1 //===- ASTReaderStmt.cpp - Stmt/Expr Deserialization ----------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // Statement/expression deserialization.  This implements the
11 // ASTReader::ReadStmt method.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #include "clang/Serialization/ASTReader.h"
16 #include "clang/AST/ASTContext.h"
17 #include "clang/AST/AttrIterator.h"
18 #include "clang/AST/Decl.h"
19 #include "clang/AST/DeclAccessPair.h"
20 #include "clang/AST/DeclCXX.h"
21 #include "clang/AST/DeclGroup.h"
22 #include "clang/AST/DeclObjC.h"
23 #include "clang/AST/DeclTemplate.h"
24 #include "clang/AST/DeclarationName.h"
25 #include "clang/AST/Expr.h"
26 #include "clang/AST/ExprCXX.h"
27 #include "clang/AST/ExprObjC.h"
28 #include "clang/AST/ExprOpenMP.h"
29 #include "clang/AST/NestedNameSpecifier.h"
30 #include "clang/AST/OpenMPClause.h"
31 #include "clang/AST/OperationKinds.h"
32 #include "clang/AST/Stmt.h"
33 #include "clang/AST/StmtCXX.h"
34 #include "clang/AST/StmtObjC.h"
35 #include "clang/AST/StmtOpenMP.h"
36 #include "clang/AST/StmtVisitor.h"
37 #include "clang/AST/TemplateBase.h"
38 #include "clang/AST/Type.h"
39 #include "clang/AST/UnresolvedSet.h"
40 #include "clang/Basic/CapturedStmt.h"
41 #include "clang/Basic/ExpressionTraits.h"
42 #include "clang/Basic/LLVM.h"
43 #include "clang/Basic/Lambda.h"
44 #include "clang/Basic/LangOptions.h"
45 #include "clang/Basic/OpenMPKinds.h"
46 #include "clang/Basic/OperatorKinds.h"
47 #include "clang/Basic/SourceLocation.h"
48 #include "clang/Basic/Specifiers.h"
49 #include "clang/Basic/TypeTraits.h"
50 #include "clang/Lex/Token.h"
51 #include "clang/Serialization/ASTBitCodes.h"
52 #include "llvm/ADT/DenseMap.h"
53 #include "llvm/ADT/SmallString.h"
54 #include "llvm/ADT/SmallVector.h"
55 #include "llvm/ADT/StringRef.h"
56 #include "llvm/Bitcode/BitstreamReader.h"
57 #include "llvm/Support/Casting.h"
58 #include "llvm/Support/ErrorHandling.h"
59 #include <algorithm>
60 #include <cassert>
61 #include <cstdint>
62 #include <string>
63 
64 using namespace clang;
65 using namespace serialization;
66 
67 namespace clang {
68 
69   class ASTStmtReader : public StmtVisitor<ASTStmtReader> {
70     friend class OMPClauseReader;
71 
72     ASTRecordReader &Record;
73     llvm::BitstreamCursor &DeclsCursor;
74 
75     SourceLocation ReadSourceLocation() {
76       return Record.readSourceLocation();
77     }
78 
79     SourceRange ReadSourceRange() {
80       return Record.readSourceRange();
81     }
82 
83     std::string ReadString() {
84       return Record.readString();
85     }
86 
87     TypeSourceInfo *GetTypeSourceInfo() {
88       return Record.getTypeSourceInfo();
89     }
90 
91     Decl *ReadDecl() {
92       return Record.readDecl();
93     }
94 
95     template<typename T>
96     T *ReadDeclAs() {
97       return Record.readDeclAs<T>();
98     }
99 
100     void ReadDeclarationNameLoc(DeclarationNameLoc &DNLoc,
101                                 DeclarationName Name) {
102       Record.readDeclarationNameLoc(DNLoc, Name);
103     }
104 
105     void ReadDeclarationNameInfo(DeclarationNameInfo &NameInfo) {
106       Record.readDeclarationNameInfo(NameInfo);
107     }
108 
109   public:
110     ASTStmtReader(ASTRecordReader &Record, llvm::BitstreamCursor &Cursor)
111         : Record(Record), DeclsCursor(Cursor) {}
112 
113     /// The number of record fields required for the Stmt class
114     /// itself.
115     static const unsigned NumStmtFields = 0;
116 
117     /// The number of record fields required for the Expr class
118     /// itself.
119     static const unsigned NumExprFields = NumStmtFields + 7;
120 
121     /// Read and initialize a ExplicitTemplateArgumentList structure.
122     void ReadTemplateKWAndArgsInfo(ASTTemplateKWAndArgsInfo &Args,
123                                    TemplateArgumentLoc *ArgsLocArray,
124                                    unsigned NumTemplateArgs);
125 
126     /// Read and initialize a ExplicitTemplateArgumentList structure.
127     void ReadExplicitTemplateArgumentList(ASTTemplateArgumentListInfo &ArgList,
128                                           unsigned NumTemplateArgs);
129 
130     void VisitStmt(Stmt *S);
131 #define STMT(Type, Base) \
132     void Visit##Type(Type *);
133 #include "clang/AST/StmtNodes.inc"
134   };
135 
136 } // namespace clang
137 
138 void ASTStmtReader::ReadTemplateKWAndArgsInfo(ASTTemplateKWAndArgsInfo &Args,
139                                               TemplateArgumentLoc *ArgsLocArray,
140                                               unsigned NumTemplateArgs) {
141   SourceLocation TemplateKWLoc = ReadSourceLocation();
142   TemplateArgumentListInfo ArgInfo;
143   ArgInfo.setLAngleLoc(ReadSourceLocation());
144   ArgInfo.setRAngleLoc(ReadSourceLocation());
145   for (unsigned i = 0; i != NumTemplateArgs; ++i)
146     ArgInfo.addArgument(Record.readTemplateArgumentLoc());
147   Args.initializeFrom(TemplateKWLoc, ArgInfo, ArgsLocArray);
148 }
149 
150 void ASTStmtReader::VisitStmt(Stmt *S) {
151   assert(Record.getIdx() == NumStmtFields && "Incorrect statement field count");
152 }
153 
154 void ASTStmtReader::VisitNullStmt(NullStmt *S) {
155   VisitStmt(S);
156   S->setSemiLoc(ReadSourceLocation());
157   S->HasLeadingEmptyMacro = Record.readInt();
158 }
159 
160 void ASTStmtReader::VisitCompoundStmt(CompoundStmt *S) {
161   VisitStmt(S);
162   SmallVector<Stmt *, 16> Stmts;
163   unsigned NumStmts = Record.readInt();
164   while (NumStmts--)
165     Stmts.push_back(Record.readSubStmt());
166   S->setStmts(Stmts);
167   S->LBraceLoc = ReadSourceLocation();
168   S->RBraceLoc = ReadSourceLocation();
169 }
170 
171 void ASTStmtReader::VisitSwitchCase(SwitchCase *S) {
172   VisitStmt(S);
173   Record.recordSwitchCaseID(S, Record.readInt());
174   S->setKeywordLoc(ReadSourceLocation());
175   S->setColonLoc(ReadSourceLocation());
176 }
177 
178 void ASTStmtReader::VisitCaseStmt(CaseStmt *S) {
179   VisitSwitchCase(S);
180   S->setLHS(Record.readSubExpr());
181   S->setRHS(Record.readSubExpr());
182   S->setSubStmt(Record.readSubStmt());
183   S->setEllipsisLoc(ReadSourceLocation());
184 }
185 
186 void ASTStmtReader::VisitDefaultStmt(DefaultStmt *S) {
187   VisitSwitchCase(S);
188   S->setSubStmt(Record.readSubStmt());
189 }
190 
191 void ASTStmtReader::VisitLabelStmt(LabelStmt *S) {
192   VisitStmt(S);
193   auto *LD = ReadDeclAs<LabelDecl>();
194   LD->setStmt(S);
195   S->setDecl(LD);
196   S->setSubStmt(Record.readSubStmt());
197   S->setIdentLoc(ReadSourceLocation());
198 }
199 
200 void ASTStmtReader::VisitAttributedStmt(AttributedStmt *S) {
201   VisitStmt(S);
202   uint64_t NumAttrs = Record.readInt();
203   AttrVec Attrs;
204   Record.readAttributes(Attrs);
205   (void)NumAttrs;
206   assert(NumAttrs == S->NumAttrs);
207   assert(NumAttrs == Attrs.size());
208   std::copy(Attrs.begin(), Attrs.end(), S->getAttrArrayPtr());
209   S->SubStmt = Record.readSubStmt();
210   S->AttrLoc = ReadSourceLocation();
211 }
212 
213 void ASTStmtReader::VisitIfStmt(IfStmt *S) {
214   VisitStmt(S);
215   S->setConstexpr(Record.readInt());
216   S->setInit(Record.readSubStmt());
217   S->setConditionVariable(Record.getContext(), ReadDeclAs<VarDecl>());
218   S->setCond(Record.readSubExpr());
219   S->setThen(Record.readSubStmt());
220   S->setElse(Record.readSubStmt());
221   S->setIfLoc(ReadSourceLocation());
222   S->setElseLoc(ReadSourceLocation());
223 }
224 
225 void ASTStmtReader::VisitSwitchStmt(SwitchStmt *S) {
226   VisitStmt(S);
227   S->setInit(Record.readSubStmt());
228   S->setConditionVariable(Record.getContext(), ReadDeclAs<VarDecl>());
229   S->setCond(Record.readSubExpr());
230   S->setBody(Record.readSubStmt());
231   S->setSwitchLoc(ReadSourceLocation());
232   if (Record.readInt())
233     S->setAllEnumCasesCovered();
234 
235   SwitchCase *PrevSC = nullptr;
236   for (auto E = Record.size(); Record.getIdx() != E; ) {
237     SwitchCase *SC = Record.getSwitchCaseWithID(Record.readInt());
238     if (PrevSC)
239       PrevSC->setNextSwitchCase(SC);
240     else
241       S->setSwitchCaseList(SC);
242 
243     PrevSC = SC;
244   }
245 }
246 
247 void ASTStmtReader::VisitWhileStmt(WhileStmt *S) {
248   VisitStmt(S);
249   S->setConditionVariable(Record.getContext(), ReadDeclAs<VarDecl>());
250 
251   S->setCond(Record.readSubExpr());
252   S->setBody(Record.readSubStmt());
253   S->setWhileLoc(ReadSourceLocation());
254 }
255 
256 void ASTStmtReader::VisitDoStmt(DoStmt *S) {
257   VisitStmt(S);
258   S->setCond(Record.readSubExpr());
259   S->setBody(Record.readSubStmt());
260   S->setDoLoc(ReadSourceLocation());
261   S->setWhileLoc(ReadSourceLocation());
262   S->setRParenLoc(ReadSourceLocation());
263 }
264 
265 void ASTStmtReader::VisitForStmt(ForStmt *S) {
266   VisitStmt(S);
267   S->setInit(Record.readSubStmt());
268   S->setCond(Record.readSubExpr());
269   S->setConditionVariable(Record.getContext(), ReadDeclAs<VarDecl>());
270   S->setInc(Record.readSubExpr());
271   S->setBody(Record.readSubStmt());
272   S->setForLoc(ReadSourceLocation());
273   S->setLParenLoc(ReadSourceLocation());
274   S->setRParenLoc(ReadSourceLocation());
275 }
276 
277 void ASTStmtReader::VisitGotoStmt(GotoStmt *S) {
278   VisitStmt(S);
279   S->setLabel(ReadDeclAs<LabelDecl>());
280   S->setGotoLoc(ReadSourceLocation());
281   S->setLabelLoc(ReadSourceLocation());
282 }
283 
284 void ASTStmtReader::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
285   VisitStmt(S);
286   S->setGotoLoc(ReadSourceLocation());
287   S->setStarLoc(ReadSourceLocation());
288   S->setTarget(Record.readSubExpr());
289 }
290 
291 void ASTStmtReader::VisitContinueStmt(ContinueStmt *S) {
292   VisitStmt(S);
293   S->setContinueLoc(ReadSourceLocation());
294 }
295 
296 void ASTStmtReader::VisitBreakStmt(BreakStmt *S) {
297   VisitStmt(S);
298   S->setBreakLoc(ReadSourceLocation());
299 }
300 
301 void ASTStmtReader::VisitReturnStmt(ReturnStmt *S) {
302   VisitStmt(S);
303   S->setRetValue(Record.readSubExpr());
304   S->setReturnLoc(ReadSourceLocation());
305   S->setNRVOCandidate(ReadDeclAs<VarDecl>());
306 }
307 
308 void ASTStmtReader::VisitDeclStmt(DeclStmt *S) {
309   VisitStmt(S);
310   S->setStartLoc(ReadSourceLocation());
311   S->setEndLoc(ReadSourceLocation());
312 
313   if (Record.size() - Record.getIdx() == 1) {
314     // Single declaration
315     S->setDeclGroup(DeclGroupRef(ReadDecl()));
316   } else {
317     SmallVector<Decl *, 16> Decls;
318     int N = Record.size() - Record.getIdx();
319     Decls.reserve(N);
320     for (int I = 0; I < N; ++I)
321       Decls.push_back(ReadDecl());
322     S->setDeclGroup(DeclGroupRef(DeclGroup::Create(Record.getContext(),
323                                                    Decls.data(),
324                                                    Decls.size())));
325   }
326 }
327 
328 void ASTStmtReader::VisitAsmStmt(AsmStmt *S) {
329   VisitStmt(S);
330   S->NumOutputs = Record.readInt();
331   S->NumInputs = Record.readInt();
332   S->NumClobbers = Record.readInt();
333   S->setAsmLoc(ReadSourceLocation());
334   S->setVolatile(Record.readInt());
335   S->setSimple(Record.readInt());
336 }
337 
338 void ASTStmtReader::VisitGCCAsmStmt(GCCAsmStmt *S) {
339   VisitAsmStmt(S);
340   S->setRParenLoc(ReadSourceLocation());
341   S->setAsmString(cast_or_null<StringLiteral>(Record.readSubStmt()));
342 
343   unsigned NumOutputs = S->getNumOutputs();
344   unsigned NumInputs = S->getNumInputs();
345   unsigned NumClobbers = S->getNumClobbers();
346 
347   // Outputs and inputs
348   SmallVector<IdentifierInfo *, 16> Names;
349   SmallVector<StringLiteral*, 16> Constraints;
350   SmallVector<Stmt*, 16> Exprs;
351   for (unsigned I = 0, N = NumOutputs + NumInputs; I != N; ++I) {
352     Names.push_back(Record.getIdentifierInfo());
353     Constraints.push_back(cast_or_null<StringLiteral>(Record.readSubStmt()));
354     Exprs.push_back(Record.readSubStmt());
355   }
356 
357   // Constraints
358   SmallVector<StringLiteral*, 16> Clobbers;
359   for (unsigned I = 0; I != NumClobbers; ++I)
360     Clobbers.push_back(cast_or_null<StringLiteral>(Record.readSubStmt()));
361 
362   S->setOutputsAndInputsAndClobbers(Record.getContext(),
363                                     Names.data(), Constraints.data(),
364                                     Exprs.data(), NumOutputs, NumInputs,
365                                     Clobbers.data(), NumClobbers);
366 }
367 
368 void ASTStmtReader::VisitMSAsmStmt(MSAsmStmt *S) {
369   VisitAsmStmt(S);
370   S->LBraceLoc = ReadSourceLocation();
371   S->EndLoc = ReadSourceLocation();
372   S->NumAsmToks = Record.readInt();
373   std::string AsmStr = ReadString();
374 
375   // Read the tokens.
376   SmallVector<Token, 16> AsmToks;
377   AsmToks.reserve(S->NumAsmToks);
378   for (unsigned i = 0, e = S->NumAsmToks; i != e; ++i) {
379     AsmToks.push_back(Record.readToken());
380   }
381 
382   // The calls to reserve() for the FooData vectors are mandatory to
383   // prevent dead StringRefs in the Foo vectors.
384 
385   // Read the clobbers.
386   SmallVector<std::string, 16> ClobbersData;
387   SmallVector<StringRef, 16> Clobbers;
388   ClobbersData.reserve(S->NumClobbers);
389   Clobbers.reserve(S->NumClobbers);
390   for (unsigned i = 0, e = S->NumClobbers; i != e; ++i) {
391     ClobbersData.push_back(ReadString());
392     Clobbers.push_back(ClobbersData.back());
393   }
394 
395   // Read the operands.
396   unsigned NumOperands = S->NumOutputs + S->NumInputs;
397   SmallVector<Expr*, 16> Exprs;
398   SmallVector<std::string, 16> ConstraintsData;
399   SmallVector<StringRef, 16> Constraints;
400   Exprs.reserve(NumOperands);
401   ConstraintsData.reserve(NumOperands);
402   Constraints.reserve(NumOperands);
403   for (unsigned i = 0; i != NumOperands; ++i) {
404     Exprs.push_back(cast<Expr>(Record.readSubStmt()));
405     ConstraintsData.push_back(ReadString());
406     Constraints.push_back(ConstraintsData.back());
407   }
408 
409   S->initialize(Record.getContext(), AsmStr, AsmToks,
410                 Constraints, Exprs, Clobbers);
411 }
412 
413 void ASTStmtReader::VisitCoroutineBodyStmt(CoroutineBodyStmt *S) {
414   VisitStmt(S);
415   assert(Record.peekInt() == S->NumParams);
416   Record.skipInts(1);
417   auto *StoredStmts = S->getStoredStmts();
418   for (unsigned i = 0;
419        i < CoroutineBodyStmt::SubStmt::FirstParamMove + S->NumParams; ++i)
420     StoredStmts[i] = Record.readSubStmt();
421 }
422 
423 void ASTStmtReader::VisitCoreturnStmt(CoreturnStmt *S) {
424   VisitStmt(S);
425   S->CoreturnLoc = Record.readSourceLocation();
426   for (auto &SubStmt: S->SubStmts)
427     SubStmt = Record.readSubStmt();
428   S->IsImplicit = Record.readInt() != 0;
429 }
430 
431 void ASTStmtReader::VisitCoawaitExpr(CoawaitExpr *E) {
432   VisitExpr(E);
433   E->KeywordLoc = ReadSourceLocation();
434   for (auto &SubExpr: E->SubExprs)
435     SubExpr = Record.readSubStmt();
436   E->OpaqueValue = cast_or_null<OpaqueValueExpr>(Record.readSubStmt());
437   E->setIsImplicit(Record.readInt() != 0);
438 }
439 
440 void ASTStmtReader::VisitCoyieldExpr(CoyieldExpr *E) {
441   VisitExpr(E);
442   E->KeywordLoc = ReadSourceLocation();
443   for (auto &SubExpr: E->SubExprs)
444     SubExpr = Record.readSubStmt();
445   E->OpaqueValue = cast_or_null<OpaqueValueExpr>(Record.readSubStmt());
446 }
447 
448 void ASTStmtReader::VisitDependentCoawaitExpr(DependentCoawaitExpr *E) {
449   VisitExpr(E);
450   E->KeywordLoc = ReadSourceLocation();
451   for (auto &SubExpr: E->SubExprs)
452     SubExpr = Record.readSubStmt();
453 }
454 
455 void ASTStmtReader::VisitCapturedStmt(CapturedStmt *S) {
456   VisitStmt(S);
457   Record.skipInts(1);
458   S->setCapturedDecl(ReadDeclAs<CapturedDecl>());
459   S->setCapturedRegionKind(static_cast<CapturedRegionKind>(Record.readInt()));
460   S->setCapturedRecordDecl(ReadDeclAs<RecordDecl>());
461 
462   // Capture inits
463   for (CapturedStmt::capture_init_iterator I = S->capture_init_begin(),
464                                            E = S->capture_init_end();
465        I != E; ++I)
466     *I = Record.readSubExpr();
467 
468   // Body
469   S->setCapturedStmt(Record.readSubStmt());
470   S->getCapturedDecl()->setBody(S->getCapturedStmt());
471 
472   // Captures
473   for (auto &I : S->captures()) {
474     I.VarAndKind.setPointer(ReadDeclAs<VarDecl>());
475     I.VarAndKind.setInt(
476         static_cast<CapturedStmt::VariableCaptureKind>(Record.readInt()));
477     I.Loc = ReadSourceLocation();
478   }
479 }
480 
481 void ASTStmtReader::VisitExpr(Expr *E) {
482   VisitStmt(E);
483   E->setType(Record.readType());
484   E->setTypeDependent(Record.readInt());
485   E->setValueDependent(Record.readInt());
486   E->setInstantiationDependent(Record.readInt());
487   E->ExprBits.ContainsUnexpandedParameterPack = Record.readInt();
488   E->setValueKind(static_cast<ExprValueKind>(Record.readInt()));
489   E->setObjectKind(static_cast<ExprObjectKind>(Record.readInt()));
490   assert(Record.getIdx() == NumExprFields &&
491          "Incorrect expression field count");
492 }
493 
494 void ASTStmtReader::VisitPredefinedExpr(PredefinedExpr *E) {
495   VisitExpr(E);
496   E->setLocation(ReadSourceLocation());
497   E->Type = (PredefinedExpr::IdentType)Record.readInt();
498   E->FnName = cast_or_null<StringLiteral>(Record.readSubExpr());
499 }
500 
501 void ASTStmtReader::VisitDeclRefExpr(DeclRefExpr *E) {
502   VisitExpr(E);
503 
504   E->DeclRefExprBits.HasQualifier = Record.readInt();
505   E->DeclRefExprBits.HasFoundDecl = Record.readInt();
506   E->DeclRefExprBits.HasTemplateKWAndArgsInfo = Record.readInt();
507   E->DeclRefExprBits.HadMultipleCandidates = Record.readInt();
508   E->DeclRefExprBits.RefersToEnclosingVariableOrCapture = Record.readInt();
509   unsigned NumTemplateArgs = 0;
510   if (E->hasTemplateKWAndArgsInfo())
511     NumTemplateArgs = Record.readInt();
512 
513   if (E->hasQualifier())
514     new (E->getTrailingObjects<NestedNameSpecifierLoc>())
515         NestedNameSpecifierLoc(Record.readNestedNameSpecifierLoc());
516 
517   if (E->hasFoundDecl())
518     *E->getTrailingObjects<NamedDecl *>() = ReadDeclAs<NamedDecl>();
519 
520   if (E->hasTemplateKWAndArgsInfo())
521     ReadTemplateKWAndArgsInfo(
522         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
523         E->getTrailingObjects<TemplateArgumentLoc>(), NumTemplateArgs);
524 
525   E->setDecl(ReadDeclAs<ValueDecl>());
526   E->setLocation(ReadSourceLocation());
527   ReadDeclarationNameLoc(E->DNLoc, E->getDecl()->getDeclName());
528 }
529 
530 void ASTStmtReader::VisitIntegerLiteral(IntegerLiteral *E) {
531   VisitExpr(E);
532   E->setLocation(ReadSourceLocation());
533   E->setValue(Record.getContext(), Record.readAPInt());
534 }
535 
536 void ASTStmtReader::VisitFixedPointLiteral(FixedPointLiteral *E) {
537   VisitExpr(E);
538   E->setLocation(ReadSourceLocation());
539   E->setValue(Record.getContext(), Record.readAPInt());
540 }
541 
542 void ASTStmtReader::VisitFloatingLiteral(FloatingLiteral *E) {
543   VisitExpr(E);
544   E->setRawSemantics(static_cast<Stmt::APFloatSemantics>(Record.readInt()));
545   E->setExact(Record.readInt());
546   E->setValue(Record.getContext(), Record.readAPFloat(E->getSemantics()));
547   E->setLocation(ReadSourceLocation());
548 }
549 
550 void ASTStmtReader::VisitImaginaryLiteral(ImaginaryLiteral *E) {
551   VisitExpr(E);
552   E->setSubExpr(Record.readSubExpr());
553 }
554 
555 void ASTStmtReader::VisitStringLiteral(StringLiteral *E) {
556   VisitExpr(E);
557   unsigned Len = Record.readInt();
558   assert(Record.peekInt() == E->getNumConcatenated() &&
559          "Wrong number of concatenated tokens!");
560   Record.skipInts(1);
561   auto kind = static_cast<StringLiteral::StringKind>(Record.readInt());
562   bool isPascal = Record.readInt();
563 
564   // Read string data
565   auto B = &Record.peekInt();
566   SmallString<16> Str(B, B + Len);
567   E->setString(Record.getContext(), Str, kind, isPascal);
568   Record.skipInts(Len);
569 
570   // Read source locations
571   for (unsigned I = 0, N = E->getNumConcatenated(); I != N; ++I)
572     E->setStrTokenLoc(I, ReadSourceLocation());
573 }
574 
575 void ASTStmtReader::VisitCharacterLiteral(CharacterLiteral *E) {
576   VisitExpr(E);
577   E->setValue(Record.readInt());
578   E->setLocation(ReadSourceLocation());
579   E->setKind(static_cast<CharacterLiteral::CharacterKind>(Record.readInt()));
580 }
581 
582 void ASTStmtReader::VisitParenExpr(ParenExpr *E) {
583   VisitExpr(E);
584   E->setLParen(ReadSourceLocation());
585   E->setRParen(ReadSourceLocation());
586   E->setSubExpr(Record.readSubExpr());
587 }
588 
589 void ASTStmtReader::VisitParenListExpr(ParenListExpr *E) {
590   VisitExpr(E);
591   unsigned NumExprs = Record.readInt();
592   E->Exprs = new (Record.getContext()) Stmt*[NumExprs];
593   for (unsigned i = 0; i != NumExprs; ++i)
594     E->Exprs[i] = Record.readSubStmt();
595   E->NumExprs = NumExprs;
596   E->LParenLoc = ReadSourceLocation();
597   E->RParenLoc = ReadSourceLocation();
598 }
599 
600 void ASTStmtReader::VisitUnaryOperator(UnaryOperator *E) {
601   VisitExpr(E);
602   E->setSubExpr(Record.readSubExpr());
603   E->setOpcode((UnaryOperator::Opcode)Record.readInt());
604   E->setOperatorLoc(ReadSourceLocation());
605   E->setCanOverflow(Record.readInt());
606 }
607 
608 void ASTStmtReader::VisitOffsetOfExpr(OffsetOfExpr *E) {
609   VisitExpr(E);
610   assert(E->getNumComponents() == Record.peekInt());
611   Record.skipInts(1);
612   assert(E->getNumExpressions() == Record.peekInt());
613   Record.skipInts(1);
614   E->setOperatorLoc(ReadSourceLocation());
615   E->setRParenLoc(ReadSourceLocation());
616   E->setTypeSourceInfo(GetTypeSourceInfo());
617   for (unsigned I = 0, N = E->getNumComponents(); I != N; ++I) {
618     auto Kind = static_cast<OffsetOfNode::Kind>(Record.readInt());
619     SourceLocation Start = ReadSourceLocation();
620     SourceLocation End = ReadSourceLocation();
621     switch (Kind) {
622     case OffsetOfNode::Array:
623       E->setComponent(I, OffsetOfNode(Start, Record.readInt(), End));
624       break;
625 
626     case OffsetOfNode::Field:
627       E->setComponent(
628           I, OffsetOfNode(Start, ReadDeclAs<FieldDecl>(), End));
629       break;
630 
631     case OffsetOfNode::Identifier:
632       E->setComponent(
633           I,
634           OffsetOfNode(Start, Record.getIdentifierInfo(), End));
635       break;
636 
637     case OffsetOfNode::Base: {
638       auto *Base = new (Record.getContext()) CXXBaseSpecifier();
639       *Base = Record.readCXXBaseSpecifier();
640       E->setComponent(I, OffsetOfNode(Base));
641       break;
642     }
643     }
644   }
645 
646   for (unsigned I = 0, N = E->getNumExpressions(); I != N; ++I)
647     E->setIndexExpr(I, Record.readSubExpr());
648 }
649 
650 void ASTStmtReader::VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr *E) {
651   VisitExpr(E);
652   E->setKind(static_cast<UnaryExprOrTypeTrait>(Record.readInt()));
653   if (Record.peekInt() == 0) {
654     E->setArgument(Record.readSubExpr());
655     Record.skipInts(1);
656   } else {
657     E->setArgument(GetTypeSourceInfo());
658   }
659   E->setOperatorLoc(ReadSourceLocation());
660   E->setRParenLoc(ReadSourceLocation());
661 }
662 
663 void ASTStmtReader::VisitArraySubscriptExpr(ArraySubscriptExpr *E) {
664   VisitExpr(E);
665   E->setLHS(Record.readSubExpr());
666   E->setRHS(Record.readSubExpr());
667   E->setRBracketLoc(ReadSourceLocation());
668 }
669 
670 void ASTStmtReader::VisitOMPArraySectionExpr(OMPArraySectionExpr *E) {
671   VisitExpr(E);
672   E->setBase(Record.readSubExpr());
673   E->setLowerBound(Record.readSubExpr());
674   E->setLength(Record.readSubExpr());
675   E->setColonLoc(ReadSourceLocation());
676   E->setRBracketLoc(ReadSourceLocation());
677 }
678 
679 void ASTStmtReader::VisitCallExpr(CallExpr *E) {
680   VisitExpr(E);
681   E->setNumArgs(Record.getContext(), Record.readInt());
682   E->setRParenLoc(ReadSourceLocation());
683   E->setCallee(Record.readSubExpr());
684   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
685     E->setArg(I, Record.readSubExpr());
686 }
687 
688 void ASTStmtReader::VisitCXXMemberCallExpr(CXXMemberCallExpr *E) {
689   VisitCallExpr(E);
690 }
691 
692 void ASTStmtReader::VisitMemberExpr(MemberExpr *E) {
693   // Don't call VisitExpr, this is fully initialized at creation.
694   assert(E->getStmtClass() == Stmt::MemberExprClass &&
695          "It's a subclass, we must advance Idx!");
696 }
697 
698 void ASTStmtReader::VisitObjCIsaExpr(ObjCIsaExpr *E) {
699   VisitExpr(E);
700   E->setBase(Record.readSubExpr());
701   E->setIsaMemberLoc(ReadSourceLocation());
702   E->setOpLoc(ReadSourceLocation());
703   E->setArrow(Record.readInt());
704 }
705 
706 void ASTStmtReader::
707 VisitObjCIndirectCopyRestoreExpr(ObjCIndirectCopyRestoreExpr *E) {
708   VisitExpr(E);
709   E->Operand = Record.readSubExpr();
710   E->setShouldCopy(Record.readInt());
711 }
712 
713 void ASTStmtReader::VisitObjCBridgedCastExpr(ObjCBridgedCastExpr *E) {
714   VisitExplicitCastExpr(E);
715   E->LParenLoc = ReadSourceLocation();
716   E->BridgeKeywordLoc = ReadSourceLocation();
717   E->Kind = Record.readInt();
718 }
719 
720 void ASTStmtReader::VisitCastExpr(CastExpr *E) {
721   VisitExpr(E);
722   unsigned NumBaseSpecs = Record.readInt();
723   assert(NumBaseSpecs == E->path_size());
724   E->setSubExpr(Record.readSubExpr());
725   E->setCastKind((CastKind)Record.readInt());
726   CastExpr::path_iterator BaseI = E->path_begin();
727   while (NumBaseSpecs--) {
728     auto *BaseSpec = new (Record.getContext()) CXXBaseSpecifier;
729     *BaseSpec = Record.readCXXBaseSpecifier();
730     *BaseI++ = BaseSpec;
731   }
732 }
733 
734 void ASTStmtReader::VisitBinaryOperator(BinaryOperator *E) {
735   VisitExpr(E);
736   E->setLHS(Record.readSubExpr());
737   E->setRHS(Record.readSubExpr());
738   E->setOpcode((BinaryOperator::Opcode)Record.readInt());
739   E->setOperatorLoc(ReadSourceLocation());
740   E->setFPFeatures(FPOptions(Record.readInt()));
741 }
742 
743 void ASTStmtReader::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
744   VisitBinaryOperator(E);
745   E->setComputationLHSType(Record.readType());
746   E->setComputationResultType(Record.readType());
747 }
748 
749 void ASTStmtReader::VisitConditionalOperator(ConditionalOperator *E) {
750   VisitExpr(E);
751   E->SubExprs[ConditionalOperator::COND] = Record.readSubExpr();
752   E->SubExprs[ConditionalOperator::LHS] = Record.readSubExpr();
753   E->SubExprs[ConditionalOperator::RHS] = Record.readSubExpr();
754   E->QuestionLoc = ReadSourceLocation();
755   E->ColonLoc = ReadSourceLocation();
756 }
757 
758 void
759 ASTStmtReader::VisitBinaryConditionalOperator(BinaryConditionalOperator *E) {
760   VisitExpr(E);
761   E->OpaqueValue = cast<OpaqueValueExpr>(Record.readSubExpr());
762   E->SubExprs[BinaryConditionalOperator::COMMON] = Record.readSubExpr();
763   E->SubExprs[BinaryConditionalOperator::COND] = Record.readSubExpr();
764   E->SubExprs[BinaryConditionalOperator::LHS] = Record.readSubExpr();
765   E->SubExprs[BinaryConditionalOperator::RHS] = Record.readSubExpr();
766   E->QuestionLoc = ReadSourceLocation();
767   E->ColonLoc = ReadSourceLocation();
768 }
769 
770 void ASTStmtReader::VisitImplicitCastExpr(ImplicitCastExpr *E) {
771   VisitCastExpr(E);
772   E->setIsPartOfExplicitCast(Record.readInt());
773 }
774 
775 void ASTStmtReader::VisitExplicitCastExpr(ExplicitCastExpr *E) {
776   VisitCastExpr(E);
777   E->setTypeInfoAsWritten(GetTypeSourceInfo());
778 }
779 
780 void ASTStmtReader::VisitCStyleCastExpr(CStyleCastExpr *E) {
781   VisitExplicitCastExpr(E);
782   E->setLParenLoc(ReadSourceLocation());
783   E->setRParenLoc(ReadSourceLocation());
784 }
785 
786 void ASTStmtReader::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) {
787   VisitExpr(E);
788   E->setLParenLoc(ReadSourceLocation());
789   E->setTypeSourceInfo(GetTypeSourceInfo());
790   E->setInitializer(Record.readSubExpr());
791   E->setFileScope(Record.readInt());
792 }
793 
794 void ASTStmtReader::VisitExtVectorElementExpr(ExtVectorElementExpr *E) {
795   VisitExpr(E);
796   E->setBase(Record.readSubExpr());
797   E->setAccessor(Record.getIdentifierInfo());
798   E->setAccessorLoc(ReadSourceLocation());
799 }
800 
801 void ASTStmtReader::VisitInitListExpr(InitListExpr *E) {
802   VisitExpr(E);
803   if (auto *SyntForm = cast_or_null<InitListExpr>(Record.readSubStmt()))
804     E->setSyntacticForm(SyntForm);
805   E->setLBraceLoc(ReadSourceLocation());
806   E->setRBraceLoc(ReadSourceLocation());
807   bool isArrayFiller = Record.readInt();
808   Expr *filler = nullptr;
809   if (isArrayFiller) {
810     filler = Record.readSubExpr();
811     E->ArrayFillerOrUnionFieldInit = filler;
812   } else
813     E->ArrayFillerOrUnionFieldInit = ReadDeclAs<FieldDecl>();
814   E->sawArrayRangeDesignator(Record.readInt());
815   unsigned NumInits = Record.readInt();
816   E->reserveInits(Record.getContext(), NumInits);
817   if (isArrayFiller) {
818     for (unsigned I = 0; I != NumInits; ++I) {
819       Expr *init = Record.readSubExpr();
820       E->updateInit(Record.getContext(), I, init ? init : filler);
821     }
822   } else {
823     for (unsigned I = 0; I != NumInits; ++I)
824       E->updateInit(Record.getContext(), I, Record.readSubExpr());
825   }
826 }
827 
828 void ASTStmtReader::VisitDesignatedInitExpr(DesignatedInitExpr *E) {
829   using Designator = DesignatedInitExpr::Designator;
830 
831   VisitExpr(E);
832   unsigned NumSubExprs = Record.readInt();
833   assert(NumSubExprs == E->getNumSubExprs() && "Wrong number of subexprs");
834   for (unsigned I = 0; I != NumSubExprs; ++I)
835     E->setSubExpr(I, Record.readSubExpr());
836   E->setEqualOrColonLoc(ReadSourceLocation());
837   E->setGNUSyntax(Record.readInt());
838 
839   SmallVector<Designator, 4> Designators;
840   while (Record.getIdx() < Record.size()) {
841     switch ((DesignatorTypes)Record.readInt()) {
842     case DESIG_FIELD_DECL: {
843       auto *Field = ReadDeclAs<FieldDecl>();
844       SourceLocation DotLoc = ReadSourceLocation();
845       SourceLocation FieldLoc = ReadSourceLocation();
846       Designators.push_back(Designator(Field->getIdentifier(), DotLoc,
847                                        FieldLoc));
848       Designators.back().setField(Field);
849       break;
850     }
851 
852     case DESIG_FIELD_NAME: {
853       const IdentifierInfo *Name = Record.getIdentifierInfo();
854       SourceLocation DotLoc = ReadSourceLocation();
855       SourceLocation FieldLoc = ReadSourceLocation();
856       Designators.push_back(Designator(Name, DotLoc, FieldLoc));
857       break;
858     }
859 
860     case DESIG_ARRAY: {
861       unsigned Index = Record.readInt();
862       SourceLocation LBracketLoc = ReadSourceLocation();
863       SourceLocation RBracketLoc = ReadSourceLocation();
864       Designators.push_back(Designator(Index, LBracketLoc, RBracketLoc));
865       break;
866     }
867 
868     case DESIG_ARRAY_RANGE: {
869       unsigned Index = Record.readInt();
870       SourceLocation LBracketLoc = ReadSourceLocation();
871       SourceLocation EllipsisLoc = ReadSourceLocation();
872       SourceLocation RBracketLoc = ReadSourceLocation();
873       Designators.push_back(Designator(Index, LBracketLoc, EllipsisLoc,
874                                        RBracketLoc));
875       break;
876     }
877     }
878   }
879   E->setDesignators(Record.getContext(),
880                     Designators.data(), Designators.size());
881 }
882 
883 void ASTStmtReader::VisitDesignatedInitUpdateExpr(DesignatedInitUpdateExpr *E) {
884   VisitExpr(E);
885   E->setBase(Record.readSubExpr());
886   E->setUpdater(Record.readSubExpr());
887 }
888 
889 void ASTStmtReader::VisitNoInitExpr(NoInitExpr *E) {
890   VisitExpr(E);
891 }
892 
893 void ASTStmtReader::VisitArrayInitLoopExpr(ArrayInitLoopExpr *E) {
894   VisitExpr(E);
895   E->SubExprs[0] = Record.readSubExpr();
896   E->SubExprs[1] = Record.readSubExpr();
897 }
898 
899 void ASTStmtReader::VisitArrayInitIndexExpr(ArrayInitIndexExpr *E) {
900   VisitExpr(E);
901 }
902 
903 void ASTStmtReader::VisitImplicitValueInitExpr(ImplicitValueInitExpr *E) {
904   VisitExpr(E);
905 }
906 
907 void ASTStmtReader::VisitVAArgExpr(VAArgExpr *E) {
908   VisitExpr(E);
909   E->setSubExpr(Record.readSubExpr());
910   E->setWrittenTypeInfo(GetTypeSourceInfo());
911   E->setBuiltinLoc(ReadSourceLocation());
912   E->setRParenLoc(ReadSourceLocation());
913   E->setIsMicrosoftABI(Record.readInt());
914 }
915 
916 void ASTStmtReader::VisitAddrLabelExpr(AddrLabelExpr *E) {
917   VisitExpr(E);
918   E->setAmpAmpLoc(ReadSourceLocation());
919   E->setLabelLoc(ReadSourceLocation());
920   E->setLabel(ReadDeclAs<LabelDecl>());
921 }
922 
923 void ASTStmtReader::VisitStmtExpr(StmtExpr *E) {
924   VisitExpr(E);
925   E->setLParenLoc(ReadSourceLocation());
926   E->setRParenLoc(ReadSourceLocation());
927   E->setSubStmt(cast_or_null<CompoundStmt>(Record.readSubStmt()));
928 }
929 
930 void ASTStmtReader::VisitChooseExpr(ChooseExpr *E) {
931   VisitExpr(E);
932   E->setCond(Record.readSubExpr());
933   E->setLHS(Record.readSubExpr());
934   E->setRHS(Record.readSubExpr());
935   E->setBuiltinLoc(ReadSourceLocation());
936   E->setRParenLoc(ReadSourceLocation());
937   E->setIsConditionTrue(Record.readInt());
938 }
939 
940 void ASTStmtReader::VisitGNUNullExpr(GNUNullExpr *E) {
941   VisitExpr(E);
942   E->setTokenLocation(ReadSourceLocation());
943 }
944 
945 void ASTStmtReader::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
946   VisitExpr(E);
947   SmallVector<Expr *, 16> Exprs;
948   unsigned NumExprs = Record.readInt();
949   while (NumExprs--)
950     Exprs.push_back(Record.readSubExpr());
951   E->setExprs(Record.getContext(), Exprs);
952   E->setBuiltinLoc(ReadSourceLocation());
953   E->setRParenLoc(ReadSourceLocation());
954 }
955 
956 void ASTStmtReader::VisitConvertVectorExpr(ConvertVectorExpr *E) {
957   VisitExpr(E);
958   E->BuiltinLoc = ReadSourceLocation();
959   E->RParenLoc = ReadSourceLocation();
960   E->TInfo = GetTypeSourceInfo();
961   E->SrcExpr = Record.readSubExpr();
962 }
963 
964 void ASTStmtReader::VisitBlockExpr(BlockExpr *E) {
965   VisitExpr(E);
966   E->setBlockDecl(ReadDeclAs<BlockDecl>());
967 }
968 
969 void ASTStmtReader::VisitGenericSelectionExpr(GenericSelectionExpr *E) {
970   VisitExpr(E);
971   E->NumAssocs = Record.readInt();
972   E->AssocTypes = new (Record.getContext()) TypeSourceInfo*[E->NumAssocs];
973   E->SubExprs =
974    new(Record.getContext()) Stmt*[GenericSelectionExpr::END_EXPR+E->NumAssocs];
975 
976   E->SubExprs[GenericSelectionExpr::CONTROLLING] = Record.readSubExpr();
977   for (unsigned I = 0, N = E->getNumAssocs(); I != N; ++I) {
978     E->AssocTypes[I] = GetTypeSourceInfo();
979     E->SubExprs[GenericSelectionExpr::END_EXPR+I] = Record.readSubExpr();
980   }
981   E->ResultIndex = Record.readInt();
982 
983   E->GenericLoc = ReadSourceLocation();
984   E->DefaultLoc = ReadSourceLocation();
985   E->RParenLoc = ReadSourceLocation();
986 }
987 
988 void ASTStmtReader::VisitPseudoObjectExpr(PseudoObjectExpr *E) {
989   VisitExpr(E);
990   unsigned numSemanticExprs = Record.readInt();
991   assert(numSemanticExprs + 1 == E->PseudoObjectExprBits.NumSubExprs);
992   E->PseudoObjectExprBits.ResultIndex = Record.readInt();
993 
994   // Read the syntactic expression.
995   E->getSubExprsBuffer()[0] = Record.readSubExpr();
996 
997   // Read all the semantic expressions.
998   for (unsigned i = 0; i != numSemanticExprs; ++i) {
999     Expr *subExpr = Record.readSubExpr();
1000     E->getSubExprsBuffer()[i+1] = subExpr;
1001   }
1002 }
1003 
1004 void ASTStmtReader::VisitAtomicExpr(AtomicExpr *E) {
1005   VisitExpr(E);
1006   E->Op = AtomicExpr::AtomicOp(Record.readInt());
1007   E->NumSubExprs = AtomicExpr::getNumSubExprs(E->Op);
1008   for (unsigned I = 0; I != E->NumSubExprs; ++I)
1009     E->SubExprs[I] = Record.readSubExpr();
1010   E->BuiltinLoc = ReadSourceLocation();
1011   E->RParenLoc = ReadSourceLocation();
1012 }
1013 
1014 //===----------------------------------------------------------------------===//
1015 // Objective-C Expressions and Statements
1016 
1017 void ASTStmtReader::VisitObjCStringLiteral(ObjCStringLiteral *E) {
1018   VisitExpr(E);
1019   E->setString(cast<StringLiteral>(Record.readSubStmt()));
1020   E->setAtLoc(ReadSourceLocation());
1021 }
1022 
1023 void ASTStmtReader::VisitObjCBoxedExpr(ObjCBoxedExpr *E) {
1024   VisitExpr(E);
1025   // could be one of several IntegerLiteral, FloatLiteral, etc.
1026   E->SubExpr = Record.readSubStmt();
1027   E->BoxingMethod = ReadDeclAs<ObjCMethodDecl>();
1028   E->Range = ReadSourceRange();
1029 }
1030 
1031 void ASTStmtReader::VisitObjCArrayLiteral(ObjCArrayLiteral *E) {
1032   VisitExpr(E);
1033   unsigned NumElements = Record.readInt();
1034   assert(NumElements == E->getNumElements() && "Wrong number of elements");
1035   Expr **Elements = E->getElements();
1036   for (unsigned I = 0, N = NumElements; I != N; ++I)
1037     Elements[I] = Record.readSubExpr();
1038   E->ArrayWithObjectsMethod = ReadDeclAs<ObjCMethodDecl>();
1039   E->Range = ReadSourceRange();
1040 }
1041 
1042 void ASTStmtReader::VisitObjCDictionaryLiteral(ObjCDictionaryLiteral *E) {
1043   VisitExpr(E);
1044   unsigned NumElements = Record.readInt();
1045   assert(NumElements == E->getNumElements() && "Wrong number of elements");
1046   bool HasPackExpansions = Record.readInt();
1047   assert(HasPackExpansions == E->HasPackExpansions &&"Pack expansion mismatch");
1048   auto *KeyValues =
1049       E->getTrailingObjects<ObjCDictionaryLiteral::KeyValuePair>();
1050   auto *Expansions =
1051       E->getTrailingObjects<ObjCDictionaryLiteral::ExpansionData>();
1052   for (unsigned I = 0; I != NumElements; ++I) {
1053     KeyValues[I].Key = Record.readSubExpr();
1054     KeyValues[I].Value = Record.readSubExpr();
1055     if (HasPackExpansions) {
1056       Expansions[I].EllipsisLoc = ReadSourceLocation();
1057       Expansions[I].NumExpansionsPlusOne = Record.readInt();
1058     }
1059   }
1060   E->DictWithObjectsMethod = ReadDeclAs<ObjCMethodDecl>();
1061   E->Range = ReadSourceRange();
1062 }
1063 
1064 void ASTStmtReader::VisitObjCEncodeExpr(ObjCEncodeExpr *E) {
1065   VisitExpr(E);
1066   E->setEncodedTypeSourceInfo(GetTypeSourceInfo());
1067   E->setAtLoc(ReadSourceLocation());
1068   E->setRParenLoc(ReadSourceLocation());
1069 }
1070 
1071 void ASTStmtReader::VisitObjCSelectorExpr(ObjCSelectorExpr *E) {
1072   VisitExpr(E);
1073   E->setSelector(Record.readSelector());
1074   E->setAtLoc(ReadSourceLocation());
1075   E->setRParenLoc(ReadSourceLocation());
1076 }
1077 
1078 void ASTStmtReader::VisitObjCProtocolExpr(ObjCProtocolExpr *E) {
1079   VisitExpr(E);
1080   E->setProtocol(ReadDeclAs<ObjCProtocolDecl>());
1081   E->setAtLoc(ReadSourceLocation());
1082   E->ProtoLoc = ReadSourceLocation();
1083   E->setRParenLoc(ReadSourceLocation());
1084 }
1085 
1086 void ASTStmtReader::VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
1087   VisitExpr(E);
1088   E->setDecl(ReadDeclAs<ObjCIvarDecl>());
1089   E->setLocation(ReadSourceLocation());
1090   E->setOpLoc(ReadSourceLocation());
1091   E->setBase(Record.readSubExpr());
1092   E->setIsArrow(Record.readInt());
1093   E->setIsFreeIvar(Record.readInt());
1094 }
1095 
1096 void ASTStmtReader::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E) {
1097   VisitExpr(E);
1098   unsigned MethodRefFlags = Record.readInt();
1099   bool Implicit = Record.readInt() != 0;
1100   if (Implicit) {
1101     auto *Getter = ReadDeclAs<ObjCMethodDecl>();
1102     auto *Setter = ReadDeclAs<ObjCMethodDecl>();
1103     E->setImplicitProperty(Getter, Setter, MethodRefFlags);
1104   } else {
1105     E->setExplicitProperty(ReadDeclAs<ObjCPropertyDecl>(), MethodRefFlags);
1106   }
1107   E->setLocation(ReadSourceLocation());
1108   E->setReceiverLocation(ReadSourceLocation());
1109   switch (Record.readInt()) {
1110   case 0:
1111     E->setBase(Record.readSubExpr());
1112     break;
1113   case 1:
1114     E->setSuperReceiver(Record.readType());
1115     break;
1116   case 2:
1117     E->setClassReceiver(ReadDeclAs<ObjCInterfaceDecl>());
1118     break;
1119   }
1120 }
1121 
1122 void ASTStmtReader::VisitObjCSubscriptRefExpr(ObjCSubscriptRefExpr *E) {
1123   VisitExpr(E);
1124   E->setRBracket(ReadSourceLocation());
1125   E->setBaseExpr(Record.readSubExpr());
1126   E->setKeyExpr(Record.readSubExpr());
1127   E->GetAtIndexMethodDecl = ReadDeclAs<ObjCMethodDecl>();
1128   E->SetAtIndexMethodDecl = ReadDeclAs<ObjCMethodDecl>();
1129 }
1130 
1131 void ASTStmtReader::VisitObjCMessageExpr(ObjCMessageExpr *E) {
1132   VisitExpr(E);
1133   assert(Record.peekInt() == E->getNumArgs());
1134   Record.skipInts(1);
1135   unsigned NumStoredSelLocs = Record.readInt();
1136   E->SelLocsKind = Record.readInt();
1137   E->setDelegateInitCall(Record.readInt());
1138   E->IsImplicit = Record.readInt();
1139   auto Kind = static_cast<ObjCMessageExpr::ReceiverKind>(Record.readInt());
1140   switch (Kind) {
1141   case ObjCMessageExpr::Instance:
1142     E->setInstanceReceiver(Record.readSubExpr());
1143     break;
1144 
1145   case ObjCMessageExpr::Class:
1146     E->setClassReceiver(GetTypeSourceInfo());
1147     break;
1148 
1149   case ObjCMessageExpr::SuperClass:
1150   case ObjCMessageExpr::SuperInstance: {
1151     QualType T = Record.readType();
1152     SourceLocation SuperLoc = ReadSourceLocation();
1153     E->setSuper(SuperLoc, T, Kind == ObjCMessageExpr::SuperInstance);
1154     break;
1155   }
1156   }
1157 
1158   assert(Kind == E->getReceiverKind());
1159 
1160   if (Record.readInt())
1161     E->setMethodDecl(ReadDeclAs<ObjCMethodDecl>());
1162   else
1163     E->setSelector(Record.readSelector());
1164 
1165   E->LBracLoc = ReadSourceLocation();
1166   E->RBracLoc = ReadSourceLocation();
1167 
1168   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1169     E->setArg(I, Record.readSubExpr());
1170 
1171   SourceLocation *Locs = E->getStoredSelLocs();
1172   for (unsigned I = 0; I != NumStoredSelLocs; ++I)
1173     Locs[I] = ReadSourceLocation();
1174 }
1175 
1176 void ASTStmtReader::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
1177   VisitStmt(S);
1178   S->setElement(Record.readSubStmt());
1179   S->setCollection(Record.readSubExpr());
1180   S->setBody(Record.readSubStmt());
1181   S->setForLoc(ReadSourceLocation());
1182   S->setRParenLoc(ReadSourceLocation());
1183 }
1184 
1185 void ASTStmtReader::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
1186   VisitStmt(S);
1187   S->setCatchBody(Record.readSubStmt());
1188   S->setCatchParamDecl(ReadDeclAs<VarDecl>());
1189   S->setAtCatchLoc(ReadSourceLocation());
1190   S->setRParenLoc(ReadSourceLocation());
1191 }
1192 
1193 void ASTStmtReader::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
1194   VisitStmt(S);
1195   S->setFinallyBody(Record.readSubStmt());
1196   S->setAtFinallyLoc(ReadSourceLocation());
1197 }
1198 
1199 void ASTStmtReader::VisitObjCAutoreleasePoolStmt(ObjCAutoreleasePoolStmt *S) {
1200   VisitStmt(S);
1201   S->setSubStmt(Record.readSubStmt());
1202   S->setAtLoc(ReadSourceLocation());
1203 }
1204 
1205 void ASTStmtReader::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
1206   VisitStmt(S);
1207   assert(Record.peekInt() == S->getNumCatchStmts());
1208   Record.skipInts(1);
1209   bool HasFinally = Record.readInt();
1210   S->setTryBody(Record.readSubStmt());
1211   for (unsigned I = 0, N = S->getNumCatchStmts(); I != N; ++I)
1212     S->setCatchStmt(I, cast_or_null<ObjCAtCatchStmt>(Record.readSubStmt()));
1213 
1214   if (HasFinally)
1215     S->setFinallyStmt(Record.readSubStmt());
1216   S->setAtTryLoc(ReadSourceLocation());
1217 }
1218 
1219 void ASTStmtReader::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
1220   VisitStmt(S);
1221   S->setSynchExpr(Record.readSubStmt());
1222   S->setSynchBody(Record.readSubStmt());
1223   S->setAtSynchronizedLoc(ReadSourceLocation());
1224 }
1225 
1226 void ASTStmtReader::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
1227   VisitStmt(S);
1228   S->setThrowExpr(Record.readSubStmt());
1229   S->setThrowLoc(ReadSourceLocation());
1230 }
1231 
1232 void ASTStmtReader::VisitObjCBoolLiteralExpr(ObjCBoolLiteralExpr *E) {
1233   VisitExpr(E);
1234   E->setValue(Record.readInt());
1235   E->setLocation(ReadSourceLocation());
1236 }
1237 
1238 void ASTStmtReader::VisitObjCAvailabilityCheckExpr(ObjCAvailabilityCheckExpr *E) {
1239   VisitExpr(E);
1240   SourceRange R = Record.readSourceRange();
1241   E->AtLoc = R.getBegin();
1242   E->RParen = R.getEnd();
1243   E->VersionToCheck = Record.readVersionTuple();
1244 }
1245 
1246 //===----------------------------------------------------------------------===//
1247 // C++ Expressions and Statements
1248 //===----------------------------------------------------------------------===//
1249 
1250 void ASTStmtReader::VisitCXXCatchStmt(CXXCatchStmt *S) {
1251   VisitStmt(S);
1252   S->CatchLoc = ReadSourceLocation();
1253   S->ExceptionDecl = ReadDeclAs<VarDecl>();
1254   S->HandlerBlock = Record.readSubStmt();
1255 }
1256 
1257 void ASTStmtReader::VisitCXXTryStmt(CXXTryStmt *S) {
1258   VisitStmt(S);
1259   assert(Record.peekInt() == S->getNumHandlers() && "NumStmtFields is wrong ?");
1260   Record.skipInts(1);
1261   S->TryLoc = ReadSourceLocation();
1262   S->getStmts()[0] = Record.readSubStmt();
1263   for (unsigned i = 0, e = S->getNumHandlers(); i != e; ++i)
1264     S->getStmts()[i + 1] = Record.readSubStmt();
1265 }
1266 
1267 void ASTStmtReader::VisitCXXForRangeStmt(CXXForRangeStmt *S) {
1268   VisitStmt(S);
1269   S->ForLoc = ReadSourceLocation();
1270   S->CoawaitLoc = ReadSourceLocation();
1271   S->ColonLoc = ReadSourceLocation();
1272   S->RParenLoc = ReadSourceLocation();
1273   S->setInit(Record.readSubStmt());
1274   S->setRangeStmt(Record.readSubStmt());
1275   S->setBeginStmt(Record.readSubStmt());
1276   S->setEndStmt(Record.readSubStmt());
1277   S->setCond(Record.readSubExpr());
1278   S->setInc(Record.readSubExpr());
1279   S->setLoopVarStmt(Record.readSubStmt());
1280   S->setBody(Record.readSubStmt());
1281 }
1282 
1283 void ASTStmtReader::VisitMSDependentExistsStmt(MSDependentExistsStmt *S) {
1284   VisitStmt(S);
1285   S->KeywordLoc = ReadSourceLocation();
1286   S->IsIfExists = Record.readInt();
1287   S->QualifierLoc = Record.readNestedNameSpecifierLoc();
1288   ReadDeclarationNameInfo(S->NameInfo);
1289   S->SubStmt = Record.readSubStmt();
1290 }
1291 
1292 void ASTStmtReader::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
1293   VisitCallExpr(E);
1294   E->Operator = (OverloadedOperatorKind)Record.readInt();
1295   E->Range = Record.readSourceRange();
1296   E->setFPFeatures(FPOptions(Record.readInt()));
1297 }
1298 
1299 void ASTStmtReader::VisitCXXConstructExpr(CXXConstructExpr *E) {
1300   VisitExpr(E);
1301   E->NumArgs = Record.readInt();
1302   if (E->NumArgs)
1303     E->Args = new (Record.getContext()) Stmt*[E->NumArgs];
1304   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1305     E->setArg(I, Record.readSubExpr());
1306   E->setConstructor(ReadDeclAs<CXXConstructorDecl>());
1307   E->setLocation(ReadSourceLocation());
1308   E->setElidable(Record.readInt());
1309   E->setHadMultipleCandidates(Record.readInt());
1310   E->setListInitialization(Record.readInt());
1311   E->setStdInitListInitialization(Record.readInt());
1312   E->setRequiresZeroInitialization(Record.readInt());
1313   E->setConstructionKind((CXXConstructExpr::ConstructionKind)Record.readInt());
1314   E->ParenOrBraceRange = ReadSourceRange();
1315 }
1316 
1317 void ASTStmtReader::VisitCXXInheritedCtorInitExpr(CXXInheritedCtorInitExpr *E) {
1318   VisitExpr(E);
1319   E->Constructor = ReadDeclAs<CXXConstructorDecl>();
1320   E->Loc = ReadSourceLocation();
1321   E->ConstructsVirtualBase = Record.readInt();
1322   E->InheritedFromVirtualBase = Record.readInt();
1323 }
1324 
1325 void ASTStmtReader::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E) {
1326   VisitCXXConstructExpr(E);
1327   E->Type = GetTypeSourceInfo();
1328 }
1329 
1330 void ASTStmtReader::VisitLambdaExpr(LambdaExpr *E) {
1331   VisitExpr(E);
1332   unsigned NumCaptures = Record.readInt();
1333   assert(NumCaptures == E->NumCaptures);(void)NumCaptures;
1334   E->IntroducerRange = ReadSourceRange();
1335   E->CaptureDefault = static_cast<LambdaCaptureDefault>(Record.readInt());
1336   E->CaptureDefaultLoc = ReadSourceLocation();
1337   E->ExplicitParams = Record.readInt();
1338   E->ExplicitResultType = Record.readInt();
1339   E->ClosingBrace = ReadSourceLocation();
1340 
1341   // Read capture initializers.
1342   for (LambdaExpr::capture_init_iterator C = E->capture_init_begin(),
1343                                       CEnd = E->capture_init_end();
1344        C != CEnd; ++C)
1345     *C = Record.readSubExpr();
1346 }
1347 
1348 void
1349 ASTStmtReader::VisitCXXStdInitializerListExpr(CXXStdInitializerListExpr *E) {
1350   VisitExpr(E);
1351   E->SubExpr = Record.readSubExpr();
1352 }
1353 
1354 void ASTStmtReader::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
1355   VisitExplicitCastExpr(E);
1356   SourceRange R = ReadSourceRange();
1357   E->Loc = R.getBegin();
1358   E->RParenLoc = R.getEnd();
1359   R = ReadSourceRange();
1360   E->AngleBrackets = R;
1361 }
1362 
1363 void ASTStmtReader::VisitCXXStaticCastExpr(CXXStaticCastExpr *E) {
1364   return VisitCXXNamedCastExpr(E);
1365 }
1366 
1367 void ASTStmtReader::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E) {
1368   return VisitCXXNamedCastExpr(E);
1369 }
1370 
1371 void ASTStmtReader::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E) {
1372   return VisitCXXNamedCastExpr(E);
1373 }
1374 
1375 void ASTStmtReader::VisitCXXConstCastExpr(CXXConstCastExpr *E) {
1376   return VisitCXXNamedCastExpr(E);
1377 }
1378 
1379 void ASTStmtReader::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E) {
1380   VisitExplicitCastExpr(E);
1381   E->setLParenLoc(ReadSourceLocation());
1382   E->setRParenLoc(ReadSourceLocation());
1383 }
1384 
1385 void ASTStmtReader::VisitUserDefinedLiteral(UserDefinedLiteral *E) {
1386   VisitCallExpr(E);
1387   E->UDSuffixLoc = ReadSourceLocation();
1388 }
1389 
1390 void ASTStmtReader::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
1391   VisitExpr(E);
1392   E->setValue(Record.readInt());
1393   E->setLocation(ReadSourceLocation());
1394 }
1395 
1396 void ASTStmtReader::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E) {
1397   VisitExpr(E);
1398   E->setLocation(ReadSourceLocation());
1399 }
1400 
1401 void ASTStmtReader::VisitCXXTypeidExpr(CXXTypeidExpr *E) {
1402   VisitExpr(E);
1403   E->setSourceRange(ReadSourceRange());
1404   if (E->isTypeOperand()) { // typeid(int)
1405     E->setTypeOperandSourceInfo(
1406         GetTypeSourceInfo());
1407     return;
1408   }
1409 
1410   // typeid(42+2)
1411   E->setExprOperand(Record.readSubExpr());
1412 }
1413 
1414 void ASTStmtReader::VisitCXXThisExpr(CXXThisExpr *E) {
1415   VisitExpr(E);
1416   E->setLocation(ReadSourceLocation());
1417   E->setImplicit(Record.readInt());
1418 }
1419 
1420 void ASTStmtReader::VisitCXXThrowExpr(CXXThrowExpr *E) {
1421   VisitExpr(E);
1422   E->ThrowLoc = ReadSourceLocation();
1423   E->Op = Record.readSubExpr();
1424   E->IsThrownVariableInScope = Record.readInt();
1425 }
1426 
1427 void ASTStmtReader::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
1428   VisitExpr(E);
1429   E->Param = ReadDeclAs<ParmVarDecl>();
1430   E->Loc = ReadSourceLocation();
1431 }
1432 
1433 void ASTStmtReader::VisitCXXDefaultInitExpr(CXXDefaultInitExpr *E) {
1434   VisitExpr(E);
1435   E->Field = ReadDeclAs<FieldDecl>();
1436   E->Loc = ReadSourceLocation();
1437 }
1438 
1439 void ASTStmtReader::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
1440   VisitExpr(E);
1441   E->setTemporary(Record.readCXXTemporary());
1442   E->setSubExpr(Record.readSubExpr());
1443 }
1444 
1445 void ASTStmtReader::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E) {
1446   VisitExpr(E);
1447   E->TypeInfo = GetTypeSourceInfo();
1448   E->RParenLoc = ReadSourceLocation();
1449 }
1450 
1451 void ASTStmtReader::VisitCXXNewExpr(CXXNewExpr *E) {
1452   VisitExpr(E);
1453   E->GlobalNew = Record.readInt();
1454   bool isArray = Record.readInt();
1455   E->PassAlignment = Record.readInt();
1456   E->UsualArrayDeleteWantsSize = Record.readInt();
1457   unsigned NumPlacementArgs = Record.readInt();
1458   E->StoredInitializationStyle = Record.readInt();
1459   E->setOperatorNew(ReadDeclAs<FunctionDecl>());
1460   E->setOperatorDelete(ReadDeclAs<FunctionDecl>());
1461   E->AllocatedTypeInfo = GetTypeSourceInfo();
1462   E->TypeIdParens = ReadSourceRange();
1463   E->Range = ReadSourceRange();
1464   E->DirectInitRange = ReadSourceRange();
1465 
1466   E->AllocateArgsArray(Record.getContext(), isArray, NumPlacementArgs,
1467                        E->StoredInitializationStyle != 0);
1468 
1469   // Install all the subexpressions.
1470   for (CXXNewExpr::raw_arg_iterator I = E->raw_arg_begin(),e = E->raw_arg_end();
1471        I != e; ++I)
1472     *I = Record.readSubStmt();
1473 }
1474 
1475 void ASTStmtReader::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
1476   VisitExpr(E);
1477   E->GlobalDelete = Record.readInt();
1478   E->ArrayForm = Record.readInt();
1479   E->ArrayFormAsWritten = Record.readInt();
1480   E->UsualArrayDeleteWantsSize = Record.readInt();
1481   E->OperatorDelete = ReadDeclAs<FunctionDecl>();
1482   E->Argument = Record.readSubExpr();
1483   E->Loc = ReadSourceLocation();
1484 }
1485 
1486 void ASTStmtReader::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) {
1487   VisitExpr(E);
1488 
1489   E->Base = Record.readSubExpr();
1490   E->IsArrow = Record.readInt();
1491   E->OperatorLoc = ReadSourceLocation();
1492   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1493   E->ScopeType = GetTypeSourceInfo();
1494   E->ColonColonLoc = ReadSourceLocation();
1495   E->TildeLoc = ReadSourceLocation();
1496 
1497   IdentifierInfo *II = Record.getIdentifierInfo();
1498   if (II)
1499     E->setDestroyedType(II, ReadSourceLocation());
1500   else
1501     E->setDestroyedType(GetTypeSourceInfo());
1502 }
1503 
1504 void ASTStmtReader::VisitExprWithCleanups(ExprWithCleanups *E) {
1505   VisitExpr(E);
1506 
1507   unsigned NumObjects = Record.readInt();
1508   assert(NumObjects == E->getNumObjects());
1509   for (unsigned i = 0; i != NumObjects; ++i)
1510     E->getTrailingObjects<BlockDecl *>()[i] =
1511         ReadDeclAs<BlockDecl>();
1512 
1513   E->ExprWithCleanupsBits.CleanupsHaveSideEffects = Record.readInt();
1514   E->SubExpr = Record.readSubExpr();
1515 }
1516 
1517 void
1518 ASTStmtReader::VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E){
1519   VisitExpr(E);
1520 
1521   if (Record.readInt()) // HasTemplateKWAndArgsInfo
1522     ReadTemplateKWAndArgsInfo(
1523         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
1524         E->getTrailingObjects<TemplateArgumentLoc>(),
1525         /*NumTemplateArgs=*/Record.readInt());
1526 
1527   E->Base = Record.readSubExpr();
1528   E->BaseType = Record.readType();
1529   E->IsArrow = Record.readInt();
1530   E->OperatorLoc = ReadSourceLocation();
1531   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1532   E->FirstQualifierFoundInScope = ReadDeclAs<NamedDecl>();
1533   ReadDeclarationNameInfo(E->MemberNameInfo);
1534 }
1535 
1536 void
1537 ASTStmtReader::VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E) {
1538   VisitExpr(E);
1539 
1540   if (Record.readInt()) // HasTemplateKWAndArgsInfo
1541     ReadTemplateKWAndArgsInfo(
1542         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
1543         E->getTrailingObjects<TemplateArgumentLoc>(),
1544         /*NumTemplateArgs=*/Record.readInt());
1545 
1546   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1547   ReadDeclarationNameInfo(E->NameInfo);
1548 }
1549 
1550 void
1551 ASTStmtReader::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E) {
1552   VisitExpr(E);
1553   assert(Record.peekInt() == E->arg_size() &&
1554          "Read wrong record during creation ?");
1555   Record.skipInts(1);
1556   for (unsigned I = 0, N = E->arg_size(); I != N; ++I)
1557     E->setArg(I, Record.readSubExpr());
1558   E->Type = GetTypeSourceInfo();
1559   E->setLParenLoc(ReadSourceLocation());
1560   E->setRParenLoc(ReadSourceLocation());
1561 }
1562 
1563 void ASTStmtReader::VisitOverloadExpr(OverloadExpr *E) {
1564   VisitExpr(E);
1565 
1566   if (Record.readInt()) // HasTemplateKWAndArgsInfo
1567     ReadTemplateKWAndArgsInfo(*E->getTrailingASTTemplateKWAndArgsInfo(),
1568                               E->getTrailingTemplateArgumentLoc(),
1569                               /*NumTemplateArgs=*/Record.readInt());
1570 
1571   unsigned NumDecls = Record.readInt();
1572   UnresolvedSet<8> Decls;
1573   for (unsigned i = 0; i != NumDecls; ++i) {
1574     auto *D = ReadDeclAs<NamedDecl>();
1575     auto AS = (AccessSpecifier)Record.readInt();
1576     Decls.addDecl(D, AS);
1577   }
1578   E->initializeResults(Record.getContext(), Decls.begin(), Decls.end());
1579 
1580   ReadDeclarationNameInfo(E->NameInfo);
1581   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1582 }
1583 
1584 void ASTStmtReader::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E) {
1585   VisitOverloadExpr(E);
1586   E->IsArrow = Record.readInt();
1587   E->HasUnresolvedUsing = Record.readInt();
1588   E->Base = Record.readSubExpr();
1589   E->BaseType = Record.readType();
1590   E->OperatorLoc = ReadSourceLocation();
1591 }
1592 
1593 void ASTStmtReader::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E) {
1594   VisitOverloadExpr(E);
1595   E->RequiresADL = Record.readInt();
1596   E->Overloaded = Record.readInt();
1597   E->NamingClass = ReadDeclAs<CXXRecordDecl>();
1598 }
1599 
1600 void ASTStmtReader::VisitTypeTraitExpr(TypeTraitExpr *E) {
1601   VisitExpr(E);
1602   E->TypeTraitExprBits.NumArgs = Record.readInt();
1603   E->TypeTraitExprBits.Kind = Record.readInt();
1604   E->TypeTraitExprBits.Value = Record.readInt();
1605   SourceRange Range = ReadSourceRange();
1606   E->Loc = Range.getBegin();
1607   E->RParenLoc = Range.getEnd();
1608 
1609   auto **Args = E->getTrailingObjects<TypeSourceInfo *>();
1610   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1611     Args[I] = GetTypeSourceInfo();
1612 }
1613 
1614 void ASTStmtReader::VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E) {
1615   VisitExpr(E);
1616   E->ATT = (ArrayTypeTrait)Record.readInt();
1617   E->Value = (unsigned int)Record.readInt();
1618   SourceRange Range = ReadSourceRange();
1619   E->Loc = Range.getBegin();
1620   E->RParen = Range.getEnd();
1621   E->QueriedType = GetTypeSourceInfo();
1622   E->Dimension = Record.readSubExpr();
1623 }
1624 
1625 void ASTStmtReader::VisitExpressionTraitExpr(ExpressionTraitExpr *E) {
1626   VisitExpr(E);
1627   E->ET = (ExpressionTrait)Record.readInt();
1628   E->Value = (bool)Record.readInt();
1629   SourceRange Range = ReadSourceRange();
1630   E->QueriedExpression = Record.readSubExpr();
1631   E->Loc = Range.getBegin();
1632   E->RParen = Range.getEnd();
1633 }
1634 
1635 void ASTStmtReader::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) {
1636   VisitExpr(E);
1637   E->Value = (bool)Record.readInt();
1638   E->Range = ReadSourceRange();
1639   E->Operand = Record.readSubExpr();
1640 }
1641 
1642 void ASTStmtReader::VisitPackExpansionExpr(PackExpansionExpr *E) {
1643   VisitExpr(E);
1644   E->EllipsisLoc = ReadSourceLocation();
1645   E->NumExpansions = Record.readInt();
1646   E->Pattern = Record.readSubExpr();
1647 }
1648 
1649 void ASTStmtReader::VisitSizeOfPackExpr(SizeOfPackExpr *E) {
1650   VisitExpr(E);
1651   unsigned NumPartialArgs = Record.readInt();
1652   E->OperatorLoc = ReadSourceLocation();
1653   E->PackLoc = ReadSourceLocation();
1654   E->RParenLoc = ReadSourceLocation();
1655   E->Pack = Record.readDeclAs<NamedDecl>();
1656   if (E->isPartiallySubstituted()) {
1657     assert(E->Length == NumPartialArgs);
1658     for (auto *I = E->getTrailingObjects<TemplateArgument>(),
1659               *E = I + NumPartialArgs;
1660          I != E; ++I)
1661       new (I) TemplateArgument(Record.readTemplateArgument());
1662   } else if (!E->isValueDependent()) {
1663     E->Length = Record.readInt();
1664   }
1665 }
1666 
1667 void ASTStmtReader::VisitSubstNonTypeTemplateParmExpr(
1668                                               SubstNonTypeTemplateParmExpr *E) {
1669   VisitExpr(E);
1670   E->Param = ReadDeclAs<NonTypeTemplateParmDecl>();
1671   E->NameLoc = ReadSourceLocation();
1672   E->Replacement = Record.readSubExpr();
1673 }
1674 
1675 void ASTStmtReader::VisitSubstNonTypeTemplateParmPackExpr(
1676                                           SubstNonTypeTemplateParmPackExpr *E) {
1677   VisitExpr(E);
1678   E->Param = ReadDeclAs<NonTypeTemplateParmDecl>();
1679   TemplateArgument ArgPack = Record.readTemplateArgument();
1680   if (ArgPack.getKind() != TemplateArgument::Pack)
1681     return;
1682 
1683   E->Arguments = ArgPack.pack_begin();
1684   E->NumArguments = ArgPack.pack_size();
1685   E->NameLoc = ReadSourceLocation();
1686 }
1687 
1688 void ASTStmtReader::VisitFunctionParmPackExpr(FunctionParmPackExpr *E) {
1689   VisitExpr(E);
1690   E->NumParameters = Record.readInt();
1691   E->ParamPack = ReadDeclAs<ParmVarDecl>();
1692   E->NameLoc = ReadSourceLocation();
1693   auto **Parms = E->getTrailingObjects<ParmVarDecl *>();
1694   for (unsigned i = 0, n = E->NumParameters; i != n; ++i)
1695     Parms[i] = ReadDeclAs<ParmVarDecl>();
1696 }
1697 
1698 void ASTStmtReader::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E) {
1699   VisitExpr(E);
1700   E->State = Record.readSubExpr();
1701   auto *VD = ReadDeclAs<ValueDecl>();
1702   unsigned ManglingNumber = Record.readInt();
1703   E->setExtendingDecl(VD, ManglingNumber);
1704 }
1705 
1706 void ASTStmtReader::VisitCXXFoldExpr(CXXFoldExpr *E) {
1707   VisitExpr(E);
1708   E->LParenLoc = ReadSourceLocation();
1709   E->EllipsisLoc = ReadSourceLocation();
1710   E->RParenLoc = ReadSourceLocation();
1711   E->SubExprs[0] = Record.readSubExpr();
1712   E->SubExprs[1] = Record.readSubExpr();
1713   E->Opcode = (BinaryOperatorKind)Record.readInt();
1714 }
1715 
1716 void ASTStmtReader::VisitOpaqueValueExpr(OpaqueValueExpr *E) {
1717   VisitExpr(E);
1718   E->SourceExpr = Record.readSubExpr();
1719   E->Loc = ReadSourceLocation();
1720   E->setIsUnique(Record.readInt());
1721 }
1722 
1723 void ASTStmtReader::VisitTypoExpr(TypoExpr *E) {
1724   llvm_unreachable("Cannot read TypoExpr nodes");
1725 }
1726 
1727 //===----------------------------------------------------------------------===//
1728 // Microsoft Expressions and Statements
1729 //===----------------------------------------------------------------------===//
1730 void ASTStmtReader::VisitMSPropertyRefExpr(MSPropertyRefExpr *E) {
1731   VisitExpr(E);
1732   E->IsArrow = (Record.readInt() != 0);
1733   E->BaseExpr = Record.readSubExpr();
1734   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1735   E->MemberLoc = ReadSourceLocation();
1736   E->TheDecl = ReadDeclAs<MSPropertyDecl>();
1737 }
1738 
1739 void ASTStmtReader::VisitMSPropertySubscriptExpr(MSPropertySubscriptExpr *E) {
1740   VisitExpr(E);
1741   E->setBase(Record.readSubExpr());
1742   E->setIdx(Record.readSubExpr());
1743   E->setRBracketLoc(ReadSourceLocation());
1744 }
1745 
1746 void ASTStmtReader::VisitCXXUuidofExpr(CXXUuidofExpr *E) {
1747   VisitExpr(E);
1748   E->setSourceRange(ReadSourceRange());
1749   std::string UuidStr = ReadString();
1750   E->setUuidStr(StringRef(UuidStr).copy(Record.getContext()));
1751   if (E->isTypeOperand()) { // __uuidof(ComType)
1752     E->setTypeOperandSourceInfo(
1753         GetTypeSourceInfo());
1754     return;
1755   }
1756 
1757   // __uuidof(expr)
1758   E->setExprOperand(Record.readSubExpr());
1759 }
1760 
1761 void ASTStmtReader::VisitSEHLeaveStmt(SEHLeaveStmt *S) {
1762   VisitStmt(S);
1763   S->setLeaveLoc(ReadSourceLocation());
1764 }
1765 
1766 void ASTStmtReader::VisitSEHExceptStmt(SEHExceptStmt *S) {
1767   VisitStmt(S);
1768   S->Loc = ReadSourceLocation();
1769   S->Children[SEHExceptStmt::FILTER_EXPR] = Record.readSubStmt();
1770   S->Children[SEHExceptStmt::BLOCK] = Record.readSubStmt();
1771 }
1772 
1773 void ASTStmtReader::VisitSEHFinallyStmt(SEHFinallyStmt *S) {
1774   VisitStmt(S);
1775   S->Loc = ReadSourceLocation();
1776   S->Block = Record.readSubStmt();
1777 }
1778 
1779 void ASTStmtReader::VisitSEHTryStmt(SEHTryStmt *S) {
1780   VisitStmt(S);
1781   S->IsCXXTry = Record.readInt();
1782   S->TryLoc = ReadSourceLocation();
1783   S->Children[SEHTryStmt::TRY] = Record.readSubStmt();
1784   S->Children[SEHTryStmt::HANDLER] = Record.readSubStmt();
1785 }
1786 
1787 //===----------------------------------------------------------------------===//
1788 // CUDA Expressions and Statements
1789 //===----------------------------------------------------------------------===//
1790 
1791 void ASTStmtReader::VisitCUDAKernelCallExpr(CUDAKernelCallExpr *E) {
1792   VisitCallExpr(E);
1793   E->setConfig(cast<CallExpr>(Record.readSubExpr()));
1794 }
1795 
1796 //===----------------------------------------------------------------------===//
1797 // OpenCL Expressions and Statements.
1798 //===----------------------------------------------------------------------===//
1799 void ASTStmtReader::VisitAsTypeExpr(AsTypeExpr *E) {
1800   VisitExpr(E);
1801   E->BuiltinLoc = ReadSourceLocation();
1802   E->RParenLoc = ReadSourceLocation();
1803   E->SrcExpr = Record.readSubExpr();
1804 }
1805 
1806 //===----------------------------------------------------------------------===//
1807 // OpenMP Directives.
1808 //===----------------------------------------------------------------------===//
1809 
1810 void ASTStmtReader::VisitOMPExecutableDirective(OMPExecutableDirective *E) {
1811   E->setLocStart(ReadSourceLocation());
1812   E->setLocEnd(ReadSourceLocation());
1813   OMPClauseReader ClauseReader(Record);
1814   SmallVector<OMPClause *, 5> Clauses;
1815   for (unsigned i = 0; i < E->getNumClauses(); ++i)
1816     Clauses.push_back(ClauseReader.readClause());
1817   E->setClauses(Clauses);
1818   if (E->hasAssociatedStmt())
1819     E->setAssociatedStmt(Record.readSubStmt());
1820 }
1821 
1822 void ASTStmtReader::VisitOMPLoopDirective(OMPLoopDirective *D) {
1823   VisitStmt(D);
1824   // Two fields (NumClauses and CollapsedNum) were read in ReadStmtFromStream.
1825   Record.skipInts(2);
1826   VisitOMPExecutableDirective(D);
1827   D->setIterationVariable(Record.readSubExpr());
1828   D->setLastIteration(Record.readSubExpr());
1829   D->setCalcLastIteration(Record.readSubExpr());
1830   D->setPreCond(Record.readSubExpr());
1831   D->setCond(Record.readSubExpr());
1832   D->setInit(Record.readSubExpr());
1833   D->setInc(Record.readSubExpr());
1834   D->setPreInits(Record.readSubStmt());
1835   if (isOpenMPWorksharingDirective(D->getDirectiveKind()) ||
1836       isOpenMPTaskLoopDirective(D->getDirectiveKind()) ||
1837       isOpenMPDistributeDirective(D->getDirectiveKind())) {
1838     D->setIsLastIterVariable(Record.readSubExpr());
1839     D->setLowerBoundVariable(Record.readSubExpr());
1840     D->setUpperBoundVariable(Record.readSubExpr());
1841     D->setStrideVariable(Record.readSubExpr());
1842     D->setEnsureUpperBound(Record.readSubExpr());
1843     D->setNextLowerBound(Record.readSubExpr());
1844     D->setNextUpperBound(Record.readSubExpr());
1845     D->setNumIterations(Record.readSubExpr());
1846   }
1847   if (isOpenMPLoopBoundSharingDirective(D->getDirectiveKind())) {
1848     D->setPrevLowerBoundVariable(Record.readSubExpr());
1849     D->setPrevUpperBoundVariable(Record.readSubExpr());
1850     D->setDistInc(Record.readSubExpr());
1851     D->setPrevEnsureUpperBound(Record.readSubExpr());
1852     D->setCombinedLowerBoundVariable(Record.readSubExpr());
1853     D->setCombinedUpperBoundVariable(Record.readSubExpr());
1854     D->setCombinedEnsureUpperBound(Record.readSubExpr());
1855     D->setCombinedInit(Record.readSubExpr());
1856     D->setCombinedCond(Record.readSubExpr());
1857     D->setCombinedNextLowerBound(Record.readSubExpr());
1858     D->setCombinedNextUpperBound(Record.readSubExpr());
1859   }
1860   SmallVector<Expr *, 4> Sub;
1861   unsigned CollapsedNum = D->getCollapsedNumber();
1862   Sub.reserve(CollapsedNum);
1863   for (unsigned i = 0; i < CollapsedNum; ++i)
1864     Sub.push_back(Record.readSubExpr());
1865   D->setCounters(Sub);
1866   Sub.clear();
1867   for (unsigned i = 0; i < CollapsedNum; ++i)
1868     Sub.push_back(Record.readSubExpr());
1869   D->setPrivateCounters(Sub);
1870   Sub.clear();
1871   for (unsigned i = 0; i < CollapsedNum; ++i)
1872     Sub.push_back(Record.readSubExpr());
1873   D->setInits(Sub);
1874   Sub.clear();
1875   for (unsigned i = 0; i < CollapsedNum; ++i)
1876     Sub.push_back(Record.readSubExpr());
1877   D->setUpdates(Sub);
1878   Sub.clear();
1879   for (unsigned i = 0; i < CollapsedNum; ++i)
1880     Sub.push_back(Record.readSubExpr());
1881   D->setFinals(Sub);
1882 }
1883 
1884 void ASTStmtReader::VisitOMPParallelDirective(OMPParallelDirective *D) {
1885   VisitStmt(D);
1886   // The NumClauses field was read in ReadStmtFromStream.
1887   Record.skipInts(1);
1888   VisitOMPExecutableDirective(D);
1889   D->setHasCancel(Record.readInt());
1890 }
1891 
1892 void ASTStmtReader::VisitOMPSimdDirective(OMPSimdDirective *D) {
1893   VisitOMPLoopDirective(D);
1894 }
1895 
1896 void ASTStmtReader::VisitOMPForDirective(OMPForDirective *D) {
1897   VisitOMPLoopDirective(D);
1898   D->setHasCancel(Record.readInt());
1899 }
1900 
1901 void ASTStmtReader::VisitOMPForSimdDirective(OMPForSimdDirective *D) {
1902   VisitOMPLoopDirective(D);
1903 }
1904 
1905 void ASTStmtReader::VisitOMPSectionsDirective(OMPSectionsDirective *D) {
1906   VisitStmt(D);
1907   // The NumClauses field was read in ReadStmtFromStream.
1908   Record.skipInts(1);
1909   VisitOMPExecutableDirective(D);
1910   D->setHasCancel(Record.readInt());
1911 }
1912 
1913 void ASTStmtReader::VisitOMPSectionDirective(OMPSectionDirective *D) {
1914   VisitStmt(D);
1915   VisitOMPExecutableDirective(D);
1916   D->setHasCancel(Record.readInt());
1917 }
1918 
1919 void ASTStmtReader::VisitOMPSingleDirective(OMPSingleDirective *D) {
1920   VisitStmt(D);
1921   // The NumClauses field was read in ReadStmtFromStream.
1922   Record.skipInts(1);
1923   VisitOMPExecutableDirective(D);
1924 }
1925 
1926 void ASTStmtReader::VisitOMPMasterDirective(OMPMasterDirective *D) {
1927   VisitStmt(D);
1928   VisitOMPExecutableDirective(D);
1929 }
1930 
1931 void ASTStmtReader::VisitOMPCriticalDirective(OMPCriticalDirective *D) {
1932   VisitStmt(D);
1933   // The NumClauses field was read in ReadStmtFromStream.
1934   Record.skipInts(1);
1935   VisitOMPExecutableDirective(D);
1936   ReadDeclarationNameInfo(D->DirName);
1937 }
1938 
1939 void ASTStmtReader::VisitOMPParallelForDirective(OMPParallelForDirective *D) {
1940   VisitOMPLoopDirective(D);
1941   D->setHasCancel(Record.readInt());
1942 }
1943 
1944 void ASTStmtReader::VisitOMPParallelForSimdDirective(
1945     OMPParallelForSimdDirective *D) {
1946   VisitOMPLoopDirective(D);
1947 }
1948 
1949 void ASTStmtReader::VisitOMPParallelSectionsDirective(
1950     OMPParallelSectionsDirective *D) {
1951   VisitStmt(D);
1952   // The NumClauses field was read in ReadStmtFromStream.
1953   Record.skipInts(1);
1954   VisitOMPExecutableDirective(D);
1955   D->setHasCancel(Record.readInt());
1956 }
1957 
1958 void ASTStmtReader::VisitOMPTaskDirective(OMPTaskDirective *D) {
1959   VisitStmt(D);
1960   // The NumClauses field was read in ReadStmtFromStream.
1961   Record.skipInts(1);
1962   VisitOMPExecutableDirective(D);
1963   D->setHasCancel(Record.readInt());
1964 }
1965 
1966 void ASTStmtReader::VisitOMPTaskyieldDirective(OMPTaskyieldDirective *D) {
1967   VisitStmt(D);
1968   VisitOMPExecutableDirective(D);
1969 }
1970 
1971 void ASTStmtReader::VisitOMPBarrierDirective(OMPBarrierDirective *D) {
1972   VisitStmt(D);
1973   VisitOMPExecutableDirective(D);
1974 }
1975 
1976 void ASTStmtReader::VisitOMPTaskwaitDirective(OMPTaskwaitDirective *D) {
1977   VisitStmt(D);
1978   VisitOMPExecutableDirective(D);
1979 }
1980 
1981 void ASTStmtReader::VisitOMPTaskgroupDirective(OMPTaskgroupDirective *D) {
1982   VisitStmt(D);
1983   // The NumClauses field was read in ReadStmtFromStream.
1984   Record.skipInts(1);
1985   VisitOMPExecutableDirective(D);
1986   D->setReductionRef(Record.readSubExpr());
1987 }
1988 
1989 void ASTStmtReader::VisitOMPFlushDirective(OMPFlushDirective *D) {
1990   VisitStmt(D);
1991   // The NumClauses field was read in ReadStmtFromStream.
1992   Record.skipInts(1);
1993   VisitOMPExecutableDirective(D);
1994 }
1995 
1996 void ASTStmtReader::VisitOMPOrderedDirective(OMPOrderedDirective *D) {
1997   VisitStmt(D);
1998   // The NumClauses field was read in ReadStmtFromStream.
1999   Record.skipInts(1);
2000   VisitOMPExecutableDirective(D);
2001 }
2002 
2003 void ASTStmtReader::VisitOMPAtomicDirective(OMPAtomicDirective *D) {
2004   VisitStmt(D);
2005   // The NumClauses field was read in ReadStmtFromStream.
2006   Record.skipInts(1);
2007   VisitOMPExecutableDirective(D);
2008   D->setX(Record.readSubExpr());
2009   D->setV(Record.readSubExpr());
2010   D->setExpr(Record.readSubExpr());
2011   D->setUpdateExpr(Record.readSubExpr());
2012   D->IsXLHSInRHSPart = Record.readInt() != 0;
2013   D->IsPostfixUpdate = Record.readInt() != 0;
2014 }
2015 
2016 void ASTStmtReader::VisitOMPTargetDirective(OMPTargetDirective *D) {
2017   VisitStmt(D);
2018   // The NumClauses field was read in ReadStmtFromStream.
2019   Record.skipInts(1);
2020   VisitOMPExecutableDirective(D);
2021 }
2022 
2023 void ASTStmtReader::VisitOMPTargetDataDirective(OMPTargetDataDirective *D) {
2024   VisitStmt(D);
2025   Record.skipInts(1);
2026   VisitOMPExecutableDirective(D);
2027 }
2028 
2029 void ASTStmtReader::VisitOMPTargetEnterDataDirective(
2030     OMPTargetEnterDataDirective *D) {
2031   VisitStmt(D);
2032   Record.skipInts(1);
2033   VisitOMPExecutableDirective(D);
2034 }
2035 
2036 void ASTStmtReader::VisitOMPTargetExitDataDirective(
2037     OMPTargetExitDataDirective *D) {
2038   VisitStmt(D);
2039   Record.skipInts(1);
2040   VisitOMPExecutableDirective(D);
2041 }
2042 
2043 void ASTStmtReader::VisitOMPTargetParallelDirective(
2044     OMPTargetParallelDirective *D) {
2045   VisitStmt(D);
2046   Record.skipInts(1);
2047   VisitOMPExecutableDirective(D);
2048 }
2049 
2050 void ASTStmtReader::VisitOMPTargetParallelForDirective(
2051     OMPTargetParallelForDirective *D) {
2052   VisitOMPLoopDirective(D);
2053   D->setHasCancel(Record.readInt());
2054 }
2055 
2056 void ASTStmtReader::VisitOMPTeamsDirective(OMPTeamsDirective *D) {
2057   VisitStmt(D);
2058   // The NumClauses field was read in ReadStmtFromStream.
2059   Record.skipInts(1);
2060   VisitOMPExecutableDirective(D);
2061 }
2062 
2063 void ASTStmtReader::VisitOMPCancellationPointDirective(
2064     OMPCancellationPointDirective *D) {
2065   VisitStmt(D);
2066   VisitOMPExecutableDirective(D);
2067   D->setCancelRegion(static_cast<OpenMPDirectiveKind>(Record.readInt()));
2068 }
2069 
2070 void ASTStmtReader::VisitOMPCancelDirective(OMPCancelDirective *D) {
2071   VisitStmt(D);
2072   // The NumClauses field was read in ReadStmtFromStream.
2073   Record.skipInts(1);
2074   VisitOMPExecutableDirective(D);
2075   D->setCancelRegion(static_cast<OpenMPDirectiveKind>(Record.readInt()));
2076 }
2077 
2078 void ASTStmtReader::VisitOMPTaskLoopDirective(OMPTaskLoopDirective *D) {
2079   VisitOMPLoopDirective(D);
2080 }
2081 
2082 void ASTStmtReader::VisitOMPTaskLoopSimdDirective(OMPTaskLoopSimdDirective *D) {
2083   VisitOMPLoopDirective(D);
2084 }
2085 
2086 void ASTStmtReader::VisitOMPDistributeDirective(OMPDistributeDirective *D) {
2087   VisitOMPLoopDirective(D);
2088 }
2089 
2090 void ASTStmtReader::VisitOMPTargetUpdateDirective(OMPTargetUpdateDirective *D) {
2091   VisitStmt(D);
2092   Record.skipInts(1);
2093   VisitOMPExecutableDirective(D);
2094 }
2095 
2096 void ASTStmtReader::VisitOMPDistributeParallelForDirective(
2097     OMPDistributeParallelForDirective *D) {
2098   VisitOMPLoopDirective(D);
2099   D->setHasCancel(Record.readInt());
2100 }
2101 
2102 void ASTStmtReader::VisitOMPDistributeParallelForSimdDirective(
2103     OMPDistributeParallelForSimdDirective *D) {
2104   VisitOMPLoopDirective(D);
2105 }
2106 
2107 void ASTStmtReader::VisitOMPDistributeSimdDirective(
2108     OMPDistributeSimdDirective *D) {
2109   VisitOMPLoopDirective(D);
2110 }
2111 
2112 void ASTStmtReader::VisitOMPTargetParallelForSimdDirective(
2113     OMPTargetParallelForSimdDirective *D) {
2114   VisitOMPLoopDirective(D);
2115 }
2116 
2117 void ASTStmtReader::VisitOMPTargetSimdDirective(OMPTargetSimdDirective *D) {
2118   VisitOMPLoopDirective(D);
2119 }
2120 
2121 void ASTStmtReader::VisitOMPTeamsDistributeDirective(
2122     OMPTeamsDistributeDirective *D) {
2123   VisitOMPLoopDirective(D);
2124 }
2125 
2126 void ASTStmtReader::VisitOMPTeamsDistributeSimdDirective(
2127     OMPTeamsDistributeSimdDirective *D) {
2128   VisitOMPLoopDirective(D);
2129 }
2130 
2131 void ASTStmtReader::VisitOMPTeamsDistributeParallelForSimdDirective(
2132     OMPTeamsDistributeParallelForSimdDirective *D) {
2133   VisitOMPLoopDirective(D);
2134 }
2135 
2136 void ASTStmtReader::VisitOMPTeamsDistributeParallelForDirective(
2137     OMPTeamsDistributeParallelForDirective *D) {
2138   VisitOMPLoopDirective(D);
2139   D->setHasCancel(Record.readInt());
2140 }
2141 
2142 void ASTStmtReader::VisitOMPTargetTeamsDirective(OMPTargetTeamsDirective *D) {
2143   VisitStmt(D);
2144   // The NumClauses field was read in ReadStmtFromStream.
2145   Record.skipInts(1);
2146   VisitOMPExecutableDirective(D);
2147 }
2148 
2149 void ASTStmtReader::VisitOMPTargetTeamsDistributeDirective(
2150     OMPTargetTeamsDistributeDirective *D) {
2151   VisitOMPLoopDirective(D);
2152 }
2153 
2154 void ASTStmtReader::VisitOMPTargetTeamsDistributeParallelForDirective(
2155     OMPTargetTeamsDistributeParallelForDirective *D) {
2156   VisitOMPLoopDirective(D);
2157   D->setHasCancel(Record.readInt());
2158 }
2159 
2160 void ASTStmtReader::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
2161     OMPTargetTeamsDistributeParallelForSimdDirective *D) {
2162   VisitOMPLoopDirective(D);
2163 }
2164 
2165 void ASTStmtReader::VisitOMPTargetTeamsDistributeSimdDirective(
2166     OMPTargetTeamsDistributeSimdDirective *D) {
2167   VisitOMPLoopDirective(D);
2168 }
2169 
2170 //===----------------------------------------------------------------------===//
2171 // ASTReader Implementation
2172 //===----------------------------------------------------------------------===//
2173 
2174 Stmt *ASTReader::ReadStmt(ModuleFile &F) {
2175   switch (ReadingKind) {
2176   case Read_None:
2177     llvm_unreachable("should not call this when not reading anything");
2178   case Read_Decl:
2179   case Read_Type:
2180     return ReadStmtFromStream(F);
2181   case Read_Stmt:
2182     return ReadSubStmt();
2183   }
2184 
2185   llvm_unreachable("ReadingKind not set ?");
2186 }
2187 
2188 Expr *ASTReader::ReadExpr(ModuleFile &F) {
2189   return cast_or_null<Expr>(ReadStmt(F));
2190 }
2191 
2192 Expr *ASTReader::ReadSubExpr() {
2193   return cast_or_null<Expr>(ReadSubStmt());
2194 }
2195 
2196 // Within the bitstream, expressions are stored in Reverse Polish
2197 // Notation, with each of the subexpressions preceding the
2198 // expression they are stored in. Subexpressions are stored from last to first.
2199 // To evaluate expressions, we continue reading expressions and placing them on
2200 // the stack, with expressions having operands removing those operands from the
2201 // stack. Evaluation terminates when we see a STMT_STOP record, and
2202 // the single remaining expression on the stack is our result.
2203 Stmt *ASTReader::ReadStmtFromStream(ModuleFile &F) {
2204   ReadingKindTracker ReadingKind(Read_Stmt, *this);
2205   llvm::BitstreamCursor &Cursor = F.DeclsCursor;
2206 
2207   // Map of offset to previously deserialized stmt. The offset points
2208   // just after the stmt record.
2209   llvm::DenseMap<uint64_t, Stmt *> StmtEntries;
2210 
2211 #ifndef NDEBUG
2212   unsigned PrevNumStmts = StmtStack.size();
2213 #endif
2214 
2215   ASTRecordReader Record(*this, F);
2216   ASTStmtReader Reader(Record, Cursor);
2217   Stmt::EmptyShell Empty;
2218 
2219   while (true) {
2220     llvm::BitstreamEntry Entry = Cursor.advanceSkippingSubblocks();
2221 
2222     switch (Entry.Kind) {
2223     case llvm::BitstreamEntry::SubBlock: // Handled for us already.
2224     case llvm::BitstreamEntry::Error:
2225       Error("malformed block record in AST file");
2226       return nullptr;
2227     case llvm::BitstreamEntry::EndBlock:
2228       goto Done;
2229     case llvm::BitstreamEntry::Record:
2230       // The interesting case.
2231       break;
2232     }
2233 
2234     ASTContext &Context = getContext();
2235     Stmt *S = nullptr;
2236     bool Finished = false;
2237     bool IsStmtReference = false;
2238     switch ((StmtCode)Record.readRecord(Cursor, Entry.ID)) {
2239     case STMT_STOP:
2240       Finished = true;
2241       break;
2242 
2243     case STMT_REF_PTR:
2244       IsStmtReference = true;
2245       assert(StmtEntries.find(Record[0]) != StmtEntries.end() &&
2246              "No stmt was recorded for this offset reference!");
2247       S = StmtEntries[Record.readInt()];
2248       break;
2249 
2250     case STMT_NULL_PTR:
2251       S = nullptr;
2252       break;
2253 
2254     case STMT_NULL:
2255       S = new (Context) NullStmt(Empty);
2256       break;
2257 
2258     case STMT_COMPOUND:
2259       S = CompoundStmt::CreateEmpty(
2260           Context, /*NumStmts=*/Record[ASTStmtReader::NumStmtFields]);
2261       break;
2262 
2263     case STMT_CASE:
2264       S = new (Context) CaseStmt(Empty);
2265       break;
2266 
2267     case STMT_DEFAULT:
2268       S = new (Context) DefaultStmt(Empty);
2269       break;
2270 
2271     case STMT_LABEL:
2272       S = new (Context) LabelStmt(Empty);
2273       break;
2274 
2275     case STMT_ATTRIBUTED:
2276       S = AttributedStmt::CreateEmpty(
2277         Context,
2278         /*NumAttrs*/Record[ASTStmtReader::NumStmtFields]);
2279       break;
2280 
2281     case STMT_IF:
2282       S = new (Context) IfStmt(Empty);
2283       break;
2284 
2285     case STMT_SWITCH:
2286       S = new (Context) SwitchStmt(Empty);
2287       break;
2288 
2289     case STMT_WHILE:
2290       S = new (Context) WhileStmt(Empty);
2291       break;
2292 
2293     case STMT_DO:
2294       S = new (Context) DoStmt(Empty);
2295       break;
2296 
2297     case STMT_FOR:
2298       S = new (Context) ForStmt(Empty);
2299       break;
2300 
2301     case STMT_GOTO:
2302       S = new (Context) GotoStmt(Empty);
2303       break;
2304 
2305     case STMT_INDIRECT_GOTO:
2306       S = new (Context) IndirectGotoStmt(Empty);
2307       break;
2308 
2309     case STMT_CONTINUE:
2310       S = new (Context) ContinueStmt(Empty);
2311       break;
2312 
2313     case STMT_BREAK:
2314       S = new (Context) BreakStmt(Empty);
2315       break;
2316 
2317     case STMT_RETURN:
2318       S = new (Context) ReturnStmt(Empty);
2319       break;
2320 
2321     case STMT_DECL:
2322       S = new (Context) DeclStmt(Empty);
2323       break;
2324 
2325     case STMT_GCCASM:
2326       S = new (Context) GCCAsmStmt(Empty);
2327       break;
2328 
2329     case STMT_MSASM:
2330       S = new (Context) MSAsmStmt(Empty);
2331       break;
2332 
2333     case STMT_CAPTURED:
2334       S = CapturedStmt::CreateDeserialized(Context,
2335                                            Record[ASTStmtReader::NumStmtFields]);
2336       break;
2337 
2338     case EXPR_PREDEFINED:
2339       S = new (Context) PredefinedExpr(Empty);
2340       break;
2341 
2342     case EXPR_DECL_REF:
2343       S = DeclRefExpr::CreateEmpty(
2344         Context,
2345         /*HasQualifier=*/Record[ASTStmtReader::NumExprFields],
2346         /*HasFoundDecl=*/Record[ASTStmtReader::NumExprFields + 1],
2347         /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields + 2],
2348         /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields + 2] ?
2349           Record[ASTStmtReader::NumExprFields + 5] : 0);
2350       break;
2351 
2352     case EXPR_INTEGER_LITERAL:
2353       S = IntegerLiteral::Create(Context, Empty);
2354       break;
2355 
2356     case EXPR_FLOATING_LITERAL:
2357       S = FloatingLiteral::Create(Context, Empty);
2358       break;
2359 
2360     case EXPR_IMAGINARY_LITERAL:
2361       S = new (Context) ImaginaryLiteral(Empty);
2362       break;
2363 
2364     case EXPR_STRING_LITERAL:
2365       S = StringLiteral::CreateEmpty(Context,
2366                                      Record[ASTStmtReader::NumExprFields + 1]);
2367       break;
2368 
2369     case EXPR_CHARACTER_LITERAL:
2370       S = new (Context) CharacterLiteral(Empty);
2371       break;
2372 
2373     case EXPR_PAREN:
2374       S = new (Context) ParenExpr(Empty);
2375       break;
2376 
2377     case EXPR_PAREN_LIST:
2378       S = new (Context) ParenListExpr(Empty);
2379       break;
2380 
2381     case EXPR_UNARY_OPERATOR:
2382       S = new (Context) UnaryOperator(Empty);
2383       break;
2384 
2385     case EXPR_OFFSETOF:
2386       S = OffsetOfExpr::CreateEmpty(Context,
2387                                     Record[ASTStmtReader::NumExprFields],
2388                                     Record[ASTStmtReader::NumExprFields + 1]);
2389       break;
2390 
2391     case EXPR_SIZEOF_ALIGN_OF:
2392       S = new (Context) UnaryExprOrTypeTraitExpr(Empty);
2393       break;
2394 
2395     case EXPR_ARRAY_SUBSCRIPT:
2396       S = new (Context) ArraySubscriptExpr(Empty);
2397       break;
2398 
2399     case EXPR_OMP_ARRAY_SECTION:
2400       S = new (Context) OMPArraySectionExpr(Empty);
2401       break;
2402 
2403     case EXPR_CALL:
2404       S = new (Context) CallExpr(Context, Stmt::CallExprClass, Empty);
2405       break;
2406 
2407     case EXPR_MEMBER: {
2408       // We load everything here and fully initialize it at creation.
2409       // That way we can use MemberExpr::Create and don't have to duplicate its
2410       // logic with a MemberExpr::CreateEmpty.
2411 
2412       assert(Record.getIdx() == 0);
2413       NestedNameSpecifierLoc QualifierLoc;
2414       if (Record.readInt()) { // HasQualifier.
2415         QualifierLoc = Record.readNestedNameSpecifierLoc();
2416       }
2417 
2418       SourceLocation TemplateKWLoc;
2419       TemplateArgumentListInfo ArgInfo;
2420       bool HasTemplateKWAndArgsInfo = Record.readInt();
2421       if (HasTemplateKWAndArgsInfo) {
2422         TemplateKWLoc = Record.readSourceLocation();
2423         unsigned NumTemplateArgs = Record.readInt();
2424         ArgInfo.setLAngleLoc(Record.readSourceLocation());
2425         ArgInfo.setRAngleLoc(Record.readSourceLocation());
2426         for (unsigned i = 0; i != NumTemplateArgs; ++i)
2427           ArgInfo.addArgument(Record.readTemplateArgumentLoc());
2428       }
2429 
2430       bool HadMultipleCandidates = Record.readInt();
2431 
2432       auto *FoundD = Record.readDeclAs<NamedDecl>();
2433       auto AS = (AccessSpecifier)Record.readInt();
2434       DeclAccessPair FoundDecl = DeclAccessPair::make(FoundD, AS);
2435 
2436       QualType T = Record.readType();
2437       auto VK = static_cast<ExprValueKind>(Record.readInt());
2438       auto OK = static_cast<ExprObjectKind>(Record.readInt());
2439       Expr *Base = ReadSubExpr();
2440       auto *MemberD = Record.readDeclAs<ValueDecl>();
2441       SourceLocation MemberLoc = Record.readSourceLocation();
2442       DeclarationNameInfo MemberNameInfo(MemberD->getDeclName(), MemberLoc);
2443       bool IsArrow = Record.readInt();
2444       SourceLocation OperatorLoc = Record.readSourceLocation();
2445 
2446       S = MemberExpr::Create(Context, Base, IsArrow, OperatorLoc, QualifierLoc,
2447                              TemplateKWLoc, MemberD, FoundDecl, MemberNameInfo,
2448                              HasTemplateKWAndArgsInfo ? &ArgInfo : nullptr, T,
2449                              VK, OK);
2450       Record.readDeclarationNameLoc(cast<MemberExpr>(S)->MemberDNLoc,
2451                                     MemberD->getDeclName());
2452       if (HadMultipleCandidates)
2453         cast<MemberExpr>(S)->setHadMultipleCandidates(true);
2454       break;
2455     }
2456 
2457     case EXPR_BINARY_OPERATOR:
2458       S = new (Context) BinaryOperator(Empty);
2459       break;
2460 
2461     case EXPR_COMPOUND_ASSIGN_OPERATOR:
2462       S = new (Context) CompoundAssignOperator(Empty);
2463       break;
2464 
2465     case EXPR_CONDITIONAL_OPERATOR:
2466       S = new (Context) ConditionalOperator(Empty);
2467       break;
2468 
2469     case EXPR_BINARY_CONDITIONAL_OPERATOR:
2470       S = new (Context) BinaryConditionalOperator(Empty);
2471       break;
2472 
2473     case EXPR_IMPLICIT_CAST:
2474       S = ImplicitCastExpr::CreateEmpty(Context,
2475                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
2476       break;
2477 
2478     case EXPR_CSTYLE_CAST:
2479       S = CStyleCastExpr::CreateEmpty(Context,
2480                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
2481       break;
2482 
2483     case EXPR_COMPOUND_LITERAL:
2484       S = new (Context) CompoundLiteralExpr(Empty);
2485       break;
2486 
2487     case EXPR_EXT_VECTOR_ELEMENT:
2488       S = new (Context) ExtVectorElementExpr(Empty);
2489       break;
2490 
2491     case EXPR_INIT_LIST:
2492       S = new (Context) InitListExpr(Empty);
2493       break;
2494 
2495     case EXPR_DESIGNATED_INIT:
2496       S = DesignatedInitExpr::CreateEmpty(Context,
2497                                      Record[ASTStmtReader::NumExprFields] - 1);
2498 
2499       break;
2500 
2501     case EXPR_DESIGNATED_INIT_UPDATE:
2502       S = new (Context) DesignatedInitUpdateExpr(Empty);
2503       break;
2504 
2505     case EXPR_IMPLICIT_VALUE_INIT:
2506       S = new (Context) ImplicitValueInitExpr(Empty);
2507       break;
2508 
2509     case EXPR_NO_INIT:
2510       S = new (Context) NoInitExpr(Empty);
2511       break;
2512 
2513     case EXPR_ARRAY_INIT_LOOP:
2514       S = new (Context) ArrayInitLoopExpr(Empty);
2515       break;
2516 
2517     case EXPR_ARRAY_INIT_INDEX:
2518       S = new (Context) ArrayInitIndexExpr(Empty);
2519       break;
2520 
2521     case EXPR_VA_ARG:
2522       S = new (Context) VAArgExpr(Empty);
2523       break;
2524 
2525     case EXPR_ADDR_LABEL:
2526       S = new (Context) AddrLabelExpr(Empty);
2527       break;
2528 
2529     case EXPR_STMT:
2530       S = new (Context) StmtExpr(Empty);
2531       break;
2532 
2533     case EXPR_CHOOSE:
2534       S = new (Context) ChooseExpr(Empty);
2535       break;
2536 
2537     case EXPR_GNU_NULL:
2538       S = new (Context) GNUNullExpr(Empty);
2539       break;
2540 
2541     case EXPR_SHUFFLE_VECTOR:
2542       S = new (Context) ShuffleVectorExpr(Empty);
2543       break;
2544 
2545     case EXPR_CONVERT_VECTOR:
2546       S = new (Context) ConvertVectorExpr(Empty);
2547       break;
2548 
2549     case EXPR_BLOCK:
2550       S = new (Context) BlockExpr(Empty);
2551       break;
2552 
2553     case EXPR_GENERIC_SELECTION:
2554       S = new (Context) GenericSelectionExpr(Empty);
2555       break;
2556 
2557     case EXPR_OBJC_STRING_LITERAL:
2558       S = new (Context) ObjCStringLiteral(Empty);
2559       break;
2560 
2561     case EXPR_OBJC_BOXED_EXPRESSION:
2562       S = new (Context) ObjCBoxedExpr(Empty);
2563       break;
2564 
2565     case EXPR_OBJC_ARRAY_LITERAL:
2566       S = ObjCArrayLiteral::CreateEmpty(Context,
2567                                         Record[ASTStmtReader::NumExprFields]);
2568       break;
2569 
2570     case EXPR_OBJC_DICTIONARY_LITERAL:
2571       S = ObjCDictionaryLiteral::CreateEmpty(Context,
2572             Record[ASTStmtReader::NumExprFields],
2573             Record[ASTStmtReader::NumExprFields + 1]);
2574       break;
2575 
2576     case EXPR_OBJC_ENCODE:
2577       S = new (Context) ObjCEncodeExpr(Empty);
2578       break;
2579 
2580     case EXPR_OBJC_SELECTOR_EXPR:
2581       S = new (Context) ObjCSelectorExpr(Empty);
2582       break;
2583 
2584     case EXPR_OBJC_PROTOCOL_EXPR:
2585       S = new (Context) ObjCProtocolExpr(Empty);
2586       break;
2587 
2588     case EXPR_OBJC_IVAR_REF_EXPR:
2589       S = new (Context) ObjCIvarRefExpr(Empty);
2590       break;
2591 
2592     case EXPR_OBJC_PROPERTY_REF_EXPR:
2593       S = new (Context) ObjCPropertyRefExpr(Empty);
2594       break;
2595 
2596     case EXPR_OBJC_SUBSCRIPT_REF_EXPR:
2597       S = new (Context) ObjCSubscriptRefExpr(Empty);
2598       break;
2599 
2600     case EXPR_OBJC_KVC_REF_EXPR:
2601       llvm_unreachable("mismatching AST file");
2602 
2603     case EXPR_OBJC_MESSAGE_EXPR:
2604       S = ObjCMessageExpr::CreateEmpty(Context,
2605                                      Record[ASTStmtReader::NumExprFields],
2606                                      Record[ASTStmtReader::NumExprFields + 1]);
2607       break;
2608 
2609     case EXPR_OBJC_ISA:
2610       S = new (Context) ObjCIsaExpr(Empty);
2611       break;
2612 
2613     case EXPR_OBJC_INDIRECT_COPY_RESTORE:
2614       S = new (Context) ObjCIndirectCopyRestoreExpr(Empty);
2615       break;
2616 
2617     case EXPR_OBJC_BRIDGED_CAST:
2618       S = new (Context) ObjCBridgedCastExpr(Empty);
2619       break;
2620 
2621     case STMT_OBJC_FOR_COLLECTION:
2622       S = new (Context) ObjCForCollectionStmt(Empty);
2623       break;
2624 
2625     case STMT_OBJC_CATCH:
2626       S = new (Context) ObjCAtCatchStmt(Empty);
2627       break;
2628 
2629     case STMT_OBJC_FINALLY:
2630       S = new (Context) ObjCAtFinallyStmt(Empty);
2631       break;
2632 
2633     case STMT_OBJC_AT_TRY:
2634       S = ObjCAtTryStmt::CreateEmpty(Context,
2635                                      Record[ASTStmtReader::NumStmtFields],
2636                                      Record[ASTStmtReader::NumStmtFields + 1]);
2637       break;
2638 
2639     case STMT_OBJC_AT_SYNCHRONIZED:
2640       S = new (Context) ObjCAtSynchronizedStmt(Empty);
2641       break;
2642 
2643     case STMT_OBJC_AT_THROW:
2644       S = new (Context) ObjCAtThrowStmt(Empty);
2645       break;
2646 
2647     case STMT_OBJC_AUTORELEASE_POOL:
2648       S = new (Context) ObjCAutoreleasePoolStmt(Empty);
2649       break;
2650 
2651     case EXPR_OBJC_BOOL_LITERAL:
2652       S = new (Context) ObjCBoolLiteralExpr(Empty);
2653       break;
2654 
2655     case EXPR_OBJC_AVAILABILITY_CHECK:
2656       S = new (Context) ObjCAvailabilityCheckExpr(Empty);
2657       break;
2658 
2659     case STMT_SEH_LEAVE:
2660       S = new (Context) SEHLeaveStmt(Empty);
2661       break;
2662 
2663     case STMT_SEH_EXCEPT:
2664       S = new (Context) SEHExceptStmt(Empty);
2665       break;
2666 
2667     case STMT_SEH_FINALLY:
2668       S = new (Context) SEHFinallyStmt(Empty);
2669       break;
2670 
2671     case STMT_SEH_TRY:
2672       S = new (Context) SEHTryStmt(Empty);
2673       break;
2674 
2675     case STMT_CXX_CATCH:
2676       S = new (Context) CXXCatchStmt(Empty);
2677       break;
2678 
2679     case STMT_CXX_TRY:
2680       S = CXXTryStmt::Create(Context, Empty,
2681              /*NumHandlers=*/Record[ASTStmtReader::NumStmtFields]);
2682       break;
2683 
2684     case STMT_CXX_FOR_RANGE:
2685       S = new (Context) CXXForRangeStmt(Empty);
2686       break;
2687 
2688     case STMT_MS_DEPENDENT_EXISTS:
2689       S = new (Context) MSDependentExistsStmt(SourceLocation(), true,
2690                                               NestedNameSpecifierLoc(),
2691                                               DeclarationNameInfo(),
2692                                               nullptr);
2693       break;
2694 
2695     case STMT_OMP_PARALLEL_DIRECTIVE:
2696       S =
2697         OMPParallelDirective::CreateEmpty(Context,
2698                                           Record[ASTStmtReader::NumStmtFields],
2699                                           Empty);
2700       break;
2701 
2702     case STMT_OMP_SIMD_DIRECTIVE: {
2703       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2704       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2705       S = OMPSimdDirective::CreateEmpty(Context, NumClauses,
2706                                         CollapsedNum, Empty);
2707       break;
2708     }
2709 
2710     case STMT_OMP_FOR_DIRECTIVE: {
2711       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2712       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2713       S = OMPForDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2714                                        Empty);
2715       break;
2716     }
2717 
2718     case STMT_OMP_FOR_SIMD_DIRECTIVE: {
2719       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2720       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2721       S = OMPForSimdDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2722                                            Empty);
2723       break;
2724     }
2725 
2726     case STMT_OMP_SECTIONS_DIRECTIVE:
2727       S = OMPSectionsDirective::CreateEmpty(
2728           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2729       break;
2730 
2731     case STMT_OMP_SECTION_DIRECTIVE:
2732       S = OMPSectionDirective::CreateEmpty(Context, Empty);
2733       break;
2734 
2735     case STMT_OMP_SINGLE_DIRECTIVE:
2736       S = OMPSingleDirective::CreateEmpty(
2737           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2738       break;
2739 
2740     case STMT_OMP_MASTER_DIRECTIVE:
2741       S = OMPMasterDirective::CreateEmpty(Context, Empty);
2742       break;
2743 
2744     case STMT_OMP_CRITICAL_DIRECTIVE:
2745       S = OMPCriticalDirective::CreateEmpty(
2746           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2747       break;
2748 
2749     case STMT_OMP_PARALLEL_FOR_DIRECTIVE: {
2750       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2751       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2752       S = OMPParallelForDirective::CreateEmpty(Context, NumClauses,
2753                                                CollapsedNum, Empty);
2754       break;
2755     }
2756 
2757     case STMT_OMP_PARALLEL_FOR_SIMD_DIRECTIVE: {
2758       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2759       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2760       S = OMPParallelForSimdDirective::CreateEmpty(Context, NumClauses,
2761                                                    CollapsedNum, Empty);
2762       break;
2763     }
2764 
2765     case STMT_OMP_PARALLEL_SECTIONS_DIRECTIVE:
2766       S = OMPParallelSectionsDirective::CreateEmpty(
2767           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2768       break;
2769 
2770     case STMT_OMP_TASK_DIRECTIVE:
2771       S = OMPTaskDirective::CreateEmpty(
2772           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2773       break;
2774 
2775     case STMT_OMP_TASKYIELD_DIRECTIVE:
2776       S = OMPTaskyieldDirective::CreateEmpty(Context, Empty);
2777       break;
2778 
2779     case STMT_OMP_BARRIER_DIRECTIVE:
2780       S = OMPBarrierDirective::CreateEmpty(Context, Empty);
2781       break;
2782 
2783     case STMT_OMP_TASKWAIT_DIRECTIVE:
2784       S = OMPTaskwaitDirective::CreateEmpty(Context, Empty);
2785       break;
2786 
2787     case STMT_OMP_TASKGROUP_DIRECTIVE:
2788       S = OMPTaskgroupDirective::CreateEmpty(
2789           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2790       break;
2791 
2792     case STMT_OMP_FLUSH_DIRECTIVE:
2793       S = OMPFlushDirective::CreateEmpty(
2794           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2795       break;
2796 
2797     case STMT_OMP_ORDERED_DIRECTIVE:
2798       S = OMPOrderedDirective::CreateEmpty(
2799           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2800       break;
2801 
2802     case STMT_OMP_ATOMIC_DIRECTIVE:
2803       S = OMPAtomicDirective::CreateEmpty(
2804           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2805       break;
2806 
2807     case STMT_OMP_TARGET_DIRECTIVE:
2808       S = OMPTargetDirective::CreateEmpty(
2809           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2810       break;
2811 
2812     case STMT_OMP_TARGET_DATA_DIRECTIVE:
2813       S = OMPTargetDataDirective::CreateEmpty(
2814           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2815       break;
2816 
2817     case STMT_OMP_TARGET_ENTER_DATA_DIRECTIVE:
2818       S = OMPTargetEnterDataDirective::CreateEmpty(
2819           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2820       break;
2821 
2822     case STMT_OMP_TARGET_EXIT_DATA_DIRECTIVE:
2823       S = OMPTargetExitDataDirective::CreateEmpty(
2824           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2825       break;
2826 
2827     case STMT_OMP_TARGET_PARALLEL_DIRECTIVE:
2828       S = OMPTargetParallelDirective::CreateEmpty(
2829           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2830       break;
2831 
2832     case STMT_OMP_TARGET_PARALLEL_FOR_DIRECTIVE: {
2833       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2834       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2835       S = OMPTargetParallelForDirective::CreateEmpty(Context, NumClauses,
2836                                                      CollapsedNum, Empty);
2837       break;
2838     }
2839 
2840     case STMT_OMP_TARGET_UPDATE_DIRECTIVE:
2841       S = OMPTargetUpdateDirective::CreateEmpty(
2842           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2843       break;
2844 
2845     case STMT_OMP_TEAMS_DIRECTIVE:
2846       S = OMPTeamsDirective::CreateEmpty(
2847           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2848       break;
2849 
2850     case STMT_OMP_CANCELLATION_POINT_DIRECTIVE:
2851       S = OMPCancellationPointDirective::CreateEmpty(Context, Empty);
2852       break;
2853 
2854     case STMT_OMP_CANCEL_DIRECTIVE:
2855       S = OMPCancelDirective::CreateEmpty(
2856           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2857       break;
2858 
2859     case STMT_OMP_TASKLOOP_DIRECTIVE: {
2860       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2861       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2862       S = OMPTaskLoopDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2863                                             Empty);
2864       break;
2865     }
2866 
2867     case STMT_OMP_TASKLOOP_SIMD_DIRECTIVE: {
2868       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2869       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2870       S = OMPTaskLoopSimdDirective::CreateEmpty(Context, NumClauses,
2871                                                 CollapsedNum, Empty);
2872       break;
2873     }
2874 
2875     case STMT_OMP_DISTRIBUTE_DIRECTIVE: {
2876       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2877       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2878       S = OMPDistributeDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2879                                               Empty);
2880       break;
2881     }
2882 
2883     case STMT_OMP_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
2884       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2885       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2886       S = OMPDistributeParallelForDirective::CreateEmpty(Context, NumClauses,
2887                                                          CollapsedNum, Empty);
2888       break;
2889     }
2890 
2891     case STMT_OMP_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
2892       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2893       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2894       S = OMPDistributeParallelForSimdDirective::CreateEmpty(Context, NumClauses,
2895                                                              CollapsedNum,
2896                                                              Empty);
2897       break;
2898     }
2899 
2900     case STMT_OMP_DISTRIBUTE_SIMD_DIRECTIVE: {
2901       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2902       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2903       S = OMPDistributeSimdDirective::CreateEmpty(Context, NumClauses,
2904                                                   CollapsedNum, Empty);
2905       break;
2906     }
2907 
2908     case STMT_OMP_TARGET_PARALLEL_FOR_SIMD_DIRECTIVE: {
2909       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2910       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2911       S = OMPTargetParallelForSimdDirective::CreateEmpty(Context, NumClauses,
2912                                                          CollapsedNum, Empty);
2913       break;
2914     }
2915 
2916     case STMT_OMP_TARGET_SIMD_DIRECTIVE: {
2917       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2918       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2919       S = OMPTargetSimdDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2920                                               Empty);
2921       break;
2922     }
2923 
2924      case STMT_OMP_TEAMS_DISTRIBUTE_DIRECTIVE: {
2925       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2926       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2927       S = OMPTeamsDistributeDirective::CreateEmpty(Context, NumClauses,
2928                                                    CollapsedNum, Empty);
2929       break;
2930     }
2931 
2932     case STMT_OMP_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE: {
2933       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2934       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2935       S = OMPTeamsDistributeSimdDirective::CreateEmpty(Context, NumClauses,
2936                                                        CollapsedNum, Empty);
2937       break;
2938     }
2939 
2940     case STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
2941       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2942       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2943       S = OMPTeamsDistributeParallelForSimdDirective::CreateEmpty(
2944           Context, NumClauses, CollapsedNum, Empty);
2945       break;
2946     }
2947 
2948     case STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
2949       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2950       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2951       S = OMPTeamsDistributeParallelForDirective::CreateEmpty(
2952           Context, NumClauses, CollapsedNum, Empty);
2953       break;
2954     }
2955 
2956     case STMT_OMP_TARGET_TEAMS_DIRECTIVE:
2957       S = OMPTargetTeamsDirective::CreateEmpty(
2958           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2959       break;
2960 
2961     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_DIRECTIVE: {
2962       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2963       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2964       S = OMPTargetTeamsDistributeDirective::CreateEmpty(Context, NumClauses,
2965                                                          CollapsedNum, Empty);
2966       break;
2967     }
2968 
2969     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
2970       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2971       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2972       S = OMPTargetTeamsDistributeParallelForDirective::CreateEmpty(
2973           Context, NumClauses, CollapsedNum, Empty);
2974       break;
2975     }
2976 
2977     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
2978       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2979       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2980       S = OMPTargetTeamsDistributeParallelForSimdDirective::CreateEmpty(
2981           Context, NumClauses, CollapsedNum, Empty);
2982       break;
2983     }
2984 
2985     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE: {
2986       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2987       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2988       S = OMPTargetTeamsDistributeSimdDirective::CreateEmpty(
2989           Context, NumClauses, CollapsedNum, Empty);
2990       break;
2991     }
2992 
2993     case EXPR_CXX_OPERATOR_CALL:
2994       S = new (Context) CXXOperatorCallExpr(Context, Empty);
2995       break;
2996 
2997     case EXPR_CXX_MEMBER_CALL:
2998       S = new (Context) CXXMemberCallExpr(Context, Empty);
2999       break;
3000 
3001     case EXPR_CXX_CONSTRUCT:
3002       S = new (Context) CXXConstructExpr(Empty);
3003       break;
3004 
3005     case EXPR_CXX_INHERITED_CTOR_INIT:
3006       S = new (Context) CXXInheritedCtorInitExpr(Empty);
3007       break;
3008 
3009     case EXPR_CXX_TEMPORARY_OBJECT:
3010       S = new (Context) CXXTemporaryObjectExpr(Empty);
3011       break;
3012 
3013     case EXPR_CXX_STATIC_CAST:
3014       S = CXXStaticCastExpr::CreateEmpty(Context,
3015                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3016       break;
3017 
3018     case EXPR_CXX_DYNAMIC_CAST:
3019       S = CXXDynamicCastExpr::CreateEmpty(Context,
3020                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3021       break;
3022 
3023     case EXPR_CXX_REINTERPRET_CAST:
3024       S = CXXReinterpretCastExpr::CreateEmpty(Context,
3025                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3026       break;
3027 
3028     case EXPR_CXX_CONST_CAST:
3029       S = CXXConstCastExpr::CreateEmpty(Context);
3030       break;
3031 
3032     case EXPR_CXX_FUNCTIONAL_CAST:
3033       S = CXXFunctionalCastExpr::CreateEmpty(Context,
3034                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3035       break;
3036 
3037     case EXPR_USER_DEFINED_LITERAL:
3038       S = new (Context) UserDefinedLiteral(Context, Empty);
3039       break;
3040 
3041     case EXPR_CXX_STD_INITIALIZER_LIST:
3042       S = new (Context) CXXStdInitializerListExpr(Empty);
3043       break;
3044 
3045     case EXPR_CXX_BOOL_LITERAL:
3046       S = new (Context) CXXBoolLiteralExpr(Empty);
3047       break;
3048 
3049     case EXPR_CXX_NULL_PTR_LITERAL:
3050       S = new (Context) CXXNullPtrLiteralExpr(Empty);
3051       break;
3052 
3053     case EXPR_CXX_TYPEID_EXPR:
3054       S = new (Context) CXXTypeidExpr(Empty, true);
3055       break;
3056 
3057     case EXPR_CXX_TYPEID_TYPE:
3058       S = new (Context) CXXTypeidExpr(Empty, false);
3059       break;
3060 
3061     case EXPR_CXX_UUIDOF_EXPR:
3062       S = new (Context) CXXUuidofExpr(Empty, true);
3063       break;
3064 
3065     case EXPR_CXX_PROPERTY_REF_EXPR:
3066       S = new (Context) MSPropertyRefExpr(Empty);
3067       break;
3068 
3069     case EXPR_CXX_PROPERTY_SUBSCRIPT_EXPR:
3070       S = new (Context) MSPropertySubscriptExpr(Empty);
3071       break;
3072 
3073     case EXPR_CXX_UUIDOF_TYPE:
3074       S = new (Context) CXXUuidofExpr(Empty, false);
3075       break;
3076 
3077     case EXPR_CXX_THIS:
3078       S = new (Context) CXXThisExpr(Empty);
3079       break;
3080 
3081     case EXPR_CXX_THROW:
3082       S = new (Context) CXXThrowExpr(Empty);
3083       break;
3084 
3085     case EXPR_CXX_DEFAULT_ARG:
3086       S = new (Context) CXXDefaultArgExpr(Empty);
3087       break;
3088 
3089     case EXPR_CXX_DEFAULT_INIT:
3090       S = new (Context) CXXDefaultInitExpr(Empty);
3091       break;
3092 
3093     case EXPR_CXX_BIND_TEMPORARY:
3094       S = new (Context) CXXBindTemporaryExpr(Empty);
3095       break;
3096 
3097     case EXPR_CXX_SCALAR_VALUE_INIT:
3098       S = new (Context) CXXScalarValueInitExpr(Empty);
3099       break;
3100 
3101     case EXPR_CXX_NEW:
3102       S = new (Context) CXXNewExpr(Empty);
3103       break;
3104 
3105     case EXPR_CXX_DELETE:
3106       S = new (Context) CXXDeleteExpr(Empty);
3107       break;
3108 
3109     case EXPR_CXX_PSEUDO_DESTRUCTOR:
3110       S = new (Context) CXXPseudoDestructorExpr(Empty);
3111       break;
3112 
3113     case EXPR_EXPR_WITH_CLEANUPS:
3114       S = ExprWithCleanups::Create(Context, Empty,
3115                                    Record[ASTStmtReader::NumExprFields]);
3116       break;
3117 
3118     case EXPR_CXX_DEPENDENT_SCOPE_MEMBER:
3119       S = CXXDependentScopeMemberExpr::CreateEmpty(Context,
3120          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3121                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
3122                                    ? Record[ASTStmtReader::NumExprFields + 1]
3123                                    : 0);
3124       break;
3125 
3126     case EXPR_CXX_DEPENDENT_SCOPE_DECL_REF:
3127       S = DependentScopeDeclRefExpr::CreateEmpty(Context,
3128          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3129                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
3130                                    ? Record[ASTStmtReader::NumExprFields + 1]
3131                                    : 0);
3132       break;
3133 
3134     case EXPR_CXX_UNRESOLVED_CONSTRUCT:
3135       S = CXXUnresolvedConstructExpr::CreateEmpty(Context,
3136                               /*NumArgs=*/Record[ASTStmtReader::NumExprFields]);
3137       break;
3138 
3139     case EXPR_CXX_UNRESOLVED_MEMBER:
3140       S = UnresolvedMemberExpr::CreateEmpty(Context,
3141          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3142                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
3143                                    ? Record[ASTStmtReader::NumExprFields + 1]
3144                                    : 0);
3145       break;
3146 
3147     case EXPR_CXX_UNRESOLVED_LOOKUP:
3148       S = UnresolvedLookupExpr::CreateEmpty(Context,
3149          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3150                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
3151                                    ? Record[ASTStmtReader::NumExprFields + 1]
3152                                    : 0);
3153       break;
3154 
3155     case EXPR_TYPE_TRAIT:
3156       S = TypeTraitExpr::CreateDeserialized(Context,
3157             Record[ASTStmtReader::NumExprFields]);
3158       break;
3159 
3160     case EXPR_ARRAY_TYPE_TRAIT:
3161       S = new (Context) ArrayTypeTraitExpr(Empty);
3162       break;
3163 
3164     case EXPR_CXX_EXPRESSION_TRAIT:
3165       S = new (Context) ExpressionTraitExpr(Empty);
3166       break;
3167 
3168     case EXPR_CXX_NOEXCEPT:
3169       S = new (Context) CXXNoexceptExpr(Empty);
3170       break;
3171 
3172     case EXPR_PACK_EXPANSION:
3173       S = new (Context) PackExpansionExpr(Empty);
3174       break;
3175 
3176     case EXPR_SIZEOF_PACK:
3177       S = SizeOfPackExpr::CreateDeserialized(
3178               Context,
3179               /*NumPartialArgs=*/Record[ASTStmtReader::NumExprFields]);
3180       break;
3181 
3182     case EXPR_SUBST_NON_TYPE_TEMPLATE_PARM:
3183       S = new (Context) SubstNonTypeTemplateParmExpr(Empty);
3184       break;
3185 
3186     case EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK:
3187       S = new (Context) SubstNonTypeTemplateParmPackExpr(Empty);
3188       break;
3189 
3190     case EXPR_FUNCTION_PARM_PACK:
3191       S = FunctionParmPackExpr::CreateEmpty(Context,
3192                                           Record[ASTStmtReader::NumExprFields]);
3193       break;
3194 
3195     case EXPR_MATERIALIZE_TEMPORARY:
3196       S = new (Context) MaterializeTemporaryExpr(Empty);
3197       break;
3198 
3199     case EXPR_CXX_FOLD:
3200       S = new (Context) CXXFoldExpr(Empty);
3201       break;
3202 
3203     case EXPR_OPAQUE_VALUE:
3204       S = new (Context) OpaqueValueExpr(Empty);
3205       break;
3206 
3207     case EXPR_CUDA_KERNEL_CALL:
3208       S = new (Context) CUDAKernelCallExpr(Context, Empty);
3209       break;
3210 
3211     case EXPR_ASTYPE:
3212       S = new (Context) AsTypeExpr(Empty);
3213       break;
3214 
3215     case EXPR_PSEUDO_OBJECT: {
3216       unsigned numSemanticExprs = Record[ASTStmtReader::NumExprFields];
3217       S = PseudoObjectExpr::Create(Context, Empty, numSemanticExprs);
3218       break;
3219     }
3220 
3221     case EXPR_ATOMIC:
3222       S = new (Context) AtomicExpr(Empty);
3223       break;
3224 
3225     case EXPR_LAMBDA: {
3226       unsigned NumCaptures = Record[ASTStmtReader::NumExprFields];
3227       S = LambdaExpr::CreateDeserialized(Context, NumCaptures);
3228       break;
3229     }
3230 
3231     case STMT_COROUTINE_BODY: {
3232       unsigned NumParams = Record[ASTStmtReader::NumStmtFields];
3233       S = CoroutineBodyStmt::Create(Context, Empty, NumParams);
3234       break;
3235     }
3236 
3237     case STMT_CORETURN:
3238       S = new (Context) CoreturnStmt(Empty);
3239       break;
3240 
3241     case EXPR_COAWAIT:
3242       S = new (Context) CoawaitExpr(Empty);
3243       break;
3244 
3245     case EXPR_COYIELD:
3246       S = new (Context) CoyieldExpr(Empty);
3247       break;
3248 
3249     case EXPR_DEPENDENT_COAWAIT:
3250       S = new (Context) DependentCoawaitExpr(Empty);
3251       break;
3252     }
3253 
3254     // We hit a STMT_STOP, so we're done with this expression.
3255     if (Finished)
3256       break;
3257 
3258     ++NumStatementsRead;
3259 
3260     if (S && !IsStmtReference) {
3261       Reader.Visit(S);
3262       StmtEntries[Cursor.GetCurrentBitNo()] = S;
3263     }
3264 
3265     assert(Record.getIdx() == Record.size() &&
3266            "Invalid deserialization of statement");
3267     StmtStack.push_back(S);
3268   }
3269 Done:
3270   assert(StmtStack.size() > PrevNumStmts && "Read too many sub-stmts!");
3271   assert(StmtStack.size() == PrevNumStmts + 1 && "Extra expressions on stack!");
3272   return StmtStack.pop_back_val();
3273 }
3274