Bug Summary

File:clang/lib/Serialization/ASTWriter.cpp
Warning:line 1795, column 7
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-11/lib/clang/11.0.0 -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-11~++20200309111110+2c36c23f347/build-llvm/tools/clang/lib/Serialization -I /build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization -I /build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/include -I /build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/build-llvm/tools/clang/include -I /build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/build-llvm/include -I /build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/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-11/lib/clang/11.0.0/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-11~++20200309111110+2c36c23f347/build-llvm/tools/clang/lib/Serialization -fdebug-prefix-map=/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347=. -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-2020-03-09-184146-41876-1 -x c++ /build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 143)
;
144 }
145 llvm_unreachable("bad type kind")::llvm::llvm_unreachable_internal("bad type kind", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/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 Record.push_back(TL.isConstrained());
353 if (TL.isConstrained()) {
354 Record.AddNestedNameSpecifierLoc(TL.getNestedNameSpecifierLoc());
355 Record.AddSourceLocation(TL.getTemplateKWLoc());
356 Record.AddSourceLocation(TL.getConceptNameLoc());
357 Record.AddDeclRef(TL.getFoundDecl());
358 Record.AddSourceLocation(TL.getLAngleLoc());
359 Record.AddSourceLocation(TL.getRAngleLoc());
360 for (unsigned I = 0; I < TL.getNumArgs(); ++I)
361 Record.AddTemplateArgumentLocInfo(TL.getTypePtr()->getArg(I).getKind(),
362 TL.getArgLocInfo(I));
363 }
364}
365
366void TypeLocWriter::VisitDeducedTemplateSpecializationTypeLoc(
367 DeducedTemplateSpecializationTypeLoc TL) {
368 Record.AddSourceLocation(TL.getTemplateNameLoc());
369}
370
371void TypeLocWriter::VisitRecordTypeLoc(RecordTypeLoc TL) {
372 Record.AddSourceLocation(TL.getNameLoc());
373}
374
375void TypeLocWriter::VisitEnumTypeLoc(EnumTypeLoc TL) {
376 Record.AddSourceLocation(TL.getNameLoc());
377}
378
379void TypeLocWriter::VisitAttributedTypeLoc(AttributedTypeLoc TL) {
380 Record.AddAttr(TL.getAttr());
381}
382
383void TypeLocWriter::VisitTemplateTypeParmTypeLoc(TemplateTypeParmTypeLoc TL) {
384 Record.AddSourceLocation(TL.getNameLoc());
385}
386
387void TypeLocWriter::VisitSubstTemplateTypeParmTypeLoc(
388 SubstTemplateTypeParmTypeLoc TL) {
389 Record.AddSourceLocation(TL.getNameLoc());
390}
391
392void TypeLocWriter::VisitSubstTemplateTypeParmPackTypeLoc(
393 SubstTemplateTypeParmPackTypeLoc TL) {
394 Record.AddSourceLocation(TL.getNameLoc());
395}
396
397void TypeLocWriter::VisitTemplateSpecializationTypeLoc(
398 TemplateSpecializationTypeLoc TL) {
399 Record.AddSourceLocation(TL.getTemplateKeywordLoc());
400 Record.AddSourceLocation(TL.getTemplateNameLoc());
401 Record.AddSourceLocation(TL.getLAngleLoc());
402 Record.AddSourceLocation(TL.getRAngleLoc());
403 for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i)
404 Record.AddTemplateArgumentLocInfo(TL.getArgLoc(i).getArgument().getKind(),
405 TL.getArgLoc(i).getLocInfo());
406}
407
408void TypeLocWriter::VisitParenTypeLoc(ParenTypeLoc TL) {
409 Record.AddSourceLocation(TL.getLParenLoc());
410 Record.AddSourceLocation(TL.getRParenLoc());
411}
412
413void TypeLocWriter::VisitMacroQualifiedTypeLoc(MacroQualifiedTypeLoc TL) {
414 Record.AddSourceLocation(TL.getExpansionLoc());
415}
416
417void TypeLocWriter::VisitElaboratedTypeLoc(ElaboratedTypeLoc TL) {
418 Record.AddSourceLocation(TL.getElaboratedKeywordLoc());
419 Record.AddNestedNameSpecifierLoc(TL.getQualifierLoc());
420}
421
422void TypeLocWriter::VisitInjectedClassNameTypeLoc(InjectedClassNameTypeLoc TL) {
423 Record.AddSourceLocation(TL.getNameLoc());
424}
425
426void TypeLocWriter::VisitDependentNameTypeLoc(DependentNameTypeLoc TL) {
427 Record.AddSourceLocation(TL.getElaboratedKeywordLoc());
428 Record.AddNestedNameSpecifierLoc(TL.getQualifierLoc());
429 Record.AddSourceLocation(TL.getNameLoc());
430}
431
432void TypeLocWriter::VisitDependentTemplateSpecializationTypeLoc(
433 DependentTemplateSpecializationTypeLoc TL) {
434 Record.AddSourceLocation(TL.getElaboratedKeywordLoc());
435 Record.AddNestedNameSpecifierLoc(TL.getQualifierLoc());
436 Record.AddSourceLocation(TL.getTemplateKeywordLoc());
437 Record.AddSourceLocation(TL.getTemplateNameLoc());
438 Record.AddSourceLocation(TL.getLAngleLoc());
439 Record.AddSourceLocation(TL.getRAngleLoc());
440 for (unsigned I = 0, E = TL.getNumArgs(); I != E; ++I)
441 Record.AddTemplateArgumentLocInfo(TL.getArgLoc(I).getArgument().getKind(),
442 TL.getArgLoc(I).getLocInfo());
443}
444
445void TypeLocWriter::VisitPackExpansionTypeLoc(PackExpansionTypeLoc TL) {
446 Record.AddSourceLocation(TL.getEllipsisLoc());
447}
448
449void TypeLocWriter::VisitObjCInterfaceTypeLoc(ObjCInterfaceTypeLoc TL) {
450 Record.AddSourceLocation(TL.getNameLoc());
451}
452
453void TypeLocWriter::VisitObjCObjectTypeLoc(ObjCObjectTypeLoc TL) {
454 Record.push_back(TL.hasBaseTypeAsWritten());
455 Record.AddSourceLocation(TL.getTypeArgsLAngleLoc());
456 Record.AddSourceLocation(TL.getTypeArgsRAngleLoc());
457 for (unsigned i = 0, e = TL.getNumTypeArgs(); i != e; ++i)
458 Record.AddTypeSourceInfo(TL.getTypeArgTInfo(i));
459 Record.AddSourceLocation(TL.getProtocolLAngleLoc());
460 Record.AddSourceLocation(TL.getProtocolRAngleLoc());
461 for (unsigned i = 0, e = TL.getNumProtocols(); i != e; ++i)
462 Record.AddSourceLocation(TL.getProtocolLoc(i));
463}
464
465void TypeLocWriter::VisitObjCObjectPointerTypeLoc(ObjCObjectPointerTypeLoc TL) {
466 Record.AddSourceLocation(TL.getStarLoc());
467}
468
469void TypeLocWriter::VisitAtomicTypeLoc(AtomicTypeLoc TL) {
470 Record.AddSourceLocation(TL.getKWLoc());
471 Record.AddSourceLocation(TL.getLParenLoc());
472 Record.AddSourceLocation(TL.getRParenLoc());
473}
474
475void TypeLocWriter::VisitPipeTypeLoc(PipeTypeLoc TL) {
476 Record.AddSourceLocation(TL.getKWLoc());
477}
478
479void ASTWriter::WriteTypeAbbrevs() {
480 using namespace llvm;
481
482 std::shared_ptr<BitCodeAbbrev> Abv;
483
484 // Abbreviation for TYPE_EXT_QUAL
485 Abv = std::make_shared<BitCodeAbbrev>();
486 Abv->Add(BitCodeAbbrevOp(serialization::TYPE_EXT_QUAL));
487 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Type
488 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 3)); // Quals
489 TypeExtQualAbbrev = Stream.EmitAbbrev(std::move(Abv));
490
491 // Abbreviation for TYPE_FUNCTION_PROTO
492 Abv = std::make_shared<BitCodeAbbrev>();
493 Abv->Add(BitCodeAbbrevOp(serialization::TYPE_FUNCTION_PROTO));
494 // FunctionType
495 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ReturnType
496 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // NoReturn
497 Abv->Add(BitCodeAbbrevOp(0)); // HasRegParm
498 Abv->Add(BitCodeAbbrevOp(0)); // RegParm
499 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // CC
500 Abv->Add(BitCodeAbbrevOp(0)); // ProducesResult
501 Abv->Add(BitCodeAbbrevOp(0)); // NoCallerSavedRegs
502 Abv->Add(BitCodeAbbrevOp(0)); // NoCfCheck
503 // FunctionProtoType
504 Abv->Add(BitCodeAbbrevOp(0)); // IsVariadic
505 Abv->Add(BitCodeAbbrevOp(0)); // HasTrailingReturn
506 Abv->Add(BitCodeAbbrevOp(0)); // TypeQuals
507 Abv->Add(BitCodeAbbrevOp(0)); // RefQualifier
508 Abv->Add(BitCodeAbbrevOp(EST_None)); // ExceptionSpec
509 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // NumParams
510 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Array));
511 Abv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Params
512 TypeFunctionProtoAbbrev = Stream.EmitAbbrev(std::move(Abv));
513}
514
515//===----------------------------------------------------------------------===//
516// ASTWriter Implementation
517//===----------------------------------------------------------------------===//
518
519static void EmitBlockID(unsigned ID, const char *Name,
520 llvm::BitstreamWriter &Stream,
521 ASTWriter::RecordDataImpl &Record) {
522 Record.clear();
523 Record.push_back(ID);
524 Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_SETBID, Record);
525
526 // Emit the block name if present.
527 if (!Name || Name[0] == 0)
528 return;
529 Record.clear();
530 while (*Name)
531 Record.push_back(*Name++);
532 Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_BLOCKNAME, Record);
533}
534
535static void EmitRecordID(unsigned ID, const char *Name,
536 llvm::BitstreamWriter &Stream,
537 ASTWriter::RecordDataImpl &Record) {
538 Record.clear();
539 Record.push_back(ID);
540 while (*Name)
541 Record.push_back(*Name++);
542 Stream.EmitRecord(llvm::bitc::BLOCKINFO_CODE_SETRECORDNAME, Record);
543}
544
545static void AddStmtsExprs(llvm::BitstreamWriter &Stream,
546 ASTWriter::RecordDataImpl &Record) {
547#define RECORD(X) EmitRecordID(X, #X, Stream, Record)
548 RECORD(STMT_STOP);
549 RECORD(STMT_NULL_PTR);
550 RECORD(STMT_REF_PTR);
551 RECORD(STMT_NULL);
552 RECORD(STMT_COMPOUND);
553 RECORD(STMT_CASE);
554 RECORD(STMT_DEFAULT);
555 RECORD(STMT_LABEL);
556 RECORD(STMT_ATTRIBUTED);
557 RECORD(STMT_IF);
558 RECORD(STMT_SWITCH);
559 RECORD(STMT_WHILE);
560 RECORD(STMT_DO);
561 RECORD(STMT_FOR);
562 RECORD(STMT_GOTO);
563 RECORD(STMT_INDIRECT_GOTO);
564 RECORD(STMT_CONTINUE);
565 RECORD(STMT_BREAK);
566 RECORD(STMT_RETURN);
567 RECORD(STMT_DECL);
568 RECORD(STMT_GCCASM);
569 RECORD(STMT_MSASM);
570 RECORD(EXPR_PREDEFINED);
571 RECORD(EXPR_DECL_REF);
572 RECORD(EXPR_INTEGER_LITERAL);
573 RECORD(EXPR_FLOATING_LITERAL);
574 RECORD(EXPR_IMAGINARY_LITERAL);
575 RECORD(EXPR_STRING_LITERAL);
576 RECORD(EXPR_CHARACTER_LITERAL);
577 RECORD(EXPR_PAREN);
578 RECORD(EXPR_PAREN_LIST);
579 RECORD(EXPR_UNARY_OPERATOR);
580 RECORD(EXPR_SIZEOF_ALIGN_OF);
581 RECORD(EXPR_ARRAY_SUBSCRIPT);
582 RECORD(EXPR_CALL);
583 RECORD(EXPR_MEMBER);
584 RECORD(EXPR_BINARY_OPERATOR);
585 RECORD(EXPR_COMPOUND_ASSIGN_OPERATOR);
586 RECORD(EXPR_CONDITIONAL_OPERATOR);
587 RECORD(EXPR_IMPLICIT_CAST);
588 RECORD(EXPR_CSTYLE_CAST);
589 RECORD(EXPR_COMPOUND_LITERAL);
590 RECORD(EXPR_EXT_VECTOR_ELEMENT);
591 RECORD(EXPR_INIT_LIST);
592 RECORD(EXPR_DESIGNATED_INIT);
593 RECORD(EXPR_DESIGNATED_INIT_UPDATE);
594 RECORD(EXPR_IMPLICIT_VALUE_INIT);
595 RECORD(EXPR_NO_INIT);
596 RECORD(EXPR_VA_ARG);
597 RECORD(EXPR_ADDR_LABEL);
598 RECORD(EXPR_STMT);
599 RECORD(EXPR_CHOOSE);
600 RECORD(EXPR_GNU_NULL);
601 RECORD(EXPR_SHUFFLE_VECTOR);
602 RECORD(EXPR_BLOCK);
603 RECORD(EXPR_GENERIC_SELECTION);
604 RECORD(EXPR_OBJC_STRING_LITERAL);
605 RECORD(EXPR_OBJC_BOXED_EXPRESSION);
606 RECORD(EXPR_OBJC_ARRAY_LITERAL);
607 RECORD(EXPR_OBJC_DICTIONARY_LITERAL);
608 RECORD(EXPR_OBJC_ENCODE);
609 RECORD(EXPR_OBJC_SELECTOR_EXPR);
610 RECORD(EXPR_OBJC_PROTOCOL_EXPR);
611 RECORD(EXPR_OBJC_IVAR_REF_EXPR);
612 RECORD(EXPR_OBJC_PROPERTY_REF_EXPR);
613 RECORD(EXPR_OBJC_KVC_REF_EXPR);
614 RECORD(EXPR_OBJC_MESSAGE_EXPR);
615 RECORD(STMT_OBJC_FOR_COLLECTION);
616 RECORD(STMT_OBJC_CATCH);
617 RECORD(STMT_OBJC_FINALLY);
618 RECORD(STMT_OBJC_AT_TRY);
619 RECORD(STMT_OBJC_AT_SYNCHRONIZED);
620 RECORD(STMT_OBJC_AT_THROW);
621 RECORD(EXPR_OBJC_BOOL_LITERAL);
622 RECORD(STMT_CXX_CATCH);
623 RECORD(STMT_CXX_TRY);
624 RECORD(STMT_CXX_FOR_RANGE);
625 RECORD(EXPR_CXX_OPERATOR_CALL);
626 RECORD(EXPR_CXX_MEMBER_CALL);
627 RECORD(EXPR_CXX_REWRITTEN_BINARY_OPERATOR);
628 RECORD(EXPR_CXX_CONSTRUCT);
629 RECORD(EXPR_CXX_TEMPORARY_OBJECT);
630 RECORD(EXPR_CXX_STATIC_CAST);
631 RECORD(EXPR_CXX_DYNAMIC_CAST);
632 RECORD(EXPR_CXX_REINTERPRET_CAST);
633 RECORD(EXPR_CXX_CONST_CAST);
634 RECORD(EXPR_CXX_FUNCTIONAL_CAST);
635 RECORD(EXPR_USER_DEFINED_LITERAL);
636 RECORD(EXPR_CXX_STD_INITIALIZER_LIST);
637 RECORD(EXPR_CXX_BOOL_LITERAL);
638 RECORD(EXPR_CXX_NULL_PTR_LITERAL);
639 RECORD(EXPR_CXX_TYPEID_EXPR);
640 RECORD(EXPR_CXX_TYPEID_TYPE);
641 RECORD(EXPR_CXX_THIS);
642 RECORD(EXPR_CXX_THROW);
643 RECORD(EXPR_CXX_DEFAULT_ARG);
644 RECORD(EXPR_CXX_DEFAULT_INIT);
645 RECORD(EXPR_CXX_BIND_TEMPORARY);
646 RECORD(EXPR_CXX_SCALAR_VALUE_INIT);
647 RECORD(EXPR_CXX_NEW);
648 RECORD(EXPR_CXX_DELETE);
649 RECORD(EXPR_CXX_PSEUDO_DESTRUCTOR);
650 RECORD(EXPR_EXPR_WITH_CLEANUPS);
651 RECORD(EXPR_CXX_DEPENDENT_SCOPE_MEMBER);
652 RECORD(EXPR_CXX_DEPENDENT_SCOPE_DECL_REF);
653 RECORD(EXPR_CXX_UNRESOLVED_CONSTRUCT);
654 RECORD(EXPR_CXX_UNRESOLVED_MEMBER);
655 RECORD(EXPR_CXX_UNRESOLVED_LOOKUP);
656 RECORD(EXPR_CXX_EXPRESSION_TRAIT);
657 RECORD(EXPR_CXX_NOEXCEPT);
658 RECORD(EXPR_OPAQUE_VALUE);
659 RECORD(EXPR_BINARY_CONDITIONAL_OPERATOR);
660 RECORD(EXPR_TYPE_TRAIT);
661 RECORD(EXPR_ARRAY_TYPE_TRAIT);
662 RECORD(EXPR_PACK_EXPANSION);
663 RECORD(EXPR_SIZEOF_PACK);
664 RECORD(EXPR_SUBST_NON_TYPE_TEMPLATE_PARM);
665 RECORD(EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK);
666 RECORD(EXPR_FUNCTION_PARM_PACK);
667 RECORD(EXPR_MATERIALIZE_TEMPORARY);
668 RECORD(EXPR_CUDA_KERNEL_CALL);
669 RECORD(EXPR_CXX_UUIDOF_EXPR);
670 RECORD(EXPR_CXX_UUIDOF_TYPE);
671 RECORD(EXPR_LAMBDA);
672#undef RECORD
673}
674
675void ASTWriter::WriteBlockInfoBlock() {
676 RecordData Record;
677 Stream.EnterBlockInfoBlock();
678
679#define BLOCK(X) EmitBlockID(X ## _ID, #X, Stream, Record)
680#define RECORD(X) EmitRecordID(X, #X, Stream, Record)
681
682 // Control Block.
683 BLOCK(CONTROL_BLOCK);
684 RECORD(METADATA);
685 RECORD(MODULE_NAME);
686 RECORD(MODULE_DIRECTORY);
687 RECORD(MODULE_MAP_FILE);
688 RECORD(IMPORTS);
689 RECORD(ORIGINAL_FILE);
690 RECORD(ORIGINAL_PCH_DIR);
691 RECORD(ORIGINAL_FILE_ID);
692 RECORD(INPUT_FILE_OFFSETS);
693
694 BLOCK(OPTIONS_BLOCK);
695 RECORD(LANGUAGE_OPTIONS);
696 RECORD(TARGET_OPTIONS);
697 RECORD(FILE_SYSTEM_OPTIONS);
698 RECORD(HEADER_SEARCH_OPTIONS);
699 RECORD(PREPROCESSOR_OPTIONS);
700
701 BLOCK(INPUT_FILES_BLOCK);
702 RECORD(INPUT_FILE);
703 RECORD(INPUT_FILE_HASH);
704
705 // AST Top-Level Block.
706 BLOCK(AST_BLOCK);
707 RECORD(TYPE_OFFSET);
708 RECORD(DECL_OFFSET);
709 RECORD(IDENTIFIER_OFFSET);
710 RECORD(IDENTIFIER_TABLE);
711 RECORD(EAGERLY_DESERIALIZED_DECLS);
712 RECORD(MODULAR_CODEGEN_DECLS);
713 RECORD(SPECIAL_TYPES);
714 RECORD(STATISTICS);
715 RECORD(TENTATIVE_DEFINITIONS);
716 RECORD(SELECTOR_OFFSETS);
717 RECORD(METHOD_POOL);
718 RECORD(PP_COUNTER_VALUE);
719 RECORD(SOURCE_LOCATION_OFFSETS);
720 RECORD(SOURCE_LOCATION_PRELOADS);
721 RECORD(EXT_VECTOR_DECLS);
722 RECORD(UNUSED_FILESCOPED_DECLS);
723 RECORD(PPD_ENTITIES_OFFSETS);
724 RECORD(VTABLE_USES);
725 RECORD(PPD_SKIPPED_RANGES);
726 RECORD(REFERENCED_SELECTOR_POOL);
727 RECORD(TU_UPDATE_LEXICAL);
728 RECORD(SEMA_DECL_REFS);
729 RECORD(WEAK_UNDECLARED_IDENTIFIERS);
730 RECORD(PENDING_IMPLICIT_INSTANTIATIONS);
731 RECORD(UPDATE_VISIBLE);
732 RECORD(DECL_UPDATE_OFFSETS);
733 RECORD(DECL_UPDATES);
734 RECORD(CUDA_SPECIAL_DECL_REFS);
735 RECORD(HEADER_SEARCH_TABLE);
736 RECORD(FP_PRAGMA_OPTIONS);
737 RECORD(OPENCL_EXTENSIONS);
738 RECORD(OPENCL_EXTENSION_TYPES);
739 RECORD(OPENCL_EXTENSION_DECLS);
740 RECORD(DELEGATING_CTORS);
741 RECORD(KNOWN_NAMESPACES);
742 RECORD(MODULE_OFFSET_MAP);
743 RECORD(SOURCE_MANAGER_LINE_TABLE);
744 RECORD(OBJC_CATEGORIES_MAP);
745 RECORD(FILE_SORTED_DECLS);
746 RECORD(IMPORTED_MODULES);
747 RECORD(OBJC_CATEGORIES);
748 RECORD(MACRO_OFFSET);
749 RECORD(INTERESTING_IDENTIFIERS);
750 RECORD(UNDEFINED_BUT_USED);
751 RECORD(LATE_PARSED_TEMPLATE);
752 RECORD(OPTIMIZE_PRAGMA_OPTIONS);
753 RECORD(MSSTRUCT_PRAGMA_OPTIONS);
754 RECORD(POINTERS_TO_MEMBERS_PRAGMA_OPTIONS);
755 RECORD(UNUSED_LOCAL_TYPEDEF_NAME_CANDIDATES);
756 RECORD(DELETE_EXPRS_TO_ANALYZE);
757 RECORD(CUDA_PRAGMA_FORCE_HOST_DEVICE_DEPTH);
758 RECORD(PP_CONDITIONAL_STACK);
759
760 // SourceManager Block.
761 BLOCK(SOURCE_MANAGER_BLOCK);
762 RECORD(SM_SLOC_FILE_ENTRY);
763 RECORD(SM_SLOC_BUFFER_ENTRY);
764 RECORD(SM_SLOC_BUFFER_BLOB);
765 RECORD(SM_SLOC_BUFFER_BLOB_COMPRESSED);
766 RECORD(SM_SLOC_EXPANSION_ENTRY);
767
768 // Preprocessor Block.
769 BLOCK(PREPROCESSOR_BLOCK);
770 RECORD(PP_MACRO_DIRECTIVE_HISTORY);
771 RECORD(PP_MACRO_FUNCTION_LIKE);
772 RECORD(PP_MACRO_OBJECT_LIKE);
773 RECORD(PP_MODULE_MACRO);
774 RECORD(PP_TOKEN);
775
776 // Submodule Block.
777 BLOCK(SUBMODULE_BLOCK);
778 RECORD(SUBMODULE_METADATA);
779 RECORD(SUBMODULE_DEFINITION);
780 RECORD(SUBMODULE_UMBRELLA_HEADER);
781 RECORD(SUBMODULE_HEADER);
782 RECORD(SUBMODULE_TOPHEADER);
783 RECORD(SUBMODULE_UMBRELLA_DIR);
784 RECORD(SUBMODULE_IMPORTS);
785 RECORD(SUBMODULE_EXPORTS);
786 RECORD(SUBMODULE_REQUIRES);
787 RECORD(SUBMODULE_EXCLUDED_HEADER);
788 RECORD(SUBMODULE_LINK_LIBRARY);
789 RECORD(SUBMODULE_CONFIG_MACRO);
790 RECORD(SUBMODULE_CONFLICT);
791 RECORD(SUBMODULE_PRIVATE_HEADER);
792 RECORD(SUBMODULE_TEXTUAL_HEADER);
793 RECORD(SUBMODULE_PRIVATE_TEXTUAL_HEADER);
794 RECORD(SUBMODULE_INITIALIZERS);
795 RECORD(SUBMODULE_EXPORT_AS);
796
797 // Comments Block.
798 BLOCK(COMMENTS_BLOCK);
799 RECORD(COMMENTS_RAW_COMMENT);
800
801 // Decls and Types block.
802 BLOCK(DECLTYPES_BLOCK);
803 RECORD(TYPE_EXT_QUAL);
804 RECORD(TYPE_COMPLEX);
805 RECORD(TYPE_POINTER);
806 RECORD(TYPE_BLOCK_POINTER);
807 RECORD(TYPE_LVALUE_REFERENCE);
808 RECORD(TYPE_RVALUE_REFERENCE);
809 RECORD(TYPE_MEMBER_POINTER);
810 RECORD(TYPE_CONSTANT_ARRAY);
811 RECORD(TYPE_INCOMPLETE_ARRAY);
812 RECORD(TYPE_VARIABLE_ARRAY);
813 RECORD(TYPE_VECTOR);
814 RECORD(TYPE_EXT_VECTOR);
815 RECORD(TYPE_FUNCTION_NO_PROTO);
816 RECORD(TYPE_FUNCTION_PROTO);
817 RECORD(TYPE_TYPEDEF);
818 RECORD(TYPE_TYPEOF_EXPR);
819 RECORD(TYPE_TYPEOF);
820 RECORD(TYPE_RECORD);
821 RECORD(TYPE_ENUM);
822 RECORD(TYPE_OBJC_INTERFACE);
823 RECORD(TYPE_OBJC_OBJECT_POINTER);
824 RECORD(TYPE_DECLTYPE);
825 RECORD(TYPE_ELABORATED);
826 RECORD(TYPE_SUBST_TEMPLATE_TYPE_PARM);
827 RECORD(TYPE_UNRESOLVED_USING);
828 RECORD(TYPE_INJECTED_CLASS_NAME);
829 RECORD(TYPE_OBJC_OBJECT);
830 RECORD(TYPE_TEMPLATE_TYPE_PARM);
831 RECORD(TYPE_TEMPLATE_SPECIALIZATION);
832 RECORD(TYPE_DEPENDENT_NAME);
833 RECORD(TYPE_DEPENDENT_TEMPLATE_SPECIALIZATION);
834 RECORD(TYPE_DEPENDENT_SIZED_ARRAY);
835 RECORD(TYPE_PAREN);
836 RECORD(TYPE_MACRO_QUALIFIED);
837 RECORD(TYPE_PACK_EXPANSION);
838 RECORD(TYPE_ATTRIBUTED);
839 RECORD(TYPE_SUBST_TEMPLATE_TYPE_PARM_PACK);
840 RECORD(TYPE_AUTO);
841 RECORD(TYPE_UNARY_TRANSFORM);
842 RECORD(TYPE_ATOMIC);
843 RECORD(TYPE_DECAYED);
844 RECORD(TYPE_ADJUSTED);
845 RECORD(TYPE_OBJC_TYPE_PARAM);
846 RECORD(LOCAL_REDECLARATIONS);
847 RECORD(DECL_TYPEDEF);
848 RECORD(DECL_TYPEALIAS);
849 RECORD(DECL_ENUM);
850 RECORD(DECL_RECORD);
851 RECORD(DECL_ENUM_CONSTANT);
852 RECORD(DECL_FUNCTION);
853 RECORD(DECL_OBJC_METHOD);
854 RECORD(DECL_OBJC_INTERFACE);
855 RECORD(DECL_OBJC_PROTOCOL);
856 RECORD(DECL_OBJC_IVAR);
857 RECORD(DECL_OBJC_AT_DEFS_FIELD);
858 RECORD(DECL_OBJC_CATEGORY);
859 RECORD(DECL_OBJC_CATEGORY_IMPL);
860 RECORD(DECL_OBJC_IMPLEMENTATION);
861 RECORD(DECL_OBJC_COMPATIBLE_ALIAS);
862 RECORD(DECL_OBJC_PROPERTY);
863 RECORD(DECL_OBJC_PROPERTY_IMPL);
864 RECORD(DECL_FIELD);
865 RECORD(DECL_MS_PROPERTY);
866 RECORD(DECL_VAR);
867 RECORD(DECL_IMPLICIT_PARAM);
868 RECORD(DECL_PARM_VAR);
869 RECORD(DECL_FILE_SCOPE_ASM);
870 RECORD(DECL_BLOCK);
871 RECORD(DECL_CONTEXT_LEXICAL);
872 RECORD(DECL_CONTEXT_VISIBLE);
873 RECORD(DECL_NAMESPACE);
874 RECORD(DECL_NAMESPACE_ALIAS);
875 RECORD(DECL_USING);
876 RECORD(DECL_USING_SHADOW);
877 RECORD(DECL_USING_DIRECTIVE);
878 RECORD(DECL_UNRESOLVED_USING_VALUE);
879 RECORD(DECL_UNRESOLVED_USING_TYPENAME);
880 RECORD(DECL_LINKAGE_SPEC);
881 RECORD(DECL_CXX_RECORD);
882 RECORD(DECL_CXX_METHOD);
883 RECORD(DECL_CXX_CONSTRUCTOR);
884 RECORD(DECL_CXX_DESTRUCTOR);
885 RECORD(DECL_CXX_CONVERSION);
886 RECORD(DECL_ACCESS_SPEC);
887 RECORD(DECL_FRIEND);
888 RECORD(DECL_FRIEND_TEMPLATE);
889 RECORD(DECL_CLASS_TEMPLATE);
890 RECORD(DECL_CLASS_TEMPLATE_SPECIALIZATION);
891 RECORD(DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION);
892 RECORD(DECL_VAR_TEMPLATE);
893 RECORD(DECL_VAR_TEMPLATE_SPECIALIZATION);
894 RECORD(DECL_VAR_TEMPLATE_PARTIAL_SPECIALIZATION);
895 RECORD(DECL_FUNCTION_TEMPLATE);
896 RECORD(DECL_TEMPLATE_TYPE_PARM);
897 RECORD(DECL_NON_TYPE_TEMPLATE_PARM);
898 RECORD(DECL_TEMPLATE_TEMPLATE_PARM);
899 RECORD(DECL_CONCEPT);
900 RECORD(DECL_REQUIRES_EXPR_BODY);
901 RECORD(DECL_TYPE_ALIAS_TEMPLATE);
902 RECORD(DECL_STATIC_ASSERT);
903 RECORD(DECL_CXX_BASE_SPECIFIERS);
904 RECORD(DECL_CXX_CTOR_INITIALIZERS);
905 RECORD(DECL_INDIRECTFIELD);
906 RECORD(DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK);
907 RECORD(DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK);
908 RECORD(DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION);
909 RECORD(DECL_IMPORT);
910 RECORD(DECL_OMP_THREADPRIVATE);
911 RECORD(DECL_EMPTY);
912 RECORD(DECL_OBJC_TYPE_PARAM);
913 RECORD(DECL_OMP_CAPTUREDEXPR);
914 RECORD(DECL_PRAGMA_COMMENT);
915 RECORD(DECL_PRAGMA_DETECT_MISMATCH);
916 RECORD(DECL_OMP_DECLARE_REDUCTION);
917 RECORD(DECL_OMP_ALLOCATE);
918
919 // Statements and Exprs can occur in the Decls and Types block.
920 AddStmtsExprs(Stream, Record);
921
922 BLOCK(PREPROCESSOR_DETAIL_BLOCK);
923 RECORD(PPD_MACRO_EXPANSION);
924 RECORD(PPD_MACRO_DEFINITION);
925 RECORD(PPD_INCLUSION_DIRECTIVE);
926
927 // Decls and Types block.
928 BLOCK(EXTENSION_BLOCK);
929 RECORD(EXTENSION_METADATA);
930
931 BLOCK(UNHASHED_CONTROL_BLOCK);
932 RECORD(SIGNATURE);
933 RECORD(DIAGNOSTIC_OPTIONS);
934 RECORD(DIAG_PRAGMA_MAPPINGS);
935
936#undef RECORD
937#undef BLOCK
938 Stream.ExitBlock();
939}
940
941/// Prepares a path for being written to an AST file by converting it
942/// to an absolute path and removing nested './'s.
943///
944/// \return \c true if the path was changed.
945static bool cleanPathForOutput(FileManager &FileMgr,
946 SmallVectorImpl<char> &Path) {
947 bool Changed = FileMgr.makeAbsolutePath(Path);
948 return Changed | llvm::sys::path::remove_dots(Path);
949}
950
951/// Adjusts the given filename to only write out the portion of the
952/// filename that is not part of the system root directory.
953///
954/// \param Filename the file name to adjust.
955///
956/// \param BaseDir When non-NULL, the PCH file is a relocatable AST file and
957/// the returned filename will be adjusted by this root directory.
958///
959/// \returns either the original filename (if it needs no adjustment) or the
960/// adjusted filename (which points into the @p Filename parameter).
961static const char *
962adjustFilenameForRelocatableAST(const char *Filename, StringRef BaseDir) {
963 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 963, __PRETTY_FUNCTION__))
;
964
965 if (BaseDir.empty())
966 return Filename;
967
968 // Verify that the filename and the system root have the same prefix.
969 unsigned Pos = 0;
970 for (; Filename[Pos] && Pos < BaseDir.size(); ++Pos)
971 if (Filename[Pos] != BaseDir[Pos])
972 return Filename; // Prefixes don't match.
973
974 // We hit the end of the filename before we hit the end of the system root.
975 if (!Filename[Pos])
976 return Filename;
977
978 // If there's not a path separator at the end of the base directory nor
979 // immediately after it, then this isn't within the base directory.
980 if (!llvm::sys::path::is_separator(Filename[Pos])) {
981 if (!llvm::sys::path::is_separator(BaseDir.back()))
982 return Filename;
983 } else {
984 // If the file name has a '/' at the current position, skip over the '/'.
985 // We distinguish relative paths from absolute paths by the
986 // absence of '/' at the beginning of relative paths.
987 //
988 // FIXME: This is wrong. We distinguish them by asking if the path is
989 // absolute, which isn't the same thing. And there might be multiple '/'s
990 // in a row. Use a better mechanism to indicate whether we have emitted an
991 // absolute or relative path.
992 ++Pos;
993 }
994
995 return Filename + Pos;
996}
997
998ASTFileSignature ASTWriter::createSignature(StringRef Bytes) {
999 // Calculate the hash till start of UNHASHED_CONTROL_BLOCK.
1000 llvm::SHA1 Hasher;
1001 Hasher.update(ArrayRef<uint8_t>(Bytes.bytes_begin(), Bytes.size()));
1002 auto Hash = Hasher.result();
1003
1004 // Convert to an array [5*i32].
1005 ASTFileSignature Signature;
1006 auto LShift = [&](unsigned char Val, unsigned Shift) {
1007 return (uint32_t)Val << Shift;
1008 };
1009 for (int I = 0; I != 5; ++I)
1010 Signature[I] = LShift(Hash[I * 4 + 0], 24) | LShift(Hash[I * 4 + 1], 16) |
1011 LShift(Hash[I * 4 + 2], 8) | LShift(Hash[I * 4 + 3], 0);
1012
1013 return Signature;
1014}
1015
1016ASTFileSignature ASTWriter::writeUnhashedControlBlock(Preprocessor &PP,
1017 ASTContext &Context) {
1018 // Flush first to prepare the PCM hash (signature).
1019 Stream.FlushToWord();
1020 auto StartOfUnhashedControl = Stream.GetCurrentBitNo() >> 3;
1021
1022 // Enter the block and prepare to write records.
1023 RecordData Record;
1024 Stream.EnterSubblock(UNHASHED_CONTROL_BLOCK_ID, 5);
1025
1026 // For implicit modules, write the hash of the PCM as its signature.
1027 ASTFileSignature Signature;
1028 if (WritingModule &&
1029 PP.getHeaderSearchInfo().getHeaderSearchOpts().ModulesHashContent) {
1030 Signature = createSignature(StringRef(Buffer.begin(), StartOfUnhashedControl));
1031 Record.append(Signature.begin(), Signature.end());
1032 Stream.EmitRecord(SIGNATURE, Record);
1033 Record.clear();
1034 }
1035
1036 // Diagnostic options.
1037 const auto &Diags = Context.getDiagnostics();
1038 const DiagnosticOptions &DiagOpts = Diags.getDiagnosticOptions();
1039#define DIAGOPT(Name, Bits, Default) Record.push_back(DiagOpts.Name);
1040#define ENUM_DIAGOPT(Name, Type, Bits, Default) \
1041 Record.push_back(static_cast<unsigned>(DiagOpts.get##Name()));
1042#include "clang/Basic/DiagnosticOptions.def"
1043 Record.push_back(DiagOpts.Warnings.size());
1044 for (unsigned I = 0, N = DiagOpts.Warnings.size(); I != N; ++I)
1045 AddString(DiagOpts.Warnings[I], Record);
1046 Record.push_back(DiagOpts.Remarks.size());
1047 for (unsigned I = 0, N = DiagOpts.Remarks.size(); I != N; ++I)
1048 AddString(DiagOpts.Remarks[I], Record);
1049 // Note: we don't serialize the log or serialization file names, because they
1050 // are generally transient files and will almost always be overridden.
1051 Stream.EmitRecord(DIAGNOSTIC_OPTIONS, Record);
1052
1053 // Write out the diagnostic/pragma mappings.
1054 WritePragmaDiagnosticMappings(Diags, /* isModule = */ WritingModule);
1055
1056 // Leave the options block.
1057 Stream.ExitBlock();
1058 return Signature;
1059}
1060
1061/// Write the control block.
1062void ASTWriter::WriteControlBlock(Preprocessor &PP, ASTContext &Context,
1063 StringRef isysroot,
1064 const std::string &OutputFile) {
1065 using namespace llvm;
1066
1067 Stream.EnterSubblock(CONTROL_BLOCK_ID, 5);
1068 RecordData Record;
1069
1070 // Metadata
1071 auto MetadataAbbrev = std::make_shared<BitCodeAbbrev>();
1072 MetadataAbbrev->Add(BitCodeAbbrevOp(METADATA));
1073 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Major
1074 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Minor
1075 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Clang maj.
1076 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 16)); // Clang min.
1077 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Relocatable
1078 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Timestamps
1079 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // PCHHasObjectFile
1080 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Errors
1081 MetadataAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // SVN branch/tag
1082 unsigned MetadataAbbrevCode = Stream.EmitAbbrev(std::move(MetadataAbbrev));
1083 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 1084, __PRETTY_FUNCTION__))
1084 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 1084, __PRETTY_FUNCTION__))
;
1085 {
1086 RecordData::value_type Record[] = {
1087 METADATA,
1088 VERSION_MAJOR,
1089 VERSION_MINOR,
1090 CLANG_VERSION_MAJOR11,
1091 CLANG_VERSION_MINOR0,
1092 !isysroot.empty(),
1093 IncludeTimestamps,
1094 Context.getLangOpts().BuildingPCHWithObjectFile,
1095 ASTHasCompilerErrors};
1096 Stream.EmitRecordWithBlob(MetadataAbbrevCode, Record,
1097 getClangFullRepositoryVersion());
1098 }
1099
1100 if (WritingModule) {
1101 // Module name
1102 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1103 Abbrev->Add(BitCodeAbbrevOp(MODULE_NAME));
1104 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
1105 unsigned AbbrevCode = Stream.EmitAbbrev(std::move(Abbrev));
1106 RecordData::value_type Record[] = {MODULE_NAME};
1107 Stream.EmitRecordWithBlob(AbbrevCode, Record, WritingModule->Name);
1108 }
1109
1110 if (WritingModule && WritingModule->Directory) {
1111 SmallString<128> BaseDir(WritingModule->Directory->getName());
1112 cleanPathForOutput(Context.getSourceManager().getFileManager(), BaseDir);
1113
1114 // If the home of the module is the current working directory, then we
1115 // want to pick up the cwd of the build process loading the module, not
1116 // our cwd, when we load this module.
1117 if (!PP.getHeaderSearchInfo()
1118 .getHeaderSearchOpts()
1119 .ModuleMapFileHomeIsCwd ||
1120 WritingModule->Directory->getName() != StringRef(".")) {
1121 // Module directory.
1122 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1123 Abbrev->Add(BitCodeAbbrevOp(MODULE_DIRECTORY));
1124 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Directory
1125 unsigned AbbrevCode = Stream.EmitAbbrev(std::move(Abbrev));
1126
1127 RecordData::value_type Record[] = {MODULE_DIRECTORY};
1128 Stream.EmitRecordWithBlob(AbbrevCode, Record, BaseDir);
1129 }
1130
1131 // Write out all other paths relative to the base directory if possible.
1132 BaseDirectory.assign(BaseDir.begin(), BaseDir.end());
1133 } else if (!isysroot.empty()) {
1134 // Write out paths relative to the sysroot if possible.
1135 BaseDirectory = std::string(isysroot);
1136 }
1137
1138 // Module map file
1139 if (WritingModule && WritingModule->Kind == Module::ModuleMapModule) {
1140 Record.clear();
1141
1142 auto &Map = PP.getHeaderSearchInfo().getModuleMap();
1143 AddPath(WritingModule->PresumedModuleMapFile.empty()
1144 ? Map.getModuleMapFileForUniquing(WritingModule)->getName()
1145 : StringRef(WritingModule->PresumedModuleMapFile),
1146 Record);
1147
1148 // Additional module map files.
1149 if (auto *AdditionalModMaps =
1150 Map.getAdditionalModuleMapFiles(WritingModule)) {
1151 Record.push_back(AdditionalModMaps->size());
1152 for (const FileEntry *F : *AdditionalModMaps)
1153 AddPath(F->getName(), Record);
1154 } else {
1155 Record.push_back(0);
1156 }
1157
1158 Stream.EmitRecord(MODULE_MAP_FILE, Record);
1159 }
1160
1161 // Imports
1162 if (Chain) {
1163 serialization::ModuleManager &Mgr = Chain->getModuleManager();
1164 Record.clear();
1165
1166 for (ModuleFile &M : Mgr) {
1167 // Skip modules that weren't directly imported.
1168 if (!M.isDirectlyImported())
1169 continue;
1170
1171 Record.push_back((unsigned)M.Kind); // FIXME: Stable encoding
1172 AddSourceLocation(M.ImportLoc, Record);
1173
1174 // If we have calculated signature, there is no need to store
1175 // the size or timestamp.
1176 Record.push_back(M.Signature ? 0 : M.File->getSize());
1177 Record.push_back(M.Signature ? 0 : getTimestampForOutput(M.File));
1178
1179 for (auto I : M.Signature)
1180 Record.push_back(I);
1181
1182 AddString(M.ModuleName, Record);
1183 AddPath(M.FileName, Record);
1184 }
1185 Stream.EmitRecord(IMPORTS, Record);
1186 }
1187
1188 // Write the options block.
1189 Stream.EnterSubblock(OPTIONS_BLOCK_ID, 4);
1190
1191 // Language options.
1192 Record.clear();
1193 const LangOptions &LangOpts = Context.getLangOpts();
1194#define LANGOPT(Name, Bits, Default, Description) \
1195 Record.push_back(LangOpts.Name);
1196#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
1197 Record.push_back(static_cast<unsigned>(LangOpts.get##Name()));
1198#include "clang/Basic/LangOptions.def"
1199#define SANITIZER(NAME, ID) \
1200 Record.push_back(LangOpts.Sanitize.has(SanitizerKind::ID));
1201#include "clang/Basic/Sanitizers.def"
1202
1203 Record.push_back(LangOpts.ModuleFeatures.size());
1204 for (StringRef Feature : LangOpts.ModuleFeatures)
1205 AddString(Feature, Record);
1206
1207 Record.push_back((unsigned) LangOpts.ObjCRuntime.getKind());
1208 AddVersionTuple(LangOpts.ObjCRuntime.getVersion(), Record);
1209
1210 AddString(LangOpts.CurrentModule, Record);
1211
1212 // Comment options.
1213 Record.push_back(LangOpts.CommentOpts.BlockCommandNames.size());
1214 for (const auto &I : LangOpts.CommentOpts.BlockCommandNames) {
1215 AddString(I, Record);
1216 }
1217 Record.push_back(LangOpts.CommentOpts.ParseAllComments);
1218
1219 // OpenMP offloading options.
1220 Record.push_back(LangOpts.OMPTargetTriples.size());
1221 for (auto &T : LangOpts.OMPTargetTriples)
1222 AddString(T.getTriple(), Record);
1223
1224 AddString(LangOpts.OMPHostIRFile, Record);
1225
1226 Stream.EmitRecord(LANGUAGE_OPTIONS, Record);
1227
1228 // Target options.
1229 Record.clear();
1230 const TargetInfo &Target = Context.getTargetInfo();
1231 const TargetOptions &TargetOpts = Target.getTargetOpts();
1232 AddString(TargetOpts.Triple, Record);
1233 AddString(TargetOpts.CPU, Record);
1234 AddString(TargetOpts.ABI, Record);
1235 Record.push_back(TargetOpts.FeaturesAsWritten.size());
1236 for (unsigned I = 0, N = TargetOpts.FeaturesAsWritten.size(); I != N; ++I) {
1237 AddString(TargetOpts.FeaturesAsWritten[I], Record);
1238 }
1239 Record.push_back(TargetOpts.Features.size());
1240 for (unsigned I = 0, N = TargetOpts.Features.size(); I != N; ++I) {
1241 AddString(TargetOpts.Features[I], Record);
1242 }
1243 Stream.EmitRecord(TARGET_OPTIONS, Record);
1244
1245 // File system options.
1246 Record.clear();
1247 const FileSystemOptions &FSOpts =
1248 Context.getSourceManager().getFileManager().getFileSystemOpts();
1249 AddString(FSOpts.WorkingDir, Record);
1250 Stream.EmitRecord(FILE_SYSTEM_OPTIONS, Record);
1251
1252 // Header search options.
1253 Record.clear();
1254 const HeaderSearchOptions &HSOpts
1255 = PP.getHeaderSearchInfo().getHeaderSearchOpts();
1256 AddString(HSOpts.Sysroot, Record);
1257
1258 // Include entries.
1259 Record.push_back(HSOpts.UserEntries.size());
1260 for (unsigned I = 0, N = HSOpts.UserEntries.size(); I != N; ++I) {
1261 const HeaderSearchOptions::Entry &Entry = HSOpts.UserEntries[I];
1262 AddString(Entry.Path, Record);
1263 Record.push_back(static_cast<unsigned>(Entry.Group));
1264 Record.push_back(Entry.IsFramework);
1265 Record.push_back(Entry.IgnoreSysRoot);
1266 }
1267
1268 // System header prefixes.
1269 Record.push_back(HSOpts.SystemHeaderPrefixes.size());
1270 for (unsigned I = 0, N = HSOpts.SystemHeaderPrefixes.size(); I != N; ++I) {
1271 AddString(HSOpts.SystemHeaderPrefixes[I].Prefix, Record);
1272 Record.push_back(HSOpts.SystemHeaderPrefixes[I].IsSystemHeader);
1273 }
1274
1275 AddString(HSOpts.ResourceDir, Record);
1276 AddString(HSOpts.ModuleCachePath, Record);
1277 AddString(HSOpts.ModuleUserBuildPath, Record);
1278 Record.push_back(HSOpts.DisableModuleHash);
1279 Record.push_back(HSOpts.ImplicitModuleMaps);
1280 Record.push_back(HSOpts.ModuleMapFileHomeIsCwd);
1281 Record.push_back(HSOpts.UseBuiltinIncludes);
1282 Record.push_back(HSOpts.UseStandardSystemIncludes);
1283 Record.push_back(HSOpts.UseStandardCXXIncludes);
1284 Record.push_back(HSOpts.UseLibcxx);
1285 // Write out the specific module cache path that contains the module files.
1286 AddString(PP.getHeaderSearchInfo().getModuleCachePath(), Record);
1287 Stream.EmitRecord(HEADER_SEARCH_OPTIONS, Record);
1288
1289 // Preprocessor options.
1290 Record.clear();
1291 const PreprocessorOptions &PPOpts = PP.getPreprocessorOpts();
1292
1293 // Macro definitions.
1294 Record.push_back(PPOpts.Macros.size());
1295 for (unsigned I = 0, N = PPOpts.Macros.size(); I != N; ++I) {
1296 AddString(PPOpts.Macros[I].first, Record);
1297 Record.push_back(PPOpts.Macros[I].second);
1298 }
1299
1300 // Includes
1301 Record.push_back(PPOpts.Includes.size());
1302 for (unsigned I = 0, N = PPOpts.Includes.size(); I != N; ++I)
1303 AddString(PPOpts.Includes[I], Record);
1304
1305 // Macro includes
1306 Record.push_back(PPOpts.MacroIncludes.size());
1307 for (unsigned I = 0, N = PPOpts.MacroIncludes.size(); I != N; ++I)
1308 AddString(PPOpts.MacroIncludes[I], Record);
1309
1310 Record.push_back(PPOpts.UsePredefines);
1311 // Detailed record is important since it is used for the module cache hash.
1312 Record.push_back(PPOpts.DetailedRecord);
1313 AddString(PPOpts.ImplicitPCHInclude, Record);
1314 Record.push_back(static_cast<unsigned>(PPOpts.ObjCXXARCStandardLibrary));
1315 Stream.EmitRecord(PREPROCESSOR_OPTIONS, Record);
1316
1317 // Leave the options block.
1318 Stream.ExitBlock();
1319
1320 // Original file name and file ID
1321 SourceManager &SM = Context.getSourceManager();
1322 if (const FileEntry *MainFile = SM.getFileEntryForID(SM.getMainFileID())) {
1323 auto FileAbbrev = std::make_shared<BitCodeAbbrev>();
1324 FileAbbrev->Add(BitCodeAbbrevOp(ORIGINAL_FILE));
1325 FileAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // File ID
1326 FileAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // File name
1327 unsigned FileAbbrevCode = Stream.EmitAbbrev(std::move(FileAbbrev));
1328
1329 Record.clear();
1330 Record.push_back(ORIGINAL_FILE);
1331 Record.push_back(SM.getMainFileID().getOpaqueValue());
1332 EmitRecordWithPath(FileAbbrevCode, Record, MainFile->getName());
1333 }
1334
1335 Record.clear();
1336 Record.push_back(SM.getMainFileID().getOpaqueValue());
1337 Stream.EmitRecord(ORIGINAL_FILE_ID, Record);
1338
1339 // Original PCH directory
1340 if (!OutputFile.empty() && OutputFile != "-") {
1341 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1342 Abbrev->Add(BitCodeAbbrevOp(ORIGINAL_PCH_DIR));
1343 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // File name
1344 unsigned AbbrevCode = Stream.EmitAbbrev(std::move(Abbrev));
1345
1346 SmallString<128> OutputPath(OutputFile);
1347
1348 SM.getFileManager().makeAbsolutePath(OutputPath);
1349 StringRef origDir = llvm::sys::path::parent_path(OutputPath);
1350
1351 RecordData::value_type Record[] = {ORIGINAL_PCH_DIR};
1352 Stream.EmitRecordWithBlob(AbbrevCode, Record, origDir);
1353 }
1354
1355 WriteInputFiles(Context.SourceMgr,
1356 PP.getHeaderSearchInfo().getHeaderSearchOpts(),
1357 PP.getLangOpts().Modules);
1358 Stream.ExitBlock();
1359}
1360
1361namespace {
1362
1363/// An input file.
1364struct InputFileEntry {
1365 const FileEntry *File;
1366 bool IsSystemFile;
1367 bool IsTransient;
1368 bool BufferOverridden;
1369 bool IsTopLevelModuleMap;
1370 uint32_t ContentHash[2];
1371};
1372
1373} // namespace
1374
1375void ASTWriter::WriteInputFiles(SourceManager &SourceMgr,
1376 HeaderSearchOptions &HSOpts,
1377 bool Modules) {
1378 using namespace llvm;
1379
1380 Stream.EnterSubblock(INPUT_FILES_BLOCK_ID, 4);
1381
1382 // Create input-file abbreviation.
1383 auto IFAbbrev = std::make_shared<BitCodeAbbrev>();
1384 IFAbbrev->Add(BitCodeAbbrevOp(INPUT_FILE));
1385 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ID
1386 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 12)); // Size
1387 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 32)); // Modification time
1388 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Overridden
1389 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Transient
1390 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Module map
1391 IFAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // File name
1392 unsigned IFAbbrevCode = Stream.EmitAbbrev(std::move(IFAbbrev));
1393
1394 // Create input file hash abbreviation.
1395 auto IFHAbbrev = std::make_shared<BitCodeAbbrev>();
1396 IFHAbbrev->Add(BitCodeAbbrevOp(INPUT_FILE_HASH));
1397 IFHAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1398 IFHAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1399 unsigned IFHAbbrevCode = Stream.EmitAbbrev(std::move(IFHAbbrev));
1400
1401 // Get all ContentCache objects for files, sorted by whether the file is a
1402 // system one or not. System files go at the back, users files at the front.
1403 std::deque<InputFileEntry> SortedFiles;
1404 for (unsigned I = 1, N = SourceMgr.local_sloc_entry_size(); I != N; ++I) {
1405 // Get this source location entry.
1406 const SrcMgr::SLocEntry *SLoc = &SourceMgr.getLocalSLocEntry(I);
1407 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 1407, __PRETTY_FUNCTION__))
;
1408
1409 // We only care about file entries that were not overridden.
1410 if (!SLoc->isFile())
1411 continue;
1412 const SrcMgr::FileInfo &File = SLoc->getFile();
1413 const SrcMgr::ContentCache *Cache = File.getContentCache();
1414 if (!Cache->OrigEntry)
1415 continue;
1416
1417 InputFileEntry Entry;
1418 Entry.File = Cache->OrigEntry;
1419 Entry.IsSystemFile = isSystem(File.getFileCharacteristic());
1420 Entry.IsTransient = Cache->IsTransient;
1421 Entry.BufferOverridden = Cache->BufferOverridden;
1422 Entry.IsTopLevelModuleMap = isModuleMap(File.getFileCharacteristic()) &&
1423 File.getIncludeLoc().isInvalid();
1424
1425 auto ContentHash = hash_code(-1);
1426 if (PP->getHeaderSearchInfo()
1427 .getHeaderSearchOpts()
1428 .ValidateASTInputFilesContent) {
1429 auto *MemBuff = Cache->getRawBuffer();
1430 if (MemBuff)
1431 ContentHash = hash_value(MemBuff->getBuffer());
1432 else
1433 // FIXME: The path should be taken from the FileEntryRef.
1434 PP->Diag(SourceLocation(), diag::err_module_unable_to_hash_content)
1435 << Entry.File->getName();
1436 }
1437 auto CH = llvm::APInt(64, ContentHash);
1438 Entry.ContentHash[0] =
1439 static_cast<uint32_t>(CH.getLoBits(32).getZExtValue());
1440 Entry.ContentHash[1] =
1441 static_cast<uint32_t>(CH.getHiBits(32).getZExtValue());
1442
1443 if (Entry.IsSystemFile)
1444 SortedFiles.push_back(Entry);
1445 else
1446 SortedFiles.push_front(Entry);
1447 }
1448
1449 unsigned UserFilesNum = 0;
1450 // Write out all of the input files.
1451 std::vector<uint64_t> InputFileOffsets;
1452 for (const auto &Entry : SortedFiles) {
1453 uint32_t &InputFileID = InputFileIDs[Entry.File];
1454 if (InputFileID != 0)
1455 continue; // already recorded this file.
1456
1457 // Record this entry's offset.
1458 InputFileOffsets.push_back(Stream.GetCurrentBitNo());
1459
1460 InputFileID = InputFileOffsets.size();
1461
1462 if (!Entry.IsSystemFile)
1463 ++UserFilesNum;
1464
1465 // Emit size/modification time for this file.
1466 // And whether this file was overridden.
1467 {
1468 RecordData::value_type Record[] = {
1469 INPUT_FILE,
1470 InputFileOffsets.size(),
1471 (uint64_t)Entry.File->getSize(),
1472 (uint64_t)getTimestampForOutput(Entry.File),
1473 Entry.BufferOverridden,
1474 Entry.IsTransient,
1475 Entry.IsTopLevelModuleMap};
1476
1477 // FIXME: The path should be taken from the FileEntryRef.
1478 EmitRecordWithPath(IFAbbrevCode, Record, Entry.File->getName());
1479 }
1480
1481 // Emit content hash for this file.
1482 {
1483 RecordData::value_type Record[] = {INPUT_FILE_HASH, Entry.ContentHash[0],
1484 Entry.ContentHash[1]};
1485 Stream.EmitRecordWithAbbrev(IFHAbbrevCode, Record);
1486 }
1487 }
1488
1489 Stream.ExitBlock();
1490
1491 // Create input file offsets abbreviation.
1492 auto OffsetsAbbrev = std::make_shared<BitCodeAbbrev>();
1493 OffsetsAbbrev->Add(BitCodeAbbrevOp(INPUT_FILE_OFFSETS));
1494 OffsetsAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // # input files
1495 OffsetsAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // # non-system
1496 // input files
1497 OffsetsAbbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Array
1498 unsigned OffsetsAbbrevCode = Stream.EmitAbbrev(std::move(OffsetsAbbrev));
1499
1500 // Write input file offsets.
1501 RecordData::value_type Record[] = {INPUT_FILE_OFFSETS,
1502 InputFileOffsets.size(), UserFilesNum};
1503 Stream.EmitRecordWithBlob(OffsetsAbbrevCode, Record, bytes(InputFileOffsets));
1504}
1505
1506//===----------------------------------------------------------------------===//
1507// Source Manager Serialization
1508//===----------------------------------------------------------------------===//
1509
1510/// Create an abbreviation for the SLocEntry that refers to a
1511/// file.
1512static unsigned CreateSLocFileAbbrev(llvm::BitstreamWriter &Stream) {
1513 using namespace llvm;
1514
1515 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1516 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_FILE_ENTRY));
1517 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset
1518 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Include location
1519 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Characteristic
1520 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Line directives
1521 // FileEntry fields.
1522 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Input File ID
1523 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // NumCreatedFIDs
1524 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 24)); // FirstDeclIndex
1525 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // NumDecls
1526 return Stream.EmitAbbrev(std::move(Abbrev));
1527}
1528
1529/// Create an abbreviation for the SLocEntry that refers to a
1530/// buffer.
1531static unsigned CreateSLocBufferAbbrev(llvm::BitstreamWriter &Stream) {
1532 using namespace llvm;
1533
1534 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1535 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_BUFFER_ENTRY));
1536 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset
1537 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Include location
1538 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 3)); // Characteristic
1539 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Line directives
1540 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Buffer name blob
1541 return Stream.EmitAbbrev(std::move(Abbrev));
1542}
1543
1544/// Create an abbreviation for the SLocEntry that refers to a
1545/// buffer's blob.
1546static unsigned CreateSLocBufferBlobAbbrev(llvm::BitstreamWriter &Stream,
1547 bool Compressed) {
1548 using namespace llvm;
1549
1550 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1551 Abbrev->Add(BitCodeAbbrevOp(Compressed ? SM_SLOC_BUFFER_BLOB_COMPRESSED
1552 : SM_SLOC_BUFFER_BLOB));
1553 if (Compressed)
1554 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Uncompressed size
1555 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Blob
1556 return Stream.EmitAbbrev(std::move(Abbrev));
1557}
1558
1559/// Create an abbreviation for the SLocEntry that refers to a macro
1560/// expansion.
1561static unsigned CreateSLocExpansionAbbrev(llvm::BitstreamWriter &Stream) {
1562 using namespace llvm;
1563
1564 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1565 Abbrev->Add(BitCodeAbbrevOp(SM_SLOC_EXPANSION_ENTRY));
1566 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Offset
1567 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Spelling location
1568 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // Start location
1569 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 8)); // End location
1570 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Is token range
1571 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Token length
1572 return Stream.EmitAbbrev(std::move(Abbrev));
1573}
1574
1575namespace {
1576
1577 // Trait used for the on-disk hash table of header search information.
1578 class HeaderFileInfoTrait {
1579 ASTWriter &Writer;
1580
1581 // Keep track of the framework names we've used during serialization.
1582 SmallVector<char, 128> FrameworkStringData;
1583 llvm::StringMap<unsigned> FrameworkNameOffset;
1584
1585 public:
1586 HeaderFileInfoTrait(ASTWriter &Writer) : Writer(Writer) {}
1587
1588 struct key_type {
1589 StringRef Filename;
1590 off_t Size;
1591 time_t ModTime;
1592 };
1593 using key_type_ref = const key_type &;
1594
1595 using UnresolvedModule =
1596 llvm::PointerIntPair<Module *, 2, ModuleMap::ModuleHeaderRole>;
1597
1598 struct data_type {
1599 const HeaderFileInfo &HFI;
1600 ArrayRef<ModuleMap::KnownHeader> KnownHeaders;
1601 UnresolvedModule Unresolved;
1602 };
1603 using data_type_ref = const data_type &;
1604
1605 using hash_value_type = unsigned;
1606 using offset_type = unsigned;
1607
1608 hash_value_type ComputeHash(key_type_ref key) {
1609 // The hash is based only on size/time of the file, so that the reader can
1610 // match even when symlinking or excess path elements ("foo/../", "../")
1611 // change the form of the name. However, complete path is still the key.
1612 return llvm::hash_combine(key.Size, key.ModTime);
1613 }
1614
1615 std::pair<unsigned, unsigned>
1616 EmitKeyDataLength(raw_ostream& Out, key_type_ref key, data_type_ref Data) {
1617 using namespace llvm::support;
1618
1619 endian::Writer LE(Out, little);
1620 unsigned KeyLen = key.Filename.size() + 1 + 8 + 8;
1621 LE.write<uint16_t>(KeyLen);
1622 unsigned DataLen = 1 + 2 + 4 + 4;
1623 for (auto ModInfo : Data.KnownHeaders)
1624 if (Writer.getLocalOrImportedSubmoduleID(ModInfo.getModule()))
1625 DataLen += 4;
1626 if (Data.Unresolved.getPointer())
1627 DataLen += 4;
1628 LE.write<uint8_t>(DataLen);
1629 return std::make_pair(KeyLen, DataLen);
1630 }
1631
1632 void EmitKey(raw_ostream& Out, key_type_ref key, unsigned KeyLen) {
1633 using namespace llvm::support;
1634
1635 endian::Writer LE(Out, little);
1636 LE.write<uint64_t>(key.Size);
1637 KeyLen -= 8;
1638 LE.write<uint64_t>(key.ModTime);
1639 KeyLen -= 8;
1640 Out.write(key.Filename.data(), KeyLen);
1641 }
1642
1643 void EmitData(raw_ostream &Out, key_type_ref key,
1644 data_type_ref Data, unsigned DataLen) {
1645 using namespace llvm::support;
1646
1647 endian::Writer LE(Out, little);
1648 uint64_t Start = Out.tell(); (void)Start;
1649
1650 unsigned char Flags = (Data.HFI.isImport << 5)
1651 | (Data.HFI.isPragmaOnce << 4)
1652 | (Data.HFI.DirInfo << 1)
1653 | Data.HFI.IndexHeaderMapHeader;
1654 LE.write<uint8_t>(Flags);
1655 LE.write<uint16_t>(Data.HFI.NumIncludes);
1656
1657 if (!Data.HFI.ControllingMacro)
1658 LE.write<uint32_t>(Data.HFI.ControllingMacroID);
1659 else
1660 LE.write<uint32_t>(Writer.getIdentifierRef(Data.HFI.ControllingMacro));
1661
1662 unsigned Offset = 0;
1663 if (!Data.HFI.Framework.empty()) {
1664 // If this header refers into a framework, save the framework name.
1665 llvm::StringMap<unsigned>::iterator Pos
1666 = FrameworkNameOffset.find(Data.HFI.Framework);
1667 if (Pos == FrameworkNameOffset.end()) {
1668 Offset = FrameworkStringData.size() + 1;
1669 FrameworkStringData.append(Data.HFI.Framework.begin(),
1670 Data.HFI.Framework.end());
1671 FrameworkStringData.push_back(0);
1672
1673 FrameworkNameOffset[Data.HFI.Framework] = Offset;
1674 } else
1675 Offset = Pos->second;
1676 }
1677 LE.write<uint32_t>(Offset);
1678
1679 auto EmitModule = [&](Module *M, ModuleMap::ModuleHeaderRole Role) {
1680 if (uint32_t ModID = Writer.getLocalOrImportedSubmoduleID(M)) {
1681 uint32_t Value = (ModID << 2) | (unsigned)Role;
1682 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 1682, __PRETTY_FUNCTION__))
;
1683 LE.write<uint32_t>(Value);
1684 }
1685 };
1686
1687 // FIXME: If the header is excluded, we should write out some
1688 // record of that fact.
1689 for (auto ModInfo : Data.KnownHeaders)
1690 EmitModule(ModInfo.getModule(), ModInfo.getRole());
1691 if (Data.Unresolved.getPointer())
1692 EmitModule(Data.Unresolved.getPointer(), Data.Unresolved.getInt());
1693
1694 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 1694, __PRETTY_FUNCTION__))
;
1695 }
1696
1697 const char *strings_begin() const { return FrameworkStringData.begin(); }
1698 const char *strings_end() const { return FrameworkStringData.end(); }
1699 };
1700
1701} // namespace
1702
1703/// Write the header search block for the list of files that
1704///
1705/// \param HS The header search structure to save.
1706void ASTWriter::WriteHeaderSearch(const HeaderSearch &HS) {
1707 HeaderFileInfoTrait GeneratorTrait(*this);
1708 llvm::OnDiskChainedHashTableGenerator<HeaderFileInfoTrait> Generator;
1709 SmallVector<const char *, 4> SavedStrings;
1710 unsigned NumHeaderSearchEntries = 0;
1711
1712 // Find all unresolved headers for the current module. We generally will
1713 // have resolved them before we get here, but not necessarily: we might be
1714 // compiling a preprocessed module, where there is no requirement for the
1715 // original files to exist any more.
1716 const HeaderFileInfo Empty; // So we can take a reference.
1717 if (WritingModule) {
1
Assuming field 'WritingModule' is null
2
Taking false branch
1718 llvm::SmallVector<Module *, 16> Worklist(1, WritingModule);
1719 while (!Worklist.empty()) {
1720 Module *M = Worklist.pop_back_val();
1721 if (!M->isAvailable())
1722 continue;
1723
1724 // Map to disk files where possible, to pick up any missing stat
1725 // information. This also means we don't need to check the unresolved
1726 // headers list when emitting resolved headers in the first loop below.
1727 // FIXME: It'd be preferable to avoid doing this if we were given
1728 // sufficient stat information in the module map.
1729 HS.getModuleMap().resolveHeaderDirectives(M);
1730
1731 // If the file didn't exist, we can still create a module if we were given
1732 // enough information in the module map.
1733 for (auto U : M->MissingHeaders) {
1734 // Check that we were given enough information to build a module
1735 // without this file existing on disk.
1736 if (!U.Size || (!U.ModTime && IncludeTimestamps)) {
1737 PP->Diag(U.FileNameLoc, diag::err_module_no_size_mtime_for_header)
1738 << WritingModule->getFullModuleName() << U.Size.hasValue()
1739 << U.FileName;
1740 continue;
1741 }
1742
1743 // Form the effective relative pathname for the file.
1744 SmallString<128> Filename(M->Directory->getName());
1745 llvm::sys::path::append(Filename, U.FileName);
1746 PreparePathForOutput(Filename);
1747
1748 StringRef FilenameDup = strdup(Filename.c_str());
1749 SavedStrings.push_back(FilenameDup.data());
1750
1751 HeaderFileInfoTrait::key_type Key = {
1752 FilenameDup, *U.Size, IncludeTimestamps ? *U.ModTime : 0
1753 };
1754 HeaderFileInfoTrait::data_type Data = {
1755 Empty, {}, {M, ModuleMap::headerKindToRole(U.Kind)}
1756 };
1757 // FIXME: Deal with cases where there are multiple unresolved header
1758 // directives in different submodules for the same header.
1759 Generator.insert(Key, Data, GeneratorTrait);
1760 ++NumHeaderSearchEntries;
1761 }
1762
1763 Worklist.append(M->submodule_begin(), M->submodule_end());
1764 }
1765 }
1766
1767 SmallVector<const FileEntry *, 16> FilesByUID;
1768 HS.getFileMgr().GetUniqueIDMapping(FilesByUID);
1769
1770 if (FilesByUID.size() > HS.header_file_size())
3
Assuming the condition is false
4
Taking false branch
1771 FilesByUID.resize(HS.header_file_size());
1772
1773 for (unsigned UID = 0, LastUID = FilesByUID.size(); UID != LastUID; ++UID) {
5
Assuming 'UID' is not equal to 'LastUID'
6
Loop condition is true. Entering loop body
1774 const FileEntry *File = FilesByUID[UID];
1775 if (!File)
7
Assuming 'File' is non-null
8
Taking false branch
1776 continue;
1777
1778 // Get the file info. This will load info from the external source if
1779 // necessary. Skip emitting this file if we have no information on it
1780 // as a header file (in which case HFI will be null) or if it hasn't
1781 // changed since it was loaded. Also skip it if it's for a modular header
1782 // from a different module; in that case, we rely on the module(s)
1783 // containing the header to provide this information.
1784 const HeaderFileInfo *HFI =
1785 HS.getExistingFileInfo(File, /*WantExternal*/!Chain);
9
Assuming field 'Chain' is null
1786 if (!HFI || (HFI->isModuleHeader && !HFI->isCompilingModuleHeader))
10
Assuming 'HFI' is non-null
11
Assuming field 'isModuleHeader' is not equal to 0
12
Assuming field 'isCompilingModuleHeader' is not equal to 0
13
Taking false branch
1787 continue;
1788
1789 // Massage the file path into an appropriate form.
1790 StringRef Filename = File->getName();
1791 SmallString<128> FilenameTmp(Filename);
1792 if (PreparePathForOutput(FilenameTmp)) {
14
Assuming the condition is true
15
Taking true branch
1793 // If we performed any translation on the file name at all, we need to
1794 // save this string, since the generator will refer to it later.
1795 Filename = StringRef(strdup(FilenameTmp.c_str()));
16
Memory is allocated
17
Potential memory leak
1796 SavedStrings.push_back(Filename.data());
1797 }
1798
1799 HeaderFileInfoTrait::key_type Key = {
1800 Filename, File->getSize(), getTimestampForOutput(File)
1801 };
1802 HeaderFileInfoTrait::data_type Data = {
1803 *HFI, HS.getModuleMap().findAllModulesForHeader(File), {}
1804 };
1805 Generator.insert(Key, Data, GeneratorTrait);
1806 ++NumHeaderSearchEntries;
1807 }
1808
1809 // Create the on-disk hash table in a buffer.
1810 SmallString<4096> TableData;
1811 uint32_t BucketOffset;
1812 {
1813 using namespace llvm::support;
1814
1815 llvm::raw_svector_ostream Out(TableData);
1816 // Make sure that no bucket is at offset 0
1817 endian::write<uint32_t>(Out, 0, little);
1818 BucketOffset = Generator.Emit(Out, GeneratorTrait);
1819 }
1820
1821 // Create a blob abbreviation
1822 using namespace llvm;
1823
1824 auto Abbrev = std::make_shared<BitCodeAbbrev>();
1825 Abbrev->Add(BitCodeAbbrevOp(HEADER_SEARCH_TABLE));
1826 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1827 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1828 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
1829 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
1830 unsigned TableAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
1831
1832 // Write the header search table
1833 RecordData::value_type Record[] = {HEADER_SEARCH_TABLE, BucketOffset,
1834 NumHeaderSearchEntries, TableData.size()};
1835 TableData.append(GeneratorTrait.strings_begin(),GeneratorTrait.strings_end());
1836 Stream.EmitRecordWithBlob(TableAbbrev, Record, TableData);
1837
1838 // Free all of the strings we had to duplicate.
1839 for (unsigned I = 0, N = SavedStrings.size(); I != N; ++I)
1840 free(const_cast<char *>(SavedStrings[I]));
1841}
1842
1843static void emitBlob(llvm::BitstreamWriter &Stream, StringRef Blob,
1844 unsigned SLocBufferBlobCompressedAbbrv,
1845 unsigned SLocBufferBlobAbbrv) {
1846 using RecordDataType = ASTWriter::RecordData::value_type;
1847
1848 // Compress the buffer if possible. We expect that almost all PCM
1849 // consumers will not want its contents.
1850 SmallString<0> CompressedBuffer;
1851 if (llvm::zlib::isAvailable()) {
1852 llvm::Error E = llvm::zlib::compress(Blob.drop_back(1), CompressedBuffer);
1853 if (!E) {
1854 RecordDataType Record[] = {SM_SLOC_BUFFER_BLOB_COMPRESSED,
1855 Blob.size() - 1};
1856 Stream.EmitRecordWithBlob(SLocBufferBlobCompressedAbbrv, Record,
1857 CompressedBuffer);
1858 return;
1859 }
1860 llvm::consumeError(std::move(E));
1861 }
1862
1863 RecordDataType Record[] = {SM_SLOC_BUFFER_BLOB};
1864 Stream.EmitRecordWithBlob(SLocBufferBlobAbbrv, Record, Blob);
1865}
1866
1867/// Writes the block containing the serialized form of the
1868/// source manager.
1869///
1870/// TODO: We should probably use an on-disk hash table (stored in a
1871/// blob), indexed based on the file name, so that we only create
1872/// entries for files that we actually need. In the common case (no
1873/// errors), we probably won't have to create file entries for any of
1874/// the files in the AST.
1875void ASTWriter::WriteSourceManagerBlock(SourceManager &SourceMgr,
1876 const Preprocessor &PP) {
1877 RecordData Record;
1878
1879 // Enter the source manager block.
1880 Stream.EnterSubblock(SOURCE_MANAGER_BLOCK_ID, 4);
1881
1882 // Abbreviations for the various kinds of source-location entries.
1883 unsigned SLocFileAbbrv = CreateSLocFileAbbrev(Stream);
1884 unsigned SLocBufferAbbrv = CreateSLocBufferAbbrev(Stream);
1885 unsigned SLocBufferBlobAbbrv = CreateSLocBufferBlobAbbrev(Stream, false);
1886 unsigned SLocBufferBlobCompressedAbbrv =
1887 CreateSLocBufferBlobAbbrev(Stream, true);
1888 unsigned SLocExpansionAbbrv = CreateSLocExpansionAbbrev(Stream);
1889
1890 // Write out the source location entry table. We skip the first
1891 // entry, which is always the same dummy entry.
1892 std::vector<uint32_t> SLocEntryOffsets;
1893 RecordData PreloadSLocs;
1894 SLocEntryOffsets.reserve(SourceMgr.local_sloc_entry_size() - 1);
1895 for (unsigned I = 1, N = SourceMgr.local_sloc_entry_size();
1896 I != N; ++I) {
1897 // Get this source location entry.
1898 const SrcMgr::SLocEntry *SLoc = &SourceMgr.getLocalSLocEntry(I);
1899 FileID FID = FileID::get(I);
1900 assert(&SourceMgr.getSLocEntry(FID) == SLoc)((&SourceMgr.getSLocEntry(FID) == SLoc) ? static_cast<
void> (0) : __assert_fail ("&SourceMgr.getSLocEntry(FID) == SLoc"
, "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 1900, __PRETTY_FUNCTION__))
;
1901
1902 // Record the offset of this source-location entry.
1903 SLocEntryOffsets.push_back(Stream.GetCurrentBitNo());
1904
1905 // Figure out which record code to use.
1906 unsigned Code;
1907 if (SLoc->isFile()) {
1908 const SrcMgr::ContentCache *Cache = SLoc->getFile().getContentCache();
1909 if (Cache->OrigEntry) {
1910 Code = SM_SLOC_FILE_ENTRY;
1911 } else
1912 Code = SM_SLOC_BUFFER_ENTRY;
1913 } else
1914 Code = SM_SLOC_EXPANSION_ENTRY;
1915 Record.clear();
1916 Record.push_back(Code);
1917
1918 // Starting offset of this entry within this module, so skip the dummy.
1919 Record.push_back(SLoc->getOffset() - 2);
1920 if (SLoc->isFile()) {
1921 const SrcMgr::FileInfo &File = SLoc->getFile();
1922 AddSourceLocation(File.getIncludeLoc(), Record);
1923 Record.push_back(File.getFileCharacteristic()); // FIXME: stable encoding
1924 Record.push_back(File.hasLineDirectives());
1925
1926 const SrcMgr::ContentCache *Content = File.getContentCache();
1927 bool EmitBlob = false;
1928 if (Content->OrigEntry) {
1929 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 1930, __PRETTY_FUNCTION__))
1930 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 1930, __PRETTY_FUNCTION__))
;
1931
1932 // The source location entry is a file. Emit input file ID.
1933 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 1933, __PRETTY_FUNCTION__))
;
1934 Record.push_back(InputFileIDs[Content->OrigEntry]);
1935
1936 Record.push_back(File.NumCreatedFIDs);
1937
1938 FileDeclIDsTy::iterator FDI = FileDeclIDs.find(FID);
1939 if (FDI != FileDeclIDs.end()) {
1940 Record.push_back(FDI->second->FirstDeclIndex);
1941 Record.push_back(FDI->second->DeclIDs.size());
1942 } else {
1943 Record.push_back(0);
1944 Record.push_back(0);
1945 }
1946
1947 Stream.EmitRecordWithAbbrev(SLocFileAbbrv, Record);
1948
1949 if (Content->BufferOverridden || Content->IsTransient)
1950 EmitBlob = true;
1951 } else {
1952 // The source location entry is a buffer. The blob associated
1953 // with this entry contains the contents of the buffer.
1954
1955 // We add one to the size so that we capture the trailing NULL
1956 // that is required by llvm::MemoryBuffer::getMemBuffer (on
1957 // the reader side).
1958 const llvm::MemoryBuffer *Buffer =
1959 Content->getBuffer(PP.getDiagnostics(), PP.getFileManager());
1960 StringRef Name = Buffer->getBufferIdentifier();
1961 Stream.EmitRecordWithBlob(SLocBufferAbbrv, Record,
1962 StringRef(Name.data(), Name.size() + 1));
1963 EmitBlob = true;
1964
1965 if (Name == "<built-in>")
1966 PreloadSLocs.push_back(SLocEntryOffsets.size());
1967 }
1968
1969 if (EmitBlob) {
1970 // Include the implicit terminating null character in the on-disk buffer
1971 // if we're writing it uncompressed.
1972 const llvm::MemoryBuffer *Buffer =
1973 Content->getBuffer(PP.getDiagnostics(), PP.getFileManager());
1974 StringRef Blob(Buffer->getBufferStart(), Buffer->getBufferSize() + 1);
1975 emitBlob(Stream, Blob, SLocBufferBlobCompressedAbbrv,
1976 SLocBufferBlobAbbrv);
1977 }
1978 } else {
1979 // The source location entry is a macro expansion.
1980 const SrcMgr::ExpansionInfo &Expansion = SLoc->getExpansion();
1981 AddSourceLocation(Expansion.getSpellingLoc(), Record);
1982 AddSourceLocation(Expansion.getExpansionLocStart(), Record);
1983 AddSourceLocation(Expansion.isMacroArgExpansion()
1984 ? SourceLocation()
1985 : Expansion.getExpansionLocEnd(),
1986 Record);
1987 Record.push_back(Expansion.isExpansionTokenRange());
1988
1989 // Compute the token length for this macro expansion.
1990 unsigned NextOffset = SourceMgr.getNextLocalOffset();
1991 if (I + 1 != N)
1992 NextOffset = SourceMgr.getLocalSLocEntry(I + 1).getOffset();
1993 Record.push_back(NextOffset - SLoc->getOffset() - 1);
1994 Stream.EmitRecordWithAbbrev(SLocExpansionAbbrv, Record);
1995 }
1996 }
1997
1998 Stream.ExitBlock();
1999
2000 if (SLocEntryOffsets.empty())
2001 return;
2002
2003 // Write the source-location offsets table into the AST block. This
2004 // table is used for lazily loading source-location information.
2005 using namespace llvm;
2006
2007 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2008 Abbrev->Add(BitCodeAbbrevOp(SOURCE_LOCATION_OFFSETS));
2009 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 16)); // # of slocs
2010 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 16)); // total size
2011 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // offsets
2012 unsigned SLocOffsetsAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2013 {
2014 RecordData::value_type Record[] = {
2015 SOURCE_LOCATION_OFFSETS, SLocEntryOffsets.size(),
2016 SourceMgr.getNextLocalOffset() - 1 /* skip dummy */};
2017 Stream.EmitRecordWithBlob(SLocOffsetsAbbrev, Record,
2018 bytes(SLocEntryOffsets));
2019 }
2020 // Write the source location entry preloads array, telling the AST
2021 // reader which source locations entries it should load eagerly.
2022 Stream.EmitRecord(SOURCE_LOCATION_PRELOADS, PreloadSLocs);
2023
2024 // Write the line table. It depends on remapping working, so it must come
2025 // after the source location offsets.
2026 if (SourceMgr.hasLineTable()) {
2027 LineTableInfo &LineTable = SourceMgr.getLineTable();
2028
2029 Record.clear();
2030
2031 // Emit the needed file names.
2032 llvm::DenseMap<int, int> FilenameMap;
2033 FilenameMap[-1] = -1; // For unspecified filenames.
2034 for (const auto &L : LineTable) {
2035 if (L.first.ID < 0)
2036 continue;
2037 for (auto &LE : L.second) {
2038 if (FilenameMap.insert(std::make_pair(LE.FilenameID,
2039 FilenameMap.size() - 1)).second)
2040 AddPath(LineTable.getFilename(LE.FilenameID), Record);
2041 }
2042 }
2043 Record.push_back(0);
2044
2045 // Emit the line entries
2046 for (const auto &L : LineTable) {
2047 // Only emit entries for local files.
2048 if (L.first.ID < 0)
2049 continue;
2050
2051 // Emit the file ID
2052 Record.push_back(L.first.ID);
2053
2054 // Emit the line entries
2055 Record.push_back(L.second.size());
2056 for (const auto &LE : L.second) {
2057 Record.push_back(LE.FileOffset);
2058 Record.push_back(LE.LineNo);
2059 Record.push_back(FilenameMap[LE.FilenameID]);
2060 Record.push_back((unsigned)LE.FileKind);
2061 Record.push_back(LE.IncludeOffset);
2062 }
2063 }
2064
2065 Stream.EmitRecord(SOURCE_MANAGER_LINE_TABLE, Record);
2066 }
2067}
2068
2069//===----------------------------------------------------------------------===//
2070// Preprocessor Serialization
2071//===----------------------------------------------------------------------===//
2072
2073static bool shouldIgnoreMacro(MacroDirective *MD, bool IsModule,
2074 const Preprocessor &PP) {
2075 if (MacroInfo *MI = MD->getMacroInfo())
2076 if (MI->isBuiltinMacro())
2077 return true;
2078
2079 if (IsModule) {
2080 SourceLocation Loc = MD->getLocation();
2081 if (Loc.isInvalid())
2082 return true;
2083 if (PP.getSourceManager().getFileID(Loc) == PP.getPredefinesFileID())
2084 return true;
2085 }
2086
2087 return false;
2088}
2089
2090/// Writes the block containing the serialized form of the
2091/// preprocessor.
2092void ASTWriter::WritePreprocessor(const Preprocessor &PP, bool IsModule) {
2093 PreprocessingRecord *PPRec = PP.getPreprocessingRecord();
2094 if (PPRec)
2095 WritePreprocessorDetail(*PPRec);
2096
2097 RecordData Record;
2098 RecordData ModuleMacroRecord;
2099
2100 // If the preprocessor __COUNTER__ value has been bumped, remember it.
2101 if (PP.getCounterValue() != 0) {
2102 RecordData::value_type Record[] = {PP.getCounterValue()};
2103 Stream.EmitRecord(PP_COUNTER_VALUE, Record);
2104 }
2105
2106 if (PP.isRecordingPreamble() && PP.hasRecordedPreamble()) {
2107 assert(!IsModule)((!IsModule) ? static_cast<void> (0) : __assert_fail ("!IsModule"
, "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2107, __PRETTY_FUNCTION__))
;
2108 auto SkipInfo = PP.getPreambleSkipInfo();
2109 if (SkipInfo.hasValue()) {
2110 Record.push_back(true);
2111 AddSourceLocation(SkipInfo->HashTokenLoc, Record);
2112 AddSourceLocation(SkipInfo->IfTokenLoc, Record);
2113 Record.push_back(SkipInfo->FoundNonSkipPortion);
2114 Record.push_back(SkipInfo->FoundElse);
2115 AddSourceLocation(SkipInfo->ElseLoc, Record);
2116 } else {
2117 Record.push_back(false);
2118 }
2119 for (const auto &Cond : PP.getPreambleConditionalStack()) {
2120 AddSourceLocation(Cond.IfLoc, Record);
2121 Record.push_back(Cond.WasSkipping);
2122 Record.push_back(Cond.FoundNonSkip);
2123 Record.push_back(Cond.FoundElse);
2124 }
2125 Stream.EmitRecord(PP_CONDITIONAL_STACK, Record);
2126 Record.clear();
2127 }
2128
2129 // Enter the preprocessor block.
2130 Stream.EnterSubblock(PREPROCESSOR_BLOCK_ID, 3);
2131
2132 // If the AST file contains __DATE__ or __TIME__ emit a warning about this.
2133 // FIXME: Include a location for the use, and say which one was used.
2134 if (PP.SawDateOrTime())
2135 PP.Diag(SourceLocation(), diag::warn_module_uses_date_time) << IsModule;
2136
2137 // Loop over all the macro directives that are live at the end of the file,
2138 // emitting each to the PP section.
2139
2140 // Construct the list of identifiers with macro directives that need to be
2141 // serialized.
2142 SmallVector<const IdentifierInfo *, 128> MacroIdentifiers;
2143 for (auto &Id : PP.getIdentifierTable())
2144 if (Id.second->hadMacroDefinition() &&
2145 (!Id.second->isFromAST() ||
2146 Id.second->hasChangedSinceDeserialization()))
2147 MacroIdentifiers.push_back(Id.second);
2148 // Sort the set of macro definitions that need to be serialized by the
2149 // name of the macro, to provide a stable ordering.
2150 llvm::sort(MacroIdentifiers, llvm::deref<std::less<>>());
2151
2152 // Emit the macro directives as a list and associate the offset with the
2153 // identifier they belong to.
2154 for (const IdentifierInfo *Name : MacroIdentifiers) {
2155 MacroDirective *MD = PP.getLocalMacroDirectiveHistory(Name);
2156 auto StartOffset = Stream.GetCurrentBitNo();
2157
2158 // Emit the macro directives in reverse source order.
2159 for (; MD; MD = MD->getPrevious()) {
2160 // Once we hit an ignored macro, we're done: the rest of the chain
2161 // will all be ignored macros.
2162 if (shouldIgnoreMacro(MD, IsModule, PP))
2163 break;
2164
2165 AddSourceLocation(MD->getLocation(), Record);
2166 Record.push_back(MD->getKind());
2167 if (auto *DefMD = dyn_cast<DefMacroDirective>(MD)) {
2168 Record.push_back(getMacroRef(DefMD->getInfo(), Name));
2169 } else if (auto *VisMD = dyn_cast<VisibilityMacroDirective>(MD)) {
2170 Record.push_back(VisMD->isPublic());
2171 }
2172 }
2173
2174 // Write out any exported module macros.
2175 bool EmittedModuleMacros = false;
2176 // We write out exported module macros for PCH as well.
2177 auto Leafs = PP.getLeafModuleMacros(Name);
2178 SmallVector<ModuleMacro*, 8> Worklist(Leafs.begin(), Leafs.end());
2179 llvm::DenseMap<ModuleMacro*, unsigned> Visits;
2180 while (!Worklist.empty()) {
2181 auto *Macro = Worklist.pop_back_val();
2182
2183 // Emit a record indicating this submodule exports this macro.
2184 ModuleMacroRecord.push_back(
2185 getSubmoduleID(Macro->getOwningModule()));
2186 ModuleMacroRecord.push_back(getMacroRef(Macro->getMacroInfo(), Name));
2187 for (auto *M : Macro->overrides())
2188 ModuleMacroRecord.push_back(getSubmoduleID(M->getOwningModule()));
2189
2190 Stream.EmitRecord(PP_MODULE_MACRO, ModuleMacroRecord);
2191 ModuleMacroRecord.clear();
2192
2193 // Enqueue overridden macros once we've visited all their ancestors.
2194 for (auto *M : Macro->overrides())
2195 if (++Visits[M] == M->getNumOverridingMacros())
2196 Worklist.push_back(M);
2197
2198 EmittedModuleMacros = true;
2199 }
2200
2201 if (Record.empty() && !EmittedModuleMacros)
2202 continue;
2203
2204 IdentMacroDirectivesOffsetMap[Name] = StartOffset;
2205 Stream.EmitRecord(PP_MACRO_DIRECTIVE_HISTORY, Record);
2206 Record.clear();
2207 }
2208
2209 /// Offsets of each of the macros into the bitstream, indexed by
2210 /// the local macro ID
2211 ///
2212 /// For each identifier that is associated with a macro, this map
2213 /// provides the offset into the bitstream where that macro is
2214 /// defined.
2215 std::vector<uint32_t> MacroOffsets;
2216
2217 for (unsigned I = 0, N = MacroInfosToEmit.size(); I != N; ++I) {
2218 const IdentifierInfo *Name = MacroInfosToEmit[I].Name;
2219 MacroInfo *MI = MacroInfosToEmit[I].MI;
2220 MacroID ID = MacroInfosToEmit[I].ID;
2221
2222 if (ID < FirstMacroID) {
2223 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2223, __PRETTY_FUNCTION__))
;
2224 continue;
2225 }
2226
2227 // Record the local offset of this macro.
2228 unsigned Index = ID - FirstMacroID;
2229 if (Index == MacroOffsets.size())
2230 MacroOffsets.push_back(Stream.GetCurrentBitNo());
2231 else {
2232 if (Index > MacroOffsets.size())
2233 MacroOffsets.resize(Index + 1);
2234
2235 MacroOffsets[Index] = Stream.GetCurrentBitNo();
2236 }
2237
2238 AddIdentifierRef(Name, Record);
2239 AddSourceLocation(MI->getDefinitionLoc(), Record);
2240 AddSourceLocation(MI->getDefinitionEndLoc(), Record);
2241 Record.push_back(MI->isUsed());
2242 Record.push_back(MI->isUsedForHeaderGuard());
2243 unsigned Code;
2244 if (MI->isObjectLike()) {
2245 Code = PP_MACRO_OBJECT_LIKE;
2246 } else {
2247 Code = PP_MACRO_FUNCTION_LIKE;
2248
2249 Record.push_back(MI->isC99Varargs());
2250 Record.push_back(MI->isGNUVarargs());
2251 Record.push_back(MI->hasCommaPasting());
2252 Record.push_back(MI->getNumParams());
2253 for (const IdentifierInfo *Param : MI->params())
2254 AddIdentifierRef(Param, Record);
2255 }
2256
2257 // If we have a detailed preprocessing record, record the macro definition
2258 // ID that corresponds to this macro.
2259 if (PPRec)
2260 Record.push_back(MacroDefinitions[PPRec->findMacroDefinition(MI)]);
2261
2262 Stream.EmitRecord(Code, Record);
2263 Record.clear();
2264
2265 // Emit the tokens array.
2266 for (unsigned TokNo = 0, e = MI->getNumTokens(); TokNo != e; ++TokNo) {
2267 // Note that we know that the preprocessor does not have any annotation
2268 // tokens in it because they are created by the parser, and thus can't
2269 // be in a macro definition.
2270 const Token &Tok = MI->getReplacementToken(TokNo);
2271 AddToken(Tok, Record);
2272 Stream.EmitRecord(PP_TOKEN, Record);
2273 Record.clear();
2274 }
2275 ++NumMacros;
2276 }
2277
2278 Stream.ExitBlock();
2279
2280 // Write the offsets table for macro IDs.
2281 using namespace llvm;
2282
2283 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2284 Abbrev->Add(BitCodeAbbrevOp(MACRO_OFFSET));
2285 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of macros
2286 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // first ID
2287 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2288
2289 unsigned MacroOffsetAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2290 {
2291 RecordData::value_type Record[] = {MACRO_OFFSET, MacroOffsets.size(),
2292 FirstMacroID - NUM_PREDEF_MACRO_IDS};
2293 Stream.EmitRecordWithBlob(MacroOffsetAbbrev, Record, bytes(MacroOffsets));
2294 }
2295}
2296
2297void ASTWriter::WritePreprocessorDetail(PreprocessingRecord &PPRec) {
2298 if (PPRec.local_begin() == PPRec.local_end())
2299 return;
2300
2301 SmallVector<PPEntityOffset, 64> PreprocessedEntityOffsets;
2302
2303 // Enter the preprocessor block.
2304 Stream.EnterSubblock(PREPROCESSOR_DETAIL_BLOCK_ID, 3);
2305
2306 // If the preprocessor has a preprocessing record, emit it.
2307 unsigned NumPreprocessingRecords = 0;
2308 using namespace llvm;
2309
2310 // Set up the abbreviation for
2311 unsigned InclusionAbbrev = 0;
2312 {
2313 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2314 Abbrev->Add(BitCodeAbbrevOp(PPD_INCLUSION_DIRECTIVE));
2315 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // filename length
2316 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // in quotes
2317 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // kind
2318 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // imported module
2319 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2320 InclusionAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2321 }
2322
2323 unsigned FirstPreprocessorEntityID
2324 = (Chain ? PPRec.getNumLoadedPreprocessedEntities() : 0)
2325 + NUM_PREDEF_PP_ENTITY_IDS;
2326 unsigned NextPreprocessorEntityID = FirstPreprocessorEntityID;
2327 RecordData Record;
2328 for (PreprocessingRecord::iterator E = PPRec.local_begin(),
2329 EEnd = PPRec.local_end();
2330 E != EEnd;
2331 (void)++E, ++NumPreprocessingRecords, ++NextPreprocessorEntityID) {
2332 Record.clear();
2333
2334 PreprocessedEntityOffsets.push_back(
2335 PPEntityOffset((*E)->getSourceRange(), Stream.GetCurrentBitNo()));
2336
2337 if (auto *MD = dyn_cast<MacroDefinitionRecord>(*E)) {
2338 // Record this macro definition's ID.
2339 MacroDefinitions[MD] = NextPreprocessorEntityID;
2340
2341 AddIdentifierRef(MD->getName(), Record);
2342 Stream.EmitRecord(PPD_MACRO_DEFINITION, Record);
2343 continue;
2344 }
2345
2346 if (auto *ME = dyn_cast<MacroExpansion>(*E)) {
2347 Record.push_back(ME->isBuiltinMacro());
2348 if (ME->isBuiltinMacro())
2349 AddIdentifierRef(ME->getName(), Record);
2350 else
2351 Record.push_back(MacroDefinitions[ME->getDefinition()]);
2352 Stream.EmitRecord(PPD_MACRO_EXPANSION, Record);
2353 continue;
2354 }
2355
2356 if (auto *ID = dyn_cast<InclusionDirective>(*E)) {
2357 Record.push_back(PPD_INCLUSION_DIRECTIVE);
2358 Record.push_back(ID->getFileName().size());
2359 Record.push_back(ID->wasInQuotes());
2360 Record.push_back(static_cast<unsigned>(ID->getKind()));
2361 Record.push_back(ID->importedModule());
2362 SmallString<64> Buffer;
2363 Buffer += ID->getFileName();
2364 // Check that the FileEntry is not null because it was not resolved and
2365 // we create a PCH even with compiler errors.
2366 if (ID->getFile())
2367 Buffer += ID->getFile()->getName();
2368 Stream.EmitRecordWithBlob(InclusionAbbrev, Record, Buffer);
2369 continue;
2370 }
2371
2372 llvm_unreachable("Unhandled PreprocessedEntity in ASTWriter")::llvm::llvm_unreachable_internal("Unhandled PreprocessedEntity in ASTWriter"
, "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2372)
;
2373 }
2374 Stream.ExitBlock();
2375
2376 // Write the offsets table for the preprocessing record.
2377 if (NumPreprocessingRecords > 0) {
2378 assert(PreprocessedEntityOffsets.size() == NumPreprocessingRecords)((PreprocessedEntityOffsets.size() == NumPreprocessingRecords
) ? static_cast<void> (0) : __assert_fail ("PreprocessedEntityOffsets.size() == NumPreprocessingRecords"
, "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2378, __PRETTY_FUNCTION__))
;
2379
2380 // Write the offsets table for identifier IDs.
2381 using namespace llvm;
2382
2383 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2384 Abbrev->Add(BitCodeAbbrevOp(PPD_ENTITIES_OFFSETS));
2385 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // first pp entity
2386 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2387 unsigned PPEOffsetAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2388
2389 RecordData::value_type Record[] = {PPD_ENTITIES_OFFSETS,
2390 FirstPreprocessorEntityID -
2391 NUM_PREDEF_PP_ENTITY_IDS};
2392 Stream.EmitRecordWithBlob(PPEOffsetAbbrev, Record,
2393 bytes(PreprocessedEntityOffsets));
2394 }
2395
2396 // Write the skipped region table for the preprocessing record.
2397 ArrayRef<SourceRange> SkippedRanges = PPRec.getSkippedRanges();
2398 if (SkippedRanges.size() > 0) {
2399 std::vector<PPSkippedRange> SerializedSkippedRanges;
2400 SerializedSkippedRanges.reserve(SkippedRanges.size());
2401 for (auto const& Range : SkippedRanges)
2402 SerializedSkippedRanges.emplace_back(Range);
2403
2404 using namespace llvm;
2405 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2406 Abbrev->Add(BitCodeAbbrevOp(PPD_SKIPPED_RANGES));
2407 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2408 unsigned PPESkippedRangeAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2409
2410 Record.clear();
2411 Record.push_back(PPD_SKIPPED_RANGES);
2412 Stream.EmitRecordWithBlob(PPESkippedRangeAbbrev, Record,
2413 bytes(SerializedSkippedRanges));
2414 }
2415}
2416
2417unsigned ASTWriter::getLocalOrImportedSubmoduleID(Module *Mod) {
2418 if (!Mod)
2419 return 0;
2420
2421 llvm::DenseMap<Module *, unsigned>::iterator Known = SubmoduleIDs.find(Mod);
2422 if (Known != SubmoduleIDs.end())
2423 return Known->second;
2424
2425 auto *Top = Mod->getTopLevelModule();
2426 if (Top != WritingModule &&
2427 (getLangOpts().CompilingPCH ||
2428 !Top->fullModuleNameIs(StringRef(getLangOpts().CurrentModule))))
2429 return 0;
2430
2431 return SubmoduleIDs[Mod] = NextSubmoduleID++;
2432}
2433
2434unsigned ASTWriter::getSubmoduleID(Module *Mod) {
2435 // FIXME: This can easily happen, if we have a reference to a submodule that
2436 // did not result in us loading a module file for that submodule. For
2437 // instance, a cross-top-level-module 'conflict' declaration will hit this.
2438 unsigned ID = getLocalOrImportedSubmoduleID(Mod);
2439 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2440, __PRETTY_FUNCTION__))
2440 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2440, __PRETTY_FUNCTION__))
;
2441 return ID;
2442}
2443
2444/// Compute the number of modules within the given tree (including the
2445/// given module).
2446static unsigned getNumberOfModules(Module *Mod) {
2447 unsigned ChildModules = 0;
2448 for (auto Sub = Mod->submodule_begin(), SubEnd = Mod->submodule_end();
2449 Sub != SubEnd; ++Sub)
2450 ChildModules += getNumberOfModules(*Sub);
2451
2452 return ChildModules + 1;
2453}
2454
2455void ASTWriter::WriteSubmodules(Module *WritingModule) {
2456 // Enter the submodule description block.
2457 Stream.EnterSubblock(SUBMODULE_BLOCK_ID, /*bits for abbreviations*/5);
2458
2459 // Write the abbreviations needed for the submodules block.
2460 using namespace llvm;
2461
2462 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2463 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_DEFINITION));
2464 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // ID
2465 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Parent
2466 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 2)); // Kind
2467 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFramework
2468 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsExplicit
2469 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsSystem
2470 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsExternC
2471 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InferSubmodules...
2472 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InferExplicit...
2473 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // InferExportWild...
2474 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ConfigMacrosExh...
2475 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // ModuleMapIsPriv...
2476 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2477 unsigned DefinitionAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2478
2479 Abbrev = std::make_shared<BitCodeAbbrev>();
2480 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_UMBRELLA_HEADER));
2481 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2482 unsigned UmbrellaAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2483
2484 Abbrev = std::make_shared<BitCodeAbbrev>();
2485 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_HEADER));
2486 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2487 unsigned HeaderAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2488
2489 Abbrev = std::make_shared<BitCodeAbbrev>();
2490 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_TOPHEADER));
2491 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2492 unsigned TopHeaderAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2493
2494 Abbrev = std::make_shared<BitCodeAbbrev>();
2495 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_UMBRELLA_DIR));
2496 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2497 unsigned UmbrellaDirAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2498
2499 Abbrev = std::make_shared<BitCodeAbbrev>();
2500 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_REQUIRES));
2501 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // State
2502 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Feature
2503 unsigned RequiresAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2504
2505 Abbrev = std::make_shared<BitCodeAbbrev>();
2506 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_EXCLUDED_HEADER));
2507 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2508 unsigned ExcludedHeaderAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2509
2510 Abbrev = std::make_shared<BitCodeAbbrev>();
2511 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_TEXTUAL_HEADER));
2512 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2513 unsigned TextualHeaderAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2514
2515 Abbrev = std::make_shared<BitCodeAbbrev>();
2516 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_PRIVATE_HEADER));
2517 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2518 unsigned PrivateHeaderAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2519
2520 Abbrev = std::make_shared<BitCodeAbbrev>();
2521 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_PRIVATE_TEXTUAL_HEADER));
2522 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2523 unsigned PrivateTextualHeaderAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2524
2525 Abbrev = std::make_shared<BitCodeAbbrev>();
2526 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_LINK_LIBRARY));
2527 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // IsFramework
2528 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Name
2529 unsigned LinkLibraryAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2530
2531 Abbrev = std::make_shared<BitCodeAbbrev>();
2532 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_CONFIG_MACRO));
2533 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Macro name
2534 unsigned ConfigMacroAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2535
2536 Abbrev = std::make_shared<BitCodeAbbrev>();
2537 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_CONFLICT));
2538 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Other module
2539 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Message
2540 unsigned ConflictAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2541
2542 Abbrev = std::make_shared<BitCodeAbbrev>();
2543 Abbrev->Add(BitCodeAbbrevOp(SUBMODULE_EXPORT_AS));
2544 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // Macro name
2545 unsigned ExportAsAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2546
2547 // Write the submodule metadata block.
2548 RecordData::value_type Record[] = {
2549 getNumberOfModules(WritingModule),
2550 FirstSubmoduleID - NUM_PREDEF_SUBMODULE_IDS};
2551 Stream.EmitRecord(SUBMODULE_METADATA, Record);
2552
2553 // Write all of the submodules.
2554 std::queue<Module *> Q;
2555 Q.push(WritingModule);
2556 while (!Q.empty()) {
2557 Module *Mod = Q.front();
2558 Q.pop();
2559 unsigned ID = getSubmoduleID(Mod);
2560
2561 uint64_t ParentID = 0;
2562 if (Mod->Parent) {
2563 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2563, __PRETTY_FUNCTION__))
;
2564 ParentID = SubmoduleIDs[Mod->Parent];
2565 }
2566
2567 // Emit the definition of the block.
2568 {
2569 RecordData::value_type Record[] = {SUBMODULE_DEFINITION,
2570 ID,
2571 ParentID,
2572 (RecordData::value_type)Mod->Kind,
2573 Mod->IsFramework,
2574 Mod->IsExplicit,
2575 Mod->IsSystem,
2576 Mod->IsExternC,
2577 Mod->InferSubmodules,
2578 Mod->InferExplicitSubmodules,
2579 Mod->InferExportWildcard,
2580 Mod->ConfigMacrosExhaustive,
2581 Mod->ModuleMapIsPrivate};
2582 Stream.EmitRecordWithBlob(DefinitionAbbrev, Record, Mod->Name);
2583 }
2584
2585 // Emit the requirements.
2586 for (const auto &R : Mod->Requirements) {
2587 RecordData::value_type Record[] = {SUBMODULE_REQUIRES, R.second};
2588 Stream.EmitRecordWithBlob(RequiresAbbrev, Record, R.first);
2589 }
2590
2591 // Emit the umbrella header, if there is one.
2592 if (auto UmbrellaHeader = Mod->getUmbrellaHeader()) {
2593 RecordData::value_type Record[] = {SUBMODULE_UMBRELLA_HEADER};
2594 Stream.EmitRecordWithBlob(UmbrellaAbbrev, Record,
2595 UmbrellaHeader.NameAsWritten);
2596 } else if (auto UmbrellaDir = Mod->getUmbrellaDir()) {
2597 RecordData::value_type Record[] = {SUBMODULE_UMBRELLA_DIR};
2598 Stream.EmitRecordWithBlob(UmbrellaDirAbbrev, Record,
2599 UmbrellaDir.NameAsWritten);
2600 }
2601
2602 // Emit the headers.
2603 struct {
2604 unsigned RecordKind;
2605 unsigned Abbrev;
2606 Module::HeaderKind HeaderKind;
2607 } HeaderLists[] = {
2608 {SUBMODULE_HEADER, HeaderAbbrev, Module::HK_Normal},
2609 {SUBMODULE_TEXTUAL_HEADER, TextualHeaderAbbrev, Module::HK_Textual},
2610 {SUBMODULE_PRIVATE_HEADER, PrivateHeaderAbbrev, Module::HK_Private},
2611 {SUBMODULE_PRIVATE_TEXTUAL_HEADER, PrivateTextualHeaderAbbrev,
2612 Module::HK_PrivateTextual},
2613 {SUBMODULE_EXCLUDED_HEADER, ExcludedHeaderAbbrev, Module::HK_Excluded}
2614 };
2615 for (auto &HL : HeaderLists) {
2616 RecordData::value_type Record[] = {HL.RecordKind};
2617 for (auto &H : Mod->Headers[HL.HeaderKind])
2618 Stream.EmitRecordWithBlob(HL.Abbrev, Record, H.NameAsWritten);
2619 }
2620
2621 // Emit the top headers.
2622 {
2623 auto TopHeaders = Mod->getTopHeaders(PP->getFileManager());
2624 RecordData::value_type Record[] = {SUBMODULE_TOPHEADER};
2625 for (auto *H : TopHeaders)
2626 Stream.EmitRecordWithBlob(TopHeaderAbbrev, Record, H->getName());
2627 }
2628
2629 // Emit the imports.
2630 if (!Mod->Imports.empty()) {
2631 RecordData Record;
2632 for (auto *I : Mod->Imports)
2633 Record.push_back(getSubmoduleID(I));
2634 Stream.EmitRecord(SUBMODULE_IMPORTS, Record);
2635 }
2636
2637 // Emit the exports.
2638 if (!Mod->Exports.empty()) {
2639 RecordData Record;
2640 for (const auto &E : Mod->Exports) {
2641 // FIXME: This may fail; we don't require that all exported modules
2642 // are local or imported.
2643 Record.push_back(getSubmoduleID(E.getPointer()));
2644 Record.push_back(E.getInt());
2645 }
2646 Stream.EmitRecord(SUBMODULE_EXPORTS, Record);
2647 }
2648
2649 //FIXME: How do we emit the 'use'd modules? They may not be submodules.
2650 // Might be unnecessary as use declarations are only used to build the
2651 // module itself.
2652
2653 // Emit the link libraries.
2654 for (const auto &LL : Mod->LinkLibraries) {
2655 RecordData::value_type Record[] = {SUBMODULE_LINK_LIBRARY,
2656 LL.IsFramework};
2657 Stream.EmitRecordWithBlob(LinkLibraryAbbrev, Record, LL.Library);
2658 }
2659
2660 // Emit the conflicts.
2661 for (const auto &C : Mod->Conflicts) {
2662 // FIXME: This may fail; we don't require that all conflicting modules
2663 // are local or imported.
2664 RecordData::value_type Record[] = {SUBMODULE_CONFLICT,
2665 getSubmoduleID(C.Other)};
2666 Stream.EmitRecordWithBlob(ConflictAbbrev, Record, C.Message);
2667 }
2668
2669 // Emit the configuration macros.
2670 for (const auto &CM : Mod->ConfigMacros) {
2671 RecordData::value_type Record[] = {SUBMODULE_CONFIG_MACRO};
2672 Stream.EmitRecordWithBlob(ConfigMacroAbbrev, Record, CM);
2673 }
2674
2675 // Emit the initializers, if any.
2676 RecordData Inits;
2677 for (Decl *D : Context->getModuleInitializers(Mod))
2678 Inits.push_back(GetDeclRef(D));
2679 if (!Inits.empty())
2680 Stream.EmitRecord(SUBMODULE_INITIALIZERS, Inits);
2681
2682 // Emit the name of the re-exported module, if any.
2683 if (!Mod->ExportAsModule.empty()) {
2684 RecordData::value_type Record[] = {SUBMODULE_EXPORT_AS};
2685 Stream.EmitRecordWithBlob(ExportAsAbbrev, Record, Mod->ExportAsModule);
2686 }
2687
2688 // Queue up the submodules of this module.
2689 for (auto *M : Mod->submodules())
2690 Q.push(M);
2691 }
2692
2693 Stream.ExitBlock();
2694
2695 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2698, __PRETTY_FUNCTION__))
2696 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2698, __PRETTY_FUNCTION__))
2697 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2698, __PRETTY_FUNCTION__))
2698 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2698, __PRETTY_FUNCTION__))
;
2699}
2700
2701void ASTWriter::WritePragmaDiagnosticMappings(const DiagnosticsEngine &Diag,
2702 bool isModule) {
2703 llvm::SmallDenseMap<const DiagnosticsEngine::DiagState *, unsigned, 64>
2704 DiagStateIDMap;
2705 unsigned CurrID = 0;
2706 RecordData Record;
2707
2708 auto EncodeDiagStateFlags =
2709 [](const DiagnosticsEngine::DiagState *DS) -> unsigned {
2710 unsigned Result = (unsigned)DS->ExtBehavior;
2711 for (unsigned Val :
2712 {(unsigned)DS->IgnoreAllWarnings, (unsigned)DS->EnableAllWarnings,
2713 (unsigned)DS->WarningsAsErrors, (unsigned)DS->ErrorsAsFatal,
2714 (unsigned)DS->SuppressSystemWarnings})
2715 Result = (Result << 1) | Val;
2716 return Result;
2717 };
2718
2719 unsigned Flags = EncodeDiagStateFlags(Diag.DiagStatesByLoc.FirstDiagState);
2720 Record.push_back(Flags);
2721
2722 auto AddDiagState = [&](const DiagnosticsEngine::DiagState *State,
2723 bool IncludeNonPragmaStates) {
2724 // Ensure that the diagnostic state wasn't modified since it was created.
2725 // We will not correctly round-trip this information otherwise.
2726 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2727, __PRETTY_FUNCTION__))
2727 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2727, __PRETTY_FUNCTION__))
;
2728
2729 unsigned &DiagStateID = DiagStateIDMap[State];
2730 Record.push_back(DiagStateID);
2731
2732 if (DiagStateID == 0) {
2733 DiagStateID = ++CurrID;
2734
2735 // Add a placeholder for the number of mappings.
2736 auto SizeIdx = Record.size();
2737 Record.emplace_back();
2738 for (const auto &I : *State) {
2739 if (I.second.isPragma() || IncludeNonPragmaStates) {
2740 Record.push_back(I.first);
2741 Record.push_back(I.second.serialize());
2742 }
2743 }
2744 // Update the placeholder.
2745 Record[SizeIdx] = (Record.size() - SizeIdx) / 2;
2746 }
2747 };
2748
2749 AddDiagState(Diag.DiagStatesByLoc.FirstDiagState, isModule);
2750
2751 // Reserve a spot for the number of locations with state transitions.
2752 auto NumLocationsIdx = Record.size();
2753 Record.emplace_back();
2754
2755 // Emit the state transitions.
2756 unsigned NumLocations = 0;
2757 for (auto &FileIDAndFile : Diag.DiagStatesByLoc.Files) {
2758 if (!FileIDAndFile.first.isValid() ||
2759 !FileIDAndFile.second.HasLocalTransitions)
2760 continue;
2761 ++NumLocations;
2762
2763 SourceLocation Loc = Diag.SourceMgr->getComposedLoc(FileIDAndFile.first, 0);
2764 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2764, __PRETTY_FUNCTION__))
;
2765 AddSourceLocation(Loc, Record);
2766
2767 Record.push_back(FileIDAndFile.second.StateTransitions.size());
2768 for (auto &StatePoint : FileIDAndFile.second.StateTransitions) {
2769 Record.push_back(StatePoint.Offset);
2770 AddDiagState(StatePoint.State, false);
2771 }
2772 }
2773
2774 // Backpatch the number of locations.
2775 Record[NumLocationsIdx] = NumLocations;
2776
2777 // Emit CurDiagStateLoc. Do it last in order to match source order.
2778 //
2779 // This also protects against a hypothetical corner case with simulating
2780 // -Werror settings for implicit modules in the ASTReader, where reading
2781 // CurDiagState out of context could change whether warning pragmas are
2782 // treated as errors.
2783 AddSourceLocation(Diag.DiagStatesByLoc.CurDiagStateLoc, Record);
2784 AddDiagState(Diag.DiagStatesByLoc.CurDiagState, false);
2785
2786 Stream.EmitRecord(DIAG_PRAGMA_MAPPINGS, Record);
2787}
2788
2789//===----------------------------------------------------------------------===//
2790// Type Serialization
2791//===----------------------------------------------------------------------===//
2792
2793/// Write the representation of a type to the AST stream.
2794void ASTWriter::WriteType(QualType T) {
2795 TypeIdx &IdxRef = TypeIdxs[T];
2796 if (IdxRef.getIndex() == 0) // we haven't seen this type before.
2797 IdxRef = TypeIdx(NextTypeID++);
2798 TypeIdx Idx = IdxRef;
2799
2800 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2800, __PRETTY_FUNCTION__))
;
2801
2802 // Emit the type's representation.
2803 uint64_t Offset = ASTTypeWriter(*this).write(T);
2804
2805 // Record the offset for this type.
2806 unsigned Index = Idx.getIndex() - FirstTypeID;
2807 if (TypeOffsets.size() == Index)
2808 TypeOffsets.push_back(Offset);
2809 else if (TypeOffsets.size() < Index) {
2810 TypeOffsets.resize(Index + 1);
2811 TypeOffsets[Index] = Offset;
2812 } else {
2813 llvm_unreachable("Types emitted in wrong order")::llvm::llvm_unreachable_internal("Types emitted in wrong order"
, "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2813)
;
2814 }
2815}
2816
2817//===----------------------------------------------------------------------===//
2818// Declaration Serialization
2819//===----------------------------------------------------------------------===//
2820
2821/// Write the block containing all of the declaration IDs
2822/// lexically declared within the given DeclContext.
2823///
2824/// \returns the offset of the DECL_CONTEXT_LEXICAL block within the
2825/// bitstream, or 0 if no block was written.
2826uint64_t ASTWriter::WriteDeclContextLexicalBlock(ASTContext &Context,
2827 DeclContext *DC) {
2828 if (DC->decls_empty())
2829 return 0;
2830
2831 uint64_t Offset = Stream.GetCurrentBitNo();
2832 SmallVector<uint32_t, 128> KindDeclPairs;
2833 for (const auto *D : DC->decls()) {
2834 KindDeclPairs.push_back(D->getKind());
2835 KindDeclPairs.push_back(GetDeclRef(D));
2836 }
2837
2838 ++NumLexicalDeclContexts;
2839 RecordData::value_type Record[] = {DECL_CONTEXT_LEXICAL};
2840 Stream.EmitRecordWithBlob(DeclContextLexicalAbbrev, Record,
2841 bytes(KindDeclPairs));
2842 return Offset;
2843}
2844
2845void ASTWriter::WriteTypeDeclOffsets() {
2846 using namespace llvm;
2847
2848 // Write the type offsets array
2849 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2850 Abbrev->Add(BitCodeAbbrevOp(TYPE_OFFSET));
2851 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of types
2852 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // base type index
2853 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // types block
2854 unsigned TypeOffsetAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2855 {
2856 RecordData::value_type Record[] = {TYPE_OFFSET, TypeOffsets.size(),
2857 FirstTypeID - NUM_PREDEF_TYPE_IDS};
2858 Stream.EmitRecordWithBlob(TypeOffsetAbbrev, Record, bytes(TypeOffsets));
2859 }
2860
2861 // Write the declaration offsets array
2862 Abbrev = std::make_shared<BitCodeAbbrev>();
2863 Abbrev->Add(BitCodeAbbrevOp(DECL_OFFSET));
2864 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of declarations
2865 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // base decl ID
2866 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob)); // declarations block
2867 unsigned DeclOffsetAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
2868 {
2869 RecordData::value_type Record[] = {DECL_OFFSET, DeclOffsets.size(),
2870 FirstDeclID - NUM_PREDEF_DECL_IDS};
2871 Stream.EmitRecordWithBlob(DeclOffsetAbbrev, Record, bytes(DeclOffsets));
2872 }
2873}
2874
2875void ASTWriter::WriteFileDeclIDsMap() {
2876 using namespace llvm;
2877
2878 SmallVector<std::pair<FileID, DeclIDInFileInfo *>, 64> SortedFileDeclIDs(
2879 FileDeclIDs.begin(), FileDeclIDs.end());
2880 llvm::sort(SortedFileDeclIDs, llvm::less_first());
2881
2882 // Join the vectors of DeclIDs from all files.
2883 SmallVector<DeclID, 256> FileGroupedDeclIDs;
2884 for (auto &FileDeclEntry : SortedFileDeclIDs) {
2885 DeclIDInFileInfo &Info = *FileDeclEntry.second;
2886 Info.FirstDeclIndex = FileGroupedDeclIDs.size();
2887 for (auto &LocDeclEntry : Info.DeclIDs)
2888 FileGroupedDeclIDs.push_back(LocDeclEntry.second);
2889 }
2890
2891 auto Abbrev = std::make_shared<BitCodeAbbrev>();
2892 Abbrev->Add(BitCodeAbbrevOp(FILE_SORTED_DECLS));
2893 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
2894 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
2895 unsigned AbbrevCode = Stream.EmitAbbrev(std::move(Abbrev));
2896 RecordData::value_type Record[] = {FILE_SORTED_DECLS,
2897 FileGroupedDeclIDs.size()};
2898 Stream.EmitRecordWithBlob(AbbrevCode, Record, bytes(FileGroupedDeclIDs));
2899}
2900
2901void ASTWriter::WriteComments() {
2902 Stream.EnterSubblock(COMMENTS_BLOCK_ID, 3);
2903 auto _ = llvm::make_scope_exit([this] { Stream.ExitBlock(); });
2904 if (!PP->getPreprocessorOpts().WriteCommentListToPCH)
2905 return;
2906 RecordData Record;
2907 for (const auto &FO : Context->Comments.OrderedComments) {
2908 for (const auto &OC : FO.second) {
2909 const RawComment *I = OC.second;
2910 Record.clear();
2911 AddSourceRange(I->getSourceRange(), Record);
2912 Record.push_back(I->getKind());
2913 Record.push_back(I->isTrailingComment());
2914 Record.push_back(I->isAlmostTrailingComment());
2915 Stream.EmitRecord(COMMENTS_RAW_COMMENT, Record);
2916 }
2917 }
2918}
2919
2920//===----------------------------------------------------------------------===//
2921// Global Method Pool and Selector Serialization
2922//===----------------------------------------------------------------------===//
2923
2924namespace {
2925
2926// Trait used for the on-disk hash table used in the method pool.
2927class ASTMethodPoolTrait {
2928 ASTWriter &Writer;
2929
2930public:
2931 using key_type = Selector;
2932 using key_type_ref = key_type;
2933
2934 struct data_type {
2935 SelectorID ID;
2936 ObjCMethodList Instance, Factory;
2937 };
2938 using data_type_ref = const data_type &;
2939
2940 using hash_value_type = unsigned;
2941 using offset_type = unsigned;
2942
2943 explicit ASTMethodPoolTrait(ASTWriter &Writer) : Writer(Writer) {}
2944
2945 static hash_value_type ComputeHash(Selector Sel) {
2946 return serialization::ComputeHash(Sel);
2947 }
2948
2949 std::pair<unsigned, unsigned>
2950 EmitKeyDataLength(raw_ostream& Out, Selector Sel,
2951 data_type_ref Methods) {
2952 using namespace llvm::support;
2953
2954 endian::Writer LE(Out, little);
2955 unsigned KeyLen = 2 + (Sel.getNumArgs()? Sel.getNumArgs() * 4 : 4);
2956 LE.write<uint16_t>(KeyLen);
2957 unsigned DataLen = 4 + 2 + 2; // 2 bytes for each of the method counts
2958 for (const ObjCMethodList *Method = &Methods.Instance; Method;
2959 Method = Method->getNext())
2960 if (Method->getMethod())
2961 DataLen += 4;
2962 for (const ObjCMethodList *Method = &Methods.Factory; Method;
2963 Method = Method->getNext())
2964 if (Method->getMethod())
2965 DataLen += 4;
2966 LE.write<uint16_t>(DataLen);
2967 return std::make_pair(KeyLen, DataLen);
2968 }
2969
2970 void EmitKey(raw_ostream& Out, Selector Sel, unsigned) {
2971 using namespace llvm::support;
2972
2973 endian::Writer LE(Out, little);
2974 uint64_t Start = Out.tell();
2975 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 2975, __PRETTY_FUNCTION__))
;
2976 Writer.SetSelectorOffset(Sel, Start);
2977 unsigned N = Sel.getNumArgs();
2978 LE.write<uint16_t>(N);
2979 if (N == 0)
2980 N = 1;
2981 for (unsigned I = 0; I != N; ++I)
2982 LE.write<uint32_t>(
2983 Writer.getIdentifierRef(Sel.getIdentifierInfoForSlot(I)));
2984 }
2985
2986 void EmitData(raw_ostream& Out, key_type_ref,
2987 data_type_ref Methods, unsigned DataLen) {
2988 using namespace llvm::support;
2989
2990 endian::Writer LE(Out, little);
2991 uint64_t Start = Out.tell(); (void)Start;
2992 LE.write<uint32_t>(Methods.ID);
2993 unsigned NumInstanceMethods = 0;
2994 for (const ObjCMethodList *Method = &Methods.Instance; Method;
2995 Method = Method->getNext())
2996 if (Method->getMethod())
2997 ++NumInstanceMethods;
2998
2999 unsigned NumFactoryMethods = 0;
3000 for (const ObjCMethodList *Method = &Methods.Factory; Method;
3001 Method = Method->getNext())
3002 if (Method->getMethod())
3003 ++NumFactoryMethods;
3004
3005 unsigned InstanceBits = Methods.Instance.getBits();
3006 assert(InstanceBits < 4)((InstanceBits < 4) ? static_cast<void> (0) : __assert_fail
("InstanceBits < 4", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3006, __PRETTY_FUNCTION__))
;
3007 unsigned InstanceHasMoreThanOneDeclBit =
3008 Methods.Instance.hasMoreThanOneDecl();
3009 unsigned FullInstanceBits = (NumInstanceMethods << 3) |
3010 (InstanceHasMoreThanOneDeclBit << 2) |
3011 InstanceBits;
3012 unsigned FactoryBits = Methods.Factory.getBits();
3013 assert(FactoryBits < 4)((FactoryBits < 4) ? static_cast<void> (0) : __assert_fail
("FactoryBits < 4", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3013, __PRETTY_FUNCTION__))
;
3014 unsigned FactoryHasMoreThanOneDeclBit =
3015 Methods.Factory.hasMoreThanOneDecl();
3016 unsigned FullFactoryBits = (NumFactoryMethods << 3) |
3017 (FactoryHasMoreThanOneDeclBit << 2) |
3018 FactoryBits;
3019 LE.write<uint16_t>(FullInstanceBits);
3020 LE.write<uint16_t>(FullFactoryBits);
3021 for (const ObjCMethodList *Method = &Methods.Instance; Method;
3022 Method = Method->getNext())
3023 if (Method->getMethod())
3024 LE.write<uint32_t>(Writer.getDeclID(Method->getMethod()));
3025 for (const ObjCMethodList *Method = &Methods.Factory; Method;
3026 Method = Method->getNext())
3027 if (Method->getMethod())
3028 LE.write<uint32_t>(Writer.getDeclID(Method->getMethod()));
3029
3030 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3030, __PRETTY_FUNCTION__))
;
3031 }
3032};
3033
3034} // namespace
3035
3036/// Write ObjC data: selectors and the method pool.
3037///
3038/// The method pool contains both instance and factory methods, stored
3039/// in an on-disk hash table indexed by the selector. The hash table also
3040/// contains an empty entry for every other selector known to Sema.
3041void ASTWriter::WriteSelectors(Sema &SemaRef) {
3042 using namespace llvm;
3043
3044 // Do we have to do anything at all?
3045 if (SemaRef.MethodPool.empty() && SelectorIDs.empty())
3046 return;
3047 unsigned NumTableEntries = 0;
3048 // Create and write out the blob that contains selectors and the method pool.
3049 {
3050 llvm::OnDiskChainedHashTableGenerator<ASTMethodPoolTrait> Generator;
3051 ASTMethodPoolTrait Trait(*this);
3052
3053 // Create the on-disk hash table representation. We walk through every
3054 // selector we've seen and look it up in the method pool.
3055 SelectorOffsets.resize(NextSelectorID - FirstSelectorID);
3056 for (auto &SelectorAndID : SelectorIDs) {
3057 Selector S = SelectorAndID.first;
3058 SelectorID ID = SelectorAndID.second;
3059 Sema::GlobalMethodPool::iterator F = SemaRef.MethodPool.find(S);
3060 ASTMethodPoolTrait::data_type Data = {
3061 ID,
3062 ObjCMethodList(),
3063 ObjCMethodList()
3064 };
3065 if (F != SemaRef.MethodPool.end()) {
3066 Data.Instance = F->second.first;
3067 Data.Factory = F->second.second;
3068 }
3069 // Only write this selector if it's not in an existing AST or something
3070 // changed.
3071 if (Chain && ID < FirstSelectorID) {
3072 // Selector already exists. Did it change?
3073 bool changed = false;
3074 for (ObjCMethodList *M = &Data.Instance;
3075 !changed && M && M->getMethod(); M = M->getNext()) {
3076 if (!M->getMethod()->isFromASTFile())
3077 changed = true;
3078 }
3079 for (ObjCMethodList *M = &Data.Factory; !changed && M && M->getMethod();
3080 M = M->getNext()) {
3081 if (!M->getMethod()->isFromASTFile())
3082 changed = true;
3083 }
3084 if (!changed)
3085 continue;
3086 } else if (Data.Instance.getMethod() || Data.Factory.getMethod()) {
3087 // A new method pool entry.
3088 ++NumTableEntries;
3089 }
3090 Generator.insert(S, Data, Trait);
3091 }
3092
3093 // Create the on-disk hash table in a buffer.
3094 SmallString<4096> MethodPool;
3095 uint32_t BucketOffset;
3096 {
3097 using namespace llvm::support;
3098
3099 ASTMethodPoolTrait Trait(*this);
3100 llvm::raw_svector_ostream Out(MethodPool);
3101 // Make sure that no bucket is at offset 0
3102 endian::write<uint32_t>(Out, 0, little);
3103 BucketOffset = Generator.Emit(Out, Trait);
3104 }
3105
3106 // Create a blob abbreviation
3107 auto Abbrev = std::make_shared<BitCodeAbbrev>();
3108 Abbrev->Add(BitCodeAbbrevOp(METHOD_POOL));
3109 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
3110 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
3111 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
3112 unsigned MethodPoolAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
3113
3114 // Write the method pool
3115 {
3116 RecordData::value_type Record[] = {METHOD_POOL, BucketOffset,
3117 NumTableEntries};
3118 Stream.EmitRecordWithBlob(MethodPoolAbbrev, Record, MethodPool);
3119 }
3120
3121 // Create a blob abbreviation for the selector table offsets.
3122 Abbrev = std::make_shared<BitCodeAbbrev>();
3123 Abbrev->Add(BitCodeAbbrevOp(SELECTOR_OFFSETS));
3124 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // size
3125 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // first ID
3126 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
3127 unsigned SelectorOffsetAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
3128
3129 // Write the selector offsets table.
3130 {
3131 RecordData::value_type Record[] = {
3132 SELECTOR_OFFSETS, SelectorOffsets.size(),
3133 FirstSelectorID - NUM_PREDEF_SELECTOR_IDS};
3134 Stream.EmitRecordWithBlob(SelectorOffsetAbbrev, Record,
3135 bytes(SelectorOffsets));
3136 }
3137 }
3138}
3139
3140/// Write the selectors referenced in @selector expression into AST file.
3141void ASTWriter::WriteReferencedSelectorsPool(Sema &SemaRef) {
3142 using namespace llvm;
3143
3144 if (SemaRef.ReferencedSelectors.empty())
3145 return;
3146
3147 RecordData Record;
3148 ASTRecordWriter Writer(*this, Record);
3149
3150 // Note: this writes out all references even for a dependent AST. But it is
3151 // very tricky to fix, and given that @selector shouldn't really appear in
3152 // headers, probably not worth it. It's not a correctness issue.
3153 for (auto &SelectorAndLocation : SemaRef.ReferencedSelectors) {
3154 Selector Sel = SelectorAndLocation.first;
3155 SourceLocation Loc = SelectorAndLocation.second;
3156 Writer.AddSelectorRef(Sel);
3157 Writer.AddSourceLocation(Loc);
3158 }
3159 Writer.Emit(REFERENCED_SELECTOR_POOL);
3160}
3161
3162//===----------------------------------------------------------------------===//
3163// Identifier Table Serialization
3164//===----------------------------------------------------------------------===//
3165
3166/// Determine the declaration that should be put into the name lookup table to
3167/// represent the given declaration in this module. This is usually D itself,
3168/// but if D was imported and merged into a local declaration, we want the most
3169/// recent local declaration instead. The chosen declaration will be the most
3170/// recent declaration in any module that imports this one.
3171static NamedDecl *getDeclForLocalLookup(const LangOptions &LangOpts,
3172 NamedDecl *D) {
3173 if (!LangOpts.Modules || !D->isFromASTFile())
3174 return D;
3175
3176 if (Decl *Redecl = D->getPreviousDecl()) {
3177 // For Redeclarable decls, a prior declaration might be local.
3178 for (; Redecl; Redecl = Redecl->getPreviousDecl()) {
3179 // If we find a local decl, we're done.
3180 if (!Redecl->isFromASTFile()) {
3181 // Exception: in very rare cases (for injected-class-names), not all
3182 // redeclarations are in the same semantic context. Skip ones in a
3183 // different context. They don't go in this lookup table at all.
3184 if (!Redecl->getDeclContext()->getRedeclContext()->Equals(
3185 D->getDeclContext()->getRedeclContext()))
3186 continue;
3187 return cast<NamedDecl>(Redecl);
3188 }
3189
3190 // If we find a decl from a (chained-)PCH stop since we won't find a
3191 // local one.
3192 if (Redecl->getOwningModuleID() == 0)
3193 break;
3194 }
3195 } else if (Decl *First = D->getCanonicalDecl()) {
3196 // For Mergeable decls, the first decl might be local.
3197 if (!First->isFromASTFile())
3198 return cast<NamedDecl>(First);
3199 }
3200
3201 // All declarations are imported. Our most recent declaration will also be
3202 // the most recent one in anyone who imports us.
3203 return D;
3204}
3205
3206namespace {
3207
3208class ASTIdentifierTableTrait {
3209 ASTWriter &Writer;
3210 Preprocessor &PP;
3211 IdentifierResolver &IdResolver;
3212 bool IsModule;
3213 bool NeedDecls;
3214 ASTWriter::RecordData *InterestingIdentifierOffsets;
3215
3216 /// Determines whether this is an "interesting" identifier that needs a
3217 /// full IdentifierInfo structure written into the hash table. Notably, this
3218 /// doesn't check whether the name has macros defined; use PublicMacroIterator
3219 /// to check that.
3220 bool isInterestingIdentifier(const IdentifierInfo *II, uint64_t MacroOffset) {
3221 if (MacroOffset ||
3222 II->isPoisoned() ||
3223 (IsModule ? II->hasRevertedBuiltin() : II->getObjCOrBuiltinID()) ||
3224 II->hasRevertedTokenIDToIdentifier() ||
3225 (NeedDecls && II->getFETokenInfo()))
3226 return true;
3227
3228 return false;
3229 }
3230
3231public:
3232 using key_type = IdentifierInfo *;
3233 using key_type_ref = key_type;
3234
3235 using data_type = IdentID;
3236 using data_type_ref = data_type;
3237
3238 using hash_value_type = unsigned;
3239 using offset_type = unsigned;
3240
3241 ASTIdentifierTableTrait(ASTWriter &Writer, Preprocessor &PP,
3242 IdentifierResolver &IdResolver, bool IsModule,
3243 ASTWriter::RecordData *InterestingIdentifierOffsets)
3244 : Writer(Writer), PP(PP), IdResolver(IdResolver), IsModule(IsModule),
3245 NeedDecls(!IsModule || !Writer.getLangOpts().CPlusPlus),
3246 InterestingIdentifierOffsets(InterestingIdentifierOffsets) {}
3247
3248 bool needDecls() const { return NeedDecls; }
3249
3250 static hash_value_type ComputeHash(const IdentifierInfo* II) {
3251 return llvm::djbHash(II->getName());
3252 }
3253
3254 bool isInterestingIdentifier(const IdentifierInfo *II) {
3255 auto MacroOffset = Writer.getMacroDirectivesOffset(II);
3256 return isInterestingIdentifier(II, MacroOffset);
3257 }
3258
3259 bool isInterestingNonMacroIdentifier(const IdentifierInfo *II) {
3260 return isInterestingIdentifier(II, 0);
3261 }
3262
3263 std::pair<unsigned, unsigned>
3264 EmitKeyDataLength(raw_ostream& Out, IdentifierInfo* II, IdentID ID) {
3265 unsigned KeyLen = II->getLength() + 1;
3266 unsigned DataLen = 4; // 4 bytes for the persistent ID << 1
3267 auto MacroOffset = Writer.getMacroDirectivesOffset(II);
3268 if (isInterestingIdentifier(II, MacroOffset)) {
3269 DataLen += 2; // 2 bytes for builtin ID
3270 DataLen += 2; // 2 bytes for flags
3271 if (MacroOffset)
3272 DataLen += 4; // MacroDirectives offset.
3273
3274 if (NeedDecls) {
3275 for (IdentifierResolver::iterator D = IdResolver.begin(II),
3276 DEnd = IdResolver.end();
3277 D != DEnd; ++D)
3278 DataLen += 4;
3279 }
3280 }
3281
3282 using namespace llvm::support;
3283
3284 endian::Writer LE(Out, little);
3285
3286 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3286, __PRETTY_FUNCTION__))
;
3287 LE.write<uint16_t>(DataLen);
3288 // We emit the key length after the data length so that every
3289 // string is preceded by a 16-bit length. This matches the PTH
3290 // format for storing identifiers.
3291 LE.write<uint16_t>(KeyLen);
3292 return std::make_pair(KeyLen, DataLen);
3293 }
3294
3295 void EmitKey(raw_ostream& Out, const IdentifierInfo* II,
3296 unsigned KeyLen) {
3297 // Record the location of the key data. This is used when generating
3298 // the mapping from persistent IDs to strings.
3299 Writer.SetIdentifierOffset(II, Out.tell());
3300
3301 // Emit the offset of the key/data length information to the interesting
3302 // identifiers table if necessary.
3303 if (InterestingIdentifierOffsets && isInterestingIdentifier(II))
3304 InterestingIdentifierOffsets->push_back(Out.tell() - 4);
3305
3306 Out.write(II->getNameStart(), KeyLen);
3307 }
3308
3309 void EmitData(raw_ostream& Out, IdentifierInfo* II,
3310 IdentID ID, unsigned) {
3311 using namespace llvm::support;
3312
3313 endian::Writer LE(Out, little);
3314
3315 auto MacroOffset = Writer.getMacroDirectivesOffset(II);
3316 if (!isInterestingIdentifier(II, MacroOffset)) {
3317 LE.write<uint32_t>(ID << 1);
3318 return;
3319 }
3320
3321 LE.write<uint32_t>((ID << 1) | 0x01);
3322 uint32_t Bits = (uint32_t)II->getObjCOrBuiltinID();
3323 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3323, __PRETTY_FUNCTION__))
;
3324 LE.write<uint16_t>(Bits);
3325 Bits = 0;
3326 bool HadMacroDefinition = MacroOffset != 0;
3327 Bits = (Bits << 1) | unsigned(HadMacroDefinition);
3328 Bits = (Bits << 1) | unsigned(II->isExtensionToken());
3329 Bits = (Bits << 1) | unsigned(II->isPoisoned());
3330 Bits = (Bits << 1) | unsigned(II->hasRevertedBuiltin());
3331 Bits = (Bits << 1) | unsigned(II->hasRevertedTokenIDToIdentifier());
3332 Bits = (Bits << 1) | unsigned(II->isCPlusPlusOperatorKeyword());
3333 LE.write<uint16_t>(Bits);
3334
3335 if (HadMacroDefinition)
3336 LE.write<uint32_t>(MacroOffset);
3337
3338 if (NeedDecls) {
3339 // Emit the declaration IDs in reverse order, because the
3340 // IdentifierResolver provides the declarations as they would be
3341 // visible (e.g., the function "stat" would come before the struct
3342 // "stat"), but the ASTReader adds declarations to the end of the list
3343 // (so we need to see the struct "stat" before the function "stat").
3344 // Only emit declarations that aren't from a chained PCH, though.
3345 SmallVector<NamedDecl *, 16> Decls(IdResolver.begin(II),
3346 IdResolver.end());
3347 for (SmallVectorImpl<NamedDecl *>::reverse_iterator D = Decls.rbegin(),
3348 DEnd = Decls.rend();
3349 D != DEnd; ++D)
3350 LE.write<uint32_t>(
3351 Writer.getDeclID(getDeclForLocalLookup(PP.getLangOpts(), *D)));
3352 }
3353 }
3354};
3355
3356} // namespace
3357
3358/// Write the identifier table into the AST file.
3359///
3360/// The identifier table consists of a blob containing string data
3361/// (the actual identifiers themselves) and a separate "offsets" index
3362/// that maps identifier IDs to locations within the blob.
3363void ASTWriter::WriteIdentifierTable(Preprocessor &PP,
3364 IdentifierResolver &IdResolver,
3365 bool IsModule) {
3366 using namespace llvm;
3367
3368 RecordData InterestingIdents;
3369
3370 // Create and write out the blob that contains the identifier
3371 // strings.
3372 {
3373 llvm::OnDiskChainedHashTableGenerator<ASTIdentifierTableTrait> Generator;
3374 ASTIdentifierTableTrait Trait(
3375 *this, PP, IdResolver, IsModule,
3376 (getLangOpts().CPlusPlus && IsModule) ? &InterestingIdents : nullptr);
3377
3378 // Look for any identifiers that were named while processing the
3379 // headers, but are otherwise not needed. We add these to the hash
3380 // table to enable checking of the predefines buffer in the case
3381 // where the user adds new macro definitions when building the AST
3382 // file.
3383 SmallVector<const IdentifierInfo *, 128> IIs;
3384 for (const auto &ID : PP.getIdentifierTable())
3385 IIs.push_back(ID.second);
3386 // Sort the identifiers lexicographically before getting them references so
3387 // that their order is stable.
3388 llvm::sort(IIs, llvm::deref<std::less<>>());
3389 for (const IdentifierInfo *II : IIs)
3390 if (Trait.isInterestingNonMacroIdentifier(II))
3391 getIdentifierRef(II);
3392
3393 // Create the on-disk hash table representation. We only store offsets
3394 // for identifiers that appear here for the first time.
3395 IdentifierOffsets.resize(NextIdentID - FirstIdentID);
3396 for (auto IdentIDPair : IdentifierIDs) {
3397 auto *II = const_cast<IdentifierInfo *>(IdentIDPair.first);
3398 IdentID ID = IdentIDPair.second;
3399 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3399, __PRETTY_FUNCTION__))
;
3400 // Write out identifiers if either the ID is local or the identifier has
3401 // changed since it was loaded.
3402 if (ID >= FirstIdentID || !Chain || !II->isFromAST()
3403 || II->hasChangedSinceDeserialization() ||
3404 (Trait.needDecls() &&
3405 II->hasFETokenInfoChangedSinceDeserialization()))
3406 Generator.insert(II, ID, Trait);
3407 }
3408
3409 // Create the on-disk hash table in a buffer.
3410 SmallString<4096> IdentifierTable;
3411 uint32_t BucketOffset;
3412 {
3413 using namespace llvm::support;
3414
3415 llvm::raw_svector_ostream Out(IdentifierTable);
3416 // Make sure that no bucket is at offset 0
3417 endian::write<uint32_t>(Out, 0, little);
3418 BucketOffset = Generator.Emit(Out, Trait);
3419 }
3420
3421 // Create a blob abbreviation
3422 auto Abbrev = std::make_shared<BitCodeAbbrev>();
3423 Abbrev->Add(BitCodeAbbrevOp(IDENTIFIER_TABLE));
3424 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32));
3425 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
3426 unsigned IDTableAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
3427
3428 // Write the identifier table
3429 RecordData::value_type Record[] = {IDENTIFIER_TABLE, BucketOffset};
3430 Stream.EmitRecordWithBlob(IDTableAbbrev, Record, IdentifierTable);
3431 }
3432
3433 // Write the offsets table for identifier IDs.
3434 auto Abbrev = std::make_shared<BitCodeAbbrev>();
3435 Abbrev->Add(BitCodeAbbrevOp(IDENTIFIER_OFFSET));
3436 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // # of identifiers
3437 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 32)); // first ID
3438 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
3439 unsigned IdentifierOffsetAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
3440
3441#ifndef NDEBUG
3442 for (unsigned I = 0, N = IdentifierOffsets.size(); I != N; ++I)
3443 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3443, __PRETTY_FUNCTION__))
;
3444#endif
3445
3446 RecordData::value_type Record[] = {IDENTIFIER_OFFSET,
3447 IdentifierOffsets.size(),
3448 FirstIdentID - NUM_PREDEF_IDENT_IDS};
3449 Stream.EmitRecordWithBlob(IdentifierOffsetAbbrev, Record,
3450 bytes(IdentifierOffsets));
3451
3452 // In C++, write the list of interesting identifiers (those that are
3453 // defined as macros, poisoned, or similar unusual things).
3454 if (!InterestingIdents.empty())
3455 Stream.EmitRecord(INTERESTING_IDENTIFIERS, InterestingIdents);
3456}
3457
3458//===----------------------------------------------------------------------===//
3459// DeclContext's Name Lookup Table Serialization
3460//===----------------------------------------------------------------------===//
3461
3462namespace {
3463
3464// Trait used for the on-disk hash table used in the method pool.
3465class ASTDeclContextNameLookupTrait {
3466 ASTWriter &Writer;
3467 llvm::SmallVector<DeclID, 64> DeclIDs;
3468
3469public:
3470 using key_type = DeclarationNameKey;
3471 using key_type_ref = key_type;
3472
3473 /// A start and end index into DeclIDs, representing a sequence of decls.
3474 using data_type = std::pair<unsigned, unsigned>;
3475 using data_type_ref = const data_type &;
3476
3477 using hash_value_type = unsigned;
3478 using offset_type = unsigned;
3479
3480 explicit ASTDeclContextNameLookupTrait(ASTWriter &Writer) : Writer(Writer) {}
3481
3482 template<typename Coll>
3483 data_type getData(const Coll &Decls) {
3484 unsigned Start = DeclIDs.size();
3485 for (NamedDecl *D : Decls) {
3486 DeclIDs.push_back(
3487 Writer.GetDeclRef(getDeclForLocalLookup(Writer.getLangOpts(), D)));
3488 }
3489 return std::make_pair(Start, DeclIDs.size());
3490 }
3491
3492 data_type ImportData(const reader::ASTDeclContextNameLookupTrait::data_type &FromReader) {
3493 unsigned Start = DeclIDs.size();
3494 for (auto ID : FromReader)
3495 DeclIDs.push_back(ID);
3496 return std::make_pair(Start, DeclIDs.size());
3497 }
3498
3499 static bool EqualKey(key_type_ref a, key_type_ref b) {
3500 return a == b;
3501 }
3502
3503 hash_value_type ComputeHash(DeclarationNameKey Name) {
3504 return Name.getHash();
3505 }
3506
3507 void EmitFileRef(raw_ostream &Out, ModuleFile *F) const {
3508 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3509, __PRETTY_FUNCTION__))
3509 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3509, __PRETTY_FUNCTION__))
;
3510
3511 using namespace llvm::support;
3512
3513 endian::write<uint32_t>(Out, Writer.getChain()->getModuleFileID(F), little);
3514 }
3515
3516 std::pair<unsigned, unsigned> EmitKeyDataLength(raw_ostream &Out,
3517 DeclarationNameKey Name,
3518 data_type_ref Lookup) {
3519 using namespace llvm::support;
3520
3521 endian::Writer LE(Out, little);
3522 unsigned KeyLen = 1;
3523 switch (Name.getKind()) {
3524 case DeclarationName::Identifier:
3525 case DeclarationName::ObjCZeroArgSelector:
3526 case DeclarationName::ObjCOneArgSelector:
3527 case DeclarationName::ObjCMultiArgSelector:
3528 case DeclarationName::CXXLiteralOperatorName:
3529 case DeclarationName::CXXDeductionGuideName:
3530 KeyLen += 4;
3531 break;
3532 case DeclarationName::CXXOperatorName:
3533 KeyLen += 1;
3534 break;
3535 case DeclarationName::CXXConstructorName:
3536 case DeclarationName::CXXDestructorName:
3537 case DeclarationName::CXXConversionFunctionName:
3538 case DeclarationName::CXXUsingDirective:
3539 break;
3540 }
3541 LE.write<uint16_t>(KeyLen);
3542
3543 // 4 bytes for each DeclID.
3544 unsigned DataLen = 4 * (Lookup.second - Lookup.first);
3545 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3546, __PRETTY_FUNCTION__))
3546 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3546, __PRETTY_FUNCTION__))
;
3547 LE.write<uint16_t>(DataLen);
3548
3549 return std::make_pair(KeyLen, DataLen);
3550 }
3551
3552 void EmitKey(raw_ostream &Out, DeclarationNameKey Name, unsigned) {
3553 using namespace llvm::support;
3554
3555 endian::Writer LE(Out, little);
3556 LE.write<uint8_t>(Name.getKind());
3557 switch (Name.getKind()) {
3558 case DeclarationName::Identifier:
3559 case DeclarationName::CXXLiteralOperatorName:
3560 case DeclarationName::CXXDeductionGuideName:
3561 LE.write<uint32_t>(Writer.getIdentifierRef(Name.getIdentifier()));
3562 return;
3563 case DeclarationName::ObjCZeroArgSelector:
3564 case DeclarationName::ObjCOneArgSelector:
3565 case DeclarationName::ObjCMultiArgSelector:
3566 LE.write<uint32_t>(Writer.getSelectorRef(Name.getSelector()));
3567 return;
3568 case DeclarationName::CXXOperatorName:
3569 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3570, __PRETTY_FUNCTION__))
3570 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3570, __PRETTY_FUNCTION__))
;
3571 LE.write<uint8_t>(Name.getOperatorKind());
3572 return;
3573 case DeclarationName::CXXConstructorName:
3574 case DeclarationName::CXXDestructorName:
3575 case DeclarationName::CXXConversionFunctionName:
3576 case DeclarationName::CXXUsingDirective:
3577 return;
3578 }
3579
3580 llvm_unreachable("Invalid name kind?")::llvm::llvm_unreachable_internal("Invalid name kind?", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3580)
;
3581 }
3582
3583 void EmitData(raw_ostream &Out, key_type_ref, data_type Lookup,
3584 unsigned DataLen) {
3585 using namespace llvm::support;
3586
3587 endian::Writer LE(Out, little);
3588 uint64_t Start = Out.tell(); (void)Start;
3589 for (unsigned I = Lookup.first, N = Lookup.second; I != N; ++I)
3590 LE.write<uint32_t>(DeclIDs[I]);
3591 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3591, __PRETTY_FUNCTION__))
;
3592 }
3593};
3594
3595} // namespace
3596
3597bool ASTWriter::isLookupResultExternal(StoredDeclsList &Result,
3598 DeclContext *DC) {
3599 return Result.hasExternalDecls() &&
3600 DC->hasNeedToReconcileExternalVisibleStorage();
3601}
3602
3603bool ASTWriter::isLookupResultEntirelyExternal(StoredDeclsList &Result,
3604 DeclContext *DC) {
3605 for (auto *D : Result.getLookupResult())
3606 if (!getDeclForLocalLookup(getLangOpts(), D)->isFromASTFile())
3607 return false;
3608
3609 return true;
3610}
3611
3612void
3613ASTWriter::GenerateNameLookupTable(const DeclContext *ConstDC,
3614 llvm::SmallVectorImpl<char> &LookupTable) {
3615 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3617, __PRETTY_FUNCTION__))
3616 !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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3617, __PRETTY_FUNCTION__))
3617 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3617, __PRETTY_FUNCTION__))
;
3618
3619 // FIXME: We need to build the lookups table, which is logically const.
3620 auto *DC = const_cast<DeclContext*>(ConstDC);
3621 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3621, __PRETTY_FUNCTION__))
;
3622
3623 // Create the on-disk hash table representation.
3624 MultiOnDiskHashTableGenerator<reader::ASTDeclContextNameLookupTrait,
3625 ASTDeclContextNameLookupTrait> Generator;
3626 ASTDeclContextNameLookupTrait Trait(*this);
3627
3628 // The first step is to collect the declaration names which we need to
3629 // serialize into the name lookup table, and to collect them in a stable
3630 // order.
3631 SmallVector<DeclarationName, 16> Names;
3632
3633 // We also build up small sets of the constructor and conversion function
3634 // names which are visible.
3635 llvm::SmallSet<DeclarationName, 8> ConstructorNameSet, ConversionNameSet;
3636
3637 for (auto &Lookup : *DC->buildLookup()) {
3638 auto &Name = Lookup.first;
3639 auto &Result = Lookup.second;
3640
3641 // If there are no local declarations in our lookup result, we
3642 // don't need to write an entry for the name at all. If we can't
3643 // write out a lookup set without performing more deserialization,
3644 // just skip this entry.
3645 if (isLookupResultExternal(Result, DC) &&
3646 isLookupResultEntirelyExternal(Result, DC))
3647 continue;
3648
3649 // We also skip empty results. If any of the results could be external and
3650 // the currently available results are empty, then all of the results are
3651 // external and we skip it above. So the only way we get here with an empty
3652 // results is when no results could have been external *and* we have
3653 // external results.
3654 //
3655 // FIXME: While we might want to start emitting on-disk entries for negative
3656 // lookups into a decl context as an optimization, today we *have* to skip
3657 // them because there are names with empty lookup results in decl contexts
3658 // which we can't emit in any stable ordering: we lookup constructors and
3659 // conversion functions in the enclosing namespace scope creating empty
3660 // results for them. This in almost certainly a bug in Clang's name lookup,
3661 // but that is likely to be hard or impossible to fix and so we tolerate it
3662 // here by omitting lookups with empty results.
3663 if (Lookup.second.getLookupResult().empty())
3664 continue;
3665
3666 switch (Lookup.first.getNameKind()) {
3667 default:
3668 Names.push_back(Lookup.first);
3669 break;
3670
3671 case DeclarationName::CXXConstructorName:
3672 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3673, __PRETTY_FUNCTION__))
3673 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3673, __PRETTY_FUNCTION__))
;
3674 ConstructorNameSet.insert(Name);
3675 break;
3676
3677 case DeclarationName::CXXConversionFunctionName:
3678 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3679, __PRETTY_FUNCTION__))
3679 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3679, __PRETTY_FUNCTION__))
;
3680 ConversionNameSet.insert(Name);
3681 break;
3682 }
3683 }
3684
3685 // Sort the names into a stable order.
3686 llvm::sort(Names);
3687
3688 if (auto *D = dyn_cast<CXXRecordDecl>(DC)) {
3689 // We need to establish an ordering of constructor and conversion function
3690 // names, and they don't have an intrinsic ordering.
3691
3692 // First we try the easy case by forming the current context's constructor
3693 // name and adding that name first. This is a very useful optimization to
3694 // avoid walking the lexical declarations in many cases, and it also
3695 // handles the only case where a constructor name can come from some other
3696 // lexical context -- when that name is an implicit constructor merged from
3697 // another declaration in the redecl chain. Any non-implicit constructor or
3698 // conversion function which doesn't occur in all the lexical contexts
3699 // would be an ODR violation.
3700 auto ImplicitCtorName = Context->DeclarationNames.getCXXConstructorName(
3701 Context->getCanonicalType(Context->getRecordType(D)));
3702 if (ConstructorNameSet.erase(ImplicitCtorName))
3703 Names.push_back(ImplicitCtorName);
3704
3705 // If we still have constructors or conversion functions, we walk all the
3706 // names in the decl and add the constructors and conversion functions
3707 // which are visible in the order they lexically occur within the context.
3708 if (!ConstructorNameSet.empty() || !ConversionNameSet.empty())
3709 for (Decl *ChildD : cast<CXXRecordDecl>(DC)->decls())
3710 if (auto *ChildND = dyn_cast<NamedDecl>(ChildD)) {
3711 auto Name = ChildND->getDeclName();
3712 switch (Name.getNameKind()) {
3713 default:
3714 continue;
3715
3716 case DeclarationName::CXXConstructorName:
3717 if (ConstructorNameSet.erase(Name))
3718 Names.push_back(Name);
3719 break;
3720
3721 case DeclarationName::CXXConversionFunctionName:
3722 if (ConversionNameSet.erase(Name))
3723 Names.push_back(Name);
3724 break;
3725 }
3726
3727 if (ConstructorNameSet.empty() && ConversionNameSet.empty())
3728 break;
3729 }
3730
3731 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3733, __PRETTY_FUNCTION__))
3732 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3733, __PRETTY_FUNCTION__))
3733 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3733, __PRETTY_FUNCTION__))
;
3734 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3736, __PRETTY_FUNCTION__))
3735 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3736, __PRETTY_FUNCTION__))
3736 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3736, __PRETTY_FUNCTION__))
;
3737 }
3738
3739 // Next we need to do a lookup with each name into this decl context to fully
3740 // populate any results from external sources. We don't actually use the
3741 // results of these lookups because we only want to use the results after all
3742 // results have been loaded and the pointers into them will be stable.
3743 for (auto &Name : Names)
3744 DC->lookup(Name);
3745
3746 // Now we need to insert the results for each name into the hash table. For
3747 // constructor names and conversion function names, we actually need to merge
3748 // all of the results for them into one list of results each and insert
3749 // those.
3750 SmallVector<NamedDecl *, 8> ConstructorDecls;
3751 SmallVector<NamedDecl *, 8> ConversionDecls;
3752
3753 // Now loop over the names, either inserting them or appending for the two
3754 // special cases.
3755 for (auto &Name : Names) {
3756 DeclContext::lookup_result Result = DC->noload_lookup(Name);
3757
3758 switch (Name.getNameKind()) {
3759 default:
3760 Generator.insert(Name, Trait.getData(Result), Trait);
3761 break;
3762
3763 case DeclarationName::CXXConstructorName:
3764 ConstructorDecls.append(Result.begin(), Result.end());
3765 break;
3766
3767 case DeclarationName::CXXConversionFunctionName:
3768 ConversionDecls.append(Result.begin(), Result.end());
3769 break;
3770 }
3771 }
3772
3773 // Handle our two special cases if we ended up having any. We arbitrarily use
3774 // the first declaration's name here because the name itself isn't part of
3775 // the key, only the kind of name is used.
3776 if (!ConstructorDecls.empty())
3777 Generator.insert(ConstructorDecls.front()->getDeclName(),
3778 Trait.getData(ConstructorDecls), Trait);
3779 if (!ConversionDecls.empty())
3780 Generator.insert(ConversionDecls.front()->getDeclName(),
3781 Trait.getData(ConversionDecls), Trait);
3782
3783 // Create the on-disk hash table. Also emit the existing imported and
3784 // merged table if there is one.
3785 auto *Lookups = Chain ? Chain->getLoadedLookupTables(DC) : nullptr;
3786 Generator.emit(LookupTable, Trait, Lookups ? &Lookups->Table : nullptr);
3787}
3788
3789/// Write the block containing all of the declaration IDs
3790/// visible from the given DeclContext.
3791///
3792/// \returns the offset of the DECL_CONTEXT_VISIBLE block within the
3793/// bitstream, or 0 if no block was written.
3794uint64_t ASTWriter::WriteDeclContextVisibleBlock(ASTContext &Context,
3795 DeclContext *DC) {
3796 // If we imported a key declaration of this namespace, write the visible
3797 // lookup results as an update record for it rather than including them
3798 // on this declaration. We will only look at key declarations on reload.
3799 if (isa<NamespaceDecl>(DC) && Chain &&
3800 Chain->getKeyDeclaration(cast<Decl>(DC))->isFromASTFile()) {
3801 // Only do this once, for the first local declaration of the namespace.
3802 for (auto *Prev = cast<NamespaceDecl>(DC)->getPreviousDecl(); Prev;
3803 Prev = Prev->getPreviousDecl())
3804 if (!Prev->isFromASTFile())
3805 return 0;
3806
3807 // Note that we need to emit an update record for the primary context.
3808 UpdatedDeclContexts.insert(DC->getPrimaryContext());
3809
3810 // Make sure all visible decls are written. They will be recorded later. We
3811 // do this using a side data structure so we can sort the names into
3812 // a deterministic order.
3813 StoredDeclsMap *Map = DC->getPrimaryContext()->buildLookup();
3814 SmallVector<std::pair<DeclarationName, DeclContext::lookup_result>, 16>
3815 LookupResults;
3816 if (Map) {
3817 LookupResults.reserve(Map->size());
3818 for (auto &Entry : *Map)
3819 LookupResults.push_back(
3820 std::make_pair(Entry.first, Entry.second.getLookupResult()));
3821 }
3822
3823 llvm::sort(LookupResults, llvm::less_first());
3824 for (auto &NameAndResult : LookupResults) {
3825 DeclarationName Name = NameAndResult.first;
3826 DeclContext::lookup_result Result = NameAndResult.second;
3827 if (Name.getNameKind() == DeclarationName::CXXConstructorName ||
3828 Name.getNameKind() == DeclarationName::CXXConversionFunctionName) {
3829 // We have to work around a name lookup bug here where negative lookup
3830 // results for these names get cached in namespace lookup tables (these
3831 // names should never be looked up in a namespace).
3832 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3833, __PRETTY_FUNCTION__))
3833 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 3833, __PRETTY_FUNCTION__))
;
3834 continue;
3835 }
3836
3837 for (NamedDecl *ND : Result)
3838 if (!ND->isFromASTFile())
3839 GetDeclRef(ND);
3840 }
3841
3842 return 0;
3843 }
3844
3845 if (DC->getPrimaryContext() != DC)
3846 return 0;
3847
3848 // Skip contexts which don't support name lookup.
3849 if (!DC->isLookupContext())
3850 return 0;
3851
3852 // If not in C++, we perform name lookup for the translation unit via the
3853 // IdentifierInfo chains, don't bother to build a visible-declarations table.
3854 if (DC->isTranslationUnit() && !Context.getLangOpts().CPlusPlus)
3855 return 0;
3856
3857 // Serialize the contents of the mapping used for lookup. Note that,
3858 // although we have two very different code paths, the serialized
3859 // representation is the same for both cases: a declaration name,
3860 // followed by a size, followed by references to the visible
3861 // declarations that have that name.
3862 uint64_t Offset = Stream.GetCurrentBitNo();
3863 StoredDeclsMap *Map = DC->buildLookup();
3864 if (!Map || Map->empty())
3865 return 0;
3866
3867 // Create the on-disk hash table in a buffer.
3868 SmallString<4096> LookupTable;
3869 GenerateNameLookupTable(DC, LookupTable);
3870
3871 // Write the lookup table
3872 RecordData::value_type Record[] = {DECL_CONTEXT_VISIBLE};
3873 Stream.EmitRecordWithBlob(DeclContextVisibleLookupAbbrev, Record,
3874 LookupTable);
3875 ++NumVisibleDeclContexts;
3876 return Offset;
3877}
3878
3879/// Write an UPDATE_VISIBLE block for the given context.
3880///
3881/// UPDATE_VISIBLE blocks contain the declarations that are added to an existing
3882/// DeclContext in a dependent AST file. As such, they only exist for the TU
3883/// (in C++), for namespaces, and for classes with forward-declared unscoped
3884/// enumeration members (in C++11).
3885void ASTWriter::WriteDeclContextVisibleUpdate(const DeclContext *DC) {
3886 StoredDeclsMap *Map = DC->getLookupPtr();
3887 if (!Map || Map->empty())
3888 return;
3889
3890 // Create the on-disk hash table in a buffer.
3891 SmallString<4096> LookupTable;
3892 GenerateNameLookupTable(DC, LookupTable);
3893
3894 // If we're updating a namespace, select a key declaration as the key for the
3895 // update record; those are the only ones that will be checked on reload.
3896 if (isa<NamespaceDecl>(DC))
3897 DC = cast<DeclContext>(Chain->getKeyDeclaration(cast<Decl>(DC)));
3898
3899 // Write the lookup table
3900 RecordData::value_type Record[] = {UPDATE_VISIBLE, getDeclID(cast<Decl>(DC))};
3901 Stream.EmitRecordWithBlob(UpdateVisibleAbbrev, Record, LookupTable);
3902}
3903
3904/// Write an FP_PRAGMA_OPTIONS block for the given FPOptions.
3905void ASTWriter::WriteFPPragmaOptions(const FPOptions &Opts) {
3906 RecordData::value_type Record[] = {Opts.getInt()};
3907 Stream.EmitRecord(FP_PRAGMA_OPTIONS, Record);
3908}
3909
3910/// Write an OPENCL_EXTENSIONS block for the given OpenCLOptions.
3911void ASTWriter::WriteOpenCLExtensions(Sema &SemaRef) {
3912 if (!SemaRef.Context.getLangOpts().OpenCL)
3913 return;
3914
3915 const OpenCLOptions &Opts = SemaRef.getOpenCLOptions();
3916 RecordData Record;
3917 for (const auto &I:Opts.OptMap) {
3918 AddString(I.getKey(), Record);
3919 auto V = I.getValue();
3920 Record.push_back(V.Supported ? 1 : 0);
3921 Record.push_back(V.Enabled ? 1 : 0);
3922 Record.push_back(V.Avail);
3923 Record.push_back(V.Core);
3924 }
3925 Stream.EmitRecord(OPENCL_EXTENSIONS, Record);
3926}
3927
3928void ASTWriter::WriteOpenCLExtensionTypes(Sema &SemaRef) {
3929 if (!SemaRef.Context.getLangOpts().OpenCL)
3930 return;
3931
3932 // Sort the elements of the map OpenCLTypeExtMap by TypeIDs,
3933 // without copying them.
3934 const llvm::DenseMap<const Type *, std::set<std::string>> &OpenCLTypeExtMap =
3935 SemaRef.OpenCLTypeExtMap;
3936 using ElementTy = std::pair<TypeID, const std::set<std::string> *>;
3937 llvm::SmallVector<ElementTy, 8> StableOpenCLTypeExtMap;
3938 StableOpenCLTypeExtMap.reserve(OpenCLTypeExtMap.size());
3939
3940 for (const auto &I : OpenCLTypeExtMap)
3941 StableOpenCLTypeExtMap.emplace_back(
3942 getTypeID(I.first->getCanonicalTypeInternal()), &I.second);
3943
3944 auto CompareByTypeID = [](const ElementTy &E1, const ElementTy &E2) -> bool {
3945 return E1.first < E2.first;
3946 };
3947 llvm::sort(StableOpenCLTypeExtMap, CompareByTypeID);
3948
3949 RecordData Record;
3950 for (const ElementTy &E : StableOpenCLTypeExtMap) {
3951 Record.push_back(E.first); // TypeID
3952 const std::set<std::string> *ExtSet = E.second;
3953 Record.push_back(static_cast<unsigned>(ExtSet->size()));
3954 for (const std::string &Ext : *ExtSet)
3955 AddString(Ext, Record);
3956 }
3957
3958 Stream.EmitRecord(OPENCL_EXTENSION_TYPES, Record);
3959}
3960
3961void ASTWriter::WriteOpenCLExtensionDecls(Sema &SemaRef) {
3962 if (!SemaRef.Context.getLangOpts().OpenCL)
3963 return;
3964
3965 // Sort the elements of the map OpenCLDeclExtMap by DeclIDs,
3966 // without copying them.
3967 const llvm::DenseMap<const Decl *, std::set<std::string>> &OpenCLDeclExtMap =
3968 SemaRef.OpenCLDeclExtMap;
3969 using ElementTy = std::pair<DeclID, const std::set<std::string> *>;
3970 llvm::SmallVector<ElementTy, 8> StableOpenCLDeclExtMap;
3971 StableOpenCLDeclExtMap.reserve(OpenCLDeclExtMap.size());
3972
3973 for (const auto &I : OpenCLDeclExtMap)
3974 StableOpenCLDeclExtMap.emplace_back(getDeclID(I.first), &I.second);
3975
3976 auto CompareByDeclID = [](const ElementTy &E1, const ElementTy &E2) -> bool {
3977 return E1.first < E2.first;
3978 };
3979 llvm::sort(StableOpenCLDeclExtMap, CompareByDeclID);
3980
3981 RecordData Record;
3982 for (const ElementTy &E : StableOpenCLDeclExtMap) {
3983 Record.push_back(E.first); // DeclID
3984 const std::set<std::string> *ExtSet = E.second;
3985 Record.push_back(static_cast<unsigned>(ExtSet->size()));
3986 for (const std::string &Ext : *ExtSet)
3987 AddString(Ext, Record);
3988 }
3989
3990 Stream.EmitRecord(OPENCL_EXTENSION_DECLS, Record);
3991}
3992
3993void ASTWriter::WriteCUDAPragmas(Sema &SemaRef) {
3994 if (SemaRef.ForceCUDAHostDeviceDepth > 0) {
3995 RecordData::value_type Record[] = {SemaRef.ForceCUDAHostDeviceDepth};
3996 Stream.EmitRecord(CUDA_PRAGMA_FORCE_HOST_DEVICE_DEPTH, Record);
3997 }
3998}
3999
4000void ASTWriter::WriteObjCCategories() {
4001 SmallVector<ObjCCategoriesInfo, 2> CategoriesMap;
4002 RecordData Categories;
4003
4004 for (unsigned I = 0, N = ObjCClassesWithCategories.size(); I != N; ++I) {
4005 unsigned Size = 0;
4006 unsigned StartIndex = Categories.size();
4007
4008 ObjCInterfaceDecl *Class = ObjCClassesWithCategories[I];
4009
4010 // Allocate space for the size.
4011 Categories.push_back(0);
4012
4013 // Add the categories.
4014 for (ObjCInterfaceDecl::known_categories_iterator
4015 Cat = Class->known_categories_begin(),
4016 CatEnd = Class->known_categories_end();
4017 Cat != CatEnd; ++Cat, ++Size) {
4018 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 4018, __PRETTY_FUNCTION__))
;
4019 AddDeclRef(*Cat, Categories);
4020 }
4021
4022 // Update the size.
4023 Categories[StartIndex] = Size;
4024
4025 // Record this interface -> category map.
4026 ObjCCategoriesInfo CatInfo = { getDeclID(Class), StartIndex };
4027 CategoriesMap.push_back(CatInfo);
4028 }
4029
4030 // Sort the categories map by the definition ID, since the reader will be
4031 // performing binary searches on this information.
4032 llvm::array_pod_sort(CategoriesMap.begin(), CategoriesMap.end());
4033
4034 // Emit the categories map.
4035 using namespace llvm;
4036
4037 auto Abbrev = std::make_shared<BitCodeAbbrev>();
4038 Abbrev->Add(BitCodeAbbrevOp(OBJC_CATEGORIES_MAP));
4039 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // # of entries
4040 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
4041 unsigned AbbrevID = Stream.EmitAbbrev(std::move(Abbrev));
4042
4043 RecordData::value_type Record[] = {OBJC_CATEGORIES_MAP, CategoriesMap.size()};
4044 Stream.EmitRecordWithBlob(AbbrevID, Record,
4045 reinterpret_cast<char *>(CategoriesMap.data()),
4046 CategoriesMap.size() * sizeof(ObjCCategoriesInfo));
4047
4048 // Emit the category lists.
4049 Stream.EmitRecord(OBJC_CATEGORIES, Categories);
4050}
4051
4052void ASTWriter::WriteLateParsedTemplates(Sema &SemaRef) {
4053 Sema::LateParsedTemplateMapT &LPTMap = SemaRef.LateParsedTemplateMap;
4054
4055 if (LPTMap.empty())
4056 return;
4057
4058 RecordData Record;
4059 for (auto &LPTMapEntry : LPTMap) {
4060 const FunctionDecl *FD = LPTMapEntry.first;
4061 LateParsedTemplate &LPT = *LPTMapEntry.second;
4062 AddDeclRef(FD, Record);
4063 AddDeclRef(LPT.D, Record);
4064 Record.push_back(LPT.Toks.size());
4065
4066 for (const auto &Tok : LPT.Toks) {
4067 AddToken(Tok, Record);
4068 }
4069 }
4070 Stream.EmitRecord(LATE_PARSED_TEMPLATE, Record);
4071}
4072
4073/// Write the state of 'pragma clang optimize' at the end of the module.
4074void ASTWriter::WriteOptimizePragmaOptions(Sema &SemaRef) {
4075 RecordData Record;
4076 SourceLocation PragmaLoc = SemaRef.getOptimizeOffPragmaLocation();
4077 AddSourceLocation(PragmaLoc, Record);
4078 Stream.EmitRecord(OPTIMIZE_PRAGMA_OPTIONS, Record);
4079}
4080
4081/// Write the state of 'pragma ms_struct' at the end of the module.
4082void ASTWriter::WriteMSStructPragmaOptions(Sema &SemaRef) {
4083 RecordData Record;
4084 Record.push_back(SemaRef.MSStructPragmaOn ? PMSST_ON : PMSST_OFF);
4085 Stream.EmitRecord(MSSTRUCT_PRAGMA_OPTIONS, Record);
4086}
4087
4088/// Write the state of 'pragma pointers_to_members' at the end of the
4089//module.
4090void ASTWriter::WriteMSPointersToMembersPragmaOptions(Sema &SemaRef) {
4091 RecordData Record;
4092 Record.push_back(SemaRef.MSPointerToMemberRepresentationMethod);
4093 AddSourceLocation(SemaRef.ImplicitMSInheritanceAttrLoc, Record);
4094 Stream.EmitRecord(POINTERS_TO_MEMBERS_PRAGMA_OPTIONS, Record);
4095}
4096
4097/// Write the state of 'pragma pack' at the end of the module.
4098void ASTWriter::WritePackPragmaOptions(Sema &SemaRef) {
4099 // Don't serialize pragma pack state for modules, since it should only take
4100 // effect on a per-submodule basis.
4101 if (WritingModule)
4102 return;
4103
4104 RecordData Record;
4105 Record.push_back(SemaRef.PackStack.CurrentValue);
4106 AddSourceLocation(SemaRef.PackStack.CurrentPragmaLocation, Record);
4107 Record.push_back(SemaRef.PackStack.Stack.size());
4108 for (const auto &StackEntry : SemaRef.PackStack.Stack) {
4109 Record.push_back(StackEntry.Value);
4110 AddSourceLocation(StackEntry.PragmaLocation, Record);
4111 AddSourceLocation(StackEntry.PragmaPushLocation, Record);
4112 AddString(StackEntry.StackSlotLabel, Record);
4113 }
4114 Stream.EmitRecord(PACK_PRAGMA_OPTIONS, Record);
4115}
4116
4117void ASTWriter::WriteModuleFileExtension(Sema &SemaRef,
4118 ModuleFileExtensionWriter &Writer) {
4119 // Enter the extension block.
4120 Stream.EnterSubblock(EXTENSION_BLOCK_ID, 4);
4121
4122 // Emit the metadata record abbreviation.
4123 auto Abv = std::make_shared<llvm::BitCodeAbbrev>();
4124 Abv->Add(llvm::BitCodeAbbrevOp(EXTENSION_METADATA));
4125 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::VBR, 6));
4126 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::VBR, 6));
4127 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::VBR, 6));
4128 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::VBR, 6));
4129 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Blob));
4130 unsigned Abbrev = Stream.EmitAbbrev(std::move(Abv));
4131
4132 // Emit the metadata record.
4133 RecordData Record;
4134 auto Metadata = Writer.getExtension()->getExtensionMetadata();
4135 Record.push_back(EXTENSION_METADATA);
4136 Record.push_back(Metadata.MajorVersion);
4137 Record.push_back(Metadata.MinorVersion);
4138 Record.push_back(Metadata.BlockName.size());
4139 Record.push_back(Metadata.UserInfo.size());
4140 SmallString<64> Buffer;
4141 Buffer += Metadata.BlockName;
4142 Buffer += Metadata.UserInfo;
4143 Stream.EmitRecordWithBlob(Abbrev, Record, Buffer);
4144
4145 // Emit the contents of the extension block.
4146 Writer.writeExtensionContents(SemaRef, Stream);
4147
4148 // Exit the extension block.
4149 Stream.ExitBlock();
4150}
4151
4152//===----------------------------------------------------------------------===//
4153// General Serialization Routines
4154//===----------------------------------------------------------------------===//
4155
4156void ASTRecordWriter::AddAttr(const Attr *A) {
4157 auto &Record = *this;
4158 if (!A)
4159 return Record.push_back(0);
4160 Record.push_back(A->getKind() + 1); // FIXME: stable encoding, target attrs
4161
4162 Record.AddIdentifierRef(A->getAttrName());
4163 Record.AddIdentifierRef(A->getScopeName());
4164 Record.AddSourceRange(A->getRange());
4165 Record.AddSourceLocation(A->getScopeLoc());
4166 Record.push_back(A->getParsedKind());
4167 Record.push_back(A->getSyntax());
4168 Record.push_back(A->getAttributeSpellingListIndexRaw());
4169
4170#include "clang/Serialization/AttrPCHWrite.inc"
4171}
4172
4173/// Emit the list of attributes to the specified record.
4174void ASTRecordWriter::AddAttributes(ArrayRef<const Attr *> Attrs) {
4175 push_back(Attrs.size());
4176 for (const auto *A : Attrs)
4177 AddAttr(A);
4178}
4179
4180void ASTWriter::AddToken(const Token &Tok, RecordDataImpl &Record) {
4181 AddSourceLocation(Tok.getLocation(), Record);
4182 Record.push_back(Tok.getLength());
4183
4184 // FIXME: When reading literal tokens, reconstruct the literal pointer
4185 // if it is needed.
4186 AddIdentifierRef(Tok.getIdentifierInfo(), Record);
4187 // FIXME: Should translate token kind to a stable encoding.
4188 Record.push_back(Tok.getKind());
4189 // FIXME: Should translate token flags to a stable encoding.
4190 Record.push_back(Tok.getFlags());
4191}
4192
4193void ASTWriter::AddString(StringRef Str, RecordDataImpl &Record) {
4194 Record.push_back(Str.size());
4195 Record.insert(Record.end(), Str.begin(), Str.end());
4196}
4197
4198bool ASTWriter::PreparePathForOutput(SmallVectorImpl<char> &Path) {
4199 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 4199, __PRETTY_FUNCTION__))
;
4200
4201 bool Changed =
4202 cleanPathForOutput(Context->getSourceManager().getFileManager(), Path);
4203
4204 // Remove a prefix to make the path relative, if relevant.
4205 const char *PathBegin = Path.data();
4206 const char *PathPtr =
4207 adjustFilenameForRelocatableAST(PathBegin, BaseDirectory);
4208 if (PathPtr != PathBegin) {
4209 Path.erase(Path.begin(), Path.begin() + (PathPtr - PathBegin));
4210 Changed = true;
4211 }
4212
4213 return Changed;
4214}
4215
4216void ASTWriter::AddPath(StringRef Path, RecordDataImpl &Record) {
4217 SmallString<128> FilePath(Path);
4218 PreparePathForOutput(FilePath);
4219 AddString(FilePath, Record);
4220}
4221
4222void ASTWriter::EmitRecordWithPath(unsigned Abbrev, RecordDataRef Record,
4223 StringRef Path) {
4224 SmallString<128> FilePath(Path);
4225 PreparePathForOutput(FilePath);
4226 Stream.EmitRecordWithBlob(Abbrev, Record, FilePath);
4227}
4228
4229void ASTWriter::AddVersionTuple(const VersionTuple &Version,
4230 RecordDataImpl &Record) {
4231 Record.push_back(Version.getMajor());
4232 if (Optional<unsigned> Minor = Version.getMinor())
4233 Record.push_back(*Minor + 1);
4234 else
4235 Record.push_back(0);
4236 if (Optional<unsigned> Subminor = Version.getSubminor())
4237 Record.push_back(*Subminor + 1);
4238 else
4239 Record.push_back(0);
4240}
4241
4242/// Note that the identifier II occurs at the given offset
4243/// within the identifier table.
4244void ASTWriter::SetIdentifierOffset(const IdentifierInfo *II, uint32_t Offset) {
4245 IdentID ID = IdentifierIDs[II];
4246 // Only store offsets new to this AST file. Other identifier names are looked
4247 // up earlier in the chain and thus don't need an offset.
4248 if (ID >= FirstIdentID)
4249 IdentifierOffsets[ID - FirstIdentID] = Offset;
4250}
4251
4252/// Note that the selector Sel occurs at the given offset
4253/// within the method pool/selector table.
4254void ASTWriter::SetSelectorOffset(Selector Sel, uint32_t Offset) {
4255 unsigned ID = SelectorIDs[Sel];
4256 assert(ID && "Unknown selector")((ID && "Unknown selector") ? static_cast<void>
(0) : __assert_fail ("ID && \"Unknown selector\"", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 4256, __PRETTY_FUNCTION__))
;
4257 // Don't record offsets for selectors that are also available in a different
4258 // file.
4259 if (ID < FirstSelectorID)
4260 return;
4261 SelectorOffsets[ID - FirstSelectorID] = Offset;
4262}
4263
4264ASTWriter::ASTWriter(llvm::BitstreamWriter &Stream,
4265 SmallVectorImpl<char> &Buffer,
4266 InMemoryModuleCache &ModuleCache,
4267 ArrayRef<std::shared_ptr<ModuleFileExtension>> Extensions,
4268 bool IncludeTimestamps)
4269 : Stream(Stream), Buffer(Buffer), ModuleCache(ModuleCache),
4270 IncludeTimestamps(IncludeTimestamps) {
4271 for (const auto &Ext : Extensions) {
4272 if (auto Writer = Ext->createExtensionWriter(*this))
4273 ModuleFileExtensionWriters.push_back(std::move(Writer));
4274 }
4275}
4276
4277ASTWriter::~ASTWriter() {
4278 llvm::DeleteContainerSeconds(FileDeclIDs);
4279}
4280
4281const LangOptions &ASTWriter::getLangOpts() const {
4282 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 4282, __PRETTY_FUNCTION__))
;
4283 return Context->getLangOpts();
4284}
4285
4286time_t ASTWriter::getTimestampForOutput(const FileEntry *E) const {
4287 return IncludeTimestamps ? E->getModificationTime() : 0;
4288}
4289
4290ASTFileSignature ASTWriter::WriteAST(Sema &SemaRef,
4291 const std::string &OutputFile,
4292 Module *WritingModule, StringRef isysroot,
4293 bool hasErrors,
4294 bool ShouldCacheASTInMemory) {
4295 WritingAST = true;
4296
4297 ASTHasCompilerErrors = hasErrors;
4298
4299 // Emit the file header.
4300 Stream.Emit((unsigned)'C', 8);
4301 Stream.Emit((unsigned)'P', 8);
4302 Stream.Emit((unsigned)'C', 8);
4303 Stream.Emit((unsigned)'H', 8);
4304
4305 WriteBlockInfoBlock();
4306
4307 Context = &SemaRef.Context;
4308 PP = &SemaRef.PP;
4309 this->WritingModule = WritingModule;
4310 ASTFileSignature Signature =
4311 WriteASTCore(SemaRef, isysroot, OutputFile, WritingModule);
4312 Context = nullptr;
4313 PP = nullptr;
4314 this->WritingModule = nullptr;
4315 this->BaseDirectory.clear();
4316
4317 WritingAST = false;
4318 if (ShouldCacheASTInMemory) {
4319 // Construct MemoryBuffer and update buffer manager.
4320 ModuleCache.addFinalPCM(OutputFile,
4321 llvm::MemoryBuffer::getMemBufferCopy(
4322 StringRef(Buffer.begin(), Buffer.size())));
4323 }
4324 return Signature;
4325}
4326
4327template<typename Vector>
4328static void AddLazyVectorDecls(ASTWriter &Writer, Vector &Vec,
4329 ASTWriter::RecordData &Record) {
4330 for (typename Vector::iterator I = Vec.begin(nullptr, true), E = Vec.end();
4331 I != E; ++I) {
4332 Writer.AddDeclRef(*I, Record);
4333 }
4334}
4335
4336ASTFileSignature ASTWriter::WriteASTCore(Sema &SemaRef, StringRef isysroot,
4337 const std::string &OutputFile,
4338 Module *WritingModule) {
4339 using namespace llvm;
4340
4341 bool isModule = WritingModule != nullptr;
4342
4343 // Make sure that the AST reader knows to finalize itself.
4344 if (Chain)
4345 Chain->finalizeForWriting();
4346
4347 ASTContext &Context = SemaRef.Context;
4348 Preprocessor &PP = SemaRef.PP;
4349
4350 // Set up predefined declaration IDs.
4351 auto RegisterPredefDecl = [&] (Decl *D, PredefinedDeclIDs ID) {
4352 if (D) {
4353 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 4353, __PRETTY_FUNCTION__))
;
4354 DeclIDs[D] = ID;
4355 }
4356 };
4357 RegisterPredefDecl(Context.getTranslationUnitDecl(),
4358 PREDEF_DECL_TRANSLATION_UNIT_ID);
4359 RegisterPredefDecl(Context.ObjCIdDecl, PREDEF_DECL_OBJC_ID_ID);
4360 RegisterPredefDecl(Context.ObjCSelDecl, PREDEF_DECL_OBJC_SEL_ID);
4361 RegisterPredefDecl(Context.ObjCClassDecl, PREDEF_DECL_OBJC_CLASS_ID);
4362 RegisterPredefDecl(Context.ObjCProtocolClassDecl,
4363 PREDEF_DECL_OBJC_PROTOCOL_ID);
4364 RegisterPredefDecl(Context.Int128Decl, PREDEF_DECL_INT_128_ID);
4365 RegisterPredefDecl(Context.UInt128Decl, PREDEF_DECL_UNSIGNED_INT_128_ID);
4366 RegisterPredefDecl(Context.ObjCInstanceTypeDecl,
4367 PREDEF_DECL_OBJC_INSTANCETYPE_ID);
4368 RegisterPredefDecl(Context.BuiltinVaListDecl, PREDEF_DECL_BUILTIN_VA_LIST_ID);
4369 RegisterPredefDecl(Context.VaListTagDecl, PREDEF_DECL_VA_LIST_TAG);
4370 RegisterPredefDecl(Context.BuiltinMSVaListDecl,
4371 PREDEF_DECL_BUILTIN_MS_VA_LIST_ID);
4372 RegisterPredefDecl(Context.ExternCContext, PREDEF_DECL_EXTERN_C_CONTEXT_ID);
4373 RegisterPredefDecl(Context.MakeIntegerSeqDecl,
4374 PREDEF_DECL_MAKE_INTEGER_SEQ_ID);
4375 RegisterPredefDecl(Context.CFConstantStringTypeDecl,
4376 PREDEF_DECL_CF_CONSTANT_STRING_ID);
4377 RegisterPredefDecl(Context.CFConstantStringTagDecl,
4378 PREDEF_DECL_CF_CONSTANT_STRING_TAG_ID);
4379 RegisterPredefDecl(Context.TypePackElementDecl,
4380 PREDEF_DECL_TYPE_PACK_ELEMENT_ID);
4381
4382 // Build a record containing all of the tentative definitions in this file, in
4383 // TentativeDefinitions order. Generally, this record will be empty for
4384 // headers.
4385 RecordData TentativeDefinitions;
4386 AddLazyVectorDecls(*this, SemaRef.TentativeDefinitions, TentativeDefinitions);
4387
4388 // Build a record containing all of the file scoped decls in this file.
4389 RecordData UnusedFileScopedDecls;
4390 if (!isModule)
4391 AddLazyVectorDecls(*this, SemaRef.UnusedFileScopedDecls,
4392 UnusedFileScopedDecls);
4393
4394 // Build a record containing all of the delegating constructors we still need
4395 // to resolve.
4396 RecordData DelegatingCtorDecls;
4397 if (!isModule)
4398 AddLazyVectorDecls(*this, SemaRef.DelegatingCtorDecls, DelegatingCtorDecls);
4399
4400 // Write the set of weak, undeclared identifiers. We always write the
4401 // entire table, since later PCH files in a PCH chain are only interested in
4402 // the results at the end of the chain.
4403 RecordData WeakUndeclaredIdentifiers;
4404 for (auto &WeakUndeclaredIdentifier : SemaRef.WeakUndeclaredIdentifiers) {
4405 IdentifierInfo *II = WeakUndeclaredIdentifier.first;
4406 WeakInfo &WI = WeakUndeclaredIdentifier.second;
4407 AddIdentifierRef(II, WeakUndeclaredIdentifiers);
4408 AddIdentifierRef(WI.getAlias(), WeakUndeclaredIdentifiers);
4409 AddSourceLocation(WI.getLocation(), WeakUndeclaredIdentifiers);
4410 WeakUndeclaredIdentifiers.push_back(WI.getUsed());
4411 }
4412
4413 // Build a record containing all of the ext_vector declarations.
4414 RecordData ExtVectorDecls;
4415 AddLazyVectorDecls(*this, SemaRef.ExtVectorDecls, ExtVectorDecls);
4416
4417 // Build a record containing all of the VTable uses information.
4418 RecordData VTableUses;
4419 if (!SemaRef.VTableUses.empty()) {
4420 for (unsigned I = 0, N = SemaRef.VTableUses.size(); I != N; ++I) {
4421 AddDeclRef(SemaRef.VTableUses[I].first, VTableUses);
4422 AddSourceLocation(SemaRef.VTableUses[I].second, VTableUses);
4423 VTableUses.push_back(SemaRef.VTablesUsed[SemaRef.VTableUses[I].first]);
4424 }
4425 }
4426
4427 // Build a record containing all of the UnusedLocalTypedefNameCandidates.
4428 RecordData UnusedLocalTypedefNameCandidates;
4429 for (const TypedefNameDecl *TD : SemaRef.UnusedLocalTypedefNameCandidates)
4430 AddDeclRef(TD, UnusedLocalTypedefNameCandidates);
4431
4432 // Build a record containing all of pending implicit instantiations.
4433 RecordData PendingInstantiations;
4434 for (const auto &I : SemaRef.PendingInstantiations) {
4435 AddDeclRef(I.first, PendingInstantiations);
4436 AddSourceLocation(I.second, PendingInstantiations);
4437 }
4438 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 4439, __PRETTY_FUNCTION__))
4439 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 4439, __PRETTY_FUNCTION__))
;
4440
4441 // Build a record containing some declaration references.
4442 RecordData SemaDeclRefs;
4443 if (SemaRef.StdNamespace || SemaRef.StdBadAlloc || SemaRef.StdAlignValT) {
4444 AddDeclRef(SemaRef.getStdNamespace(), SemaDeclRefs);
4445 AddDeclRef(SemaRef.getStdBadAlloc(), SemaDeclRefs);
4446 AddDeclRef(SemaRef.getStdAlignValT(), SemaDeclRefs);
4447 }
4448
4449 RecordData CUDASpecialDeclRefs;
4450 if (Context.getcudaConfigureCallDecl()) {
4451 AddDeclRef(Context.getcudaConfigureCallDecl(), CUDASpecialDeclRefs);
4452 }
4453
4454 // Build a record containing all of the known namespaces.
4455 RecordData KnownNamespaces;
4456 for (const auto &I : SemaRef.KnownNamespaces) {
4457 if (!I.second)
4458 AddDeclRef(I.first, KnownNamespaces);
4459 }
4460
4461 // Build a record of all used, undefined objects that require definitions.
4462 RecordData UndefinedButUsed;
4463
4464 SmallVector<std::pair<NamedDecl *, SourceLocation>, 16> Undefined;
4465 SemaRef.getUndefinedButUsed(Undefined);
4466 for (const auto &I : Undefined) {
4467 AddDeclRef(I.first, UndefinedButUsed);
4468 AddSourceLocation(I.second, UndefinedButUsed);
4469 }
4470
4471 // Build a record containing all delete-expressions that we would like to
4472 // analyze later in AST.
4473 RecordData DeleteExprsToAnalyze;
4474
4475 if (!isModule) {
4476 for (const auto &DeleteExprsInfo :
4477 SemaRef.getMismatchingDeleteExpressions()) {
4478 AddDeclRef(DeleteExprsInfo.first, DeleteExprsToAnalyze);
4479 DeleteExprsToAnalyze.push_back(DeleteExprsInfo.second.size());
4480 for (const auto &DeleteLoc : DeleteExprsInfo.second) {
4481 AddSourceLocation(DeleteLoc.first, DeleteExprsToAnalyze);
4482 DeleteExprsToAnalyze.push_back(DeleteLoc.second);
4483 }
4484 }
4485 }
4486
4487 // Write the control block
4488 WriteControlBlock(PP, Context, isysroot, OutputFile);
4489
4490 // Write the remaining AST contents.
4491 Stream.EnterSubblock(AST_BLOCK_ID, 5);
4492
4493 // This is so that older clang versions, before the introduction
4494 // of the control block, can read and reject the newer PCH format.
4495 {
4496 RecordData Record = {VERSION_MAJOR};
4497 Stream.EmitRecord(METADATA_OLD_FORMAT, Record);
4498 }
4499
4500 // Create a lexical update block containing all of the declarations in the
4501 // translation unit that do not come from other AST files.
4502 const TranslationUnitDecl *TU = Context.getTranslationUnitDecl();
4503 SmallVector<uint32_t, 128> NewGlobalKindDeclPairs;
4504 for (const auto *D : TU->noload_decls()) {
4505 if (!D->isFromASTFile()) {
4506 NewGlobalKindDeclPairs.push_back(D->getKind());
4507 NewGlobalKindDeclPairs.push_back(GetDeclRef(D));
4508 }
4509 }
4510
4511 auto Abv = std::make_shared<BitCodeAbbrev>();
4512 Abv->Add(llvm::BitCodeAbbrevOp(TU_UPDATE_LEXICAL));
4513 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Blob));
4514 unsigned TuUpdateLexicalAbbrev = Stream.EmitAbbrev(std::move(Abv));
4515 {
4516 RecordData::value_type Record[] = {TU_UPDATE_LEXICAL};
4517 Stream.EmitRecordWithBlob(TuUpdateLexicalAbbrev, Record,
4518 bytes(NewGlobalKindDeclPairs));
4519 }
4520
4521 // And a visible updates block for the translation unit.
4522 Abv = std::make_shared<BitCodeAbbrev>();
4523 Abv->Add(llvm::BitCodeAbbrevOp(UPDATE_VISIBLE));
4524 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::VBR, 6));
4525 Abv->Add(llvm::BitCodeAbbrevOp(llvm::BitCodeAbbrevOp::Blob));
4526 UpdateVisibleAbbrev = Stream.EmitAbbrev(std::move(Abv));
4527 WriteDeclContextVisibleUpdate(TU);
4528
4529 // If we have any extern "C" names, write out a visible update for them.
4530 if (Context.ExternCContext)
4531 WriteDeclContextVisibleUpdate(Context.ExternCContext);
4532
4533 // If the translation unit has an anonymous namespace, and we don't already
4534 // have an update block for it, write it as an update block.
4535 // FIXME: Why do we not do this if there's already an update block?
4536 if (NamespaceDecl *NS = TU->getAnonymousNamespace()) {
4537 ASTWriter::UpdateRecord &Record = DeclUpdates[TU];
4538 if (Record.empty())
4539 Record.push_back(DeclUpdate(UPD_CXX_ADDED_ANONYMOUS_NAMESPACE, NS));
4540 }
4541
4542 // Add update records for all mangling numbers and static local numbers.
4543 // These aren't really update records, but this is a convenient way of
4544 // tagging this rare extra data onto the declarations.
4545 for (const auto &Number : Context.MangleNumbers)
4546 if (!Number.first->isFromASTFile())
4547 DeclUpdates[Number.first].push_back(DeclUpdate(UPD_MANGLING_NUMBER,
4548 Number.second));
4549 for (const auto &Number : Context.StaticLocalNumbers)
4550 if (!Number.first->isFromASTFile())
4551 DeclUpdates[Number.first].push_back(DeclUpdate(UPD_STATIC_LOCAL_NUMBER,
4552 Number.second));
4553
4554 // Make sure visible decls, added to DeclContexts previously loaded from
4555 // an AST file, are registered for serialization. Likewise for template
4556 // specializations added to imported templates.
4557 for (const auto *I : DeclsToEmitEvenIfUnreferenced) {
4558 GetDeclRef(I);
4559 }
4560
4561 // Make sure all decls associated with an identifier are registered for
4562 // serialization, if we're storing decls with identifiers.
4563 if (!WritingModule || !getLangOpts().CPlusPlus) {
4564 llvm::SmallVector<const IdentifierInfo*, 256> IIs;
4565 for (const auto &ID : PP.getIdentifierTable()) {
4566 const IdentifierInfo *II = ID.second;
4567 if (!Chain || !II->isFromAST() || II->hasChangedSinceDeserialization())
4568 IIs.push_back(II);
4569 }
4570 // Sort the identifiers to visit based on their name.
4571 llvm::sort(IIs, llvm::deref<std::less<>>());
4572 for (const IdentifierInfo *II : IIs) {
4573 for (IdentifierResolver::iterator D = SemaRef.IdResolver.begin(II),
4574 DEnd = SemaRef.IdResolver.end();
4575 D != DEnd; ++D) {
4576 GetDeclRef(*D);
4577 }
4578 }
4579 }
4580
4581 // For method pool in the module, if it contains an entry for a selector,
4582 // the entry should be complete, containing everything introduced by that
4583 // module and all modules it imports. It's possible that the entry is out of
4584 // date, so we need to pull in the new content here.
4585
4586 // It's possible that updateOutOfDateSelector can update SelectorIDs. To be
4587 // safe, we copy all selectors out.
4588 llvm::SmallVector<Selector, 256> AllSelectors;
4589 for (auto &SelectorAndID : SelectorIDs)
4590 AllSelectors.push_back(SelectorAndID.first);
4591 for (auto &Selector : AllSelectors)
4592 SemaRef.updateOutOfDateSelector(Selector);
4593
4594 // Form the record of special types.
4595 RecordData SpecialTypes;
4596 AddTypeRef(Context.getRawCFConstantStringType(), SpecialTypes);
4597 AddTypeRef(Context.getFILEType(), SpecialTypes);
4598 AddTypeRef(Context.getjmp_bufType(), SpecialTypes);
4599 AddTypeRef(Context.getsigjmp_bufType(), SpecialTypes);
4600 AddTypeRef(Context.ObjCIdRedefinitionType, SpecialTypes);
4601 AddTypeRef(Context.ObjCClassRedefinitionType, SpecialTypes);
4602 AddTypeRef(Context.ObjCSelRedefinitionType, SpecialTypes);
4603 AddTypeRef(Context.getucontext_tType(), SpecialTypes);
4604
4605 if (Chain) {
4606 // Write the mapping information describing our module dependencies and how
4607 // each of those modules were mapped into our own offset/ID space, so that
4608 // the reader can build the appropriate mapping to its own offset/ID space.
4609 // The map consists solely of a blob with the following format:
4610 // *(module-kind:i8
4611 // module-name-len:i16 module-name:len*i8
4612 // source-location-offset:i32
4613 // identifier-id:i32
4614 // preprocessed-entity-id:i32
4615 // macro-definition-id:i32
4616 // submodule-id:i32
4617 // selector-id:i32
4618 // declaration-id:i32
4619 // c++-base-specifiers-id:i32
4620 // type-id:i32)
4621 //
4622 // module-kind is the ModuleKind enum value. If it is MK_PrebuiltModule or
4623 // MK_ExplicitModule, then the module-name is the module name. Otherwise,
4624 // it is the module file name.
4625 auto Abbrev = std::make_shared<BitCodeAbbrev>();
4626 Abbrev->Add(BitCodeAbbrevOp(MODULE_OFFSET_MAP));
4627 Abbrev->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Blob));
4628 unsigned ModuleOffsetMapAbbrev = Stream.EmitAbbrev(std::move(Abbrev));
4629 SmallString<2048> Buffer;
4630 {
4631 llvm::raw_svector_ostream Out(Buffer);
4632 for (ModuleFile &M : Chain->ModuleMgr) {
4633 using namespace llvm::support;
4634
4635 endian::Writer LE(Out, little);
4636 LE.write<uint8_t>(static_cast<uint8_t>(M.Kind));
4637 StringRef Name =
4638 M.Kind == MK_PrebuiltModule || M.Kind == MK_ExplicitModule
4639 ? M.ModuleName
4640 : M.FileName;
4641 LE.write<uint16_t>(Name.size());
4642 Out.write(Name.data(), Name.size());
4643
4644 // Note: if a base ID was uint max, it would not be possible to load
4645 // another module after it or have more than one entity inside it.
4646 uint32_t None = std::numeric_limits<uint32_t>::max();
4647
4648 auto writeBaseIDOrNone = [&](uint32_t BaseID, bool ShouldWrite) {
4649 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 4649, __PRETTY_FUNCTION__))
;
4650 if (ShouldWrite)
4651 LE.write<uint32_t>(BaseID);
4652 else
4653 LE.write<uint32_t>(None);
4654 };
4655
4656 // These values should be unique within a chain, since they will be read
4657 // as keys into ContinuousRangeMaps.
4658 writeBaseIDOrNone(M.SLocEntryBaseOffset, M.LocalNumSLocEntries);
4659 writeBaseIDOrNone(M.BaseIdentifierID, M.LocalNumIdentifiers);
4660 writeBaseIDOrNone(M.BaseMacroID, M.LocalNumMacros);
4661 writeBaseIDOrNone(M.BasePreprocessedEntityID,
4662 M.NumPreprocessedEntities);
4663 writeBaseIDOrNone(M.BaseSubmoduleID, M.LocalNumSubmodules);
4664 writeBaseIDOrNone(M.BaseSelectorID, M.LocalNumSelectors);
4665 writeBaseIDOrNone(M.BaseDeclID, M.LocalNumDecls);
4666 writeBaseIDOrNone(M.BaseTypeIndex, M.LocalNumTypes);
4667 }
4668 }
4669 RecordData::value_type Record[] = {MODULE_OFFSET_MAP};
4670 Stream.EmitRecordWithBlob(ModuleOffsetMapAbbrev, Record,
4671 Buffer.data(), Buffer.size());
4672 }
4673
4674 RecordData DeclUpdatesOffsetsRecord;
4675
4676 // Keep writing types, declarations, and declaration update records
4677 // until we've emitted all of them.
4678 Stream.EnterSubblock(DECLTYPES_BLOCK_ID, /*bits for abbreviations*/5);
4679 WriteTypeAbbrevs();
4680 WriteDeclAbbrevs();
4681 do {
4682 WriteDeclUpdatesBlocks(DeclUpdatesOffsetsRecord);
4683 while (!DeclTypesToEmit.empty()) {
4684 DeclOrType DOT = DeclTypesToEmit.front();
4685 DeclTypesToEmit.pop();
4686 if (DOT.isType())
4687 WriteType(DOT.getType());
4688 else
4689 WriteDecl(Context, DOT.getDecl());
4690 }
4691 } while (!DeclUpdates.empty());
4692 Stream.ExitBlock();
4693
4694 DoneWritingDeclsAndTypes = true;
4695
4696 // These things can only be done once we've written out decls and types.
4697 WriteTypeDeclOffsets();
4698 if (!DeclUpdatesOffsetsRecord.empty())
4699 Stream.EmitRecord(DECL_UPDATE_OFFSETS, DeclUpdatesOffsetsRecord);
4700 WriteFileDeclIDsMap();
4701 WriteSourceManagerBlock(Context.getSourceManager(), PP);
4702 WriteComments();
4703 WritePreprocessor(PP, isModule);
4704 WriteHeaderSearch(PP.getHeaderSearchInfo());
4705 WriteSelectors(SemaRef);
4706 WriteReferencedSelectorsPool(SemaRef);
4707 WriteLateParsedTemplates(SemaRef);
4708 WriteIdentifierTable(PP, SemaRef.IdResolver, isModule);
4709 WriteFPPragmaOptions(SemaRef.getFPOptions());
4710 WriteOpenCLExtensions(SemaRef);
4711 WriteOpenCLExtensionTypes(SemaRef);
4712 WriteCUDAPragmas(SemaRef);
4713
4714 // If we're emitting a module, write out the submodule information.
4715 if (WritingModule)
4716 WriteSubmodules(WritingModule);
4717
4718 // We need to have information about submodules to correctly deserialize
4719 // decls from OpenCLExtensionDecls block
4720 WriteOpenCLExtensionDecls(SemaRef);
4721
4722 Stream.EmitRecord(SPECIAL_TYPES, SpecialTypes);
4723
4724 // Write the record containing external, unnamed definitions.
4725 if (!EagerlyDeserializedDecls.empty())
4726 Stream.EmitRecord(EAGERLY_DESERIALIZED_DECLS, EagerlyDeserializedDecls);
4727
4728 if (!ModularCodegenDecls.empty())
4729 Stream.EmitRecord(MODULAR_CODEGEN_DECLS, ModularCodegenDecls);
4730
4731 // Write the record containing tentative definitions.
4732 if (!TentativeDefinitions.empty())
4733 Stream.EmitRecord(TENTATIVE_DEFINITIONS, TentativeDefinitions);
4734
4735 // Write the record containing unused file scoped decls.
4736 if (!UnusedFileScopedDecls.empty())
4737 Stream.EmitRecord(UNUSED_FILESCOPED_DECLS, UnusedFileScopedDecls);
4738
4739 // Write the record containing weak undeclared identifiers.
4740 if (!WeakUndeclaredIdentifiers.empty())
4741 Stream.EmitRecord(WEAK_UNDECLARED_IDENTIFIERS,
4742 WeakUndeclaredIdentifiers);
4743
4744 // Write the record containing ext_vector type names.
4745 if (!ExtVectorDecls.empty())
4746 Stream.EmitRecord(EXT_VECTOR_DECLS, ExtVectorDecls);
4747
4748 // Write the record containing VTable uses information.
4749 if (!VTableUses.empty())
4750 Stream.EmitRecord(VTABLE_USES, VTableUses);
4751
4752 // Write the record containing potentially unused local typedefs.
4753 if (!UnusedLocalTypedefNameCandidates.empty())
4754 Stream.EmitRecord(UNUSED_LOCAL_TYPEDEF_NAME_CANDIDATES,
4755 UnusedLocalTypedefNameCandidates);
4756
4757 // Write the record containing pending implicit instantiations.
4758 if (!PendingInstantiations.empty())
4759 Stream.EmitRecord(PENDING_IMPLICIT_INSTANTIATIONS, PendingInstantiations);
4760
4761 // Write the record containing declaration references of Sema.
4762 if (!SemaDeclRefs.empty())
4763 Stream.EmitRecord(SEMA_DECL_REFS, SemaDeclRefs);
4764
4765 // Write the record containing CUDA-specific declaration references.
4766 if (!CUDASpecialDeclRefs.empty())
4767 Stream.EmitRecord(CUDA_SPECIAL_DECL_REFS, CUDASpecialDeclRefs);
4768
4769 // Write the delegating constructors.
4770 if (!DelegatingCtorDecls.empty())
4771 Stream.EmitRecord(DELEGATING_CTORS, DelegatingCtorDecls);
4772
4773 // Write the known namespaces.
4774 if (!KnownNamespaces.empty())
4775 Stream.EmitRecord(KNOWN_NAMESPACES, KnownNamespaces);
4776
4777 // Write the undefined internal functions and variables, and inline functions.
4778 if (!UndefinedButUsed.empty())
4779 Stream.EmitRecord(UNDEFINED_BUT_USED, UndefinedButUsed);
4780
4781 if (!DeleteExprsToAnalyze.empty())
4782 Stream.EmitRecord(DELETE_EXPRS_TO_ANALYZE, DeleteExprsToAnalyze);
4783
4784 // Write the visible updates to DeclContexts.
4785 for (auto *DC : UpdatedDeclContexts)
4786 WriteDeclContextVisibleUpdate(DC);
4787
4788 if (!WritingModule) {
4789 // Write the submodules that were imported, if any.
4790 struct ModuleInfo {
4791 uint64_t ID;
4792 Module *M;
4793 ModuleInfo(uint64_t ID, Module *M) : ID(ID), M(M) {}
4794 };
4795 llvm::SmallVector<ModuleInfo, 64> Imports;
4796 for (const auto *I : Context.local_imports()) {
4797 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 4797, __PRETTY_FUNCTION__))
;
4798 Imports.push_back(ModuleInfo(SubmoduleIDs[I->getImportedModule()],
4799 I->getImportedModule()));
4800 }
4801
4802 if (!Imports.empty()) {
4803 auto Cmp = [](const ModuleInfo &A, const ModuleInfo &B) {
4804 return A.ID < B.ID;
4805 };
4806 auto Eq = [](const ModuleInfo &A, const ModuleInfo &B) {
4807 return A.ID == B.ID;
4808 };
4809
4810 // Sort and deduplicate module IDs.
4811 llvm::sort(Imports, Cmp);
4812 Imports.erase(std::unique(Imports.begin(), Imports.end(), Eq),
4813 Imports.end());
4814
4815 RecordData ImportedModules;
4816 for (const auto &Import : Imports) {
4817 ImportedModules.push_back(Import.ID);
4818 // FIXME: If the module has macros imported then later has declarations
4819 // imported, this location won't be the right one as a location for the
4820 // declaration imports.
4821 AddSourceLocation(PP.getModuleImportLoc(Import.M), ImportedModules);
4822 }
4823
4824 Stream.EmitRecord(IMPORTED_MODULES, ImportedModules);
4825 }
4826 }
4827
4828 WriteObjCCategories();
4829 if(!WritingModule) {
4830 WriteOptimizePragmaOptions(SemaRef);
4831 WriteMSStructPragmaOptions(SemaRef);
4832 WriteMSPointersToMembersPragmaOptions(SemaRef);
4833 }
4834 WritePackPragmaOptions(SemaRef);
4835
4836 // Some simple statistics
4837 RecordData::value_type Record[] = {
4838 NumStatements, NumMacros, NumLexicalDeclContexts, NumVisibleDeclContexts};
4839 Stream.EmitRecord(STATISTICS, Record);
4840 Stream.ExitBlock();
4841
4842 // Write the module file extension blocks.
4843 for (const auto &ExtWriter : ModuleFileExtensionWriters)
4844 WriteModuleFileExtension(SemaRef, *ExtWriter);
4845
4846 return writeUnhashedControlBlock(PP, Context);
4847}
4848
4849void ASTWriter::WriteDeclUpdatesBlocks(RecordDataImpl &OffsetsRecord) {
4850 if (DeclUpdates.empty())
4851 return;
4852
4853 DeclUpdateMap LocalUpdates;
4854 LocalUpdates.swap(DeclUpdates);
4855
4856 for (auto &DeclUpdate : LocalUpdates) {
4857 const Decl *D = DeclUpdate.first;
4858
4859 bool HasUpdatedBody = false;
4860 RecordData RecordData;
4861 ASTRecordWriter Record(*this, RecordData);
4862 for (auto &Update : DeclUpdate.second) {
4863 DeclUpdateKind Kind = (DeclUpdateKind)Update.getKind();
4864
4865 // An updated body is emitted last, so that the reader doesn't need
4866 // to skip over the lazy body to reach statements for other records.
4867 if (Kind == UPD_CXX_ADDED_FUNCTION_DEFINITION)
4868 HasUpdatedBody = true;
4869 else
4870 Record.push_back(Kind);
4871
4872 switch (Kind) {
4873 case UPD_CXX_ADDED_IMPLICIT_MEMBER:
4874 case UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION:
4875 case UPD_CXX_ADDED_ANONYMOUS_NAMESPACE:
4876 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 4876, __PRETTY_FUNCTION__))
;
4877 Record.push_back(GetDeclRef(Update.getDecl()));
4878 break;
4879
4880 case UPD_CXX_ADDED_FUNCTION_DEFINITION:
4881 break;
4882
4883 case UPD_CXX_POINT_OF_INSTANTIATION:
4884 // FIXME: Do we need to also save the template specialization kind here?
4885 Record.AddSourceLocation(Update.getLoc());
4886 break;
4887
4888 case UPD_CXX_ADDED_VAR_DEFINITION: {
4889 const VarDecl *VD = cast<VarDecl>(D);
4890 Record.push_back(VD->isInline());
4891 Record.push_back(VD->isInlineSpecified());
4892 if (VD->getInit()) {
4893 Record.push_back(!VD->isInitKnownICE() ? 1
4894 : (VD->isInitICE() ? 3 : 2));
4895 Record.AddStmt(const_cast<Expr*>(VD->getInit()));
4896 } else {
4897 Record.push_back(0);
4898 }
4899 break;
4900 }
4901
4902 case UPD_CXX_INSTANTIATED_DEFAULT_ARGUMENT:
4903 Record.AddStmt(const_cast<Expr *>(
4904 cast<ParmVarDecl>(Update.getDecl())->getDefaultArg()));
4905 break;
4906
4907 case UPD_CXX_INSTANTIATED_DEFAULT_MEMBER_INITIALIZER:
4908 Record.AddStmt(
4909 cast<FieldDecl>(Update.getDecl())->getInClassInitializer());
4910 break;
4911
4912 case UPD_CXX_INSTANTIATED_CLASS_DEFINITION: {
4913 auto *RD = cast<CXXRecordDecl>(D);
4914 UpdatedDeclContexts.insert(RD->getPrimaryContext());
4915 Record.push_back(RD->isParamDestroyedInCallee());
4916 Record.push_back(RD->getArgPassingRestrictions());
4917 Record.AddCXXDefinitionData(RD);
4918 Record.AddOffset(WriteDeclContextLexicalBlock(
4919 *Context, const_cast<CXXRecordDecl *>(RD)));
4920
4921 // This state is sometimes updated by template instantiation, when we
4922 // switch from the specialization referring to the template declaration
4923 // to it referring to the template definition.
4924 if (auto *MSInfo = RD->getMemberSpecializationInfo()) {
4925 Record.push_back(MSInfo->getTemplateSpecializationKind());
4926 Record.AddSourceLocation(MSInfo->getPointOfInstantiation());
4927 } else {
4928 auto *Spec = cast<ClassTemplateSpecializationDecl>(RD);
4929 Record.push_back(Spec->getTemplateSpecializationKind());
4930 Record.AddSourceLocation(Spec->getPointOfInstantiation());
4931
4932 // The instantiation might have been resolved to a partial
4933 // specialization. If so, record which one.
4934 auto From = Spec->getInstantiatedFrom();
4935 if (auto PartialSpec =
4936 From.dyn_cast<ClassTemplatePartialSpecializationDecl*>()) {
4937 Record.push_back(true);
4938 Record.AddDeclRef(PartialSpec);
4939 Record.AddTemplateArgumentList(
4940 &Spec->getTemplateInstantiationArgs());
4941 } else {
4942 Record.push_back(false);
4943 }
4944 }
4945 Record.push_back(RD->getTagKind());
4946 Record.AddSourceLocation(RD->getLocation());
4947 Record.AddSourceLocation(RD->getBeginLoc());
4948 Record.AddSourceRange(RD->getBraceRange());
4949
4950 // Instantiation may change attributes; write them all out afresh.
4951 Record.push_back(D->hasAttrs());
4952 if (D->hasAttrs())
4953 Record.AddAttributes(D->getAttrs());
4954
4955 // FIXME: Ensure we don't get here for explicit instantiations.
4956 break;
4957 }
4958
4959 case UPD_CXX_RESOLVED_DTOR_DELETE:
4960 Record.AddDeclRef(Update.getDecl());
4961 Record.AddStmt(cast<CXXDestructorDecl>(D)->getOperatorDeleteThisArg());
4962 break;
4963
4964 case UPD_CXX_RESOLVED_EXCEPTION_SPEC: {
4965 auto prototype =
4966 cast<FunctionDecl>(D)->getType()->castAs<FunctionProtoType>();
4967 Record.writeExceptionSpecInfo(prototype->getExceptionSpecInfo());
4968 break;
4969 }
4970
4971 case UPD_CXX_DEDUCED_RETURN_TYPE:
4972 Record.push_back(GetOrCreateTypeID(Update.getType()));
4973 break;
4974
4975 case UPD_DECL_MARKED_USED:
4976 break;
4977
4978 case UPD_MANGLING_NUMBER:
4979 case UPD_STATIC_LOCAL_NUMBER:
4980 Record.push_back(Update.getNumber());
4981 break;
4982
4983 case UPD_DECL_MARKED_OPENMP_THREADPRIVATE:
4984 Record.AddSourceRange(
4985 D->getAttr<OMPThreadPrivateDeclAttr>()->getRange());
4986 break;
4987
4988 case UPD_DECL_MARKED_OPENMP_ALLOCATE: {
4989 auto *A = D->getAttr<OMPAllocateDeclAttr>();
4990 Record.push_back(A->getAllocatorType());
4991 Record.AddStmt(A->getAllocator());
4992 Record.AddSourceRange(A->getRange());
4993 break;
4994 }
4995
4996 case UPD_DECL_MARKED_OPENMP_DECLARETARGET:
4997 Record.push_back(D->getAttr<OMPDeclareTargetDeclAttr>()->getMapType());
4998 Record.AddSourceRange(
4999 D->getAttr<OMPDeclareTargetDeclAttr>()->getRange());
5000 break;
5001
5002 case UPD_DECL_EXPORTED:
5003 Record.push_back(getSubmoduleID(Update.getModule()));
5004 break;
5005
5006 case UPD_ADDED_ATTR_TO_RECORD:
5007 Record.AddAttributes(llvm::makeArrayRef(Update.getAttr()));
5008 break;
5009 }
5010 }
5011
5012 if (HasUpdatedBody) {
5013 const auto *Def = cast<FunctionDecl>(D);
5014 Record.push_back(UPD_CXX_ADDED_FUNCTION_DEFINITION);
5015 Record.push_back(Def->isInlined());
5016 Record.AddSourceLocation(Def->getInnerLocStart());
5017 Record.AddFunctionDefinition(Def);
5018 }
5019
5020 OffsetsRecord.push_back(GetDeclRef(D));
5021 OffsetsRecord.push_back(Record.Emit(DECL_UPDATES));
5022 }
5023}
5024
5025void ASTWriter::AddSourceLocation(SourceLocation Loc, RecordDataImpl &Record) {
5026 uint32_t Raw = Loc.getRawEncoding();
5027 Record.push_back((Raw << 1) | (Raw >> 31));
5028}
5029
5030void ASTWriter::AddSourceRange(SourceRange Range, RecordDataImpl &Record) {
5031 AddSourceLocation(Range.getBegin(), Record);
5032 AddSourceLocation(Range.getEnd(), Record);
5033}
5034
5035void ASTRecordWriter::AddAPFloat(const llvm::APFloat &Value) {
5036 AddAPInt(Value.bitcastToAPInt());
5037}
5038
5039static void WriteFixedPointSemantics(ASTRecordWriter &Record,
5040 FixedPointSemantics FPSema) {
5041 Record.push_back(FPSema.getWidth());
5042 Record.push_back(FPSema.getScale());
5043 Record.push_back(FPSema.isSigned() | FPSema.isSaturated() << 1 |
5044 FPSema.hasUnsignedPadding() << 2);
5045}
5046
5047void ASTRecordWriter::AddAPValue(const APValue &Value) {
5048 APValue::ValueKind Kind = Value.getKind();
5049 push_back(static_cast<uint64_t>(Kind));
5050 switch (Kind) {
5051 case APValue::None:
5052 case APValue::Indeterminate:
5053 return;
5054 case APValue::Int:
5055 AddAPSInt(Value.getInt());
5056 return;
5057 case APValue::Float:
5058 push_back(static_cast<uint64_t>(
5059 llvm::APFloatBase::SemanticsToEnum(Value.getFloat().getSemantics())));
5060 AddAPFloat(Value.getFloat());
5061 return;
5062 case APValue::FixedPoint: {
5063 WriteFixedPointSemantics(*this, Value.getFixedPoint().getSemantics());
5064 AddAPSInt(Value.getFixedPoint().getValue());
5065 return;
5066 }
5067 case APValue::ComplexInt: {
5068 AddAPSInt(Value.getComplexIntReal());
5069 AddAPSInt(Value.getComplexIntImag());
5070 return;
5071 }
5072 case APValue::ComplexFloat: {
5073 push_back(static_cast<uint64_t>(llvm::APFloatBase::SemanticsToEnum(
5074 Value.getComplexFloatReal().getSemantics())));
5075 AddAPFloat(Value.getComplexFloatReal());
5076 push_back(static_cast<uint64_t>(llvm::APFloatBase::SemanticsToEnum(
5077 Value.getComplexFloatImag().getSemantics())));
5078 AddAPFloat(Value.getComplexFloatImag());
5079 return;
5080 }
5081 case APValue::LValue:
5082 case APValue::Vector:
5083 case APValue::Array:
5084 case APValue::Struct:
5085 case APValue::Union:
5086 case APValue::MemberPointer:
5087 case APValue::AddrLabelDiff:
5088 // TODO : Handle all these APValue::ValueKind.
5089 return;
5090 }
5091 llvm_unreachable("Invalid APValue::ValueKind")::llvm::llvm_unreachable_internal("Invalid APValue::ValueKind"
, "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5091)
;
5092}
5093
5094void ASTWriter::AddIdentifierRef(const IdentifierInfo *II, RecordDataImpl &Record) {
5095 Record.push_back(getIdentifierRef(II));
5096}
5097
5098IdentID ASTWriter::getIdentifierRef(const IdentifierInfo *II) {
5099 if (!II)
5100 return 0;
5101
5102 IdentID &ID = IdentifierIDs[II];
5103 if (ID == 0)
5104 ID = NextIdentID++;
5105 return ID;
5106}
5107
5108MacroID ASTWriter::getMacroRef(MacroInfo *MI, const IdentifierInfo *Name) {
5109 // Don't emit builtin macros like __LINE__ to the AST file unless they
5110 // have been redefined by the header (in which case they are not
5111 // isBuiltinMacro).
5112 if (!MI || MI->isBuiltinMacro())
5113 return 0;
5114
5115 MacroID &ID = MacroIDs[MI];
5116 if (ID == 0) {
5117 ID = NextMacroID++;
5118 MacroInfoToEmitData Info = { Name, MI, ID };
5119 MacroInfosToEmit.push_back(Info);
5120 }
5121 return ID;
5122}
5123
5124MacroID ASTWriter::getMacroID(MacroInfo *MI) {
5125 if (!MI || MI->isBuiltinMacro())
5126 return 0;
5127
5128 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5128, __PRETTY_FUNCTION__))
;
5129 return MacroIDs[MI];
5130}
5131
5132uint64_t ASTWriter::getMacroDirectivesOffset(const IdentifierInfo *Name) {
5133 return IdentMacroDirectivesOffsetMap.lookup(Name);
5134}
5135
5136void ASTRecordWriter::AddSelectorRef(const Selector SelRef) {
5137 Record->push_back(Writer->getSelectorRef(SelRef));
5138}
5139
5140SelectorID ASTWriter::getSelectorRef(Selector Sel) {
5141 if (Sel.getAsOpaquePtr() == nullptr) {
5142 return 0;
5143 }
5144
5145 SelectorID SID = SelectorIDs[Sel];
5146 if (SID == 0 && Chain) {
5147 // This might trigger a ReadSelector callback, which will set the ID for
5148 // this selector.
5149 Chain->LoadSelector(Sel);
5150 SID = SelectorIDs[Sel];
5151 }
5152 if (SID == 0) {
5153 SID = NextSelectorID++;
5154 SelectorIDs[Sel] = SID;
5155 }
5156 return SID;
5157}
5158
5159void ASTRecordWriter::AddCXXTemporary(const CXXTemporary *Temp) {
5160 AddDeclRef(Temp->getDestructor());
5161}
5162
5163void ASTRecordWriter::AddTemplateArgumentLocInfo(
5164 TemplateArgument::ArgKind Kind, const TemplateArgumentLocInfo &Arg) {
5165 switch (Kind) {
5166 case TemplateArgument::Expression:
5167 AddStmt(Arg.getAsExpr());
5168 break;
5169 case TemplateArgument::Type:
5170 AddTypeSourceInfo(Arg.getAsTypeSourceInfo());
5171 break;
5172 case TemplateArgument::Template:
5173 AddNestedNameSpecifierLoc(Arg.getTemplateQualifierLoc());
5174 AddSourceLocation(Arg.getTemplateNameLoc());
5175 break;
5176 case TemplateArgument::TemplateExpansion:
5177 AddNestedNameSpecifierLoc(Arg.getTemplateQualifierLoc());
5178 AddSourceLocation(Arg.getTemplateNameLoc());
5179 AddSourceLocation(Arg.getTemplateEllipsisLoc());
5180 break;
5181 case TemplateArgument::Null:
5182 case TemplateArgument::Integral:
5183 case TemplateArgument::Declaration:
5184 case TemplateArgument::NullPtr:
5185 case TemplateArgument::Pack:
5186 // FIXME: Is this right?
5187 break;
5188 }
5189}
5190
5191void ASTRecordWriter::AddTemplateArgumentLoc(const TemplateArgumentLoc &Arg) {
5192 AddTemplateArgument(Arg.getArgument());
5193
5194 if (Arg.getArgument().getKind() == TemplateArgument::Expression) {
5195 bool InfoHasSameExpr
5196 = Arg.getArgument().getAsExpr() == Arg.getLocInfo().getAsExpr();
5197 Record->push_back(InfoHasSameExpr);
5198 if (InfoHasSameExpr)
5199 return; // Avoid storing the same expr twice.
5200 }
5201 AddTemplateArgumentLocInfo(Arg.getArgument().getKind(), Arg.getLocInfo());
5202}
5203
5204void ASTRecordWriter::AddTypeSourceInfo(TypeSourceInfo *TInfo) {
5205 if (!TInfo) {
5206 AddTypeRef(QualType());
5207 return;
5208 }
5209
5210 AddTypeRef(TInfo->getType());
5211 AddTypeLoc(TInfo->getTypeLoc());
5212}
5213
5214void ASTRecordWriter::AddTypeLoc(TypeLoc TL) {
5215 TypeLocWriter TLW(*this);
5216 for (; !TL.isNull(); TL = TL.getNextTypeLoc())
5217 TLW.Visit(TL);
5218}
5219
5220void ASTWriter::AddTypeRef(QualType T, RecordDataImpl &Record) {
5221 Record.push_back(GetOrCreateTypeID(T));
5222}
5223
5224TypeID ASTWriter::GetOrCreateTypeID(QualType T) {
5225 assert(Context)((Context) ? static_cast<void> (0) : __assert_fail ("Context"
, "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5225, __PRETTY_FUNCTION__))
;
5226 return MakeTypeID(*Context, T, [&](QualType T) -> TypeIdx {
5227 if (T.isNull())
5228 return TypeIdx();
5229 assert(!T.getLocalFastQualifiers())((!T.getLocalFastQualifiers()) ? static_cast<void> (0) :
__assert_fail ("!T.getLocalFastQualifiers()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5229, __PRETTY_FUNCTION__))
;
5230
5231 TypeIdx &Idx = TypeIdxs[T];
5232 if (Idx.getIndex() == 0) {
5233 if (DoneWritingDeclsAndTypes) {
5234 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5234, __PRETTY_FUNCTION__))
;
5235 return TypeIdx();
5236 }
5237
5238 // We haven't seen this type before. Assign it a new ID and put it
5239 // into the queue of types to emit.
5240 Idx = TypeIdx(NextTypeID++);
5241 DeclTypesToEmit.push(T);
5242 }
5243 return Idx;
5244 });
5245}
5246
5247TypeID ASTWriter::getTypeID(QualType T) const {
5248 assert(Context)((Context) ? static_cast<void> (0) : __assert_fail ("Context"
, "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5248, __PRETTY_FUNCTION__))
;
5249 return MakeTypeID(*Context, T, [&](QualType T) -> TypeIdx {
5250 if (T.isNull())
5251 return TypeIdx();
5252 assert(!T.getLocalFastQualifiers())((!T.getLocalFastQualifiers()) ? static_cast<void> (0) :
__assert_fail ("!T.getLocalFastQualifiers()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5252, __PRETTY_FUNCTION__))
;
5253
5254 TypeIdxMap::const_iterator I = TypeIdxs.find(T);
5255 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5255, __PRETTY_FUNCTION__))
;
5256 return I->second;
5257 });
5258}
5259
5260void ASTWriter::AddDeclRef(const Decl *D, RecordDataImpl &Record) {
5261 Record.push_back(GetDeclRef(D));
5262}
5263
5264DeclID ASTWriter::GetDeclRef(const Decl *D) {
5265 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5265, __PRETTY_FUNCTION__))
;
5266
5267 if (!D) {
5268 return 0;
5269 }
5270
5271 // If D comes from an AST file, its declaration ID is already known and
5272 // fixed.
5273 if (D->isFromASTFile())
5274 return D->getGlobalID();
5275
5276 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5276, __PRETTY_FUNCTION__))
;
5277 DeclID &ID = DeclIDs[D];
5278 if (ID == 0) {
5279 if (DoneWritingDeclsAndTypes) {
5280 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5280, __PRETTY_FUNCTION__))
;
5281 return 0;
5282 }
5283
5284 // We haven't seen this declaration before. Give it a new ID and
5285 // enqueue it in the list of declarations to emit.
5286 ID = NextDeclID++;
5287 DeclTypesToEmit.push(const_cast<Decl *>(D));
5288 }
5289
5290 return ID;
5291}
5292
5293DeclID ASTWriter::getDeclID(const Decl *D) {
5294 if (!D)
5295 return 0;
5296
5297 // If D comes from an AST file, its declaration ID is already known and
5298 // fixed.
5299 if (D->isFromASTFile())
5300 return D->getGlobalID();
5301
5302 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5302, __PRETTY_FUNCTION__))
;
5303 return DeclIDs[D];
5304}
5305
5306void ASTWriter::associateDeclWithFile(const Decl *D, DeclID ID) {
5307 assert(ID)((ID) ? static_cast<void> (0) : __assert_fail ("ID", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5307, __PRETTY_FUNCTION__))
;
5308 assert(D)((D) ? static_cast<void> (0) : __assert_fail ("D", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5308, __PRETTY_FUNCTION__))
;
5309
5310 SourceLocation Loc = D->getLocation();
5311 if (Loc.isInvalid())
5312 return;
5313
5314 // We only keep track of the file-level declarations of each file.
5315 if (!D->getLexicalDeclContext()->isFileContext())
5316 return;
5317 // FIXME: ParmVarDecls that are part of a function type of a parameter of
5318 // a function/objc method, should not have TU as lexical context.
5319 // TemplateTemplateParmDecls that are part of an alias template, should not
5320 // have TU as lexical context.
5321 if (isa<ParmVarDecl>(D) || isa<TemplateTemplateParmDecl>(D))
5322 return;
5323
5324 SourceManager &SM = Context->getSourceManager();
5325 SourceLocation FileLoc = SM.getFileLoc(Loc);
5326 assert(SM.isLocalSourceLocation(FileLoc))((SM.isLocalSourceLocation(FileLoc)) ? static_cast<void>
(0) : __assert_fail ("SM.isLocalSourceLocation(FileLoc)", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5326, __PRETTY_FUNCTION__))
;
5327 FileID FID;
5328 unsigned Offset;
5329 std::tie(FID, Offset) = SM.getDecomposedLoc(FileLoc);
5330 if (FID.isInvalid())
5331 return;
5332 assert(SM.getSLocEntry(FID).isFile())((SM.getSLocEntry(FID).isFile()) ? static_cast<void> (0
) : __assert_fail ("SM.getSLocEntry(FID).isFile()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5332, __PRETTY_FUNCTION__))
;
5333
5334 DeclIDInFileInfo *&Info = FileDeclIDs[FID];
5335 if (!Info)
5336 Info = new DeclIDInFileInfo();
5337
5338 std::pair<unsigned, serialization::DeclID> LocDecl(Offset, ID);
5339 LocDeclIDsTy &Decls = Info->DeclIDs;
5340
5341 if (Decls.empty() || Decls.back().first <= Offset) {
5342 Decls.push_back(LocDecl);
5343 return;
5344 }
5345
5346 LocDeclIDsTy::iterator I =
5347 llvm::upper_bound(Decls, LocDecl, llvm::less_first());
5348
5349 Decls.insert(I, LocDecl);
5350}
5351
5352unsigned ASTWriter::getAnonymousDeclarationNumber(const NamedDecl *D) {
5353 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5354, __PRETTY_FUNCTION__))
5354 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5354, __PRETTY_FUNCTION__))
;
5355
5356 // Number the anonymous declarations within this context, if we've not
5357 // already done so.
5358 auto It = AnonymousDeclarationNumbers.find(D);
5359 if (It == AnonymousDeclarationNumbers.end()) {
5360 auto *DC = D->getLexicalDeclContext();
5361 numberAnonymousDeclsWithin(DC, [&](const NamedDecl *ND, unsigned Number) {
5362 AnonymousDeclarationNumbers[ND] = Number;
5363 });
5364
5365 It = AnonymousDeclarationNumbers.find(D);
5366 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5367, __PRETTY_FUNCTION__))
5367 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5367, __PRETTY_FUNCTION__))
;
5368 }
5369
5370 return It->second;
5371}
5372
5373void ASTRecordWriter::AddDeclarationNameLoc(const DeclarationNameLoc &DNLoc,
5374 DeclarationName Name) {
5375 switch (Name.getNameKind()) {
5376 case DeclarationName::CXXConstructorName:
5377 case DeclarationName::CXXDestructorName:
5378 case DeclarationName::CXXConversionFunctionName:
5379 AddTypeSourceInfo(DNLoc.NamedType.TInfo);
5380 break;
5381
5382 case DeclarationName::CXXOperatorName:
5383 AddSourceLocation(SourceLocation::getFromRawEncoding(
5384 DNLoc.CXXOperatorName.BeginOpNameLoc));
5385 AddSourceLocation(
5386 SourceLocation::getFromRawEncoding(DNLoc.CXXOperatorName.EndOpNameLoc));
5387 break;
5388
5389 case DeclarationName::CXXLiteralOperatorName:
5390 AddSourceLocation(SourceLocation::getFromRawEncoding(
5391 DNLoc.CXXLiteralOperatorName.OpNameLoc));
5392 break;
5393
5394 case DeclarationName::Identifier:
5395 case DeclarationName::ObjCZeroArgSelector:
5396 case DeclarationName::ObjCOneArgSelector:
5397 case DeclarationName::ObjCMultiArgSelector:
5398 case DeclarationName::CXXUsingDirective:
5399 case DeclarationName::CXXDeductionGuideName:
5400 break;
5401 }
5402}
5403
5404void ASTRecordWriter::AddDeclarationNameInfo(
5405 const DeclarationNameInfo &NameInfo) {
5406 AddDeclarationName(NameInfo.getName());
5407 AddSourceLocation(NameInfo.getLoc());
5408 AddDeclarationNameLoc(NameInfo.getInfo(), NameInfo.getName());
5409}
5410
5411void ASTRecordWriter::AddQualifierInfo(const QualifierInfo &Info) {
5412 AddNestedNameSpecifierLoc(Info.QualifierLoc);
5413 Record->push_back(Info.NumTemplParamLists);
5414 for (unsigned i = 0, e = Info.NumTemplParamLists; i != e; ++i)
5415 AddTemplateParameterList(Info.TemplParamLists[i]);
5416}
5417
5418void ASTRecordWriter::AddNestedNameSpecifierLoc(NestedNameSpecifierLoc NNS) {
5419 // Nested name specifiers usually aren't too long. I think that 8 would
5420 // typically accommodate the vast majority.
5421 SmallVector<NestedNameSpecifierLoc , 8> NestedNames;
5422
5423 // Push each of the nested-name-specifiers's onto a stack for
5424 // serialization in reverse order.
5425 while (NNS) {
5426 NestedNames.push_back(NNS);
5427 NNS = NNS.getPrefix();
5428 }
5429
5430 Record->push_back(NestedNames.size());
5431 while(!NestedNames.empty()) {
5432 NNS = NestedNames.pop_back_val();
5433 NestedNameSpecifier::SpecifierKind Kind
5434 = NNS.getNestedNameSpecifier()->getKind();
5435 Record->push_back(Kind);
5436 switch (Kind) {
5437 case NestedNameSpecifier::Identifier:
5438 AddIdentifierRef(NNS.getNestedNameSpecifier()->getAsIdentifier());
5439 AddSourceRange(NNS.getLocalSourceRange());
5440 break;
5441
5442 case NestedNameSpecifier::Namespace:
5443 AddDeclRef(NNS.getNestedNameSpecifier()->getAsNamespace());
5444 AddSourceRange(NNS.getLocalSourceRange());
5445 break;
5446
5447 case NestedNameSpecifier::NamespaceAlias:
5448 AddDeclRef(NNS.getNestedNameSpecifier()->getAsNamespaceAlias());
5449 AddSourceRange(NNS.getLocalSourceRange());
5450 break;
5451
5452 case NestedNameSpecifier::TypeSpec:
5453 case NestedNameSpecifier::TypeSpecWithTemplate:
5454 Record->push_back(Kind == NestedNameSpecifier::TypeSpecWithTemplate);
5455 AddTypeRef(NNS.getTypeLoc().getType());
5456 AddTypeLoc(NNS.getTypeLoc());
5457 AddSourceLocation(NNS.getLocalSourceRange().getEnd());
5458 break;
5459
5460 case NestedNameSpecifier::Global:
5461 AddSourceLocation(NNS.getLocalSourceRange().getEnd());
5462 break;
5463
5464 case NestedNameSpecifier::Super:
5465 AddDeclRef(NNS.getNestedNameSpecifier()->getAsRecordDecl());
5466 AddSourceRange(NNS.getLocalSourceRange());
5467 break;
5468 }
5469 }
5470}
5471
5472void ASTRecordWriter::AddTemplateParameterList(
5473 const TemplateParameterList *TemplateParams) {
5474 assert(TemplateParams && "No TemplateParams!")((TemplateParams && "No TemplateParams!") ? static_cast
<void> (0) : __assert_fail ("TemplateParams && \"No TemplateParams!\""
, "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5474, __PRETTY_FUNCTION__))
;
5475 AddSourceLocation(TemplateParams->getTemplateLoc());
5476 AddSourceLocation(TemplateParams->getLAngleLoc());
5477 AddSourceLocation(TemplateParams->getRAngleLoc());
5478
5479 Record->push_back(TemplateParams->size());
5480 for (const auto &P : *TemplateParams)
5481 AddDeclRef(P);
5482 if (const Expr *RequiresClause = TemplateParams->getRequiresClause()) {
5483 Record->push_back(true);
5484 AddStmt(const_cast<Expr*>(RequiresClause));
5485 } else {
5486 Record->push_back(false);
5487 }
5488}
5489
5490/// Emit a template argument list.
5491void ASTRecordWriter::AddTemplateArgumentList(
5492 const TemplateArgumentList *TemplateArgs) {
5493 assert(TemplateArgs && "No TemplateArgs!")((TemplateArgs && "No TemplateArgs!") ? static_cast<
void> (0) : __assert_fail ("TemplateArgs && \"No TemplateArgs!\""
, "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5493, __PRETTY_FUNCTION__))
;
5494 Record->push_back(TemplateArgs->size());
5495 for (int i = 0, e = TemplateArgs->size(); i != e; ++i)
5496 AddTemplateArgument(TemplateArgs->get(i));
5497}
5498
5499void ASTRecordWriter::AddASTTemplateArgumentListInfo(
5500 const ASTTemplateArgumentListInfo *ASTTemplArgList) {
5501 assert(ASTTemplArgList && "No ASTTemplArgList!")((ASTTemplArgList && "No ASTTemplArgList!") ? static_cast
<void> (0) : __assert_fail ("ASTTemplArgList && \"No ASTTemplArgList!\""
, "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5501, __PRETTY_FUNCTION__))
;
5502 AddSourceLocation(ASTTemplArgList->LAngleLoc);
5503 AddSourceLocation(ASTTemplArgList->RAngleLoc);
5504 Record->push_back(ASTTemplArgList->NumTemplateArgs);
5505 const TemplateArgumentLoc *TemplArgs = ASTTemplArgList->getTemplateArgs();
5506 for (int i = 0, e = ASTTemplArgList->NumTemplateArgs; i != e; ++i)
5507 AddTemplateArgumentLoc(TemplArgs[i]);
5508}
5509
5510void ASTRecordWriter::AddUnresolvedSet(const ASTUnresolvedSet &Set) {
5511 Record->push_back(Set.size());
5512 for (ASTUnresolvedSet::const_iterator
5513 I = Set.begin(), E = Set.end(); I != E; ++I) {
5514 AddDeclRef(I.getDecl());
5515 Record->push_back(I.getAccess());
5516 }
5517}
5518
5519// FIXME: Move this out of the main ASTRecordWriter interface.
5520void ASTRecordWriter::AddCXXBaseSpecifier(const CXXBaseSpecifier &Base) {
5521 Record->push_back(Base.isVirtual());
5522 Record->push_back(Base.isBaseOfClass());
5523 Record->push_back(Base.getAccessSpecifierAsWritten());
5524 Record->push_back(Base.getInheritConstructors());
5525 AddTypeSourceInfo(Base.getTypeSourceInfo());
5526 AddSourceRange(Base.getSourceRange());
5527 AddSourceLocation(Base.isPackExpansion()? Base.getEllipsisLoc()
5528 : SourceLocation());
5529}
5530
5531static uint64_t EmitCXXBaseSpecifiers(ASTWriter &W,
5532 ArrayRef<CXXBaseSpecifier> Bases) {
5533 ASTWriter::RecordData Record;
5534 ASTRecordWriter Writer(W, Record);
5535 Writer.push_back(Bases.size());
5536
5537 for (auto &Base : Bases)
5538 Writer.AddCXXBaseSpecifier(Base);
5539
5540 return Writer.Emit(serialization::DECL_CXX_BASE_SPECIFIERS);
5541}
5542
5543// FIXME: Move this out of the main ASTRecordWriter interface.
5544void ASTRecordWriter::AddCXXBaseSpecifiers(ArrayRef<CXXBaseSpecifier> Bases) {
5545 AddOffset(EmitCXXBaseSpecifiers(*Writer, Bases));
5546}
5547
5548static uint64_t
5549EmitCXXCtorInitializers(ASTWriter &W,
5550 ArrayRef<CXXCtorInitializer *> CtorInits) {
5551 ASTWriter::RecordData Record;
5552 ASTRecordWriter Writer(W, Record);
5553 Writer.push_back(CtorInits.size());
5554
5555 for (auto *Init : CtorInits) {
5556 if (Init->isBaseInitializer()) {
5557 Writer.push_back(CTOR_INITIALIZER_BASE);
5558 Writer.AddTypeSourceInfo(Init->getTypeSourceInfo());
5559 Writer.push_back(Init->isBaseVirtual());
5560 } else if (Init->isDelegatingInitializer()) {
5561 Writer.push_back(CTOR_INITIALIZER_DELEGATING);
5562 Writer.AddTypeSourceInfo(Init->getTypeSourceInfo());
5563 } else if (Init->isMemberInitializer()){
5564 Writer.push_back(CTOR_INITIALIZER_MEMBER);
5565 Writer.AddDeclRef(Init->getMember());
5566 } else {
5567 Writer.push_back(CTOR_INITIALIZER_INDIRECT_MEMBER);
5568 Writer.AddDeclRef(Init->getIndirectMember());
5569 }
5570
5571 Writer.AddSourceLocation(Init->getMemberLocation());
5572 Writer.AddStmt(Init->getInit());
5573 Writer.AddSourceLocation(Init->getLParenLoc());
5574 Writer.AddSourceLocation(Init->getRParenLoc());
5575 Writer.push_back(Init->isWritten());
5576 if (Init->isWritten())
5577 Writer.push_back(Init->getSourceOrder());
5578 }
5579
5580 return Writer.Emit(serialization::DECL_CXX_CTOR_INITIALIZERS);
5581}
5582
5583// FIXME: Move this out of the main ASTRecordWriter interface.
5584void ASTRecordWriter::AddCXXCtorInitializers(
5585 ArrayRef<CXXCtorInitializer *> CtorInits) {
5586 AddOffset(EmitCXXCtorInitializers(*Writer, CtorInits));
5587}
5588
5589void ASTRecordWriter::AddCXXDefinitionData(const CXXRecordDecl *D) {
5590 auto &Data = D->data();
5591 Record->push_back(Data.IsLambda);
5592
5593 #define FIELD(Name, Width, Merge) \
5594 Record->push_back(Data.Name);
5595 #include "clang/AST/CXXRecordDeclDefinitionBits.def"
5596
5597 // getODRHash will compute the ODRHash if it has not been previously computed.
5598 Record->push_back(D->getODRHash());
5599 bool ModulesDebugInfo = Writer->Context->getLangOpts().ModulesDebugInfo &&
5600 Writer->WritingModule && !D->isDependentType();
5601 Record->push_back(ModulesDebugInfo);
5602 if (ModulesDebugInfo)
5603 Writer->ModularCodegenDecls.push_back(Writer->GetDeclRef(D));
5604
5605 // IsLambda bit is already saved.
5606
5607 Record->push_back(Data.NumBases);
5608 if (Data.NumBases > 0)
5609 AddCXXBaseSpecifiers(Data.bases());
5610
5611 // FIXME: Make VBases lazily computed when needed to avoid storing them.
5612 Record->push_back(Data.NumVBases);
5613 if (Data.NumVBases > 0)
5614 AddCXXBaseSpecifiers(Data.vbases());
5615
5616 AddUnresolvedSet(Data.Conversions.get(*Writer->Context));
5617 Record->push_back(Data.ComputedVisibleConversions);
5618 if (Data.ComputedVisibleConversions)
5619 AddUnresolvedSet(Data.VisibleConversions.get(*Writer->Context));
5620 // Data.Definition is the owning decl, no need to write it.
5621 AddDeclRef(D->getFirstFriend());
5622
5623 // Add lambda-specific data.
5624 if (Data.IsLambda) {
5625 auto &Lambda = D->getLambdaData();
5626 Record->push_back(Lambda.Dependent);
5627 Record->push_back(Lambda.IsGenericLambda);
5628 Record->push_back(Lambda.CaptureDefault);
5629 Record->push_back(Lambda.NumCaptures);
5630 Record->push_back(Lambda.NumExplicitCaptures);
5631 Record->push_back(Lambda.HasKnownInternalLinkage);
5632 Record->push_back(Lambda.ManglingNumber);
5633 AddDeclRef(D->getLambdaContextDecl());
5634 AddTypeSourceInfo(Lambda.MethodTyInfo);
5635 for (unsigned I = 0, N = Lambda.NumCaptures; I != N; ++I) {
5636 const LambdaCapture &Capture = Lambda.Captures[I];
5637 AddSourceLocation(Capture.getLocation());
5638 Record->push_back(Capture.isImplicit());
5639 Record->push_back(Capture.getCaptureKind());
5640 switch (Capture.getCaptureKind()) {
5641 case LCK_StarThis:
5642 case LCK_This:
5643 case LCK_VLAType:
5644 break;
5645 case LCK_ByCopy:
5646 case LCK_ByRef:
5647 VarDecl *Var =
5648 Capture.capturesVariable() ? Capture.getCapturedVar() : nullptr;
5649 AddDeclRef(Var);
5650 AddSourceLocation(Capture.isPackExpansion() ? Capture.getEllipsisLoc()
5651 : SourceLocation());
5652 break;
5653 }
5654 }
5655 }
5656}
5657
5658void ASTWriter::ReaderInitialized(ASTReader *Reader) {
5659 assert(Reader && "Cannot remove chain")((Reader && "Cannot remove chain") ? static_cast<void
> (0) : __assert_fail ("Reader && \"Cannot remove chain\""
, "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5659, __PRETTY_FUNCTION__))
;
5660 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5660, __PRETTY_FUNCTION__))
;
5661 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5667, __PRETTY_FUNCTION__))
5662 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5667, __PRETTY_FUNCTION__))
5663 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5667, __PRETTY_FUNCTION__))
5664 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5667, __PRETTY_FUNCTION__))
5665 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5667, __PRETTY_FUNCTION__))
5666 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5667, __PRETTY_FUNCTION__))
5667 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5667, __PRETTY_FUNCTION__))
;
5668
5669 Chain = Reader;
5670
5671 // Note, this will get called multiple times, once one the reader starts up
5672 // and again each time it's done reading a PCH or module.
5673 FirstDeclID = NUM_PREDEF_DECL_IDS + Chain->getTotalNumDecls();
5674 FirstTypeID = NUM_PREDEF_TYPE_IDS + Chain->getTotalNumTypes();
5675 FirstIdentID = NUM_PREDEF_IDENT_IDS + Chain->getTotalNumIdentifiers();
5676 FirstMacroID = NUM_PREDEF_MACRO_IDS + Chain->getTotalNumMacros();
5677 FirstSubmoduleID = NUM_PREDEF_SUBMODULE_IDS + Chain->getTotalNumSubmodules();
5678 FirstSelectorID = NUM_PREDEF_SELECTOR_IDS + Chain->getTotalNumSelectors();
5679 NextDeclID = FirstDeclID;
5680 NextTypeID = FirstTypeID;
5681 NextIdentID = FirstIdentID;
5682 NextMacroID = FirstMacroID;
5683 NextSelectorID = FirstSelectorID;
5684 NextSubmoduleID = FirstSubmoduleID;
5685}
5686
5687void ASTWriter::IdentifierRead(IdentID ID, IdentifierInfo *II) {
5688 // Always keep the highest ID. See \p TypeRead() for more information.
5689 IdentID &StoredID = IdentifierIDs[II];
5690 if (ID > StoredID)
5691 StoredID = ID;
5692}
5693
5694void ASTWriter::MacroRead(serialization::MacroID ID, MacroInfo *MI) {
5695 // Always keep the highest ID. See \p TypeRead() for more information.
5696 MacroID &StoredID = MacroIDs[MI];
5697 if (ID > StoredID)
5698 StoredID = ID;
5699}
5700
5701void ASTWriter::TypeRead(TypeIdx Idx, QualType T) {
5702 // Always take the highest-numbered type index. This copes with an interesting
5703 // case for chained AST writing where we schedule writing the type and then,
5704 // later, deserialize the type from another AST. In this case, we want to
5705 // keep the higher-numbered entry so that we can properly write it out to
5706 // the AST file.
5707 TypeIdx &StoredIdx = TypeIdxs[T];
5708 if (Idx.getIndex() >= StoredIdx.getIndex())
5709 StoredIdx = Idx;
5710}
5711
5712void ASTWriter::SelectorRead(SelectorID ID, Selector S) {
5713 // Always keep the highest ID. See \p TypeRead() for more information.
5714 SelectorID &StoredID = SelectorIDs[S];
5715 if (ID > StoredID)
5716 StoredID = ID;
5717}
5718
5719void ASTWriter::MacroDefinitionRead(serialization::PreprocessedEntityID ID,
5720 MacroDefinitionRecord *MD) {
5721 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5721, __PRETTY_FUNCTION__))
;
5722 MacroDefinitions[MD] = ID;
5723}
5724
5725void ASTWriter::ModuleRead(serialization::SubmoduleID ID, Module *Mod) {
5726 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5726, __PRETTY_FUNCTION__))
;
5727 SubmoduleIDs[Mod] = ID;
5728}
5729
5730void ASTWriter::CompletedTagDefinition(const TagDecl *D) {
5731 if (Chain && Chain->isProcessingUpdateRecords()) return;
5732 assert(D->isCompleteDefinition())((D->isCompleteDefinition()) ? static_cast<void> (0)
: __assert_fail ("D->isCompleteDefinition()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5732, __PRETTY_FUNCTION__))
;
5733 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5733, __PRETTY_FUNCTION__))
;
5734 if (auto *RD = dyn_cast<CXXRecordDecl>(D)) {
5735 // We are interested when a PCH decl is modified.
5736 if (RD->isFromASTFile()) {
5737 // A forward reference was mutated into a definition. Rewrite it.
5738 // FIXME: This happens during template instantiation, should we
5739 // have created a new definition decl instead ?
5740 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5741, __PRETTY_FUNCTION__))
5741 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5741, __PRETTY_FUNCTION__))
;
5742 DeclUpdates[RD].push_back(
5743 DeclUpdate(UPD_CXX_INSTANTIATED_CLASS_DEFINITION));
5744 }
5745 }
5746}
5747
5748static bool isImportedDeclContext(ASTReader *Chain, const Decl *D) {
5749 if (D->isFromASTFile())
5750 return true;
5751
5752 // The predefined __va_list_tag struct is imported if we imported any decls.
5753 // FIXME: This is a gross hack.
5754 return D == D->getASTContext().getVaListTagDecl();
5755}
5756
5757void ASTWriter::AddedVisibleDecl(const DeclContext *DC, const Decl *D) {
5758 if (Chain && Chain->isProcessingUpdateRecords()) return;
5759 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5760, __PRETTY_FUNCTION__))
5760 "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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5760, __PRETTY_FUNCTION__))
;
5761
5762 // TU is handled elsewhere.
5763 if (isa<TranslationUnitDecl>(DC))
5764 return;
5765
5766 // Namespaces are handled elsewhere, except for template instantiations of
5767 // FunctionTemplateDecls in namespaces. We are interested in cases where the
5768 // local instantiations are added to an imported context. Only happens when
5769 // adding ADL lookup candidates, for example templated friends.
5770 if (isa<NamespaceDecl>(DC) && D->getFriendObjectKind() == Decl::FOK_None &&
5771 !isa<FunctionTemplateDecl>(D))
5772 return;
5773
5774 // We're only interested in cases where a local declaration is added to an
5775 // imported context.
5776 if (D->isFromASTFile() || !isImportedDeclContext(Chain, cast<Decl>(DC)))
5777 return;
5778
5779 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5779, __PRETTY_FUNCTION__))
;
5780 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5780, __PRETTY_FUNCTION__))
;
5781 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5781, __PRETTY_FUNCTION__))
;
5782 if (UpdatedDeclContexts.insert(DC) && !cast<Decl>(DC)->isFromASTFile()) {
5783 // We're adding a visible declaration to a predefined decl context. Ensure
5784 // that we write out all of its lookup results so we don't get a nasty
5785 // surprise when we try to emit its lookup table.
5786 for (auto *Child : DC->decls())
5787 DeclsToEmitEvenIfUnreferenced.push_back(Child);
5788 }
5789 DeclsToEmitEvenIfUnreferenced.push_back(D);
5790}
5791
5792void ASTWriter::AddedCXXImplicitMember(const CXXRecordDecl *RD, const Decl *D) {
5793 if (Chain && Chain->isProcessingUpdateRecords()) return;
5794 assert(D->isImplicit())((D->isImplicit()) ? static_cast<void> (0) : __assert_fail
("D->isImplicit()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5794, __PRETTY_FUNCTION__))
;
5795
5796 // We're only interested in cases where a local declaration is added to an
5797 // imported context.
5798 if (D->isFromASTFile() || !isImportedDeclContext(Chain, RD))
5799 return;
5800
5801 if (!isa<CXXMethodDecl>(D))
5802 return;
5803
5804 // A decl coming from PCH was modified.
5805 assert(RD->isCompleteDefinition())((RD->isCompleteDefinition()) ? static_cast<void> (0
) : __assert_fail ("RD->isCompleteDefinition()", "/build/llvm-toolchain-snapshot-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5805, __PRETTY_FUNCTION__))
;
5806 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5806, __PRETTY_FUNCTION__))
;
5807 DeclUpdates[RD].push_back(DeclUpdate(UPD_CXX_ADDED_IMPLICIT_MEMBER, D));
5808}
5809
5810void ASTWriter::ResolvedExceptionSpec(const FunctionDecl *FD) {
5811 if (Chain && Chain->isProcessingUpdateRecords()) return;
5812 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5812, __PRETTY_FUNCTION__))
;
5813 if (!Chain) return;
5814 Chain->forEachImportedKeyDecl(FD, [&](const Decl *D) {
5815 // If we don't already know the exception specification for this redecl
5816 // chain, add an update record for it.
5817 if (isUnresolvedExceptionSpec(cast<FunctionDecl>(D)
5818 ->getType()
5819 ->castAs<FunctionProtoType>()
5820 ->getExceptionSpecType()))
5821 DeclUpdates[D].push_back(UPD_CXX_RESOLVED_EXCEPTION_SPEC);
5822 });
5823}
5824
5825void ASTWriter::DeducedReturnType(const FunctionDecl *FD, QualType ReturnType) {
5826 if (Chain && Chain->isProcessingUpdateRecords()) return;
5827 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5827, __PRETTY_FUNCTION__))
;
5828 if (!Chain) return;
5829 Chain->forEachImportedKeyDecl(FD, [&](const Decl *D) {
5830 DeclUpdates[D].push_back(
5831 DeclUpdate(UPD_CXX_DEDUCED_RETURN_TYPE, ReturnType));
5832 });
5833}
5834
5835void ASTWriter::ResolvedOperatorDelete(const CXXDestructorDecl *DD,
5836 const FunctionDecl *Delete,
5837 Expr *ThisArg) {
5838 if (Chain && Chain->isProcessingUpdateRecords()) return;
5839 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5839, __PRETTY_FUNCTION__))
;
5840 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5840, __PRETTY_FUNCTION__))
;
5841 if (!Chain) return;
5842 Chain->forEachImportedKeyDecl(DD, [&](const Decl *D) {
5843 DeclUpdates[D].push_back(DeclUpdate(UPD_CXX_RESOLVED_DTOR_DELETE, Delete));
5844 });
5845}
5846
5847void ASTWriter::CompletedImplicitDefinition(const FunctionDecl *D) {
5848 if (Chain && Chain->isProcessingUpdateRecords()) return;
5849 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5849, __PRETTY_FUNCTION__))
;
5850 if (!D->isFromASTFile())
5851 return; // Declaration not imported from PCH.
5852
5853 // Implicit function decl from a PCH was defined.
5854 DeclUpdates[D].push_back(DeclUpdate(UPD_CXX_ADDED_FUNCTION_DEFINITION));
5855}
5856
5857void ASTWriter::VariableDefinitionInstantiated(const VarDecl *D) {
5858 if (Chain && Chain->isProcessingUpdateRecords()) return;
5859 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5859, __PRETTY_FUNCTION__))
;
5860 if (!D->isFromASTFile())
5861 return;
5862
5863 DeclUpdates[D].push_back(DeclUpdate(UPD_CXX_ADDED_VAR_DEFINITION));
5864}
5865
5866void ASTWriter::FunctionDefinitionInstantiated(const FunctionDecl *D) {
5867 if (Chain && Chain->isProcessingUpdateRecords()) return;
5868 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5868, __PRETTY_FUNCTION__))
;
5869 if (!D->isFromASTFile())
5870 return;
5871
5872 DeclUpdates[D].push_back(DeclUpdate(UPD_CXX_ADDED_FUNCTION_DEFINITION));
5873}
5874
5875void ASTWriter::InstantiationRequested(const ValueDecl *D) {
5876 if (Chain && Chain->isProcessingUpdateRecords()) return;
5877 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5877, __PRETTY_FUNCTION__))
;
5878 if (!D->isFromASTFile())
5879 return;
5880
5881 // Since the actual instantiation is delayed, this really means that we need
5882 // to update the instantiation location.
5883 SourceLocation POI;
5884 if (auto *VD = dyn_cast<VarDecl>(D))
5885 POI = VD->getPointOfInstantiation();
5886 else
5887 POI = cast<FunctionDecl>(D)->getPointOfInstantiation();
5888 DeclUpdates[D].push_back(DeclUpdate(UPD_CXX_POINT_OF_INSTANTIATION, POI));
5889}
5890
5891void ASTWriter::DefaultArgumentInstantiated(const ParmVarDecl *D) {
5892 if (Chain && Chain->isProcessingUpdateRecords()) return;
5893 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5893, __PRETTY_FUNCTION__))
;
5894 if (!D->isFromASTFile())
5895 return;
5896
5897 DeclUpdates[D].push_back(
5898 DeclUpdate(UPD_CXX_INSTANTIATED_DEFAULT_ARGUMENT, D));
5899}
5900
5901void ASTWriter::DefaultMemberInitializerInstantiated(const FieldDecl *D) {
5902 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5902, __PRETTY_FUNCTION__))
;
5903 if (!D->isFromASTFile())
5904 return;
5905
5906 DeclUpdates[D].push_back(
5907 DeclUpdate(UPD_CXX_INSTANTIATED_DEFAULT_MEMBER_INITIALIZER, D));
5908}
5909
5910void ASTWriter::AddedObjCCategoryToInterface(const ObjCCategoryDecl *CatD,
5911 const ObjCInterfaceDecl *IFD) {
5912 if (Chain && Chain->isProcessingUpdateRecords()) return;
5913 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5913, __PRETTY_FUNCTION__))
;
5914 if (!IFD->isFromASTFile())
5915 return; // Declaration not imported from PCH.
5916
5917 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5917, __PRETTY_FUNCTION__))
;
5918 ObjCClassesWithCategories.insert(
5919 const_cast<ObjCInterfaceDecl *>(IFD->getDefinition()));
5920}
5921
5922void ASTWriter::DeclarationMarkedUsed(const Decl *D) {
5923 if (Chain && Chain->isProcessingUpdateRecords()) return;
5924 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5924, __PRETTY_FUNCTION__))
;
5925
5926 // If there is *any* declaration of the entity that's not from an AST file,
5927 // we can skip writing the update record. We make sure that isUsed() triggers
5928 // completion of the redeclaration chain of the entity.
5929 for (auto Prev = D->getMostRecentDecl(); Prev; Prev = Prev->getPreviousDecl())
5930 if (IsLocalDecl(Prev))
5931 return;
5932
5933 DeclUpdates[D].push_back(DeclUpdate(UPD_DECL_MARKED_USED));
5934}
5935
5936void ASTWriter::DeclarationMarkedOpenMPThreadPrivate(const Decl *D) {
5937 if (Chain && Chain->isProcessingUpdateRecords()) return;
5938 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5938, __PRETTY_FUNCTION__))
;
5939 if (!D->isFromASTFile())
5940 return;
5941
5942 DeclUpdates[D].push_back(DeclUpdate(UPD_DECL_MARKED_OPENMP_THREADPRIVATE));
5943}
5944
5945void ASTWriter::DeclarationMarkedOpenMPAllocate(const Decl *D, const Attr *A) {
5946 if (Chain && Chain->isProcessingUpdateRecords()) return;
5947 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5947, __PRETTY_FUNCTION__))
;
5948 if (!D->isFromASTFile())
5949 return;
5950
5951 DeclUpdates[D].push_back(DeclUpdate(UPD_DECL_MARKED_OPENMP_ALLOCATE, A));
5952}
5953
5954void ASTWriter::DeclarationMarkedOpenMPDeclareTarget(const Decl *D,
5955 const Attr *Attr) {
5956 if (Chain && Chain->isProcessingUpdateRecords()) return;
5957 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5957, __PRETTY_FUNCTION__))
;
5958 if (!D->isFromASTFile())
5959 return;
5960
5961 DeclUpdates[D].push_back(
5962 DeclUpdate(UPD_DECL_MARKED_OPENMP_DECLARETARGET, Attr));
5963}
5964
5965void ASTWriter::RedefinedHiddenDefinition(const NamedDecl *D, Module *M) {
5966 if (Chain && Chain->isProcessingUpdateRecords()) return;
5967 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5967, __PRETTY_FUNCTION__))
;
5968 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5968, __PRETTY_FUNCTION__))
;
5969 DeclUpdates[D].push_back(DeclUpdate(UPD_DECL_EXPORTED, M));
5970}
5971
5972void ASTWriter::AddedAttributeToRecord(const Attr *Attr,
5973 const RecordDecl *Record) {
5974 if (Chain && Chain->isProcessingUpdateRecords()) return;
5975 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5975, __PRETTY_FUNCTION__))
;
5976 if (!Record->isFromASTFile())
5977 return;
5978 DeclUpdates[Record].push_back(DeclUpdate(UPD_ADDED_ATTR_TO_RECORD, Attr));
5979}
5980
5981void ASTWriter::AddedCXXTemplateSpecialization(
5982 const ClassTemplateDecl *TD, const ClassTemplateSpecializationDecl *D) {
5983 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5983, __PRETTY_FUNCTION__))
;
5984
5985 if (!TD->getFirstDecl()->isFromASTFile())
5986 return;
5987 if (Chain && Chain->isProcessingUpdateRecords())
5988 return;
5989
5990 DeclsToEmitEvenIfUnreferenced.push_back(D);
5991}
5992
5993void ASTWriter::AddedCXXTemplateSpecialization(
5994 const VarTemplateDecl *TD, const VarTemplateSpecializationDecl *D) {
5995 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 5995, __PRETTY_FUNCTION__))
;
5996
5997 if (!TD->getFirstDecl()->isFromASTFile())
5998 return;
5999 if (Chain && Chain->isProcessingUpdateRecords())
6000 return;
6001
6002 DeclsToEmitEvenIfUnreferenced.push_back(D);
6003}
6004
6005void ASTWriter::AddedCXXTemplateSpecialization(const FunctionTemplateDecl *TD,
6006 const FunctionDecl *D) {
6007 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-11~++20200309111110+2c36c23f347/clang/lib/Serialization/ASTWriter.cpp"
, 6007, __PRETTY_FUNCTION__))
;
6008
6009 if (!TD->getFirstDecl()->isFromASTFile())
6010 return;
6011 if (Chain && Chain->isProcessingUpdateRecords())
6012 return;
6013
6014 DeclsToEmitEvenIfUnreferenced.push_back(D);
6015}
6016
6017//===----------------------------------------------------------------------===//
6018//// OMPClause Serialization
6019////===----------------------------------------------------------------------===//
6020
6021namespace {
6022
6023class OMPClauseWriter : public OMPClauseVisitor<OMPClauseWriter> {
6024 ASTRecordWriter &Record;
6025
6026public:
6027 OMPClauseWriter(ASTRecordWriter &Record) : Record(Record) {}
6028#define OPENMP_CLAUSE(Name, Class) void Visit##Class(Class *S);
6029#include "clang/Basic/OpenMPKinds.def"
6030 void writeClause(OMPClause *C);
6031 void VisitOMPClauseWithPreInit(OMPClauseWithPreInit *C);
6032 void VisitOMPClauseWithPostUpdate(OMPClauseWithPostUpdate *C);
6033};
6034
6035}
6036
6037void ASTRecordWriter::writeOMPClause(OMPClause *C) {
6038 OMPClauseWriter(*this).writeClause(C);
6039}
6040