Bug Summary

File:clang/lib/Serialization/ASTWriter.cpp
Warning:line 1735, column 19
Potential memory leak

Annotated Source Code

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clang -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name ASTWriter.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 -mthread-model posix -mframe-pointer=none -relaxed-aliasing -fmath-errno -fno-rounding-math -masm-verbose -mconstructor-aliases -munwind-tables -target-cpu x86-64 -dwarf-column-info -fno-split-dwarf-inlining -debugger-tuning=gdb -ffunction-sections -fdata-sections -resource-dir /usr/lib/llvm-10/lib/clang/10.0.0 -D CLANG_VENDOR="Debian " -D _DEBUG -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I /build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/build-llvm/tools/clang/lib/Serialization -I /build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization -I /build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/include -I /build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/build-llvm/tools/clang/include -I /build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/build-llvm/include -I /build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/llvm/include -U NDEBUG -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/c++/6.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/x86_64-linux-gnu/c++/6.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/x86_64-linux-gnu/c++/6.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/c++/6.3.0/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-10/lib/clang/10.0.0/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-comment -std=c++14 -fdeprecated-macro -fdebug-compilation-dir /build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/build-llvm/tools/clang/lib/Serialization -fdebug-prefix-map=/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd=. -ferror-limit 19 -fmessage-length 0 -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -fobjc-runtime=gcc -fno-common -fdiagnostics-show-option -vectorize-loops -vectorize-slp -analyzer-output=html -analyzer-config stable-report-filename=true -faddrsig -o /tmp/scan-build-2020-01-13-084841-49055-1 -x c++ /build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp
1//===- ASTWriter.cpp - AST File Writer ------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file defines the ASTWriter class, which writes AST files.
10//
11//===----------------------------------------------------------------------===//
12
13#include "clang/AST/OpenMPClause.h"
14#include "clang/Serialization/ASTRecordWriter.h"
15#include "ASTCommon.h"
16#include "ASTReaderInternals.h"
17#include "MultiOnDiskHashTable.h"
18#include "clang/AST/AbstractTypeWriter.h"
19#include "clang/AST/ASTContext.h"
20#include "clang/AST/ASTUnresolvedSet.h"
21#include "clang/AST/Attr.h"
22#include "clang/AST/Decl.h"
23#include "clang/AST/DeclBase.h"
24#include "clang/AST/DeclCXX.h"
25#include "clang/AST/DeclContextInternals.h"
26#include "clang/AST/DeclFriend.h"
27#include "clang/AST/DeclObjC.h"
28#include "clang/AST/DeclTemplate.h"
29#include "clang/AST/DeclarationName.h"
30#include "clang/AST/Expr.h"
31#include "clang/AST/ExprCXX.h"
32#include "clang/AST/LambdaCapture.h"
33#include "clang/AST/NestedNameSpecifier.h"
34#include "clang/AST/RawCommentList.h"
35#include "clang/AST/TemplateName.h"
36#include "clang/AST/Type.h"
37#include "clang/AST/TypeLocVisitor.h"
38#include "clang/Basic/Diagnostic.h"
39#include "clang/Basic/DiagnosticOptions.h"
40#include "clang/Basic/FileManager.h"
41#include "clang/Basic/FileSystemOptions.h"
42#include "clang/Basic/IdentifierTable.h"
43#include "clang/Basic/LLVM.h"
44#include "clang/Basic/Lambda.h"
45#include "clang/Basic/LangOptions.h"
46#include "clang/Basic/Module.h"
47#include "clang/Basic/ObjCRuntime.h"
48#include "clang/Basic/OpenCLOptions.h"
49#include "clang/Basic/SourceLocation.h"
50#include "clang/Basic/SourceManager.h"
51#include "clang/Basic/SourceManagerInternals.h"
52#include "clang/Basic/Specifiers.h"
53#include "clang/Basic/TargetInfo.h"
54#include "clang/Basic/TargetOptions.h"
55#include "clang/Basic/Version.h"
56#include "clang/Lex/HeaderSearch.h"
57#include "clang/Lex/HeaderSearchOptions.h"
58#include "clang/Lex/MacroInfo.h"
59#include "clang/Lex/ModuleMap.h"
60#include "clang/Lex/PreprocessingRecord.h"
61#include "clang/Lex/Preprocessor.h"
62#include "clang/Lex/PreprocessorOptions.h"
63#include "clang/Lex/Token.h"
64#include "clang/Sema/IdentifierResolver.h"
65#include "clang/Sema/ObjCMethodList.h"
66#include "clang/Sema/Sema.h"
67#include "clang/Sema/Weak.h"
68#include "clang/Serialization/ASTReader.h"
69#include "clang/Serialization/InMemoryModuleCache.h"
70#include "clang/Serialization/ModuleFile.h"
71#include "clang/Serialization/ModuleFileExtension.h"
72#include "clang/Serialization/SerializationDiagnostic.h"
73#include "llvm/ADT/APFloat.h"
74#include "llvm/ADT/APInt.h"
75#include "llvm/ADT/APSInt.h"
76#include "llvm/ADT/ArrayRef.h"
77#include "llvm/ADT/DenseMap.h"
78#include "llvm/ADT/Hashing.h"
79#include "llvm/ADT/Optional.h"
80#include "llvm/ADT/PointerIntPair.h"
81#include "llvm/ADT/STLExtras.h"
82#include "llvm/ADT/ScopeExit.h"
83#include "llvm/ADT/SmallSet.h"
84#include "llvm/ADT/SmallString.h"
85#include "llvm/ADT/SmallVector.h"
86#include "llvm/ADT/StringMap.h"
87#include "llvm/ADT/StringRef.h"
88#include "llvm/Bitstream/BitCodes.h"
89#include "llvm/Bitstream/BitstreamWriter.h"
90#include "llvm/Support/Casting.h"
91#include "llvm/Support/Compression.h"
92#include "llvm/Support/DJB.h"
93#include "llvm/Support/Endian.h"
94#include "llvm/Support/EndianStream.h"
95#include "llvm/Support/Error.h"
96#include "llvm/Support/ErrorHandling.h"
97#include "llvm/Support/MemoryBuffer.h"
98#include "llvm/Support/OnDiskHashTable.h"
99#include "llvm/Support/Path.h"
100#include "llvm/Support/SHA1.h"
101#include "llvm/Support/VersionTuple.h"
102#include "llvm/Support/raw_ostream.h"
103#include <algorithm>
104#include <cassert>
105#include <cstdint>
106#include <cstdlib>
107#include <cstring>
108#include <ctime>
109#include <deque>
110#include <limits>
111#include <memory>
112#include <queue>
113#include <tuple>
114#include <utility>
115#include <vector>
116
117using namespace clang;
118using namespace clang::serialization;
119
120template <typename T, typename Allocator>
121static StringRef bytes(const std::vector<T, Allocator> &v) {
122 if (v.empty()) return StringRef();
123 return StringRef(reinterpret_cast<const char*>(&v[0]),
124 sizeof(T) * v.size());
125}
126
127template <typename T>
128static StringRef bytes(const SmallVectorImpl<T> &v) {
129 return StringRef(reinterpret_cast<const char*>(v.data()),
130 sizeof(T) * v.size());
131}
132
133//===----------------------------------------------------------------------===//
134// Type serialization
135//===----------------------------------------------------------------------===//
136
137static TypeCode getTypeCodeForTypeClass(Type::TypeClass id) {
138 switch (id) {
139#define TYPE_BIT_CODE(CLASS_ID, CODE_ID, CODE_VALUE) \
140 case Type::CLASS_ID: return TYPE_##CODE_ID;
141#include "clang/Serialization/TypeBitCodes.def"
142 case Type::Builtin:
143 llvm_unreachable("shouldn't be serializing a builtin type this way")::llvm::llvm_unreachable_internal("shouldn't be serializing a builtin type this way"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 143)
;
144 }
145 llvm_unreachable("bad type kind")::llvm::llvm_unreachable_internal("bad type kind", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 145)
;
146}
147
148namespace {
149
150class ASTTypeWriter {
151 ASTWriter &Writer;
152 ASTWriter::RecordData Record;
153 ASTRecordWriter BasicWriter;
154
155public:
156 ASTTypeWriter(ASTWriter &Writer)
157 : Writer(Writer), BasicWriter(Writer, Record) {}
158
159 uint64_t write(QualType T) {
160 if (T.hasLocalNonFastQualifiers()) {
161 Qualifiers Qs = T.getLocalQualifiers();
162 BasicWriter.writeQualType(T.getLocalUnqualifiedType());
163 BasicWriter.writeQualifiers(Qs);
164 return BasicWriter.Emit(TYPE_EXT_QUAL, Writer.getTypeExtQualAbbrev());
165 }
166
167 const Type *typePtr = T.getTypePtr();
168 serialization::AbstractTypeWriter<ASTRecordWriter> atw(BasicWriter);
169 atw.write(typePtr);
170 return BasicWriter.Emit(getTypeCodeForTypeClass(typePtr->getTypeClass()),
171 /*abbrev*/ 0);
172 }
173};
174
175class TypeLocWriter : public TypeLocVisitor<TypeLocWriter> {
176 ASTRecordWriter &Record;
177
178public:
179 TypeLocWriter(ASTRecordWriter &Record) : Record(Record) {}
180
181#define ABSTRACT_TYPELOC(CLASS, PARENT)
182#define TYPELOC(CLASS, PARENT) \
183 void Visit##CLASS##TypeLoc(CLASS##TypeLoc TyLoc);
184#include "clang/AST/TypeLocNodes.def"
185
186 void VisitArrayTypeLoc(ArrayTypeLoc TyLoc);
187 void VisitFunctionTypeLoc(FunctionTypeLoc TyLoc);
188};
189
190} // namespace
191
192void TypeLocWriter::VisitQualifiedTypeLoc(QualifiedTypeLoc TL) {
193 // nothing to do
194}
195
196void TypeLocWriter::VisitBuiltinTypeLoc(BuiltinTypeLoc TL) {
197 Record.AddSourceLocation(TL.getBuiltinLoc());
198 if (TL.needsExtraLocalData()) {
199 Record.push_back(TL.getWrittenTypeSpec());
200 Record.push_back(TL.getWrittenSignSpec());
201 Record.push_back(TL.getWrittenWidthSpec());
202 Record.push_back(TL.hasModeAttr());
203 }
204}
205
206void TypeLocWriter::VisitComplexTypeLoc(ComplexTypeLoc TL) {
207 Record.AddSourceLocation(TL.getNameLoc());
208}
209
210void TypeLocWriter::VisitPointerTypeLoc(PointerTypeLoc TL) {
211 Record.AddSourceLocation(TL.getStarLoc());
212}
213
214void TypeLocWriter::VisitDecayedTypeLoc(DecayedTypeLoc TL) {
215 // nothing to do
216}
217
218void TypeLocWriter::VisitAdjustedTypeLoc(AdjustedTypeLoc TL) {
219 // nothing to do
220}
221
222void TypeLocWriter::VisitBlockPointerTypeLoc(BlockPointerTypeLoc TL) {
223 Record.AddSourceLocation(TL.getCaretLoc());
224}
225
226void TypeLocWriter::VisitLValueReferenceTypeLoc(LValueReferenceTypeLoc TL) {
227 Record.AddSourceLocation(TL.getAmpLoc());
228}
229
230void TypeLocWriter::VisitRValueReferenceTypeLoc(RValueReferenceTypeLoc TL) {
231 Record.AddSourceLocation(TL.getAmpAmpLoc());
232}
233
234void TypeLocWriter::VisitMemberPointerTypeLoc(MemberPointerTypeLoc TL) {
235 Record.AddSourceLocation(TL.getStarLoc());
236 Record.AddTypeSourceInfo(TL.getClassTInfo());
237}
238
239void TypeLocWriter::VisitArrayTypeLoc(ArrayTypeLoc TL) {
240 Record.AddSourceLocation(TL.getLBracketLoc());
241 Record.AddSourceLocation(TL.getRBracketLoc());
242 Record.push_back(TL.getSizeExpr() ? 1 : 0);
243 if (TL.getSizeExpr())
244 Record.AddStmt(TL.getSizeExpr());
245}
246
247void TypeLocWriter::VisitConstantArrayTypeLoc(ConstantArrayTypeLoc TL) {
248 VisitArrayTypeLoc(TL);
249}
250
251void TypeLocWriter::VisitIncompleteArrayTypeLoc(IncompleteArrayTypeLoc TL) {
252 VisitArrayTypeLoc(TL);
253}
254
255void TypeLocWriter::VisitVariableArrayTypeLoc(VariableArrayTypeLoc TL) {
256 VisitArrayTypeLoc(TL);
257}
258
259void TypeLocWriter::VisitDependentSizedArrayTypeLoc(
260 DependentSizedArrayTypeLoc TL) {
261 VisitArrayTypeLoc(TL);
262}
263
264void TypeLocWriter::VisitDependentAddressSpaceTypeLoc(
265 DependentAddressSpaceTypeLoc TL) {
266 Record.AddSourceLocation(TL.getAttrNameLoc());
267 SourceRange range = TL.getAttrOperandParensRange();
268 Record.AddSourceLocation(range.getBegin());
269 Record.AddSourceLocation(range.getEnd());
270 Record.AddStmt(TL.getAttrExprOperand());
271}
272
273void TypeLocWriter::VisitDependentSizedExtVectorTypeLoc(
274 DependentSizedExtVectorTypeLoc TL) {
275 Record.AddSourceLocation(TL.getNameLoc());
276}
277
278void TypeLocWriter::VisitVectorTypeLoc(VectorTypeLoc TL) {
279 Record.AddSourceLocation(TL.getNameLoc());
280}
281
282void TypeLocWriter::VisitDependentVectorTypeLoc(
283 DependentVectorTypeLoc TL) {
284 Record.AddSourceLocation(TL.getNameLoc());
285}
286
287void TypeLocWriter::VisitExtVectorTypeLoc(ExtVectorTypeLoc TL) {
288 Record.AddSourceLocation(TL.getNameLoc());
289}
290
291void TypeLocWriter::VisitFunctionTypeLoc(FunctionTypeLoc TL) {
292 Record.AddSourceLocation(TL.getLocalRangeBegin());
293 Record.AddSourceLocation(TL.getLParenLoc());
294 Record.AddSourceLocation(TL.getRParenLoc());
295 Record.AddSourceRange(TL.getExceptionSpecRange());
296 Record.AddSourceLocation(TL.getLocalRangeEnd());
297 for (unsigned i = 0, e = TL.getNumParams(); i != e; ++i)
298 Record.AddDeclRef(TL.getParam(i));
299}
300
301void TypeLocWriter::VisitFunctionProtoTypeLoc(FunctionProtoTypeLoc TL) {
302 VisitFunctionTypeLoc(TL);
303}
304
305void TypeLocWriter::VisitFunctionNoProtoTypeLoc(FunctionNoProtoTypeLoc TL) {
306 VisitFunctionTypeLoc(TL);
307}
308
309void TypeLocWriter::VisitUnresolvedUsingTypeLoc(UnresolvedUsingTypeLoc TL) {
310 Record.AddSourceLocation(TL.getNameLoc());
311}
312
313void TypeLocWriter::VisitTypedefTypeLoc(TypedefTypeLoc TL) {
314 Record.AddSourceLocation(TL.getNameLoc());
315}
316
317void TypeLocWriter::VisitObjCTypeParamTypeLoc(ObjCTypeParamTypeLoc TL) {
318 if (TL.getNumProtocols()) {
319 Record.AddSourceLocation(TL.getProtocolLAngleLoc());
320 Record.AddSourceLocation(TL.getProtocolRAngleLoc());
321 }
322 for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i)
323 Record.AddSourceLocation(TL.getProtocolLoc(i));
324}
325
326void TypeLocWriter::VisitTypeOfExprTypeLoc(TypeOfExprTypeLoc TL) {
327 Record.AddSourceLocation(TL.getTypeofLoc());
328 Record.AddSourceLocation(TL.getLParenLoc());
329 Record.AddSourceLocation(TL.getRParenLoc());
330}
331
332void TypeLocWriter::VisitTypeOfTypeLoc(TypeOfTypeLoc TL) {
333 Record.AddSourceLocation(TL.getTypeofLoc());
334 Record.AddSourceLocation(TL.getLParenLoc());
335 Record.AddSourceLocation(TL.getRParenLoc());
336 Record.AddTypeSourceInfo(TL.getUnderlyingTInfo());
337}
338
339void TypeLocWriter::VisitDecltypeTypeLoc(DecltypeTypeLoc TL) {
340 Record.AddSourceLocation(TL.getNameLoc());
341}
342
343void TypeLocWriter::VisitUnaryTransformTypeLoc(UnaryTransformTypeLoc TL) {
344 Record.AddSourceLocation(TL.getKWLoc());
345 Record.AddSourceLocation(TL.getLParenLoc());
346 Record.AddSourceLocation(TL.getRParenLoc());
347 Record.AddTypeSourceInfo(TL.getUnderlyingTInfo());
348}
349
350void TypeLocWriter::VisitAutoTypeLoc(AutoTypeLoc TL) {
351 Record.AddSourceLocation(TL.getNameLoc());
352}
353
354void TypeLocWriter::VisitDeducedTemplateSpecializationTypeLoc(
355 DeducedTemplateSpecializationTypeLoc TL) {
356 Record.AddSourceLocation(TL.getTemplateNameLoc());
357}
358
359void TypeLocWriter::VisitRecordTypeLoc(RecordTypeLoc TL) {
360 Record.AddSourceLocation(TL.getNameLoc());
361}
362
363void TypeLocWriter::VisitEnumTypeLoc(EnumTypeLoc TL) {
364 Record.AddSourceLocation(TL.getNameLoc());
365}
366
367void TypeLocWriter::VisitAttributedTypeLoc(AttributedTypeLoc TL) {
368 Record.AddAttr(TL.getAttr());
369}
370
371void TypeLocWriter::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) {
372 Record.AddSourceLocation(TL.getNameLoc());
373}
374
375void TypeLocWriter::VisitSubstTemplateTypeParmTypeLoc(
376 SubstTemplateTypeParmTypeLoc TL) {
377 Record.AddSourceLocation(TL.getNameLoc());
378}
379
380void TypeLocWriter::VisitSubstTemplateTypeParmPackTypeLoc(
381 SubstTemplateTypeParmPackTypeLoc TL) {
382 Record.AddSourceLocation(TL.getNameLoc());
383}
384
385void TypeLocWriter::VisitTemplateSpecializationTypeLoc(
386 TemplateSpecializationTypeLoc TL) {
387 Record.AddSourceLocation(TL.getTemplateKeywordLoc());
388 Record.AddSourceLocation(TL.getTemplateNameLoc());
389 Record.AddSourceLocation(TL.getLAngleLoc());
390 Record.AddSourceLocation(TL.getRAngleLoc());
391 for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i)
392 Record.AddTemplateArgumentLocInfo(TL.getArgLoc(i).getArgument().getKind(),
393 TL.getArgLoc(i).getLocInfo());
394}
395
396void TypeLocWriter::VisitParenTypeLoc(ParenTypeLoc TL) {
397 Record.AddSourceLocation(TL.getLParenLoc());
398 Record.AddSourceLocation(TL.getRParenLoc());
399}
400
401void TypeLocWriter::VisitMacroQualifiedTypeLoc(MacroQualifiedTypeLoc TL) {
402 Record.AddSourceLocation(TL.getExpansionLoc());
403}
404
405void TypeLocWriter::VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) {
406 Record.AddSourceLocation(TL.getElaboratedKeywordLoc());
407 Record.AddNestedNameSpecifierLoc(TL.getQualifierLoc());
408}
409
410void TypeLocWriter::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) {
411 Record.AddSourceLocation(TL.getNameLoc());
412}
413
414void TypeLocWriter::VisitDependentNameTypeLoc(DependentNameTypeLoc TL) {
415 Record.AddSourceLocation(TL.getElaboratedKeywordLoc());
416 Record.AddNestedNameSpecifierLoc(TL.getQualifierLoc());
417 Record.AddSourceLocation(TL.getNameLoc());
418}
419
420void TypeLocWriter::VisitDependentTemplateSpecializationTypeLoc(
421 DependentTemplateSpecializationTypeLoc TL) {
422 Record.AddSourceLocation(TL.getElaboratedKeywordLoc());
423 Record.AddNestedNameSpecifierLoc(TL.getQualifierLoc());
424 Record.AddSourceLocation(TL.getTemplateKeywordLoc());
425 Record.AddSourceLocation(TL.getTemplateNameLoc());
426 Record.AddSourceLocation(TL.getLAngleLoc());
427 Record.AddSourceLocation(TL.getRAngleLoc());
428 for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I)
429 Record.AddTemplateArgumentLocInfo(TL.getArgLoc(I).getArgument().getKind(),
430 TL.getArgLoc(I).getLocInfo());
431}
432
433void TypeLocWriter::VisitPackExpansionTypeLoc(PackExpansionTypeLoc TL) {
434 Record.AddSourceLocation(TL.getEllipsisLoc());
435}
436
437void TypeLocWriter::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) {
438 Record.AddSourceLocation(TL.getNameLoc());
439}
440
441void TypeLocWriter::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) {
442 Record.push_back(TL.hasBaseTypeAsWritten());
443 Record.AddSourceLocation(TL.getTypeArgsLAngleLoc());
444 Record.AddSourceLocation(TL.getTypeArgsRAngleLoc());
445 for (unsigned i = 0, e = TL.getNumTypeArgs(); i != e; ++i)
446 Record.AddTypeSourceInfo(TL.getTypeArgTInfo(i));
447 Record.AddSourceLocation(TL.getProtocolLAngleLoc());
448 Record.AddSourceLocation(TL.getProtocolRAngleLoc());
449 for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i)
450 Record.AddSourceLocation(TL.getProtocolLoc(i));
451}
452
453void TypeLocWriter::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) {
454 Record.AddSourceLocation(TL.getStarLoc());
455}
456
457void TypeLocWriter::VisitAtomicTypeLoc(AtomicTypeLoc TL) {
458 Record.AddSourceLocation(TL.getKWLoc());
459 Record.AddSourceLocation(TL.getLParenLoc());
460 Record.AddSourceLocation(TL.getRParenLoc());
461}
462
463void TypeLocWriter::VisitPipeTypeLoc(PipeTypeLoc TL) {
464 Record.AddSourceLocation(TL.getKWLoc());
465}
466
467void ASTWriter::WriteTypeAbbrevs() {
468 using namespace llvm;
469
470 std::shared_ptr<BitCodeAbbrev> Abv;
471
472 // Abbreviation for TYPE_EXT_QUAL
473 Abv = std::make_shared<BitCodeAbbrev>();
474 Abv->Add(BitCodeAbbrevOp(serialization::TYPE_EXT_QUAL));
475 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
476 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 3)); // Quals
477 TypeExtQualAbbrev = Stream.EmitAbbrev(std::move(Abv));
478
479 // Abbreviation for TYPE_FUNCTION_PROTO
480 Abv = std::make_shared<BitCodeAbbrev>();
481 Abv->Add(BitCodeAbbrevOp(serialization::TYPE_FUNCTION_PROTO));
482 // FunctionType
483 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ReturnType
484 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // NoReturn
485 Abv->Add(BitCodeAbbrevOp(0)); // HasRegParm
486 Abv->Add(BitCodeAbbrevOp(0)); // RegParm
487 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // CC
488 Abv->Add(BitCodeAbbrevOp(0)); // ProducesResult
489 Abv->Add(BitCodeAbbrevOp(0)); // NoCallerSavedRegs
490 Abv->Add(BitCodeAbbrevOp(0)); // NoCfCheck
491 // FunctionProtoType
492 Abv->Add(BitCodeAbbrevOp(0)); // IsVariadic
493 Abv->Add(BitCodeAbbrevOp(0)); // HasTrailingReturn
494 Abv->Add(BitCodeAbbrevOp(0)); // TypeQuals
495 Abv->Add(BitCodeAbbrevOp(0)); // RefQualifier
496 Abv->Add(BitCodeAbbrevOp(EST_None)); // ExceptionSpec
497 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // NumParams
498 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
499 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Params
500 TypeFunctionProtoAbbrev = Stream.EmitAbbrev(std::move(Abv));
501}
502
503//===----------------------------------------------------------------------===//
504// ASTWriter Implementation
505//===----------------------------------------------------------------------===//
506
507static void EmitBlockID(unsigned ID, const char *Name,
508 llvm::BitstreamWriter &Stream,
509 ASTWriter::RecordDataImpl &Record) {
510 Record.clear();
511 Record.push_back(ID);
512 Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_SETBID, Record);
513
514 // Emit the block name if present.
515 if (!Name || Name[0] == 0)
516 return;
517 Record.clear();
518 while (*Name)
519 Record.push_back(*Name++);
520 Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_BLOCKNAME, Record);
521}
522
523static void EmitRecordID(unsigned ID, const char *Name,
524 llvm::BitstreamWriter &Stream,
525 ASTWriter::RecordDataImpl &Record) {
526 Record.clear();
527 Record.push_back(ID);
528 while (*Name)
529 Record.push_back(*Name++);
530 Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_SETRECORDNAME, Record);
531}
532
533static void AddStmtsExprs(llvm::BitstreamWriter &Stream,
534 ASTWriter::RecordDataImpl &Record) {
535#define RECORD(X) EmitRecordID(X, #X, Stream, Record)
536 RECORD(STMT_STOP);
537 RECORD(STMT_NULL_PTR);
538 RECORD(STMT_REF_PTR);
539 RECORD(STMT_NULL);
540 RECORD(STMT_COMPOUND);
541 RECORD(STMT_CASE);
542 RECORD(STMT_DEFAULT);
543 RECORD(STMT_LABEL);
544 RECORD(STMT_ATTRIBUTED);
545 RECORD(STMT_IF);
546 RECORD(STMT_SWITCH);
547 RECORD(STMT_WHILE);
548 RECORD(STMT_DO);
549 RECORD(STMT_FOR);
550 RECORD(STMT_GOTO);
551 RECORD(STMT_INDIRECT_GOTO);
552 RECORD(STMT_CONTINUE);
553 RECORD(STMT_BREAK);
554 RECORD(STMT_RETURN);
555 RECORD(STMT_DECL);
556 RECORD(STMT_GCCASM);
557 RECORD(STMT_MSASM);
558 RECORD(EXPR_PREDEFINED);
559 RECORD(EXPR_DECL_REF);
560 RECORD(EXPR_INTEGER_LITERAL);
561 RECORD(EXPR_FLOATING_LITERAL);
562 RECORD(EXPR_IMAGINARY_LITERAL);
563 RECORD(EXPR_STRING_LITERAL);
564 RECORD(EXPR_CHARACTER_LITERAL);
565 RECORD(EXPR_PAREN);
566 RECORD(EXPR_PAREN_LIST);
567 RECORD(EXPR_UNARY_OPERATOR);
568 RECORD(EXPR_SIZEOF_ALIGN_OF);
569 RECORD(EXPR_ARRAY_SUBSCRIPT);
570 RECORD(EXPR_CALL);
571 RECORD(EXPR_MEMBER);
572 RECORD(EXPR_BINARY_OPERATOR);
573 RECORD(EXPR_COMPOUND_ASSIGN_OPERATOR);
574 RECORD(EXPR_CONDITIONAL_OPERATOR);
575 RECORD(EXPR_IMPLICIT_CAST);
576 RECORD(EXPR_CSTYLE_CAST);
577 RECORD(EXPR_COMPOUND_LITERAL);
578 RECORD(EXPR_EXT_VECTOR_ELEMENT);
579 RECORD(EXPR_INIT_LIST);
580 RECORD(EXPR_DESIGNATED_INIT);
581 RECORD(EXPR_DESIGNATED_INIT_UPDATE);
582 RECORD(EXPR_IMPLICIT_VALUE_INIT);
583 RECORD(EXPR_NO_INIT);
584 RECORD(EXPR_VA_ARG);
585 RECORD(EXPR_ADDR_LABEL);
586 RECORD(EXPR_STMT);
587 RECORD(EXPR_CHOOSE);
588 RECORD(EXPR_GNU_NULL);
589 RECORD(EXPR_SHUFFLE_VECTOR);
590 RECORD(EXPR_BLOCK);
591 RECORD(EXPR_GENERIC_SELECTION);
592 RECORD(EXPR_OBJC_STRING_LITERAL);
593 RECORD(EXPR_OBJC_BOXED_EXPRESSION);
594 RECORD(EXPR_OBJC_ARRAY_LITERAL);
595 RECORD(EXPR_OBJC_DICTIONARY_LITERAL);
596 RECORD(EXPR_OBJC_ENCODE);
597 RECORD(EXPR_OBJC_SELECTOR_EXPR);
598 RECORD(EXPR_OBJC_PROTOCOL_EXPR);
599 RECORD(EXPR_OBJC_IVAR_REF_EXPR);
600 RECORD(EXPR_OBJC_PROPERTY_REF_EXPR);
601 RECORD(EXPR_OBJC_KVC_REF_EXPR);
602 RECORD(EXPR_OBJC_MESSAGE_EXPR);
603 RECORD(STMT_OBJC_FOR_COLLECTION);
604 RECORD(STMT_OBJC_CATCH);
605 RECORD(STMT_OBJC_FINALLY);
606 RECORD(STMT_OBJC_AT_TRY);
607 RECORD(STMT_OBJC_AT_SYNCHRONIZED);
608 RECORD(STMT_OBJC_AT_THROW);
609 RECORD(EXPR_OBJC_BOOL_LITERAL);
610 RECORD(STMT_CXX_CATCH);
611 RECORD(STMT_CXX_TRY);
612 RECORD(STMT_CXX_FOR_RANGE);
613 RECORD(EXPR_CXX_OPERATOR_CALL);
614 RECORD(EXPR_CXX_MEMBER_CALL);
615 RECORD(EXPR_CXX_REWRITTEN_BINARY_OPERATOR);
616 RECORD(EXPR_CXX_CONSTRUCT);
617 RECORD(EXPR_CXX_TEMPORARY_OBJECT);
618 RECORD(EXPR_CXX_STATIC_CAST);
619 RECORD(EXPR_CXX_DYNAMIC_CAST);
620 RECORD(EXPR_CXX_REINTERPRET_CAST);
621 RECORD(EXPR_CXX_CONST_CAST);
622 RECORD(EXPR_CXX_FUNCTIONAL_CAST);
623 RECORD(EXPR_USER_DEFINED_LITERAL);
624 RECORD(EXPR_CXX_STD_INITIALIZER_LIST);
625 RECORD(EXPR_CXX_BOOL_LITERAL);
626 RECORD(EXPR_CXX_NULL_PTR_LITERAL);
627 RECORD(EXPR_CXX_TYPEID_EXPR);
628 RECORD(EXPR_CXX_TYPEID_TYPE);
629 RECORD(EXPR_CXX_THIS);
630 RECORD(EXPR_CXX_THROW);
631 RECORD(EXPR_CXX_DEFAULT_ARG);
632 RECORD(EXPR_CXX_DEFAULT_INIT);
633 RECORD(EXPR_CXX_BIND_TEMPORARY);
634 RECORD(EXPR_CXX_SCALAR_VALUE_INIT);
635 RECORD(EXPR_CXX_NEW);
636 RECORD(EXPR_CXX_DELETE);
637 RECORD(EXPR_CXX_PSEUDO_DESTRUCTOR);
638 RECORD(EXPR_EXPR_WITH_CLEANUPS);
639 RECORD(EXPR_CXX_DEPENDENT_SCOPE_MEMBER);
640 RECORD(EXPR_CXX_DEPENDENT_SCOPE_DECL_REF);
641 RECORD(EXPR_CXX_UNRESOLVED_CONSTRUCT);
642 RECORD(EXPR_CXX_UNRESOLVED_MEMBER);
643 RECORD(EXPR_CXX_UNRESOLVED_LOOKUP);
644 RECORD(EXPR_CXX_EXPRESSION_TRAIT);
645 RECORD(EXPR_CXX_NOEXCEPT);
646 RECORD(EXPR_OPAQUE_VALUE);
647 RECORD(EXPR_BINARY_CONDITIONAL_OPERATOR);
648 RECORD(EXPR_TYPE_TRAIT);
649 RECORD(EXPR_ARRAY_TYPE_TRAIT);
650 RECORD(EXPR_PACK_EXPANSION);
651 RECORD(EXPR_SIZEOF_PACK);
652 RECORD(EXPR_SUBST_NON_TYPE_TEMPLATE_PARM);
653 RECORD(EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK);
654 RECORD(EXPR_FUNCTION_PARM_PACK);
655 RECORD(EXPR_MATERIALIZE_TEMPORARY);
656 RECORD(EXPR_CUDA_KERNEL_CALL);
657 RECORD(EXPR_CXX_UUIDOF_EXPR);
658 RECORD(EXPR_CXX_UUIDOF_TYPE);
659 RECORD(EXPR_LAMBDA);
660#undef RECORD
661}
662
663void ASTWriter::WriteBlockInfoBlock() {
664 RecordData Record;
665 Stream.EnterBlockInfoBlock();
666
667#define BLOCK(X) EmitBlockID(X ## _ID, #X, Stream, Record)
668#define RECORD(X) EmitRecordID(X, #X, Stream, Record)
669
670 // Control Block.
671 BLOCK(CONTROL_BLOCK);
672 RECORD(METADATA);
673 RECORD(MODULE_NAME);
674 RECORD(MODULE_DIRECTORY);
675 RECORD(MODULE_MAP_FILE);
676 RECORD(IMPORTS);
677 RECORD(ORIGINAL_FILE);
678 RECORD(ORIGINAL_PCH_DIR);
679 RECORD(ORIGINAL_FILE_ID);
680 RECORD(INPUT_FILE_OFFSETS);
681
682 BLOCK(OPTIONS_BLOCK);
683 RECORD(LANGUAGE_OPTIONS);
684 RECORD(TARGET_OPTIONS);
685 RECORD(FILE_SYSTEM_OPTIONS);
686 RECORD(HEADER_SEARCH_OPTIONS);
687 RECORD(PREPROCESSOR_OPTIONS);
688
689 BLOCK(INPUT_FILES_BLOCK);
690 RECORD(INPUT_FILE);
691 RECORD(INPUT_FILE_HASH);
692
693 // AST Top-Level Block.
694 BLOCK(AST_BLOCK);
695 RECORD(TYPE_OFFSET);
696 RECORD(DECL_OFFSET);
697 RECORD(IDENTIFIER_OFFSET);
698 RECORD(IDENTIFIER_TABLE);
699 RECORD(EAGERLY_DESERIALIZED_DECLS);
700 RECORD(MODULAR_CODEGEN_DECLS);
701 RECORD(SPECIAL_TYPES);
702 RECORD(STATISTICS);
703 RECORD(TENTATIVE_DEFINITIONS);
704 RECORD(SELECTOR_OFFSETS);
705 RECORD(METHOD_POOL);
706 RECORD(PP_COUNTER_VALUE);
707 RECORD(SOURCE_LOCATION_OFFSETS);
708 RECORD(SOURCE_LOCATION_PRELOADS);
709 RECORD(EXT_VECTOR_DECLS);
710 RECORD(UNUSED_FILESCOPED_DECLS);
711 RECORD(PPD_ENTITIES_OFFSETS);
712 RECORD(VTABLE_USES);
713 RECORD(PPD_SKIPPED_RANGES);
714 RECORD(REFERENCED_SELECTOR_POOL);
715 RECORD(TU_UPDATE_LEXICAL);
716 RECORD(SEMA_DECL_REFS);
717 RECORD(WEAK_UNDECLARED_IDENTIFIERS);
718 RECORD(PENDING_IMPLICIT_INSTANTIATIONS);
719 RECORD(UPDATE_VISIBLE);
720 RECORD(DECL_UPDATE_OFFSETS);
721 RECORD(DECL_UPDATES);
722 RECORD(CUDA_SPECIAL_DECL_REFS);
723 RECORD(HEADER_SEARCH_TABLE);
724 RECORD(FP_PRAGMA_OPTIONS);
725 RECORD(OPENCL_EXTENSIONS);
726 RECORD(OPENCL_EXTENSION_TYPES);
727 RECORD(OPENCL_EXTENSION_DECLS);
728 RECORD(DELEGATING_CTORS);
729 RECORD(KNOWN_NAMESPACES);
730 RECORD(MODULE_OFFSET_MAP);
731 RECORD(SOURCE_MANAGER_LINE_TABLE);
732 RECORD(OBJC_CATEGORIES_MAP);
733 RECORD(FILE_SORTED_DECLS);
734 RECORD(IMPORTED_MODULES);
735 RECORD(OBJC_CATEGORIES);
736 RECORD(MACRO_OFFSET);
737 RECORD(INTERESTING_IDENTIFIERS);
738 RECORD(UNDEFINED_BUT_USED);
739 RECORD(LATE_PARSED_TEMPLATE);
740 RECORD(OPTIMIZE_PRAGMA_OPTIONS);
741 RECORD(MSSTRUCT_PRAGMA_OPTIONS);
742 RECORD(POINTERS_TO_MEMBERS_PRAGMA_OPTIONS);
743 RECORD(UNUSED_LOCAL_TYPEDEF_NAME_CANDIDATES);
744 RECORD(DELETE_EXPRS_TO_ANALYZE);
745 RECORD(CUDA_PRAGMA_FORCE_HOST_DEVICE_DEPTH);
746 RECORD(PP_CONDITIONAL_STACK);
747
748 // SourceManager Block.
749 BLOCK(SOURCE_MANAGER_BLOCK);
750 RECORD(SM_SLOC_FILE_ENTRY);
751 RECORD(SM_SLOC_BUFFER_ENTRY);
752 RECORD(SM_SLOC_BUFFER_BLOB);
753 RECORD(SM_SLOC_BUFFER_BLOB_COMPRESSED);
754 RECORD(SM_SLOC_EXPANSION_ENTRY);
755
756 // Preprocessor Block.
757 BLOCK(PREPROCESSOR_BLOCK);
758 RECORD(PP_MACRO_DIRECTIVE_HISTORY);
759 RECORD(PP_MACRO_FUNCTION_LIKE);
760 RECORD(PP_MACRO_OBJECT_LIKE);
761 RECORD(PP_MODULE_MACRO);
762 RECORD(PP_TOKEN);
763
764 // Submodule Block.
765 BLOCK(SUBMODULE_BLOCK);
766 RECORD(SUBMODULE_METADATA);
767 RECORD(SUBMODULE_DEFINITION);
768 RECORD(SUBMODULE_UMBRELLA_HEADER);
769 RECORD(SUBMODULE_HEADER);
770 RECORD(SUBMODULE_TOPHEADER);
771 RECORD(SUBMODULE_UMBRELLA_DIR);
772 RECORD(SUBMODULE_IMPORTS);
773 RECORD(SUBMODULE_EXPORTS);
774 RECORD(SUBMODULE_REQUIRES);
775 RECORD(SUBMODULE_EXCLUDED_HEADER);
776 RECORD(SUBMODULE_LINK_LIBRARY);
777 RECORD(SUBMODULE_CONFIG_MACRO);
778 RECORD(SUBMODULE_CONFLICT);
779 RECORD(SUBMODULE_PRIVATE_HEADER);
780 RECORD(SUBMODULE_TEXTUAL_HEADER);
781 RECORD(SUBMODULE_PRIVATE_TEXTUAL_HEADER);
782 RECORD(SUBMODULE_INITIALIZERS);
783 RECORD(SUBMODULE_EXPORT_AS);
784
785 // Comments Block.
786 BLOCK(COMMENTS_BLOCK);
787 RECORD(COMMENTS_RAW_COMMENT);
788
789 // Decls and Types block.
790 BLOCK(DECLTYPES_BLOCK);
791 RECORD(TYPE_EXT_QUAL);
792 RECORD(TYPE_COMPLEX);
793 RECORD(TYPE_POINTER);
794 RECORD(TYPE_BLOCK_POINTER);
795 RECORD(TYPE_LVALUE_REFERENCE);
796 RECORD(TYPE_RVALUE_REFERENCE);
797 RECORD(TYPE_MEMBER_POINTER);
798 RECORD(TYPE_CONSTANT_ARRAY);
799 RECORD(TYPE_INCOMPLETE_ARRAY);
800 RECORD(TYPE_VARIABLE_ARRAY);
801 RECORD(TYPE_VECTOR);
802 RECORD(TYPE_EXT_VECTOR);
803 RECORD(TYPE_FUNCTION_NO_PROTO);
804 RECORD(TYPE_FUNCTION_PROTO);
805 RECORD(TYPE_TYPEDEF);
806 RECORD(TYPE_TYPEOF_EXPR);
807 RECORD(TYPE_TYPEOF);
808 RECORD(TYPE_RECORD);
809 RECORD(TYPE_ENUM);
810 RECORD(TYPE_OBJC_INTERFACE);
811 RECORD(TYPE_OBJC_OBJECT_POINTER);
812 RECORD(TYPE_DECLTYPE);
813 RECORD(TYPE_ELABORATED);
814 RECORD(TYPE_SUBST_TEMPLATE_TYPE_PARM);
815 RECORD(TYPE_UNRESOLVED_USING);
816 RECORD(TYPE_INJECTED_CLASS_NAME);
817 RECORD(TYPE_OBJC_OBJECT);
818 RECORD(TYPE_TEMPLATE_TYPE_PARM);
819 RECORD(TYPE_TEMPLATE_SPECIALIZATION);
820 RECORD(TYPE_DEPENDENT_NAME);
821 RECORD(TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION);
822 RECORD(TYPE_DEPENDENT_SIZED_ARRAY);
823 RECORD(TYPE_PAREN);
824 RECORD(TYPE_MACRO_QUALIFIED);
825 RECORD(TYPE_PACK_EXPANSION);
826 RECORD(TYPE_ATTRIBUTED);
827 RECORD(TYPE_SUBST_TEMPLATE_TYPE_PARM_PACK);
828 RECORD(TYPE_AUTO);
829 RECORD(TYPE_UNARY_TRANSFORM);
830 RECORD(TYPE_ATOMIC);
831 RECORD(TYPE_DECAYED);
832 RECORD(TYPE_ADJUSTED);
833 RECORD(TYPE_OBJC_TYPE_PARAM);
834 RECORD(LOCAL_REDECLARATIONS);
835 RECORD(DECL_TYPEDEF);
836 RECORD(DECL_TYPEALIAS);
837 RECORD(DECL_ENUM);
838 RECORD(DECL_RECORD);
839 RECORD(DECL_ENUM_CONSTANT);
840 RECORD(DECL_FUNCTION);
841 RECORD(DECL_OBJC_METHOD);
842 RECORD(DECL_OBJC_INTERFACE);
843 RECORD(DECL_OBJC_PROTOCOL);
844 RECORD(DECL_OBJC_IVAR);
845 RECORD(DECL_OBJC_AT_DEFS_FIELD);
846 RECORD(DECL_OBJC_CATEGORY);
847 RECORD(DECL_OBJC_CATEGORY_IMPL);
848 RECORD(DECL_OBJC_IMPLEMENTATION);
849 RECORD(DECL_OBJC_COMPATIBLE_ALIAS);
850 RECORD(DECL_OBJC_PROPERTY);
851 RECORD(DECL_OBJC_PROPERTY_IMPL);
852 RECORD(DECL_FIELD);
853 RECORD(DECL_MS_PROPERTY);
854 RECORD(DECL_VAR);
855 RECORD(DECL_IMPLICIT_PARAM);
856 RECORD(DECL_PARM_VAR);
857 RECORD(DECL_FILE_SCOPE_ASM);
858 RECORD(DECL_BLOCK);
859 RECORD(DECL_CONTEXT_LEXICAL);
860 RECORD(DECL_CONTEXT_VISIBLE);
861 RECORD(DECL_NAMESPACE);
862 RECORD(DECL_NAMESPACE_ALIAS);
863 RECORD(DECL_USING);
864 RECORD(DECL_USING_SHADOW);
865 RECORD(DECL_USING_DIRECTIVE);
866 RECORD(DECL_UNRESOLVED_USING_VALUE);
867 RECORD(DECL_UNRESOLVED_USING_TYPENAME);
868 RECORD(DECL_LINKAGE_SPEC);
869 RECORD(DECL_CXX_RECORD);
870 RECORD(DECL_CXX_METHOD);
871 RECORD(DECL_CXX_CONSTRUCTOR);
872 RECORD(DECL_CXX_DESTRUCTOR);
873 RECORD(DECL_CXX_CONVERSION);
874 RECORD(DECL_ACCESS_SPEC);
875 RECORD(DECL_FRIEND);
876 RECORD(DECL_FRIEND_TEMPLATE);
877 RECORD(DECL_CLASS_TEMPLATE);
878 RECORD(DECL_CLASS_TEMPLATE_SPECIALIZATION);
879 RECORD(DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION);
880 RECORD(DECL_VAR_TEMPLATE);
881 RECORD(DECL_VAR_TEMPLATE_SPECIALIZATION);
882 RECORD(DECL_VAR_TEMPLATE_PARTIAL_SPECIALIZATION);
883 RECORD(DECL_FUNCTION_TEMPLATE);
884 RECORD(DECL_TEMPLATE_TYPE_PARM);
885 RECORD(DECL_NON_TYPE_TEMPLATE_PARM);
886 RECORD(DECL_TEMPLATE_TEMPLATE_PARM);
887 RECORD(DECL_CONCEPT);
888 RECORD(DECL_TYPE_ALIAS_TEMPLATE);
889 RECORD(DECL_STATIC_ASSERT);
890 RECORD(DECL_CXX_BASE_SPECIFIERS);
891 RECORD(DECL_CXX_CTOR_INITIALIZERS);
892 RECORD(DECL_INDIRECTFIELD);
893 RECORD(DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK);
894 RECORD(DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK);
895 RECORD(DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION);
896 RECORD(DECL_IMPORT);
897 RECORD(DECL_OMP_THREADPRIVATE);
898 RECORD(DECL_EMPTY);
899 RECORD(DECL_OBJC_TYPE_PARAM);
900 RECORD(DECL_OMP_CAPTUREDEXPR);
901 RECORD(DECL_PRAGMA_COMMENT);
902 RECORD(DECL_PRAGMA_DETECT_MISMATCH);
903 RECORD(DECL_OMP_DECLARE_REDUCTION);
904 RECORD(DECL_OMP_ALLOCATE);
905
906 // Statements and Exprs can occur in the Decls and Types block.
907 AddStmtsExprs(Stream, Record);
908
909 BLOCK(PREPROCESSOR_DETAIL_BLOCK);
910 RECORD(PPD_MACRO_EXPANSION);
911 RECORD(PPD_MACRO_DEFINITION);
912 RECORD(PPD_INCLUSION_DIRECTIVE);
913
914 // Decls and Types block.
915 BLOCK(EXTENSION_BLOCK);
916 RECORD(EXTENSION_METADATA);
917
918 BLOCK(UNHASHED_CONTROL_BLOCK);
919 RECORD(SIGNATURE);
920 RECORD(DIAGNOSTIC_OPTIONS);
921 RECORD(DIAG_PRAGMA_MAPPINGS);
922
923#undef RECORD
924#undef BLOCK
925 Stream.ExitBlock();
926}
927
928/// Prepares a path for being written to an AST file by converting it
929/// to an absolute path and removing nested './'s.
930///
931/// \return \c true if the path was changed.
932static bool cleanPathForOutput(FileManager &FileMgr,
933 SmallVectorImpl<char> &Path) {
934 bool Changed = FileMgr.makeAbsolutePath(Path);
935 return Changed | llvm::sys::path::remove_dots(Path);
936}
937
938/// Adjusts the given filename to only write out the portion of the
939/// filename that is not part of the system root directory.
940///
941/// \param Filename the file name to adjust.
942///
943/// \param BaseDir When non-NULL, the PCH file is a relocatable AST file and
944/// the returned filename will be adjusted by this root directory.
945///
946/// \returns either the original filename (if it needs no adjustment) or the
947/// adjusted filename (which points into the @p Filename parameter).
948static const char *
949adjustFilenameForRelocatableAST(const char *Filename, StringRef BaseDir) {
950 assert(Filename && "No file name to adjust?")((Filename && "No file name to adjust?") ? static_cast
<void> (0) : __assert_fail ("Filename && \"No file name to adjust?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 950, __PRETTY_FUNCTION__))
;
951
952 if (BaseDir.empty())
953 return Filename;
954
955 // Verify that the filename and the system root have the same prefix.
956 unsigned Pos = 0;
957 for (; Filename[Pos] && Pos < BaseDir.size(); ++Pos)
958 if (Filename[Pos] != BaseDir[Pos])
959 return Filename; // Prefixes don't match.
960
961 // We hit the end of the filename before we hit the end of the system root.
962 if (!Filename[Pos])
963 return Filename;
964
965 // If there's not a path separator at the end of the base directory nor
966 // immediately after it, then this isn't within the base directory.
967 if (!llvm::sys::path::is_separator(Filename[Pos])) {
968 if (!llvm::sys::path::is_separator(BaseDir.back()))
969 return Filename;
970 } else {
971 // If the file name has a '/' at the current position, skip over the '/'.
972 // We distinguish relative paths from absolute paths by the
973 // absence of '/' at the beginning of relative paths.
974 //
975 // FIXME: This is wrong. We distinguish them by asking if the path is
976 // absolute, which isn't the same thing. And there might be multiple '/'s
977 // in a row. Use a better mechanism to indicate whether we have emitted an
978 // absolute or relative path.
979 ++Pos;
980 }
981
982 return Filename + Pos;
983}
984
985ASTFileSignature ASTWriter::createSignature(StringRef Bytes) {
986 // Calculate the hash till start of UNHASHED_CONTROL_BLOCK.
987 llvm::SHA1 Hasher;
988 Hasher.update(ArrayRef<uint8_t>(Bytes.bytes_begin(), Bytes.size()));
989 auto Hash = Hasher.result();
990
991 // Convert to an array [5*i32].
992 ASTFileSignature Signature;
993 auto LShift = [&](unsigned char Val, unsigned Shift) {
994 return (uint32_t)Val << Shift;
995 };
996 for (int I = 0; I != 5; ++I)
997 Signature[I] = LShift(Hash[I * 4 + 0], 24) | LShift(Hash[I * 4 + 1], 16) |
998 LShift(Hash[I * 4 + 2], 8) | LShift(Hash[I * 4 + 3], 0);
999
1000 return Signature;
1001}
1002
1003ASTFileSignature ASTWriter::writeUnhashedControlBlock(Preprocessor &PP,
1004 ASTContext &Context) {
1005 // Flush first to prepare the PCM hash (signature).
1006 Stream.FlushToWord();
1007 auto StartOfUnhashedControl = Stream.GetCurrentBitNo() >> 3;
1008
1009 // Enter the block and prepare to write records.
1010 RecordData Record;
1011 Stream.EnterSubblock(UNHASHED_CONTROL_BLOCK_ID, 5);
1012
1013 // For implicit modules, write the hash of the PCM as its signature.
1014 ASTFileSignature Signature;
1015 if (WritingModule &&
1016 PP.getHeaderSearchInfo().getHeaderSearchOpts().ModulesHashContent) {
1017 Signature = createSignature(StringRef(Buffer.begin(), StartOfUnhashedControl));
1018 Record.append(Signature.begin(), Signature.end());
1019 Stream.EmitRecord(SIGNATURE, Record);
1020 Record.clear();
1021 }
1022
1023 // Diagnostic options.
1024 const auto &Diags = Context.getDiagnostics();
1025 const DiagnosticOptions &DiagOpts = Diags.getDiagnosticOptions();
1026#define DIAGOPT(Name, Bits, Default) Record.push_back(DiagOpts.Name);
1027#define ENUM_DIAGOPT(Name, Type, Bits, Default) \
1028 Record.push_back(static_cast<unsigned>(DiagOpts.get##Name()));
1029#include "clang/Basic/DiagnosticOptions.def"
1030 Record.push_back(DiagOpts.Warnings.size());
1031 for (unsigned I = 0, N = DiagOpts.Warnings.size(); I != N; ++I)
1032 AddString(DiagOpts.Warnings[I], Record);
1033 Record.push_back(DiagOpts.Remarks.size());
1034 for (unsigned I = 0, N = DiagOpts.Remarks.size(); I != N; ++I)
1035 AddString(DiagOpts.Remarks[I], Record);
1036 // Note: we don't serialize the log or serialization file names, because they
1037 // are generally transient files and will almost always be overridden.
1038 Stream.EmitRecord(DIAGNOSTIC_OPTIONS, Record);
1039
1040 // Write out the diagnostic/pragma mappings.
1041 WritePragmaDiagnosticMappings(Diags, /* isModule = */ WritingModule);
1042
1043 // Leave the options block.
1044 Stream.ExitBlock();
1045 return Signature;
1046}
1047
1048/// Write the control block.
1049void ASTWriter::WriteControlBlock(Preprocessor &PP, ASTContext &Context,
1050 StringRef isysroot,
1051 const std::string &OutputFile) {
1052 using namespace llvm;
1053
1054 Stream.EnterSubblock(CONTROL_BLOCK_ID, 5);
1055 RecordData Record;
1056
1057 // Metadata
1058 auto MetadataAbbrev = std::make_shared<BitCodeAbbrev>();
1059 MetadataAbbrev->Add(BitCodeAbbrevOp(METADATA));
1060 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Major
1061 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Minor
1062 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Clang maj.
1063 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Clang min.
1064 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Relocatable
1065 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Timestamps
1066 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // PCHHasObjectFile
1067 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Errors
1068 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // SVN branch/tag
1069 unsigned MetadataAbbrevCode = Stream.EmitAbbrev(std::move(MetadataAbbrev));
1070 assert((!WritingModule || isysroot.empty()) &&(((!WritingModule || isysroot.empty()) && "writing module as a relocatable PCH?"
) ? static_cast<void> (0) : __assert_fail ("(!WritingModule || isysroot.empty()) && \"writing module as a relocatable PCH?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 1071, __PRETTY_FUNCTION__))
1071 "writing module as a relocatable PCH?")(((!WritingModule || isysroot.empty()) && "writing module as a relocatable PCH?"
) ? static_cast<void> (0) : __assert_fail ("(!WritingModule || isysroot.empty()) && \"writing module as a relocatable PCH?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 1071, __PRETTY_FUNCTION__))
;
1072 {
1073 RecordData::value_type Record[] = {
1074 METADATA,
1075 VERSION_MAJOR,
1076 VERSION_MINOR,
1077 CLANG_VERSION_MAJOR10,
1078 CLANG_VERSION_MINOR0,
1079 !isysroot.empty(),
1080 IncludeTimestamps,
1081 Context.getLangOpts().BuildingPCHWithObjectFile,
1082 ASTHasCompilerErrors};
1083 Stream.EmitRecordWithBlob(MetadataAbbrevCode, Record,
1084 getClangFullRepositoryVersion());
1085 }
1086
1087 if (WritingModule) {
1088 // Module name
1089 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1090 Abbrev->Add(BitCodeAbbrevOp(MODULE_NAME));
1091 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
1092 unsigned AbbrevCode = Stream.EmitAbbrev(std::move(Abbrev));
1093 RecordData::value_type Record[] = {MODULE_NAME};
1094 Stream.EmitRecordWithBlob(AbbrevCode, Record, WritingModule->Name);
1095 }
1096
1097 if (WritingModule && WritingModule->Directory) {
1098 SmallString<128> BaseDir(WritingModule->Directory->getName());
1099 cleanPathForOutput(Context.getSourceManager().getFileManager(), BaseDir);
1100
1101 // If the home of the module is the current working directory, then we
1102 // want to pick up the cwd of the build process loading the module, not
1103 // our cwd, when we load this module.
1104 if (!PP.getHeaderSearchInfo()
1105 .getHeaderSearchOpts()
1106 .ModuleMapFileHomeIsCwd ||
1107 WritingModule->Directory->getName() != StringRef(".")) {
1108 // Module directory.
1109 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1110 Abbrev->Add(BitCodeAbbrevOp(MODULE_DIRECTORY));
1111 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Directory
1112 unsigned AbbrevCode = Stream.EmitAbbrev(std::move(Abbrev));
1113
1114 RecordData::value_type Record[] = {MODULE_DIRECTORY};
1115 Stream.EmitRecordWithBlob(AbbrevCode, Record, BaseDir);
1116 }
1117
1118 // Write out all other paths relative to the base directory if possible.
1119 BaseDirectory.assign(BaseDir.begin(), BaseDir.end());
1120 } else if (!isysroot.empty()) {
1121 // Write out paths relative to the sysroot if possible.
1122 BaseDirectory = isysroot;
1123 }
1124
1125 // Module map file
1126 if (WritingModule && WritingModule->Kind == Module::ModuleMapModule) {
1127 Record.clear();
1128
1129 auto &Map = PP.getHeaderSearchInfo().getModuleMap();
1130 AddPath(WritingModule->PresumedModuleMapFile.empty()
1131 ? Map.getModuleMapFileForUniquing(WritingModule)->getName()
1132 : StringRef(WritingModule->PresumedModuleMapFile),
1133 Record);
1134
1135 // Additional module map files.
1136 if (auto *AdditionalModMaps =
1137 Map.getAdditionalModuleMapFiles(WritingModule)) {
1138 Record.push_back(AdditionalModMaps->size());
1139 for (const FileEntry *F : *AdditionalModMaps)
1140 AddPath(F->getName(), Record);
1141 } else {
1142 Record.push_back(0);
1143 }
1144
1145 Stream.EmitRecord(MODULE_MAP_FILE, Record);
1146 }
1147
1148 // Imports
1149 if (Chain) {
1150 serialization::ModuleManager &Mgr = Chain->getModuleManager();
1151 Record.clear();
1152
1153 for (ModuleFile &M : Mgr) {
1154 // Skip modules that weren't directly imported.
1155 if (!M.isDirectlyImported())
1156 continue;
1157
1158 Record.push_back((unsigned)M.Kind); // FIXME: Stable encoding
1159 AddSourceLocation(M.ImportLoc, Record);
1160
1161 // If we have calculated signature, there is no need to store
1162 // the size or timestamp.
1163 Record.push_back(M.Signature ? 0 : M.File->getSize());
1164 Record.push_back(M.Signature ? 0 : getTimestampForOutput(M.File));
1165
1166 for (auto I : M.Signature)
1167 Record.push_back(I);
1168
1169 AddString(M.ModuleName, Record);
1170 AddPath(M.FileName, Record);
1171 }
1172 Stream.EmitRecord(IMPORTS, Record);
1173 }
1174
1175 // Write the options block.
1176 Stream.EnterSubblock(OPTIONS_BLOCK_ID, 4);
1177
1178 // Language options.
1179 Record.clear();
1180 const LangOptions &LangOpts = Context.getLangOpts();
1181#define LANGOPT(Name, Bits, Default, Description) \
1182 Record.push_back(LangOpts.Name);
1183#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
1184 Record.push_back(static_cast<unsigned>(LangOpts.get##Name()));
1185#include "clang/Basic/LangOptions.def"
1186#define SANITIZER(NAME, ID) \
1187 Record.push_back(LangOpts.Sanitize.has(SanitizerKind::ID));
1188#include "clang/Basic/Sanitizers.def"
1189
1190 Record.push_back(LangOpts.ModuleFeatures.size());
1191 for (StringRef Feature : LangOpts.ModuleFeatures)
1192 AddString(Feature, Record);
1193
1194 Record.push_back((unsigned) LangOpts.ObjCRuntime.getKind());
1195 AddVersionTuple(LangOpts.ObjCRuntime.getVersion(), Record);
1196
1197 AddString(LangOpts.CurrentModule, Record);
1198
1199 // Comment options.
1200 Record.push_back(LangOpts.CommentOpts.BlockCommandNames.size());
1201 for (const auto &I : LangOpts.CommentOpts.BlockCommandNames) {
1202 AddString(I, Record);
1203 }
1204 Record.push_back(LangOpts.CommentOpts.ParseAllComments);
1205
1206 // OpenMP offloading options.
1207 Record.push_back(LangOpts.OMPTargetTriples.size());
1208 for (auto &T : LangOpts.OMPTargetTriples)
1209 AddString(T.getTriple(), Record);
1210
1211 AddString(LangOpts.OMPHostIRFile, Record);
1212
1213 Stream.EmitRecord(LANGUAGE_OPTIONS, Record);
1214
1215 // Target options.
1216 Record.clear();
1217 const TargetInfo &Target = Context.getTargetInfo();
1218 const TargetOptions &TargetOpts = Target.getTargetOpts();
1219 AddString(TargetOpts.Triple, Record);
1220 AddString(TargetOpts.CPU, Record);
1221 AddString(TargetOpts.ABI, Record);
1222 Record.push_back(TargetOpts.FeaturesAsWritten.size());
1223 for (unsigned I = 0, N = TargetOpts.FeaturesAsWritten.size(); I != N; ++I) {
1224 AddString(TargetOpts.FeaturesAsWritten[I], Record);
1225 }
1226 Record.push_back(TargetOpts.Features.size());
1227 for (unsigned I = 0, N = TargetOpts.Features.size(); I != N; ++I) {
1228 AddString(TargetOpts.Features[I], Record);
1229 }
1230 Stream.EmitRecord(TARGET_OPTIONS, Record);
1231
1232 // File system options.
1233 Record.clear();
1234 const FileSystemOptions &FSOpts =
1235 Context.getSourceManager().getFileManager().getFileSystemOpts();
1236 AddString(FSOpts.WorkingDir, Record);
1237 Stream.EmitRecord(FILE_SYSTEM_OPTIONS, Record);
1238
1239 // Header search options.
1240 Record.clear();
1241 const HeaderSearchOptions &HSOpts
1242 = PP.getHeaderSearchInfo().getHeaderSearchOpts();
1243 AddString(HSOpts.Sysroot, Record);
1244
1245 // Include entries.
1246 Record.push_back(HSOpts.UserEntries.size());
1247 for (unsigned I = 0, N = HSOpts.UserEntries.size(); I != N; ++I) {
1248 const HeaderSearchOptions::Entry &Entry = HSOpts.UserEntries[I];
1249 AddString(Entry.Path, Record);
1250 Record.push_back(static_cast<unsigned>(Entry.Group));
1251 Record.push_back(Entry.IsFramework);
1252 Record.push_back(Entry.IgnoreSysRoot);
1253 }
1254
1255 // System header prefixes.
1256 Record.push_back(HSOpts.SystemHeaderPrefixes.size());
1257 for (unsigned I = 0, N = HSOpts.SystemHeaderPrefixes.size(); I != N; ++I) {
1258 AddString(HSOpts.SystemHeaderPrefixes[I].Prefix, Record);
1259 Record.push_back(HSOpts.SystemHeaderPrefixes[I].IsSystemHeader);
1260 }
1261
1262 AddString(HSOpts.ResourceDir, Record);
1263 AddString(HSOpts.ModuleCachePath, Record);
1264 AddString(HSOpts.ModuleUserBuildPath, Record);
1265 Record.push_back(HSOpts.DisableModuleHash);
1266 Record.push_back(HSOpts.ImplicitModuleMaps);
1267 Record.push_back(HSOpts.ModuleMapFileHomeIsCwd);
1268 Record.push_back(HSOpts.UseBuiltinIncludes);
1269 Record.push_back(HSOpts.UseStandardSystemIncludes);
1270 Record.push_back(HSOpts.UseStandardCXXIncludes);
1271 Record.push_back(HSOpts.UseLibcxx);
1272 // Write out the specific module cache path that contains the module files.
1273 AddString(PP.getHeaderSearchInfo().getModuleCachePath(), Record);
1274 Stream.EmitRecord(HEADER_SEARCH_OPTIONS, Record);
1275
1276 // Preprocessor options.
1277 Record.clear();
1278 const PreprocessorOptions &PPOpts = PP.getPreprocessorOpts();
1279
1280 // Macro definitions.
1281 Record.push_back(PPOpts.Macros.size());
1282 for (unsigned I = 0, N = PPOpts.Macros.size(); I != N; ++I) {
1283 AddString(PPOpts.Macros[I].first, Record);
1284 Record.push_back(PPOpts.Macros[I].second);
1285 }
1286
1287 // Includes
1288 Record.push_back(PPOpts.Includes.size());
1289 for (unsigned I = 0, N = PPOpts.Includes.size(); I != N; ++I)
1290 AddString(PPOpts.Includes[I], Record);
1291
1292 // Macro includes
1293 Record.push_back(PPOpts.MacroIncludes.size());
1294 for (unsigned I = 0, N = PPOpts.MacroIncludes.size(); I != N; ++I)
1295 AddString(PPOpts.MacroIncludes[I], Record);
1296
1297 Record.push_back(PPOpts.UsePredefines);
1298 // Detailed record is important since it is used for the module cache hash.
1299 Record.push_back(PPOpts.DetailedRecord);
1300 AddString(PPOpts.ImplicitPCHInclude, Record);
1301 Record.push_back(static_cast<unsigned>(PPOpts.ObjCXXARCStandardLibrary));
1302 Stream.EmitRecord(PREPROCESSOR_OPTIONS, Record);
1303
1304 // Leave the options block.
1305 Stream.ExitBlock();
1306
1307 // Original file name and file ID
1308 SourceManager &SM = Context.getSourceManager();
1309 if (const FileEntry *MainFile = SM.getFileEntryForID(SM.getMainFileID())) {
1310 auto FileAbbrev = std::make_shared<BitCodeAbbrev>();
1311 FileAbbrev->Add(BitCodeAbbrevOp(ORIGINAL_FILE));
1312 FileAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // File ID
1313 FileAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // File name
1314 unsigned FileAbbrevCode = Stream.EmitAbbrev(std::move(FileAbbrev));
1315
1316 Record.clear();
1317 Record.push_back(ORIGINAL_FILE);
1318 Record.push_back(SM.getMainFileID().getOpaqueValue());
1319 EmitRecordWithPath(FileAbbrevCode, Record, MainFile->getName());
1320 }
1321
1322 Record.clear();
1323 Record.push_back(SM.getMainFileID().getOpaqueValue());
1324 Stream.EmitRecord(ORIGINAL_FILE_ID, Record);
1325
1326 // Original PCH directory
1327 if (!OutputFile.empty() && OutputFile != "-") {
1328 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1329 Abbrev->Add(BitCodeAbbrevOp(ORIGINAL_PCH_DIR));
1330 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // File name
1331 unsigned AbbrevCode = Stream.EmitAbbrev(std::move(Abbrev));
1332
1333 SmallString<128> OutputPath(OutputFile);
1334
1335 SM.getFileManager().makeAbsolutePath(OutputPath);
1336 StringRef origDir = llvm::sys::path::parent_path(OutputPath);
1337
1338 RecordData::value_type Record[] = {ORIGINAL_PCH_DIR};
1339 Stream.EmitRecordWithBlob(AbbrevCode, Record, origDir);
1340 }
1341
1342 WriteInputFiles(Context.SourceMgr,
1343 PP.getHeaderSearchInfo().getHeaderSearchOpts(),
1344 PP.getLangOpts().Modules);
1345 Stream.ExitBlock();
1346}
1347
1348namespace {
1349
1350/// An input file.
1351struct InputFileEntry {
1352 const FileEntry *File;
1353 bool IsSystemFile;
1354 bool IsTransient;
1355 bool BufferOverridden;
1356 bool IsTopLevelModuleMap;
1357 uint32_t ContentHash[2];
1358};
1359
1360} // namespace
1361
1362void ASTWriter::WriteInputFiles(SourceManager &SourceMgr,
1363 HeaderSearchOptions &HSOpts,
1364 bool Modules) {
1365 using namespace llvm;
1366
1367 Stream.EnterSubblock(INPUT_FILES_BLOCK_ID, 4);
1368
1369 // Create input-file abbreviation.
1370 auto IFAbbrev = std::make_shared<BitCodeAbbrev>();
1371 IFAbbrev->Add(BitCodeAbbrevOp(INPUT_FILE));
1372 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ID
1373 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 12)); // Size
1374 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 32)); // Modification time
1375 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Overridden
1376 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Transient
1377 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Module map
1378 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // File name
1379 unsigned IFAbbrevCode = Stream.EmitAbbrev(std::move(IFAbbrev));
1380
1381 // Create input file hash abbreviation.
1382 auto IFHAbbrev = std::make_shared<BitCodeAbbrev>();
1383 IFHAbbrev->Add(BitCodeAbbrevOp(INPUT_FILE_HASH));
1384 IFHAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1385 IFHAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1386 unsigned IFHAbbrevCode = Stream.EmitAbbrev(std::move(IFHAbbrev));
1387
1388 // Get all ContentCache objects for files, sorted by whether the file is a
1389 // system one or not. System files go at the back, users files at the front.
1390 std::deque<InputFileEntry> SortedFiles;
1391 for (unsigned I = 1, N = SourceMgr.local_sloc_entry_size(); I != N; ++I) {
1392 // Get this source location entry.
1393 const SrcMgr::SLocEntry *SLoc = &SourceMgr.getLocalSLocEntry(I);
1394 assert(&SourceMgr.getSLocEntry(FileID::get(I)) == SLoc)((&SourceMgr.getSLocEntry(FileID::get(I)) == SLoc) ? static_cast
<void> (0) : __assert_fail ("&SourceMgr.getSLocEntry(FileID::get(I)) == SLoc"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 1394, __PRETTY_FUNCTION__))
;
1395
1396 // We only care about file entries that were not overridden.
1397 if (!SLoc->isFile())
1398 continue;
1399 const SrcMgr::FileInfo &File = SLoc->getFile();
1400 const SrcMgr::ContentCache *Cache = File.getContentCache();
1401 if (!Cache->OrigEntry)
1402 continue;
1403
1404 InputFileEntry Entry;
1405 Entry.File = Cache->OrigEntry;
1406 Entry.IsSystemFile = isSystem(File.getFileCharacteristic());
1407 Entry.IsTransient = Cache->IsTransient;
1408 Entry.BufferOverridden = Cache->BufferOverridden;
1409 Entry.IsTopLevelModuleMap = isModuleMap(File.getFileCharacteristic()) &&
1410 File.getIncludeLoc().isInvalid();
1411
1412 auto ContentHash = hash_code(-1);
1413 if (PP->getHeaderSearchInfo()
1414 .getHeaderSearchOpts()
1415 .ValidateASTInputFilesContent) {
1416 auto *MemBuff = Cache->getRawBuffer();
1417 if (MemBuff)
1418 ContentHash = hash_value(MemBuff->getBuffer());
1419 else
1420 // FIXME: The path should be taken from the FileEntryRef.
1421 PP->Diag(SourceLocation(), diag::err_module_unable_to_hash_content)
1422 << Entry.File->getName();
1423 }
1424 auto CH = llvm::APInt(64, ContentHash);
1425 Entry.ContentHash[0] =
1426 static_cast<uint32_t>(CH.getLoBits(32).getZExtValue());
1427 Entry.ContentHash[1] =
1428 static_cast<uint32_t>(CH.getHiBits(32).getZExtValue());
1429
1430 if (Entry.IsSystemFile)
1431 SortedFiles.push_back(Entry);
1432 else
1433 SortedFiles.push_front(Entry);
1434 }
1435
1436 unsigned UserFilesNum = 0;
1437 // Write out all of the input files.
1438 std::vector<uint64_t> InputFileOffsets;
1439 for (const auto &Entry : SortedFiles) {
1440 uint32_t &InputFileID = InputFileIDs[Entry.File];
1441 if (InputFileID != 0)
1442 continue; // already recorded this file.
1443
1444 // Record this entry's offset.
1445 InputFileOffsets.push_back(Stream.GetCurrentBitNo());
1446
1447 InputFileID = InputFileOffsets.size();
1448
1449 if (!Entry.IsSystemFile)
1450 ++UserFilesNum;
1451
1452 // Emit size/modification time for this file.
1453 // And whether this file was overridden.
1454 {
1455 RecordData::value_type Record[] = {
1456 INPUT_FILE,
1457 InputFileOffsets.size(),
1458 (uint64_t)Entry.File->getSize(),
1459 (uint64_t)getTimestampForOutput(Entry.File),
1460 Entry.BufferOverridden,
1461 Entry.IsTransient,
1462 Entry.IsTopLevelModuleMap};
1463
1464 // FIXME: The path should be taken from the FileEntryRef.
1465 EmitRecordWithPath(IFAbbrevCode, Record, Entry.File->getName());
1466 }
1467
1468 // Emit content hash for this file.
1469 {
1470 RecordData::value_type Record[] = {INPUT_FILE_HASH, Entry.ContentHash[0],
1471 Entry.ContentHash[1]};
1472 Stream.EmitRecordWithAbbrev(IFHAbbrevCode, Record);
1473 }
1474 }
1475
1476 Stream.ExitBlock();
1477
1478 // Create input file offsets abbreviation.
1479 auto OffsetsAbbrev = std::make_shared<BitCodeAbbrev>();
1480 OffsetsAbbrev->Add(BitCodeAbbrevOp(INPUT_FILE_OFFSETS));
1481 OffsetsAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // # input files
1482 OffsetsAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // # non-system
1483 // input files
1484 OffsetsAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Array
1485 unsigned OffsetsAbbrevCode = Stream.EmitAbbrev(std::move(OffsetsAbbrev));
1486
1487 // Write input file offsets.
1488 RecordData::value_type Record[] = {INPUT_FILE_OFFSETS,
1489 InputFileOffsets.size(), UserFilesNum};
1490 Stream.EmitRecordWithBlob(OffsetsAbbrevCode, Record, bytes(InputFileOffsets));
1491}
1492
1493//===----------------------------------------------------------------------===//
1494// Source Manager Serialization
1495//===----------------------------------------------------------------------===//
1496
1497/// Create an abbreviation for the SLocEntry that refers to a
1498/// file.
1499static unsigned CreateSLocFileAbbrev(llvm::BitstreamWriter &Stream) {
1500 using namespace llvm;
1501
1502 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1503 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_FILE_ENTRY));
1504 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset
1505 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Include location
1506 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Characteristic
1507 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Line directives
1508 // FileEntry fields.
1509 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Input File ID
1510 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // NumCreatedFIDs
1511 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 24)); // FirstDeclIndex
1512 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // NumDecls
1513 return Stream.EmitAbbrev(std::move(Abbrev));
1514}
1515
1516/// Create an abbreviation for the SLocEntry that refers to a
1517/// buffer.
1518static unsigned CreateSLocBufferAbbrev(llvm::BitstreamWriter &Stream) {
1519 using namespace llvm;
1520
1521 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1522 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_BUFFER_ENTRY));
1523 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset
1524 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Include location
1525 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Characteristic
1526 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Line directives
1527 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Buffer name blob
1528 return Stream.EmitAbbrev(std::move(Abbrev));
1529}
1530
1531/// Create an abbreviation for the SLocEntry that refers to a
1532/// buffer's blob.
1533static unsigned CreateSLocBufferBlobAbbrev(llvm::BitstreamWriter &Stream,
1534 bool Compressed) {
1535 using namespace llvm;
1536
1537 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1538 Abbrev->Add(BitCodeAbbrevOp(Compressed ? SM_SLOC_BUFFER_BLOB_COMPRESSED
1539 : SM_SLOC_BUFFER_BLOB));
1540 if (Compressed)
1541 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Uncompressed size
1542 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Blob
1543 return Stream.EmitAbbrev(std::move(Abbrev));
1544}
1545
1546/// Create an abbreviation for the SLocEntry that refers to a macro
1547/// expansion.
1548static unsigned CreateSLocExpansionAbbrev(llvm::BitstreamWriter &Stream) {
1549 using namespace llvm;
1550
1551 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1552 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_EXPANSION_ENTRY));
1553 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset
1554 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Spelling location
1555 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Start location
1556 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // End location
1557 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Is token range
1558 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Token length
1559 return Stream.EmitAbbrev(std::move(Abbrev));
1560}
1561
1562namespace {
1563
1564 // Trait used for the on-disk hash table of header search information.
1565 class HeaderFileInfoTrait {
1566 ASTWriter &Writer;
1567
1568 // Keep track of the framework names we've used during serialization.
1569 SmallVector<char, 128> FrameworkStringData;
1570 llvm::StringMap<unsigned> FrameworkNameOffset;
1571
1572 public:
1573 HeaderFileInfoTrait(ASTWriter &Writer) : Writer(Writer) {}
1574
1575 struct key_type {
1576 StringRef Filename;
1577 off_t Size;
1578 time_t ModTime;
1579 };
1580 using key_type_ref = const key_type &;
1581
1582 using UnresolvedModule =
1583 llvm::PointerIntPair<Module *, 2, ModuleMap::ModuleHeaderRole>;
1584
1585 struct data_type {
1586 const HeaderFileInfo &HFI;
1587 ArrayRef<ModuleMap::KnownHeader> KnownHeaders;
1588 UnresolvedModule Unresolved;
1589 };
1590 using data_type_ref = const data_type &;
1591
1592 using hash_value_type = unsigned;
1593 using offset_type = unsigned;
1594
1595 hash_value_type ComputeHash(key_type_ref key) {
1596 // The hash is based only on size/time of the file, so that the reader can
1597 // match even when symlinking or excess path elements ("foo/../", "../")
1598 // change the form of the name. However, complete path is still the key.
1599 return llvm::hash_combine(key.Size, key.ModTime);
1600 }
1601
1602 std::pair<unsigned, unsigned>
1603 EmitKeyDataLength(raw_ostream& Out, key_type_ref key, data_type_ref Data) {
1604 using namespace llvm::support;
1605
1606 endian::Writer LE(Out, little);
1607 unsigned KeyLen = key.Filename.size() + 1 + 8 + 8;
1608 LE.write<uint16_t>(KeyLen);
1609 unsigned DataLen = 1 + 2 + 4 + 4;
1610 for (auto ModInfo : Data.KnownHeaders)
1611 if (Writer.getLocalOrImportedSubmoduleID(ModInfo.getModule()))
1612 DataLen += 4;
1613 if (Data.Unresolved.getPointer())
1614 DataLen += 4;
1615 LE.write<uint8_t>(DataLen);
1616 return std::make_pair(KeyLen, DataLen);
1617 }
1618
1619 void EmitKey(raw_ostream& Out, key_type_ref key, unsigned KeyLen) {
1620 using namespace llvm::support;
1621
1622 endian::Writer LE(Out, little);
1623 LE.write<uint64_t>(key.Size);
1624 KeyLen -= 8;
1625 LE.write<uint64_t>(key.ModTime);
1626 KeyLen -= 8;
1627 Out.write(key.Filename.data(), KeyLen);
1628 }
1629
1630 void EmitData(raw_ostream &Out, key_type_ref key,
1631 data_type_ref Data, unsigned DataLen) {
1632 using namespace llvm::support;
1633
1634 endian::Writer LE(Out, little);
1635 uint64_t Start = Out.tell(); (void)Start;
1636
1637 unsigned char Flags = (Data.HFI.isImport << 5)
1638 | (Data.HFI.isPragmaOnce << 4)
1639 | (Data.HFI.DirInfo << 1)
1640 | Data.HFI.IndexHeaderMapHeader;
1641 LE.write<uint8_t>(Flags);
1642 LE.write<uint16_t>(Data.HFI.NumIncludes);
1643
1644 if (!Data.HFI.ControllingMacro)
1645 LE.write<uint32_t>(Data.HFI.ControllingMacroID);
1646 else
1647 LE.write<uint32_t>(Writer.getIdentifierRef(Data.HFI.ControllingMacro));
1648
1649 unsigned Offset = 0;
1650 if (!Data.HFI.Framework.empty()) {
1651 // If this header refers into a framework, save the framework name.
1652 llvm::StringMap<unsigned>::iterator Pos
1653 = FrameworkNameOffset.find(Data.HFI.Framework);
1654 if (Pos == FrameworkNameOffset.end()) {
1655 Offset = FrameworkStringData.size() + 1;
1656 FrameworkStringData.append(Data.HFI.Framework.begin(),
1657 Data.HFI.Framework.end());
1658 FrameworkStringData.push_back(0);
1659
1660 FrameworkNameOffset[Data.HFI.Framework] = Offset;
1661 } else
1662 Offset = Pos->second;
1663 }
1664 LE.write<uint32_t>(Offset);
1665
1666 auto EmitModule = [&](Module *M, ModuleMap::ModuleHeaderRole Role) {
1667 if (uint32_t ModID = Writer.getLocalOrImportedSubmoduleID(M)) {
1668 uint32_t Value = (ModID << 2) | (unsigned)Role;
1669 assert((Value >> 2) == ModID && "overflow in header module info")(((Value >> 2) == ModID && "overflow in header module info"
) ? static_cast<void> (0) : __assert_fail ("(Value >> 2) == ModID && \"overflow in header module info\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 1669, __PRETTY_FUNCTION__))
;
1670 LE.write<uint32_t>(Value);
1671 }
1672 };
1673
1674 // FIXME: If the header is excluded, we should write out some
1675 // record of that fact.
1676 for (auto ModInfo : Data.KnownHeaders)
1677 EmitModule(ModInfo.getModule(), ModInfo.getRole());
1678 if (Data.Unresolved.getPointer())
1679 EmitModule(Data.Unresolved.getPointer(), Data.Unresolved.getInt());
1680
1681 assert(Out.tell() - Start == DataLen && "Wrong data length")((Out.tell() - Start == DataLen && "Wrong data length"
) ? static_cast<void> (0) : __assert_fail ("Out.tell() - Start == DataLen && \"Wrong data length\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 1681, __PRETTY_FUNCTION__))
;
1682 }
1683
1684 const char *strings_begin() const { return FrameworkStringData.begin(); }
1685 const char *strings_end() const { return FrameworkStringData.end(); }
1686 };
1687
1688} // namespace
1689
1690/// Write the header search block for the list of files that
1691///
1692/// \param HS The header search structure to save.
1693void ASTWriter::WriteHeaderSearch(const HeaderSearch &HS) {
1694 HeaderFileInfoTrait GeneratorTrait(*this);
1695 llvm::OnDiskChainedHashTableGenerator<HeaderFileInfoTrait> Generator;
1696 SmallVector<const char *, 4> SavedStrings;
1697 unsigned NumHeaderSearchEntries = 0;
1698
1699 // Find all unresolved headers for the current module. We generally will
1700 // have resolved them before we get here, but not necessarily: we might be
1701 // compiling a preprocessed module, where there is no requirement for the
1702 // original files to exist any more.
1703 const HeaderFileInfo Empty; // So we can take a reference.
1704 if (WritingModule) {
1
Assuming field 'WritingModule' is non-null
2
Taking true branch
1705 llvm::SmallVector<Module *, 16> Worklist(1, WritingModule);
1706 while (!Worklist.empty()) {
3
Loop condition is true. Entering loop body
1707 Module *M = Worklist.pop_back_val();
1708 if (!M->isAvailable())
4
Assuming the condition is false
5
Taking false branch
1709 continue;
1710
1711 // Map to disk files where possible, to pick up any missing stat
1712 // information. This also means we don't need to check the unresolved
1713 // headers list when emitting resolved headers in the first loop below.
1714 // FIXME: It'd be preferable to avoid doing this if we were given
1715 // sufficient stat information in the module map.
1716 HS.getModuleMap().resolveHeaderDirectives(M);
1717
1718 // If the file didn't exist, we can still create a module if we were given
1719 // enough information in the module map.
1720 for (auto U : M->MissingHeaders) {
6
Assuming '__begin3' is not equal to '__end3'
1721 // Check that we were given enough information to build a module
1722 // without this file existing on disk.
1723 if (!U.Size || (!U.ModTime && IncludeTimestamps)) {
7
Assuming the condition is false
8
Assuming the condition is false
1724 PP->Diag(U.FileNameLoc, diag::err_module_no_size_mtime_for_header)
1725 << WritingModule->getFullModuleName() << U.Size.hasValue()
1726 << U.FileName;
1727 continue;
1728 }
1729
1730 // Form the effective relative pathname for the file.
1731 SmallString<128> Filename(M->Directory->getName());
1732 llvm::sys::path::append(Filename, U.FileName);
1733 PreparePathForOutput(Filename);
1734
1735 StringRef FilenameDup = strdup(Filename.c_str());
9
Memory is allocated
10
Potential memory leak
1736 SavedStrings.push_back(FilenameDup.data());
1737
1738 HeaderFileInfoTrait::key_type Key = {
1739 FilenameDup, *U.Size, IncludeTimestamps ? *U.ModTime : 0
1740 };
1741 HeaderFileInfoTrait::data_type Data = {
1742 Empty, {}, {M, ModuleMap::headerKindToRole(U.Kind)}
1743 };
1744 // FIXME: Deal with cases where there are multiple unresolved header
1745 // directives in different submodules for the same header.
1746 Generator.insert(Key, Data, GeneratorTrait);
1747 ++NumHeaderSearchEntries;
1748 }
1749
1750 Worklist.append(M->submodule_begin(), M->submodule_end());
1751 }
1752 }
1753
1754 SmallVector<const FileEntry *, 16> FilesByUID;
1755 HS.getFileMgr().GetUniqueIDMapping(FilesByUID);
1756
1757 if (FilesByUID.size() > HS.header_file_size())
1758 FilesByUID.resize(HS.header_file_size());
1759
1760 for (unsigned UID = 0, LastUID = FilesByUID.size(); UID != LastUID; ++UID) {
1761 const FileEntry *File = FilesByUID[UID];
1762 if (!File)
1763 continue;
1764
1765 // Get the file info. This will load info from the external source if
1766 // necessary. Skip emitting this file if we have no information on it
1767 // as a header file (in which case HFI will be null) or if it hasn't
1768 // changed since it was loaded. Also skip it if it's for a modular header
1769 // from a different module; in that case, we rely on the module(s)
1770 // containing the header to provide this information.
1771 const HeaderFileInfo *HFI =
1772 HS.getExistingFileInfo(File, /*WantExternal*/!Chain);
1773 if (!HFI || (HFI->isModuleHeader && !HFI->isCompilingModuleHeader))
1774 continue;
1775
1776 // Massage the file path into an appropriate form.
1777 StringRef Filename = File->getName();
1778 SmallString<128> FilenameTmp(Filename);
1779 if (PreparePathForOutput(FilenameTmp)) {
1780 // If we performed any translation on the file name at all, we need to
1781 // save this string, since the generator will refer to it later.
1782 Filename = StringRef(strdup(FilenameTmp.c_str()));
1783 SavedStrings.push_back(Filename.data());
1784 }
1785
1786 HeaderFileInfoTrait::key_type Key = {
1787 Filename, File->getSize(), getTimestampForOutput(File)
1788 };
1789 HeaderFileInfoTrait::data_type Data = {
1790 *HFI, HS.getModuleMap().findAllModulesForHeader(File), {}
1791 };
1792 Generator.insert(Key, Data, GeneratorTrait);
1793 ++NumHeaderSearchEntries;
1794 }
1795
1796 // Create the on-disk hash table in a buffer.
1797 SmallString<4096> TableData;
1798 uint32_t BucketOffset;
1799 {
1800 using namespace llvm::support;
1801
1802 llvm::raw_svector_ostream Out(TableData);
1803 // Make sure that no bucket is at offset 0
1804 endian::write<uint32_t>(Out, 0, little);
1805 BucketOffset = Generator.Emit(Out, GeneratorTrait);
1806 }
1807
1808 // Create a blob abbreviation
1809 using namespace llvm;
1810
1811 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1812 Abbrev->Add(BitCodeAbbrevOp(HEADER_SEARCH_TABLE));
1813 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1814 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1815 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1816 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
1817 unsigned TableAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
1818
1819 // Write the header search table
1820 RecordData::value_type Record[] = {HEADER_SEARCH_TABLE, BucketOffset,
1821 NumHeaderSearchEntries, TableData.size()};
1822 TableData.append(GeneratorTrait.strings_begin(),GeneratorTrait.strings_end());
1823 Stream.EmitRecordWithBlob(TableAbbrev, Record, TableData);
1824
1825 // Free all of the strings we had to duplicate.
1826 for (unsigned I = 0, N = SavedStrings.size(); I != N; ++I)
1827 free(const_cast<char *>(SavedStrings[I]));
1828}
1829
1830static void emitBlob(llvm::BitstreamWriter &Stream, StringRef Blob,
1831 unsigned SLocBufferBlobCompressedAbbrv,
1832 unsigned SLocBufferBlobAbbrv) {
1833 using RecordDataType = ASTWriter::RecordData::value_type;
1834
1835 // Compress the buffer if possible. We expect that almost all PCM
1836 // consumers will not want its contents.
1837 SmallString<0> CompressedBuffer;
1838 if (llvm::zlib::isAvailable()) {
1839 llvm::Error E = llvm::zlib::compress(Blob.drop_back(1), CompressedBuffer);
1840 if (!E) {
1841 RecordDataType Record[] = {SM_SLOC_BUFFER_BLOB_COMPRESSED,
1842 Blob.size() - 1};
1843 Stream.EmitRecordWithBlob(SLocBufferBlobCompressedAbbrv, Record,
1844 CompressedBuffer);
1845 return;
1846 }
1847 llvm::consumeError(std::move(E));
1848 }
1849
1850 RecordDataType Record[] = {SM_SLOC_BUFFER_BLOB};
1851 Stream.EmitRecordWithBlob(SLocBufferBlobAbbrv, Record, Blob);
1852}
1853
1854/// Writes the block containing the serialized form of the
1855/// source manager.
1856///
1857/// TODO: We should probably use an on-disk hash table (stored in a
1858/// blob), indexed based on the file name, so that we only create
1859/// entries for files that we actually need. In the common case (no
1860/// errors), we probably won't have to create file entries for any of
1861/// the files in the AST.
1862void ASTWriter::WriteSourceManagerBlock(SourceManager &SourceMgr,
1863 const Preprocessor &PP) {
1864 RecordData Record;
1865
1866 // Enter the source manager block.
1867 Stream.EnterSubblock(SOURCE_MANAGER_BLOCK_ID, 4);
1868
1869 // Abbreviations for the various kinds of source-location entries.
1870 unsigned SLocFileAbbrv = CreateSLocFileAbbrev(Stream);
1871 unsigned SLocBufferAbbrv = CreateSLocBufferAbbrev(Stream);
1872 unsigned SLocBufferBlobAbbrv = CreateSLocBufferBlobAbbrev(Stream, false);
1873 unsigned SLocBufferBlobCompressedAbbrv =
1874 CreateSLocBufferBlobAbbrev(Stream, true);
1875 unsigned SLocExpansionAbbrv = CreateSLocExpansionAbbrev(Stream);
1876
1877 // Write out the source location entry table. We skip the first
1878 // entry, which is always the same dummy entry.
1879 std::vector<uint32_t> SLocEntryOffsets;
1880 RecordData PreloadSLocs;
1881 SLocEntryOffsets.reserve(SourceMgr.local_sloc_entry_size() - 1);
1882 for (unsigned I = 1, N = SourceMgr.local_sloc_entry_size();
1883 I != N; ++I) {
1884 // Get this source location entry.
1885 const SrcMgr::SLocEntry *SLoc = &SourceMgr.getLocalSLocEntry(I);
1886 FileID FID = FileID::get(I);
1887 assert(&SourceMgr.getSLocEntry(FID) == SLoc)((&SourceMgr.getSLocEntry(FID) == SLoc) ? static_cast<
void> (0) : __assert_fail ("&SourceMgr.getSLocEntry(FID) == SLoc"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 1887, __PRETTY_FUNCTION__))
;
1888
1889 // Record the offset of this source-location entry.
1890 SLocEntryOffsets.push_back(Stream.GetCurrentBitNo());
1891
1892 // Figure out which record code to use.
1893 unsigned Code;
1894 if (SLoc->isFile()) {
1895 const SrcMgr::ContentCache *Cache = SLoc->getFile().getContentCache();
1896 if (Cache->OrigEntry) {
1897 Code = SM_SLOC_FILE_ENTRY;
1898 } else
1899 Code = SM_SLOC_BUFFER_ENTRY;
1900 } else
1901 Code = SM_SLOC_EXPANSION_ENTRY;
1902 Record.clear();
1903 Record.push_back(Code);
1904
1905 // Starting offset of this entry within this module, so skip the dummy.
1906 Record.push_back(SLoc->getOffset() - 2);
1907 if (SLoc->isFile()) {
1908 const SrcMgr::FileInfo &File = SLoc->getFile();
1909 AddSourceLocation(File.getIncludeLoc(), Record);
1910 Record.push_back(File.getFileCharacteristic()); // FIXME: stable encoding
1911 Record.push_back(File.hasLineDirectives());
1912
1913 const SrcMgr::ContentCache *Content = File.getContentCache();
1914 bool EmitBlob = false;
1915 if (Content->OrigEntry) {
1916 assert(Content->OrigEntry == Content->ContentsEntry &&((Content->OrigEntry == Content->ContentsEntry &&
"Writing to AST an overridden file is not supported") ? static_cast
<void> (0) : __assert_fail ("Content->OrigEntry == Content->ContentsEntry && \"Writing to AST an overridden file is not supported\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 1917, __PRETTY_FUNCTION__))
1917 "Writing to AST an overridden file is not supported")((Content->OrigEntry == Content->ContentsEntry &&
"Writing to AST an overridden file is not supported") ? static_cast
<void> (0) : __assert_fail ("Content->OrigEntry == Content->ContentsEntry && \"Writing to AST an overridden file is not supported\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 1917, __PRETTY_FUNCTION__))
;
1918
1919 // The source location entry is a file. Emit input file ID.
1920 assert(InputFileIDs[Content->OrigEntry] != 0 && "Missed file entry")((InputFileIDs[Content->OrigEntry] != 0 && "Missed file entry"
) ? static_cast<void> (0) : __assert_fail ("InputFileIDs[Content->OrigEntry] != 0 && \"Missed file entry\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 1920, __PRETTY_FUNCTION__))
;
1921 Record.push_back(InputFileIDs[Content->OrigEntry]);
1922
1923 Record.push_back(File.NumCreatedFIDs);
1924
1925 FileDeclIDsTy::iterator FDI = FileDeclIDs.find(FID);
1926 if (FDI != FileDeclIDs.end()) {
1927 Record.push_back(FDI->second->FirstDeclIndex);
1928 Record.push_back(FDI->second->DeclIDs.size());
1929 } else {
1930 Record.push_back(0);
1931 Record.push_back(0);
1932 }
1933
1934 Stream.EmitRecordWithAbbrev(SLocFileAbbrv, Record);
1935
1936 if (Content->BufferOverridden || Content->IsTransient)
1937 EmitBlob = true;
1938 } else {
1939 // The source location entry is a buffer. The blob associated
1940 // with this entry contains the contents of the buffer.
1941
1942 // We add one to the size so that we capture the trailing NULL
1943 // that is required by llvm::MemoryBuffer::getMemBuffer (on
1944 // the reader side).
1945 const llvm::MemoryBuffer *Buffer =
1946 Content->getBuffer(PP.getDiagnostics(), PP.getFileManager());
1947 StringRef Name = Buffer->getBufferIdentifier();
1948 Stream.EmitRecordWithBlob(SLocBufferAbbrv, Record,
1949 StringRef(Name.data(), Name.size() + 1));
1950 EmitBlob = true;
1951
1952 if (Name == "<built-in>")
1953 PreloadSLocs.push_back(SLocEntryOffsets.size());
1954 }
1955
1956 if (EmitBlob) {
1957 // Include the implicit terminating null character in the on-disk buffer
1958 // if we're writing it uncompressed.
1959 const llvm::MemoryBuffer *Buffer =
1960 Content->getBuffer(PP.getDiagnostics(), PP.getFileManager());
1961 StringRef Blob(Buffer->getBufferStart(), Buffer->getBufferSize() + 1);
1962 emitBlob(Stream, Blob, SLocBufferBlobCompressedAbbrv,
1963 SLocBufferBlobAbbrv);
1964 }
1965 } else {
1966 // The source location entry is a macro expansion.
1967 const SrcMgr::ExpansionInfo &Expansion = SLoc->getExpansion();
1968 AddSourceLocation(Expansion.getSpellingLoc(), Record);
1969 AddSourceLocation(Expansion.getExpansionLocStart(), Record);
1970 AddSourceLocation(Expansion.isMacroArgExpansion()
1971 ? SourceLocation()
1972 : Expansion.getExpansionLocEnd(),
1973 Record);
1974 Record.push_back(Expansion.isExpansionTokenRange());
1975
1976 // Compute the token length for this macro expansion.
1977 unsigned NextOffset = SourceMgr.getNextLocalOffset();
1978 if (I + 1 != N)
1979 NextOffset = SourceMgr.getLocalSLocEntry(I + 1).getOffset();
1980 Record.push_back(NextOffset - SLoc->getOffset() - 1);
1981 Stream.EmitRecordWithAbbrev(SLocExpansionAbbrv, Record);
1982 }
1983 }
1984
1985 Stream.ExitBlock();
1986
1987 if (SLocEntryOffsets.empty())
1988 return;
1989
1990 // Write the source-location offsets table into the AST block. This
1991 // table is used for lazily loading source-location information.
1992 using namespace llvm;
1993
1994 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1995 Abbrev->Add(BitCodeAbbrevOp(SOURCE_LOCATION_OFFSETS));
1996 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 16)); // # of slocs
1997 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 16)); // total size
1998 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // offsets
1999 unsigned SLocOffsetsAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2000 {
2001 RecordData::value_type Record[] = {
2002 SOURCE_LOCATION_OFFSETS, SLocEntryOffsets.size(),
2003 SourceMgr.getNextLocalOffset() - 1 /* skip dummy */};
2004 Stream.EmitRecordWithBlob(SLocOffsetsAbbrev, Record,
2005 bytes(SLocEntryOffsets));
2006 }
2007 // Write the source location entry preloads array, telling the AST
2008 // reader which source locations entries it should load eagerly.
2009 Stream.EmitRecord(SOURCE_LOCATION_PRELOADS, PreloadSLocs);
2010
2011 // Write the line table. It depends on remapping working, so it must come
2012 // after the source location offsets.
2013 if (SourceMgr.hasLineTable()) {
2014 LineTableInfo &LineTable = SourceMgr.getLineTable();
2015
2016 Record.clear();
2017
2018 // Emit the needed file names.
2019 llvm::DenseMap<int, int> FilenameMap;
2020 FilenameMap[-1] = -1; // For unspecified filenames.
2021 for (const auto &L : LineTable) {
2022 if (L.first.ID < 0)
2023 continue;
2024 for (auto &LE : L.second) {
2025 if (FilenameMap.insert(std::make_pair(LE.FilenameID,
2026 FilenameMap.size() - 1)).second)
2027 AddPath(LineTable.getFilename(LE.FilenameID), Record);
2028 }
2029 }
2030 Record.push_back(0);
2031
2032 // Emit the line entries
2033 for (const auto &L : LineTable) {
2034 // Only emit entries for local files.
2035 if (L.first.ID < 0)
2036 continue;
2037
2038 // Emit the file ID
2039 Record.push_back(L.first.ID);
2040
2041 // Emit the line entries
2042 Record.push_back(L.second.size());
2043 for (const auto &LE : L.second) {
2044 Record.push_back(LE.FileOffset);
2045 Record.push_back(LE.LineNo);
2046 Record.push_back(FilenameMap[LE.FilenameID]);
2047 Record.push_back((unsigned)LE.FileKind);
2048 Record.push_back(LE.IncludeOffset);
2049 }
2050 }
2051
2052 Stream.EmitRecord(SOURCE_MANAGER_LINE_TABLE, Record);
2053 }
2054}
2055
2056//===----------------------------------------------------------------------===//
2057// Preprocessor Serialization
2058//===----------------------------------------------------------------------===//
2059
2060static bool shouldIgnoreMacro(MacroDirective *MD, bool IsModule,
2061 const Preprocessor &PP) {
2062 if (MacroInfo *MI = MD->getMacroInfo())
2063 if (MI->isBuiltinMacro())
2064 return true;
2065
2066 if (IsModule) {
2067 SourceLocation Loc = MD->getLocation();
2068 if (Loc.isInvalid())
2069 return true;
2070 if (PP.getSourceManager().getFileID(Loc) == PP.getPredefinesFileID())
2071 return true;
2072 }
2073
2074 return false;
2075}
2076
2077/// Writes the block containing the serialized form of the
2078/// preprocessor.
2079void ASTWriter::WritePreprocessor(const Preprocessor &PP, bool IsModule) {
2080 PreprocessingRecord *PPRec = PP.getPreprocessingRecord();
2081 if (PPRec)
2082 WritePreprocessorDetail(*PPRec);
2083
2084 RecordData Record;
2085 RecordData ModuleMacroRecord;
2086
2087 // If the preprocessor __COUNTER__ value has been bumped, remember it.
2088 if (PP.getCounterValue() != 0) {
2089 RecordData::value_type Record[] = {PP.getCounterValue()};
2090 Stream.EmitRecord(PP_COUNTER_VALUE, Record);
2091 }
2092
2093 if (PP.isRecordingPreamble() && PP.hasRecordedPreamble()) {
2094 assert(!IsModule)((!IsModule) ? static_cast<void> (0) : __assert_fail ("!IsModule"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2094, __PRETTY_FUNCTION__))
;
2095 auto SkipInfo = PP.getPreambleSkipInfo();
2096 if (SkipInfo.hasValue()) {
2097 Record.push_back(true);
2098 AddSourceLocation(SkipInfo->HashTokenLoc, Record);
2099 AddSourceLocation(SkipInfo->IfTokenLoc, Record);
2100 Record.push_back(SkipInfo->FoundNonSkipPortion);
2101 Record.push_back(SkipInfo->FoundElse);
2102 AddSourceLocation(SkipInfo->ElseLoc, Record);
2103 } else {
2104 Record.push_back(false);
2105 }
2106 for (const auto &Cond : PP.getPreambleConditionalStack()) {
2107 AddSourceLocation(Cond.IfLoc, Record);
2108 Record.push_back(Cond.WasSkipping);
2109 Record.push_back(Cond.FoundNonSkip);
2110 Record.push_back(Cond.FoundElse);
2111 }
2112 Stream.EmitRecord(PP_CONDITIONAL_STACK, Record);
2113 Record.clear();
2114 }
2115
2116 // Enter the preprocessor block.
2117 Stream.EnterSubblock(PREPROCESSOR_BLOCK_ID, 3);
2118
2119 // If the AST file contains __DATE__ or __TIME__ emit a warning about this.
2120 // FIXME: Include a location for the use, and say which one was used.
2121 if (PP.SawDateOrTime())
2122 PP.Diag(SourceLocation(), diag::warn_module_uses_date_time) << IsModule;
2123
2124 // Loop over all the macro directives that are live at the end of the file,
2125 // emitting each to the PP section.
2126
2127 // Construct the list of identifiers with macro directives that need to be
2128 // serialized.
2129 SmallVector<const IdentifierInfo *, 128> MacroIdentifiers;
2130 for (auto &Id : PP.getIdentifierTable())
2131 if (Id.second->hadMacroDefinition() &&
2132 (!Id.second->isFromAST() ||
2133 Id.second->hasChangedSinceDeserialization()))
2134 MacroIdentifiers.push_back(Id.second);
2135 // Sort the set of macro definitions that need to be serialized by the
2136 // name of the macro, to provide a stable ordering.
2137 llvm::sort(MacroIdentifiers, llvm::deref<std::less<>>());
2138
2139 // Emit the macro directives as a list and associate the offset with the
2140 // identifier they belong to.
2141 for (const IdentifierInfo *Name : MacroIdentifiers) {
2142 MacroDirective *MD = PP.getLocalMacroDirectiveHistory(Name);
2143 auto StartOffset = Stream.GetCurrentBitNo();
2144
2145 // Emit the macro directives in reverse source order.
2146 for (; MD; MD = MD->getPrevious()) {
2147 // Once we hit an ignored macro, we're done: the rest of the chain
2148 // will all be ignored macros.
2149 if (shouldIgnoreMacro(MD, IsModule, PP))
2150 break;
2151
2152 AddSourceLocation(MD->getLocation(), Record);
2153 Record.push_back(MD->getKind());
2154 if (auto *DefMD = dyn_cast<DefMacroDirective>(MD)) {
2155 Record.push_back(getMacroRef(DefMD->getInfo(), Name));
2156 } else if (auto *VisMD = dyn_cast<VisibilityMacroDirective>(MD)) {
2157 Record.push_back(VisMD->isPublic());
2158 }
2159 }
2160
2161 // Write out any exported module macros.
2162 bool EmittedModuleMacros = false;
2163 // We write out exported module macros for PCH as well.
2164 auto Leafs = PP.getLeafModuleMacros(Name);
2165 SmallVector<ModuleMacro*, 8> Worklist(Leafs.begin(), Leafs.end());
2166 llvm::DenseMap<ModuleMacro*, unsigned> Visits;
2167 while (!Worklist.empty()) {
2168 auto *Macro = Worklist.pop_back_val();
2169
2170 // Emit a record indicating this submodule exports this macro.
2171 ModuleMacroRecord.push_back(
2172 getSubmoduleID(Macro->getOwningModule()));
2173 ModuleMacroRecord.push_back(getMacroRef(Macro->getMacroInfo(), Name));
2174 for (auto *M : Macro->overrides())
2175 ModuleMacroRecord.push_back(getSubmoduleID(M->getOwningModule()));
2176
2177 Stream.EmitRecord(PP_MODULE_MACRO, ModuleMacroRecord);
2178 ModuleMacroRecord.clear();
2179
2180 // Enqueue overridden macros once we've visited all their ancestors.
2181 for (auto *M : Macro->overrides())
2182 if (++Visits[M] == M->getNumOverridingMacros())
2183 Worklist.push_back(M);
2184
2185 EmittedModuleMacros = true;
2186 }
2187
2188 if (Record.empty() && !EmittedModuleMacros)
2189 continue;
2190
2191 IdentMacroDirectivesOffsetMap[Name] = StartOffset;
2192 Stream.EmitRecord(PP_MACRO_DIRECTIVE_HISTORY, Record);
2193 Record.clear();
2194 }
2195
2196 /// Offsets of each of the macros into the bitstream, indexed by
2197 /// the local macro ID
2198 ///
2199 /// For each identifier that is associated with a macro, this map
2200 /// provides the offset into the bitstream where that macro is
2201 /// defined.
2202 std::vector<uint32_t> MacroOffsets;
2203
2204 for (unsigned I = 0, N = MacroInfosToEmit.size(); I != N; ++I) {
2205 const IdentifierInfo *Name = MacroInfosToEmit[I].Name;
2206 MacroInfo *MI = MacroInfosToEmit[I].MI;
2207 MacroID ID = MacroInfosToEmit[I].ID;
2208
2209 if (ID < FirstMacroID) {
2210 assert(0 && "Loaded MacroInfo entered MacroInfosToEmit ?")((0 && "Loaded MacroInfo entered MacroInfosToEmit ?")
? static_cast<void> (0) : __assert_fail ("0 && \"Loaded MacroInfo entered MacroInfosToEmit ?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2210, __PRETTY_FUNCTION__))
;
2211 continue;
2212 }
2213
2214 // Record the local offset of this macro.
2215 unsigned Index = ID - FirstMacroID;
2216 if (Index == MacroOffsets.size())
2217 MacroOffsets.push_back(Stream.GetCurrentBitNo());
2218 else {
2219 if (Index > MacroOffsets.size())
2220 MacroOffsets.resize(Index + 1);
2221
2222 MacroOffsets[Index] = Stream.GetCurrentBitNo();
2223 }
2224
2225 AddIdentifierRef(Name, Record);
2226 AddSourceLocation(MI->getDefinitionLoc(), Record);
2227 AddSourceLocation(MI->getDefinitionEndLoc(), Record);
2228 Record.push_back(MI->isUsed());
2229 Record.push_back(MI->isUsedForHeaderGuard());
2230 unsigned Code;
2231 if (MI->isObjectLike()) {
2232 Code = PP_MACRO_OBJECT_LIKE;
2233 } else {
2234 Code = PP_MACRO_FUNCTION_LIKE;
2235
2236 Record.push_back(MI->isC99Varargs());
2237 Record.push_back(MI->isGNUVarargs());
2238 Record.push_back(MI->hasCommaPasting());
2239 Record.push_back(MI->getNumParams());
2240 for (const IdentifierInfo *Param : MI->params())
2241 AddIdentifierRef(Param, Record);
2242 }
2243
2244 // If we have a detailed preprocessing record, record the macro definition
2245 // ID that corresponds to this macro.
2246 if (PPRec)
2247 Record.push_back(MacroDefinitions[PPRec->findMacroDefinition(MI)]);
2248
2249 Stream.EmitRecord(Code, Record);
2250 Record.clear();
2251
2252 // Emit the tokens array.
2253 for (unsigned TokNo = 0, e = MI->getNumTokens(); TokNo != e; ++TokNo) {
2254 // Note that we know that the preprocessor does not have any annotation
2255 // tokens in it because they are created by the parser, and thus can't
2256 // be in a macro definition.
2257 const Token &Tok = MI->getReplacementToken(TokNo);
2258 AddToken(Tok, Record);
2259 Stream.EmitRecord(PP_TOKEN, Record);
2260 Record.clear();
2261 }
2262 ++NumMacros;
2263 }
2264
2265 Stream.ExitBlock();
2266
2267 // Write the offsets table for macro IDs.
2268 using namespace llvm;
2269
2270 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2271 Abbrev->Add(BitCodeAbbrevOp(MACRO_OFFSET));
2272 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of macros
2273 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // first ID
2274 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2275
2276 unsigned MacroOffsetAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2277 {
2278 RecordData::value_type Record[] = {MACRO_OFFSET, MacroOffsets.size(),
2279 FirstMacroID - NUM_PREDEF_MACRO_IDS};
2280 Stream.EmitRecordWithBlob(MacroOffsetAbbrev, Record, bytes(MacroOffsets));
2281 }
2282}
2283
2284void ASTWriter::WritePreprocessorDetail(PreprocessingRecord &PPRec) {
2285 if (PPRec.local_begin() == PPRec.local_end())
2286 return;
2287
2288 SmallVector<PPEntityOffset, 64> PreprocessedEntityOffsets;
2289
2290 // Enter the preprocessor block.
2291 Stream.EnterSubblock(PREPROCESSOR_DETAIL_BLOCK_ID, 3);
2292
2293 // If the preprocessor has a preprocessing record, emit it.
2294 unsigned NumPreprocessingRecords = 0;
2295 using namespace llvm;
2296
2297 // Set up the abbreviation for
2298 unsigned InclusionAbbrev = 0;
2299 {
2300 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2301 Abbrev->Add(BitCodeAbbrevOp(PPD_INCLUSION_DIRECTIVE));
2302 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // filename length
2303 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // in quotes
2304 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // kind
2305 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // imported module
2306 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2307 InclusionAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2308 }
2309
2310 unsigned FirstPreprocessorEntityID
2311 = (Chain ? PPRec.getNumLoadedPreprocessedEntities() : 0)
2312 + NUM_PREDEF_PP_ENTITY_IDS;
2313 unsigned NextPreprocessorEntityID = FirstPreprocessorEntityID;
2314 RecordData Record;
2315 for (PreprocessingRecord::iterator E = PPRec.local_begin(),
2316 EEnd = PPRec.local_end();
2317 E != EEnd;
2318 (void)++E, ++NumPreprocessingRecords, ++NextPreprocessorEntityID) {
2319 Record.clear();
2320
2321 PreprocessedEntityOffsets.push_back(
2322 PPEntityOffset((*E)->getSourceRange(), Stream.GetCurrentBitNo()));
2323
2324 if (auto *MD = dyn_cast<MacroDefinitionRecord>(*E)) {
2325 // Record this macro definition's ID.
2326 MacroDefinitions[MD] = NextPreprocessorEntityID;
2327
2328 AddIdentifierRef(MD->getName(), Record);
2329 Stream.EmitRecord(PPD_MACRO_DEFINITION, Record);
2330 continue;
2331 }
2332
2333 if (auto *ME = dyn_cast<MacroExpansion>(*E)) {
2334 Record.push_back(ME->isBuiltinMacro());
2335 if (ME->isBuiltinMacro())
2336 AddIdentifierRef(ME->getName(), Record);
2337 else
2338 Record.push_back(MacroDefinitions[ME->getDefinition()]);
2339 Stream.EmitRecord(PPD_MACRO_EXPANSION, Record);
2340 continue;
2341 }
2342
2343 if (auto *ID = dyn_cast<InclusionDirective>(*E)) {
2344 Record.push_back(PPD_INCLUSION_DIRECTIVE);
2345 Record.push_back(ID->getFileName().size());
2346 Record.push_back(ID->wasInQuotes());
2347 Record.push_back(static_cast<unsigned>(ID->getKind()));
2348 Record.push_back(ID->importedModule());
2349 SmallString<64> Buffer;
2350 Buffer += ID->getFileName();
2351 // Check that the FileEntry is not null because it was not resolved and
2352 // we create a PCH even with compiler errors.
2353 if (ID->getFile())
2354 Buffer += ID->getFile()->getName();
2355 Stream.EmitRecordWithBlob(InclusionAbbrev, Record, Buffer);
2356 continue;
2357 }
2358
2359 llvm_unreachable("Unhandled PreprocessedEntity in ASTWriter")::llvm::llvm_unreachable_internal("Unhandled PreprocessedEntity in ASTWriter"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2359)
;
2360 }
2361 Stream.ExitBlock();
2362
2363 // Write the offsets table for the preprocessing record.
2364 if (NumPreprocessingRecords > 0) {
2365 assert(PreprocessedEntityOffsets.size() == NumPreprocessingRecords)((PreprocessedEntityOffsets.size() == NumPreprocessingRecords
) ? static_cast<void> (0) : __assert_fail ("PreprocessedEntityOffsets.size() == NumPreprocessingRecords"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2365, __PRETTY_FUNCTION__))
;
2366
2367 // Write the offsets table for identifier IDs.
2368 using namespace llvm;
2369
2370 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2371 Abbrev->Add(BitCodeAbbrevOp(PPD_ENTITIES_OFFSETS));
2372 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // first pp entity
2373 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2374 unsigned PPEOffsetAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2375
2376 RecordData::value_type Record[] = {PPD_ENTITIES_OFFSETS,
2377 FirstPreprocessorEntityID -
2378 NUM_PREDEF_PP_ENTITY_IDS};
2379 Stream.EmitRecordWithBlob(PPEOffsetAbbrev, Record,
2380 bytes(PreprocessedEntityOffsets));
2381 }
2382
2383 // Write the skipped region table for the preprocessing record.
2384 ArrayRef<SourceRange> SkippedRanges = PPRec.getSkippedRanges();
2385 if (SkippedRanges.size() > 0) {
2386 std::vector<PPSkippedRange> SerializedSkippedRanges;
2387 SerializedSkippedRanges.reserve(SkippedRanges.size());
2388 for (auto const& Range : SkippedRanges)
2389 SerializedSkippedRanges.emplace_back(Range);
2390
2391 using namespace llvm;
2392 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2393 Abbrev->Add(BitCodeAbbrevOp(PPD_SKIPPED_RANGES));
2394 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2395 unsigned PPESkippedRangeAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2396
2397 Record.clear();
2398 Record.push_back(PPD_SKIPPED_RANGES);
2399 Stream.EmitRecordWithBlob(PPESkippedRangeAbbrev, Record,
2400 bytes(SerializedSkippedRanges));
2401 }
2402}
2403
2404unsigned ASTWriter::getLocalOrImportedSubmoduleID(Module *Mod) {
2405 if (!Mod)
2406 return 0;
2407
2408 llvm::DenseMap<Module *, unsigned>::iterator Known = SubmoduleIDs.find(Mod);
2409 if (Known != SubmoduleIDs.end())
2410 return Known->second;
2411
2412 auto *Top = Mod->getTopLevelModule();
2413 if (Top != WritingModule &&
2414 (getLangOpts().CompilingPCH ||
2415 !Top->fullModuleNameIs(StringRef(getLangOpts().CurrentModule))))
2416 return 0;
2417
2418 return SubmoduleIDs[Mod] = NextSubmoduleID++;
2419}
2420
2421unsigned ASTWriter::getSubmoduleID(Module *Mod) {
2422 // FIXME: This can easily happen, if we have a reference to a submodule that
2423 // did not result in us loading a module file for that submodule. For
2424 // instance, a cross-top-level-module 'conflict' declaration will hit this.
2425 unsigned ID = getLocalOrImportedSubmoduleID(Mod);
2426 assert((ID || !Mod) &&(((ID || !Mod) && "asked for module ID for non-local, non-imported module"
) ? static_cast<void> (0) : __assert_fail ("(ID || !Mod) && \"asked for module ID for non-local, non-imported module\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2427, __PRETTY_FUNCTION__))
2427 "asked for module ID for non-local, non-imported module")(((ID || !Mod) && "asked for module ID for non-local, non-imported module"
) ? static_cast<void> (0) : __assert_fail ("(ID || !Mod) && \"asked for module ID for non-local, non-imported module\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2427, __PRETTY_FUNCTION__))
;
2428 return ID;
2429}
2430
2431/// Compute the number of modules within the given tree (including the
2432/// given module).
2433static unsigned getNumberOfModules(Module *Mod) {
2434 unsigned ChildModules = 0;
2435 for (auto Sub = Mod->submodule_begin(), SubEnd = Mod->submodule_end();
2436 Sub != SubEnd; ++Sub)
2437 ChildModules += getNumberOfModules(*Sub);
2438
2439 return ChildModules + 1;
2440}
2441
2442void ASTWriter::WriteSubmodules(Module *WritingModule) {
2443 // Enter the submodule description block.
2444 Stream.EnterSubblock(SUBMODULE_BLOCK_ID, /*bits for abbreviations*/5);
2445
2446 // Write the abbreviations needed for the submodules block.
2447 using namespace llvm;
2448
2449 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2450 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_DEFINITION));
2451 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ID
2452 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Parent
2453 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Kind
2454 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFramework
2455 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsExplicit
2456 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsSystem
2457 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsExternC
2458 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InferSubmodules...
2459 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InferExplicit...
2460 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InferExportWild...
2461 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ConfigMacrosExh...
2462 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ModuleMapIsPriv...
2463 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2464 unsigned DefinitionAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2465
2466 Abbrev = std::make_shared<BitCodeAbbrev>();
2467 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_UMBRELLA_HEADER));
2468 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2469 unsigned UmbrellaAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2470
2471 Abbrev = std::make_shared<BitCodeAbbrev>();
2472 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_HEADER));
2473 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2474 unsigned HeaderAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2475
2476 Abbrev = std::make_shared<BitCodeAbbrev>();
2477 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_TOPHEADER));
2478 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2479 unsigned TopHeaderAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2480
2481 Abbrev = std::make_shared<BitCodeAbbrev>();
2482 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_UMBRELLA_DIR));
2483 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2484 unsigned UmbrellaDirAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2485
2486 Abbrev = std::make_shared<BitCodeAbbrev>();
2487 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_REQUIRES));
2488 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // State
2489 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Feature
2490 unsigned RequiresAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2491
2492 Abbrev = std::make_shared<BitCodeAbbrev>();
2493 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_EXCLUDED_HEADER));
2494 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2495 unsigned ExcludedHeaderAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2496
2497 Abbrev = std::make_shared<BitCodeAbbrev>();
2498 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_TEXTUAL_HEADER));
2499 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2500 unsigned TextualHeaderAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2501
2502 Abbrev = std::make_shared<BitCodeAbbrev>();
2503 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_PRIVATE_HEADER));
2504 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2505 unsigned PrivateHeaderAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2506
2507 Abbrev = std::make_shared<BitCodeAbbrev>();
2508 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_PRIVATE_TEXTUAL_HEADER));
2509 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2510 unsigned PrivateTextualHeaderAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2511
2512 Abbrev = std::make_shared<BitCodeAbbrev>();
2513 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_LINK_LIBRARY));
2514 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFramework
2515 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2516 unsigned LinkLibraryAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2517
2518 Abbrev = std::make_shared<BitCodeAbbrev>();
2519 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_CONFIG_MACRO));
2520 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Macro name
2521 unsigned ConfigMacroAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2522
2523 Abbrev = std::make_shared<BitCodeAbbrev>();
2524 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_CONFLICT));
2525 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Other module
2526 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Message
2527 unsigned ConflictAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2528
2529 Abbrev = std::make_shared<BitCodeAbbrev>();
2530 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_EXPORT_AS));
2531 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Macro name
2532 unsigned ExportAsAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2533
2534 // Write the submodule metadata block.
2535 RecordData::value_type Record[] = {
2536 getNumberOfModules(WritingModule),
2537 FirstSubmoduleID - NUM_PREDEF_SUBMODULE_IDS};
2538 Stream.EmitRecord(SUBMODULE_METADATA, Record);
2539
2540 // Write all of the submodules.
2541 std::queue<Module *> Q;
2542 Q.push(WritingModule);
2543 while (!Q.empty()) {
2544 Module *Mod = Q.front();
2545 Q.pop();
2546 unsigned ID = getSubmoduleID(Mod);
2547
2548 uint64_t ParentID = 0;
2549 if (Mod->Parent) {
2550 assert(SubmoduleIDs[Mod->Parent] && "Submodule parent not written?")((SubmoduleIDs[Mod->Parent] && "Submodule parent not written?"
) ? static_cast<void> (0) : __assert_fail ("SubmoduleIDs[Mod->Parent] && \"Submodule parent not written?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2550, __PRETTY_FUNCTION__))
;
2551 ParentID = SubmoduleIDs[Mod->Parent];
2552 }
2553
2554 // Emit the definition of the block.
2555 {
2556 RecordData::value_type Record[] = {SUBMODULE_DEFINITION,
2557 ID,
2558 ParentID,
2559 (RecordData::value_type)Mod->Kind,
2560 Mod->IsFramework,
2561 Mod->IsExplicit,
2562 Mod->IsSystem,
2563 Mod->IsExternC,
2564 Mod->InferSubmodules,
2565 Mod->InferExplicitSubmodules,
2566 Mod->InferExportWildcard,
2567 Mod->ConfigMacrosExhaustive,
2568 Mod->ModuleMapIsPrivate};
2569 Stream.EmitRecordWithBlob(DefinitionAbbrev, Record, Mod->Name);
2570 }
2571
2572 // Emit the requirements.
2573 for (const auto &R : Mod->Requirements) {
2574 RecordData::value_type Record[] = {SUBMODULE_REQUIRES, R.second};
2575 Stream.EmitRecordWithBlob(RequiresAbbrev, Record, R.first);
2576 }
2577
2578 // Emit the umbrella header, if there is one.
2579 if (auto UmbrellaHeader = Mod->getUmbrellaHeader()) {
2580 RecordData::value_type Record[] = {SUBMODULE_UMBRELLA_HEADER};
2581 Stream.EmitRecordWithBlob(UmbrellaAbbrev, Record,
2582 UmbrellaHeader.NameAsWritten);
2583 } else if (auto UmbrellaDir = Mod->getUmbrellaDir()) {
2584 RecordData::value_type Record[] = {SUBMODULE_UMBRELLA_DIR};
2585 Stream.EmitRecordWithBlob(UmbrellaDirAbbrev, Record,
2586 UmbrellaDir.NameAsWritten);
2587 }
2588
2589 // Emit the headers.
2590 struct {
2591 unsigned RecordKind;
2592 unsigned Abbrev;
2593 Module::HeaderKind HeaderKind;
2594 } HeaderLists[] = {
2595 {SUBMODULE_HEADER, HeaderAbbrev, Module::HK_Normal},
2596 {SUBMODULE_TEXTUAL_HEADER, TextualHeaderAbbrev, Module::HK_Textual},
2597 {SUBMODULE_PRIVATE_HEADER, PrivateHeaderAbbrev, Module::HK_Private},
2598 {SUBMODULE_PRIVATE_TEXTUAL_HEADER, PrivateTextualHeaderAbbrev,
2599 Module::HK_PrivateTextual},
2600 {SUBMODULE_EXCLUDED_HEADER, ExcludedHeaderAbbrev, Module::HK_Excluded}
2601 };
2602 for (auto &HL : HeaderLists) {
2603 RecordData::value_type Record[] = {HL.RecordKind};
2604 for (auto &H : Mod->Headers[HL.HeaderKind])
2605 Stream.EmitRecordWithBlob(HL.Abbrev, Record, H.NameAsWritten);
2606 }
2607
2608 // Emit the top headers.
2609 {
2610 auto TopHeaders = Mod->getTopHeaders(PP->getFileManager());
2611 RecordData::value_type Record[] = {SUBMODULE_TOPHEADER};
2612 for (auto *H : TopHeaders)
2613 Stream.EmitRecordWithBlob(TopHeaderAbbrev, Record, H->getName());
2614 }
2615
2616 // Emit the imports.
2617 if (!Mod->Imports.empty()) {
2618 RecordData Record;
2619 for (auto *I : Mod->Imports)
2620 Record.push_back(getSubmoduleID(I));
2621 Stream.EmitRecord(SUBMODULE_IMPORTS, Record);
2622 }
2623
2624 // Emit the exports.
2625 if (!Mod->Exports.empty()) {
2626 RecordData Record;
2627 for (const auto &E : Mod->Exports) {
2628 // FIXME: This may fail; we don't require that all exported modules
2629 // are local or imported.
2630 Record.push_back(getSubmoduleID(E.getPointer()));
2631 Record.push_back(E.getInt());
2632 }
2633 Stream.EmitRecord(SUBMODULE_EXPORTS, Record);
2634 }
2635
2636 //FIXME: How do we emit the 'use'd modules? They may not be submodules.
2637 // Might be unnecessary as use declarations are only used to build the
2638 // module itself.
2639
2640 // Emit the link libraries.
2641 for (const auto &LL : Mod->LinkLibraries) {
2642 RecordData::value_type Record[] = {SUBMODULE_LINK_LIBRARY,
2643 LL.IsFramework};
2644 Stream.EmitRecordWithBlob(LinkLibraryAbbrev, Record, LL.Library);
2645 }
2646
2647 // Emit the conflicts.
2648 for (const auto &C : Mod->Conflicts) {
2649 // FIXME: This may fail; we don't require that all conflicting modules
2650 // are local or imported.
2651 RecordData::value_type Record[] = {SUBMODULE_CONFLICT,
2652 getSubmoduleID(C.Other)};
2653 Stream.EmitRecordWithBlob(ConflictAbbrev, Record, C.Message);
2654 }
2655
2656 // Emit the configuration macros.
2657 for (const auto &CM : Mod->ConfigMacros) {
2658 RecordData::value_type Record[] = {SUBMODULE_CONFIG_MACRO};
2659 Stream.EmitRecordWithBlob(ConfigMacroAbbrev, Record, CM);
2660 }
2661
2662 // Emit the initializers, if any.
2663 RecordData Inits;
2664 for (Decl *D : Context->getModuleInitializers(Mod))
2665 Inits.push_back(GetDeclRef(D));
2666 if (!Inits.empty())
2667 Stream.EmitRecord(SUBMODULE_INITIALIZERS, Inits);
2668
2669 // Emit the name of the re-exported module, if any.
2670 if (!Mod->ExportAsModule.empty()) {
2671 RecordData::value_type Record[] = {SUBMODULE_EXPORT_AS};
2672 Stream.EmitRecordWithBlob(ExportAsAbbrev, Record, Mod->ExportAsModule);
2673 }
2674
2675 // Queue up the submodules of this module.
2676 for (auto *M : Mod->submodules())
2677 Q.push(M);
2678 }
2679
2680 Stream.ExitBlock();
2681
2682 assert((NextSubmoduleID - FirstSubmoduleID ==(((NextSubmoduleID - FirstSubmoduleID == getNumberOfModules(WritingModule
)) && "Wrong # of submodules; found a reference to a non-local, "
"non-imported submodule?") ? static_cast<void> (0) : __assert_fail
("(NextSubmoduleID - FirstSubmoduleID == getNumberOfModules(WritingModule)) && \"Wrong # of submodules; found a reference to a non-local, \" \"non-imported submodule?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2685, __PRETTY_FUNCTION__))
2683 getNumberOfModules(WritingModule)) &&(((NextSubmoduleID - FirstSubmoduleID == getNumberOfModules(WritingModule
)) && "Wrong # of submodules; found a reference to a non-local, "
"non-imported submodule?") ? static_cast<void> (0) : __assert_fail
("(NextSubmoduleID - FirstSubmoduleID == getNumberOfModules(WritingModule)) && \"Wrong # of submodules; found a reference to a non-local, \" \"non-imported submodule?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2685, __PRETTY_FUNCTION__))
2684 "Wrong # of submodules; found a reference to a non-local, "(((NextSubmoduleID - FirstSubmoduleID == getNumberOfModules(WritingModule
)) && "Wrong # of submodules; found a reference to a non-local, "
"non-imported submodule?") ? static_cast<void> (0) : __assert_fail
("(NextSubmoduleID - FirstSubmoduleID == getNumberOfModules(WritingModule)) && \"Wrong # of submodules; found a reference to a non-local, \" \"non-imported submodule?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2685, __PRETTY_FUNCTION__))
2685 "non-imported submodule?")(((NextSubmoduleID - FirstSubmoduleID == getNumberOfModules(WritingModule
)) && "Wrong # of submodules; found a reference to a non-local, "
"non-imported submodule?") ? static_cast<void> (0) : __assert_fail
("(NextSubmoduleID - FirstSubmoduleID == getNumberOfModules(WritingModule)) && \"Wrong # of submodules; found a reference to a non-local, \" \"non-imported submodule?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2685, __PRETTY_FUNCTION__))
;
2686}
2687
2688void ASTWriter::WritePragmaDiagnosticMappings(const DiagnosticsEngine &Diag,
2689 bool isModule) {
2690 llvm::SmallDenseMap<const DiagnosticsEngine::DiagState *, unsigned, 64>
2691 DiagStateIDMap;
2692 unsigned CurrID = 0;
2693 RecordData Record;
2694
2695 auto EncodeDiagStateFlags =
2696 [](const DiagnosticsEngine::DiagState *DS) -> unsigned {
2697 unsigned Result = (unsigned)DS->ExtBehavior;
2698 for (unsigned Val :
2699 {(unsigned)DS->IgnoreAllWarnings, (unsigned)DS->EnableAllWarnings,
2700 (unsigned)DS->WarningsAsErrors, (unsigned)DS->ErrorsAsFatal,
2701 (unsigned)DS->SuppressSystemWarnings})
2702 Result = (Result << 1) | Val;
2703 return Result;
2704 };
2705
2706 unsigned Flags = EncodeDiagStateFlags(Diag.DiagStatesByLoc.FirstDiagState);
2707 Record.push_back(Flags);
2708
2709 auto AddDiagState = [&](const DiagnosticsEngine::DiagState *State,
2710 bool IncludeNonPragmaStates) {
2711 // Ensure that the diagnostic state wasn't modified since it was created.
2712 // We will not correctly round-trip this information otherwise.
2713 assert(Flags == EncodeDiagStateFlags(State) &&((Flags == EncodeDiagStateFlags(State) && "diag state flags vary in single AST file"
) ? static_cast<void> (0) : __assert_fail ("Flags == EncodeDiagStateFlags(State) && \"diag state flags vary in single AST file\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2714, __PRETTY_FUNCTION__))
2714 "diag state flags vary in single AST file")((Flags == EncodeDiagStateFlags(State) && "diag state flags vary in single AST file"
) ? static_cast<void> (0) : __assert_fail ("Flags == EncodeDiagStateFlags(State) && \"diag state flags vary in single AST file\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2714, __PRETTY_FUNCTION__))
;
2715
2716 unsigned &DiagStateID = DiagStateIDMap[State];
2717 Record.push_back(DiagStateID);
2718
2719 if (DiagStateID == 0) {
2720 DiagStateID = ++CurrID;
2721
2722 // Add a placeholder for the number of mappings.
2723 auto SizeIdx = Record.size();
2724 Record.emplace_back();
2725 for (const auto &I : *State) {
2726 if (I.second.isPragma() || IncludeNonPragmaStates) {
2727 Record.push_back(I.first);
2728 Record.push_back(I.second.serialize());
2729 }
2730 }
2731 // Update the placeholder.
2732 Record[SizeIdx] = (Record.size() - SizeIdx) / 2;
2733 }
2734 };
2735
2736 AddDiagState(Diag.DiagStatesByLoc.FirstDiagState, isModule);
2737
2738 // Reserve a spot for the number of locations with state transitions.
2739 auto NumLocationsIdx = Record.size();
2740 Record.emplace_back();
2741
2742 // Emit the state transitions.
2743 unsigned NumLocations = 0;
2744 for (auto &FileIDAndFile : Diag.DiagStatesByLoc.Files) {
2745 if (!FileIDAndFile.first.isValid() ||
2746 !FileIDAndFile.second.HasLocalTransitions)
2747 continue;
2748 ++NumLocations;
2749
2750 SourceLocation Loc = Diag.SourceMgr->getComposedLoc(FileIDAndFile.first, 0);
2751 assert(!Loc.isInvalid() && "start loc for valid FileID is invalid")((!Loc.isInvalid() && "start loc for valid FileID is invalid"
) ? static_cast<void> (0) : __assert_fail ("!Loc.isInvalid() && \"start loc for valid FileID is invalid\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2751, __PRETTY_FUNCTION__))
;
2752 AddSourceLocation(Loc, Record);
2753
2754 Record.push_back(FileIDAndFile.second.StateTransitions.size());
2755 for (auto &StatePoint : FileIDAndFile.second.StateTransitions) {
2756 Record.push_back(StatePoint.Offset);
2757 AddDiagState(StatePoint.State, false);
2758 }
2759 }
2760
2761 // Backpatch the number of locations.
2762 Record[NumLocationsIdx] = NumLocations;
2763
2764 // Emit CurDiagStateLoc. Do it last in order to match source order.
2765 //
2766 // This also protects against a hypothetical corner case with simulating
2767 // -Werror settings for implicit modules in the ASTReader, where reading
2768 // CurDiagState out of context could change whether warning pragmas are
2769 // treated as errors.
2770 AddSourceLocation(Diag.DiagStatesByLoc.CurDiagStateLoc, Record);
2771 AddDiagState(Diag.DiagStatesByLoc.CurDiagState, false);
2772
2773 Stream.EmitRecord(DIAG_PRAGMA_MAPPINGS, Record);
2774}
2775
2776//===----------------------------------------------------------------------===//
2777// Type Serialization
2778//===----------------------------------------------------------------------===//
2779
2780/// Write the representation of a type to the AST stream.
2781void ASTWriter::WriteType(QualType T) {
2782 TypeIdx &IdxRef = TypeIdxs[T];
2783 if (IdxRef.getIndex() == 0) // we haven't seen this type before.
2784 IdxRef = TypeIdx(NextTypeID++);
2785 TypeIdx Idx = IdxRef;
2786
2787 assert(Idx.getIndex() >= FirstTypeID && "Re-writing a type from a prior AST")((Idx.getIndex() >= FirstTypeID && "Re-writing a type from a prior AST"
) ? static_cast<void> (0) : __assert_fail ("Idx.getIndex() >= FirstTypeID && \"Re-writing a type from a prior AST\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2787, __PRETTY_FUNCTION__))
;
2788
2789 // Emit the type's representation.
2790 uint64_t Offset = ASTTypeWriter(*this).write(T);
2791
2792 // Record the offset for this type.
2793 unsigned Index = Idx.getIndex() - FirstTypeID;
2794 if (TypeOffsets.size() == Index)
2795 TypeOffsets.push_back(Offset);
2796 else if (TypeOffsets.size() < Index) {
2797 TypeOffsets.resize(Index + 1);
2798 TypeOffsets[Index] = Offset;
2799 } else {
2800 llvm_unreachable("Types emitted in wrong order")::llvm::llvm_unreachable_internal("Types emitted in wrong order"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2800)
;
2801 }
2802}
2803
2804//===----------------------------------------------------------------------===//
2805// Declaration Serialization
2806//===----------------------------------------------------------------------===//
2807
2808/// Write the block containing all of the declaration IDs
2809/// lexically declared within the given DeclContext.
2810///
2811/// \returns the offset of the DECL_CONTEXT_LEXICAL block within the
2812/// bitstream, or 0 if no block was written.
2813uint64_t ASTWriter::WriteDeclContextLexicalBlock(ASTContext &Context,
2814 DeclContext *DC) {
2815 if (DC->decls_empty())
2816 return 0;
2817
2818 uint64_t Offset = Stream.GetCurrentBitNo();
2819 SmallVector<uint32_t, 128> KindDeclPairs;
2820 for (const auto *D : DC->decls()) {
2821 KindDeclPairs.push_back(D->getKind());
2822 KindDeclPairs.push_back(GetDeclRef(D));
2823 }
2824
2825 ++NumLexicalDeclContexts;
2826 RecordData::value_type Record[] = {DECL_CONTEXT_LEXICAL};
2827 Stream.EmitRecordWithBlob(DeclContextLexicalAbbrev, Record,
2828 bytes(KindDeclPairs));
2829 return Offset;
2830}
2831
2832void ASTWriter::WriteTypeDeclOffsets() {
2833 using namespace llvm;
2834
2835 // Write the type offsets array
2836 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2837 Abbrev->Add(BitCodeAbbrevOp(TYPE_OFFSET));
2838 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of types
2839 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // base type index
2840 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // types block
2841 unsigned TypeOffsetAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2842 {
2843 RecordData::value_type Record[] = {TYPE_OFFSET, TypeOffsets.size(),
2844 FirstTypeID - NUM_PREDEF_TYPE_IDS};
2845 Stream.EmitRecordWithBlob(TypeOffsetAbbrev, Record, bytes(TypeOffsets));
2846 }
2847
2848 // Write the declaration offsets array
2849 Abbrev = std::make_shared<BitCodeAbbrev>();
2850 Abbrev->Add(BitCodeAbbrevOp(DECL_OFFSET));
2851 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of declarations
2852 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // base decl ID
2853 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // declarations block
2854 unsigned DeclOffsetAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2855 {
2856 RecordData::value_type Record[] = {DECL_OFFSET, DeclOffsets.size(),
2857 FirstDeclID - NUM_PREDEF_DECL_IDS};
2858 Stream.EmitRecordWithBlob(DeclOffsetAbbrev, Record, bytes(DeclOffsets));
2859 }
2860}
2861
2862void ASTWriter::WriteFileDeclIDsMap() {
2863 using namespace llvm;
2864
2865 SmallVector<std::pair<FileID, DeclIDInFileInfo *>, 64> SortedFileDeclIDs(
2866 FileDeclIDs.begin(), FileDeclIDs.end());
2867 llvm::sort(SortedFileDeclIDs, llvm::less_first());
2868
2869 // Join the vectors of DeclIDs from all files.
2870 SmallVector<DeclID, 256> FileGroupedDeclIDs;
2871 for (auto &FileDeclEntry : SortedFileDeclIDs) {
2872 DeclIDInFileInfo &Info = *FileDeclEntry.second;
2873 Info.FirstDeclIndex = FileGroupedDeclIDs.size();
2874 for (auto &LocDeclEntry : Info.DeclIDs)
2875 FileGroupedDeclIDs.push_back(LocDeclEntry.second);
2876 }
2877
2878 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2879 Abbrev->Add(BitCodeAbbrevOp(FILE_SORTED_DECLS));
2880 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
2881 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2882 unsigned AbbrevCode = Stream.EmitAbbrev(std::move(Abbrev));
2883 RecordData::value_type Record[] = {FILE_SORTED_DECLS,
2884 FileGroupedDeclIDs.size()};
2885 Stream.EmitRecordWithBlob(AbbrevCode, Record, bytes(FileGroupedDeclIDs));
2886}
2887
2888void ASTWriter::WriteComments() {
2889 Stream.EnterSubblock(COMMENTS_BLOCK_ID, 3);
2890 auto _ = llvm::make_scope_exit([this] { Stream.ExitBlock(); });
2891 if (!PP->getPreprocessorOpts().WriteCommentListToPCH)
2892 return;
2893 RecordData Record;
2894 for (const auto &FO : Context->Comments.OrderedComments) {
2895 for (const auto &OC : FO.second) {
2896 const RawComment *I = OC.second;
2897 Record.clear();
2898 AddSourceRange(I->getSourceRange(), Record);
2899 Record.push_back(I->getKind());
2900 Record.push_back(I->isTrailingComment());
2901 Record.push_back(I->isAlmostTrailingComment());
2902 Stream.EmitRecord(COMMENTS_RAW_COMMENT, Record);
2903 }
2904 }
2905}
2906
2907//===----------------------------------------------------------------------===//
2908// Global Method Pool and Selector Serialization
2909//===----------------------------------------------------------------------===//
2910
2911namespace {
2912
2913// Trait used for the on-disk hash table used in the method pool.
2914class ASTMethodPoolTrait {
2915 ASTWriter &Writer;
2916
2917public:
2918 using key_type = Selector;
2919 using key_type_ref = key_type;
2920
2921 struct data_type {
2922 SelectorID ID;
2923 ObjCMethodList Instance, Factory;
2924 };
2925 using data_type_ref = const data_type &;
2926
2927 using hash_value_type = unsigned;
2928 using offset_type = unsigned;
2929
2930 explicit ASTMethodPoolTrait(ASTWriter &Writer) : Writer(Writer) {}
2931
2932 static hash_value_type ComputeHash(Selector Sel) {
2933 return serialization::ComputeHash(Sel);
2934 }
2935
2936 std::pair<unsigned, unsigned>
2937 EmitKeyDataLength(raw_ostream& Out, Selector Sel,
2938 data_type_ref Methods) {
2939 using namespace llvm::support;
2940
2941 endian::Writer LE(Out, little);
2942 unsigned KeyLen = 2 + (Sel.getNumArgs()? Sel.getNumArgs() * 4 : 4);
2943 LE.write<uint16_t>(KeyLen);
2944 unsigned DataLen = 4 + 2 + 2; // 2 bytes for each of the method counts
2945 for (const ObjCMethodList *Method = &Methods.Instance; Method;
2946 Method = Method->getNext())
2947 if (Method->getMethod())
2948 DataLen += 4;
2949 for (const ObjCMethodList *Method = &Methods.Factory; Method;
2950 Method = Method->getNext())
2951 if (Method->getMethod())
2952 DataLen += 4;
2953 LE.write<uint16_t>(DataLen);
2954 return std::make_pair(KeyLen, DataLen);
2955 }
2956
2957 void EmitKey(raw_ostream& Out, Selector Sel, unsigned) {
2958 using namespace llvm::support;
2959
2960 endian::Writer LE(Out, little);
2961 uint64_t Start = Out.tell();
2962 assert((Start >> 32) == 0 && "Selector key offset too large")(((Start >> 32) == 0 && "Selector key offset too large"
) ? static_cast<void> (0) : __assert_fail ("(Start >> 32) == 0 && \"Selector key offset too large\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2962, __PRETTY_FUNCTION__))
;
2963 Writer.SetSelectorOffset(Sel, Start);
2964 unsigned N = Sel.getNumArgs();
2965 LE.write<uint16_t>(N);
2966 if (N == 0)
2967 N = 1;
2968 for (unsigned I = 0; I != N; ++I)
2969 LE.write<uint32_t>(
2970 Writer.getIdentifierRef(Sel.getIdentifierInfoForSlot(I)));
2971 }
2972
2973 void EmitData(raw_ostream& Out, key_type_ref,
2974 data_type_ref Methods, unsigned DataLen) {
2975 using namespace llvm::support;
2976
2977 endian::Writer LE(Out, little);
2978 uint64_t Start = Out.tell(); (void)Start;
2979 LE.write<uint32_t>(Methods.ID);
2980 unsigned NumInstanceMethods = 0;
2981 for (const ObjCMethodList *Method = &Methods.Instance; Method;
2982 Method = Method->getNext())
2983 if (Method->getMethod())
2984 ++NumInstanceMethods;
2985
2986 unsigned NumFactoryMethods = 0;
2987 for (const ObjCMethodList *Method = &Methods.Factory; Method;
2988 Method = Method->getNext())
2989 if (Method->getMethod())
2990 ++NumFactoryMethods;
2991
2992 unsigned InstanceBits = Methods.Instance.getBits();
2993 assert(InstanceBits < 4)((InstanceBits < 4) ? static_cast<void> (0) : __assert_fail
("InstanceBits < 4", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 2993, __PRETTY_FUNCTION__))
;
2994 unsigned InstanceHasMoreThanOneDeclBit =
2995 Methods.Instance.hasMoreThanOneDecl();
2996 unsigned FullInstanceBits = (NumInstanceMethods << 3) |
2997 (InstanceHasMoreThanOneDeclBit << 2) |
2998 InstanceBits;
2999 unsigned FactoryBits = Methods.Factory.getBits();
3000 assert(FactoryBits < 4)((FactoryBits < 4) ? static_cast<void> (0) : __assert_fail
("FactoryBits < 4", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3000, __PRETTY_FUNCTION__))
;
3001 unsigned FactoryHasMoreThanOneDeclBit =
3002 Methods.Factory.hasMoreThanOneDecl();
3003 unsigned FullFactoryBits = (NumFactoryMethods << 3) |
3004 (FactoryHasMoreThanOneDeclBit << 2) |
3005 FactoryBits;
3006 LE.write<uint16_t>(FullInstanceBits);
3007 LE.write<uint16_t>(FullFactoryBits);
3008 for (const ObjCMethodList *Method = &Methods.Instance; Method;
3009 Method = Method->getNext())
3010 if (Method->getMethod())
3011 LE.write<uint32_t>(Writer.getDeclID(Method->getMethod()));
3012 for (const ObjCMethodList *Method = &Methods.Factory; Method;
3013 Method = Method->getNext())
3014 if (Method->getMethod())
3015 LE.write<uint32_t>(Writer.getDeclID(Method->getMethod()));
3016
3017 assert(Out.tell() - Start == DataLen && "Data length is wrong")((Out.tell() - Start == DataLen && "Data length is wrong"
) ? static_cast<void> (0) : __assert_fail ("Out.tell() - Start == DataLen && \"Data length is wrong\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3017, __PRETTY_FUNCTION__))
;
3018 }
3019};
3020
3021} // namespace
3022
3023/// Write ObjC data: selectors and the method pool.
3024///
3025/// The method pool contains both instance and factory methods, stored
3026/// in an on-disk hash table indexed by the selector. The hash table also
3027/// contains an empty entry for every other selector known to Sema.
3028void ASTWriter::WriteSelectors(Sema &SemaRef) {
3029 using namespace llvm;
3030
3031 // Do we have to do anything at all?
3032 if (SemaRef.MethodPool.empty() && SelectorIDs.empty())
3033 return;
3034 unsigned NumTableEntries = 0;
3035 // Create and write out the blob that contains selectors and the method pool.
3036 {
3037 llvm::OnDiskChainedHashTableGenerator<ASTMethodPoolTrait> Generator;
3038 ASTMethodPoolTrait Trait(*this);
3039
3040 // Create the on-disk hash table representation. We walk through every
3041 // selector we've seen and look it up in the method pool.
3042 SelectorOffsets.resize(NextSelectorID - FirstSelectorID);
3043 for (auto &SelectorAndID : SelectorIDs) {
3044 Selector S = SelectorAndID.first;
3045 SelectorID ID = SelectorAndID.second;
3046 Sema::GlobalMethodPool::iterator F = SemaRef.MethodPool.find(S);
3047 ASTMethodPoolTrait::data_type Data = {
3048 ID,
3049 ObjCMethodList(),
3050 ObjCMethodList()
3051 };
3052 if (F != SemaRef.MethodPool.end()) {
3053 Data.Instance = F->second.first;
3054 Data.Factory = F->second.second;
3055 }
3056 // Only write this selector if it's not in an existing AST or something
3057 // changed.
3058 if (Chain && ID < FirstSelectorID) {
3059 // Selector already exists. Did it change?
3060 bool changed = false;
3061 for (ObjCMethodList *M = &Data.Instance;
3062 !changed && M && M->getMethod(); M = M->getNext()) {
3063 if (!M->getMethod()->isFromASTFile())
3064 changed = true;
3065 }
3066 for (ObjCMethodList *M = &Data.Factory; !changed && M && M->getMethod();
3067 M = M->getNext()) {
3068 if (!M->getMethod()->isFromASTFile())
3069 changed = true;
3070 }
3071 if (!changed)
3072 continue;
3073 } else if (Data.Instance.getMethod() || Data.Factory.getMethod()) {
3074 // A new method pool entry.
3075 ++NumTableEntries;
3076 }
3077 Generator.insert(S, Data, Trait);
3078 }
3079
3080 // Create the on-disk hash table in a buffer.
3081 SmallString<4096> MethodPool;
3082 uint32_t BucketOffset;
3083 {
3084 using namespace llvm::support;
3085
3086 ASTMethodPoolTrait Trait(*this);
3087 llvm::raw_svector_ostream Out(MethodPool);
3088 // Make sure that no bucket is at offset 0
3089 endian::write<uint32_t>(Out, 0, little);
3090 BucketOffset = Generator.Emit(Out, Trait);
3091 }
3092
3093 // Create a blob abbreviation
3094 auto Abbrev = std::make_shared<BitCodeAbbrev>();
3095 Abbrev->Add(BitCodeAbbrevOp(METHOD_POOL));
3096 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
3097 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
3098 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
3099 unsigned MethodPoolAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
3100
3101 // Write the method pool
3102 {
3103 RecordData::value_type Record[] = {METHOD_POOL, BucketOffset,
3104 NumTableEntries};
3105 Stream.EmitRecordWithBlob(MethodPoolAbbrev, Record, MethodPool);
3106 }
3107
3108 // Create a blob abbreviation for the selector table offsets.
3109 Abbrev = std::make_shared<BitCodeAbbrev>();
3110 Abbrev->Add(BitCodeAbbrevOp(SELECTOR_OFFSETS));
3111 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // size
3112 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // first ID
3113 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
3114 unsigned SelectorOffsetAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
3115
3116 // Write the selector offsets table.
3117 {
3118 RecordData::value_type Record[] = {
3119 SELECTOR_OFFSETS, SelectorOffsets.size(),
3120 FirstSelectorID - NUM_PREDEF_SELECTOR_IDS};
3121 Stream.EmitRecordWithBlob(SelectorOffsetAbbrev, Record,
3122 bytes(SelectorOffsets));
3123 }
3124 }
3125}
3126
3127/// Write the selectors referenced in @selector expression into AST file.
3128void ASTWriter::WriteReferencedSelectorsPool(Sema &SemaRef) {
3129 using namespace llvm;
3130
3131 if (SemaRef.ReferencedSelectors.empty())
3132 return;
3133
3134 RecordData Record;
3135 ASTRecordWriter Writer(*this, Record);
3136
3137 // Note: this writes out all references even for a dependent AST. But it is
3138 // very tricky to fix, and given that @selector shouldn't really appear in
3139 // headers, probably not worth it. It's not a correctness issue.
3140 for (auto &SelectorAndLocation : SemaRef.ReferencedSelectors) {
3141 Selector Sel = SelectorAndLocation.first;
3142 SourceLocation Loc = SelectorAndLocation.second;
3143 Writer.AddSelectorRef(Sel);
3144 Writer.AddSourceLocation(Loc);
3145 }
3146 Writer.Emit(REFERENCED_SELECTOR_POOL);
3147}
3148
3149//===----------------------------------------------------------------------===//
3150// Identifier Table Serialization
3151//===----------------------------------------------------------------------===//
3152
3153/// Determine the declaration that should be put into the name lookup table to
3154/// represent the given declaration in this module. This is usually D itself,
3155/// but if D was imported and merged into a local declaration, we want the most
3156/// recent local declaration instead. The chosen declaration will be the most
3157/// recent declaration in any module that imports this one.
3158static NamedDecl *getDeclForLocalLookup(const LangOptions &LangOpts,
3159 NamedDecl *D) {
3160 if (!LangOpts.Modules || !D->isFromASTFile())
3161 return D;
3162
3163 if (Decl *Redecl = D->getPreviousDecl()) {
3164 // For Redeclarable decls, a prior declaration might be local.
3165 for (; Redecl; Redecl = Redecl->getPreviousDecl()) {
3166 // If we find a local decl, we're done.
3167 if (!Redecl->isFromASTFile()) {
3168 // Exception: in very rare cases (for injected-class-names), not all
3169 // redeclarations are in the same semantic context. Skip ones in a
3170 // different context. They don't go in this lookup table at all.
3171 if (!Redecl->getDeclContext()->getRedeclContext()->Equals(
3172 D->getDeclContext()->getRedeclContext()))
3173 continue;
3174 return cast<NamedDecl>(Redecl);
3175 }
3176
3177 // If we find a decl from a (chained-)PCH stop since we won't find a
3178 // local one.
3179 if (Redecl->getOwningModuleID() == 0)
3180 break;
3181 }
3182 } else if (Decl *First = D->getCanonicalDecl()) {
3183 // For Mergeable decls, the first decl might be local.
3184 if (!First->isFromASTFile())
3185 return cast<NamedDecl>(First);
3186 }
3187
3188 // All declarations are imported. Our most recent declaration will also be
3189 // the most recent one in anyone who imports us.
3190 return D;
3191}
3192
3193namespace {
3194
3195class ASTIdentifierTableTrait {
3196 ASTWriter &Writer;
3197 Preprocessor &PP;
3198 IdentifierResolver &IdResolver;
3199 bool IsModule;
3200 bool NeedDecls;
3201 ASTWriter::RecordData *InterestingIdentifierOffsets;
3202
3203 /// Determines whether this is an "interesting" identifier that needs a
3204 /// full IdentifierInfo structure written into the hash table. Notably, this
3205 /// doesn't check whether the name has macros defined; use PublicMacroIterator
3206 /// to check that.
3207 bool isInterestingIdentifier(const IdentifierInfo *II, uint64_t MacroOffset) {
3208 if (MacroOffset ||
3209 II->isPoisoned() ||
3210 (IsModule ? II->hasRevertedBuiltin() : II->getObjCOrBuiltinID()) ||
3211 II->hasRevertedTokenIDToIdentifier() ||
3212 (NeedDecls && II->getFETokenInfo()))
3213 return true;
3214
3215 return false;
3216 }
3217
3218public:
3219 using key_type = IdentifierInfo *;
3220 using key_type_ref = key_type;
3221
3222 using data_type = IdentID;
3223 using data_type_ref = data_type;
3224
3225 using hash_value_type = unsigned;
3226 using offset_type = unsigned;
3227
3228 ASTIdentifierTableTrait(ASTWriter &Writer, Preprocessor &PP,
3229 IdentifierResolver &IdResolver, bool IsModule,
3230 ASTWriter::RecordData *InterestingIdentifierOffsets)
3231 : Writer(Writer), PP(PP), IdResolver(IdResolver), IsModule(IsModule),
3232 NeedDecls(!IsModule || !Writer.getLangOpts().CPlusPlus),
3233 InterestingIdentifierOffsets(InterestingIdentifierOffsets) {}
3234
3235 bool needDecls() const { return NeedDecls; }
3236
3237 static hash_value_type ComputeHash(const IdentifierInfo* II) {
3238 return llvm::djbHash(II->getName());
3239 }
3240
3241 bool isInterestingIdentifier(const IdentifierInfo *II) {
3242 auto MacroOffset = Writer.getMacroDirectivesOffset(II);
3243 return isInterestingIdentifier(II, MacroOffset);
3244 }
3245
3246 bool isInterestingNonMacroIdentifier(const IdentifierInfo *II) {
3247 return isInterestingIdentifier(II, 0);
3248 }
3249
3250 std::pair<unsigned, unsigned>
3251 EmitKeyDataLength(raw_ostream& Out, IdentifierInfo* II, IdentID ID) {
3252 unsigned KeyLen = II->getLength() + 1;
3253 unsigned DataLen = 4; // 4 bytes for the persistent ID << 1
3254 auto MacroOffset = Writer.getMacroDirectivesOffset(II);
3255 if (isInterestingIdentifier(II, MacroOffset)) {
3256 DataLen += 2; // 2 bytes for builtin ID
3257 DataLen += 2; // 2 bytes for flags
3258 if (MacroOffset)
3259 DataLen += 4; // MacroDirectives offset.
3260
3261 if (NeedDecls) {
3262 for (IdentifierResolver::iterator D = IdResolver.begin(II),
3263 DEnd = IdResolver.end();
3264 D != DEnd; ++D)
3265 DataLen += 4;
3266 }
3267 }
3268
3269 using namespace llvm::support;
3270
3271 endian::Writer LE(Out, little);
3272
3273 assert((uint16_t)DataLen == DataLen && (uint16_t)KeyLen == KeyLen)(((uint16_t)DataLen == DataLen && (uint16_t)KeyLen ==
KeyLen) ? static_cast<void> (0) : __assert_fail ("(uint16_t)DataLen == DataLen && (uint16_t)KeyLen == KeyLen"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3273, __PRETTY_FUNCTION__))
;
3274 LE.write<uint16_t>(DataLen);
3275 // We emit the key length after the data length so that every
3276 // string is preceded by a 16-bit length. This matches the PTH
3277 // format for storing identifiers.
3278 LE.write<uint16_t>(KeyLen);
3279 return std::make_pair(KeyLen, DataLen);
3280 }
3281
3282 void EmitKey(raw_ostream& Out, const IdentifierInfo* II,
3283 unsigned KeyLen) {
3284 // Record the location of the key data. This is used when generating
3285 // the mapping from persistent IDs to strings.
3286 Writer.SetIdentifierOffset(II, Out.tell());
3287
3288 // Emit the offset of the key/data length information to the interesting
3289 // identifiers table if necessary.
3290 if (InterestingIdentifierOffsets && isInterestingIdentifier(II))
3291 InterestingIdentifierOffsets->push_back(Out.tell() - 4);
3292
3293 Out.write(II->getNameStart(), KeyLen);
3294 }
3295
3296 void EmitData(raw_ostream& Out, IdentifierInfo* II,
3297 IdentID ID, unsigned) {
3298 using namespace llvm::support;
3299
3300 endian::Writer LE(Out, little);
3301
3302 auto MacroOffset = Writer.getMacroDirectivesOffset(II);
3303 if (!isInterestingIdentifier(II, MacroOffset)) {
3304 LE.write<uint32_t>(ID << 1);
3305 return;
3306 }
3307
3308 LE.write<uint32_t>((ID << 1) | 0x01);
3309 uint32_t Bits = (uint32_t)II->getObjCOrBuiltinID();
3310 assert((Bits & 0xffff) == Bits && "ObjCOrBuiltinID too big for ASTReader.")(((Bits & 0xffff) == Bits && "ObjCOrBuiltinID too big for ASTReader."
) ? static_cast<void> (0) : __assert_fail ("(Bits & 0xffff) == Bits && \"ObjCOrBuiltinID too big for ASTReader.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3310, __PRETTY_FUNCTION__))
;
3311 LE.write<uint16_t>(Bits);
3312 Bits = 0;
3313 bool HadMacroDefinition = MacroOffset != 0;
3314 Bits = (Bits << 1) | unsigned(HadMacroDefinition);
3315 Bits = (Bits << 1) | unsigned(II->isExtensionToken());
3316 Bits = (Bits << 1) | unsigned(II->isPoisoned());
3317 Bits = (Bits << 1) | unsigned(II->hasRevertedBuiltin());
3318 Bits = (Bits << 1) | unsigned(II->hasRevertedTokenIDToIdentifier());
3319 Bits = (Bits << 1) | unsigned(II->isCPlusPlusOperatorKeyword());
3320 LE.write<uint16_t>(Bits);
3321
3322 if (HadMacroDefinition)
3323 LE.write<uint32_t>(MacroOffset);
3324
3325 if (NeedDecls) {
3326 // Emit the declaration IDs in reverse order, because the
3327 // IdentifierResolver provides the declarations as they would be
3328 // visible (e.g., the function "stat" would come before the struct
3329 // "stat"), but the ASTReader adds declarations to the end of the list
3330 // (so we need to see the struct "stat" before the function "stat").
3331 // Only emit declarations that aren't from a chained PCH, though.
3332 SmallVector<NamedDecl *, 16> Decls(IdResolver.begin(II),
3333 IdResolver.end());
3334 for (SmallVectorImpl<NamedDecl *>::reverse_iterator D = Decls.rbegin(),
3335 DEnd = Decls.rend();
3336 D != DEnd; ++D)
3337 LE.write<uint32_t>(
3338 Writer.getDeclID(getDeclForLocalLookup(PP.getLangOpts(), *D)));
3339 }
3340 }
3341};
3342
3343} // namespace
3344
3345/// Write the identifier table into the AST file.
3346///
3347/// The identifier table consists of a blob containing string data
3348/// (the actual identifiers themselves) and a separate "offsets" index
3349/// that maps identifier IDs to locations within the blob.
3350void ASTWriter::WriteIdentifierTable(Preprocessor &PP,
3351 IdentifierResolver &IdResolver,
3352 bool IsModule) {
3353 using namespace llvm;
3354
3355 RecordData InterestingIdents;
3356
3357 // Create and write out the blob that contains the identifier
3358 // strings.
3359 {
3360 llvm::OnDiskChainedHashTableGenerator<ASTIdentifierTableTrait> Generator;
3361 ASTIdentifierTableTrait Trait(
3362 *this, PP, IdResolver, IsModule,
3363 (getLangOpts().CPlusPlus && IsModule) ? &InterestingIdents : nullptr);
3364
3365 // Look for any identifiers that were named while processing the
3366 // headers, but are otherwise not needed. We add these to the hash
3367 // table to enable checking of the predefines buffer in the case
3368 // where the user adds new macro definitions when building the AST
3369 // file.
3370 SmallVector<const IdentifierInfo *, 128> IIs;
3371 for (const auto &ID : PP.getIdentifierTable())
3372 IIs.push_back(ID.second);
3373 // Sort the identifiers lexicographically before getting them references so
3374 // that their order is stable.
3375 llvm::sort(IIs, llvm::deref<std::less<>>());
3376 for (const IdentifierInfo *II : IIs)
3377 if (Trait.isInterestingNonMacroIdentifier(II))
3378 getIdentifierRef(II);
3379
3380 // Create the on-disk hash table representation. We only store offsets
3381 // for identifiers that appear here for the first time.
3382 IdentifierOffsets.resize(NextIdentID - FirstIdentID);
3383 for (auto IdentIDPair : IdentifierIDs) {
3384 auto *II = const_cast<IdentifierInfo *>(IdentIDPair.first);
3385 IdentID ID = IdentIDPair.second;
3386 assert(II && "NULL identifier in identifier table")((II && "NULL identifier in identifier table") ? static_cast
<void> (0) : __assert_fail ("II && \"NULL identifier in identifier table\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3386, __PRETTY_FUNCTION__))
;
3387 // Write out identifiers if either the ID is local or the identifier has
3388 // changed since it was loaded.
3389 if (ID >= FirstIdentID || !Chain || !II->isFromAST()
3390 || II->hasChangedSinceDeserialization() ||
3391 (Trait.needDecls() &&
3392 II->hasFETokenInfoChangedSinceDeserialization()))
3393 Generator.insert(II, ID, Trait);
3394 }
3395
3396 // Create the on-disk hash table in a buffer.
3397 SmallString<4096> IdentifierTable;
3398 uint32_t BucketOffset;
3399 {
3400 using namespace llvm::support;
3401
3402 llvm::raw_svector_ostream Out(IdentifierTable);
3403 // Make sure that no bucket is at offset 0
3404 endian::write<uint32_t>(Out, 0, little);
3405 BucketOffset = Generator.Emit(Out, Trait);
3406 }
3407
3408 // Create a blob abbreviation
3409 auto Abbrev = std::make_shared<BitCodeAbbrev>();
3410 Abbrev->Add(BitCodeAbbrevOp(IDENTIFIER_TABLE));
3411 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
3412 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
3413 unsigned IDTableAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
3414
3415 // Write the identifier table
3416 RecordData::value_type Record[] = {IDENTIFIER_TABLE, BucketOffset};
3417 Stream.EmitRecordWithBlob(IDTableAbbrev, Record, IdentifierTable);
3418 }
3419
3420 // Write the offsets table for identifier IDs.
3421 auto Abbrev = std::make_shared<BitCodeAbbrev>();
3422 Abbrev->Add(BitCodeAbbrevOp(IDENTIFIER_OFFSET));
3423 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of identifiers
3424 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // first ID
3425 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
3426 unsigned IdentifierOffsetAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
3427
3428#ifndef NDEBUG
3429 for (unsigned I = 0, N = IdentifierOffsets.size(); I != N; ++I)
3430 assert(IdentifierOffsets[I] && "Missing identifier offset?")((IdentifierOffsets[I] && "Missing identifier offset?"
) ? static_cast<void> (0) : __assert_fail ("IdentifierOffsets[I] && \"Missing identifier offset?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3430, __PRETTY_FUNCTION__))
;
3431#endif
3432
3433 RecordData::value_type Record[] = {IDENTIFIER_OFFSET,
3434 IdentifierOffsets.size(),
3435 FirstIdentID - NUM_PREDEF_IDENT_IDS};
3436 Stream.EmitRecordWithBlob(IdentifierOffsetAbbrev, Record,
3437 bytes(IdentifierOffsets));
3438
3439 // In C++, write the list of interesting identifiers (those that are
3440 // defined as macros, poisoned, or similar unusual things).
3441 if (!InterestingIdents.empty())
3442 Stream.EmitRecord(INTERESTING_IDENTIFIERS, InterestingIdents);
3443}
3444
3445//===----------------------------------------------------------------------===//
3446// DeclContext's Name Lookup Table Serialization
3447//===----------------------------------------------------------------------===//
3448
3449namespace {
3450
3451// Trait used for the on-disk hash table used in the method pool.
3452class ASTDeclContextNameLookupTrait {
3453 ASTWriter &Writer;
3454 llvm::SmallVector<DeclID, 64> DeclIDs;
3455
3456public:
3457 using key_type = DeclarationNameKey;
3458 using key_type_ref = key_type;
3459
3460 /// A start and end index into DeclIDs, representing a sequence of decls.
3461 using data_type = std::pair<unsigned, unsigned>;
3462 using data_type_ref = const data_type &;
3463
3464 using hash_value_type = unsigned;
3465 using offset_type = unsigned;
3466
3467 explicit ASTDeclContextNameLookupTrait(ASTWriter &Writer) : Writer(Writer) {}
3468
3469 template<typename Coll>
3470 data_type getData(const Coll &Decls) {
3471 unsigned Start = DeclIDs.size();
3472 for (NamedDecl *D : Decls) {
3473 DeclIDs.push_back(
3474 Writer.GetDeclRef(getDeclForLocalLookup(Writer.getLangOpts(), D)));
3475 }
3476 return std::make_pair(Start, DeclIDs.size());
3477 }
3478
3479 data_type ImportData(const reader::ASTDeclContextNameLookupTrait::data_type &FromReader) {
3480 unsigned Start = DeclIDs.size();
3481 for (auto ID : FromReader)
3482 DeclIDs.push_back(ID);
3483 return std::make_pair(Start, DeclIDs.size());
3484 }
3485
3486 static bool EqualKey(key_type_ref a, key_type_ref b) {
3487 return a == b;
3488 }
3489
3490 hash_value_type ComputeHash(DeclarationNameKey Name) {
3491 return Name.getHash();
3492 }
3493
3494 void EmitFileRef(raw_ostream &Out, ModuleFile *F) const {
3495 assert(Writer.hasChain() &&((Writer.hasChain() && "have reference to loaded module file but no chain?"
) ? static_cast<void> (0) : __assert_fail ("Writer.hasChain() && \"have reference to loaded module file but no chain?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3496, __PRETTY_FUNCTION__))
3496 "have reference to loaded module file but no chain?")((Writer.hasChain() && "have reference to loaded module file but no chain?"
) ? static_cast<void> (0) : __assert_fail ("Writer.hasChain() && \"have reference to loaded module file but no chain?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3496, __PRETTY_FUNCTION__))
;
3497
3498 using namespace llvm::support;
3499
3500 endian::write<uint32_t>(Out, Writer.getChain()->getModuleFileID(F), little);
3501 }
3502
3503 std::pair<unsigned, unsigned> EmitKeyDataLength(raw_ostream &Out,
3504 DeclarationNameKey Name,
3505 data_type_ref Lookup) {
3506 using namespace llvm::support;
3507
3508 endian::Writer LE(Out, little);
3509 unsigned KeyLen = 1;
3510 switch (Name.getKind()) {
3511 case DeclarationName::Identifier:
3512 case DeclarationName::ObjCZeroArgSelector:
3513 case DeclarationName::ObjCOneArgSelector:
3514 case DeclarationName::ObjCMultiArgSelector:
3515 case DeclarationName::CXXLiteralOperatorName:
3516 case DeclarationName::CXXDeductionGuideName:
3517 KeyLen += 4;
3518 break;
3519 case DeclarationName::CXXOperatorName:
3520 KeyLen += 1;
3521 break;
3522 case DeclarationName::CXXConstructorName:
3523 case DeclarationName::CXXDestructorName:
3524 case DeclarationName::CXXConversionFunctionName:
3525 case DeclarationName::CXXUsingDirective:
3526 break;
3527 }
3528 LE.write<uint16_t>(KeyLen);
3529
3530 // 4 bytes for each DeclID.
3531 unsigned DataLen = 4 * (Lookup.second - Lookup.first);
3532 assert(uint16_t(DataLen) == DataLen &&((uint16_t(DataLen) == DataLen && "too many decls for serialized lookup result"
) ? static_cast<void> (0) : __assert_fail ("uint16_t(DataLen) == DataLen && \"too many decls for serialized lookup result\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3533, __PRETTY_FUNCTION__))
3533 "too many decls for serialized lookup result")((uint16_t(DataLen) == DataLen && "too many decls for serialized lookup result"
) ? static_cast<void> (0) : __assert_fail ("uint16_t(DataLen) == DataLen && \"too many decls for serialized lookup result\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3533, __PRETTY_FUNCTION__))
;
3534 LE.write<uint16_t>(DataLen);
3535
3536 return std::make_pair(KeyLen, DataLen);
3537 }
3538
3539 void EmitKey(raw_ostream &Out, DeclarationNameKey Name, unsigned) {
3540 using namespace llvm::support;
3541
3542 endian::Writer LE(Out, little);
3543 LE.write<uint8_t>(Name.getKind());
3544 switch (Name.getKind()) {
3545 case DeclarationName::Identifier:
3546 case DeclarationName::CXXLiteralOperatorName:
3547 case DeclarationName::CXXDeductionGuideName:
3548 LE.write<uint32_t>(Writer.getIdentifierRef(Name.getIdentifier()));
3549 return;
3550 case DeclarationName::ObjCZeroArgSelector:
3551 case DeclarationName::ObjCOneArgSelector:
3552 case DeclarationName::ObjCMultiArgSelector:
3553 LE.write<uint32_t>(Writer.getSelectorRef(Name.getSelector()));
3554 return;
3555 case DeclarationName::CXXOperatorName:
3556 assert(Name.getOperatorKind() < NUM_OVERLOADED_OPERATORS &&((Name.getOperatorKind() < NUM_OVERLOADED_OPERATORS &&
"Invalid operator?") ? static_cast<void> (0) : __assert_fail
("Name.getOperatorKind() < NUM_OVERLOADED_OPERATORS && \"Invalid operator?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3557, __PRETTY_FUNCTION__))
3557 "Invalid operator?")((Name.getOperatorKind() < NUM_OVERLOADED_OPERATORS &&
"Invalid operator?") ? static_cast<void> (0) : __assert_fail
("Name.getOperatorKind() < NUM_OVERLOADED_OPERATORS && \"Invalid operator?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3557, __PRETTY_FUNCTION__))
;
3558 LE.write<uint8_t>(Name.getOperatorKind());
3559 return;
3560 case DeclarationName::CXXConstructorName:
3561 case DeclarationName::CXXDestructorName:
3562 case DeclarationName::CXXConversionFunctionName:
3563 case DeclarationName::CXXUsingDirective:
3564 return;
3565 }
3566
3567 llvm_unreachable("Invalid name kind?")::llvm::llvm_unreachable_internal("Invalid name kind?", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3567)
;
3568 }
3569
3570 void EmitData(raw_ostream &Out, key_type_ref, data_type Lookup,
3571 unsigned DataLen) {
3572 using namespace llvm::support;
3573
3574 endian::Writer LE(Out, little);
3575 uint64_t Start = Out.tell(); (void)Start;
3576 for (unsigned I = Lookup.first, N = Lookup.second; I != N; ++I)
3577 LE.write<uint32_t>(DeclIDs[I]);
3578 assert(Out.tell() - Start == DataLen && "Data length is wrong")((Out.tell() - Start == DataLen && "Data length is wrong"
) ? static_cast<void> (0) : __assert_fail ("Out.tell() - Start == DataLen && \"Data length is wrong\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3578, __PRETTY_FUNCTION__))
;
3579 }
3580};
3581
3582} // namespace
3583
3584bool ASTWriter::isLookupResultExternal(StoredDeclsList &Result,
3585 DeclContext *DC) {
3586 return Result.hasExternalDecls() &&
3587 DC->hasNeedToReconcileExternalVisibleStorage();
3588}
3589
3590bool ASTWriter::isLookupResultEntirelyExternal(StoredDeclsList &Result,
3591 DeclContext *DC) {
3592 for (auto *D : Result.getLookupResult())
3593 if (!getDeclForLocalLookup(getLangOpts(), D)->isFromASTFile())
3594 return false;
3595
3596 return true;
3597}
3598
3599void
3600ASTWriter::GenerateNameLookupTable(const DeclContext *ConstDC,
3601 llvm::SmallVectorImpl<char> &LookupTable) {
3602 assert(!ConstDC->hasLazyLocalLexicalLookups() &&((!ConstDC->hasLazyLocalLexicalLookups() && !ConstDC
->hasLazyExternalLexicalLookups() && "must call buildLookups first"
) ? static_cast<void> (0) : __assert_fail ("!ConstDC->hasLazyLocalLexicalLookups() && !ConstDC->hasLazyExternalLexicalLookups() && \"must call buildLookups first\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3604, __PRETTY_FUNCTION__))
3603 !ConstDC->hasLazyExternalLexicalLookups() &&((!ConstDC->hasLazyLocalLexicalLookups() && !ConstDC
->hasLazyExternalLexicalLookups() && "must call buildLookups first"
) ? static_cast<void> (0) : __assert_fail ("!ConstDC->hasLazyLocalLexicalLookups() && !ConstDC->hasLazyExternalLexicalLookups() && \"must call buildLookups first\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3604, __PRETTY_FUNCTION__))
3604 "must call buildLookups first")((!ConstDC->hasLazyLocalLexicalLookups() && !ConstDC
->hasLazyExternalLexicalLookups() && "must call buildLookups first"
) ? static_cast<void> (0) : __assert_fail ("!ConstDC->hasLazyLocalLexicalLookups() && !ConstDC->hasLazyExternalLexicalLookups() && \"must call buildLookups first\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3604, __PRETTY_FUNCTION__))
;
3605
3606 // FIXME: We need to build the lookups table, which is logically const.
3607 auto *DC = const_cast<DeclContext*>(ConstDC);
3608 assert(DC == DC->getPrimaryContext() && "only primary DC has lookup table")((DC == DC->getPrimaryContext() && "only primary DC has lookup table"
) ? static_cast<void> (0) : __assert_fail ("DC == DC->getPrimaryContext() && \"only primary DC has lookup table\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3608, __PRETTY_FUNCTION__))
;
3609
3610 // Create the on-disk hash table representation.
3611 MultiOnDiskHashTableGenerator<reader::ASTDeclContextNameLookupTrait,
3612 ASTDeclContextNameLookupTrait> Generator;
3613 ASTDeclContextNameLookupTrait Trait(*this);
3614
3615 // The first step is to collect the declaration names which we need to
3616 // serialize into the name lookup table, and to collect them in a stable
3617 // order.
3618 SmallVector<DeclarationName, 16> Names;
3619
3620 // We also build up small sets of the constructor and conversion function
3621 // names which are visible.
3622 llvm::SmallSet<DeclarationName, 8> ConstructorNameSet, ConversionNameSet;
3623
3624 for (auto &Lookup : *DC->buildLookup()) {
3625 auto &Name = Lookup.first;
3626 auto &Result = Lookup.second;
3627
3628 // If there are no local declarations in our lookup result, we
3629 // don't need to write an entry for the name at all. If we can't
3630 // write out a lookup set without performing more deserialization,
3631 // just skip this entry.
3632 if (isLookupResultExternal(Result, DC) &&
3633 isLookupResultEntirelyExternal(Result, DC))
3634 continue;
3635
3636 // We also skip empty results. If any of the results could be external and
3637 // the currently available results are empty, then all of the results are
3638 // external and we skip it above. So the only way we get here with an empty
3639 // results is when no results could have been external *and* we have
3640 // external results.
3641 //
3642 // FIXME: While we might want to start emitting on-disk entries for negative
3643 // lookups into a decl context as an optimization, today we *have* to skip
3644 // them because there are names with empty lookup results in decl contexts
3645 // which we can't emit in any stable ordering: we lookup constructors and
3646 // conversion functions in the enclosing namespace scope creating empty
3647 // results for them. This in almost certainly a bug in Clang's name lookup,
3648 // but that is likely to be hard or impossible to fix and so we tolerate it
3649 // here by omitting lookups with empty results.
3650 if (Lookup.second.getLookupResult().empty())
3651 continue;
3652
3653 switch (Lookup.first.getNameKind()) {
3654 default:
3655 Names.push_back(Lookup.first);
3656 break;
3657
3658 case DeclarationName::CXXConstructorName:
3659 assert(isa<CXXRecordDecl>(DC) &&((isa<CXXRecordDecl>(DC) && "Cannot have a constructor name outside of a class!"
) ? static_cast<void> (0) : __assert_fail ("isa<CXXRecordDecl>(DC) && \"Cannot have a constructor name outside of a class!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3660, __PRETTY_FUNCTION__))
3660 "Cannot have a constructor name outside of a class!")((isa<CXXRecordDecl>(DC) && "Cannot have a constructor name outside of a class!"
) ? static_cast<void> (0) : __assert_fail ("isa<CXXRecordDecl>(DC) && \"Cannot have a constructor name outside of a class!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3660, __PRETTY_FUNCTION__))
;
3661 ConstructorNameSet.insert(Name);
3662 break;
3663
3664 case DeclarationName::CXXConversionFunctionName:
3665 assert(isa<CXXRecordDecl>(DC) &&((isa<CXXRecordDecl>(DC) && "Cannot have a conversion function name outside of a class!"
) ? static_cast<void> (0) : __assert_fail ("isa<CXXRecordDecl>(DC) && \"Cannot have a conversion function name outside of a class!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3666, __PRETTY_FUNCTION__))
3666 "Cannot have a conversion function name outside of a class!")((isa<CXXRecordDecl>(DC) && "Cannot have a conversion function name outside of a class!"
) ? static_cast<void> (0) : __assert_fail ("isa<CXXRecordDecl>(DC) && \"Cannot have a conversion function name outside of a class!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3666, __PRETTY_FUNCTION__))
;
3667 ConversionNameSet.insert(Name);
3668 break;
3669 }
3670 }
3671
3672 // Sort the names into a stable order.
3673 llvm::sort(Names);
3674
3675 if (auto *D = dyn_cast<CXXRecordDecl>(DC)) {
3676 // We need to establish an ordering of constructor and conversion function
3677 // names, and they don't have an intrinsic ordering.
3678
3679 // First we try the easy case by forming the current context's constructor
3680 // name and adding that name first. This is a very useful optimization to
3681 // avoid walking the lexical declarations in many cases, and it also
3682 // handles the only case where a constructor name can come from some other
3683 // lexical context -- when that name is an implicit constructor merged from
3684 // another declaration in the redecl chain. Any non-implicit constructor or
3685 // conversion function which doesn't occur in all the lexical contexts
3686 // would be an ODR violation.
3687 auto ImplicitCtorName = Context->DeclarationNames.getCXXConstructorName(
3688 Context->getCanonicalType(Context->getRecordType(D)));
3689 if (ConstructorNameSet.erase(ImplicitCtorName))
3690 Names.push_back(ImplicitCtorName);
3691
3692 // If we still have constructors or conversion functions, we walk all the
3693 // names in the decl and add the constructors and conversion functions
3694 // which are visible in the order they lexically occur within the context.
3695 if (!ConstructorNameSet.empty() || !ConversionNameSet.empty())
3696 for (Decl *ChildD : cast<CXXRecordDecl>(DC)->decls())
3697 if (auto *ChildND = dyn_cast<NamedDecl>(ChildD)) {
3698 auto Name = ChildND->getDeclName();
3699 switch (Name.getNameKind()) {
3700 default:
3701 continue;
3702
3703 case DeclarationName::CXXConstructorName:
3704 if (ConstructorNameSet.erase(Name))
3705 Names.push_back(Name);
3706 break;
3707
3708 case DeclarationName::CXXConversionFunctionName:
3709 if (ConversionNameSet.erase(Name))
3710 Names.push_back(Name);
3711 break;
3712 }
3713
3714 if (ConstructorNameSet.empty() && ConversionNameSet.empty())
3715 break;
3716 }
3717
3718 assert(ConstructorNameSet.empty() && "Failed to find all of the visible "((ConstructorNameSet.empty() && "Failed to find all of the visible "
"constructors by walking all the " "lexical members of the context."
) ? static_cast<void> (0) : __assert_fail ("ConstructorNameSet.empty() && \"Failed to find all of the visible \" \"constructors by walking all the \" \"lexical members of the context.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3720, __PRETTY_FUNCTION__))
3719 "constructors by walking all the "((ConstructorNameSet.empty() && "Failed to find all of the visible "
"constructors by walking all the " "lexical members of the context."
) ? static_cast<void> (0) : __assert_fail ("ConstructorNameSet.empty() && \"Failed to find all of the visible \" \"constructors by walking all the \" \"lexical members of the context.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3720, __PRETTY_FUNCTION__))
3720 "lexical members of the context.")((ConstructorNameSet.empty() && "Failed to find all of the visible "
"constructors by walking all the " "lexical members of the context."
) ? static_cast<void> (0) : __assert_fail ("ConstructorNameSet.empty() && \"Failed to find all of the visible \" \"constructors by walking all the \" \"lexical members of the context.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3720, __PRETTY_FUNCTION__))
;
3721 assert(ConversionNameSet.empty() && "Failed to find all of the visible "((ConversionNameSet.empty() && "Failed to find all of the visible "
"conversion functions by walking all " "the lexical members of the context."
) ? static_cast<void> (0) : __assert_fail ("ConversionNameSet.empty() && \"Failed to find all of the visible \" \"conversion functions by walking all \" \"the lexical members of the context.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3723, __PRETTY_FUNCTION__))
3722 "conversion functions by walking all "((ConversionNameSet.empty() && "Failed to find all of the visible "
"conversion functions by walking all " "the lexical members of the context."
) ? static_cast<void> (0) : __assert_fail ("ConversionNameSet.empty() && \"Failed to find all of the visible \" \"conversion functions by walking all \" \"the lexical members of the context.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3723, __PRETTY_FUNCTION__))
3723 "the lexical members of the context.")((ConversionNameSet.empty() && "Failed to find all of the visible "
"conversion functions by walking all " "the lexical members of the context."
) ? static_cast<void> (0) : __assert_fail ("ConversionNameSet.empty() && \"Failed to find all of the visible \" \"conversion functions by walking all \" \"the lexical members of the context.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3723, __PRETTY_FUNCTION__))
;
3724 }
3725
3726 // Next we need to do a lookup with each name into this decl context to fully
3727 // populate any results from external sources. We don't actually use the
3728 // results of these lookups because we only want to use the results after all
3729 // results have been loaded and the pointers into them will be stable.
3730 for (auto &Name : Names)
3731 DC->lookup(Name);
3732
3733 // Now we need to insert the results for each name into the hash table. For
3734 // constructor names and conversion function names, we actually need to merge
3735 // all of the results for them into one list of results each and insert
3736 // those.
3737 SmallVector<NamedDecl *, 8> ConstructorDecls;
3738 SmallVector<NamedDecl *, 8> ConversionDecls;
3739
3740 // Now loop over the names, either inserting them or appending for the two
3741 // special cases.
3742 for (auto &Name : Names) {
3743 DeclContext::lookup_result Result = DC->noload_lookup(Name);
3744
3745 switch (Name.getNameKind()) {
3746 default:
3747 Generator.insert(Name, Trait.getData(Result), Trait);
3748 break;
3749
3750 case DeclarationName::CXXConstructorName:
3751 ConstructorDecls.append(Result.begin(), Result.end());
3752 break;
3753
3754 case DeclarationName::CXXConversionFunctionName:
3755 ConversionDecls.append(Result.begin(), Result.end());
3756 break;
3757 }
3758 }
3759
3760 // Handle our two special cases if we ended up having any. We arbitrarily use
3761 // the first declaration's name here because the name itself isn't part of
3762 // the key, only the kind of name is used.
3763 if (!ConstructorDecls.empty())
3764 Generator.insert(ConstructorDecls.front()->getDeclName(),
3765 Trait.getData(ConstructorDecls), Trait);
3766 if (!ConversionDecls.empty())
3767 Generator.insert(ConversionDecls.front()->getDeclName(),
3768 Trait.getData(ConversionDecls), Trait);
3769
3770 // Create the on-disk hash table. Also emit the existing imported and
3771 // merged table if there is one.
3772 auto *Lookups = Chain ? Chain->getLoadedLookupTables(DC) : nullptr;
3773 Generator.emit(LookupTable, Trait, Lookups ? &Lookups->Table : nullptr);
3774}
3775
3776/// Write the block containing all of the declaration IDs
3777/// visible from the given DeclContext.
3778///
3779/// \returns the offset of the DECL_CONTEXT_VISIBLE block within the
3780/// bitstream, or 0 if no block was written.
3781uint64_t ASTWriter::WriteDeclContextVisibleBlock(ASTContext &Context,
3782 DeclContext *DC) {
3783 // If we imported a key declaration of this namespace, write the visible
3784 // lookup results as an update record for it rather than including them
3785 // on this declaration. We will only look at key declarations on reload.
3786 if (isa<NamespaceDecl>(DC) && Chain &&
3787 Chain->getKeyDeclaration(cast<Decl>(DC))->isFromASTFile()) {
3788 // Only do this once, for the first local declaration of the namespace.
3789 for (auto *Prev = cast<NamespaceDecl>(DC)->getPreviousDecl(); Prev;
3790 Prev = Prev->getPreviousDecl())
3791 if (!Prev->isFromASTFile())
3792 return 0;
3793
3794 // Note that we need to emit an update record for the primary context.
3795 UpdatedDeclContexts.insert(DC->getPrimaryContext());
3796
3797 // Make sure all visible decls are written. They will be recorded later. We
3798 // do this using a side data structure so we can sort the names into
3799 // a deterministic order.
3800 StoredDeclsMap *Map = DC->getPrimaryContext()->buildLookup();
3801 SmallVector<std::pair<DeclarationName, DeclContext::lookup_result>, 16>
3802 LookupResults;
3803 if (Map) {
3804 LookupResults.reserve(Map->size());
3805 for (auto &Entry : *Map)
3806 LookupResults.push_back(
3807 std::make_pair(Entry.first, Entry.second.getLookupResult()));
3808 }
3809
3810 llvm::sort(LookupResults, llvm::less_first());
3811 for (auto &NameAndResult : LookupResults) {
3812 DeclarationName Name = NameAndResult.first;
3813 DeclContext::lookup_result Result = NameAndResult.second;
3814 if (Name.getNameKind() == DeclarationName::CXXConstructorName ||
3815 Name.getNameKind() == DeclarationName::CXXConversionFunctionName) {
3816 // We have to work around a name lookup bug here where negative lookup
3817 // results for these names get cached in namespace lookup tables (these
3818 // names should never be looked up in a namespace).
3819 assert(Result.empty() && "Cannot have a constructor or conversion "((Result.empty() && "Cannot have a constructor or conversion "
"function name in a namespace!") ? static_cast<void> (
0) : __assert_fail ("Result.empty() && \"Cannot have a constructor or conversion \" \"function name in a namespace!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3820, __PRETTY_FUNCTION__))
3820 "function name in a namespace!")((Result.empty() && "Cannot have a constructor or conversion "
"function name in a namespace!") ? static_cast<void> (
0) : __assert_fail ("Result.empty() && \"Cannot have a constructor or conversion \" \"function name in a namespace!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 3820, __PRETTY_FUNCTION__))
;
3821 continue;
3822 }
3823
3824 for (NamedDecl *ND : Result)
3825 if (!ND->isFromASTFile())
3826 GetDeclRef(ND);
3827 }
3828
3829 return 0;
3830 }
3831
3832 if (DC->getPrimaryContext() != DC)
3833 return 0;
3834
3835 // Skip contexts which don't support name lookup.
3836 if (!DC->isLookupContext())
3837 return 0;
3838
3839 // If not in C++, we perform name lookup for the translation unit via the
3840 // IdentifierInfo chains, don't bother to build a visible-declarations table.
3841 if (DC->isTranslationUnit() && !Context.getLangOpts().CPlusPlus)
3842 return 0;
3843
3844 // Serialize the contents of the mapping used for lookup. Note that,
3845 // although we have two very different code paths, the serialized
3846 // representation is the same for both cases: a declaration name,
3847 // followed by a size, followed by references to the visible
3848 // declarations that have that name.
3849 uint64_t Offset = Stream.GetCurrentBitNo();
3850 StoredDeclsMap *Map = DC->buildLookup();
3851 if (!Map || Map->empty())
3852 return 0;
3853
3854 // Create the on-disk hash table in a buffer.
3855 SmallString<4096> LookupTable;
3856 GenerateNameLookupTable(DC, LookupTable);
3857
3858 // Write the lookup table
3859 RecordData::value_type Record[] = {DECL_CONTEXT_VISIBLE};
3860 Stream.EmitRecordWithBlob(DeclContextVisibleLookupAbbrev, Record,
3861 LookupTable);
3862 ++NumVisibleDeclContexts;
3863 return Offset;
3864}
3865
3866/// Write an UPDATE_VISIBLE block for the given context.
3867///
3868/// UPDATE_VISIBLE blocks contain the declarations that are added to an existing
3869/// DeclContext in a dependent AST file. As such, they only exist for the TU
3870/// (in C++), for namespaces, and for classes with forward-declared unscoped
3871/// enumeration members (in C++11).
3872void ASTWriter::WriteDeclContextVisibleUpdate(const DeclContext *DC) {
3873 StoredDeclsMap *Map = DC->getLookupPtr();
3874 if (!Map || Map->empty())
3875 return;
3876
3877 // Create the on-disk hash table in a buffer.
3878 SmallString<4096> LookupTable;
3879 GenerateNameLookupTable(DC, LookupTable);
3880
3881 // If we're updating a namespace, select a key declaration as the key for the
3882 // update record; those are the only ones that will be checked on reload.
3883 if (isa<NamespaceDecl>(DC))
3884 DC = cast<DeclContext>(Chain->getKeyDeclaration(cast<Decl>(DC)));
3885
3886 // Write the lookup table
3887 RecordData::value_type Record[] = {UPDATE_VISIBLE, getDeclID(cast<Decl>(DC))};
3888 Stream.EmitRecordWithBlob(UpdateVisibleAbbrev, Record, LookupTable);
3889}
3890
3891/// Write an FP_PRAGMA_OPTIONS block for the given FPOptions.
3892void ASTWriter::WriteFPPragmaOptions(const FPOptions &Opts) {
3893 RecordData::value_type Record[] = {Opts.getInt()};
3894 Stream.EmitRecord(FP_PRAGMA_OPTIONS, Record);
3895}
3896
3897/// Write an OPENCL_EXTENSIONS block for the given OpenCLOptions.
3898void ASTWriter::WriteOpenCLExtensions(Sema &SemaRef) {
3899 if (!SemaRef.Context.getLangOpts().OpenCL)
3900 return;
3901
3902 const OpenCLOptions &Opts = SemaRef.getOpenCLOptions();
3903 RecordData Record;
3904 for (const auto &I:Opts.OptMap) {
3905 AddString(I.getKey(), Record);
3906 auto V = I.getValue();
3907 Record.push_back(V.Supported ? 1 : 0);
3908 Record.push_back(V.Enabled ? 1 : 0);
3909 Record.push_back(V.Avail);
3910 Record.push_back(V.Core);
3911 }
3912 Stream.EmitRecord(OPENCL_EXTENSIONS, Record);
3913}
3914
3915void ASTWriter::WriteOpenCLExtensionTypes(Sema &SemaRef) {
3916 if (!SemaRef.Context.getLangOpts().OpenCL)
3917 return;
3918
3919 // Sort the elements of the map OpenCLTypeExtMap by TypeIDs,
3920 // without copying them.
3921 const llvm::DenseMap<const Type *, std::set<std::string>> &OpenCLTypeExtMap =
3922 SemaRef.OpenCLTypeExtMap;
3923 using ElementTy = std::pair<TypeID, const std::set<std::string> *>;
3924 llvm::SmallVector<ElementTy, 8> StableOpenCLTypeExtMap;
3925 StableOpenCLTypeExtMap.reserve(OpenCLTypeExtMap.size());
3926
3927 for (const auto &I : OpenCLTypeExtMap)
3928 StableOpenCLTypeExtMap.emplace_back(
3929 getTypeID(I.first->getCanonicalTypeInternal()), &I.second);
3930
3931 auto CompareByTypeID = [](const ElementTy &E1, const ElementTy &E2) -> bool {
3932 return E1.first < E2.first;
3933 };
3934 llvm::sort(StableOpenCLTypeExtMap, CompareByTypeID);
3935
3936 RecordData Record;
3937 for (const ElementTy &E : StableOpenCLTypeExtMap) {
3938 Record.push_back(E.first); // TypeID
3939 const std::set<std::string> *ExtSet = E.second;
3940 Record.push_back(static_cast<unsigned>(ExtSet->size()));
3941 for (const std::string &Ext : *ExtSet)
3942 AddString(Ext, Record);
3943 }
3944
3945 Stream.EmitRecord(OPENCL_EXTENSION_TYPES, Record);
3946}
3947
3948void ASTWriter::WriteOpenCLExtensionDecls(Sema &SemaRef) {
3949 if (!SemaRef.Context.getLangOpts().OpenCL)
3950 return;
3951
3952 // Sort the elements of the map OpenCLDeclExtMap by DeclIDs,
3953 // without copying them.
3954 const llvm::DenseMap<const Decl *, std::set<std::string>> &OpenCLDeclExtMap =
3955 SemaRef.OpenCLDeclExtMap;
3956 using ElementTy = std::pair<DeclID, const std::set<std::string> *>;
3957 llvm::SmallVector<ElementTy, 8> StableOpenCLDeclExtMap;
3958 StableOpenCLDeclExtMap.reserve(OpenCLDeclExtMap.size());
3959
3960 for (const auto &I : OpenCLDeclExtMap)
3961 StableOpenCLDeclExtMap.emplace_back(getDeclID(I.first), &I.second);
3962
3963 auto CompareByDeclID = [](const ElementTy &E1, const ElementTy &E2) -> bool {
3964 return E1.first < E2.first;
3965 };
3966 llvm::sort(StableOpenCLDeclExtMap, CompareByDeclID);
3967
3968 RecordData Record;
3969 for (const ElementTy &E : StableOpenCLDeclExtMap) {
3970 Record.push_back(E.first); // DeclID
3971 const std::set<std::string> *ExtSet = E.second;
3972 Record.push_back(static_cast<unsigned>(ExtSet->size()));
3973 for (const std::string &Ext : *ExtSet)
3974 AddString(Ext, Record);
3975 }
3976
3977 Stream.EmitRecord(OPENCL_EXTENSION_DECLS, Record);
3978}
3979
3980void ASTWriter::WriteCUDAPragmas(Sema &SemaRef) {
3981 if (SemaRef.ForceCUDAHostDeviceDepth > 0) {
3982 RecordData::value_type Record[] = {SemaRef.ForceCUDAHostDeviceDepth};
3983 Stream.EmitRecord(CUDA_PRAGMA_FORCE_HOST_DEVICE_DEPTH, Record);
3984 }
3985}
3986
3987void ASTWriter::WriteObjCCategories() {
3988 SmallVector<ObjCCategoriesInfo, 2> CategoriesMap;
3989 RecordData Categories;
3990
3991 for (unsigned I = 0, N = ObjCClassesWithCategories.size(); I != N; ++I) {
3992 unsigned Size = 0;
3993 unsigned StartIndex = Categories.size();
3994
3995 ObjCInterfaceDecl *Class = ObjCClassesWithCategories[I];
3996
3997 // Allocate space for the size.
3998 Categories.push_back(0);
3999
4000 // Add the categories.
4001 for (ObjCInterfaceDecl::known_categories_iterator
4002 Cat = Class->known_categories_begin(),
4003 CatEnd = Class->known_categories_end();
4004 Cat != CatEnd; ++Cat, ++Size) {
4005 assert(getDeclID(*Cat) != 0 && "Bogus category")((getDeclID(*Cat) != 0 && "Bogus category") ? static_cast
<void> (0) : __assert_fail ("getDeclID(*Cat) != 0 && \"Bogus category\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 4005, __PRETTY_FUNCTION__))
;
4006 AddDeclRef(*Cat, Categories);
4007 }
4008
4009 // Update the size.
4010 Categories[StartIndex] = Size;
4011
4012 // Record this interface -> category map.
4013 ObjCCategoriesInfo CatInfo = { getDeclID(Class), StartIndex };
4014 CategoriesMap.push_back(CatInfo);
4015 }
4016
4017 // Sort the categories map by the definition ID, since the reader will be
4018 // performing binary searches on this information.
4019 llvm::array_pod_sort(CategoriesMap.begin(), CategoriesMap.end());
4020
4021 // Emit the categories map.
4022 using namespace llvm;
4023
4024 auto Abbrev = std::make_shared<BitCodeAbbrev>();
4025 Abbrev->Add(BitCodeAbbrevOp(OBJC_CATEGORIES_MAP));
4026 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // # of entries
4027 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
4028 unsigned AbbrevID = Stream.EmitAbbrev(std::move(Abbrev));
4029
4030 RecordData::value_type Record[] = {OBJC_CATEGORIES_MAP, CategoriesMap.size()};
4031 Stream.EmitRecordWithBlob(AbbrevID, Record,
4032 reinterpret_cast<char *>(CategoriesMap.data()),
4033 CategoriesMap.size() * sizeof(ObjCCategoriesInfo));
4034
4035 // Emit the category lists.
4036 Stream.EmitRecord(OBJC_CATEGORIES, Categories);
4037}
4038
4039void ASTWriter::WriteLateParsedTemplates(Sema &SemaRef) {
4040 Sema::LateParsedTemplateMapT &LPTMap = SemaRef.LateParsedTemplateMap;
4041
4042 if (LPTMap.empty())
4043 return;
4044
4045 RecordData Record;
4046 for (auto &LPTMapEntry : LPTMap) {
4047 const FunctionDecl *FD = LPTMapEntry.first;
4048 LateParsedTemplate &LPT = *LPTMapEntry.second;
4049 AddDeclRef(FD, Record);
4050 AddDeclRef(LPT.D, Record);
4051 Record.push_back(LPT.Toks.size());
4052
4053 for (const auto &Tok : LPT.Toks) {
4054 AddToken(Tok, Record);
4055 }
4056 }
4057 Stream.EmitRecord(LATE_PARSED_TEMPLATE, Record);
4058}
4059
4060/// Write the state of 'pragma clang optimize' at the end of the module.
4061void ASTWriter::WriteOptimizePragmaOptions(Sema &SemaRef) {
4062 RecordData Record;
4063 SourceLocation PragmaLoc = SemaRef.getOptimizeOffPragmaLocation();
4064 AddSourceLocation(PragmaLoc, Record);
4065 Stream.EmitRecord(OPTIMIZE_PRAGMA_OPTIONS, Record);
4066}
4067
4068/// Write the state of 'pragma ms_struct' at the end of the module.
4069void ASTWriter::WriteMSStructPragmaOptions(Sema &SemaRef) {
4070 RecordData Record;
4071 Record.push_back(SemaRef.MSStructPragmaOn ? PMSST_ON : PMSST_OFF);
4072 Stream.EmitRecord(MSSTRUCT_PRAGMA_OPTIONS, Record);
4073}
4074
4075/// Write the state of 'pragma pointers_to_members' at the end of the
4076//module.
4077void ASTWriter::WriteMSPointersToMembersPragmaOptions(Sema &SemaRef) {
4078 RecordData Record;
4079 Record.push_back(SemaRef.MSPointerToMemberRepresentationMethod);
4080 AddSourceLocation(SemaRef.ImplicitMSInheritanceAttrLoc, Record);
4081 Stream.EmitRecord(POINTERS_TO_MEMBERS_PRAGMA_OPTIONS, Record);
4082}
4083
4084/// Write the state of 'pragma pack' at the end of the module.
4085void ASTWriter::WritePackPragmaOptions(Sema &SemaRef) {
4086 // Don't serialize pragma pack state for modules, since it should only take
4087 // effect on a per-submodule basis.
4088 if (WritingModule)
4089 return;
4090
4091 RecordData Record;
4092 Record.push_back(SemaRef.PackStack.CurrentValue);
4093 AddSourceLocation(SemaRef.PackStack.CurrentPragmaLocation, Record);
4094 Record.push_back(SemaRef.PackStack.Stack.size());
4095 for (const auto &StackEntry : SemaRef.PackStack.Stack) {
4096 Record.push_back(StackEntry.Value);
4097 AddSourceLocation(StackEntry.PragmaLocation, Record);
4098 AddSourceLocation(StackEntry.PragmaPushLocation, Record);
4099 AddString(StackEntry.StackSlotLabel, Record);
4100 }
4101 Stream.EmitRecord(PACK_PRAGMA_OPTIONS, Record);
4102}
4103
4104void ASTWriter::WriteModuleFileExtension(Sema &SemaRef,
4105 ModuleFileExtensionWriter &Writer) {
4106 // Enter the extension block.
4107 Stream.EnterSubblock(EXTENSION_BLOCK_ID, 4);
4108
4109 // Emit the metadata record abbreviation.
4110 auto Abv = std::make_shared<llvm::BitCodeAbbrev>();
4111 Abv->Add(llvm::BitCodeAbbrevOp(EXTENSION_METADATA));
4112 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::VBR, 6));
4113 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::VBR, 6));
4114 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::VBR, 6));
4115 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::VBR, 6));
4116 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Blob));
4117 unsigned Abbrev = Stream.EmitAbbrev(std::move(Abv));
4118
4119 // Emit the metadata record.
4120 RecordData Record;
4121 auto Metadata = Writer.getExtension()->getExtensionMetadata();
4122 Record.push_back(EXTENSION_METADATA);
4123 Record.push_back(Metadata.MajorVersion);
4124 Record.push_back(Metadata.MinorVersion);
4125 Record.push_back(Metadata.BlockName.size());
4126 Record.push_back(Metadata.UserInfo.size());
4127 SmallString<64> Buffer;
4128 Buffer += Metadata.BlockName;
4129 Buffer += Metadata.UserInfo;
4130 Stream.EmitRecordWithBlob(Abbrev, Record, Buffer);
4131
4132 // Emit the contents of the extension block.
4133 Writer.writeExtensionContents(SemaRef, Stream);
4134
4135 // Exit the extension block.
4136 Stream.ExitBlock();
4137}
4138
4139//===----------------------------------------------------------------------===//
4140// General Serialization Routines
4141//===----------------------------------------------------------------------===//
4142
4143void ASTRecordWriter::AddAttr(const Attr *A) {
4144 auto &Record = *this;
4145 if (!A)
4146 return Record.push_back(0);
4147 Record.push_back(A->getKind() + 1); // FIXME: stable encoding, target attrs
4148
4149 Record.AddIdentifierRef(A->getAttrName());
4150 Record.AddIdentifierRef(A->getScopeName());
4151 Record.AddSourceRange(A->getRange());
4152 Record.AddSourceLocation(A->getScopeLoc());
4153 Record.push_back(A->getParsedKind());
4154 Record.push_back(A->getSyntax());
4155 Record.push_back(A->getAttributeSpellingListIndexRaw());
4156
4157#include "clang/Serialization/AttrPCHWrite.inc"
4158}
4159
4160/// Emit the list of attributes to the specified record.
4161void ASTRecordWriter::AddAttributes(ArrayRef<const Attr *> Attrs) {
4162 push_back(Attrs.size());
4163 for (const auto *A : Attrs)
4164 AddAttr(A);
4165}
4166
4167void ASTWriter::AddToken(const Token &Tok, RecordDataImpl &Record) {
4168 AddSourceLocation(Tok.getLocation(), Record);
4169 Record.push_back(Tok.getLength());
4170
4171 // FIXME: When reading literal tokens, reconstruct the literal pointer
4172 // if it is needed.
4173 AddIdentifierRef(Tok.getIdentifierInfo(), Record);
4174 // FIXME: Should translate token kind to a stable encoding.
4175 Record.push_back(Tok.getKind());
4176 // FIXME: Should translate token flags to a stable encoding.
4177 Record.push_back(Tok.getFlags());
4178}
4179
4180void ASTWriter::AddString(StringRef Str, RecordDataImpl &Record) {
4181 Record.push_back(Str.size());
4182 Record.insert(Record.end(), Str.begin(), Str.end());
4183}
4184
4185bool ASTWriter::PreparePathForOutput(SmallVectorImpl<char> &Path) {
4186 assert(Context && "should have context when outputting path")((Context && "should have context when outputting path"
) ? static_cast<void> (0) : __assert_fail ("Context && \"should have context when outputting path\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 4186, __PRETTY_FUNCTION__))
;
4187
4188 bool Changed =
4189 cleanPathForOutput(Context->getSourceManager().getFileManager(), Path);
4190
4191 // Remove a prefix to make the path relative, if relevant.
4192 const char *PathBegin = Path.data();
4193 const char *PathPtr =
4194 adjustFilenameForRelocatableAST(PathBegin, BaseDirectory);
4195 if (PathPtr != PathBegin) {
4196 Path.erase(Path.begin(), Path.begin() + (PathPtr - PathBegin));
4197 Changed = true;
4198 }
4199
4200 return Changed;
4201}
4202
4203void ASTWriter::AddPath(StringRef Path, RecordDataImpl &Record) {
4204 SmallString<128> FilePath(Path);
4205 PreparePathForOutput(FilePath);
4206 AddString(FilePath, Record);
4207}
4208
4209void ASTWriter::EmitRecordWithPath(unsigned Abbrev, RecordDataRef Record,
4210 StringRef Path) {
4211 SmallString<128> FilePath(Path);
4212 PreparePathForOutput(FilePath);
4213 Stream.EmitRecordWithBlob(Abbrev, Record, FilePath);
4214}
4215
4216void ASTWriter::AddVersionTuple(const VersionTuple &Version,
4217 RecordDataImpl &Record) {
4218 Record.push_back(Version.getMajor());
4219 if (Optional<unsigned> Minor = Version.getMinor())
4220 Record.push_back(*Minor + 1);
4221 else
4222 Record.push_back(0);
4223 if (Optional<unsigned> Subminor = Version.getSubminor())
4224 Record.push_back(*Subminor + 1);
4225 else
4226 Record.push_back(0);
4227}
4228
4229/// Note that the identifier II occurs at the given offset
4230/// within the identifier table.
4231void ASTWriter::SetIdentifierOffset(const IdentifierInfo *II, uint32_t Offset) {
4232 IdentID ID = IdentifierIDs[II];
4233 // Only store offsets new to this AST file. Other identifier names are looked
4234 // up earlier in the chain and thus don't need an offset.
4235 if (ID >= FirstIdentID)
4236 IdentifierOffsets[ID - FirstIdentID] = Offset;
4237}
4238
4239/// Note that the selector Sel occurs at the given offset
4240/// within the method pool/selector table.
4241void ASTWriter::SetSelectorOffset(Selector Sel, uint32_t Offset) {
4242 unsigned ID = SelectorIDs[Sel];
4243 assert(ID && "Unknown selector")((ID && "Unknown selector") ? static_cast<void>
(0) : __assert_fail ("ID && \"Unknown selector\"", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 4243, __PRETTY_FUNCTION__))
;
4244 // Don't record offsets for selectors that are also available in a different
4245 // file.
4246 if (ID < FirstSelectorID)
4247 return;
4248 SelectorOffsets[ID - FirstSelectorID] = Offset;
4249}
4250
4251ASTWriter::ASTWriter(llvm::BitstreamWriter &Stream,
4252 SmallVectorImpl<char> &Buffer,
4253 InMemoryModuleCache &ModuleCache,
4254 ArrayRef<std::shared_ptr<ModuleFileExtension>> Extensions,
4255 bool IncludeTimestamps)
4256 : Stream(Stream), Buffer(Buffer), ModuleCache(ModuleCache),
4257 IncludeTimestamps(IncludeTimestamps) {
4258 for (const auto &Ext : Extensions) {
4259 if (auto Writer = Ext->createExtensionWriter(*this))
4260 ModuleFileExtensionWriters.push_back(std::move(Writer));
4261 }
4262}
4263
4264ASTWriter::~ASTWriter() {
4265 llvm::DeleteContainerSeconds(FileDeclIDs);
4266}
4267
4268const LangOptions &ASTWriter::getLangOpts() const {
4269 assert(WritingAST && "can't determine lang opts when not writing AST")((WritingAST && "can't determine lang opts when not writing AST"
) ? static_cast<void> (0) : __assert_fail ("WritingAST && \"can't determine lang opts when not writing AST\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 4269, __PRETTY_FUNCTION__))
;
4270 return Context->getLangOpts();
4271}
4272
4273time_t ASTWriter::getTimestampForOutput(const FileEntry *E) const {
4274 return IncludeTimestamps ? E->getModificationTime() : 0;
4275}
4276
4277ASTFileSignature ASTWriter::WriteAST(Sema &SemaRef,
4278 const std::string &OutputFile,
4279 Module *WritingModule, StringRef isysroot,
4280 bool hasErrors,
4281 bool ShouldCacheASTInMemory) {
4282 WritingAST = true;
4283
4284 ASTHasCompilerErrors = hasErrors;
4285
4286 // Emit the file header.
4287 Stream.Emit((unsigned)'C', 8);
4288 Stream.Emit((unsigned)'P', 8);
4289 Stream.Emit((unsigned)'C', 8);
4290 Stream.Emit((unsigned)'H', 8);
4291
4292 WriteBlockInfoBlock();
4293
4294 Context = &SemaRef.Context;
4295 PP = &SemaRef.PP;
4296 this->WritingModule = WritingModule;
4297 ASTFileSignature Signature =
4298 WriteASTCore(SemaRef, isysroot, OutputFile, WritingModule);
4299 Context = nullptr;
4300 PP = nullptr;
4301 this->WritingModule = nullptr;
4302 this->BaseDirectory.clear();
4303
4304 WritingAST = false;
4305 if (ShouldCacheASTInMemory) {
4306 // Construct MemoryBuffer and update buffer manager.
4307 ModuleCache.addBuiltPCM(OutputFile,
4308 llvm::MemoryBuffer::getMemBufferCopy(
4309 StringRef(Buffer.begin(), Buffer.size())));
4310 }
4311 return Signature;
4312}
4313
4314template<typename Vector>
4315static void AddLazyVectorDecls(ASTWriter &Writer, Vector &Vec,
4316 ASTWriter::RecordData &Record) {
4317 for (typename Vector::iterator I = Vec.begin(nullptr, true), E = Vec.end();
4318 I != E; ++I) {
4319 Writer.AddDeclRef(*I, Record);
4320 }
4321}
4322
4323ASTFileSignature ASTWriter::WriteASTCore(Sema &SemaRef, StringRef isysroot,
4324 const std::string &OutputFile,
4325 Module *WritingModule) {
4326 using namespace llvm;
4327
4328 bool isModule = WritingModule != nullptr;
4329
4330 // Make sure that the AST reader knows to finalize itself.
4331 if (Chain)
4332 Chain->finalizeForWriting();
4333
4334 ASTContext &Context = SemaRef.Context;
4335 Preprocessor &PP = SemaRef.PP;
4336
4337 // Set up predefined declaration IDs.
4338 auto RegisterPredefDecl = [&] (Decl *D, PredefinedDeclIDs ID) {
4339 if (D) {
4340 assert(D->isCanonicalDecl() && "predefined decl is not canonical")((D->isCanonicalDecl() && "predefined decl is not canonical"
) ? static_cast<void> (0) : __assert_fail ("D->isCanonicalDecl() && \"predefined decl is not canonical\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 4340, __PRETTY_FUNCTION__))
;
4341 DeclIDs[D] = ID;
4342 }
4343 };
4344 RegisterPredefDecl(Context.getTranslationUnitDecl(),
4345 PREDEF_DECL_TRANSLATION_UNIT_ID);
4346 RegisterPredefDecl(Context.ObjCIdDecl, PREDEF_DECL_OBJC_ID_ID);
4347 RegisterPredefDecl(Context.ObjCSelDecl, PREDEF_DECL_OBJC_SEL_ID);
4348 RegisterPredefDecl(Context.ObjCClassDecl, PREDEF_DECL_OBJC_CLASS_ID);
4349 RegisterPredefDecl(Context.ObjCProtocolClassDecl,
4350 PREDEF_DECL_OBJC_PROTOCOL_ID);
4351 RegisterPredefDecl(Context.Int128Decl, PREDEF_DECL_INT_128_ID);
4352 RegisterPredefDecl(Context.UInt128Decl, PREDEF_DECL_UNSIGNED_INT_128_ID);
4353 RegisterPredefDecl(Context.ObjCInstanceTypeDecl,
4354 PREDEF_DECL_OBJC_INSTANCETYPE_ID);
4355 RegisterPredefDecl(Context.BuiltinVaListDecl, PREDEF_DECL_BUILTIN_VA_LIST_ID);
4356 RegisterPredefDecl(Context.VaListTagDecl, PREDEF_DECL_VA_LIST_TAG);
4357 RegisterPredefDecl(Context.BuiltinMSVaListDecl,
4358 PREDEF_DECL_BUILTIN_MS_VA_LIST_ID);
4359 RegisterPredefDecl(Context.ExternCContext, PREDEF_DECL_EXTERN_C_CONTEXT_ID);
4360 RegisterPredefDecl(Context.MakeIntegerSeqDecl,
4361 PREDEF_DECL_MAKE_INTEGER_SEQ_ID);
4362 RegisterPredefDecl(Context.CFConstantStringTypeDecl,
4363 PREDEF_DECL_CF_CONSTANT_STRING_ID);
4364 RegisterPredefDecl(Context.CFConstantStringTagDecl,
4365 PREDEF_DECL_CF_CONSTANT_STRING_TAG_ID);
4366 RegisterPredefDecl(Context.TypePackElementDecl,
4367 PREDEF_DECL_TYPE_PACK_ELEMENT_ID);
4368
4369 // Build a record containing all of the tentative definitions in this file, in
4370 // TentativeDefinitions order. Generally, this record will be empty for
4371 // headers.
4372 RecordData TentativeDefinitions;
4373 AddLazyVectorDecls(*this, SemaRef.TentativeDefinitions, TentativeDefinitions);
4374
4375 // Build a record containing all of the file scoped decls in this file.
4376 RecordData UnusedFileScopedDecls;
4377 if (!isModule)
4378 AddLazyVectorDecls(*this, SemaRef.UnusedFileScopedDecls,
4379 UnusedFileScopedDecls);
4380
4381 // Build a record containing all of the delegating constructors we still need
4382 // to resolve.
4383 RecordData DelegatingCtorDecls;
4384 if (!isModule)
4385 AddLazyVectorDecls(*this, SemaRef.DelegatingCtorDecls, DelegatingCtorDecls);
4386
4387 // Write the set of weak, undeclared identifiers. We always write the
4388 // entire table, since later PCH files in a PCH chain are only interested in
4389 // the results at the end of the chain.
4390 RecordData WeakUndeclaredIdentifiers;
4391 for (auto &WeakUndeclaredIdentifier : SemaRef.WeakUndeclaredIdentifiers) {
4392 IdentifierInfo *II = WeakUndeclaredIdentifier.first;
4393 WeakInfo &WI = WeakUndeclaredIdentifier.second;
4394 AddIdentifierRef(II, WeakUndeclaredIdentifiers);
4395 AddIdentifierRef(WI.getAlias(), WeakUndeclaredIdentifiers);
4396 AddSourceLocation(WI.getLocation(), WeakUndeclaredIdentifiers);
4397 WeakUndeclaredIdentifiers.push_back(WI.getUsed());
4398 }
4399
4400 // Build a record containing all of the ext_vector declarations.
4401 RecordData ExtVectorDecls;
4402 AddLazyVectorDecls(*this, SemaRef.ExtVectorDecls, ExtVectorDecls);
4403
4404 // Build a record containing all of the VTable uses information.
4405 RecordData VTableUses;
4406 if (!SemaRef.VTableUses.empty()) {
4407 for (unsigned I = 0, N = SemaRef.VTableUses.size(); I != N; ++I) {
4408 AddDeclRef(SemaRef.VTableUses[I].first, VTableUses);
4409 AddSourceLocation(SemaRef.VTableUses[I].second, VTableUses);
4410 VTableUses.push_back(SemaRef.VTablesUsed[SemaRef.VTableUses[I].first]);
4411 }
4412 }
4413
4414 // Build a record containing all of the UnusedLocalTypedefNameCandidates.
4415 RecordData UnusedLocalTypedefNameCandidates;
4416 for (const TypedefNameDecl *TD : SemaRef.UnusedLocalTypedefNameCandidates)
4417 AddDeclRef(TD, UnusedLocalTypedefNameCandidates);
4418
4419 // Build a record containing all of pending implicit instantiations.
4420 RecordData PendingInstantiations;
4421 for (const auto &I : SemaRef.PendingInstantiations) {
4422 AddDeclRef(I.first, PendingInstantiations);
4423 AddSourceLocation(I.second, PendingInstantiations);
4424 }
4425 assert(SemaRef.PendingLocalImplicitInstantiations.empty() &&((SemaRef.PendingLocalImplicitInstantiations.empty() &&
"There are local ones at end of translation unit!") ? static_cast
<void> (0) : __assert_fail ("SemaRef.PendingLocalImplicitInstantiations.empty() && \"There are local ones at end of translation unit!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 4426, __PRETTY_FUNCTION__))
4426 "There are local ones at end of translation unit!")((SemaRef.PendingLocalImplicitInstantiations.empty() &&
"There are local ones at end of translation unit!") ? static_cast
<void> (0) : __assert_fail ("SemaRef.PendingLocalImplicitInstantiations.empty() && \"There are local ones at end of translation unit!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 4426, __PRETTY_FUNCTION__))
;
4427
4428 // Build a record containing some declaration references.
4429 RecordData SemaDeclRefs;
4430 if (SemaRef.StdNamespace || SemaRef.StdBadAlloc || SemaRef.StdAlignValT) {
4431 AddDeclRef(SemaRef.getStdNamespace(), SemaDeclRefs);
4432 AddDeclRef(SemaRef.getStdBadAlloc(), SemaDeclRefs);
4433 AddDeclRef(SemaRef.getStdAlignValT(), SemaDeclRefs);
4434 }
4435
4436 RecordData CUDASpecialDeclRefs;
4437 if (Context.getcudaConfigureCallDecl()) {
4438 AddDeclRef(Context.getcudaConfigureCallDecl(), CUDASpecialDeclRefs);
4439 }
4440
4441 // Build a record containing all of the known namespaces.
4442 RecordData KnownNamespaces;
4443 for (const auto &I : SemaRef.KnownNamespaces) {
4444 if (!I.second)
4445 AddDeclRef(I.first, KnownNamespaces);
4446 }
4447
4448 // Build a record of all used, undefined objects that require definitions.
4449 RecordData UndefinedButUsed;
4450
4451 SmallVector<std::pair<NamedDecl *, SourceLocation>, 16> Undefined;
4452 SemaRef.getUndefinedButUsed(Undefined);
4453 for (const auto &I : Undefined) {
4454 AddDeclRef(I.first, UndefinedButUsed);
4455 AddSourceLocation(I.second, UndefinedButUsed);
4456 }
4457
4458 // Build a record containing all delete-expressions that we would like to
4459 // analyze later in AST.
4460 RecordData DeleteExprsToAnalyze;
4461
4462 if (!isModule) {
4463 for (const auto &DeleteExprsInfo :
4464 SemaRef.getMismatchingDeleteExpressions()) {
4465 AddDeclRef(DeleteExprsInfo.first, DeleteExprsToAnalyze);
4466 DeleteExprsToAnalyze.push_back(DeleteExprsInfo.second.size());
4467 for (const auto &DeleteLoc : DeleteExprsInfo.second) {
4468 AddSourceLocation(DeleteLoc.first, DeleteExprsToAnalyze);
4469 DeleteExprsToAnalyze.push_back(DeleteLoc.second);
4470 }
4471 }
4472 }
4473
4474 // Write the control block
4475 WriteControlBlock(PP, Context, isysroot, OutputFile);
4476
4477 // Write the remaining AST contents.
4478 Stream.EnterSubblock(AST_BLOCK_ID, 5);
4479
4480 // This is so that older clang versions, before the introduction
4481 // of the control block, can read and reject the newer PCH format.
4482 {
4483 RecordData Record = {VERSION_MAJOR};
4484 Stream.EmitRecord(METADATA_OLD_FORMAT, Record);
4485 }
4486
4487 // Create a lexical update block containing all of the declarations in the
4488 // translation unit that do not come from other AST files.
4489 const TranslationUnitDecl *TU = Context.getTranslationUnitDecl();
4490 SmallVector<uint32_t, 128> NewGlobalKindDeclPairs;
4491 for (const auto *D : TU->noload_decls()) {
4492 if (!D->isFromASTFile()) {
4493 NewGlobalKindDeclPairs.push_back(D->getKind());
4494 NewGlobalKindDeclPairs.push_back(GetDeclRef(D));
4495 }
4496 }
4497
4498 auto Abv = std::make_shared<BitCodeAbbrev>();
4499 Abv->Add(llvm::BitCodeAbbrevOp(TU_UPDATE_LEXICAL));
4500 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Blob));
4501 unsigned TuUpdateLexicalAbbrev = Stream.EmitAbbrev(std::move(Abv));
4502 {
4503 RecordData::value_type Record[] = {TU_UPDATE_LEXICAL};
4504 Stream.EmitRecordWithBlob(TuUpdateLexicalAbbrev, Record,
4505 bytes(NewGlobalKindDeclPairs));
4506 }
4507
4508 // And a visible updates block for the translation unit.
4509 Abv = std::make_shared<BitCodeAbbrev>();
4510 Abv->Add(llvm::BitCodeAbbrevOp(UPDATE_VISIBLE));
4511 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::VBR, 6));
4512 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Blob));
4513 UpdateVisibleAbbrev = Stream.EmitAbbrev(std::move(Abv));
4514 WriteDeclContextVisibleUpdate(TU);
4515
4516 // If we have any extern "C" names, write out a visible update for them.
4517 if (Context.ExternCContext)
4518 WriteDeclContextVisibleUpdate(Context.ExternCContext);
4519
4520 // If the translation unit has an anonymous namespace, and we don't already
4521 // have an update block for it, write it as an update block.
4522 // FIXME: Why do we not do this if there's already an update block?
4523 if (NamespaceDecl *NS = TU->getAnonymousNamespace()) {
4524 ASTWriter::UpdateRecord &Record = DeclUpdates[TU];
4525 if (Record.empty())
4526 Record.push_back(DeclUpdate(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE, NS));
4527 }
4528
4529 // Add update records for all mangling numbers and static local numbers.
4530 // These aren't really update records, but this is a convenient way of
4531 // tagging this rare extra data onto the declarations.
4532 for (const auto &Number : Context.MangleNumbers)
4533 if (!Number.first->isFromASTFile())
4534 DeclUpdates[Number.first].push_back(DeclUpdate(UPD_MANGLING_NUMBER,
4535 Number.second));
4536 for (const auto &Number : Context.StaticLocalNumbers)
4537 if (!Number.first->isFromASTFile())
4538 DeclUpdates[Number.first].push_back(DeclUpdate(UPD_STATIC_LOCAL_NUMBER,
4539 Number.second));
4540
4541 // Make sure visible decls, added to DeclContexts previously loaded from
4542 // an AST file, are registered for serialization. Likewise for template
4543 // specializations added to imported templates.
4544 for (const auto *I : DeclsToEmitEvenIfUnreferenced) {
4545 GetDeclRef(I);
4546 }
4547
4548 // Make sure all decls associated with an identifier are registered for
4549 // serialization, if we're storing decls with identifiers.
4550 if (!WritingModule || !getLangOpts().CPlusPlus) {
4551 llvm::SmallVector<const IdentifierInfo*, 256> IIs;
4552 for (const auto &ID : PP.getIdentifierTable()) {
4553 const IdentifierInfo *II = ID.second;
4554 if (!Chain || !II->isFromAST() || II->hasChangedSinceDeserialization())
4555 IIs.push_back(II);
4556 }
4557 // Sort the identifiers to visit based on their name.
4558 llvm::sort(IIs, llvm::deref<std::less<>>());
4559 for (const IdentifierInfo *II : IIs) {
4560 for (IdentifierResolver::iterator D = SemaRef.IdResolver.begin(II),
4561 DEnd = SemaRef.IdResolver.end();
4562 D != DEnd; ++D) {
4563 GetDeclRef(*D);
4564 }
4565 }
4566 }
4567
4568 // For method pool in the module, if it contains an entry for a selector,
4569 // the entry should be complete, containing everything introduced by that
4570 // module and all modules it imports. It's possible that the entry is out of
4571 // date, so we need to pull in the new content here.
4572
4573 // It's possible that updateOutOfDateSelector can update SelectorIDs. To be
4574 // safe, we copy all selectors out.
4575 llvm::SmallVector<Selector, 256> AllSelectors;
4576 for (auto &SelectorAndID : SelectorIDs)
4577 AllSelectors.push_back(SelectorAndID.first);
4578 for (auto &Selector : AllSelectors)
4579 SemaRef.updateOutOfDateSelector(Selector);
4580
4581 // Form the record of special types.
4582 RecordData SpecialTypes;
4583 AddTypeRef(Context.getRawCFConstantStringType(), SpecialTypes);
4584 AddTypeRef(Context.getFILEType(), SpecialTypes);
4585 AddTypeRef(Context.getjmp_bufType(), SpecialTypes);
4586 AddTypeRef(Context.getsigjmp_bufType(), SpecialTypes);
4587 AddTypeRef(Context.ObjCIdRedefinitionType, SpecialTypes);
4588 AddTypeRef(Context.ObjCClassRedefinitionType, SpecialTypes);
4589 AddTypeRef(Context.ObjCSelRedefinitionType, SpecialTypes);
4590 AddTypeRef(Context.getucontext_tType(), SpecialTypes);
4591
4592 if (Chain) {
4593 // Write the mapping information describing our module dependencies and how
4594 // each of those modules were mapped into our own offset/ID space, so that
4595 // the reader can build the appropriate mapping to its own offset/ID space.
4596 // The map consists solely of a blob with the following format:
4597 // *(module-kind:i8
4598 // module-name-len:i16 module-name:len*i8
4599 // source-location-offset:i32
4600 // identifier-id:i32
4601 // preprocessed-entity-id:i32
4602 // macro-definition-id:i32
4603 // submodule-id:i32
4604 // selector-id:i32
4605 // declaration-id:i32
4606 // c++-base-specifiers-id:i32
4607 // type-id:i32)
4608 //
4609 // module-kind is the ModuleKind enum value. If it is MK_PrebuiltModule or
4610 // MK_ExplicitModule, then the module-name is the module name. Otherwise,
4611 // it is the module file name.
4612 auto Abbrev = std::make_shared<BitCodeAbbrev>();
4613 Abbrev->Add(BitCodeAbbrevOp(MODULE_OFFSET_MAP));
4614 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
4615 unsigned ModuleOffsetMapAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
4616 SmallString<2048> Buffer;
4617 {
4618 llvm::raw_svector_ostream Out(Buffer);
4619 for (ModuleFile &M : Chain->ModuleMgr) {
4620 using namespace llvm::support;
4621
4622 endian::Writer LE(Out, little);
4623 LE.write<uint8_t>(static_cast<uint8_t>(M.Kind));
4624 StringRef Name =
4625 M.Kind == MK_PrebuiltModule || M.Kind == MK_ExplicitModule
4626 ? M.ModuleName
4627 : M.FileName;
4628 LE.write<uint16_t>(Name.size());
4629 Out.write(Name.data(), Name.size());
4630
4631 // Note: if a base ID was uint max, it would not be possible to load
4632 // another module after it or have more than one entity inside it.
4633 uint32_t None = std::numeric_limits<uint32_t>::max();
4634
4635 auto writeBaseIDOrNone = [&](uint32_t BaseID, bool ShouldWrite) {
4636 assert(BaseID < std::numeric_limits<uint32_t>::max() && "base id too high")((BaseID < std::numeric_limits<uint32_t>::max() &&
"base id too high") ? static_cast<void> (0) : __assert_fail
("BaseID < std::numeric_limits<uint32_t>::max() && \"base id too high\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 4636, __PRETTY_FUNCTION__))
;
4637 if (ShouldWrite)
4638 LE.write<uint32_t>(BaseID);
4639 else
4640 LE.write<uint32_t>(None);
4641 };
4642
4643 // These values should be unique within a chain, since they will be read
4644 // as keys into ContinuousRangeMaps.
4645 writeBaseIDOrNone(M.SLocEntryBaseOffset, M.LocalNumSLocEntries);
4646 writeBaseIDOrNone(M.BaseIdentifierID, M.LocalNumIdentifiers);
4647 writeBaseIDOrNone(M.BaseMacroID, M.LocalNumMacros);
4648 writeBaseIDOrNone(M.BasePreprocessedEntityID,
4649 M.NumPreprocessedEntities);
4650 writeBaseIDOrNone(M.BaseSubmoduleID, M.LocalNumSubmodules);
4651 writeBaseIDOrNone(M.BaseSelectorID, M.LocalNumSelectors);
4652 writeBaseIDOrNone(M.BaseDeclID, M.LocalNumDecls);
4653 writeBaseIDOrNone(M.BaseTypeIndex, M.LocalNumTypes);
4654 }
4655 }
4656 RecordData::value_type Record[] = {MODULE_OFFSET_MAP};
4657 Stream.EmitRecordWithBlob(ModuleOffsetMapAbbrev, Record,
4658 Buffer.data(), Buffer.size());
4659 }
4660
4661 RecordData DeclUpdatesOffsetsRecord;
4662
4663 // Keep writing types, declarations, and declaration update records
4664 // until we've emitted all of them.
4665 Stream.EnterSubblock(DECLTYPES_BLOCK_ID, /*bits for abbreviations*/5);
4666 WriteTypeAbbrevs();
4667 WriteDeclAbbrevs();
4668 do {
4669 WriteDeclUpdatesBlocks(DeclUpdatesOffsetsRecord);
4670 while (!DeclTypesToEmit.empty()) {
4671 DeclOrType DOT = DeclTypesToEmit.front();
4672 DeclTypesToEmit.pop();
4673 if (DOT.isType())
4674 WriteType(DOT.getType());
4675 else
4676 WriteDecl(Context, DOT.getDecl());
4677 }
4678 } while (!DeclUpdates.empty());
4679 Stream.ExitBlock();
4680
4681 DoneWritingDeclsAndTypes = true;
4682
4683 // These things can only be done once we've written out decls and types.
4684 WriteTypeDeclOffsets();
4685 if (!DeclUpdatesOffsetsRecord.empty())
4686 Stream.EmitRecord(DECL_UPDATE_OFFSETS, DeclUpdatesOffsetsRecord);
4687 WriteFileDeclIDsMap();
4688 WriteSourceManagerBlock(Context.getSourceManager(), PP);
4689 WriteComments();
4690 WritePreprocessor(PP, isModule);
4691 WriteHeaderSearch(PP.getHeaderSearchInfo());
4692 WriteSelectors(SemaRef);
4693 WriteReferencedSelectorsPool(SemaRef);
4694 WriteLateParsedTemplates(SemaRef);
4695 WriteIdentifierTable(PP, SemaRef.IdResolver, isModule);
4696 WriteFPPragmaOptions(SemaRef.getFPOptions());
4697 WriteOpenCLExtensions(SemaRef);
4698 WriteOpenCLExtensionTypes(SemaRef);
4699 WriteCUDAPragmas(SemaRef);
4700
4701 // If we're emitting a module, write out the submodule information.
4702 if (WritingModule)
4703 WriteSubmodules(WritingModule);
4704
4705 // We need to have information about submodules to correctly deserialize
4706 // decls from OpenCLExtensionDecls block
4707 WriteOpenCLExtensionDecls(SemaRef);
4708
4709 Stream.EmitRecord(SPECIAL_TYPES, SpecialTypes);
4710
4711 // Write the record containing external, unnamed definitions.
4712 if (!EagerlyDeserializedDecls.empty())
4713 Stream.EmitRecord(EAGERLY_DESERIALIZED_DECLS, EagerlyDeserializedDecls);
4714
4715 if (!ModularCodegenDecls.empty())
4716 Stream.EmitRecord(MODULAR_CODEGEN_DECLS, ModularCodegenDecls);
4717
4718 // Write the record containing tentative definitions.
4719 if (!TentativeDefinitions.empty())
4720 Stream.EmitRecord(TENTATIVE_DEFINITIONS, TentativeDefinitions);
4721
4722 // Write the record containing unused file scoped decls.
4723 if (!UnusedFileScopedDecls.empty())
4724 Stream.EmitRecord(UNUSED_FILESCOPED_DECLS, UnusedFileScopedDecls);
4725
4726 // Write the record containing weak undeclared identifiers.
4727 if (!WeakUndeclaredIdentifiers.empty())
4728 Stream.EmitRecord(WEAK_UNDECLARED_IDENTIFIERS,
4729 WeakUndeclaredIdentifiers);
4730
4731 // Write the record containing ext_vector type names.
4732 if (!ExtVectorDecls.empty())
4733 Stream.EmitRecord(EXT_VECTOR_DECLS, ExtVectorDecls);
4734
4735 // Write the record containing VTable uses information.
4736 if (!VTableUses.empty())
4737 Stream.EmitRecord(VTABLE_USES, VTableUses);
4738
4739 // Write the record containing potentially unused local typedefs.
4740 if (!UnusedLocalTypedefNameCandidates.empty())
4741 Stream.EmitRecord(UNUSED_LOCAL_TYPEDEF_NAME_CANDIDATES,
4742 UnusedLocalTypedefNameCandidates);
4743
4744 // Write the record containing pending implicit instantiations.
4745 if (!PendingInstantiations.empty())
4746 Stream.EmitRecord(PENDING_IMPLICIT_INSTANTIATIONS, PendingInstantiations);
4747
4748 // Write the record containing declaration references of Sema.
4749 if (!SemaDeclRefs.empty())
4750 Stream.EmitRecord(SEMA_DECL_REFS, SemaDeclRefs);
4751
4752 // Write the record containing CUDA-specific declaration references.
4753 if (!CUDASpecialDeclRefs.empty())
4754 Stream.EmitRecord(CUDA_SPECIAL_DECL_REFS, CUDASpecialDeclRefs);
4755
4756 // Write the delegating constructors.
4757 if (!DelegatingCtorDecls.empty())
4758 Stream.EmitRecord(DELEGATING_CTORS, DelegatingCtorDecls);
4759
4760 // Write the known namespaces.
4761 if (!KnownNamespaces.empty())
4762 Stream.EmitRecord(KNOWN_NAMESPACES, KnownNamespaces);
4763
4764 // Write the undefined internal functions and variables, and inline functions.
4765 if (!UndefinedButUsed.empty())
4766 Stream.EmitRecord(UNDEFINED_BUT_USED, UndefinedButUsed);
4767
4768 if (!DeleteExprsToAnalyze.empty())
4769 Stream.EmitRecord(DELETE_EXPRS_TO_ANALYZE, DeleteExprsToAnalyze);
4770
4771 // Write the visible updates to DeclContexts.
4772 for (auto *DC : UpdatedDeclContexts)
4773 WriteDeclContextVisibleUpdate(DC);
4774
4775 if (!WritingModule) {
4776 // Write the submodules that were imported, if any.
4777 struct ModuleInfo {
4778 uint64_t ID;
4779 Module *M;
4780 ModuleInfo(uint64_t ID, Module *M) : ID(ID), M(M) {}
4781 };
4782 llvm::SmallVector<ModuleInfo, 64> Imports;
4783 for (const auto *I : Context.local_imports()) {
4784 assert(SubmoduleIDs.find(I->getImportedModule()) != SubmoduleIDs.end())((SubmoduleIDs.find(I->getImportedModule()) != SubmoduleIDs
.end()) ? static_cast<void> (0) : __assert_fail ("SubmoduleIDs.find(I->getImportedModule()) != SubmoduleIDs.end()"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 4784, __PRETTY_FUNCTION__))
;
4785 Imports.push_back(ModuleInfo(SubmoduleIDs[I->getImportedModule()],
4786 I->getImportedModule()));
4787 }
4788
4789 if (!Imports.empty()) {
4790 auto Cmp = [](const ModuleInfo &A, const ModuleInfo &B) {
4791 return A.ID < B.ID;
4792 };
4793 auto Eq = [](const ModuleInfo &A, const ModuleInfo &B) {
4794 return A.ID == B.ID;
4795 };
4796
4797 // Sort and deduplicate module IDs.
4798 llvm::sort(Imports, Cmp);
4799 Imports.erase(std::unique(Imports.begin(), Imports.end(), Eq),
4800 Imports.end());
4801
4802 RecordData ImportedModules;
4803 for (const auto &Import : Imports) {
4804 ImportedModules.push_back(Import.ID);
4805 // FIXME: If the module has macros imported then later has declarations
4806 // imported, this location won't be the right one as a location for the
4807 // declaration imports.
4808 AddSourceLocation(PP.getModuleImportLoc(Import.M), ImportedModules);
4809 }
4810
4811 Stream.EmitRecord(IMPORTED_MODULES, ImportedModules);
4812 }
4813 }
4814
4815 WriteObjCCategories();
4816 if(!WritingModule) {
4817 WriteOptimizePragmaOptions(SemaRef);
4818 WriteMSStructPragmaOptions(SemaRef);
4819 WriteMSPointersToMembersPragmaOptions(SemaRef);
4820 }
4821 WritePackPragmaOptions(SemaRef);
4822
4823 // Some simple statistics
4824 RecordData::value_type Record[] = {
4825 NumStatements, NumMacros, NumLexicalDeclContexts, NumVisibleDeclContexts};
4826 Stream.EmitRecord(STATISTICS, Record);
4827 Stream.ExitBlock();
4828
4829 // Write the module file extension blocks.
4830 for (const auto &ExtWriter : ModuleFileExtensionWriters)
4831 WriteModuleFileExtension(SemaRef, *ExtWriter);
4832
4833 return writeUnhashedControlBlock(PP, Context);
4834}
4835
4836void ASTWriter::WriteDeclUpdatesBlocks(RecordDataImpl &OffsetsRecord) {
4837 if (DeclUpdates.empty())
4838 return;
4839
4840 DeclUpdateMap LocalUpdates;
4841 LocalUpdates.swap(DeclUpdates);
4842
4843 for (auto &DeclUpdate : LocalUpdates) {
4844 const Decl *D = DeclUpdate.first;
4845
4846 bool HasUpdatedBody = false;
4847 RecordData RecordData;
4848 ASTRecordWriter Record(*this, RecordData);
4849 for (auto &Update : DeclUpdate.second) {
4850 DeclUpdateKind Kind = (DeclUpdateKind)Update.getKind();
4851
4852 // An updated body is emitted last, so that the reader doesn't need
4853 // to skip over the lazy body to reach statements for other records.
4854 if (Kind == UPD_CXX_ADDED_FUNCTION_DEFINITION)
4855 HasUpdatedBody = true;
4856 else
4857 Record.push_back(Kind);
4858
4859 switch (Kind) {
4860 case UPD_CXX_ADDED_IMPLICIT_MEMBER:
4861 case UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION:
4862 case UPD_CXX_ADDED_ANONYMOUS_NAMESPACE:
4863 assert(Update.getDecl() && "no decl to add?")((Update.getDecl() && "no decl to add?") ? static_cast
<void> (0) : __assert_fail ("Update.getDecl() && \"no decl to add?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 4863, __PRETTY_FUNCTION__))
;
4864 Record.push_back(GetDeclRef(Update.getDecl()));
4865 break;
4866
4867 case UPD_CXX_ADDED_FUNCTION_DEFINITION:
4868 break;
4869
4870 case UPD_CXX_POINT_OF_INSTANTIATION:
4871 // FIXME: Do we need to also save the template specialization kind here?
4872 Record.AddSourceLocation(Update.getLoc());
4873 break;
4874
4875 case UPD_CXX_ADDED_VAR_DEFINITION: {
4876 const VarDecl *VD = cast<VarDecl>(D);
4877 Record.push_back(VD->isInline());
4878 Record.push_back(VD->isInlineSpecified());
4879 if (VD->getInit()) {
4880 Record.push_back(!VD->isInitKnownICE() ? 1
4881 : (VD->isInitICE() ? 3 : 2));
4882 Record.AddStmt(const_cast<Expr*>(VD->getInit()));
4883 } else {
4884 Record.push_back(0);
4885 }
4886 break;
4887 }
4888
4889 case UPD_CXX_INSTANTIATED_DEFAULT_ARGUMENT:
4890 Record.AddStmt(const_cast<Expr *>(
4891 cast<ParmVarDecl>(Update.getDecl())->getDefaultArg()));
4892 break;
4893
4894 case UPD_CXX_INSTANTIATED_DEFAULT_MEMBER_INITIALIZER:
4895 Record.AddStmt(
4896 cast<FieldDecl>(Update.getDecl())->getInClassInitializer());
4897 break;
4898
4899 case UPD_CXX_INSTANTIATED_CLASS_DEFINITION: {
4900 auto *RD = cast<CXXRecordDecl>(D);
4901 UpdatedDeclContexts.insert(RD->getPrimaryContext());
4902 Record.push_back(RD->isParamDestroyedInCallee());
4903 Record.push_back(RD->getArgPassingRestrictions());
4904 Record.AddCXXDefinitionData(RD);
4905 Record.AddOffset(WriteDeclContextLexicalBlock(
4906 *Context, const_cast<CXXRecordDecl *>(RD)));
4907
4908 // This state is sometimes updated by template instantiation, when we
4909 // switch from the specialization referring to the template declaration
4910 // to it referring to the template definition.
4911 if (auto *MSInfo = RD->getMemberSpecializationInfo()) {
4912 Record.push_back(MSInfo->getTemplateSpecializationKind());
4913 Record.AddSourceLocation(MSInfo->getPointOfInstantiation());
4914 } else {
4915 auto *Spec = cast<ClassTemplateSpecializationDecl>(RD);
4916 Record.push_back(Spec->getTemplateSpecializationKind());
4917 Record.AddSourceLocation(Spec->getPointOfInstantiation());
4918
4919 // The instantiation might have been resolved to a partial
4920 // specialization. If so, record which one.
4921 auto From = Spec->getInstantiatedFrom();
4922 if (auto PartialSpec =
4923 From.dyn_cast<ClassTemplatePartialSpecializationDecl*>()) {
4924 Record.push_back(true);
4925 Record.AddDeclRef(PartialSpec);
4926 Record.AddTemplateArgumentList(
4927 &Spec->getTemplateInstantiationArgs());
4928 } else {
4929 Record.push_back(false);
4930 }
4931 }
4932 Record.push_back(RD->getTagKind());
4933 Record.AddSourceLocation(RD->getLocation());
4934 Record.AddSourceLocation(RD->getBeginLoc());
4935 Record.AddSourceRange(RD->getBraceRange());
4936
4937 // Instantiation may change attributes; write them all out afresh.
4938 Record.push_back(D->hasAttrs());
4939 if (D->hasAttrs())
4940 Record.AddAttributes(D->getAttrs());
4941
4942 // FIXME: Ensure we don't get here for explicit instantiations.
4943 break;
4944 }
4945
4946 case UPD_CXX_RESOLVED_DTOR_DELETE:
4947 Record.AddDeclRef(Update.getDecl());
4948 Record.AddStmt(cast<CXXDestructorDecl>(D)->getOperatorDeleteThisArg());
4949 break;
4950
4951 case UPD_CXX_RESOLVED_EXCEPTION_SPEC: {
4952 auto prototype =
4953 cast<FunctionDecl>(D)->getType()->castAs<FunctionProtoType>();
4954 Record.writeExceptionSpecInfo(prototype->getExceptionSpecInfo());
4955 break;
4956 }
4957
4958 case UPD_CXX_DEDUCED_RETURN_TYPE:
4959 Record.push_back(GetOrCreateTypeID(Update.getType()));
4960 break;
4961
4962 case UPD_DECL_MARKED_USED:
4963 break;
4964
4965 case UPD_MANGLING_NUMBER:
4966 case UPD_STATIC_LOCAL_NUMBER:
4967 Record.push_back(Update.getNumber());
4968 break;
4969
4970 case UPD_DECL_MARKED_OPENMP_THREADPRIVATE:
4971 Record.AddSourceRange(
4972 D->getAttr<OMPThreadPrivateDeclAttr>()->getRange());
4973 break;
4974
4975 case UPD_DECL_MARKED_OPENMP_ALLOCATE: {
4976 auto *A = D->getAttr<OMPAllocateDeclAttr>();
4977 Record.push_back(A->getAllocatorType());
4978 Record.AddStmt(A->getAllocator());
4979 Record.AddSourceRange(A->getRange());
4980 break;
4981 }
4982
4983 case UPD_DECL_MARKED_OPENMP_DECLARETARGET:
4984 Record.push_back(D->getAttr<OMPDeclareTargetDeclAttr>()->getMapType());
4985 Record.AddSourceRange(
4986 D->getAttr<OMPDeclareTargetDeclAttr>()->getRange());
4987 break;
4988
4989 case UPD_DECL_EXPORTED:
4990 Record.push_back(getSubmoduleID(Update.getModule()));
4991 break;
4992
4993 case UPD_ADDED_ATTR_TO_RECORD:
4994 Record.AddAttributes(llvm::makeArrayRef(Update.getAttr()));
4995 break;
4996 }
4997 }
4998
4999 if (HasUpdatedBody) {
5000 const auto *Def = cast<FunctionDecl>(D);
5001 Record.push_back(UPD_CXX_ADDED_FUNCTION_DEFINITION);
5002 Record.push_back(Def->isInlined());
5003 Record.AddSourceLocation(Def->getInnerLocStart());
5004 Record.AddFunctionDefinition(Def);
5005 }
5006
5007 OffsetsRecord.push_back(GetDeclRef(D));
5008 OffsetsRecord.push_back(Record.Emit(DECL_UPDATES));
5009 }
5010}
5011
5012void ASTWriter::AddSourceLocation(SourceLocation Loc, RecordDataImpl &Record) {
5013 uint32_t Raw = Loc.getRawEncoding();
5014 Record.push_back((Raw << 1) | (Raw >> 31));
5015}
5016
5017void ASTWriter::AddSourceRange(SourceRange Range, RecordDataImpl &Record) {
5018 AddSourceLocation(Range.getBegin(), Record);
5019 AddSourceLocation(Range.getEnd(), Record);
5020}
5021
5022void ASTRecordWriter::AddAPFloat(const llvm::APFloat &Value) {
5023 AddAPInt(Value.bitcastToAPInt());
5024}
5025
5026static void WriteFixedPointSemantics(ASTRecordWriter &Record,
5027 FixedPointSemantics FPSema) {
5028 Record.push_back(FPSema.getWidth());
5029 Record.push_back(FPSema.getScale());
5030 Record.push_back(FPSema.isSigned() | FPSema.isSaturated() << 1 |
5031 FPSema.hasUnsignedPadding() << 2);
5032}
5033
5034void ASTRecordWriter::AddAPValue(const APValue &Value) {
5035 APValue::ValueKind Kind = Value.getKind();
5036 push_back(static_cast<uint64_t>(Kind));
5037 switch (Kind) {
5038 case APValue::None:
5039 case APValue::Indeterminate:
5040 return;
5041 case APValue::Int:
5042 AddAPSInt(Value.getInt());
5043 return;
5044 case APValue::Float:
5045 push_back(static_cast<uint64_t>(
5046 llvm::APFloatBase::SemanticsToEnum(Value.getFloat().getSemantics())));
5047 AddAPFloat(Value.getFloat());
5048 return;
5049 case APValue::FixedPoint: {
5050 WriteFixedPointSemantics(*this, Value.getFixedPoint().getSemantics());
5051 AddAPSInt(Value.getFixedPoint().getValue());
5052 return;
5053 }
5054 case APValue::ComplexInt: {
5055 AddAPSInt(Value.getComplexIntReal());
5056 AddAPSInt(Value.getComplexIntImag());
5057 return;
5058 }
5059 case APValue::ComplexFloat: {
5060 push_back(static_cast<uint64_t>(llvm::APFloatBase::SemanticsToEnum(
5061 Value.getComplexFloatReal().getSemantics())));
5062 AddAPFloat(Value.getComplexFloatReal());
5063 push_back(static_cast<uint64_t>(llvm::APFloatBase::SemanticsToEnum(
5064 Value.getComplexFloatImag().getSemantics())));
5065 AddAPFloat(Value.getComplexFloatImag());
5066 return;
5067 }
5068 case APValue::LValue:
5069 case APValue::Vector:
5070 case APValue::Array:
5071 case APValue::Struct:
5072 case APValue::Union:
5073 case APValue::MemberPointer:
5074 case APValue::AddrLabelDiff:
5075 // TODO : Handle all these APValue::ValueKind.
5076 return;
5077 }
5078 llvm_unreachable("Invalid APValue::ValueKind")::llvm::llvm_unreachable_internal("Invalid APValue::ValueKind"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5078)
;
5079}
5080
5081void ASTWriter::AddIdentifierRef(const IdentifierInfo *II, RecordDataImpl &Record) {
5082 Record.push_back(getIdentifierRef(II));
5083}
5084
5085IdentID ASTWriter::getIdentifierRef(const IdentifierInfo *II) {
5086 if (!II)
5087 return 0;
5088
5089 IdentID &ID = IdentifierIDs[II];
5090 if (ID == 0)
5091 ID = NextIdentID++;
5092 return ID;
5093}
5094
5095MacroID ASTWriter::getMacroRef(MacroInfo *MI, const IdentifierInfo *Name) {
5096 // Don't emit builtin macros like __LINE__ to the AST file unless they
5097 // have been redefined by the header (in which case they are not
5098 // isBuiltinMacro).
5099 if (!MI || MI->isBuiltinMacro())
5100 return 0;
5101
5102 MacroID &ID = MacroIDs[MI];
5103 if (ID == 0) {
5104 ID = NextMacroID++;
5105 MacroInfoToEmitData Info = { Name, MI, ID };
5106 MacroInfosToEmit.push_back(Info);
5107 }
5108 return ID;
5109}
5110
5111MacroID ASTWriter::getMacroID(MacroInfo *MI) {
5112 if (!MI || MI->isBuiltinMacro())
5113 return 0;
5114
5115 assert(MacroIDs.find(MI) != MacroIDs.end() && "Macro not emitted!")((MacroIDs.find(MI) != MacroIDs.end() && "Macro not emitted!"
) ? static_cast<void> (0) : __assert_fail ("MacroIDs.find(MI) != MacroIDs.end() && \"Macro not emitted!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5115, __PRETTY_FUNCTION__))
;
5116 return MacroIDs[MI];
5117}
5118
5119uint64_t ASTWriter::getMacroDirectivesOffset(const IdentifierInfo *Name) {
5120 return IdentMacroDirectivesOffsetMap.lookup(Name);
5121}
5122
5123void ASTRecordWriter::AddSelectorRef(const Selector SelRef) {
5124 Record->push_back(Writer->getSelectorRef(SelRef));
5125}
5126
5127SelectorID ASTWriter::getSelectorRef(Selector Sel) {
5128 if (Sel.getAsOpaquePtr() == nullptr) {
5129 return 0;
5130 }
5131
5132 SelectorID SID = SelectorIDs[Sel];
5133 if (SID == 0 && Chain) {
5134 // This might trigger a ReadSelector callback, which will set the ID for
5135 // this selector.
5136 Chain->LoadSelector(Sel);
5137 SID = SelectorIDs[Sel];
5138 }
5139 if (SID == 0) {
5140 SID = NextSelectorID++;
5141 SelectorIDs[Sel] = SID;
5142 }
5143 return SID;
5144}
5145
5146void ASTRecordWriter::AddCXXTemporary(const CXXTemporary *Temp) {
5147 AddDeclRef(Temp->getDestructor());
5148}
5149
5150void ASTRecordWriter::AddTemplateArgumentLocInfo(
5151 TemplateArgument::ArgKind Kind, const TemplateArgumentLocInfo &Arg) {
5152 switch (Kind) {
5153 case TemplateArgument::Expression:
5154 AddStmt(Arg.getAsExpr());
5155 break;
5156 case TemplateArgument::Type:
5157 AddTypeSourceInfo(Arg.getAsTypeSourceInfo());
5158 break;
5159 case TemplateArgument::Template:
5160 AddNestedNameSpecifierLoc(Arg.getTemplateQualifierLoc());
5161 AddSourceLocation(Arg.getTemplateNameLoc());
5162 break;
5163 case TemplateArgument::TemplateExpansion:
5164 AddNestedNameSpecifierLoc(Arg.getTemplateQualifierLoc());
5165 AddSourceLocation(Arg.getTemplateNameLoc());
5166 AddSourceLocation(Arg.getTemplateEllipsisLoc());
5167 break;
5168 case TemplateArgument::Null:
5169 case TemplateArgument::Integral:
5170 case TemplateArgument::Declaration:
5171 case TemplateArgument::NullPtr:
5172 case TemplateArgument::Pack:
5173 // FIXME: Is this right?
5174 break;
5175 }
5176}
5177
5178void ASTRecordWriter::AddTemplateArgumentLoc(const TemplateArgumentLoc &Arg) {
5179 AddTemplateArgument(Arg.getArgument());
5180
5181 if (Arg.getArgument().getKind() == TemplateArgument::Expression) {
5182 bool InfoHasSameExpr
5183 = Arg.getArgument().getAsExpr() == Arg.getLocInfo().getAsExpr();
5184 Record->push_back(InfoHasSameExpr);
5185 if (InfoHasSameExpr)
5186 return; // Avoid storing the same expr twice.
5187 }
5188 AddTemplateArgumentLocInfo(Arg.getArgument().getKind(), Arg.getLocInfo());
5189}
5190
5191void ASTRecordWriter::AddTypeSourceInfo(TypeSourceInfo *TInfo) {
5192 if (!TInfo) {
5193 AddTypeRef(QualType());
5194 return;
5195 }
5196
5197 AddTypeRef(TInfo->getType());
5198 AddTypeLoc(TInfo->getTypeLoc());
5199}
5200
5201void ASTRecordWriter::AddTypeLoc(TypeLoc TL) {
5202 TypeLocWriter TLW(*this);
5203 for (; !TL.isNull(); TL = TL.getNextTypeLoc())
5204 TLW.Visit(TL);
5205}
5206
5207void ASTWriter::AddTypeRef(QualType T, RecordDataImpl &Record) {
5208 Record.push_back(GetOrCreateTypeID(T));
5209}
5210
5211TypeID ASTWriter::GetOrCreateTypeID(QualType T) {
5212 assert(Context)((Context) ? static_cast<void> (0) : __assert_fail ("Context"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5212, __PRETTY_FUNCTION__))
;
5213 return MakeTypeID(*Context, T, [&](QualType T) -> TypeIdx {
5214 if (T.isNull())
5215 return TypeIdx();
5216 assert(!T.getLocalFastQualifiers())((!T.getLocalFastQualifiers()) ? static_cast<void> (0) :
__assert_fail ("!T.getLocalFastQualifiers()", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5216, __PRETTY_FUNCTION__))
;
5217
5218 TypeIdx &Idx = TypeIdxs[T];
5219 if (Idx.getIndex() == 0) {
5220 if (DoneWritingDeclsAndTypes) {
5221 assert(0 && "New type seen after serializing all the types to emit!")((0 && "New type seen after serializing all the types to emit!"
) ? static_cast<void> (0) : __assert_fail ("0 && \"New type seen after serializing all the types to emit!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5221, __PRETTY_FUNCTION__))
;
5222 return TypeIdx();
5223 }
5224
5225 // We haven't seen this type before. Assign it a new ID and put it
5226 // into the queue of types to emit.
5227 Idx = TypeIdx(NextTypeID++);
5228 DeclTypesToEmit.push(T);
5229 }
5230 return Idx;
5231 });
5232}
5233
5234TypeID ASTWriter::getTypeID(QualType T) const {
5235 assert(Context)((Context) ? static_cast<void> (0) : __assert_fail ("Context"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5235, __PRETTY_FUNCTION__))
;
5236 return MakeTypeID(*Context, T, [&](QualType T) -> TypeIdx {
5237 if (T.isNull())
5238 return TypeIdx();
5239 assert(!T.getLocalFastQualifiers())((!T.getLocalFastQualifiers()) ? static_cast<void> (0) :
__assert_fail ("!T.getLocalFastQualifiers()", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5239, __PRETTY_FUNCTION__))
;
5240
5241 TypeIdxMap::const_iterator I = TypeIdxs.find(T);
5242 assert(I != TypeIdxs.end() && "Type not emitted!")((I != TypeIdxs.end() && "Type not emitted!") ? static_cast
<void> (0) : __assert_fail ("I != TypeIdxs.end() && \"Type not emitted!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5242, __PRETTY_FUNCTION__))
;
5243 return I->second;
5244 });
5245}
5246
5247void ASTWriter::AddDeclRef(const Decl *D, RecordDataImpl &Record) {
5248 Record.push_back(GetDeclRef(D));
5249}
5250
5251DeclID ASTWriter::GetDeclRef(const Decl *D) {
5252 assert(WritingAST && "Cannot request a declaration ID before AST writing")((WritingAST && "Cannot request a declaration ID before AST writing"
) ? static_cast<void> (0) : __assert_fail ("WritingAST && \"Cannot request a declaration ID before AST writing\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5252, __PRETTY_FUNCTION__))
;
5253
5254 if (!D) {
5255 return 0;
5256 }
5257
5258 // If D comes from an AST file, its declaration ID is already known and
5259 // fixed.
5260 if (D->isFromASTFile())
5261 return D->getGlobalID();
5262
5263 assert(!(reinterpret_cast<uintptr_t>(D) & 0x01) && "Invalid decl pointer")((!(reinterpret_cast<uintptr_t>(D) & 0x01) &&
"Invalid decl pointer") ? static_cast<void> (0) : __assert_fail
("!(reinterpret_cast<uintptr_t>(D) & 0x01) && \"Invalid decl pointer\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5263, __PRETTY_FUNCTION__))
;
5264 DeclID &ID = DeclIDs[D];
5265 if (ID == 0) {
5266 if (DoneWritingDeclsAndTypes) {
5267 assert(0 && "New decl seen after serializing all the decls to emit!")((0 && "New decl seen after serializing all the decls to emit!"
) ? static_cast<void> (0) : __assert_fail ("0 && \"New decl seen after serializing all the decls to emit!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5267, __PRETTY_FUNCTION__))
;
5268 return 0;
5269 }
5270
5271 // We haven't seen this declaration before. Give it a new ID and
5272 // enqueue it in the list of declarations to emit.
5273 ID = NextDeclID++;
5274 DeclTypesToEmit.push(const_cast<Decl *>(D));
5275 }
5276
5277 return ID;
5278}
5279
5280DeclID ASTWriter::getDeclID(const Decl *D) {
5281 if (!D)
5282 return 0;
5283
5284 // If D comes from an AST file, its declaration ID is already known and
5285 // fixed.
5286 if (D->isFromASTFile())
5287 return D->getGlobalID();
5288
5289 assert(DeclIDs.find(D) != DeclIDs.end() && "Declaration not emitted!")((DeclIDs.find(D) != DeclIDs.end() && "Declaration not emitted!"
) ? static_cast<void> (0) : __assert_fail ("DeclIDs.find(D) != DeclIDs.end() && \"Declaration not emitted!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5289, __PRETTY_FUNCTION__))
;
5290 return DeclIDs[D];
5291}
5292
5293void ASTWriter::associateDeclWithFile(const Decl *D, DeclID ID) {
5294 assert(ID)((ID) ? static_cast<void> (0) : __assert_fail ("ID", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5294, __PRETTY_FUNCTION__))
;
5295 assert(D)((D) ? static_cast<void> (0) : __assert_fail ("D", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5295, __PRETTY_FUNCTION__))
;
5296
5297 SourceLocation Loc = D->getLocation();
5298 if (Loc.isInvalid())
5299 return;
5300
5301 // We only keep track of the file-level declarations of each file.
5302 if (!D->getLexicalDeclContext()->isFileContext())
5303 return;
5304 // FIXME: ParmVarDecls that are part of a function type of a parameter of
5305 // a function/objc method, should not have TU as lexical context.
5306 // TemplateTemplateParmDecls that are part of an alias template, should not
5307 // have TU as lexical context.
5308 if (isa<ParmVarDecl>(D) || isa<TemplateTemplateParmDecl>(D))
5309 return;
5310
5311 SourceManager &SM = Context->getSourceManager();
5312 SourceLocation FileLoc = SM.getFileLoc(Loc);
5313 assert(SM.isLocalSourceLocation(FileLoc))((SM.isLocalSourceLocation(FileLoc)) ? static_cast<void>
(0) : __assert_fail ("SM.isLocalSourceLocation(FileLoc)", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5313, __PRETTY_FUNCTION__))
;
5314 FileID FID;
5315 unsigned Offset;
5316 std::tie(FID, Offset) = SM.getDecomposedLoc(FileLoc);
5317 if (FID.isInvalid())
5318 return;
5319 assert(SM.getSLocEntry(FID).isFile())((SM.getSLocEntry(FID).isFile()) ? static_cast<void> (0
) : __assert_fail ("SM.getSLocEntry(FID).isFile()", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5319, __PRETTY_FUNCTION__))
;
5320
5321 DeclIDInFileInfo *&Info = FileDeclIDs[FID];
5322 if (!Info)
5323 Info = new DeclIDInFileInfo();
5324
5325 std::pair<unsigned, serialization::DeclID> LocDecl(Offset, ID);
5326 LocDeclIDsTy &Decls = Info->DeclIDs;
5327
5328 if (Decls.empty() || Decls.back().first <= Offset) {
5329 Decls.push_back(LocDecl);
5330 return;
5331 }
5332
5333 LocDeclIDsTy::iterator I =
5334 llvm::upper_bound(Decls, LocDecl, llvm::less_first());
5335
5336 Decls.insert(I, LocDecl);
5337}
5338
5339unsigned ASTWriter::getAnonymousDeclarationNumber(const NamedDecl *D) {
5340 assert(needsAnonymousDeclarationNumber(D) &&((needsAnonymousDeclarationNumber(D) && "expected an anonymous declaration"
) ? static_cast<void> (0) : __assert_fail ("needsAnonymousDeclarationNumber(D) && \"expected an anonymous declaration\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5341, __PRETTY_FUNCTION__))
5341 "expected an anonymous declaration")((needsAnonymousDeclarationNumber(D) && "expected an anonymous declaration"
) ? static_cast<void> (0) : __assert_fail ("needsAnonymousDeclarationNumber(D) && \"expected an anonymous declaration\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5341, __PRETTY_FUNCTION__))
;
5342
5343 // Number the anonymous declarations within this context, if we've not
5344 // already done so.
5345 auto It = AnonymousDeclarationNumbers.find(D);
5346 if (It == AnonymousDeclarationNumbers.end()) {
5347 auto *DC = D->getLexicalDeclContext();
5348 numberAnonymousDeclsWithin(DC, [&](const NamedDecl *ND, unsigned Number) {
5349 AnonymousDeclarationNumbers[ND] = Number;
5350 });
5351
5352 It = AnonymousDeclarationNumbers.find(D);
5353 assert(It != AnonymousDeclarationNumbers.end() &&((It != AnonymousDeclarationNumbers.end() && "declaration not found within its lexical context"
) ? static_cast<void> (0) : __assert_fail ("It != AnonymousDeclarationNumbers.end() && \"declaration not found within its lexical context\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5354, __PRETTY_FUNCTION__))
5354 "declaration not found within its lexical context")((It != AnonymousDeclarationNumbers.end() && "declaration not found within its lexical context"
) ? static_cast<void> (0) : __assert_fail ("It != AnonymousDeclarationNumbers.end() && \"declaration not found within its lexical context\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5354, __PRETTY_FUNCTION__))
;
5355 }
5356
5357 return It->second;
5358}
5359
5360void ASTRecordWriter::AddDeclarationNameLoc(const DeclarationNameLoc &DNLoc,
5361 DeclarationName Name) {
5362 switch (Name.getNameKind()) {
5363 case DeclarationName::CXXConstructorName:
5364 case DeclarationName::CXXDestructorName:
5365 case DeclarationName::CXXConversionFunctionName:
5366 AddTypeSourceInfo(DNLoc.NamedType.TInfo);
5367 break;
5368
5369 case DeclarationName::CXXOperatorName:
5370 AddSourceLocation(SourceLocation::getFromRawEncoding(
5371 DNLoc.CXXOperatorName.BeginOpNameLoc));
5372 AddSourceLocation(
5373 SourceLocation::getFromRawEncoding(DNLoc.CXXOperatorName.EndOpNameLoc));
5374 break;
5375
5376 case DeclarationName::CXXLiteralOperatorName:
5377 AddSourceLocation(SourceLocation::getFromRawEncoding(
5378 DNLoc.CXXLiteralOperatorName.OpNameLoc));
5379 break;
5380
5381 case DeclarationName::Identifier:
5382 case DeclarationName::ObjCZeroArgSelector:
5383 case DeclarationName::ObjCOneArgSelector:
5384 case DeclarationName::ObjCMultiArgSelector:
5385 case DeclarationName::CXXUsingDirective:
5386 case DeclarationName::CXXDeductionGuideName:
5387 break;
5388 }
5389}
5390
5391void ASTRecordWriter::AddDeclarationNameInfo(
5392 const DeclarationNameInfo &NameInfo) {
5393 AddDeclarationName(NameInfo.getName());
5394 AddSourceLocation(NameInfo.getLoc());
5395 AddDeclarationNameLoc(NameInfo.getInfo(), NameInfo.getName());
5396}
5397
5398void ASTRecordWriter::AddQualifierInfo(const QualifierInfo &Info) {
5399 AddNestedNameSpecifierLoc(Info.QualifierLoc);
5400 Record->push_back(Info.NumTemplParamLists);
5401 for (unsigned i = 0, e = Info.NumTemplParamLists; i != e; ++i)
5402 AddTemplateParameterList(Info.TemplParamLists[i]);
5403}
5404
5405void ASTRecordWriter::AddNestedNameSpecifierLoc(NestedNameSpecifierLoc NNS) {
5406 // Nested name specifiers usually aren't too long. I think that 8 would
5407 // typically accommodate the vast majority.
5408 SmallVector<NestedNameSpecifierLoc , 8> NestedNames;
5409
5410 // Push each of the nested-name-specifiers's onto a stack for
5411 // serialization in reverse order.
5412 while (NNS) {
5413 NestedNames.push_back(NNS);
5414 NNS = NNS.getPrefix();
5415 }
5416
5417 Record->push_back(NestedNames.size());
5418 while(!NestedNames.empty()) {
5419 NNS = NestedNames.pop_back_val();
5420 NestedNameSpecifier::SpecifierKind Kind
5421 = NNS.getNestedNameSpecifier()->getKind();
5422 Record->push_back(Kind);
5423 switch (Kind) {
5424 case NestedNameSpecifier::Identifier:
5425 AddIdentifierRef(NNS.getNestedNameSpecifier()->getAsIdentifier());
5426 AddSourceRange(NNS.getLocalSourceRange());
5427 break;
5428
5429 case NestedNameSpecifier::Namespace:
5430 AddDeclRef(NNS.getNestedNameSpecifier()->getAsNamespace());
5431 AddSourceRange(NNS.getLocalSourceRange());
5432 break;
5433
5434 case NestedNameSpecifier::NamespaceAlias:
5435 AddDeclRef(NNS.getNestedNameSpecifier()->getAsNamespaceAlias());
5436 AddSourceRange(NNS.getLocalSourceRange());
5437 break;
5438
5439 case NestedNameSpecifier::TypeSpec:
5440 case NestedNameSpecifier::TypeSpecWithTemplate:
5441 Record->push_back(Kind == NestedNameSpecifier::TypeSpecWithTemplate);
5442 AddTypeRef(NNS.getTypeLoc().getType());
5443 AddTypeLoc(NNS.getTypeLoc());
5444 AddSourceLocation(NNS.getLocalSourceRange().getEnd());
5445 break;
5446
5447 case NestedNameSpecifier::Global:
5448 AddSourceLocation(NNS.getLocalSourceRange().getEnd());
5449 break;
5450
5451 case NestedNameSpecifier::Super:
5452 AddDeclRef(NNS.getNestedNameSpecifier()->getAsRecordDecl());
5453 AddSourceRange(NNS.getLocalSourceRange());
5454 break;
5455 }
5456 }
5457}
5458
5459void ASTRecordWriter::AddTemplateParameterList(
5460 const TemplateParameterList *TemplateParams) {
5461 assert(TemplateParams && "No TemplateParams!")((TemplateParams && "No TemplateParams!") ? static_cast
<void> (0) : __assert_fail ("TemplateParams && \"No TemplateParams!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5461, __PRETTY_FUNCTION__))
;
5462 AddSourceLocation(TemplateParams->getTemplateLoc());
5463 AddSourceLocation(TemplateParams->getLAngleLoc());
5464 AddSourceLocation(TemplateParams->getRAngleLoc());
5465
5466 Record->push_back(TemplateParams->size());
5467 for (const auto &P : *TemplateParams)
5468 AddDeclRef(P);
5469 if (const Expr *RequiresClause = TemplateParams->getRequiresClause()) {
5470 Record->push_back(true);
5471 AddStmt(const_cast<Expr*>(RequiresClause));
5472 } else {
5473 Record->push_back(false);
5474 }
5475}
5476
5477/// Emit a template argument list.
5478void ASTRecordWriter::AddTemplateArgumentList(
5479 const TemplateArgumentList *TemplateArgs) {
5480 assert(TemplateArgs && "No TemplateArgs!")((TemplateArgs && "No TemplateArgs!") ? static_cast<
void> (0) : __assert_fail ("TemplateArgs && \"No TemplateArgs!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5480, __PRETTY_FUNCTION__))
;
5481 Record->push_back(TemplateArgs->size());
5482 for (int i = 0, e = TemplateArgs->size(); i != e; ++i)
5483 AddTemplateArgument(TemplateArgs->get(i));
5484}
5485
5486void ASTRecordWriter::AddASTTemplateArgumentListInfo(
5487 const ASTTemplateArgumentListInfo *ASTTemplArgList) {
5488 assert(ASTTemplArgList && "No ASTTemplArgList!")((ASTTemplArgList && "No ASTTemplArgList!") ? static_cast
<void> (0) : __assert_fail ("ASTTemplArgList && \"No ASTTemplArgList!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5488, __PRETTY_FUNCTION__))
;
5489 AddSourceLocation(ASTTemplArgList->LAngleLoc);
5490 AddSourceLocation(ASTTemplArgList->RAngleLoc);
5491 Record->push_back(ASTTemplArgList->NumTemplateArgs);
5492 const TemplateArgumentLoc *TemplArgs = ASTTemplArgList->getTemplateArgs();
5493 for (int i = 0, e = ASTTemplArgList->NumTemplateArgs; i != e; ++i)
5494 AddTemplateArgumentLoc(TemplArgs[i]);
5495}
5496
5497void ASTRecordWriter::AddUnresolvedSet(const ASTUnresolvedSet &Set) {
5498 Record->push_back(Set.size());
5499 for (ASTUnresolvedSet::const_iterator
5500 I = Set.begin(), E = Set.end(); I != E; ++I) {
5501 AddDeclRef(I.getDecl());
5502 Record->push_back(I.getAccess());
5503 }
5504}
5505
5506// FIXME: Move this out of the main ASTRecordWriter interface.
5507void ASTRecordWriter::AddCXXBaseSpecifier(const CXXBaseSpecifier &Base) {
5508 Record->push_back(Base.isVirtual());
5509 Record->push_back(Base.isBaseOfClass());
5510 Record->push_back(Base.getAccessSpecifierAsWritten());
5511 Record->push_back(Base.getInheritConstructors());
5512 AddTypeSourceInfo(Base.getTypeSourceInfo());
5513 AddSourceRange(Base.getSourceRange());
5514 AddSourceLocation(Base.isPackExpansion()? Base.getEllipsisLoc()
5515 : SourceLocation());
5516}
5517
5518static uint64_t EmitCXXBaseSpecifiers(ASTWriter &W,
5519 ArrayRef<CXXBaseSpecifier> Bases) {
5520 ASTWriter::RecordData Record;
5521 ASTRecordWriter Writer(W, Record);
5522 Writer.push_back(Bases.size());
5523
5524 for (auto &Base : Bases)
5525 Writer.AddCXXBaseSpecifier(Base);
5526
5527 return Writer.Emit(serialization::DECL_CXX_BASE_SPECIFIERS);
5528}
5529
5530// FIXME: Move this out of the main ASTRecordWriter interface.
5531void ASTRecordWriter::AddCXXBaseSpecifiers(ArrayRef<CXXBaseSpecifier> Bases) {
5532 AddOffset(EmitCXXBaseSpecifiers(*Writer, Bases));
5533}
5534
5535static uint64_t
5536EmitCXXCtorInitializers(ASTWriter &W,
5537 ArrayRef<CXXCtorInitializer *> CtorInits) {
5538 ASTWriter::RecordData Record;
5539 ASTRecordWriter Writer(W, Record);
5540 Writer.push_back(CtorInits.size());
5541
5542 for (auto *Init : CtorInits) {
5543 if (Init->isBaseInitializer()) {
5544 Writer.push_back(CTOR_INITIALIZER_BASE);
5545 Writer.AddTypeSourceInfo(Init->getTypeSourceInfo());
5546 Writer.push_back(Init->isBaseVirtual());
5547 } else if (Init->isDelegatingInitializer()) {
5548 Writer.push_back(CTOR_INITIALIZER_DELEGATING);
5549 Writer.AddTypeSourceInfo(Init->getTypeSourceInfo());
5550 } else if (Init->isMemberInitializer()){
5551 Writer.push_back(CTOR_INITIALIZER_MEMBER);
5552 Writer.AddDeclRef(Init->getMember());
5553 } else {
5554 Writer.push_back(CTOR_INITIALIZER_INDIRECT_MEMBER);
5555 Writer.AddDeclRef(Init->getIndirectMember());
5556 }
5557
5558 Writer.AddSourceLocation(Init->getMemberLocation());
5559 Writer.AddStmt(Init->getInit());
5560 Writer.AddSourceLocation(Init->getLParenLoc());
5561 Writer.AddSourceLocation(Init->getRParenLoc());
5562 Writer.push_back(Init->isWritten());
5563 if (Init->isWritten())
5564 Writer.push_back(Init->getSourceOrder());
5565 }
5566
5567 return Writer.Emit(serialization::DECL_CXX_CTOR_INITIALIZERS);
5568}
5569
5570// FIXME: Move this out of the main ASTRecordWriter interface.
5571void ASTRecordWriter::AddCXXCtorInitializers(
5572 ArrayRef<CXXCtorInitializer *> CtorInits) {
5573 AddOffset(EmitCXXCtorInitializers(*Writer, CtorInits));
5574}
5575
5576void ASTRecordWriter::AddCXXDefinitionData(const CXXRecordDecl *D) {
5577 auto &Data = D->data();
5578 Record->push_back(Data.IsLambda);
5579
5580 #define FIELD(Name, Width, Merge) \
5581 Record->push_back(Data.Name);
5582 #include "clang/AST/CXXRecordDeclDefinitionBits.def"
5583
5584 // getODRHash will compute the ODRHash if it has not been previously computed.
5585 Record->push_back(D->getODRHash());
5586 bool ModulesDebugInfo = Writer->Context->getLangOpts().ModulesDebugInfo &&
5587 Writer->WritingModule && !D->isDependentType();
5588 Record->push_back(ModulesDebugInfo);
5589 if (ModulesDebugInfo)
5590 Writer->ModularCodegenDecls.push_back(Writer->GetDeclRef(D));
5591
5592 // IsLambda bit is already saved.
5593
5594 Record->push_back(Data.NumBases);
5595 if (Data.NumBases > 0)
5596 AddCXXBaseSpecifiers(Data.bases());
5597
5598 // FIXME: Make VBases lazily computed when needed to avoid storing them.
5599 Record->push_back(Data.NumVBases);
5600 if (Data.NumVBases > 0)
5601 AddCXXBaseSpecifiers(Data.vbases());
5602
5603 AddUnresolvedSet(Data.Conversions.get(*Writer->Context));
5604 Record->push_back(Data.ComputedVisibleConversions);
5605 if (Data.ComputedVisibleConversions)
5606 AddUnresolvedSet(Data.VisibleConversions.get(*Writer->Context));
5607 // Data.Definition is the owning decl, no need to write it.
5608 AddDeclRef(D->getFirstFriend());
5609
5610 // Add lambda-specific data.
5611 if (Data.IsLambda) {
5612 auto &Lambda = D->getLambdaData();
5613 Record->push_back(Lambda.Dependent);
5614 Record->push_back(Lambda.IsGenericLambda);
5615 Record->push_back(Lambda.CaptureDefault);
5616 Record->push_back(Lambda.NumCaptures);
5617 Record->push_back(Lambda.NumExplicitCaptures);
5618 Record->push_back(Lambda.HasKnownInternalLinkage);
5619 Record->push_back(Lambda.ManglingNumber);
5620 AddDeclRef(D->getLambdaContextDecl());
5621 AddTypeSourceInfo(Lambda.MethodTyInfo);
5622 for (unsigned I = 0, N = Lambda.NumCaptures; I != N; ++I) {
5623 const LambdaCapture &Capture = Lambda.Captures[I];
5624 AddSourceLocation(Capture.getLocation());
5625 Record->push_back(Capture.isImplicit());
5626 Record->push_back(Capture.getCaptureKind());
5627 switch (Capture.getCaptureKind()) {
5628 case LCK_StarThis:
5629 case LCK_This:
5630 case LCK_VLAType:
5631 break;
5632 case LCK_ByCopy:
5633 case LCK_ByRef:
5634 VarDecl *Var =
5635 Capture.capturesVariable() ? Capture.getCapturedVar() : nullptr;
5636 AddDeclRef(Var);
5637 AddSourceLocation(Capture.isPackExpansion() ? Capture.getEllipsisLoc()
5638 : SourceLocation());
5639 break;
5640 }
5641 }
5642 }
5643}
5644
5645void ASTWriter::ReaderInitialized(ASTReader *Reader) {
5646 assert(Reader && "Cannot remove chain")((Reader && "Cannot remove chain") ? static_cast<void
> (0) : __assert_fail ("Reader && \"Cannot remove chain\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5646, __PRETTY_FUNCTION__))
;
5647 assert((!Chain || Chain == Reader) && "Cannot replace chain")(((!Chain || Chain == Reader) && "Cannot replace chain"
) ? static_cast<void> (0) : __assert_fail ("(!Chain || Chain == Reader) && \"Cannot replace chain\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5647, __PRETTY_FUNCTION__))
;
5648 assert(FirstDeclID == NextDeclID &&((FirstDeclID == NextDeclID && FirstTypeID == NextTypeID
&& FirstIdentID == NextIdentID && FirstMacroID
== NextMacroID && FirstSubmoduleID == NextSubmoduleID
&& FirstSelectorID == NextSelectorID && "Setting chain after writing has started."
) ? static_cast<void> (0) : __assert_fail ("FirstDeclID == NextDeclID && FirstTypeID == NextTypeID && FirstIdentID == NextIdentID && FirstMacroID == NextMacroID && FirstSubmoduleID == NextSubmoduleID && FirstSelectorID == NextSelectorID && \"Setting chain after writing has started.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5654, __PRETTY_FUNCTION__))
5649 FirstTypeID == NextTypeID &&((FirstDeclID == NextDeclID && FirstTypeID == NextTypeID
&& FirstIdentID == NextIdentID && FirstMacroID
== NextMacroID && FirstSubmoduleID == NextSubmoduleID
&& FirstSelectorID == NextSelectorID && "Setting chain after writing has started."
) ? static_cast<void> (0) : __assert_fail ("FirstDeclID == NextDeclID && FirstTypeID == NextTypeID && FirstIdentID == NextIdentID && FirstMacroID == NextMacroID && FirstSubmoduleID == NextSubmoduleID && FirstSelectorID == NextSelectorID && \"Setting chain after writing has started.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5654, __PRETTY_FUNCTION__))
5650 FirstIdentID == NextIdentID &&((FirstDeclID == NextDeclID && FirstTypeID == NextTypeID
&& FirstIdentID == NextIdentID && FirstMacroID
== NextMacroID && FirstSubmoduleID == NextSubmoduleID
&& FirstSelectorID == NextSelectorID && "Setting chain after writing has started."
) ? static_cast<void> (0) : __assert_fail ("FirstDeclID == NextDeclID && FirstTypeID == NextTypeID && FirstIdentID == NextIdentID && FirstMacroID == NextMacroID && FirstSubmoduleID == NextSubmoduleID && FirstSelectorID == NextSelectorID && \"Setting chain after writing has started.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5654, __PRETTY_FUNCTION__))
5651 FirstMacroID == NextMacroID &&((FirstDeclID == NextDeclID && FirstTypeID == NextTypeID
&& FirstIdentID == NextIdentID && FirstMacroID
== NextMacroID && FirstSubmoduleID == NextSubmoduleID
&& FirstSelectorID == NextSelectorID && "Setting chain after writing has started."
) ? static_cast<void> (0) : __assert_fail ("FirstDeclID == NextDeclID && FirstTypeID == NextTypeID && FirstIdentID == NextIdentID && FirstMacroID == NextMacroID && FirstSubmoduleID == NextSubmoduleID && FirstSelectorID == NextSelectorID && \"Setting chain after writing has started.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5654, __PRETTY_FUNCTION__))
5652 FirstSubmoduleID == NextSubmoduleID &&((FirstDeclID == NextDeclID && FirstTypeID == NextTypeID
&& FirstIdentID == NextIdentID && FirstMacroID
== NextMacroID && FirstSubmoduleID == NextSubmoduleID
&& FirstSelectorID == NextSelectorID && "Setting chain after writing has started."
) ? static_cast<void> (0) : __assert_fail ("FirstDeclID == NextDeclID && FirstTypeID == NextTypeID && FirstIdentID == NextIdentID && FirstMacroID == NextMacroID && FirstSubmoduleID == NextSubmoduleID && FirstSelectorID == NextSelectorID && \"Setting chain after writing has started.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5654, __PRETTY_FUNCTION__))
5653 FirstSelectorID == NextSelectorID &&((FirstDeclID == NextDeclID && FirstTypeID == NextTypeID
&& FirstIdentID == NextIdentID && FirstMacroID
== NextMacroID && FirstSubmoduleID == NextSubmoduleID
&& FirstSelectorID == NextSelectorID && "Setting chain after writing has started."
) ? static_cast<void> (0) : __assert_fail ("FirstDeclID == NextDeclID && FirstTypeID == NextTypeID && FirstIdentID == NextIdentID && FirstMacroID == NextMacroID && FirstSubmoduleID == NextSubmoduleID && FirstSelectorID == NextSelectorID && \"Setting chain after writing has started.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5654, __PRETTY_FUNCTION__))
5654 "Setting chain after writing has started.")((FirstDeclID == NextDeclID && FirstTypeID == NextTypeID
&& FirstIdentID == NextIdentID && FirstMacroID
== NextMacroID && FirstSubmoduleID == NextSubmoduleID
&& FirstSelectorID == NextSelectorID && "Setting chain after writing has started."
) ? static_cast<void> (0) : __assert_fail ("FirstDeclID == NextDeclID && FirstTypeID == NextTypeID && FirstIdentID == NextIdentID && FirstMacroID == NextMacroID && FirstSubmoduleID == NextSubmoduleID && FirstSelectorID == NextSelectorID && \"Setting chain after writing has started.\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5654, __PRETTY_FUNCTION__))
;
5655
5656 Chain = Reader;
5657
5658 // Note, this will get called multiple times, once one the reader starts up
5659 // and again each time it's done reading a PCH or module.
5660 FirstDeclID = NUM_PREDEF_DECL_IDS + Chain->getTotalNumDecls();
5661 FirstTypeID = NUM_PREDEF_TYPE_IDS + Chain->getTotalNumTypes();
5662 FirstIdentID = NUM_PREDEF_IDENT_IDS + Chain->getTotalNumIdentifiers();
5663 FirstMacroID = NUM_PREDEF_MACRO_IDS + Chain->getTotalNumMacros();
5664 FirstSubmoduleID = NUM_PREDEF_SUBMODULE_IDS + Chain->getTotalNumSubmodules();
5665 FirstSelectorID = NUM_PREDEF_SELECTOR_IDS + Chain->getTotalNumSelectors();
5666 NextDeclID = FirstDeclID;
5667 NextTypeID = FirstTypeID;
5668 NextIdentID = FirstIdentID;
5669 NextMacroID = FirstMacroID;
5670 NextSelectorID = FirstSelectorID;
5671 NextSubmoduleID = FirstSubmoduleID;
5672}
5673
5674void ASTWriter::IdentifierRead(IdentID ID, IdentifierInfo *II) {
5675 // Always keep the highest ID. See \p TypeRead() for more information.
5676 IdentID &StoredID = IdentifierIDs[II];
5677 if (ID > StoredID)
5678 StoredID = ID;
5679}
5680
5681void ASTWriter::MacroRead(serialization::MacroID ID, MacroInfo *MI) {
5682 // Always keep the highest ID. See \p TypeRead() for more information.
5683 MacroID &StoredID = MacroIDs[MI];
5684 if (ID > StoredID)
5685 StoredID = ID;
5686}
5687
5688void ASTWriter::TypeRead(TypeIdx Idx, QualType T) {
5689 // Always take the highest-numbered type index. This copes with an interesting
5690 // case for chained AST writing where we schedule writing the type and then,
5691 // later, deserialize the type from another AST. In this case, we want to
5692 // keep the higher-numbered entry so that we can properly write it out to
5693 // the AST file.
5694 TypeIdx &StoredIdx = TypeIdxs[T];
5695 if (Idx.getIndex() >= StoredIdx.getIndex())
5696 StoredIdx = Idx;
5697}
5698
5699void ASTWriter::SelectorRead(SelectorID ID, Selector S) {
5700 // Always keep the highest ID. See \p TypeRead() for more information.
5701 SelectorID &StoredID = SelectorIDs[S];
5702 if (ID > StoredID)
5703 StoredID = ID;
5704}
5705
5706void ASTWriter::MacroDefinitionRead(serialization::PreprocessedEntityID ID,
5707 MacroDefinitionRecord *MD) {
5708 assert(MacroDefinitions.find(MD) == MacroDefinitions.end())((MacroDefinitions.find(MD) == MacroDefinitions.end()) ? static_cast
<void> (0) : __assert_fail ("MacroDefinitions.find(MD) == MacroDefinitions.end()"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5708, __PRETTY_FUNCTION__))
;
5709 MacroDefinitions[MD] = ID;
5710}
5711
5712void ASTWriter::ModuleRead(serialization::SubmoduleID ID, Module *Mod) {
5713 assert(SubmoduleIDs.find(Mod) == SubmoduleIDs.end())((SubmoduleIDs.find(Mod) == SubmoduleIDs.end()) ? static_cast
<void> (0) : __assert_fail ("SubmoduleIDs.find(Mod) == SubmoduleIDs.end()"
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5713, __PRETTY_FUNCTION__))
;
5714 SubmoduleIDs[Mod] = ID;
5715}
5716
5717void ASTWriter::CompletedTagDefinition(const TagDecl *D) {
5718 if (Chain && Chain->isProcessingUpdateRecords()) return;
5719 assert(D->isCompleteDefinition())((D->isCompleteDefinition()) ? static_cast<void> (0)
: __assert_fail ("D->isCompleteDefinition()", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5719, __PRETTY_FUNCTION__))
;
5720 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5720, __PRETTY_FUNCTION__))
;
5721 if (auto *RD = dyn_cast<CXXRecordDecl>(D)) {
5722 // We are interested when a PCH decl is modified.
5723 if (RD->isFromASTFile()) {
5724 // A forward reference was mutated into a definition. Rewrite it.
5725 // FIXME: This happens during template instantiation, should we
5726 // have created a new definition decl instead ?
5727 assert(isTemplateInstantiation(RD->getTemplateSpecializationKind()) &&((isTemplateInstantiation(RD->getTemplateSpecializationKind
()) && "completed a tag from another module but not by instantiation?"
) ? static_cast<void> (0) : __assert_fail ("isTemplateInstantiation(RD->getTemplateSpecializationKind()) && \"completed a tag from another module but not by instantiation?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5728, __PRETTY_FUNCTION__))
5728 "completed a tag from another module but not by instantiation?")((isTemplateInstantiation(RD->getTemplateSpecializationKind
()) && "completed a tag from another module but not by instantiation?"
) ? static_cast<void> (0) : __assert_fail ("isTemplateInstantiation(RD->getTemplateSpecializationKind()) && \"completed a tag from another module but not by instantiation?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5728, __PRETTY_FUNCTION__))
;
5729 DeclUpdates[RD].push_back(
5730 DeclUpdate(UPD_CXX_INSTANTIATED_CLASS_DEFINITION));
5731 }
5732 }
5733}
5734
5735static bool isImportedDeclContext(ASTReader *Chain, const Decl *D) {
5736 if (D->isFromASTFile())
5737 return true;
5738
5739 // The predefined __va_list_tag struct is imported if we imported any decls.
5740 // FIXME: This is a gross hack.
5741 return D == D->getASTContext().getVaListTagDecl();
5742}
5743
5744void ASTWriter::AddedVisibleDecl(const DeclContext *DC, const Decl *D) {
5745 if (Chain && Chain->isProcessingUpdateRecords()) return;
5746 assert(DC->isLookupContext() &&((DC->isLookupContext() && "Should not add lookup results to non-lookup contexts!"
) ? static_cast<void> (0) : __assert_fail ("DC->isLookupContext() && \"Should not add lookup results to non-lookup contexts!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5747, __PRETTY_FUNCTION__))
5747 "Should not add lookup results to non-lookup contexts!")((DC->isLookupContext() && "Should not add lookup results to non-lookup contexts!"
) ? static_cast<void> (0) : __assert_fail ("DC->isLookupContext() && \"Should not add lookup results to non-lookup contexts!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5747, __PRETTY_FUNCTION__))
;
5748
5749 // TU is handled elsewhere.
5750 if (isa<TranslationUnitDecl>(DC))
5751 return;
5752
5753 // Namespaces are handled elsewhere, except for template instantiations of
5754 // FunctionTemplateDecls in namespaces. We are interested in cases where the
5755 // local instantiations are added to an imported context. Only happens when
5756 // adding ADL lookup candidates, for example templated friends.
5757 if (isa<NamespaceDecl>(DC) && D->getFriendObjectKind() == Decl::FOK_None &&
5758 !isa<FunctionTemplateDecl>(D))
5759 return;
5760
5761 // We're only interested in cases where a local declaration is added to an
5762 // imported context.
5763 if (D->isFromASTFile() || !isImportedDeclContext(Chain, cast<Decl>(DC)))
5764 return;
5765
5766 assert(DC == DC->getPrimaryContext() && "added to non-primary context")((DC == DC->getPrimaryContext() && "added to non-primary context"
) ? static_cast<void> (0) : __assert_fail ("DC == DC->getPrimaryContext() && \"added to non-primary context\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5766, __PRETTY_FUNCTION__))
;
5767 assert(!getDefinitiveDeclContext(DC) && "DeclContext not definitive!")((!getDefinitiveDeclContext(DC) && "DeclContext not definitive!"
) ? static_cast<void> (0) : __assert_fail ("!getDefinitiveDeclContext(DC) && \"DeclContext not definitive!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5767, __PRETTY_FUNCTION__))
;
5768 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5768, __PRETTY_FUNCTION__))
;
5769 if (UpdatedDeclContexts.insert(DC) && !cast<Decl>(DC)->isFromASTFile()) {
5770 // We're adding a visible declaration to a predefined decl context. Ensure
5771 // that we write out all of its lookup results so we don't get a nasty
5772 // surprise when we try to emit its lookup table.
5773 for (auto *Child : DC->decls())
5774 DeclsToEmitEvenIfUnreferenced.push_back(Child);
5775 }
5776 DeclsToEmitEvenIfUnreferenced.push_back(D);
5777}
5778
5779void ASTWriter::AddedCXXImplicitMember(const CXXRecordDecl *RD, const Decl *D) {
5780 if (Chain && Chain->isProcessingUpdateRecords()) return;
5781 assert(D->isImplicit())((D->isImplicit()) ? static_cast<void> (0) : __assert_fail
("D->isImplicit()", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5781, __PRETTY_FUNCTION__))
;
5782
5783 // We're only interested in cases where a local declaration is added to an
5784 // imported context.
5785 if (D->isFromASTFile() || !isImportedDeclContext(Chain, RD))
5786 return;
5787
5788 if (!isa<CXXMethodDecl>(D))
5789 return;
5790
5791 // A decl coming from PCH was modified.
5792 assert(RD->isCompleteDefinition())((RD->isCompleteDefinition()) ? static_cast<void> (0
) : __assert_fail ("RD->isCompleteDefinition()", "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5792, __PRETTY_FUNCTION__))
;
5793 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5793, __PRETTY_FUNCTION__))
;
5794 DeclUpdates[RD].push_back(DeclUpdate(UPD_CXX_ADDED_IMPLICIT_MEMBER, D));
5795}
5796
5797void ASTWriter::ResolvedExceptionSpec(const FunctionDecl *FD) {
5798 if (Chain && Chain->isProcessingUpdateRecords()) return;
5799 assert(!DoneWritingDeclsAndTypes && "Already done writing updates!")((!DoneWritingDeclsAndTypes && "Already done writing updates!"
) ? static_cast<void> (0) : __assert_fail ("!DoneWritingDeclsAndTypes && \"Already done writing updates!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5799, __PRETTY_FUNCTION__))
;
5800 if (!Chain) return;
5801 Chain->forEachImportedKeyDecl(FD, [&](const Decl *D) {
5802 // If we don't already know the exception specification for this redecl
5803 // chain, add an update record for it.
5804 if (isUnresolvedExceptionSpec(cast<FunctionDecl>(D)
5805 ->getType()
5806 ->castAs<FunctionProtoType>()
5807 ->getExceptionSpecType()))
5808 DeclUpdates[D].push_back(UPD_CXX_RESOLVED_EXCEPTION_SPEC);
5809 });
5810}
5811
5812void ASTWriter::DeducedReturnType(const FunctionDecl *FD, QualType ReturnType) {
5813 if (Chain && Chain->isProcessingUpdateRecords()) return;
5814 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5814, __PRETTY_FUNCTION__))
;
5815 if (!Chain) return;
5816 Chain->forEachImportedKeyDecl(FD, [&](const Decl *D) {
5817 DeclUpdates[D].push_back(
5818 DeclUpdate(UPD_CXX_DEDUCED_RETURN_TYPE, ReturnType));
5819 });
5820}
5821
5822void ASTWriter::ResolvedOperatorDelete(const CXXDestructorDecl *DD,
5823 const FunctionDecl *Delete,
5824 Expr *ThisArg) {
5825 if (Chain && Chain->isProcessingUpdateRecords()) return;
5826 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5826, __PRETTY_FUNCTION__))
;
5827 assert(Delete && "Not given an operator delete")((Delete && "Not given an operator delete") ? static_cast
<void> (0) : __assert_fail ("Delete && \"Not given an operator delete\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5827, __PRETTY_FUNCTION__))
;
5828 if (!Chain) return;
5829 Chain->forEachImportedKeyDecl(DD, [&](const Decl *D) {
5830 DeclUpdates[D].push_back(DeclUpdate(UPD_CXX_RESOLVED_DTOR_DELETE, Delete));
5831 });
5832}
5833
5834void ASTWriter::CompletedImplicitDefinition(const FunctionDecl *D) {
5835 if (Chain && Chain->isProcessingUpdateRecords()) return;
5836 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5836, __PRETTY_FUNCTION__))
;
5837 if (!D->isFromASTFile())
5838 return; // Declaration not imported from PCH.
5839
5840 // Implicit function decl from a PCH was defined.
5841 DeclUpdates[D].push_back(DeclUpdate(UPD_CXX_ADDED_FUNCTION_DEFINITION));
5842}
5843
5844void ASTWriter::VariableDefinitionInstantiated(const VarDecl *D) {
5845 if (Chain && Chain->isProcessingUpdateRecords()) return;
5846 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5846, __PRETTY_FUNCTION__))
;
5847 if (!D->isFromASTFile())
5848 return;
5849
5850 DeclUpdates[D].push_back(DeclUpdate(UPD_CXX_ADDED_VAR_DEFINITION));
5851}
5852
5853void ASTWriter::FunctionDefinitionInstantiated(const FunctionDecl *D) {
5854 if (Chain && Chain->isProcessingUpdateRecords()) return;
5855 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5855, __PRETTY_FUNCTION__))
;
5856 if (!D->isFromASTFile())
5857 return;
5858
5859 DeclUpdates[D].push_back(DeclUpdate(UPD_CXX_ADDED_FUNCTION_DEFINITION));
5860}
5861
5862void ASTWriter::InstantiationRequested(const ValueDecl *D) {
5863 if (Chain && Chain->isProcessingUpdateRecords()) return;
5864 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5864, __PRETTY_FUNCTION__))
;
5865 if (!D->isFromASTFile())
5866 return;
5867
5868 // Since the actual instantiation is delayed, this really means that we need
5869 // to update the instantiation location.
5870 SourceLocation POI;
5871 if (auto *VD = dyn_cast<VarDecl>(D))
5872 POI = VD->getPointOfInstantiation();
5873 else
5874 POI = cast<FunctionDecl>(D)->getPointOfInstantiation();
5875 DeclUpdates[D].push_back(DeclUpdate(UPD_CXX_POINT_OF_INSTANTIATION, POI));
5876}
5877
5878void ASTWriter::DefaultArgumentInstantiated(const ParmVarDecl *D) {
5879 if (Chain && Chain->isProcessingUpdateRecords()) return;
5880 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5880, __PRETTY_FUNCTION__))
;
5881 if (!D->isFromASTFile())
5882 return;
5883
5884 DeclUpdates[D].push_back(
5885 DeclUpdate(UPD_CXX_INSTANTIATED_DEFAULT_ARGUMENT, D));
5886}
5887
5888void ASTWriter::DefaultMemberInitializerInstantiated(const FieldDecl *D) {
5889 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5889, __PRETTY_FUNCTION__))
;
5890 if (!D->isFromASTFile())
5891 return;
5892
5893 DeclUpdates[D].push_back(
5894 DeclUpdate(UPD_CXX_INSTANTIATED_DEFAULT_MEMBER_INITIALIZER, D));
5895}
5896
5897void ASTWriter::AddedObjCCategoryToInterface(const ObjCCategoryDecl *CatD,
5898 const ObjCInterfaceDecl *IFD) {
5899 if (Chain && Chain->isProcessingUpdateRecords()) return;
5900 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5900, __PRETTY_FUNCTION__))
;
5901 if (!IFD->isFromASTFile())
5902 return; // Declaration not imported from PCH.
5903
5904 assert(IFD->getDefinition() && "Category on a class without a definition?")((IFD->getDefinition() && "Category on a class without a definition?"
) ? static_cast<void> (0) : __assert_fail ("IFD->getDefinition() && \"Category on a class without a definition?\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5904, __PRETTY_FUNCTION__))
;
5905 ObjCClassesWithCategories.insert(
5906 const_cast<ObjCInterfaceDecl *>(IFD->getDefinition()));
5907}
5908
5909void ASTWriter::DeclarationMarkedUsed(const Decl *D) {
5910 if (Chain && Chain->isProcessingUpdateRecords()) return;
5911 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5911, __PRETTY_FUNCTION__))
;
5912
5913 // If there is *any* declaration of the entity that's not from an AST file,
5914 // we can skip writing the update record. We make sure that isUsed() triggers
5915 // completion of the redeclaration chain of the entity.
5916 for (auto Prev = D->getMostRecentDecl(); Prev; Prev = Prev->getPreviousDecl())
5917 if (IsLocalDecl(Prev))
5918 return;
5919
5920 DeclUpdates[D].push_back(DeclUpdate(UPD_DECL_MARKED_USED));
5921}
5922
5923void ASTWriter::DeclarationMarkedOpenMPThreadPrivate(const Decl *D) {
5924 if (Chain && Chain->isProcessingUpdateRecords()) return;
5925 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5925, __PRETTY_FUNCTION__))
;
5926 if (!D->isFromASTFile())
5927 return;
5928
5929 DeclUpdates[D].push_back(DeclUpdate(UPD_DECL_MARKED_OPENMP_THREADPRIVATE));
5930}
5931
5932void ASTWriter::DeclarationMarkedOpenMPAllocate(const Decl *D, const Attr *A) {
5933 if (Chain && Chain->isProcessingUpdateRecords()) return;
5934 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5934, __PRETTY_FUNCTION__))
;
5935 if (!D->isFromASTFile())
5936 return;
5937
5938 DeclUpdates[D].push_back(DeclUpdate(UPD_DECL_MARKED_OPENMP_ALLOCATE, A));
5939}
5940
5941void ASTWriter::DeclarationMarkedOpenMPDeclareTarget(const Decl *D,
5942 const Attr *Attr) {
5943 if (Chain && Chain->isProcessingUpdateRecords()) return;
5944 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5944, __PRETTY_FUNCTION__))
;
5945 if (!D->isFromASTFile())
5946 return;
5947
5948 DeclUpdates[D].push_back(
5949 DeclUpdate(UPD_DECL_MARKED_OPENMP_DECLARETARGET, Attr));
5950}
5951
5952void ASTWriter::RedefinedHiddenDefinition(const NamedDecl *D, Module *M) {
5953 if (Chain && Chain->isProcessingUpdateRecords()) return;
5954 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5954, __PRETTY_FUNCTION__))
;
5955 assert(D->isHidden() && "expected a hidden declaration")((D->isHidden() && "expected a hidden declaration"
) ? static_cast<void> (0) : __assert_fail ("D->isHidden() && \"expected a hidden declaration\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5955, __PRETTY_FUNCTION__))
;
5956 DeclUpdates[D].push_back(DeclUpdate(UPD_DECL_EXPORTED, M));
5957}
5958
5959void ASTWriter::AddedAttributeToRecord(const Attr *Attr,
5960 const RecordDecl *Record) {
5961 if (Chain && Chain->isProcessingUpdateRecords()) return;
5962 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5962, __PRETTY_FUNCTION__))
;
5963 if (!Record->isFromASTFile())
5964 return;
5965 DeclUpdates[Record].push_back(DeclUpdate(UPD_ADDED_ATTR_TO_RECORD, Attr));
5966}
5967
5968void ASTWriter::AddedCXXTemplateSpecialization(
5969 const ClassTemplateDecl *TD, const ClassTemplateSpecializationDecl *D) {
5970 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5970, __PRETTY_FUNCTION__))
;
5971
5972 if (!TD->getFirstDecl()->isFromASTFile())
5973 return;
5974 if (Chain && Chain->isProcessingUpdateRecords())
5975 return;
5976
5977 DeclsToEmitEvenIfUnreferenced.push_back(D);
5978}
5979
5980void ASTWriter::AddedCXXTemplateSpecialization(
5981 const VarTemplateDecl *TD, const VarTemplateSpecializationDecl *D) {
5982 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5982, __PRETTY_FUNCTION__))
;
5983
5984 if (!TD->getFirstDecl()->isFromASTFile())
5985 return;
5986 if (Chain && Chain->isProcessingUpdateRecords())
5987 return;
5988
5989 DeclsToEmitEvenIfUnreferenced.push_back(D);
5990}
5991
5992void ASTWriter::AddedCXXTemplateSpecialization(const FunctionTemplateDecl *TD,
5993 const FunctionDecl *D) {
5994 assert(!WritingAST && "Already writing the AST!")((!WritingAST && "Already writing the AST!") ? static_cast
<void> (0) : __assert_fail ("!WritingAST && \"Already writing the AST!\""
, "/build/llvm-toolchain-snapshot-10~++20200112100611+7fa5290d5bd/clang/lib/Serialization/ASTWriter.cpp"
, 5994, __PRETTY_FUNCTION__))
;
5995
5996 if (!TD->getFirstDecl()->isFromASTFile())
5997 return;
5998 if (Chain && Chain->isProcessingUpdateRecords())
5999 return;
6000
6001 DeclsToEmitEvenIfUnreferenced.push_back(D);
6002}
6003
6004//===----------------------------------------------------------------------===//
6005//// OMPClause Serialization
6006////===----------------------------------------------------------------------===//
6007
6008namespace {
6009
6010class OMPClauseWriter : public OMPClauseVisitor<OMPClauseWriter> {
6011 ASTRecordWriter &Record;
6012
6013public:
6014 OMPClauseWriter(ASTRecordWriter &Record) : Record(Record) {}
6015#define OPENMP_CLAUSE(Name, Class) void Visit##Class(Class *S);
6016#include "clang/Basic/OpenMPKinds.def"
6017 void writeClause(OMPClause *C);
6018 void VisitOMPClauseWithPreInit(OMPClauseWithPreInit *C);
6019 void VisitOMPClauseWithPostUpdate(OMPClauseWithPostUpdate *C);
6020};
6021
6022}
6023
6024void ASTRecordWriter::writeOMPClause(OMPClause *C) {
6025 OMPClauseWriter(*this).writeClause(C);
6026}
6027
6028void OMPClauseWriter::writeClause(OMPClause *C) {
6029 Record.push_back(C->getClauseKind());
6030 Visit(C);
6031 Record.AddSourceLocation(C->getBeginLoc());
6032 Record.AddSourceLocation(C->getEndLoc());
6033}
6034
6035void OMPClauseWriter::VisitOMPClauseWithPreInit(OMPClauseWithPreInit *C) {
6036 Record.push_back(uint64_t(C->getCaptureRegion()));
6037 Record.AddStmt(C->getPreInitStmt());
6038}
6039
6040void OMPClauseWriter::VisitOMPClauseWithPostUpdate(OMPClauseWithPostUpdate *C) {
6041 VisitOMPClauseWithPreInit(C);
6042 Record.AddStmt(C->getPostUpdateExpr());
6043}
6044
6045void OMPClauseWriter::VisitOMPIfClause(OMPIfClause *C) {
6046 VisitOMPClauseWithPreInit(C);
6047 Record.push_back(uint64_t(C->getNameModifier()));
6048 Record.AddSourceLocation(C->getNameModifierLoc());
6049 Record.AddSourceLocation(C->getColonLoc());
6050 Record.AddStmt(C->getCondition());
6051 Record.AddSourceLocation(C->getLParenLoc());
6052}
6053
6054void OMPClauseWriter::VisitOMPFinalClause(OMPFinalClause *C) {
6055 VisitOMPClauseWithPreInit(C);
6056 Record.AddStmt(C->getCondition());
6057 Record.AddSourceLocation(C->getLParenLoc());
6058}
6059
6060void OMPClauseWriter::VisitOMPNumThreadsClause(OMPNumThreadsClause *C) {
6061 VisitOMPClauseWithPreInit(C);