvm::DIType *FieldTy = getOrCreateType(Field->getType(), Unit); |
4766 | StringRef FieldName = Field->getName(); |
4767 | |
4768 | |
4769 | if (FieldName.empty()) { |
4770 | if (const auto *RT = dyn_cast<RecordType>(Field->getType())) |
4771 | GVE = CollectAnonRecordDecls(RT->getDecl(), Unit, LineNo, LinkageName, |
4772 | Var, DContext); |
4773 | continue; |
4774 | } |
4775 | |
4776 | GVE = DBuilder.createGlobalVariableExpression( |
4777 | DContext, FieldName, LinkageName, Unit, LineNo, FieldTy, |
4778 | Var->hasLocalLinkage()); |
4779 | Var->addDebugInfo(GVE); |
4780 | } |
4781 | return GVE; |
4782 | } |
4783 | |
4784 | std::string CGDebugInfo::GetName(const Decl *D, bool Qualified) const { |
4785 | std::string Name; |
4786 | llvm::raw_string_ostream OS(Name); |
4787 | if (const NamedDecl *ND = dyn_cast<NamedDecl>(D)) { |
4788 | PrintingPolicy PP = getPrintingPolicy(); |
4789 | PP.PrintCanonicalTypes = true; |
4790 | PP.SuppressInlineNamespace = false; |
4791 | ND->getNameForDiagnostic(OS, PP, Qualified); |
4792 | } |
4793 | return Name; |
4794 | } |
4795 | |
4796 | void CGDebugInfo::EmitGlobalVariable(llvm::GlobalVariable *Var, |
4797 | const VarDecl *D) { |
4798 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4799 | if (D->hasAttr<NoDebugAttr>()) |
4800 | return; |
4801 | |
4802 | llvm::TimeTraceScope TimeScope("DebugGlobalVariable", [&]() { |
4803 | return GetName(D, true); |
4804 | }); |
4805 | |
4806 | |
4807 | |
4808 | auto Cached = DeclCache.find(D->getCanonicalDecl()); |
4809 | if (Cached != DeclCache.end()) |
4810 | return Var->addDebugInfo( |
4811 | cast<llvm::DIGlobalVariableExpression>(Cached->second)); |
4812 | |
4813 | |
4814 | llvm::DIFile *Unit = nullptr; |
4815 | llvm::DIScope *DContext = nullptr; |
4816 | unsigned LineNo; |
4817 | StringRef DeclName, LinkageName; |
4818 | QualType T; |
4819 | llvm::MDTuple *TemplateParameters = nullptr; |
4820 | collectVarDeclProps(D, Unit, LineNo, T, DeclName, LinkageName, |
4821 | TemplateParameters, DContext); |
4822 | |
4823 | |
4824 | |
4825 | llvm::DIGlobalVariableExpression *GVE = nullptr; |
4826 | |
4827 | |
4828 | |
4829 | |
4830 | if (T->isUnionType() && DeclName.empty()) { |
4831 | const RecordDecl *RD = T->castAs<RecordType>()->getDecl(); |
4832 | assert(RD->isAnonymousStructOrUnion() && |
4833 | "unnamed non-anonymous struct or union?"); |
4834 | GVE = CollectAnonRecordDecls(RD, Unit, LineNo, LinkageName, Var, DContext); |
4835 | } else { |
4836 | auto Align = getDeclAlignIfRequired(D, CGM.getContext()); |
4837 | |
4838 | SmallVector<int64_t, 4> Expr; |
4839 | unsigned AddressSpace = |
4840 | CGM.getContext().getTargetAddressSpace(D->getType()); |
4841 | if (CGM.getLangOpts().CUDA && CGM.getLangOpts().CUDAIsDevice) { |
4842 | if (D->hasAttr<CUDASharedAttr>()) |
4843 | AddressSpace = |
4844 | CGM.getContext().getTargetAddressSpace(LangAS::cuda_shared); |
4845 | else if (D->hasAttr<CUDAConstantAttr>()) |
4846 | AddressSpace = |
4847 | CGM.getContext().getTargetAddressSpace(LangAS::cuda_constant); |
4848 | } |
4849 | AppendAddressSpaceXDeref(AddressSpace, Expr); |
4850 | |
4851 | llvm::DINodeArray Annotations = CollectBTFTagAnnotations(D); |
4852 | GVE = DBuilder.createGlobalVariableExpression( |
4853 | DContext, DeclName, LinkageName, Unit, LineNo, getOrCreateType(T, Unit), |
4854 | Var->hasLocalLinkage(), true, |
4855 | Expr.empty() ? nullptr : DBuilder.createExpression(Expr), |
4856 | getOrCreateStaticDataMemberDeclarationOrNull(D), TemplateParameters, |
4857 | Align, Annotations); |
4858 | Var->addDebugInfo(GVE); |
4859 | } |
4860 | DeclCache[D->getCanonicalDecl()].reset(GVE); |
4861 | } |
4862 | |
4863 | void CGDebugInfo::EmitGlobalVariable(const ValueDecl *VD, const APValue &Init) { |
4864 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4865 | if (VD->hasAttr<NoDebugAttr>()) |
4866 | return; |
4867 | llvm::TimeTraceScope TimeScope("DebugConstGlobalVariable", [&]() { |
4868 | return GetName(VD, true); |
4869 | }); |
4870 | |
4871 | auto Align = getDeclAlignIfRequired(VD, CGM.getContext()); |
4872 | |
4873 | llvm::DIFile *Unit = getOrCreateFile(VD->getLocation()); |
4874 | StringRef Name = VD->getName(); |
4875 | llvm::DIType *Ty = getOrCreateType(VD->getType(), Unit); |
4876 | |
4877 | if (const auto *ECD = dyn_cast<EnumConstantDecl>(VD)) { |
4878 | const auto *ED = cast<EnumDecl>(ECD->getDeclContext()); |
4879 | assert(isa<EnumType>(ED->getTypeForDecl()) && "Enum without EnumType?"); |
4880 | |
4881 | if (CGM.getCodeGenOpts().EmitCodeView) { |
4882 | |
4883 | |
4884 | |
4885 | |
4886 | if (isa<RecordDecl>(ED->getDeclContext())) |
4887 | return; |
4888 | } else { |
4889 | |
4890 | |
4891 | |
4892 | llvm::DIType *EDTy = |
4893 | getOrCreateType(QualType(ED->getTypeForDecl(), 0), Unit); |
4894 | assert (EDTy->getTag() == llvm::dwarf::DW_TAG_enumeration_type); |
4895 | (void)EDTy; |
4896 | return; |
4897 | } |
4898 | } |
4899 | |
4900 | |
4901 | if (isa<FunctionDecl>(VD->getDeclContext())) |
4902 | return; |
4903 | |
4904 | VD = cast<ValueDecl>(VD->getCanonicalDecl()); |
4905 | auto *VarD = dyn_cast<VarDecl>(VD); |
4906 | if (VarD && VarD->isStaticDataMember()) { |
4907 | auto *RD = cast<RecordDecl>(VarD->getDeclContext()); |
4908 | getDeclContextDescriptor(VarD); |
4909 | |
4910 | |
4911 | |
4912 | |
4913 | RetainedTypes.push_back( |
4914 | CGM.getContext().getRecordType(RD).getAsOpaquePtr()); |
4915 | |
4916 | return; |
4917 | } |
4918 | llvm::DIScope *DContext = getDeclContextDescriptor(VD); |
4919 | |
4920 | auto &GV = DeclCache[VD]; |
4921 | if (GV) |
4922 | return; |
4923 | llvm::DIExpression *InitExpr = nullptr; |
4924 | if (CGM.getContext().getTypeSize(VD->getType()) <= 64) { |
4925 | |
4926 | if (Init.isInt()) |
4927 | InitExpr = |
4928 | DBuilder.createConstantValueExpression(Init.getInt().getExtValue()); |
4929 | else if (Init.isFloat()) |
4930 | InitExpr = DBuilder.createConstantValueExpression( |
4931 | Init.getFloat().bitcastToAPInt().getZExtValue()); |
4932 | } |
4933 | |
4934 | llvm::MDTuple *TemplateParameters = nullptr; |
4935 | |
4936 | if (isa<VarTemplateSpecializationDecl>(VD)) |
4937 | if (VarD) { |
4938 | llvm::DINodeArray parameterNodes = CollectVarTemplateParams(VarD, &*Unit); |
4939 | TemplateParameters = parameterNodes.get(); |
4940 | } |
4941 | |
4942 | GV.reset(DBuilder.createGlobalVariableExpression( |
4943 | DContext, Name, StringRef(), Unit, getLineNumber(VD->getLocation()), Ty, |
4944 | true, true, InitExpr, getOrCreateStaticDataMemberDeclarationOrNull(VarD), |
4945 | TemplateParameters, Align)); |
4946 | } |
4947 | |
4948 | void CGDebugInfo::EmitExternalVariable(llvm::GlobalVariable *Var, |
4949 | const VarDecl *D) { |
4950 | assert(CGM.getCodeGenOpts().hasReducedDebugInfo()); |
4951 | if (D->hasAttr<NoDebugAttr>()) |
4952 | return; |
4953 | |
4954 | auto Align = getDeclAlignIfRequired(D, CGM.getContext()); |
4955 | llvm::DIFile *Unit = getOrCreateFile(D->getLocation()); |
4956 | StringRef Name = D->getName(); |
4957 | llvm::DIType *Ty = getOrCreateType(D->getType(), Unit); |
4958 | |
4959 | llvm::DIScope *DContext = getDeclContextDescriptor(D); |
4960 | llvm::DIGlobalVariableExpression *GVE = |
4961 | DBuilder.createGlobalVariableExpression( |
4962 | DContext, Name, StringRef(), Unit, getLineNumber(D->getLocation()), |
4963 | Ty, false, false, nullptr, nullptr, nullptr, Align); |
4964 | Var->addDebugInfo(GVE); |
4965 | } |
4966 | |
4967 | llvm::DIScope *CGDebugInfo::getCurrentContextDescriptor(const Decl *D) { |
4968 | if (!LexicalBlockStack.empty()) |
4969 | return LexicalBlockStack.back(); |
4970 | llvm::DIScope *Mod = getParentModuleOrNull(D); |
4971 | return getContextDescriptor(D, Mod ? Mod : TheCU); |
4972 | } |
4973 | |
4974 | void CGDebugInfo::EmitUsingDirective(const UsingDirectiveDecl &UD) { |
4975 | if (!CGM.getCodeGenOpts().hasReducedDebugInfo()) |
4976 | return; |
4977 | const NamespaceDecl *NSDecl = UD.getNominatedNamespace(); |
4978 | if (!NSDecl->isAnonymousNamespace() || |
4979 | CGM.getCodeGenOpts().DebugExplicitImport) { |
4980 | auto Loc = UD.getLocation(); |
4981 | if (!Loc.isValid()) |
4982 | Loc = CurLoc; |
4983 | DBuilder.createImportedModule( |
4984 | getCurrentContextDescriptor(cast<Decl>(UD.getDeclContext())), |
4985 | getOrCreateNamespace(NSDecl), getOrCreateFile(Loc), getLineNumber(Loc)); |
4986 | } |
4987 | } |
4988 | |
4989 | void CGDebugInfo::EmitUsingShadowDecl(const UsingShadowDecl &USD) { |
4990 | if (llvm::DINode *Target = |
4991 | getDeclarationOrDefinition(USD.getUnderlyingDecl())) { |
| 3 | | Calling 'CGDebugInfo::getDeclarationOrDefinition' | |
|
4992 | auto Loc = USD.getLocation(); |
4993 | DBuilder.createImportedDeclaration( |
4994 | getCurrentContextDescriptor(cast<Decl>(USD.getDeclContext())), Target, |
4995 | getOrCreateFile(Loc), getLineNumber(Loc)); |
4996 | } |
4997 | } |
4998 | |
4999 | void CGDebugInfo::EmitUsingDecl(const UsingDecl &UD) { |
5000 | if (!CGM.getCodeGenOpts().hasReducedDebugInfo()) |
5001 | return; |
5002 | assert(UD.shadow_size() && |
5003 | "We shouldn't be codegening an invalid UsingDecl containing no decls"); |
5004 | |
5005 | for (const auto *USD : UD.shadows()) { |
5006 | |
5007 | |
5008 | |
5009 | |
5010 | if (const auto *FD = dyn_cast<FunctionDecl>(USD->getUnderlyingDecl())) |
5011 | if (const auto *AT = FD->getType() |
5012 | ->castAs<FunctionProtoType>() |
5013 | ->getContainedAutoType()) |
5014 | if (AT->getDeducedType().isNull()) |
5015 | continue; |
5016 | |
5017 | EmitUsingShadowDecl(*USD); |
5018 | |
5019 | |
5020 | break; |
5021 | } |
5022 | } |
5023 | |
5024 | void CGDebugInfo::EmitUsingEnumDecl(const UsingEnumDecl &UD) { |
5025 | if (!CGM.getCodeGenOpts().hasReducedDebugInfo()) |
| |
5026 | return; |
5027 | assert(UD.shadow_size() && |
5028 | "We shouldn't be codegening an invalid UsingEnumDecl" |
5029 | " containing no decls"); |
5030 | |
5031 | for (const auto *USD : UD.shadows()) |
5032 | EmitUsingShadowDecl(*USD); |
| 2 | | Calling 'CGDebugInfo::EmitUsingShadowDecl' | |
|
5033 | } |
5034 | |
5035 | void CGDebugInfo::EmitImportDecl(const ImportDecl &ID) { |
5036 | if (CGM.getCodeGenOpts().getDebuggerTuning() != llvm::DebuggerKind::LLDB) |
5037 | return; |
5038 | if (Module *M = ID.getImportedModule()) { |
5039 | auto Info = ASTSourceDescriptor(*M); |
5040 | auto Loc = ID.getLocation(); |
5041 | DBuilder.createImportedDeclaration( |
5042 | getCurrentContextDescriptor(cast<Decl>(ID.getDeclContext())), |
5043 | getOrCreateModuleRef(Info, DebugTypeExtRefs), getOrCreateFile(Loc), |
5044 | getLineNumber(Loc)); |
5045 | } |
5046 | } |
5047 | |
5048 | llvm::DIImportedEntity * |
5049 | CGDebugInfo::EmitNamespaceAlias(const NamespaceAliasDecl &NA) { |
5050 | if (!CGM.getCodeGenOpts().hasReducedDebugInfo()) |
5051 | return nullptr; |
5052 | auto &VH = NamespaceAliasCache[&NA]; |
5053 | if (VH) |
5054 | return cast<llvm::DIImportedEntity>(VH); |
5055 | llvm::DIImportedEntity *R; |
5056 | auto Loc = NA.getLocation(); |
5057 | if (const auto *Underlying = |
5058 | dyn_cast<NamespaceAliasDecl>(NA.getAliasedNamespace())) |
5059 | |
5060 | R = DBuilder.createImportedDeclaration( |
5061 | getCurrentContextDescriptor(cast<Decl>(NA.getDeclContext())), |
5062 | EmitNamespaceAlias(*Underlying), getOrCreateFile(Loc), |
5063 | getLineNumber(Loc), NA.getName()); |
5064 | else |
5065 | R = DBuilder.createImportedDeclaration( |
5066 | getCurrentContextDescriptor(cast<Decl>(NA.getDeclContext())), |
5067 | getOrCreateNamespace(cast<NamespaceDecl>(NA.getAliasedNamespace())), |
5068 | getOrCreateFile(Loc), getLineNumber(Loc), NA.getName()); |
5069 | VH.reset(R); |
5070 | return R; |
5071 | } |
5072 | |
5073 | llvm::DINamespace * |
5074 | CGDebugInfo::getOrCreateNamespace(const NamespaceDecl *NSDecl) { |
5075 | |
5076 | |
5077 | |
5078 | auto I = NamespaceCache.find(NSDecl); |
5079 | if (I != NamespaceCache.end()) |
5080 | return cast<llvm::DINamespace>(I->second); |
5081 | |
5082 | llvm::DIScope *Context = getDeclContextDescriptor(NSDecl); |
5083 | |
5084 | llvm::DINamespace *NS = |
5085 | DBuilder.createNameSpace(Context, NSDecl->getName(), NSDecl->isInline()); |
5086 | NamespaceCache[NSDecl].reset(NS); |
5087 | return NS; |
5088 | } |
5089 | |
5090 | void CGDebugInfo::setDwoId(uint64_t Signature) { |
5091 | assert(TheCU && "no main compile unit"); |
5092 | TheCU->setDWOId(Signature); |
5093 | } |
5094 | |
5095 | void CGDebugInfo::finalize() { |
5096 | |
5097 | |
5098 | for (size_t i = 0; i != ObjCInterfaceCache.size(); ++i) { |
5099 | ObjCInterfaceCacheEntry E = ObjCInterfaceCache[i]; |
5100 | llvm::DIType *Ty = E.Type->getDecl()->getDefinition() |
5101 | ? CreateTypeDefinition(E.Type, E.Unit) |
5102 | : E.Decl; |
5103 | DBuilder.replaceTemporary(llvm::TempDIType(E.Decl), Ty); |
5104 | } |
5105 | |
5106 | |
5107 | for (const auto &P : ObjCMethodCache) { |
5108 | if (P.second.empty()) |
5109 | continue; |
5110 | |
5111 | QualType QTy(P.first->getTypeForDecl(), 0); |
5112 | auto It = TypeCache.find(QTy.getAsOpaquePtr()); |
5113 | assert(It != TypeCache.end()); |
5114 | |
5115 | llvm::DICompositeType *InterfaceDecl = |
5116 | cast<llvm::DICompositeType>(It->second); |
5117 | |
5118 | auto CurElts = InterfaceDecl->getElements(); |
5119 | SmallVector<llvm::Metadata *, 16> EltTys(CurElts.begin(), CurElts.end()); |
5120 | |
5121 | |
5122 | for (auto &SubprogramDirect : P.second) |
5123 | if (CGM.getCodeGenOpts().DwarfVersion >= 5 || SubprogramDirect.getInt()) |
5124 | EltTys.push_back(SubprogramDirect.getPointer()); |
5125 | |
5126 | llvm::DINodeArray Elements = DBuilder.getOrCreateArray(EltTys); |
5127 | DBuilder.replaceArrays(InterfaceDecl, Elements); |
5128 | } |
5129 | |
5130 | for (const auto &P : ReplaceMap) { |
5131 | assert(P.second); |
5132 | auto *Ty = cast<llvm::DIType>(P.second); |
5133 | assert(Ty->isForwardDecl()); |
5134 | |
5135 | auto It = TypeCache.find(P.first); |
5136 | assert(It != TypeCache.end()); |
5137 | assert(It->second); |
5138 | |
5139 | DBuilder.replaceTemporary(llvm::TempDIType(Ty), |
5140 | cast<llvm::DIType>(It->second)); |
5141 | } |
5142 | |
5143 | for (const auto &P : FwdDeclReplaceMap) { |
5144 | assert(P.second); |
5145 | llvm::TempMDNode FwdDecl(cast<llvm::MDNode>(P.second)); |
5146 | llvm::Metadata *Repl; |
5147 | |
5148 | auto It = DeclCache.find(P.first); |
5149 | |
5150 | |
5151 | |
5152 | if (It == DeclCache.end()) |
5153 | Repl = P.second; |
5154 | else |
5155 | Repl = It->second; |
5156 | |
5157 | if (auto *GVE = dyn_cast_or_null<llvm::DIGlobalVariableExpression>(Repl)) |
5158 | Repl = GVE->getVariable(); |
5159 | DBuilder.replaceTemporary(std::move(FwdDecl), cast<llvm::MDNode>(Repl)); |
5160 | } |
5161 | |
5162 | |
5163 | |
5164 | for (auto &RT : RetainedTypes) |
5165 | if (auto MD = TypeCache[RT]) |
5166 | DBuilder.retainType(cast<llvm::DIType>(MD)); |
5167 | |
5168 | DBuilder.finalize(); |
5169 | } |
5170 | |
5171 | |
5172 | void CGDebugInfo::EmitExplicitCastType(QualType Ty) { |
5173 | if (CGM.getCodeGenOpts().hasReducedDebugInfo()) |
5174 | if (auto *DieTy = getOrCreateType(Ty, TheCU->getFile())) |
5175 | DBuilder.retainType(DieTy); |
5176 | } |
5177 | |
5178 | void CGDebugInfo::EmitAndRetainType(QualType Ty) { |
5179 | if (CGM.getCodeGenOpts().hasMaybeUnusedDebugInfo()) |
5180 | if (auto *DieTy = getOrCreateType(Ty, TheCU->getFile())) |
5181 | DBuilder.retainType(DieTy); |
5182 | } |
5183 | |
5184 | llvm::DebugLoc CGDebugInfo::SourceLocToDebugLoc(SourceLocation Loc) { |
5185 | if (LexicalBlockStack.empty()) |
5186 | return llvm::DebugLoc(); |
5187 | |
5188 | llvm::MDNode *Scope = LexicalBlockStack.back(); |
5189 | return llvm::DILocation::get(CGM.getLLVMContext(), getLineNumber(Loc), |
5190 | getColumnNumber(Loc), Scope); |
5191 | } |
5192 | |
5193 | llvm::DINode::DIFlags CGDebugInfo::getCallSiteRelatedAttrs() const { |
5194 | |
5195 | |
5196 | if (!CGM.getLangOpts().Optimize || DebugKind == codegenoptions::NoDebugInfo || |
5197 | DebugKind == codegenoptions::LocTrackingOnly) |
5198 | return llvm::DINode::FlagZero; |
5199 | |
5200 | |
5201 | |
5202 | |
5203 | bool SupportsDWARFv4Ext = |
5204 | CGM.getCodeGenOpts().DwarfVersion == 4 && |
5205 | (CGM.getCodeGenOpts().getDebuggerTuning() == llvm::DebuggerKind::LLDB || |
5206 | CGM.getCodeGenOpts().getDebuggerTuning() == llvm::DebuggerKind::GDB); |
5207 | |
5208 | if (!SupportsDWARFv4Ext && CGM.getCodeGenOpts().DwarfVersion < 5) |
5209 | return llvm::DINode::FlagZero; |
5210 | |
5211 | return llvm::DINode::FlagAllCallsDescribed; |
5212 | } |