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->setRangeStmt(Record.readSubStmt());
1274   S->setBeginStmt(Record.readSubStmt());
1275   S->setEndStmt(Record.readSubStmt());
1276   S->setCond(Record.readSubExpr());
1277   S->setInc(Record.readSubExpr());
1278   S->setLoopVarStmt(Record.readSubStmt());
1279   S->setBody(Record.readSubStmt());
1280 }
1281 
1282 void ASTStmtReader::VisitMSDependentExistsStmt(MSDependentExistsStmt *S) {
1283   VisitStmt(S);
1284   S->KeywordLoc = ReadSourceLocation();
1285   S->IsIfExists = Record.readInt();
1286   S->QualifierLoc = Record.readNestedNameSpecifierLoc();
1287   ReadDeclarationNameInfo(S->NameInfo);
1288   S->SubStmt = Record.readSubStmt();
1289 }
1290 
1291 void ASTStmtReader::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
1292   VisitCallExpr(E);
1293   E->Operator = (OverloadedOperatorKind)Record.readInt();
1294   E->Range = Record.readSourceRange();
1295   E->setFPFeatures(FPOptions(Record.readInt()));
1296 }
1297 
1298 void ASTStmtReader::VisitCXXConstructExpr(CXXConstructExpr *E) {
1299   VisitExpr(E);
1300   E->NumArgs = Record.readInt();
1301   if (E->NumArgs)
1302     E->Args = new (Record.getContext()) Stmt*[E->NumArgs];
1303   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1304     E->setArg(I, Record.readSubExpr());
1305   E->setConstructor(ReadDeclAs<CXXConstructorDecl>());
1306   E->setLocation(ReadSourceLocation());
1307   E->setElidable(Record.readInt());
1308   E->setHadMultipleCandidates(Record.readInt());
1309   E->setListInitialization(Record.readInt());
1310   E->setStdInitListInitialization(Record.readInt());
1311   E->setRequiresZeroInitialization(Record.readInt());
1312   E->setConstructionKind((CXXConstructExpr::ConstructionKind)Record.readInt());
1313   E->ParenOrBraceRange = ReadSourceRange();
1314 }
1315 
1316 void ASTStmtReader::VisitCXXInheritedCtorInitExpr(CXXInheritedCtorInitExpr *E) {
1317   VisitExpr(E);
1318   E->Constructor = ReadDeclAs<CXXConstructorDecl>();
1319   E->Loc = ReadSourceLocation();
1320   E->ConstructsVirtualBase = Record.readInt();
1321   E->InheritedFromVirtualBase = Record.readInt();
1322 }
1323 
1324 void ASTStmtReader::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E) {
1325   VisitCXXConstructExpr(E);
1326   E->Type = GetTypeSourceInfo();
1327 }
1328 
1329 void ASTStmtReader::VisitLambdaExpr(LambdaExpr *E) {
1330   VisitExpr(E);
1331   unsigned NumCaptures = Record.readInt();
1332   assert(NumCaptures == E->NumCaptures);(void)NumCaptures;
1333   E->IntroducerRange = ReadSourceRange();
1334   E->CaptureDefault = static_cast<LambdaCaptureDefault>(Record.readInt());
1335   E->CaptureDefaultLoc = ReadSourceLocation();
1336   E->ExplicitParams = Record.readInt();
1337   E->ExplicitResultType = Record.readInt();
1338   E->ClosingBrace = ReadSourceLocation();
1339 
1340   // Read capture initializers.
1341   for (LambdaExpr::capture_init_iterator C = E->capture_init_begin(),
1342                                       CEnd = E->capture_init_end();
1343        C != CEnd; ++C)
1344     *C = Record.readSubExpr();
1345 }
1346 
1347 void
1348 ASTStmtReader::VisitCXXStdInitializerListExpr(CXXStdInitializerListExpr *E) {
1349   VisitExpr(E);
1350   E->SubExpr = Record.readSubExpr();
1351 }
1352 
1353 void ASTStmtReader::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
1354   VisitExplicitCastExpr(E);
1355   SourceRange R = ReadSourceRange();
1356   E->Loc = R.getBegin();
1357   E->RParenLoc = R.getEnd();
1358   R = ReadSourceRange();
1359   E->AngleBrackets = R;
1360 }
1361 
1362 void ASTStmtReader::VisitCXXStaticCastExpr(CXXStaticCastExpr *E) {
1363   return VisitCXXNamedCastExpr(E);
1364 }
1365 
1366 void ASTStmtReader::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E) {
1367   return VisitCXXNamedCastExpr(E);
1368 }
1369 
1370 void ASTStmtReader::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E) {
1371   return VisitCXXNamedCastExpr(E);
1372 }
1373 
1374 void ASTStmtReader::VisitCXXConstCastExpr(CXXConstCastExpr *E) {
1375   return VisitCXXNamedCastExpr(E);
1376 }
1377 
1378 void ASTStmtReader::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E) {
1379   VisitExplicitCastExpr(E);
1380   E->setLParenLoc(ReadSourceLocation());
1381   E->setRParenLoc(ReadSourceLocation());
1382 }
1383 
1384 void ASTStmtReader::VisitUserDefinedLiteral(UserDefinedLiteral *E) {
1385   VisitCallExpr(E);
1386   E->UDSuffixLoc = ReadSourceLocation();
1387 }
1388 
1389 void ASTStmtReader::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
1390   VisitExpr(E);
1391   E->setValue(Record.readInt());
1392   E->setLocation(ReadSourceLocation());
1393 }
1394 
1395 void ASTStmtReader::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E) {
1396   VisitExpr(E);
1397   E->setLocation(ReadSourceLocation());
1398 }
1399 
1400 void ASTStmtReader::VisitCXXTypeidExpr(CXXTypeidExpr *E) {
1401   VisitExpr(E);
1402   E->setSourceRange(ReadSourceRange());
1403   if (E->isTypeOperand()) { // typeid(int)
1404     E->setTypeOperandSourceInfo(
1405         GetTypeSourceInfo());
1406     return;
1407   }
1408 
1409   // typeid(42+2)
1410   E->setExprOperand(Record.readSubExpr());
1411 }
1412 
1413 void ASTStmtReader::VisitCXXThisExpr(CXXThisExpr *E) {
1414   VisitExpr(E);
1415   E->setLocation(ReadSourceLocation());
1416   E->setImplicit(Record.readInt());
1417 }
1418 
1419 void ASTStmtReader::VisitCXXThrowExpr(CXXThrowExpr *E) {
1420   VisitExpr(E);
1421   E->ThrowLoc = ReadSourceLocation();
1422   E->Op = Record.readSubExpr();
1423   E->IsThrownVariableInScope = Record.readInt();
1424 }
1425 
1426 void ASTStmtReader::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
1427   VisitExpr(E);
1428   E->Param = ReadDeclAs<ParmVarDecl>();
1429   E->Loc = ReadSourceLocation();
1430 }
1431 
1432 void ASTStmtReader::VisitCXXDefaultInitExpr(CXXDefaultInitExpr *E) {
1433   VisitExpr(E);
1434   E->Field = ReadDeclAs<FieldDecl>();
1435   E->Loc = ReadSourceLocation();
1436 }
1437 
1438 void ASTStmtReader::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
1439   VisitExpr(E);
1440   E->setTemporary(Record.readCXXTemporary());
1441   E->setSubExpr(Record.readSubExpr());
1442 }
1443 
1444 void ASTStmtReader::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E) {
1445   VisitExpr(E);
1446   E->TypeInfo = GetTypeSourceInfo();
1447   E->RParenLoc = ReadSourceLocation();
1448 }
1449 
1450 void ASTStmtReader::VisitCXXNewExpr(CXXNewExpr *E) {
1451   VisitExpr(E);
1452   E->GlobalNew = Record.readInt();
1453   bool isArray = Record.readInt();
1454   E->PassAlignment = Record.readInt();
1455   E->UsualArrayDeleteWantsSize = Record.readInt();
1456   unsigned NumPlacementArgs = Record.readInt();
1457   E->StoredInitializationStyle = Record.readInt();
1458   E->setOperatorNew(ReadDeclAs<FunctionDecl>());
1459   E->setOperatorDelete(ReadDeclAs<FunctionDecl>());
1460   E->AllocatedTypeInfo = GetTypeSourceInfo();
1461   E->TypeIdParens = ReadSourceRange();
1462   E->Range = ReadSourceRange();
1463   E->DirectInitRange = ReadSourceRange();
1464 
1465   E->AllocateArgsArray(Record.getContext(), isArray, NumPlacementArgs,
1466                        E->StoredInitializationStyle != 0);
1467 
1468   // Install all the subexpressions.
1469   for (CXXNewExpr::raw_arg_iterator I = E->raw_arg_begin(),e = E->raw_arg_end();
1470        I != e; ++I)
1471     *I = Record.readSubStmt();
1472 }
1473 
1474 void ASTStmtReader::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
1475   VisitExpr(E);
1476   E->GlobalDelete = Record.readInt();
1477   E->ArrayForm = Record.readInt();
1478   E->ArrayFormAsWritten = Record.readInt();
1479   E->UsualArrayDeleteWantsSize = Record.readInt();
1480   E->OperatorDelete = ReadDeclAs<FunctionDecl>();
1481   E->Argument = Record.readSubExpr();
1482   E->Loc = ReadSourceLocation();
1483 }
1484 
1485 void ASTStmtReader::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) {
1486   VisitExpr(E);
1487 
1488   E->Base = Record.readSubExpr();
1489   E->IsArrow = Record.readInt();
1490   E->OperatorLoc = ReadSourceLocation();
1491   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1492   E->ScopeType = GetTypeSourceInfo();
1493   E->ColonColonLoc = ReadSourceLocation();
1494   E->TildeLoc = ReadSourceLocation();
1495 
1496   IdentifierInfo *II = Record.getIdentifierInfo();
1497   if (II)
1498     E->setDestroyedType(II, ReadSourceLocation());
1499   else
1500     E->setDestroyedType(GetTypeSourceInfo());
1501 }
1502 
1503 void ASTStmtReader::VisitExprWithCleanups(ExprWithCleanups *E) {
1504   VisitExpr(E);
1505 
1506   unsigned NumObjects = Record.readInt();
1507   assert(NumObjects == E->getNumObjects());
1508   for (unsigned i = 0; i != NumObjects; ++i)
1509     E->getTrailingObjects<BlockDecl *>()[i] =
1510         ReadDeclAs<BlockDecl>();
1511 
1512   E->ExprWithCleanupsBits.CleanupsHaveSideEffects = Record.readInt();
1513   E->SubExpr = Record.readSubExpr();
1514 }
1515 
1516 void
1517 ASTStmtReader::VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E){
1518   VisitExpr(E);
1519 
1520   if (Record.readInt()) // HasTemplateKWAndArgsInfo
1521     ReadTemplateKWAndArgsInfo(
1522         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
1523         E->getTrailingObjects<TemplateArgumentLoc>(),
1524         /*NumTemplateArgs=*/Record.readInt());
1525 
1526   E->Base = Record.readSubExpr();
1527   E->BaseType = Record.readType();
1528   E->IsArrow = Record.readInt();
1529   E->OperatorLoc = ReadSourceLocation();
1530   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1531   E->FirstQualifierFoundInScope = ReadDeclAs<NamedDecl>();
1532   ReadDeclarationNameInfo(E->MemberNameInfo);
1533 }
1534 
1535 void
1536 ASTStmtReader::VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E) {
1537   VisitExpr(E);
1538 
1539   if (Record.readInt()) // HasTemplateKWAndArgsInfo
1540     ReadTemplateKWAndArgsInfo(
1541         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
1542         E->getTrailingObjects<TemplateArgumentLoc>(),
1543         /*NumTemplateArgs=*/Record.readInt());
1544 
1545   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1546   ReadDeclarationNameInfo(E->NameInfo);
1547 }
1548 
1549 void
1550 ASTStmtReader::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E) {
1551   VisitExpr(E);
1552   assert(Record.peekInt() == E->arg_size() &&
1553          "Read wrong record during creation ?");
1554   Record.skipInts(1);
1555   for (unsigned I = 0, N = E->arg_size(); I != N; ++I)
1556     E->setArg(I, Record.readSubExpr());
1557   E->Type = GetTypeSourceInfo();
1558   E->setLParenLoc(ReadSourceLocation());
1559   E->setRParenLoc(ReadSourceLocation());
1560 }
1561 
1562 void ASTStmtReader::VisitOverloadExpr(OverloadExpr *E) {
1563   VisitExpr(E);
1564 
1565   if (Record.readInt()) // HasTemplateKWAndArgsInfo
1566     ReadTemplateKWAndArgsInfo(*E->getTrailingASTTemplateKWAndArgsInfo(),
1567                               E->getTrailingTemplateArgumentLoc(),
1568                               /*NumTemplateArgs=*/Record.readInt());
1569 
1570   unsigned NumDecls = Record.readInt();
1571   UnresolvedSet<8> Decls;
1572   for (unsigned i = 0; i != NumDecls; ++i) {
1573     auto *D = ReadDeclAs<NamedDecl>();
1574     auto AS = (AccessSpecifier)Record.readInt();
1575     Decls.addDecl(D, AS);
1576   }
1577   E->initializeResults(Record.getContext(), Decls.begin(), Decls.end());
1578 
1579   ReadDeclarationNameInfo(E->NameInfo);
1580   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1581 }
1582 
1583 void ASTStmtReader::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E) {
1584   VisitOverloadExpr(E);
1585   E->IsArrow = Record.readInt();
1586   E->HasUnresolvedUsing = Record.readInt();
1587   E->Base = Record.readSubExpr();
1588   E->BaseType = Record.readType();
1589   E->OperatorLoc = ReadSourceLocation();
1590 }
1591 
1592 void ASTStmtReader::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E) {
1593   VisitOverloadExpr(E);
1594   E->RequiresADL = Record.readInt();
1595   E->Overloaded = Record.readInt();
1596   E->NamingClass = ReadDeclAs<CXXRecordDecl>();
1597 }
1598 
1599 void ASTStmtReader::VisitTypeTraitExpr(TypeTraitExpr *E) {
1600   VisitExpr(E);
1601   E->TypeTraitExprBits.NumArgs = Record.readInt();
1602   E->TypeTraitExprBits.Kind = Record.readInt();
1603   E->TypeTraitExprBits.Value = Record.readInt();
1604   SourceRange Range = ReadSourceRange();
1605   E->Loc = Range.getBegin();
1606   E->RParenLoc = Range.getEnd();
1607 
1608   auto **Args = E->getTrailingObjects<TypeSourceInfo *>();
1609   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1610     Args[I] = GetTypeSourceInfo();
1611 }
1612 
1613 void ASTStmtReader::VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E) {
1614   VisitExpr(E);
1615   E->ATT = (ArrayTypeTrait)Record.readInt();
1616   E->Value = (unsigned int)Record.readInt();
1617   SourceRange Range = ReadSourceRange();
1618   E->Loc = Range.getBegin();
1619   E->RParen = Range.getEnd();
1620   E->QueriedType = GetTypeSourceInfo();
1621   E->Dimension = Record.readSubExpr();
1622 }
1623 
1624 void ASTStmtReader::VisitExpressionTraitExpr(ExpressionTraitExpr *E) {
1625   VisitExpr(E);
1626   E->ET = (ExpressionTrait)Record.readInt();
1627   E->Value = (bool)Record.readInt();
1628   SourceRange Range = ReadSourceRange();
1629   E->QueriedExpression = Record.readSubExpr();
1630   E->Loc = Range.getBegin();
1631   E->RParen = Range.getEnd();
1632 }
1633 
1634 void ASTStmtReader::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) {
1635   VisitExpr(E);
1636   E->Value = (bool)Record.readInt();
1637   E->Range = ReadSourceRange();
1638   E->Operand = Record.readSubExpr();
1639 }
1640 
1641 void ASTStmtReader::VisitPackExpansionExpr(PackExpansionExpr *E) {
1642   VisitExpr(E);
1643   E->EllipsisLoc = ReadSourceLocation();
1644   E->NumExpansions = Record.readInt();
1645   E->Pattern = Record.readSubExpr();
1646 }
1647 
1648 void ASTStmtReader::VisitSizeOfPackExpr(SizeOfPackExpr *E) {
1649   VisitExpr(E);
1650   unsigned NumPartialArgs = Record.readInt();
1651   E->OperatorLoc = ReadSourceLocation();
1652   E->PackLoc = ReadSourceLocation();
1653   E->RParenLoc = ReadSourceLocation();
1654   E->Pack = Record.readDeclAs<NamedDecl>();
1655   if (E->isPartiallySubstituted()) {
1656     assert(E->Length == NumPartialArgs);
1657     for (auto *I = E->getTrailingObjects<TemplateArgument>(),
1658               *E = I + NumPartialArgs;
1659          I != E; ++I)
1660       new (I) TemplateArgument(Record.readTemplateArgument());
1661   } else if (!E->isValueDependent()) {
1662     E->Length = Record.readInt();
1663   }
1664 }
1665 
1666 void ASTStmtReader::VisitSubstNonTypeTemplateParmExpr(
1667                                               SubstNonTypeTemplateParmExpr *E) {
1668   VisitExpr(E);
1669   E->Param = ReadDeclAs<NonTypeTemplateParmDecl>();
1670   E->NameLoc = ReadSourceLocation();
1671   E->Replacement = Record.readSubExpr();
1672 }
1673 
1674 void ASTStmtReader::VisitSubstNonTypeTemplateParmPackExpr(
1675                                           SubstNonTypeTemplateParmPackExpr *E) {
1676   VisitExpr(E);
1677   E->Param = ReadDeclAs<NonTypeTemplateParmDecl>();
1678   TemplateArgument ArgPack = Record.readTemplateArgument();
1679   if (ArgPack.getKind() != TemplateArgument::Pack)
1680     return;
1681 
1682   E->Arguments = ArgPack.pack_begin();
1683   E->NumArguments = ArgPack.pack_size();
1684   E->NameLoc = ReadSourceLocation();
1685 }
1686 
1687 void ASTStmtReader::VisitFunctionParmPackExpr(FunctionParmPackExpr *E) {
1688   VisitExpr(E);
1689   E->NumParameters = Record.readInt();
1690   E->ParamPack = ReadDeclAs<ParmVarDecl>();
1691   E->NameLoc = ReadSourceLocation();
1692   auto **Parms = E->getTrailingObjects<ParmVarDecl *>();
1693   for (unsigned i = 0, n = E->NumParameters; i != n; ++i)
1694     Parms[i] = ReadDeclAs<ParmVarDecl>();
1695 }
1696 
1697 void ASTStmtReader::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E) {
1698   VisitExpr(E);
1699   E->State = Record.readSubExpr();
1700   auto *VD = ReadDeclAs<ValueDecl>();
1701   unsigned ManglingNumber = Record.readInt();
1702   E->setExtendingDecl(VD, ManglingNumber);
1703 }
1704 
1705 void ASTStmtReader::VisitCXXFoldExpr(CXXFoldExpr *E) {
1706   VisitExpr(E);
1707   E->LParenLoc = ReadSourceLocation();
1708   E->EllipsisLoc = ReadSourceLocation();
1709   E->RParenLoc = ReadSourceLocation();
1710   E->SubExprs[0] = Record.readSubExpr();
1711   E->SubExprs[1] = Record.readSubExpr();
1712   E->Opcode = (BinaryOperatorKind)Record.readInt();
1713 }
1714 
1715 void ASTStmtReader::VisitOpaqueValueExpr(OpaqueValueExpr *E) {
1716   VisitExpr(E);
1717   E->SourceExpr = Record.readSubExpr();
1718   E->Loc = ReadSourceLocation();
1719   E->setIsUnique(Record.readInt());
1720 }
1721 
1722 void ASTStmtReader::VisitTypoExpr(TypoExpr *E) {
1723   llvm_unreachable("Cannot read TypoExpr nodes");
1724 }
1725 
1726 //===----------------------------------------------------------------------===//
1727 // Microsoft Expressions and Statements
1728 //===----------------------------------------------------------------------===//
1729 void ASTStmtReader::VisitMSPropertyRefExpr(MSPropertyRefExpr *E) {
1730   VisitExpr(E);
1731   E->IsArrow = (Record.readInt() != 0);
1732   E->BaseExpr = Record.readSubExpr();
1733   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1734   E->MemberLoc = ReadSourceLocation();
1735   E->TheDecl = ReadDeclAs<MSPropertyDecl>();
1736 }
1737 
1738 void ASTStmtReader::VisitMSPropertySubscriptExpr(MSPropertySubscriptExpr *E) {
1739   VisitExpr(E);
1740   E->setBase(Record.readSubExpr());
1741   E->setIdx(Record.readSubExpr());
1742   E->setRBracketLoc(ReadSourceLocation());
1743 }
1744 
1745 void ASTStmtReader::VisitCXXUuidofExpr(CXXUuidofExpr *E) {
1746   VisitExpr(E);
1747   E->setSourceRange(ReadSourceRange());
1748   std::string UuidStr = ReadString();
1749   E->setUuidStr(StringRef(UuidStr).copy(Record.getContext()));
1750   if (E->isTypeOperand()) { // __uuidof(ComType)
1751     E->setTypeOperandSourceInfo(
1752         GetTypeSourceInfo());
1753     return;
1754   }
1755 
1756   // __uuidof(expr)
1757   E->setExprOperand(Record.readSubExpr());
1758 }
1759 
1760 void ASTStmtReader::VisitSEHLeaveStmt(SEHLeaveStmt *S) {
1761   VisitStmt(S);
1762   S->setLeaveLoc(ReadSourceLocation());
1763 }
1764 
1765 void ASTStmtReader::VisitSEHExceptStmt(SEHExceptStmt *S) {
1766   VisitStmt(S);
1767   S->Loc = ReadSourceLocation();
1768   S->Children[SEHExceptStmt::FILTER_EXPR] = Record.readSubStmt();
1769   S->Children[SEHExceptStmt::BLOCK] = Record.readSubStmt();
1770 }
1771 
1772 void ASTStmtReader::VisitSEHFinallyStmt(SEHFinallyStmt *S) {
1773   VisitStmt(S);
1774   S->Loc = ReadSourceLocation();
1775   S->Block = Record.readSubStmt();
1776 }
1777 
1778 void ASTStmtReader::VisitSEHTryStmt(SEHTryStmt *S) {
1779   VisitStmt(S);
1780   S->IsCXXTry = Record.readInt();
1781   S->TryLoc = ReadSourceLocation();
1782   S->Children[SEHTryStmt::TRY] = Record.readSubStmt();
1783   S->Children[SEHTryStmt::HANDLER] = Record.readSubStmt();
1784 }
1785 
1786 //===----------------------------------------------------------------------===//
1787 // CUDA Expressions and Statements
1788 //===----------------------------------------------------------------------===//
1789 
1790 void ASTStmtReader::VisitCUDAKernelCallExpr(CUDAKernelCallExpr *E) {
1791   VisitCallExpr(E);
1792   E->setConfig(cast<CallExpr>(Record.readSubExpr()));
1793 }
1794 
1795 //===----------------------------------------------------------------------===//
1796 // OpenCL Expressions and Statements.
1797 //===----------------------------------------------------------------------===//
1798 void ASTStmtReader::VisitAsTypeExpr(AsTypeExpr *E) {
1799   VisitExpr(E);
1800   E->BuiltinLoc = ReadSourceLocation();
1801   E->RParenLoc = ReadSourceLocation();
1802   E->SrcExpr = Record.readSubExpr();
1803 }
1804 
1805 //===----------------------------------------------------------------------===//
1806 // OpenMP Directives.
1807 //===----------------------------------------------------------------------===//
1808 
1809 void ASTStmtReader::VisitOMPExecutableDirective(OMPExecutableDirective *E) {
1810   E->setLocStart(ReadSourceLocation());
1811   E->setLocEnd(ReadSourceLocation());
1812   OMPClauseReader ClauseReader(Record);
1813   SmallVector<OMPClause *, 5> Clauses;
1814   for (unsigned i = 0; i < E->getNumClauses(); ++i)
1815     Clauses.push_back(ClauseReader.readClause());
1816   E->setClauses(Clauses);
1817   if (E->hasAssociatedStmt())
1818     E->setAssociatedStmt(Record.readSubStmt());
1819 }
1820 
1821 void ASTStmtReader::VisitOMPLoopDirective(OMPLoopDirective *D) {
1822   VisitStmt(D);
1823   // Two fields (NumClauses and CollapsedNum) were read in ReadStmtFromStream.
1824   Record.skipInts(2);
1825   VisitOMPExecutableDirective(D);
1826   D->setIterationVariable(Record.readSubExpr());
1827   D->setLastIteration(Record.readSubExpr());
1828   D->setCalcLastIteration(Record.readSubExpr());
1829   D->setPreCond(Record.readSubExpr());
1830   D->setCond(Record.readSubExpr());
1831   D->setInit(Record.readSubExpr());
1832   D->setInc(Record.readSubExpr());
1833   D->setPreInits(Record.readSubStmt());
1834   if (isOpenMPWorksharingDirective(D->getDirectiveKind()) ||
1835       isOpenMPTaskLoopDirective(D->getDirectiveKind()) ||
1836       isOpenMPDistributeDirective(D->getDirectiveKind())) {
1837     D->setIsLastIterVariable(Record.readSubExpr());
1838     D->setLowerBoundVariable(Record.readSubExpr());
1839     D->setUpperBoundVariable(Record.readSubExpr());
1840     D->setStrideVariable(Record.readSubExpr());
1841     D->setEnsureUpperBound(Record.readSubExpr());
1842     D->setNextLowerBound(Record.readSubExpr());
1843     D->setNextUpperBound(Record.readSubExpr());
1844     D->setNumIterations(Record.readSubExpr());
1845   }
1846   if (isOpenMPLoopBoundSharingDirective(D->getDirectiveKind())) {
1847     D->setPrevLowerBoundVariable(Record.readSubExpr());
1848     D->setPrevUpperBoundVariable(Record.readSubExpr());
1849     D->setDistInc(Record.readSubExpr());
1850     D->setPrevEnsureUpperBound(Record.readSubExpr());
1851     D->setCombinedLowerBoundVariable(Record.readSubExpr());
1852     D->setCombinedUpperBoundVariable(Record.readSubExpr());
1853     D->setCombinedEnsureUpperBound(Record.readSubExpr());
1854     D->setCombinedInit(Record.readSubExpr());
1855     D->setCombinedCond(Record.readSubExpr());
1856     D->setCombinedNextLowerBound(Record.readSubExpr());
1857     D->setCombinedNextUpperBound(Record.readSubExpr());
1858   }
1859   SmallVector<Expr *, 4> Sub;
1860   unsigned CollapsedNum = D->getCollapsedNumber();
1861   Sub.reserve(CollapsedNum);
1862   for (unsigned i = 0; i < CollapsedNum; ++i)
1863     Sub.push_back(Record.readSubExpr());
1864   D->setCounters(Sub);
1865   Sub.clear();
1866   for (unsigned i = 0; i < CollapsedNum; ++i)
1867     Sub.push_back(Record.readSubExpr());
1868   D->setPrivateCounters(Sub);
1869   Sub.clear();
1870   for (unsigned i = 0; i < CollapsedNum; ++i)
1871     Sub.push_back(Record.readSubExpr());
1872   D->setInits(Sub);
1873   Sub.clear();
1874   for (unsigned i = 0; i < CollapsedNum; ++i)
1875     Sub.push_back(Record.readSubExpr());
1876   D->setUpdates(Sub);
1877   Sub.clear();
1878   for (unsigned i = 0; i < CollapsedNum; ++i)
1879     Sub.push_back(Record.readSubExpr());
1880   D->setFinals(Sub);
1881 }
1882 
1883 void ASTStmtReader::VisitOMPParallelDirective(OMPParallelDirective *D) {
1884   VisitStmt(D);
1885   // The NumClauses field was read in ReadStmtFromStream.
1886   Record.skipInts(1);
1887   VisitOMPExecutableDirective(D);
1888   D->setHasCancel(Record.readInt());
1889 }
1890 
1891 void ASTStmtReader::VisitOMPSimdDirective(OMPSimdDirective *D) {
1892   VisitOMPLoopDirective(D);
1893 }
1894 
1895 void ASTStmtReader::VisitOMPForDirective(OMPForDirective *D) {
1896   VisitOMPLoopDirective(D);
1897   D->setHasCancel(Record.readInt());
1898 }
1899 
1900 void ASTStmtReader::VisitOMPForSimdDirective(OMPForSimdDirective *D) {
1901   VisitOMPLoopDirective(D);
1902 }
1903 
1904 void ASTStmtReader::VisitOMPSectionsDirective(OMPSectionsDirective *D) {
1905   VisitStmt(D);
1906   // The NumClauses field was read in ReadStmtFromStream.
1907   Record.skipInts(1);
1908   VisitOMPExecutableDirective(D);
1909   D->setHasCancel(Record.readInt());
1910 }
1911 
1912 void ASTStmtReader::VisitOMPSectionDirective(OMPSectionDirective *D) {
1913   VisitStmt(D);
1914   VisitOMPExecutableDirective(D);
1915   D->setHasCancel(Record.readInt());
1916 }
1917 
1918 void ASTStmtReader::VisitOMPSingleDirective(OMPSingleDirective *D) {
1919   VisitStmt(D);
1920   // The NumClauses field was read in ReadStmtFromStream.
1921   Record.skipInts(1);
1922   VisitOMPExecutableDirective(D);
1923 }
1924 
1925 void ASTStmtReader::VisitOMPMasterDirective(OMPMasterDirective *D) {
1926   VisitStmt(D);
1927   VisitOMPExecutableDirective(D);
1928 }
1929 
1930 void ASTStmtReader::VisitOMPCriticalDirective(OMPCriticalDirective *D) {
1931   VisitStmt(D);
1932   // The NumClauses field was read in ReadStmtFromStream.
1933   Record.skipInts(1);
1934   VisitOMPExecutableDirective(D);
1935   ReadDeclarationNameInfo(D->DirName);
1936 }
1937 
1938 void ASTStmtReader::VisitOMPParallelForDirective(OMPParallelForDirective *D) {
1939   VisitOMPLoopDirective(D);
1940   D->setHasCancel(Record.readInt());
1941 }
1942 
1943 void ASTStmtReader::VisitOMPParallelForSimdDirective(
1944     OMPParallelForSimdDirective *D) {
1945   VisitOMPLoopDirective(D);
1946 }
1947 
1948 void ASTStmtReader::VisitOMPParallelSectionsDirective(
1949     OMPParallelSectionsDirective *D) {
1950   VisitStmt(D);
1951   // The NumClauses field was read in ReadStmtFromStream.
1952   Record.skipInts(1);
1953   VisitOMPExecutableDirective(D);
1954   D->setHasCancel(Record.readInt());
1955 }
1956 
1957 void ASTStmtReader::VisitOMPTaskDirective(OMPTaskDirective *D) {
1958   VisitStmt(D);
1959   // The NumClauses field was read in ReadStmtFromStream.
1960   Record.skipInts(1);
1961   VisitOMPExecutableDirective(D);
1962   D->setHasCancel(Record.readInt());
1963 }
1964 
1965 void ASTStmtReader::VisitOMPTaskyieldDirective(OMPTaskyieldDirective *D) {
1966   VisitStmt(D);
1967   VisitOMPExecutableDirective(D);
1968 }
1969 
1970 void ASTStmtReader::VisitOMPBarrierDirective(OMPBarrierDirective *D) {
1971   VisitStmt(D);
1972   VisitOMPExecutableDirective(D);
1973 }
1974 
1975 void ASTStmtReader::VisitOMPTaskwaitDirective(OMPTaskwaitDirective *D) {
1976   VisitStmt(D);
1977   VisitOMPExecutableDirective(D);
1978 }
1979 
1980 void ASTStmtReader::VisitOMPTaskgroupDirective(OMPTaskgroupDirective *D) {
1981   VisitStmt(D);
1982   // The NumClauses field was read in ReadStmtFromStream.
1983   Record.skipInts(1);
1984   VisitOMPExecutableDirective(D);
1985   D->setReductionRef(Record.readSubExpr());
1986 }
1987 
1988 void ASTStmtReader::VisitOMPFlushDirective(OMPFlushDirective *D) {
1989   VisitStmt(D);
1990   // The NumClauses field was read in ReadStmtFromStream.
1991   Record.skipInts(1);
1992   VisitOMPExecutableDirective(D);
1993 }
1994 
1995 void ASTStmtReader::VisitOMPOrderedDirective(OMPOrderedDirective *D) {
1996   VisitStmt(D);
1997   // The NumClauses field was read in ReadStmtFromStream.
1998   Record.skipInts(1);
1999   VisitOMPExecutableDirective(D);
2000 }
2001 
2002 void ASTStmtReader::VisitOMPAtomicDirective(OMPAtomicDirective *D) {
2003   VisitStmt(D);
2004   // The NumClauses field was read in ReadStmtFromStream.
2005   Record.skipInts(1);
2006   VisitOMPExecutableDirective(D);
2007   D->setX(Record.readSubExpr());
2008   D->setV(Record.readSubExpr());
2009   D->setExpr(Record.readSubExpr());
2010   D->setUpdateExpr(Record.readSubExpr());
2011   D->IsXLHSInRHSPart = Record.readInt() != 0;
2012   D->IsPostfixUpdate = Record.readInt() != 0;
2013 }
2014 
2015 void ASTStmtReader::VisitOMPTargetDirective(OMPTargetDirective *D) {
2016   VisitStmt(D);
2017   // The NumClauses field was read in ReadStmtFromStream.
2018   Record.skipInts(1);
2019   VisitOMPExecutableDirective(D);
2020 }
2021 
2022 void ASTStmtReader::VisitOMPTargetDataDirective(OMPTargetDataDirective *D) {
2023   VisitStmt(D);
2024   Record.skipInts(1);
2025   VisitOMPExecutableDirective(D);
2026 }
2027 
2028 void ASTStmtReader::VisitOMPTargetEnterDataDirective(
2029     OMPTargetEnterDataDirective *D) {
2030   VisitStmt(D);
2031   Record.skipInts(1);
2032   VisitOMPExecutableDirective(D);
2033 }
2034 
2035 void ASTStmtReader::VisitOMPTargetExitDataDirective(
2036     OMPTargetExitDataDirective *D) {
2037   VisitStmt(D);
2038   Record.skipInts(1);
2039   VisitOMPExecutableDirective(D);
2040 }
2041 
2042 void ASTStmtReader::VisitOMPTargetParallelDirective(
2043     OMPTargetParallelDirective *D) {
2044   VisitStmt(D);
2045   Record.skipInts(1);
2046   VisitOMPExecutableDirective(D);
2047 }
2048 
2049 void ASTStmtReader::VisitOMPTargetParallelForDirective(
2050     OMPTargetParallelForDirective *D) {
2051   VisitOMPLoopDirective(D);
2052   D->setHasCancel(Record.readInt());
2053 }
2054 
2055 void ASTStmtReader::VisitOMPTeamsDirective(OMPTeamsDirective *D) {
2056   VisitStmt(D);
2057   // The NumClauses field was read in ReadStmtFromStream.
2058   Record.skipInts(1);
2059   VisitOMPExecutableDirective(D);
2060 }
2061 
2062 void ASTStmtReader::VisitOMPCancellationPointDirective(
2063     OMPCancellationPointDirective *D) {
2064   VisitStmt(D);
2065   VisitOMPExecutableDirective(D);
2066   D->setCancelRegion(static_cast<OpenMPDirectiveKind>(Record.readInt()));
2067 }
2068 
2069 void ASTStmtReader::VisitOMPCancelDirective(OMPCancelDirective *D) {
2070   VisitStmt(D);
2071   // The NumClauses field was read in ReadStmtFromStream.
2072   Record.skipInts(1);
2073   VisitOMPExecutableDirective(D);
2074   D->setCancelRegion(static_cast<OpenMPDirectiveKind>(Record.readInt()));
2075 }
2076 
2077 void ASTStmtReader::VisitOMPTaskLoopDirective(OMPTaskLoopDirective *D) {
2078   VisitOMPLoopDirective(D);
2079 }
2080 
2081 void ASTStmtReader::VisitOMPTaskLoopSimdDirective(OMPTaskLoopSimdDirective *D) {
2082   VisitOMPLoopDirective(D);
2083 }
2084 
2085 void ASTStmtReader::VisitOMPDistributeDirective(OMPDistributeDirective *D) {
2086   VisitOMPLoopDirective(D);
2087 }
2088 
2089 void ASTStmtReader::VisitOMPTargetUpdateDirective(OMPTargetUpdateDirective *D) {
2090   VisitStmt(D);
2091   Record.skipInts(1);
2092   VisitOMPExecutableDirective(D);
2093 }
2094 
2095 void ASTStmtReader::VisitOMPDistributeParallelForDirective(
2096     OMPDistributeParallelForDirective *D) {
2097   VisitOMPLoopDirective(D);
2098   D->setHasCancel(Record.readInt());
2099 }
2100 
2101 void ASTStmtReader::VisitOMPDistributeParallelForSimdDirective(
2102     OMPDistributeParallelForSimdDirective *D) {
2103   VisitOMPLoopDirective(D);
2104 }
2105 
2106 void ASTStmtReader::VisitOMPDistributeSimdDirective(
2107     OMPDistributeSimdDirective *D) {
2108   VisitOMPLoopDirective(D);
2109 }
2110 
2111 void ASTStmtReader::VisitOMPTargetParallelForSimdDirective(
2112     OMPTargetParallelForSimdDirective *D) {
2113   VisitOMPLoopDirective(D);
2114 }
2115 
2116 void ASTStmtReader::VisitOMPTargetSimdDirective(OMPTargetSimdDirective *D) {
2117   VisitOMPLoopDirective(D);
2118 }
2119 
2120 void ASTStmtReader::VisitOMPTeamsDistributeDirective(
2121     OMPTeamsDistributeDirective *D) {
2122   VisitOMPLoopDirective(D);
2123 }
2124 
2125 void ASTStmtReader::VisitOMPTeamsDistributeSimdDirective(
2126     OMPTeamsDistributeSimdDirective *D) {
2127   VisitOMPLoopDirective(D);
2128 }
2129 
2130 void ASTStmtReader::VisitOMPTeamsDistributeParallelForSimdDirective(
2131     OMPTeamsDistributeParallelForSimdDirective *D) {
2132   VisitOMPLoopDirective(D);
2133 }
2134 
2135 void ASTStmtReader::VisitOMPTeamsDistributeParallelForDirective(
2136     OMPTeamsDistributeParallelForDirective *D) {
2137   VisitOMPLoopDirective(D);
2138   D->setHasCancel(Record.readInt());
2139 }
2140 
2141 void ASTStmtReader::VisitOMPTargetTeamsDirective(OMPTargetTeamsDirective *D) {
2142   VisitStmt(D);
2143   // The NumClauses field was read in ReadStmtFromStream.
2144   Record.skipInts(1);
2145   VisitOMPExecutableDirective(D);
2146 }
2147 
2148 void ASTStmtReader::VisitOMPTargetTeamsDistributeDirective(
2149     OMPTargetTeamsDistributeDirective *D) {
2150   VisitOMPLoopDirective(D);
2151 }
2152 
2153 void ASTStmtReader::VisitOMPTargetTeamsDistributeParallelForDirective(
2154     OMPTargetTeamsDistributeParallelForDirective *D) {
2155   VisitOMPLoopDirective(D);
2156   D->setHasCancel(Record.readInt());
2157 }
2158 
2159 void ASTStmtReader::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
2160     OMPTargetTeamsDistributeParallelForSimdDirective *D) {
2161   VisitOMPLoopDirective(D);
2162 }
2163 
2164 void ASTStmtReader::VisitOMPTargetTeamsDistributeSimdDirective(
2165     OMPTargetTeamsDistributeSimdDirective *D) {
2166   VisitOMPLoopDirective(D);
2167 }
2168 
2169 //===----------------------------------------------------------------------===//
2170 // ASTReader Implementation
2171 //===----------------------------------------------------------------------===//
2172 
2173 Stmt *ASTReader::ReadStmt(ModuleFile &F) {
2174   switch (ReadingKind) {
2175   case Read_None:
2176     llvm_unreachable("should not call this when not reading anything");
2177   case Read_Decl:
2178   case Read_Type:
2179     return ReadStmtFromStream(F);
2180   case Read_Stmt:
2181     return ReadSubStmt();
2182   }
2183 
2184   llvm_unreachable("ReadingKind not set ?");
2185 }
2186 
2187 Expr *ASTReader::ReadExpr(ModuleFile &F) {
2188   return cast_or_null<Expr>(ReadStmt(F));
2189 }
2190 
2191 Expr *ASTReader::ReadSubExpr() {
2192   return cast_or_null<Expr>(ReadSubStmt());
2193 }
2194 
2195 // Within the bitstream, expressions are stored in Reverse Polish
2196 // Notation, with each of the subexpressions preceding the
2197 // expression they are stored in. Subexpressions are stored from last to first.
2198 // To evaluate expressions, we continue reading expressions and placing them on
2199 // the stack, with expressions having operands removing those operands from the
2200 // stack. Evaluation terminates when we see a STMT_STOP record, and
2201 // the single remaining expression on the stack is our result.
2202 Stmt *ASTReader::ReadStmtFromStream(ModuleFile &F) {
2203   ReadingKindTracker ReadingKind(Read_Stmt, *this);
2204   llvm::BitstreamCursor &Cursor = F.DeclsCursor;
2205 
2206   // Map of offset to previously deserialized stmt. The offset points
2207   // just after the stmt record.
2208   llvm::DenseMap<uint64_t, Stmt *> StmtEntries;
2209 
2210 #ifndef NDEBUG
2211   unsigned PrevNumStmts = StmtStack.size();
2212 #endif
2213 
2214   ASTRecordReader Record(*this, F);
2215   ASTStmtReader Reader(Record, Cursor);
2216   Stmt::EmptyShell Empty;
2217 
2218   while (true) {
2219     llvm::BitstreamEntry Entry = Cursor.advanceSkippingSubblocks();
2220 
2221     switch (Entry.Kind) {
2222     case llvm::BitstreamEntry::SubBlock: // Handled for us already.
2223     case llvm::BitstreamEntry::Error:
2224       Error("malformed block record in AST file");
2225       return nullptr;
2226     case llvm::BitstreamEntry::EndBlock:
2227       goto Done;
2228     case llvm::BitstreamEntry::Record:
2229       // The interesting case.
2230       break;
2231     }
2232 
2233     ASTContext &Context = getContext();
2234     Stmt *S = nullptr;
2235     bool Finished = false;
2236     bool IsStmtReference = false;
2237     switch ((StmtCode)Record.readRecord(Cursor, Entry.ID)) {
2238     case STMT_STOP:
2239       Finished = true;
2240       break;
2241 
2242     case STMT_REF_PTR:
2243       IsStmtReference = true;
2244       assert(StmtEntries.find(Record[0]) != StmtEntries.end() &&
2245              "No stmt was recorded for this offset reference!");
2246       S = StmtEntries[Record.readInt()];
2247       break;
2248 
2249     case STMT_NULL_PTR:
2250       S = nullptr;
2251       break;
2252 
2253     case STMT_NULL:
2254       S = new (Context) NullStmt(Empty);
2255       break;
2256 
2257     case STMT_COMPOUND:
2258       S = CompoundStmt::CreateEmpty(
2259           Context, /*NumStmts=*/Record[ASTStmtReader::NumStmtFields]);
2260       break;
2261 
2262     case STMT_CASE:
2263       S = new (Context) CaseStmt(Empty);
2264       break;
2265 
2266     case STMT_DEFAULT:
2267       S = new (Context) DefaultStmt(Empty);
2268       break;
2269 
2270     case STMT_LABEL:
2271       S = new (Context) LabelStmt(Empty);
2272       break;
2273 
2274     case STMT_ATTRIBUTED:
2275       S = AttributedStmt::CreateEmpty(
2276         Context,
2277         /*NumAttrs*/Record[ASTStmtReader::NumStmtFields]);
2278       break;
2279 
2280     case STMT_IF:
2281       S = new (Context) IfStmt(Empty);
2282       break;
2283 
2284     case STMT_SWITCH:
2285       S = new (Context) SwitchStmt(Empty);
2286       break;
2287 
2288     case STMT_WHILE:
2289       S = new (Context) WhileStmt(Empty);
2290       break;
2291 
2292     case STMT_DO:
2293       S = new (Context) DoStmt(Empty);
2294       break;
2295 
2296     case STMT_FOR:
2297       S = new (Context) ForStmt(Empty);
2298       break;
2299 
2300     case STMT_GOTO:
2301       S = new (Context) GotoStmt(Empty);
2302       break;
2303 
2304     case STMT_INDIRECT_GOTO:
2305       S = new (Context) IndirectGotoStmt(Empty);
2306       break;
2307 
2308     case STMT_CONTINUE:
2309       S = new (Context) ContinueStmt(Empty);
2310       break;
2311 
2312     case STMT_BREAK:
2313       S = new (Context) BreakStmt(Empty);
2314       break;
2315 
2316     case STMT_RETURN:
2317       S = new (Context) ReturnStmt(Empty);
2318       break;
2319 
2320     case STMT_DECL:
2321       S = new (Context) DeclStmt(Empty);
2322       break;
2323 
2324     case STMT_GCCASM:
2325       S = new (Context) GCCAsmStmt(Empty);
2326       break;
2327 
2328     case STMT_MSASM:
2329       S = new (Context) MSAsmStmt(Empty);
2330       break;
2331 
2332     case STMT_CAPTURED:
2333       S = CapturedStmt::CreateDeserialized(Context,
2334                                            Record[ASTStmtReader::NumStmtFields]);
2335       break;
2336 
2337     case EXPR_PREDEFINED:
2338       S = new (Context) PredefinedExpr(Empty);
2339       break;
2340 
2341     case EXPR_DECL_REF:
2342       S = DeclRefExpr::CreateEmpty(
2343         Context,
2344         /*HasQualifier=*/Record[ASTStmtReader::NumExprFields],
2345         /*HasFoundDecl=*/Record[ASTStmtReader::NumExprFields + 1],
2346         /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields + 2],
2347         /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields + 2] ?
2348           Record[ASTStmtReader::NumExprFields + 5] : 0);
2349       break;
2350 
2351     case EXPR_INTEGER_LITERAL:
2352       S = IntegerLiteral::Create(Context, Empty);
2353       break;
2354 
2355     case EXPR_FLOATING_LITERAL:
2356       S = FloatingLiteral::Create(Context, Empty);
2357       break;
2358 
2359     case EXPR_IMAGINARY_LITERAL:
2360       S = new (Context) ImaginaryLiteral(Empty);
2361       break;
2362 
2363     case EXPR_STRING_LITERAL:
2364       S = StringLiteral::CreateEmpty(Context,
2365                                      Record[ASTStmtReader::NumExprFields + 1]);
2366       break;
2367 
2368     case EXPR_CHARACTER_LITERAL:
2369       S = new (Context) CharacterLiteral(Empty);
2370       break;
2371 
2372     case EXPR_PAREN:
2373       S = new (Context) ParenExpr(Empty);
2374       break;
2375 
2376     case EXPR_PAREN_LIST:
2377       S = new (Context) ParenListExpr(Empty);
2378       break;
2379 
2380     case EXPR_UNARY_OPERATOR:
2381       S = new (Context) UnaryOperator(Empty);
2382       break;
2383 
2384     case EXPR_OFFSETOF:
2385       S = OffsetOfExpr::CreateEmpty(Context,
2386                                     Record[ASTStmtReader::NumExprFields],
2387                                     Record[ASTStmtReader::NumExprFields + 1]);
2388       break;
2389 
2390     case EXPR_SIZEOF_ALIGN_OF:
2391       S = new (Context) UnaryExprOrTypeTraitExpr(Empty);
2392       break;
2393 
2394     case EXPR_ARRAY_SUBSCRIPT:
2395       S = new (Context) ArraySubscriptExpr(Empty);
2396       break;
2397 
2398     case EXPR_OMP_ARRAY_SECTION:
2399       S = new (Context) OMPArraySectionExpr(Empty);
2400       break;
2401 
2402     case EXPR_CALL:
2403       S = new (Context) CallExpr(Context, Stmt::CallExprClass, Empty);
2404       break;
2405 
2406     case EXPR_MEMBER: {
2407       // We load everything here and fully initialize it at creation.
2408       // That way we can use MemberExpr::Create and don't have to duplicate its
2409       // logic with a MemberExpr::CreateEmpty.
2410 
2411       assert(Record.getIdx() == 0);
2412       NestedNameSpecifierLoc QualifierLoc;
2413       if (Record.readInt()) { // HasQualifier.
2414         QualifierLoc = Record.readNestedNameSpecifierLoc();
2415       }
2416 
2417       SourceLocation TemplateKWLoc;
2418       TemplateArgumentListInfo ArgInfo;
2419       bool HasTemplateKWAndArgsInfo = Record.readInt();
2420       if (HasTemplateKWAndArgsInfo) {
2421         TemplateKWLoc = Record.readSourceLocation();
2422         unsigned NumTemplateArgs = Record.readInt();
2423         ArgInfo.setLAngleLoc(Record.readSourceLocation());
2424         ArgInfo.setRAngleLoc(Record.readSourceLocation());
2425         for (unsigned i = 0; i != NumTemplateArgs; ++i)
2426           ArgInfo.addArgument(Record.readTemplateArgumentLoc());
2427       }
2428 
2429       bool HadMultipleCandidates = Record.readInt();
2430 
2431       auto *FoundD = Record.readDeclAs<NamedDecl>();
2432       auto AS = (AccessSpecifier)Record.readInt();
2433       DeclAccessPair FoundDecl = DeclAccessPair::make(FoundD, AS);
2434 
2435       QualType T = Record.readType();
2436       auto VK = static_cast<ExprValueKind>(Record.readInt());
2437       auto OK = static_cast<ExprObjectKind>(Record.readInt());
2438       Expr *Base = ReadSubExpr();
2439       auto *MemberD = Record.readDeclAs<ValueDecl>();
2440       SourceLocation MemberLoc = Record.readSourceLocation();
2441       DeclarationNameInfo MemberNameInfo(MemberD->getDeclName(), MemberLoc);
2442       bool IsArrow = Record.readInt();
2443       SourceLocation OperatorLoc = Record.readSourceLocation();
2444 
2445       S = MemberExpr::Create(Context, Base, IsArrow, OperatorLoc, QualifierLoc,
2446                              TemplateKWLoc, MemberD, FoundDecl, MemberNameInfo,
2447                              HasTemplateKWAndArgsInfo ? &ArgInfo : nullptr, T,
2448                              VK, OK);
2449       Record.readDeclarationNameLoc(cast<MemberExpr>(S)->MemberDNLoc,
2450                                     MemberD->getDeclName());
2451       if (HadMultipleCandidates)
2452         cast<MemberExpr>(S)->setHadMultipleCandidates(true);
2453       break;
2454     }
2455 
2456     case EXPR_BINARY_OPERATOR:
2457       S = new (Context) BinaryOperator(Empty);
2458       break;
2459 
2460     case EXPR_COMPOUND_ASSIGN_OPERATOR:
2461       S = new (Context) CompoundAssignOperator(Empty);
2462       break;
2463 
2464     case EXPR_CONDITIONAL_OPERATOR:
2465       S = new (Context) ConditionalOperator(Empty);
2466       break;
2467 
2468     case EXPR_BINARY_CONDITIONAL_OPERATOR:
2469       S = new (Context) BinaryConditionalOperator(Empty);
2470       break;
2471 
2472     case EXPR_IMPLICIT_CAST:
2473       S = ImplicitCastExpr::CreateEmpty(Context,
2474                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
2475       break;
2476 
2477     case EXPR_CSTYLE_CAST:
2478       S = CStyleCastExpr::CreateEmpty(Context,
2479                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
2480       break;
2481 
2482     case EXPR_COMPOUND_LITERAL:
2483       S = new (Context) CompoundLiteralExpr(Empty);
2484       break;
2485 
2486     case EXPR_EXT_VECTOR_ELEMENT:
2487       S = new (Context) ExtVectorElementExpr(Empty);
2488       break;
2489 
2490     case EXPR_INIT_LIST:
2491       S = new (Context) InitListExpr(Empty);
2492       break;
2493 
2494     case EXPR_DESIGNATED_INIT:
2495       S = DesignatedInitExpr::CreateEmpty(Context,
2496                                      Record[ASTStmtReader::NumExprFields] - 1);
2497 
2498       break;
2499 
2500     case EXPR_DESIGNATED_INIT_UPDATE:
2501       S = new (Context) DesignatedInitUpdateExpr(Empty);
2502       break;
2503 
2504     case EXPR_IMPLICIT_VALUE_INIT:
2505       S = new (Context) ImplicitValueInitExpr(Empty);
2506       break;
2507 
2508     case EXPR_NO_INIT:
2509       S = new (Context) NoInitExpr(Empty);
2510       break;
2511 
2512     case EXPR_ARRAY_INIT_LOOP:
2513       S = new (Context) ArrayInitLoopExpr(Empty);
2514       break;
2515 
2516     case EXPR_ARRAY_INIT_INDEX:
2517       S = new (Context) ArrayInitIndexExpr(Empty);
2518       break;
2519 
2520     case EXPR_VA_ARG:
2521       S = new (Context) VAArgExpr(Empty);
2522       break;
2523 
2524     case EXPR_ADDR_LABEL:
2525       S = new (Context) AddrLabelExpr(Empty);
2526       break;
2527 
2528     case EXPR_STMT:
2529       S = new (Context) StmtExpr(Empty);
2530       break;
2531 
2532     case EXPR_CHOOSE:
2533       S = new (Context) ChooseExpr(Empty);
2534       break;
2535 
2536     case EXPR_GNU_NULL:
2537       S = new (Context) GNUNullExpr(Empty);
2538       break;
2539 
2540     case EXPR_SHUFFLE_VECTOR:
2541       S = new (Context) ShuffleVectorExpr(Empty);
2542       break;
2543 
2544     case EXPR_CONVERT_VECTOR:
2545       S = new (Context) ConvertVectorExpr(Empty);
2546       break;
2547 
2548     case EXPR_BLOCK:
2549       S = new (Context) BlockExpr(Empty);
2550       break;
2551 
2552     case EXPR_GENERIC_SELECTION:
2553       S = new (Context) GenericSelectionExpr(Empty);
2554       break;
2555 
2556     case EXPR_OBJC_STRING_LITERAL:
2557       S = new (Context) ObjCStringLiteral(Empty);
2558       break;
2559 
2560     case EXPR_OBJC_BOXED_EXPRESSION:
2561       S = new (Context) ObjCBoxedExpr(Empty);
2562       break;
2563 
2564     case EXPR_OBJC_ARRAY_LITERAL:
2565       S = ObjCArrayLiteral::CreateEmpty(Context,
2566                                         Record[ASTStmtReader::NumExprFields]);
2567       break;
2568 
2569     case EXPR_OBJC_DICTIONARY_LITERAL:
2570       S = ObjCDictionaryLiteral::CreateEmpty(Context,
2571             Record[ASTStmtReader::NumExprFields],
2572             Record[ASTStmtReader::NumExprFields + 1]);
2573       break;
2574 
2575     case EXPR_OBJC_ENCODE:
2576       S = new (Context) ObjCEncodeExpr(Empty);
2577       break;
2578 
2579     case EXPR_OBJC_SELECTOR_EXPR:
2580       S = new (Context) ObjCSelectorExpr(Empty);
2581       break;
2582 
2583     case EXPR_OBJC_PROTOCOL_EXPR:
2584       S = new (Context) ObjCProtocolExpr(Empty);
2585       break;
2586 
2587     case EXPR_OBJC_IVAR_REF_EXPR:
2588       S = new (Context) ObjCIvarRefExpr(Empty);
2589       break;
2590 
2591     case EXPR_OBJC_PROPERTY_REF_EXPR:
2592       S = new (Context) ObjCPropertyRefExpr(Empty);
2593       break;
2594 
2595     case EXPR_OBJC_SUBSCRIPT_REF_EXPR:
2596       S = new (Context) ObjCSubscriptRefExpr(Empty);
2597       break;
2598 
2599     case EXPR_OBJC_KVC_REF_EXPR:
2600       llvm_unreachable("mismatching AST file");
2601 
2602     case EXPR_OBJC_MESSAGE_EXPR:
2603       S = ObjCMessageExpr::CreateEmpty(Context,
2604                                      Record[ASTStmtReader::NumExprFields],
2605                                      Record[ASTStmtReader::NumExprFields + 1]);
2606       break;
2607 
2608     case EXPR_OBJC_ISA:
2609       S = new (Context) ObjCIsaExpr(Empty);
2610       break;
2611 
2612     case EXPR_OBJC_INDIRECT_COPY_RESTORE:
2613       S = new (Context) ObjCIndirectCopyRestoreExpr(Empty);
2614       break;
2615 
2616     case EXPR_OBJC_BRIDGED_CAST:
2617       S = new (Context) ObjCBridgedCastExpr(Empty);
2618       break;
2619 
2620     case STMT_OBJC_FOR_COLLECTION:
2621       S = new (Context) ObjCForCollectionStmt(Empty);
2622       break;
2623 
2624     case STMT_OBJC_CATCH:
2625       S = new (Context) ObjCAtCatchStmt(Empty);
2626       break;
2627 
2628     case STMT_OBJC_FINALLY:
2629       S = new (Context) ObjCAtFinallyStmt(Empty);
2630       break;
2631 
2632     case STMT_OBJC_AT_TRY:
2633       S = ObjCAtTryStmt::CreateEmpty(Context,
2634                                      Record[ASTStmtReader::NumStmtFields],
2635                                      Record[ASTStmtReader::NumStmtFields + 1]);
2636       break;
2637 
2638     case STMT_OBJC_AT_SYNCHRONIZED:
2639       S = new (Context) ObjCAtSynchronizedStmt(Empty);
2640       break;
2641 
2642     case STMT_OBJC_AT_THROW:
2643       S = new (Context) ObjCAtThrowStmt(Empty);
2644       break;
2645 
2646     case STMT_OBJC_AUTORELEASE_POOL:
2647       S = new (Context) ObjCAutoreleasePoolStmt(Empty);
2648       break;
2649 
2650     case EXPR_OBJC_BOOL_LITERAL:
2651       S = new (Context) ObjCBoolLiteralExpr(Empty);
2652       break;
2653 
2654     case EXPR_OBJC_AVAILABILITY_CHECK:
2655       S = new (Context) ObjCAvailabilityCheckExpr(Empty);
2656       break;
2657 
2658     case STMT_SEH_LEAVE:
2659       S = new (Context) SEHLeaveStmt(Empty);
2660       break;
2661 
2662     case STMT_SEH_EXCEPT:
2663       S = new (Context) SEHExceptStmt(Empty);
2664       break;
2665 
2666     case STMT_SEH_FINALLY:
2667       S = new (Context) SEHFinallyStmt(Empty);
2668       break;
2669 
2670     case STMT_SEH_TRY:
2671       S = new (Context) SEHTryStmt(Empty);
2672       break;
2673 
2674     case STMT_CXX_CATCH:
2675       S = new (Context) CXXCatchStmt(Empty);
2676       break;
2677 
2678     case STMT_CXX_TRY:
2679       S = CXXTryStmt::Create(Context, Empty,
2680              /*NumHandlers=*/Record[ASTStmtReader::NumStmtFields]);
2681       break;
2682 
2683     case STMT_CXX_FOR_RANGE:
2684       S = new (Context) CXXForRangeStmt(Empty);
2685       break;
2686 
2687     case STMT_MS_DEPENDENT_EXISTS:
2688       S = new (Context) MSDependentExistsStmt(SourceLocation(), true,
2689                                               NestedNameSpecifierLoc(),
2690                                               DeclarationNameInfo(),
2691                                               nullptr);
2692       break;
2693 
2694     case STMT_OMP_PARALLEL_DIRECTIVE:
2695       S =
2696         OMPParallelDirective::CreateEmpty(Context,
2697                                           Record[ASTStmtReader::NumStmtFields],
2698                                           Empty);
2699       break;
2700 
2701     case STMT_OMP_SIMD_DIRECTIVE: {
2702       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2703       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2704       S = OMPSimdDirective::CreateEmpty(Context, NumClauses,
2705                                         CollapsedNum, Empty);
2706       break;
2707     }
2708 
2709     case STMT_OMP_FOR_DIRECTIVE: {
2710       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2711       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2712       S = OMPForDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2713                                        Empty);
2714       break;
2715     }
2716 
2717     case STMT_OMP_FOR_SIMD_DIRECTIVE: {
2718       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2719       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2720       S = OMPForSimdDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2721                                            Empty);
2722       break;
2723     }
2724 
2725     case STMT_OMP_SECTIONS_DIRECTIVE:
2726       S = OMPSectionsDirective::CreateEmpty(
2727           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2728       break;
2729 
2730     case STMT_OMP_SECTION_DIRECTIVE:
2731       S = OMPSectionDirective::CreateEmpty(Context, Empty);
2732       break;
2733 
2734     case STMT_OMP_SINGLE_DIRECTIVE:
2735       S = OMPSingleDirective::CreateEmpty(
2736           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2737       break;
2738 
2739     case STMT_OMP_MASTER_DIRECTIVE:
2740       S = OMPMasterDirective::CreateEmpty(Context, Empty);
2741       break;
2742 
2743     case STMT_OMP_CRITICAL_DIRECTIVE:
2744       S = OMPCriticalDirective::CreateEmpty(
2745           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2746       break;
2747 
2748     case STMT_OMP_PARALLEL_FOR_DIRECTIVE: {
2749       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2750       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2751       S = OMPParallelForDirective::CreateEmpty(Context, NumClauses,
2752                                                CollapsedNum, Empty);
2753       break;
2754     }
2755 
2756     case STMT_OMP_PARALLEL_FOR_SIMD_DIRECTIVE: {
2757       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2758       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2759       S = OMPParallelForSimdDirective::CreateEmpty(Context, NumClauses,
2760                                                    CollapsedNum, Empty);
2761       break;
2762     }
2763 
2764     case STMT_OMP_PARALLEL_SECTIONS_DIRECTIVE:
2765       S = OMPParallelSectionsDirective::CreateEmpty(
2766           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2767       break;
2768 
2769     case STMT_OMP_TASK_DIRECTIVE:
2770       S = OMPTaskDirective::CreateEmpty(
2771           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2772       break;
2773 
2774     case STMT_OMP_TASKYIELD_DIRECTIVE:
2775       S = OMPTaskyieldDirective::CreateEmpty(Context, Empty);
2776       break;
2777 
2778     case STMT_OMP_BARRIER_DIRECTIVE:
2779       S = OMPBarrierDirective::CreateEmpty(Context, Empty);
2780       break;
2781 
2782     case STMT_OMP_TASKWAIT_DIRECTIVE:
2783       S = OMPTaskwaitDirective::CreateEmpty(Context, Empty);
2784       break;
2785 
2786     case STMT_OMP_TASKGROUP_DIRECTIVE:
2787       S = OMPTaskgroupDirective::CreateEmpty(
2788           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2789       break;
2790 
2791     case STMT_OMP_FLUSH_DIRECTIVE:
2792       S = OMPFlushDirective::CreateEmpty(
2793           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2794       break;
2795 
2796     case STMT_OMP_ORDERED_DIRECTIVE:
2797       S = OMPOrderedDirective::CreateEmpty(
2798           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2799       break;
2800 
2801     case STMT_OMP_ATOMIC_DIRECTIVE:
2802       S = OMPAtomicDirective::CreateEmpty(
2803           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2804       break;
2805 
2806     case STMT_OMP_TARGET_DIRECTIVE:
2807       S = OMPTargetDirective::CreateEmpty(
2808           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2809       break;
2810 
2811     case STMT_OMP_TARGET_DATA_DIRECTIVE:
2812       S = OMPTargetDataDirective::CreateEmpty(
2813           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2814       break;
2815 
2816     case STMT_OMP_TARGET_ENTER_DATA_DIRECTIVE:
2817       S = OMPTargetEnterDataDirective::CreateEmpty(
2818           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2819       break;
2820 
2821     case STMT_OMP_TARGET_EXIT_DATA_DIRECTIVE:
2822       S = OMPTargetExitDataDirective::CreateEmpty(
2823           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2824       break;
2825 
2826     case STMT_OMP_TARGET_PARALLEL_DIRECTIVE:
2827       S = OMPTargetParallelDirective::CreateEmpty(
2828           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2829       break;
2830 
2831     case STMT_OMP_TARGET_PARALLEL_FOR_DIRECTIVE: {
2832       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2833       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2834       S = OMPTargetParallelForDirective::CreateEmpty(Context, NumClauses,
2835                                                      CollapsedNum, Empty);
2836       break;
2837     }
2838 
2839     case STMT_OMP_TARGET_UPDATE_DIRECTIVE:
2840       S = OMPTargetUpdateDirective::CreateEmpty(
2841           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2842       break;
2843 
2844     case STMT_OMP_TEAMS_DIRECTIVE:
2845       S = OMPTeamsDirective::CreateEmpty(
2846           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2847       break;
2848 
2849     case STMT_OMP_CANCELLATION_POINT_DIRECTIVE:
2850       S = OMPCancellationPointDirective::CreateEmpty(Context, Empty);
2851       break;
2852 
2853     case STMT_OMP_CANCEL_DIRECTIVE:
2854       S = OMPCancelDirective::CreateEmpty(
2855           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2856       break;
2857 
2858     case STMT_OMP_TASKLOOP_DIRECTIVE: {
2859       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2860       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2861       S = OMPTaskLoopDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2862                                             Empty);
2863       break;
2864     }
2865 
2866     case STMT_OMP_TASKLOOP_SIMD_DIRECTIVE: {
2867       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2868       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2869       S = OMPTaskLoopSimdDirective::CreateEmpty(Context, NumClauses,
2870                                                 CollapsedNum, Empty);
2871       break;
2872     }
2873 
2874     case STMT_OMP_DISTRIBUTE_DIRECTIVE: {
2875       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2876       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2877       S = OMPDistributeDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2878                                               Empty);
2879       break;
2880     }
2881 
2882     case STMT_OMP_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
2883       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2884       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2885       S = OMPDistributeParallelForDirective::CreateEmpty(Context, NumClauses,
2886                                                          CollapsedNum, Empty);
2887       break;
2888     }
2889 
2890     case STMT_OMP_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
2891       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2892       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2893       S = OMPDistributeParallelForSimdDirective::CreateEmpty(Context, NumClauses,
2894                                                              CollapsedNum,
2895                                                              Empty);
2896       break;
2897     }
2898 
2899     case STMT_OMP_DISTRIBUTE_SIMD_DIRECTIVE: {
2900       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2901       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2902       S = OMPDistributeSimdDirective::CreateEmpty(Context, NumClauses,
2903                                                   CollapsedNum, Empty);
2904       break;
2905     }
2906 
2907     case STMT_OMP_TARGET_PARALLEL_FOR_SIMD_DIRECTIVE: {
2908       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2909       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2910       S = OMPTargetParallelForSimdDirective::CreateEmpty(Context, NumClauses,
2911                                                          CollapsedNum, Empty);
2912       break;
2913     }
2914 
2915     case STMT_OMP_TARGET_SIMD_DIRECTIVE: {
2916       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2917       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2918       S = OMPTargetSimdDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2919                                               Empty);
2920       break;
2921     }
2922 
2923      case STMT_OMP_TEAMS_DISTRIBUTE_DIRECTIVE: {
2924       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2925       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2926       S = OMPTeamsDistributeDirective::CreateEmpty(Context, NumClauses,
2927                                                    CollapsedNum, Empty);
2928       break;
2929     }
2930 
2931     case STMT_OMP_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE: {
2932       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2933       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2934       S = OMPTeamsDistributeSimdDirective::CreateEmpty(Context, NumClauses,
2935                                                        CollapsedNum, Empty);
2936       break;
2937     }
2938 
2939     case STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
2940       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2941       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2942       S = OMPTeamsDistributeParallelForSimdDirective::CreateEmpty(
2943           Context, NumClauses, CollapsedNum, Empty);
2944       break;
2945     }
2946 
2947     case STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
2948       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2949       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2950       S = OMPTeamsDistributeParallelForDirective::CreateEmpty(
2951           Context, NumClauses, CollapsedNum, Empty);
2952       break;
2953     }
2954 
2955     case STMT_OMP_TARGET_TEAMS_DIRECTIVE:
2956       S = OMPTargetTeamsDirective::CreateEmpty(
2957           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2958       break;
2959 
2960     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_DIRECTIVE: {
2961       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2962       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2963       S = OMPTargetTeamsDistributeDirective::CreateEmpty(Context, NumClauses,
2964                                                          CollapsedNum, Empty);
2965       break;
2966     }
2967 
2968     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
2969       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2970       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2971       S = OMPTargetTeamsDistributeParallelForDirective::CreateEmpty(
2972           Context, NumClauses, CollapsedNum, Empty);
2973       break;
2974     }
2975 
2976     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
2977       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2978       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2979       S = OMPTargetTeamsDistributeParallelForSimdDirective::CreateEmpty(
2980           Context, NumClauses, CollapsedNum, Empty);
2981       break;
2982     }
2983 
2984     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE: {
2985       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
2986       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2987       S = OMPTargetTeamsDistributeSimdDirective::CreateEmpty(
2988           Context, NumClauses, CollapsedNum, Empty);
2989       break;
2990     }
2991 
2992     case EXPR_CXX_OPERATOR_CALL:
2993       S = new (Context) CXXOperatorCallExpr(Context, Empty);
2994       break;
2995 
2996     case EXPR_CXX_MEMBER_CALL:
2997       S = new (Context) CXXMemberCallExpr(Context, Empty);
2998       break;
2999 
3000     case EXPR_CXX_CONSTRUCT:
3001       S = new (Context) CXXConstructExpr(Empty);
3002       break;
3003 
3004     case EXPR_CXX_INHERITED_CTOR_INIT:
3005       S = new (Context) CXXInheritedCtorInitExpr(Empty);
3006       break;
3007 
3008     case EXPR_CXX_TEMPORARY_OBJECT:
3009       S = new (Context) CXXTemporaryObjectExpr(Empty);
3010       break;
3011 
3012     case EXPR_CXX_STATIC_CAST:
3013       S = CXXStaticCastExpr::CreateEmpty(Context,
3014                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3015       break;
3016 
3017     case EXPR_CXX_DYNAMIC_CAST:
3018       S = CXXDynamicCastExpr::CreateEmpty(Context,
3019                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3020       break;
3021 
3022     case EXPR_CXX_REINTERPRET_CAST:
3023       S = CXXReinterpretCastExpr::CreateEmpty(Context,
3024                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3025       break;
3026 
3027     case EXPR_CXX_CONST_CAST:
3028       S = CXXConstCastExpr::CreateEmpty(Context);
3029       break;
3030 
3031     case EXPR_CXX_FUNCTIONAL_CAST:
3032       S = CXXFunctionalCastExpr::CreateEmpty(Context,
3033                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3034       break;
3035 
3036     case EXPR_USER_DEFINED_LITERAL:
3037       S = new (Context) UserDefinedLiteral(Context, Empty);
3038       break;
3039 
3040     case EXPR_CXX_STD_INITIALIZER_LIST:
3041       S = new (Context) CXXStdInitializerListExpr(Empty);
3042       break;
3043 
3044     case EXPR_CXX_BOOL_LITERAL:
3045       S = new (Context) CXXBoolLiteralExpr(Empty);
3046       break;
3047 
3048     case EXPR_CXX_NULL_PTR_LITERAL:
3049       S = new (Context) CXXNullPtrLiteralExpr(Empty);
3050       break;
3051 
3052     case EXPR_CXX_TYPEID_EXPR:
3053       S = new (Context) CXXTypeidExpr(Empty, true);
3054       break;
3055 
3056     case EXPR_CXX_TYPEID_TYPE:
3057       S = new (Context) CXXTypeidExpr(Empty, false);
3058       break;
3059 
3060     case EXPR_CXX_UUIDOF_EXPR:
3061       S = new (Context) CXXUuidofExpr(Empty, true);
3062       break;
3063 
3064     case EXPR_CXX_PROPERTY_REF_EXPR:
3065       S = new (Context) MSPropertyRefExpr(Empty);
3066       break;
3067 
3068     case EXPR_CXX_PROPERTY_SUBSCRIPT_EXPR:
3069       S = new (Context) MSPropertySubscriptExpr(Empty);
3070       break;
3071 
3072     case EXPR_CXX_UUIDOF_TYPE:
3073       S = new (Context) CXXUuidofExpr(Empty, false);
3074       break;
3075 
3076     case EXPR_CXX_THIS:
3077       S = new (Context) CXXThisExpr(Empty);
3078       break;
3079 
3080     case EXPR_CXX_THROW:
3081       S = new (Context) CXXThrowExpr(Empty);
3082       break;
3083 
3084     case EXPR_CXX_DEFAULT_ARG:
3085       S = new (Context) CXXDefaultArgExpr(Empty);
3086       break;
3087 
3088     case EXPR_CXX_DEFAULT_INIT:
3089       S = new (Context) CXXDefaultInitExpr(Empty);
3090       break;
3091 
3092     case EXPR_CXX_BIND_TEMPORARY:
3093       S = new (Context) CXXBindTemporaryExpr(Empty);
3094       break;
3095 
3096     case EXPR_CXX_SCALAR_VALUE_INIT:
3097       S = new (Context) CXXScalarValueInitExpr(Empty);
3098       break;
3099 
3100     case EXPR_CXX_NEW:
3101       S = new (Context) CXXNewExpr(Empty);
3102       break;
3103 
3104     case EXPR_CXX_DELETE:
3105       S = new (Context) CXXDeleteExpr(Empty);
3106       break;
3107 
3108     case EXPR_CXX_PSEUDO_DESTRUCTOR:
3109       S = new (Context) CXXPseudoDestructorExpr(Empty);
3110       break;
3111 
3112     case EXPR_EXPR_WITH_CLEANUPS:
3113       S = ExprWithCleanups::Create(Context, Empty,
3114                                    Record[ASTStmtReader::NumExprFields]);
3115       break;
3116 
3117     case EXPR_CXX_DEPENDENT_SCOPE_MEMBER:
3118       S = CXXDependentScopeMemberExpr::CreateEmpty(Context,
3119          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3120                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
3121                                    ? Record[ASTStmtReader::NumExprFields + 1]
3122                                    : 0);
3123       break;
3124 
3125     case EXPR_CXX_DEPENDENT_SCOPE_DECL_REF:
3126       S = DependentScopeDeclRefExpr::CreateEmpty(Context,
3127          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3128                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
3129                                    ? Record[ASTStmtReader::NumExprFields + 1]
3130                                    : 0);
3131       break;
3132 
3133     case EXPR_CXX_UNRESOLVED_CONSTRUCT:
3134       S = CXXUnresolvedConstructExpr::CreateEmpty(Context,
3135                               /*NumArgs=*/Record[ASTStmtReader::NumExprFields]);
3136       break;
3137 
3138     case EXPR_CXX_UNRESOLVED_MEMBER:
3139       S = UnresolvedMemberExpr::CreateEmpty(Context,
3140          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3141                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
3142                                    ? Record[ASTStmtReader::NumExprFields + 1]
3143                                    : 0);
3144       break;
3145 
3146     case EXPR_CXX_UNRESOLVED_LOOKUP:
3147       S = UnresolvedLookupExpr::CreateEmpty(Context,
3148          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3149                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
3150                                    ? Record[ASTStmtReader::NumExprFields + 1]
3151                                    : 0);
3152       break;
3153 
3154     case EXPR_TYPE_TRAIT:
3155       S = TypeTraitExpr::CreateDeserialized(Context,
3156             Record[ASTStmtReader::NumExprFields]);
3157       break;
3158 
3159     case EXPR_ARRAY_TYPE_TRAIT:
3160       S = new (Context) ArrayTypeTraitExpr(Empty);
3161       break;
3162 
3163     case EXPR_CXX_EXPRESSION_TRAIT:
3164       S = new (Context) ExpressionTraitExpr(Empty);
3165       break;
3166 
3167     case EXPR_CXX_NOEXCEPT:
3168       S = new (Context) CXXNoexceptExpr(Empty);
3169       break;
3170 
3171     case EXPR_PACK_EXPANSION:
3172       S = new (Context) PackExpansionExpr(Empty);
3173       break;
3174 
3175     case EXPR_SIZEOF_PACK:
3176       S = SizeOfPackExpr::CreateDeserialized(
3177               Context,
3178               /*NumPartialArgs=*/Record[ASTStmtReader::NumExprFields]);
3179       break;
3180 
3181     case EXPR_SUBST_NON_TYPE_TEMPLATE_PARM:
3182       S = new (Context) SubstNonTypeTemplateParmExpr(Empty);
3183       break;
3184 
3185     case EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK:
3186       S = new (Context) SubstNonTypeTemplateParmPackExpr(Empty);
3187       break;
3188 
3189     case EXPR_FUNCTION_PARM_PACK:
3190       S = FunctionParmPackExpr::CreateEmpty(Context,
3191                                           Record[ASTStmtReader::NumExprFields]);
3192       break;
3193 
3194     case EXPR_MATERIALIZE_TEMPORARY:
3195       S = new (Context) MaterializeTemporaryExpr(Empty);
3196       break;
3197 
3198     case EXPR_CXX_FOLD:
3199       S = new (Context) CXXFoldExpr(Empty);
3200       break;
3201 
3202     case EXPR_OPAQUE_VALUE:
3203       S = new (Context) OpaqueValueExpr(Empty);
3204       break;
3205 
3206     case EXPR_CUDA_KERNEL_CALL:
3207       S = new (Context) CUDAKernelCallExpr(Context, Empty);
3208       break;
3209 
3210     case EXPR_ASTYPE:
3211       S = new (Context) AsTypeExpr(Empty);
3212       break;
3213 
3214     case EXPR_PSEUDO_OBJECT: {
3215       unsigned numSemanticExprs = Record[ASTStmtReader::NumExprFields];
3216       S = PseudoObjectExpr::Create(Context, Empty, numSemanticExprs);
3217       break;
3218     }
3219 
3220     case EXPR_ATOMIC:
3221       S = new (Context) AtomicExpr(Empty);
3222       break;
3223 
3224     case EXPR_LAMBDA: {
3225       unsigned NumCaptures = Record[ASTStmtReader::NumExprFields];
3226       S = LambdaExpr::CreateDeserialized(Context, NumCaptures);
3227       break;
3228     }
3229 
3230     case STMT_COROUTINE_BODY: {
3231       unsigned NumParams = Record[ASTStmtReader::NumStmtFields];
3232       S = CoroutineBodyStmt::Create(Context, Empty, NumParams);
3233       break;
3234     }
3235 
3236     case STMT_CORETURN:
3237       S = new (Context) CoreturnStmt(Empty);
3238       break;
3239 
3240     case EXPR_COAWAIT:
3241       S = new (Context) CoawaitExpr(Empty);
3242       break;
3243 
3244     case EXPR_COYIELD:
3245       S = new (Context) CoyieldExpr(Empty);
3246       break;
3247 
3248     case EXPR_DEPENDENT_COAWAIT:
3249       S = new (Context) DependentCoawaitExpr(Empty);
3250       break;
3251     }
3252 
3253     // We hit a STMT_STOP, so we're done with this expression.
3254     if (Finished)
3255       break;
3256 
3257     ++NumStatementsRead;
3258 
3259     if (S && !IsStmtReference) {
3260       Reader.Visit(S);
3261       StmtEntries[Cursor.GetCurrentBitNo()] = S;
3262     }
3263 
3264     assert(Record.getIdx() == Record.size() &&
3265            "Invalid deserialization of statement");
3266     StmtStack.push_back(S);
3267   }
3268 Done:
3269   assert(StmtStack.size() > PrevNumStmts && "Read too many sub-stmts!");
3270   assert(StmtStack.size() == PrevNumStmts + 1 && "Extra expressions on stack!");
3271   return StmtStack.pop_back_val();
3272 }
3273