1 //===- ASTReaderStmt.cpp - Stmt/Expr Deserialization ----------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // Statement/expression deserialization.  This implements the
10 // ASTReader::ReadStmt method.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "clang/Serialization/ASTReader.h"
15 #include "clang/AST/ASTContext.h"
16 #include "clang/AST/AttrIterator.h"
17 #include "clang/AST/Decl.h"
18 #include "clang/AST/DeclAccessPair.h"
19 #include "clang/AST/DeclCXX.h"
20 #include "clang/AST/DeclGroup.h"
21 #include "clang/AST/DeclObjC.h"
22 #include "clang/AST/DeclTemplate.h"
23 #include "clang/AST/DeclarationName.h"
24 #include "clang/AST/Expr.h"
25 #include "clang/AST/ExprCXX.h"
26 #include "clang/AST/ExprObjC.h"
27 #include "clang/AST/ExprOpenMP.h"
28 #include "clang/AST/NestedNameSpecifier.h"
29 #include "clang/AST/OpenMPClause.h"
30 #include "clang/AST/OperationKinds.h"
31 #include "clang/AST/Stmt.h"
32 #include "clang/AST/StmtCXX.h"
33 #include "clang/AST/StmtObjC.h"
34 #include "clang/AST/StmtOpenMP.h"
35 #include "clang/AST/StmtVisitor.h"
36 #include "clang/AST/TemplateBase.h"
37 #include "clang/AST/Type.h"
38 #include "clang/AST/UnresolvedSet.h"
39 #include "clang/Basic/CapturedStmt.h"
40 #include "clang/Basic/ExpressionTraits.h"
41 #include "clang/Basic/LLVM.h"
42 #include "clang/Basic/Lambda.h"
43 #include "clang/Basic/LangOptions.h"
44 #include "clang/Basic/OpenMPKinds.h"
45 #include "clang/Basic/OperatorKinds.h"
46 #include "clang/Basic/SourceLocation.h"
47 #include "clang/Basic/Specifiers.h"
48 #include "clang/Basic/TypeTraits.h"
49 #include "clang/Lex/Token.h"
50 #include "clang/Serialization/ASTBitCodes.h"
51 #include "llvm/ADT/DenseMap.h"
52 #include "llvm/ADT/SmallString.h"
53 #include "llvm/ADT/SmallVector.h"
54 #include "llvm/ADT/StringRef.h"
55 #include "llvm/Bitstream/BitstreamReader.h"
56 #include "llvm/Support/Casting.h"
57 #include "llvm/Support/ErrorHandling.h"
58 #include <algorithm>
59 #include <cassert>
60 #include <cstdint>
61 #include <string>
62 
63 using namespace clang;
64 using namespace serialization;
65 
66 namespace clang {
67 
68   class ASTStmtReader : public StmtVisitor<ASTStmtReader> {
69     friend class OMPClauseReader;
70 
71     ASTRecordReader &Record;
72     llvm::BitstreamCursor &DeclsCursor;
73 
74     SourceLocation ReadSourceLocation() {
75       return Record.readSourceLocation();
76     }
77 
78     SourceRange ReadSourceRange() {
79       return Record.readSourceRange();
80     }
81 
82     std::string ReadString() {
83       return Record.readString();
84     }
85 
86     TypeSourceInfo *GetTypeSourceInfo() {
87       return Record.getTypeSourceInfo();
88     }
89 
90     Decl *ReadDecl() {
91       return Record.readDecl();
92     }
93 
94     template<typename T>
95     T *ReadDeclAs() {
96       return Record.readDeclAs<T>();
97     }
98 
99     void ReadDeclarationNameLoc(DeclarationNameLoc &DNLoc,
100                                 DeclarationName Name) {
101       Record.readDeclarationNameLoc(DNLoc, Name);
102     }
103 
104     void ReadDeclarationNameInfo(DeclarationNameInfo &NameInfo) {
105       Record.readDeclarationNameInfo(NameInfo);
106     }
107 
108   public:
109     ASTStmtReader(ASTRecordReader &Record, llvm::BitstreamCursor &Cursor)
110         : Record(Record), DeclsCursor(Cursor) {}
111 
112     /// The number of record fields required for the Stmt class
113     /// itself.
114     static const unsigned NumStmtFields = 1;
115 
116     /// The number of record fields required for the Expr class
117     /// itself.
118     static const unsigned NumExprFields = NumStmtFields + 7;
119 
120     /// Read and initialize a ExplicitTemplateArgumentList structure.
121     void ReadTemplateKWAndArgsInfo(ASTTemplateKWAndArgsInfo &Args,
122                                    TemplateArgumentLoc *ArgsLocArray,
123                                    unsigned NumTemplateArgs);
124 
125     /// Read and initialize a ExplicitTemplateArgumentList structure.
126     void ReadExplicitTemplateArgumentList(ASTTemplateArgumentListInfo &ArgList,
127                                           unsigned NumTemplateArgs);
128 
129     void VisitStmt(Stmt *S);
130 #define STMT(Type, Base) \
131     void Visit##Type(Type *);
132 #include "clang/AST/StmtNodes.inc"
133   };
134 
135 } // namespace clang
136 
137 void ASTStmtReader::ReadTemplateKWAndArgsInfo(ASTTemplateKWAndArgsInfo &Args,
138                                               TemplateArgumentLoc *ArgsLocArray,
139                                               unsigned NumTemplateArgs) {
140   SourceLocation TemplateKWLoc = ReadSourceLocation();
141   TemplateArgumentListInfo ArgInfo;
142   ArgInfo.setLAngleLoc(ReadSourceLocation());
143   ArgInfo.setRAngleLoc(ReadSourceLocation());
144   for (unsigned i = 0; i != NumTemplateArgs; ++i)
145     ArgInfo.addArgument(Record.readTemplateArgumentLoc());
146   Args.initializeFrom(TemplateKWLoc, ArgInfo, ArgsLocArray);
147 }
148 
149 void ASTStmtReader::VisitStmt(Stmt *S) {
150   S->setIsOMPStructuredBlock(Record.readInt());
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->NullStmtBits.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->CompoundStmtBits.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   bool CaseStmtIsGNURange = Record.readInt();
181   S->setLHS(Record.readSubExpr());
182   S->setSubStmt(Record.readSubStmt());
183   if (CaseStmtIsGNURange) {
184     S->setRHS(Record.readSubExpr());
185     S->setEllipsisLoc(ReadSourceLocation());
186   }
187 }
188 
189 void ASTStmtReader::VisitDefaultStmt(DefaultStmt *S) {
190   VisitSwitchCase(S);
191   S->setSubStmt(Record.readSubStmt());
192 }
193 
194 void ASTStmtReader::VisitLabelStmt(LabelStmt *S) {
195   VisitStmt(S);
196   auto *LD = ReadDeclAs<LabelDecl>();
197   LD->setStmt(S);
198   S->setDecl(LD);
199   S->setSubStmt(Record.readSubStmt());
200   S->setIdentLoc(ReadSourceLocation());
201 }
202 
203 void ASTStmtReader::VisitAttributedStmt(AttributedStmt *S) {
204   VisitStmt(S);
205   // NumAttrs in AttributedStmt is set when creating an empty
206   // AttributedStmt in AttributedStmt::CreateEmpty, since it is needed
207   // to allocate the right amount of space for the trailing Attr *.
208   uint64_t NumAttrs = Record.readInt();
209   AttrVec Attrs;
210   Record.readAttributes(Attrs);
211   (void)NumAttrs;
212   assert(NumAttrs == S->AttributedStmtBits.NumAttrs);
213   assert(NumAttrs == Attrs.size());
214   std::copy(Attrs.begin(), Attrs.end(), S->getAttrArrayPtr());
215   S->SubStmt = Record.readSubStmt();
216   S->AttributedStmtBits.AttrLoc = ReadSourceLocation();
217 }
218 
219 void ASTStmtReader::VisitIfStmt(IfStmt *S) {
220   VisitStmt(S);
221 
222   S->setConstexpr(Record.readInt());
223   bool HasElse = Record.readInt();
224   bool HasVar = Record.readInt();
225   bool HasInit = Record.readInt();
226 
227   S->setCond(Record.readSubExpr());
228   S->setThen(Record.readSubStmt());
229   if (HasElse)
230     S->setElse(Record.readSubStmt());
231   if (HasVar)
232     S->setConditionVariable(Record.getContext(), ReadDeclAs<VarDecl>());
233   if (HasInit)
234     S->setInit(Record.readSubStmt());
235 
236   S->setIfLoc(ReadSourceLocation());
237   if (HasElse)
238     S->setElseLoc(ReadSourceLocation());
239 }
240 
241 void ASTStmtReader::VisitSwitchStmt(SwitchStmt *S) {
242   VisitStmt(S);
243 
244   bool HasInit = Record.readInt();
245   bool HasVar = Record.readInt();
246   bool AllEnumCasesCovered = Record.readInt();
247   if (AllEnumCasesCovered)
248     S->setAllEnumCasesCovered();
249 
250   S->setCond(Record.readSubExpr());
251   S->setBody(Record.readSubStmt());
252   if (HasInit)
253     S->setInit(Record.readSubStmt());
254   if (HasVar)
255     S->setConditionVariable(Record.getContext(), ReadDeclAs<VarDecl>());
256 
257   S->setSwitchLoc(ReadSourceLocation());
258 
259   SwitchCase *PrevSC = nullptr;
260   for (auto E = Record.size(); Record.getIdx() != E; ) {
261     SwitchCase *SC = Record.getSwitchCaseWithID(Record.readInt());
262     if (PrevSC)
263       PrevSC->setNextSwitchCase(SC);
264     else
265       S->setSwitchCaseList(SC);
266 
267     PrevSC = SC;
268   }
269 }
270 
271 void ASTStmtReader::VisitWhileStmt(WhileStmt *S) {
272   VisitStmt(S);
273 
274   bool HasVar = Record.readInt();
275 
276   S->setCond(Record.readSubExpr());
277   S->setBody(Record.readSubStmt());
278   if (HasVar)
279     S->setConditionVariable(Record.getContext(), ReadDeclAs<VarDecl>());
280 
281   S->setWhileLoc(ReadSourceLocation());
282 }
283 
284 void ASTStmtReader::VisitDoStmt(DoStmt *S) {
285   VisitStmt(S);
286   S->setCond(Record.readSubExpr());
287   S->setBody(Record.readSubStmt());
288   S->setDoLoc(ReadSourceLocation());
289   S->setWhileLoc(ReadSourceLocation());
290   S->setRParenLoc(ReadSourceLocation());
291 }
292 
293 void ASTStmtReader::VisitForStmt(ForStmt *S) {
294   VisitStmt(S);
295   S->setInit(Record.readSubStmt());
296   S->setCond(Record.readSubExpr());
297   S->setConditionVariable(Record.getContext(), ReadDeclAs<VarDecl>());
298   S->setInc(Record.readSubExpr());
299   S->setBody(Record.readSubStmt());
300   S->setForLoc(ReadSourceLocation());
301   S->setLParenLoc(ReadSourceLocation());
302   S->setRParenLoc(ReadSourceLocation());
303 }
304 
305 void ASTStmtReader::VisitGotoStmt(GotoStmt *S) {
306   VisitStmt(S);
307   S->setLabel(ReadDeclAs<LabelDecl>());
308   S->setGotoLoc(ReadSourceLocation());
309   S->setLabelLoc(ReadSourceLocation());
310 }
311 
312 void ASTStmtReader::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
313   VisitStmt(S);
314   S->setGotoLoc(ReadSourceLocation());
315   S->setStarLoc(ReadSourceLocation());
316   S->setTarget(Record.readSubExpr());
317 }
318 
319 void ASTStmtReader::VisitContinueStmt(ContinueStmt *S) {
320   VisitStmt(S);
321   S->setContinueLoc(ReadSourceLocation());
322 }
323 
324 void ASTStmtReader::VisitBreakStmt(BreakStmt *S) {
325   VisitStmt(S);
326   S->setBreakLoc(ReadSourceLocation());
327 }
328 
329 void ASTStmtReader::VisitReturnStmt(ReturnStmt *S) {
330   VisitStmt(S);
331 
332   bool HasNRVOCandidate = Record.readInt();
333 
334   S->setRetValue(Record.readSubExpr());
335   if (HasNRVOCandidate)
336     S->setNRVOCandidate(ReadDeclAs<VarDecl>());
337 
338   S->setReturnLoc(ReadSourceLocation());
339 }
340 
341 void ASTStmtReader::VisitDeclStmt(DeclStmt *S) {
342   VisitStmt(S);
343   S->setStartLoc(ReadSourceLocation());
344   S->setEndLoc(ReadSourceLocation());
345 
346   if (Record.size() - Record.getIdx() == 1) {
347     // Single declaration
348     S->setDeclGroup(DeclGroupRef(ReadDecl()));
349   } else {
350     SmallVector<Decl *, 16> Decls;
351     int N = Record.size() - Record.getIdx();
352     Decls.reserve(N);
353     for (int I = 0; I < N; ++I)
354       Decls.push_back(ReadDecl());
355     S->setDeclGroup(DeclGroupRef(DeclGroup::Create(Record.getContext(),
356                                                    Decls.data(),
357                                                    Decls.size())));
358   }
359 }
360 
361 void ASTStmtReader::VisitAsmStmt(AsmStmt *S) {
362   VisitStmt(S);
363   S->NumOutputs = Record.readInt();
364   S->NumInputs = Record.readInt();
365   S->NumClobbers = Record.readInt();
366   S->setAsmLoc(ReadSourceLocation());
367   S->setVolatile(Record.readInt());
368   S->setSimple(Record.readInt());
369 }
370 
371 void ASTStmtReader::VisitGCCAsmStmt(GCCAsmStmt *S) {
372   VisitAsmStmt(S);
373   S->NumLabels = Record.readInt();
374   S->setRParenLoc(ReadSourceLocation());
375   S->setAsmString(cast_or_null<StringLiteral>(Record.readSubStmt()));
376 
377   unsigned NumOutputs = S->getNumOutputs();
378   unsigned NumInputs = S->getNumInputs();
379   unsigned NumClobbers = S->getNumClobbers();
380   unsigned NumLabels = S->getNumLabels();
381 
382   // Outputs and inputs
383   SmallVector<IdentifierInfo *, 16> Names;
384   SmallVector<StringLiteral*, 16> Constraints;
385   SmallVector<Stmt*, 16> Exprs;
386   for (unsigned I = 0, N = NumOutputs + NumInputs; I != N; ++I) {
387     Names.push_back(Record.getIdentifierInfo());
388     Constraints.push_back(cast_or_null<StringLiteral>(Record.readSubStmt()));
389     Exprs.push_back(Record.readSubStmt());
390   }
391 
392   // Constraints
393   SmallVector<StringLiteral*, 16> Clobbers;
394   for (unsigned I = 0; I != NumClobbers; ++I)
395     Clobbers.push_back(cast_or_null<StringLiteral>(Record.readSubStmt()));
396 
397   // Labels
398   for (unsigned I = 0, N = NumLabels; I != N; ++I)
399     Exprs.push_back(Record.readSubStmt());
400 
401   S->setOutputsAndInputsAndClobbers(Record.getContext(),
402                                     Names.data(), Constraints.data(),
403                                     Exprs.data(), NumOutputs, NumInputs,
404                                     NumLabels,
405                                     Clobbers.data(), NumClobbers);
406 }
407 
408 void ASTStmtReader::VisitMSAsmStmt(MSAsmStmt *S) {
409   VisitAsmStmt(S);
410   S->LBraceLoc = ReadSourceLocation();
411   S->EndLoc = ReadSourceLocation();
412   S->NumAsmToks = Record.readInt();
413   std::string AsmStr = ReadString();
414 
415   // Read the tokens.
416   SmallVector<Token, 16> AsmToks;
417   AsmToks.reserve(S->NumAsmToks);
418   for (unsigned i = 0, e = S->NumAsmToks; i != e; ++i) {
419     AsmToks.push_back(Record.readToken());
420   }
421 
422   // The calls to reserve() for the FooData vectors are mandatory to
423   // prevent dead StringRefs in the Foo vectors.
424 
425   // Read the clobbers.
426   SmallVector<std::string, 16> ClobbersData;
427   SmallVector<StringRef, 16> Clobbers;
428   ClobbersData.reserve(S->NumClobbers);
429   Clobbers.reserve(S->NumClobbers);
430   for (unsigned i = 0, e = S->NumClobbers; i != e; ++i) {
431     ClobbersData.push_back(ReadString());
432     Clobbers.push_back(ClobbersData.back());
433   }
434 
435   // Read the operands.
436   unsigned NumOperands = S->NumOutputs + S->NumInputs;
437   SmallVector<Expr*, 16> Exprs;
438   SmallVector<std::string, 16> ConstraintsData;
439   SmallVector<StringRef, 16> Constraints;
440   Exprs.reserve(NumOperands);
441   ConstraintsData.reserve(NumOperands);
442   Constraints.reserve(NumOperands);
443   for (unsigned i = 0; i != NumOperands; ++i) {
444     Exprs.push_back(cast<Expr>(Record.readSubStmt()));
445     ConstraintsData.push_back(ReadString());
446     Constraints.push_back(ConstraintsData.back());
447   }
448 
449   S->initialize(Record.getContext(), AsmStr, AsmToks,
450                 Constraints, Exprs, Clobbers);
451 }
452 
453 void ASTStmtReader::VisitCoroutineBodyStmt(CoroutineBodyStmt *S) {
454   VisitStmt(S);
455   assert(Record.peekInt() == S->NumParams);
456   Record.skipInts(1);
457   auto *StoredStmts = S->getStoredStmts();
458   for (unsigned i = 0;
459        i < CoroutineBodyStmt::SubStmt::FirstParamMove + S->NumParams; ++i)
460     StoredStmts[i] = Record.readSubStmt();
461 }
462 
463 void ASTStmtReader::VisitCoreturnStmt(CoreturnStmt *S) {
464   VisitStmt(S);
465   S->CoreturnLoc = Record.readSourceLocation();
466   for (auto &SubStmt: S->SubStmts)
467     SubStmt = Record.readSubStmt();
468   S->IsImplicit = Record.readInt() != 0;
469 }
470 
471 void ASTStmtReader::VisitCoawaitExpr(CoawaitExpr *E) {
472   VisitExpr(E);
473   E->KeywordLoc = ReadSourceLocation();
474   for (auto &SubExpr: E->SubExprs)
475     SubExpr = Record.readSubStmt();
476   E->OpaqueValue = cast_or_null<OpaqueValueExpr>(Record.readSubStmt());
477   E->setIsImplicit(Record.readInt() != 0);
478 }
479 
480 void ASTStmtReader::VisitCoyieldExpr(CoyieldExpr *E) {
481   VisitExpr(E);
482   E->KeywordLoc = ReadSourceLocation();
483   for (auto &SubExpr: E->SubExprs)
484     SubExpr = Record.readSubStmt();
485   E->OpaqueValue = cast_or_null<OpaqueValueExpr>(Record.readSubStmt());
486 }
487 
488 void ASTStmtReader::VisitDependentCoawaitExpr(DependentCoawaitExpr *E) {
489   VisitExpr(E);
490   E->KeywordLoc = ReadSourceLocation();
491   for (auto &SubExpr: E->SubExprs)
492     SubExpr = Record.readSubStmt();
493 }
494 
495 void ASTStmtReader::VisitCapturedStmt(CapturedStmt *S) {
496   VisitStmt(S);
497   Record.skipInts(1);
498   S->setCapturedDecl(ReadDeclAs<CapturedDecl>());
499   S->setCapturedRegionKind(static_cast<CapturedRegionKind>(Record.readInt()));
500   S->setCapturedRecordDecl(ReadDeclAs<RecordDecl>());
501 
502   // Capture inits
503   for (CapturedStmt::capture_init_iterator I = S->capture_init_begin(),
504                                            E = S->capture_init_end();
505        I != E; ++I)
506     *I = Record.readSubExpr();
507 
508   // Body
509   S->setCapturedStmt(Record.readSubStmt());
510   S->getCapturedDecl()->setBody(S->getCapturedStmt());
511 
512   // Captures
513   for (auto &I : S->captures()) {
514     I.VarAndKind.setPointer(ReadDeclAs<VarDecl>());
515     I.VarAndKind.setInt(
516         static_cast<CapturedStmt::VariableCaptureKind>(Record.readInt()));
517     I.Loc = ReadSourceLocation();
518   }
519 }
520 
521 void ASTStmtReader::VisitExpr(Expr *E) {
522   VisitStmt(E);
523   E->setType(Record.readType());
524   E->setTypeDependent(Record.readInt());
525   E->setValueDependent(Record.readInt());
526   E->setInstantiationDependent(Record.readInt());
527   E->ExprBits.ContainsUnexpandedParameterPack = Record.readInt();
528   E->setValueKind(static_cast<ExprValueKind>(Record.readInt()));
529   E->setObjectKind(static_cast<ExprObjectKind>(Record.readInt()));
530   assert(Record.getIdx() == NumExprFields &&
531          "Incorrect expression field count");
532 }
533 
534 void ASTStmtReader::VisitConstantExpr(ConstantExpr *E) {
535   VisitExpr(E);
536   E->ConstantExprBits.ResultKind = Record.readInt();
537   switch (E->ConstantExprBits.ResultKind) {
538   case ConstantExpr::RSK_Int64: {
539     E->Int64Result() = Record.readInt();
540     uint64_t tmp = Record.readInt();
541     E->ConstantExprBits.IsUnsigned = tmp & 0x1;
542     E->ConstantExprBits.BitWidth = tmp >> 1;
543     break;
544   }
545   case ConstantExpr::RSK_APValue:
546     E->APValueResult() = Record.readAPValue();
547   }
548   E->setSubExpr(Record.readSubExpr());
549 }
550 
551 void ASTStmtReader::VisitPredefinedExpr(PredefinedExpr *E) {
552   VisitExpr(E);
553   bool HasFunctionName = Record.readInt();
554   E->PredefinedExprBits.HasFunctionName = HasFunctionName;
555   E->PredefinedExprBits.Kind = Record.readInt();
556   E->setLocation(ReadSourceLocation());
557   if (HasFunctionName)
558     E->setFunctionName(cast<StringLiteral>(Record.readSubExpr()));
559 }
560 
561 void ASTStmtReader::VisitDeclRefExpr(DeclRefExpr *E) {
562   VisitExpr(E);
563 
564   E->DeclRefExprBits.HasQualifier = Record.readInt();
565   E->DeclRefExprBits.HasFoundDecl = Record.readInt();
566   E->DeclRefExprBits.HasTemplateKWAndArgsInfo = Record.readInt();
567   E->DeclRefExprBits.HadMultipleCandidates = Record.readInt();
568   E->DeclRefExprBits.RefersToEnclosingVariableOrCapture = Record.readInt();
569   E->DeclRefExprBits.NonOdrUseReason = Record.readInt();
570   unsigned NumTemplateArgs = 0;
571   if (E->hasTemplateKWAndArgsInfo())
572     NumTemplateArgs = Record.readInt();
573 
574   if (E->hasQualifier())
575     new (E->getTrailingObjects<NestedNameSpecifierLoc>())
576         NestedNameSpecifierLoc(Record.readNestedNameSpecifierLoc());
577 
578   if (E->hasFoundDecl())
579     *E->getTrailingObjects<NamedDecl *>() = ReadDeclAs<NamedDecl>();
580 
581   if (E->hasTemplateKWAndArgsInfo())
582     ReadTemplateKWAndArgsInfo(
583         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
584         E->getTrailingObjects<TemplateArgumentLoc>(), NumTemplateArgs);
585 
586   E->setDecl(ReadDeclAs<ValueDecl>());
587   E->setLocation(ReadSourceLocation());
588   ReadDeclarationNameLoc(E->DNLoc, E->getDecl()->getDeclName());
589 }
590 
591 void ASTStmtReader::VisitIntegerLiteral(IntegerLiteral *E) {
592   VisitExpr(E);
593   E->setLocation(ReadSourceLocation());
594   E->setValue(Record.getContext(), Record.readAPInt());
595 }
596 
597 void ASTStmtReader::VisitFixedPointLiteral(FixedPointLiteral *E) {
598   VisitExpr(E);
599   E->setLocation(ReadSourceLocation());
600   E->setValue(Record.getContext(), Record.readAPInt());
601 }
602 
603 void ASTStmtReader::VisitFloatingLiteral(FloatingLiteral *E) {
604   VisitExpr(E);
605   E->setRawSemantics(
606       static_cast<llvm::APFloatBase::Semantics>(Record.readInt()));
607   E->setExact(Record.readInt());
608   E->setValue(Record.getContext(), Record.readAPFloat(E->getSemantics()));
609   E->setLocation(ReadSourceLocation());
610 }
611 
612 void ASTStmtReader::VisitImaginaryLiteral(ImaginaryLiteral *E) {
613   VisitExpr(E);
614   E->setSubExpr(Record.readSubExpr());
615 }
616 
617 void ASTStmtReader::VisitStringLiteral(StringLiteral *E) {
618   VisitExpr(E);
619 
620   // NumConcatenated, Length and CharByteWidth are set by the empty
621   // ctor since they are needed to allocate storage for the trailing objects.
622   unsigned NumConcatenated = Record.readInt();
623   unsigned Length = Record.readInt();
624   unsigned CharByteWidth = Record.readInt();
625   assert((NumConcatenated == E->getNumConcatenated()) &&
626          "Wrong number of concatenated tokens!");
627   assert((Length == E->getLength()) && "Wrong Length!");
628   assert((CharByteWidth == E->getCharByteWidth()) && "Wrong character width!");
629   E->StringLiteralBits.Kind = Record.readInt();
630   E->StringLiteralBits.IsPascal = Record.readInt();
631 
632   // The character width is originally computed via mapCharByteWidth.
633   // Check that the deserialized character width is consistant with the result
634   // of calling mapCharByteWidth.
635   assert((CharByteWidth ==
636           StringLiteral::mapCharByteWidth(Record.getContext().getTargetInfo(),
637                                           E->getKind())) &&
638          "Wrong character width!");
639 
640   // Deserialize the trailing array of SourceLocation.
641   for (unsigned I = 0; I < NumConcatenated; ++I)
642     E->setStrTokenLoc(I, ReadSourceLocation());
643 
644   // Deserialize the trailing array of char holding the string data.
645   char *StrData = E->getStrDataAsChar();
646   for (unsigned I = 0; I < Length * CharByteWidth; ++I)
647     StrData[I] = Record.readInt();
648 }
649 
650 void ASTStmtReader::VisitCharacterLiteral(CharacterLiteral *E) {
651   VisitExpr(E);
652   E->setValue(Record.readInt());
653   E->setLocation(ReadSourceLocation());
654   E->setKind(static_cast<CharacterLiteral::CharacterKind>(Record.readInt()));
655 }
656 
657 void ASTStmtReader::VisitParenExpr(ParenExpr *E) {
658   VisitExpr(E);
659   E->setLParen(ReadSourceLocation());
660   E->setRParen(ReadSourceLocation());
661   E->setSubExpr(Record.readSubExpr());
662 }
663 
664 void ASTStmtReader::VisitParenListExpr(ParenListExpr *E) {
665   VisitExpr(E);
666   unsigned NumExprs = Record.readInt();
667   assert((NumExprs == E->getNumExprs()) && "Wrong NumExprs!");
668   for (unsigned I = 0; I != NumExprs; ++I)
669     E->getTrailingObjects<Stmt *>()[I] = Record.readSubStmt();
670   E->LParenLoc = ReadSourceLocation();
671   E->RParenLoc = ReadSourceLocation();
672 }
673 
674 void ASTStmtReader::VisitUnaryOperator(UnaryOperator *E) {
675   VisitExpr(E);
676   E->setSubExpr(Record.readSubExpr());
677   E->setOpcode((UnaryOperator::Opcode)Record.readInt());
678   E->setOperatorLoc(ReadSourceLocation());
679   E->setCanOverflow(Record.readInt());
680 }
681 
682 void ASTStmtReader::VisitOffsetOfExpr(OffsetOfExpr *E) {
683   VisitExpr(E);
684   assert(E->getNumComponents() == Record.peekInt());
685   Record.skipInts(1);
686   assert(E->getNumExpressions() == Record.peekInt());
687   Record.skipInts(1);
688   E->setOperatorLoc(ReadSourceLocation());
689   E->setRParenLoc(ReadSourceLocation());
690   E->setTypeSourceInfo(GetTypeSourceInfo());
691   for (unsigned I = 0, N = E->getNumComponents(); I != N; ++I) {
692     auto Kind = static_cast<OffsetOfNode::Kind>(Record.readInt());
693     SourceLocation Start = ReadSourceLocation();
694     SourceLocation End = ReadSourceLocation();
695     switch (Kind) {
696     case OffsetOfNode::Array:
697       E->setComponent(I, OffsetOfNode(Start, Record.readInt(), End));
698       break;
699 
700     case OffsetOfNode::Field:
701       E->setComponent(
702           I, OffsetOfNode(Start, ReadDeclAs<FieldDecl>(), End));
703       break;
704 
705     case OffsetOfNode::Identifier:
706       E->setComponent(
707           I,
708           OffsetOfNode(Start, Record.getIdentifierInfo(), End));
709       break;
710 
711     case OffsetOfNode::Base: {
712       auto *Base = new (Record.getContext()) CXXBaseSpecifier();
713       *Base = Record.readCXXBaseSpecifier();
714       E->setComponent(I, OffsetOfNode(Base));
715       break;
716     }
717     }
718   }
719 
720   for (unsigned I = 0, N = E->getNumExpressions(); I != N; ++I)
721     E->setIndexExpr(I, Record.readSubExpr());
722 }
723 
724 void ASTStmtReader::VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr *E) {
725   VisitExpr(E);
726   E->setKind(static_cast<UnaryExprOrTypeTrait>(Record.readInt()));
727   if (Record.peekInt() == 0) {
728     E->setArgument(Record.readSubExpr());
729     Record.skipInts(1);
730   } else {
731     E->setArgument(GetTypeSourceInfo());
732   }
733   E->setOperatorLoc(ReadSourceLocation());
734   E->setRParenLoc(ReadSourceLocation());
735 }
736 
737 void ASTStmtReader::VisitConceptSpecializationExpr(
738         ConceptSpecializationExpr *E) {
739   VisitExpr(E);
740   unsigned NumTemplateArgs = Record.readInt();
741   E->NestedNameSpec = Record.readNestedNameSpecifierLoc();
742   E->TemplateKWLoc = Record.readSourceLocation();
743   E->ConceptNameLoc = Record.readSourceLocation();
744   E->FoundDecl = ReadDeclAs<NamedDecl>();
745   E->NamedConcept.setPointer(ReadDeclAs<ConceptDecl>());
746   const ASTTemplateArgumentListInfo *ArgsAsWritten =
747       Record.readASTTemplateArgumentListInfo();
748   llvm::SmallVector<TemplateArgument, 4> Args;
749   for (unsigned I = 0; I < NumTemplateArgs; ++I)
750     Args.push_back(Record.readTemplateArgument());
751   E->setTemplateArguments(ArgsAsWritten, Args);
752   E->NamedConcept.setInt(Record.readInt() == 1);
753 }
754 
755 void ASTStmtReader::VisitArraySubscriptExpr(ArraySubscriptExpr *E) {
756   VisitExpr(E);
757   E->setLHS(Record.readSubExpr());
758   E->setRHS(Record.readSubExpr());
759   E->setRBracketLoc(ReadSourceLocation());
760 }
761 
762 void ASTStmtReader::VisitOMPArraySectionExpr(OMPArraySectionExpr *E) {
763   VisitExpr(E);
764   E->setBase(Record.readSubExpr());
765   E->setLowerBound(Record.readSubExpr());
766   E->setLength(Record.readSubExpr());
767   E->setColonLoc(ReadSourceLocation());
768   E->setRBracketLoc(ReadSourceLocation());
769 }
770 
771 void ASTStmtReader::VisitCallExpr(CallExpr *E) {
772   VisitExpr(E);
773   unsigned NumArgs = Record.readInt();
774   assert((NumArgs == E->getNumArgs()) && "Wrong NumArgs!");
775   E->setRParenLoc(ReadSourceLocation());
776   E->setCallee(Record.readSubExpr());
777   for (unsigned I = 0; I != NumArgs; ++I)
778     E->setArg(I, Record.readSubExpr());
779   E->setADLCallKind(static_cast<CallExpr::ADLCallKind>(Record.readInt()));
780 }
781 
782 void ASTStmtReader::VisitCXXMemberCallExpr(CXXMemberCallExpr *E) {
783   VisitCallExpr(E);
784 }
785 
786 void ASTStmtReader::VisitMemberExpr(MemberExpr *E) {
787   VisitExpr(E);
788 
789   bool HasQualifier = Record.readInt();
790   bool HasFoundDecl = Record.readInt();
791   bool HasTemplateInfo = Record.readInt();
792   unsigned NumTemplateArgs = Record.readInt();
793 
794   E->Base = Record.readSubExpr();
795   E->MemberDecl = Record.readDeclAs<ValueDecl>();
796   Record.readDeclarationNameLoc(E->MemberDNLoc, E->MemberDecl->getDeclName());
797   E->MemberLoc = Record.readSourceLocation();
798   E->MemberExprBits.IsArrow = Record.readInt();
799   E->MemberExprBits.HasQualifierOrFoundDecl = HasQualifier || HasFoundDecl;
800   E->MemberExprBits.HasTemplateKWAndArgsInfo = HasTemplateInfo;
801   E->MemberExprBits.HadMultipleCandidates = Record.readInt();
802   E->MemberExprBits.NonOdrUseReason = Record.readInt();
803   E->MemberExprBits.OperatorLoc = Record.readSourceLocation();
804 
805   if (HasQualifier || HasFoundDecl) {
806     DeclAccessPair FoundDecl;
807     if (HasFoundDecl) {
808       auto *FoundD = Record.readDeclAs<NamedDecl>();
809       auto AS = (AccessSpecifier)Record.readInt();
810       FoundDecl = DeclAccessPair::make(FoundD, AS);
811     } else {
812       FoundDecl = DeclAccessPair::make(E->MemberDecl,
813                                        E->MemberDecl->getAccess());
814     }
815     E->getTrailingObjects<MemberExprNameQualifier>()->FoundDecl = FoundDecl;
816 
817     NestedNameSpecifierLoc QualifierLoc;
818     if (HasQualifier)
819       QualifierLoc = Record.readNestedNameSpecifierLoc();
820     E->getTrailingObjects<MemberExprNameQualifier>()->QualifierLoc =
821         QualifierLoc;
822   }
823 
824   if (HasTemplateInfo)
825     ReadTemplateKWAndArgsInfo(
826         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
827         E->getTrailingObjects<TemplateArgumentLoc>(), NumTemplateArgs);
828 }
829 
830 void ASTStmtReader::VisitObjCIsaExpr(ObjCIsaExpr *E) {
831   VisitExpr(E);
832   E->setBase(Record.readSubExpr());
833   E->setIsaMemberLoc(ReadSourceLocation());
834   E->setOpLoc(ReadSourceLocation());
835   E->setArrow(Record.readInt());
836 }
837 
838 void ASTStmtReader::
839 VisitObjCIndirectCopyRestoreExpr(ObjCIndirectCopyRestoreExpr *E) {
840   VisitExpr(E);
841   E->Operand = Record.readSubExpr();
842   E->setShouldCopy(Record.readInt());
843 }
844 
845 void ASTStmtReader::VisitObjCBridgedCastExpr(ObjCBridgedCastExpr *E) {
846   VisitExplicitCastExpr(E);
847   E->LParenLoc = ReadSourceLocation();
848   E->BridgeKeywordLoc = ReadSourceLocation();
849   E->Kind = Record.readInt();
850 }
851 
852 void ASTStmtReader::VisitCastExpr(CastExpr *E) {
853   VisitExpr(E);
854   unsigned NumBaseSpecs = Record.readInt();
855   assert(NumBaseSpecs == E->path_size());
856   E->setSubExpr(Record.readSubExpr());
857   E->setCastKind((CastKind)Record.readInt());
858   CastExpr::path_iterator BaseI = E->path_begin();
859   while (NumBaseSpecs--) {
860     auto *BaseSpec = new (Record.getContext()) CXXBaseSpecifier;
861     *BaseSpec = Record.readCXXBaseSpecifier();
862     *BaseI++ = BaseSpec;
863   }
864 }
865 
866 void ASTStmtReader::VisitBinaryOperator(BinaryOperator *E) {
867   VisitExpr(E);
868   E->setLHS(Record.readSubExpr());
869   E->setRHS(Record.readSubExpr());
870   E->setOpcode((BinaryOperator::Opcode)Record.readInt());
871   E->setOperatorLoc(ReadSourceLocation());
872   E->setFPFeatures(FPOptions(Record.readInt()));
873 }
874 
875 void ASTStmtReader::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
876   VisitBinaryOperator(E);
877   E->setComputationLHSType(Record.readType());
878   E->setComputationResultType(Record.readType());
879 }
880 
881 void ASTStmtReader::VisitConditionalOperator(ConditionalOperator *E) {
882   VisitExpr(E);
883   E->SubExprs[ConditionalOperator::COND] = Record.readSubExpr();
884   E->SubExprs[ConditionalOperator::LHS] = Record.readSubExpr();
885   E->SubExprs[ConditionalOperator::RHS] = Record.readSubExpr();
886   E->QuestionLoc = ReadSourceLocation();
887   E->ColonLoc = ReadSourceLocation();
888 }
889 
890 void
891 ASTStmtReader::VisitBinaryConditionalOperator(BinaryConditionalOperator *E) {
892   VisitExpr(E);
893   E->OpaqueValue = cast<OpaqueValueExpr>(Record.readSubExpr());
894   E->SubExprs[BinaryConditionalOperator::COMMON] = Record.readSubExpr();
895   E->SubExprs[BinaryConditionalOperator::COND] = Record.readSubExpr();
896   E->SubExprs[BinaryConditionalOperator::LHS] = Record.readSubExpr();
897   E->SubExprs[BinaryConditionalOperator::RHS] = Record.readSubExpr();
898   E->QuestionLoc = ReadSourceLocation();
899   E->ColonLoc = ReadSourceLocation();
900 }
901 
902 void ASTStmtReader::VisitImplicitCastExpr(ImplicitCastExpr *E) {
903   VisitCastExpr(E);
904   E->setIsPartOfExplicitCast(Record.readInt());
905 }
906 
907 void ASTStmtReader::VisitExplicitCastExpr(ExplicitCastExpr *E) {
908   VisitCastExpr(E);
909   E->setTypeInfoAsWritten(GetTypeSourceInfo());
910 }
911 
912 void ASTStmtReader::VisitCStyleCastExpr(CStyleCastExpr *E) {
913   VisitExplicitCastExpr(E);
914   E->setLParenLoc(ReadSourceLocation());
915   E->setRParenLoc(ReadSourceLocation());
916 }
917 
918 void ASTStmtReader::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) {
919   VisitExpr(E);
920   E->setLParenLoc(ReadSourceLocation());
921   E->setTypeSourceInfo(GetTypeSourceInfo());
922   E->setInitializer(Record.readSubExpr());
923   E->setFileScope(Record.readInt());
924 }
925 
926 void ASTStmtReader::VisitExtVectorElementExpr(ExtVectorElementExpr *E) {
927   VisitExpr(E);
928   E->setBase(Record.readSubExpr());
929   E->setAccessor(Record.getIdentifierInfo());
930   E->setAccessorLoc(ReadSourceLocation());
931 }
932 
933 void ASTStmtReader::VisitInitListExpr(InitListExpr *E) {
934   VisitExpr(E);
935   if (auto *SyntForm = cast_or_null<InitListExpr>(Record.readSubStmt()))
936     E->setSyntacticForm(SyntForm);
937   E->setLBraceLoc(ReadSourceLocation());
938   E->setRBraceLoc(ReadSourceLocation());
939   bool isArrayFiller = Record.readInt();
940   Expr *filler = nullptr;
941   if (isArrayFiller) {
942     filler = Record.readSubExpr();
943     E->ArrayFillerOrUnionFieldInit = filler;
944   } else
945     E->ArrayFillerOrUnionFieldInit = ReadDeclAs<FieldDecl>();
946   E->sawArrayRangeDesignator(Record.readInt());
947   unsigned NumInits = Record.readInt();
948   E->reserveInits(Record.getContext(), NumInits);
949   if (isArrayFiller) {
950     for (unsigned I = 0; I != NumInits; ++I) {
951       Expr *init = Record.readSubExpr();
952       E->updateInit(Record.getContext(), I, init ? init : filler);
953     }
954   } else {
955     for (unsigned I = 0; I != NumInits; ++I)
956       E->updateInit(Record.getContext(), I, Record.readSubExpr());
957   }
958 }
959 
960 void ASTStmtReader::VisitDesignatedInitExpr(DesignatedInitExpr *E) {
961   using Designator = DesignatedInitExpr::Designator;
962 
963   VisitExpr(E);
964   unsigned NumSubExprs = Record.readInt();
965   assert(NumSubExprs == E->getNumSubExprs() && "Wrong number of subexprs");
966   for (unsigned I = 0; I != NumSubExprs; ++I)
967     E->setSubExpr(I, Record.readSubExpr());
968   E->setEqualOrColonLoc(ReadSourceLocation());
969   E->setGNUSyntax(Record.readInt());
970 
971   SmallVector<Designator, 4> Designators;
972   while (Record.getIdx() < Record.size()) {
973     switch ((DesignatorTypes)Record.readInt()) {
974     case DESIG_FIELD_DECL: {
975       auto *Field = ReadDeclAs<FieldDecl>();
976       SourceLocation DotLoc = ReadSourceLocation();
977       SourceLocation FieldLoc = ReadSourceLocation();
978       Designators.push_back(Designator(Field->getIdentifier(), DotLoc,
979                                        FieldLoc));
980       Designators.back().setField(Field);
981       break;
982     }
983 
984     case DESIG_FIELD_NAME: {
985       const IdentifierInfo *Name = Record.getIdentifierInfo();
986       SourceLocation DotLoc = ReadSourceLocation();
987       SourceLocation FieldLoc = ReadSourceLocation();
988       Designators.push_back(Designator(Name, DotLoc, FieldLoc));
989       break;
990     }
991 
992     case DESIG_ARRAY: {
993       unsigned Index = Record.readInt();
994       SourceLocation LBracketLoc = ReadSourceLocation();
995       SourceLocation RBracketLoc = ReadSourceLocation();
996       Designators.push_back(Designator(Index, LBracketLoc, RBracketLoc));
997       break;
998     }
999 
1000     case DESIG_ARRAY_RANGE: {
1001       unsigned Index = Record.readInt();
1002       SourceLocation LBracketLoc = ReadSourceLocation();
1003       SourceLocation EllipsisLoc = ReadSourceLocation();
1004       SourceLocation RBracketLoc = ReadSourceLocation();
1005       Designators.push_back(Designator(Index, LBracketLoc, EllipsisLoc,
1006                                        RBracketLoc));
1007       break;
1008     }
1009     }
1010   }
1011   E->setDesignators(Record.getContext(),
1012                     Designators.data(), Designators.size());
1013 }
1014 
1015 void ASTStmtReader::VisitDesignatedInitUpdateExpr(DesignatedInitUpdateExpr *E) {
1016   VisitExpr(E);
1017   E->setBase(Record.readSubExpr());
1018   E->setUpdater(Record.readSubExpr());
1019 }
1020 
1021 void ASTStmtReader::VisitNoInitExpr(NoInitExpr *E) {
1022   VisitExpr(E);
1023 }
1024 
1025 void ASTStmtReader::VisitArrayInitLoopExpr(ArrayInitLoopExpr *E) {
1026   VisitExpr(E);
1027   E->SubExprs[0] = Record.readSubExpr();
1028   E->SubExprs[1] = Record.readSubExpr();
1029 }
1030 
1031 void ASTStmtReader::VisitArrayInitIndexExpr(ArrayInitIndexExpr *E) {
1032   VisitExpr(E);
1033 }
1034 
1035 void ASTStmtReader::VisitImplicitValueInitExpr(ImplicitValueInitExpr *E) {
1036   VisitExpr(E);
1037 }
1038 
1039 void ASTStmtReader::VisitVAArgExpr(VAArgExpr *E) {
1040   VisitExpr(E);
1041   E->setSubExpr(Record.readSubExpr());
1042   E->setWrittenTypeInfo(GetTypeSourceInfo());
1043   E->setBuiltinLoc(ReadSourceLocation());
1044   E->setRParenLoc(ReadSourceLocation());
1045   E->setIsMicrosoftABI(Record.readInt());
1046 }
1047 
1048 void ASTStmtReader::VisitSourceLocExpr(SourceLocExpr *E) {
1049   VisitExpr(E);
1050   E->ParentContext = ReadDeclAs<DeclContext>();
1051   E->BuiltinLoc = ReadSourceLocation();
1052   E->RParenLoc = ReadSourceLocation();
1053   E->SourceLocExprBits.Kind =
1054       static_cast<SourceLocExpr::IdentKind>(Record.readInt());
1055 }
1056 
1057 void ASTStmtReader::VisitAddrLabelExpr(AddrLabelExpr *E) {
1058   VisitExpr(E);
1059   E->setAmpAmpLoc(ReadSourceLocation());
1060   E->setLabelLoc(ReadSourceLocation());
1061   E->setLabel(ReadDeclAs<LabelDecl>());
1062 }
1063 
1064 void ASTStmtReader::VisitStmtExpr(StmtExpr *E) {
1065   VisitExpr(E);
1066   E->setLParenLoc(ReadSourceLocation());
1067   E->setRParenLoc(ReadSourceLocation());
1068   E->setSubStmt(cast_or_null<CompoundStmt>(Record.readSubStmt()));
1069 }
1070 
1071 void ASTStmtReader::VisitChooseExpr(ChooseExpr *E) {
1072   VisitExpr(E);
1073   E->setCond(Record.readSubExpr());
1074   E->setLHS(Record.readSubExpr());
1075   E->setRHS(Record.readSubExpr());
1076   E->setBuiltinLoc(ReadSourceLocation());
1077   E->setRParenLoc(ReadSourceLocation());
1078   E->setIsConditionTrue(Record.readInt());
1079 }
1080 
1081 void ASTStmtReader::VisitGNUNullExpr(GNUNullExpr *E) {
1082   VisitExpr(E);
1083   E->setTokenLocation(ReadSourceLocation());
1084 }
1085 
1086 void ASTStmtReader::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
1087   VisitExpr(E);
1088   SmallVector<Expr *, 16> Exprs;
1089   unsigned NumExprs = Record.readInt();
1090   while (NumExprs--)
1091     Exprs.push_back(Record.readSubExpr());
1092   E->setExprs(Record.getContext(), Exprs);
1093   E->setBuiltinLoc(ReadSourceLocation());
1094   E->setRParenLoc(ReadSourceLocation());
1095 }
1096 
1097 void ASTStmtReader::VisitConvertVectorExpr(ConvertVectorExpr *E) {
1098   VisitExpr(E);
1099   E->BuiltinLoc = ReadSourceLocation();
1100   E->RParenLoc = ReadSourceLocation();
1101   E->TInfo = GetTypeSourceInfo();
1102   E->SrcExpr = Record.readSubExpr();
1103 }
1104 
1105 void ASTStmtReader::VisitBlockExpr(BlockExpr *E) {
1106   VisitExpr(E);
1107   E->setBlockDecl(ReadDeclAs<BlockDecl>());
1108 }
1109 
1110 void ASTStmtReader::VisitGenericSelectionExpr(GenericSelectionExpr *E) {
1111   VisitExpr(E);
1112 
1113   unsigned NumAssocs = Record.readInt();
1114   assert(NumAssocs == E->getNumAssocs() && "Wrong NumAssocs!");
1115   E->ResultIndex = Record.readInt();
1116   E->GenericSelectionExprBits.GenericLoc = ReadSourceLocation();
1117   E->DefaultLoc = ReadSourceLocation();
1118   E->RParenLoc = ReadSourceLocation();
1119 
1120   Stmt **Stmts = E->getTrailingObjects<Stmt *>();
1121   // Add 1 to account for the controlling expression which is the first
1122   // expression in the trailing array of Stmt *. This is not needed for
1123   // the trailing array of TypeSourceInfo *.
1124   for (unsigned I = 0, N = NumAssocs + 1; I < N; ++I)
1125     Stmts[I] = Record.readSubExpr();
1126 
1127   TypeSourceInfo **TSIs = E->getTrailingObjects<TypeSourceInfo *>();
1128   for (unsigned I = 0, N = NumAssocs; I < N; ++I)
1129     TSIs[I] = GetTypeSourceInfo();
1130 }
1131 
1132 void ASTStmtReader::VisitPseudoObjectExpr(PseudoObjectExpr *E) {
1133   VisitExpr(E);
1134   unsigned numSemanticExprs = Record.readInt();
1135   assert(numSemanticExprs + 1 == E->PseudoObjectExprBits.NumSubExprs);
1136   E->PseudoObjectExprBits.ResultIndex = Record.readInt();
1137 
1138   // Read the syntactic expression.
1139   E->getSubExprsBuffer()[0] = Record.readSubExpr();
1140 
1141   // Read all the semantic expressions.
1142   for (unsigned i = 0; i != numSemanticExprs; ++i) {
1143     Expr *subExpr = Record.readSubExpr();
1144     E->getSubExprsBuffer()[i+1] = subExpr;
1145   }
1146 }
1147 
1148 void ASTStmtReader::VisitAtomicExpr(AtomicExpr *E) {
1149   VisitExpr(E);
1150   E->Op = AtomicExpr::AtomicOp(Record.readInt());
1151   E->NumSubExprs = AtomicExpr::getNumSubExprs(E->Op);
1152   for (unsigned I = 0; I != E->NumSubExprs; ++I)
1153     E->SubExprs[I] = Record.readSubExpr();
1154   E->BuiltinLoc = ReadSourceLocation();
1155   E->RParenLoc = ReadSourceLocation();
1156 }
1157 
1158 //===----------------------------------------------------------------------===//
1159 // Objective-C Expressions and Statements
1160 
1161 void ASTStmtReader::VisitObjCStringLiteral(ObjCStringLiteral *E) {
1162   VisitExpr(E);
1163   E->setString(cast<StringLiteral>(Record.readSubStmt()));
1164   E->setAtLoc(ReadSourceLocation());
1165 }
1166 
1167 void ASTStmtReader::VisitObjCBoxedExpr(ObjCBoxedExpr *E) {
1168   VisitExpr(E);
1169   // could be one of several IntegerLiteral, FloatLiteral, etc.
1170   E->SubExpr = Record.readSubStmt();
1171   E->BoxingMethod = ReadDeclAs<ObjCMethodDecl>();
1172   E->Range = ReadSourceRange();
1173 }
1174 
1175 void ASTStmtReader::VisitObjCArrayLiteral(ObjCArrayLiteral *E) {
1176   VisitExpr(E);
1177   unsigned NumElements = Record.readInt();
1178   assert(NumElements == E->getNumElements() && "Wrong number of elements");
1179   Expr **Elements = E->getElements();
1180   for (unsigned I = 0, N = NumElements; I != N; ++I)
1181     Elements[I] = Record.readSubExpr();
1182   E->ArrayWithObjectsMethod = ReadDeclAs<ObjCMethodDecl>();
1183   E->Range = ReadSourceRange();
1184 }
1185 
1186 void ASTStmtReader::VisitObjCDictionaryLiteral(ObjCDictionaryLiteral *E) {
1187   VisitExpr(E);
1188   unsigned NumElements = Record.readInt();
1189   assert(NumElements == E->getNumElements() && "Wrong number of elements");
1190   bool HasPackExpansions = Record.readInt();
1191   assert(HasPackExpansions == E->HasPackExpansions &&"Pack expansion mismatch");
1192   auto *KeyValues =
1193       E->getTrailingObjects<ObjCDictionaryLiteral::KeyValuePair>();
1194   auto *Expansions =
1195       E->getTrailingObjects<ObjCDictionaryLiteral::ExpansionData>();
1196   for (unsigned I = 0; I != NumElements; ++I) {
1197     KeyValues[I].Key = Record.readSubExpr();
1198     KeyValues[I].Value = Record.readSubExpr();
1199     if (HasPackExpansions) {
1200       Expansions[I].EllipsisLoc = ReadSourceLocation();
1201       Expansions[I].NumExpansionsPlusOne = Record.readInt();
1202     }
1203   }
1204   E->DictWithObjectsMethod = ReadDeclAs<ObjCMethodDecl>();
1205   E->Range = ReadSourceRange();
1206 }
1207 
1208 void ASTStmtReader::VisitObjCEncodeExpr(ObjCEncodeExpr *E) {
1209   VisitExpr(E);
1210   E->setEncodedTypeSourceInfo(GetTypeSourceInfo());
1211   E->setAtLoc(ReadSourceLocation());
1212   E->setRParenLoc(ReadSourceLocation());
1213 }
1214 
1215 void ASTStmtReader::VisitObjCSelectorExpr(ObjCSelectorExpr *E) {
1216   VisitExpr(E);
1217   E->setSelector(Record.readSelector());
1218   E->setAtLoc(ReadSourceLocation());
1219   E->setRParenLoc(ReadSourceLocation());
1220 }
1221 
1222 void ASTStmtReader::VisitObjCProtocolExpr(ObjCProtocolExpr *E) {
1223   VisitExpr(E);
1224   E->setProtocol(ReadDeclAs<ObjCProtocolDecl>());
1225   E->setAtLoc(ReadSourceLocation());
1226   E->ProtoLoc = ReadSourceLocation();
1227   E->setRParenLoc(ReadSourceLocation());
1228 }
1229 
1230 void ASTStmtReader::VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
1231   VisitExpr(E);
1232   E->setDecl(ReadDeclAs<ObjCIvarDecl>());
1233   E->setLocation(ReadSourceLocation());
1234   E->setOpLoc(ReadSourceLocation());
1235   E->setBase(Record.readSubExpr());
1236   E->setIsArrow(Record.readInt());
1237   E->setIsFreeIvar(Record.readInt());
1238 }
1239 
1240 void ASTStmtReader::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E) {
1241   VisitExpr(E);
1242   unsigned MethodRefFlags = Record.readInt();
1243   bool Implicit = Record.readInt() != 0;
1244   if (Implicit) {
1245     auto *Getter = ReadDeclAs<ObjCMethodDecl>();
1246     auto *Setter = ReadDeclAs<ObjCMethodDecl>();
1247     E->setImplicitProperty(Getter, Setter, MethodRefFlags);
1248   } else {
1249     E->setExplicitProperty(ReadDeclAs<ObjCPropertyDecl>(), MethodRefFlags);
1250   }
1251   E->setLocation(ReadSourceLocation());
1252   E->setReceiverLocation(ReadSourceLocation());
1253   switch (Record.readInt()) {
1254   case 0:
1255     E->setBase(Record.readSubExpr());
1256     break;
1257   case 1:
1258     E->setSuperReceiver(Record.readType());
1259     break;
1260   case 2:
1261     E->setClassReceiver(ReadDeclAs<ObjCInterfaceDecl>());
1262     break;
1263   }
1264 }
1265 
1266 void ASTStmtReader::VisitObjCSubscriptRefExpr(ObjCSubscriptRefExpr *E) {
1267   VisitExpr(E);
1268   E->setRBracket(ReadSourceLocation());
1269   E->setBaseExpr(Record.readSubExpr());
1270   E->setKeyExpr(Record.readSubExpr());
1271   E->GetAtIndexMethodDecl = ReadDeclAs<ObjCMethodDecl>();
1272   E->SetAtIndexMethodDecl = ReadDeclAs<ObjCMethodDecl>();
1273 }
1274 
1275 void ASTStmtReader::VisitObjCMessageExpr(ObjCMessageExpr *E) {
1276   VisitExpr(E);
1277   assert(Record.peekInt() == E->getNumArgs());
1278   Record.skipInts(1);
1279   unsigned NumStoredSelLocs = Record.readInt();
1280   E->SelLocsKind = Record.readInt();
1281   E->setDelegateInitCall(Record.readInt());
1282   E->IsImplicit = Record.readInt();
1283   auto Kind = static_cast<ObjCMessageExpr::ReceiverKind>(Record.readInt());
1284   switch (Kind) {
1285   case ObjCMessageExpr::Instance:
1286     E->setInstanceReceiver(Record.readSubExpr());
1287     break;
1288 
1289   case ObjCMessageExpr::Class:
1290     E->setClassReceiver(GetTypeSourceInfo());
1291     break;
1292 
1293   case ObjCMessageExpr::SuperClass:
1294   case ObjCMessageExpr::SuperInstance: {
1295     QualType T = Record.readType();
1296     SourceLocation SuperLoc = ReadSourceLocation();
1297     E->setSuper(SuperLoc, T, Kind == ObjCMessageExpr::SuperInstance);
1298     break;
1299   }
1300   }
1301 
1302   assert(Kind == E->getReceiverKind());
1303 
1304   if (Record.readInt())
1305     E->setMethodDecl(ReadDeclAs<ObjCMethodDecl>());
1306   else
1307     E->setSelector(Record.readSelector());
1308 
1309   E->LBracLoc = ReadSourceLocation();
1310   E->RBracLoc = ReadSourceLocation();
1311 
1312   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1313     E->setArg(I, Record.readSubExpr());
1314 
1315   SourceLocation *Locs = E->getStoredSelLocs();
1316   for (unsigned I = 0; I != NumStoredSelLocs; ++I)
1317     Locs[I] = ReadSourceLocation();
1318 }
1319 
1320 void ASTStmtReader::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
1321   VisitStmt(S);
1322   S->setElement(Record.readSubStmt());
1323   S->setCollection(Record.readSubExpr());
1324   S->setBody(Record.readSubStmt());
1325   S->setForLoc(ReadSourceLocation());
1326   S->setRParenLoc(ReadSourceLocation());
1327 }
1328 
1329 void ASTStmtReader::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
1330   VisitStmt(S);
1331   S->setCatchBody(Record.readSubStmt());
1332   S->setCatchParamDecl(ReadDeclAs<VarDecl>());
1333   S->setAtCatchLoc(ReadSourceLocation());
1334   S->setRParenLoc(ReadSourceLocation());
1335 }
1336 
1337 void ASTStmtReader::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
1338   VisitStmt(S);
1339   S->setFinallyBody(Record.readSubStmt());
1340   S->setAtFinallyLoc(ReadSourceLocation());
1341 }
1342 
1343 void ASTStmtReader::VisitObjCAutoreleasePoolStmt(ObjCAutoreleasePoolStmt *S) {
1344   VisitStmt(S); // FIXME: no test coverage.
1345   S->setSubStmt(Record.readSubStmt());
1346   S->setAtLoc(ReadSourceLocation());
1347 }
1348 
1349 void ASTStmtReader::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
1350   VisitStmt(S);
1351   assert(Record.peekInt() == S->getNumCatchStmts());
1352   Record.skipInts(1);
1353   bool HasFinally = Record.readInt();
1354   S->setTryBody(Record.readSubStmt());
1355   for (unsigned I = 0, N = S->getNumCatchStmts(); I != N; ++I)
1356     S->setCatchStmt(I, cast_or_null<ObjCAtCatchStmt>(Record.readSubStmt()));
1357 
1358   if (HasFinally)
1359     S->setFinallyStmt(Record.readSubStmt());
1360   S->setAtTryLoc(ReadSourceLocation());
1361 }
1362 
1363 void ASTStmtReader::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
1364   VisitStmt(S); // FIXME: no test coverage.
1365   S->setSynchExpr(Record.readSubStmt());
1366   S->setSynchBody(Record.readSubStmt());
1367   S->setAtSynchronizedLoc(ReadSourceLocation());
1368 }
1369 
1370 void ASTStmtReader::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
1371   VisitStmt(S); // FIXME: no test coverage.
1372   S->setThrowExpr(Record.readSubStmt());
1373   S->setThrowLoc(ReadSourceLocation());
1374 }
1375 
1376 void ASTStmtReader::VisitObjCBoolLiteralExpr(ObjCBoolLiteralExpr *E) {
1377   VisitExpr(E);
1378   E->setValue(Record.readInt());
1379   E->setLocation(ReadSourceLocation());
1380 }
1381 
1382 void ASTStmtReader::VisitObjCAvailabilityCheckExpr(ObjCAvailabilityCheckExpr *E) {
1383   VisitExpr(E);
1384   SourceRange R = Record.readSourceRange();
1385   E->AtLoc = R.getBegin();
1386   E->RParen = R.getEnd();
1387   E->VersionToCheck = Record.readVersionTuple();
1388 }
1389 
1390 //===----------------------------------------------------------------------===//
1391 // C++ Expressions and Statements
1392 //===----------------------------------------------------------------------===//
1393 
1394 void ASTStmtReader::VisitCXXCatchStmt(CXXCatchStmt *S) {
1395   VisitStmt(S);
1396   S->CatchLoc = ReadSourceLocation();
1397   S->ExceptionDecl = ReadDeclAs<VarDecl>();
1398   S->HandlerBlock = Record.readSubStmt();
1399 }
1400 
1401 void ASTStmtReader::VisitCXXTryStmt(CXXTryStmt *S) {
1402   VisitStmt(S);
1403   assert(Record.peekInt() == S->getNumHandlers() && "NumStmtFields is wrong ?");
1404   Record.skipInts(1);
1405   S->TryLoc = ReadSourceLocation();
1406   S->getStmts()[0] = Record.readSubStmt();
1407   for (unsigned i = 0, e = S->getNumHandlers(); i != e; ++i)
1408     S->getStmts()[i + 1] = Record.readSubStmt();
1409 }
1410 
1411 void ASTStmtReader::VisitCXXForRangeStmt(CXXForRangeStmt *S) {
1412   VisitStmt(S);
1413   S->ForLoc = ReadSourceLocation();
1414   S->CoawaitLoc = ReadSourceLocation();
1415   S->ColonLoc = ReadSourceLocation();
1416   S->RParenLoc = ReadSourceLocation();
1417   S->setInit(Record.readSubStmt());
1418   S->setRangeStmt(Record.readSubStmt());
1419   S->setBeginStmt(Record.readSubStmt());
1420   S->setEndStmt(Record.readSubStmt());
1421   S->setCond(Record.readSubExpr());
1422   S->setInc(Record.readSubExpr());
1423   S->setLoopVarStmt(Record.readSubStmt());
1424   S->setBody(Record.readSubStmt());
1425 }
1426 
1427 void ASTStmtReader::VisitMSDependentExistsStmt(MSDependentExistsStmt *S) {
1428   VisitStmt(S);
1429   S->KeywordLoc = ReadSourceLocation();
1430   S->IsIfExists = Record.readInt();
1431   S->QualifierLoc = Record.readNestedNameSpecifierLoc();
1432   ReadDeclarationNameInfo(S->NameInfo);
1433   S->SubStmt = Record.readSubStmt();
1434 }
1435 
1436 void ASTStmtReader::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
1437   VisitCallExpr(E);
1438   E->CXXOperatorCallExprBits.OperatorKind = Record.readInt();
1439   E->CXXOperatorCallExprBits.FPFeatures = Record.readInt();
1440   E->Range = Record.readSourceRange();
1441 }
1442 
1443 void ASTStmtReader::VisitCXXConstructExpr(CXXConstructExpr *E) {
1444   VisitExpr(E);
1445 
1446   unsigned NumArgs = Record.readInt();
1447   assert((NumArgs == E->getNumArgs()) && "Wrong NumArgs!");
1448 
1449   E->CXXConstructExprBits.Elidable = Record.readInt();
1450   E->CXXConstructExprBits.HadMultipleCandidates = Record.readInt();
1451   E->CXXConstructExprBits.ListInitialization = Record.readInt();
1452   E->CXXConstructExprBits.StdInitListInitialization = Record.readInt();
1453   E->CXXConstructExprBits.ZeroInitialization = Record.readInt();
1454   E->CXXConstructExprBits.ConstructionKind = Record.readInt();
1455   E->CXXConstructExprBits.Loc = ReadSourceLocation();
1456   E->Constructor = ReadDeclAs<CXXConstructorDecl>();
1457   E->ParenOrBraceRange = ReadSourceRange();
1458 
1459   for (unsigned I = 0; I != NumArgs; ++I)
1460     E->setArg(I, Record.readSubExpr());
1461 }
1462 
1463 void ASTStmtReader::VisitCXXInheritedCtorInitExpr(CXXInheritedCtorInitExpr *E) {
1464   VisitExpr(E);
1465   E->Constructor = ReadDeclAs<CXXConstructorDecl>();
1466   E->Loc = ReadSourceLocation();
1467   E->ConstructsVirtualBase = Record.readInt();
1468   E->InheritedFromVirtualBase = Record.readInt();
1469 }
1470 
1471 void ASTStmtReader::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E) {
1472   VisitCXXConstructExpr(E);
1473   E->TSI = GetTypeSourceInfo();
1474 }
1475 
1476 void ASTStmtReader::VisitLambdaExpr(LambdaExpr *E) {
1477   VisitExpr(E);
1478   unsigned NumCaptures = Record.readInt();
1479   assert(NumCaptures == E->NumCaptures);(void)NumCaptures;
1480   E->IntroducerRange = ReadSourceRange();
1481   E->CaptureDefault = static_cast<LambdaCaptureDefault>(Record.readInt());
1482   E->CaptureDefaultLoc = ReadSourceLocation();
1483   E->ExplicitParams = Record.readInt();
1484   E->ExplicitResultType = Record.readInt();
1485   E->ClosingBrace = ReadSourceLocation();
1486 
1487   // Read capture initializers.
1488   for (LambdaExpr::capture_init_iterator C = E->capture_init_begin(),
1489                                       CEnd = E->capture_init_end();
1490        C != CEnd; ++C)
1491     *C = Record.readSubExpr();
1492 }
1493 
1494 void
1495 ASTStmtReader::VisitCXXStdInitializerListExpr(CXXStdInitializerListExpr *E) {
1496   VisitExpr(E);
1497   E->SubExpr = Record.readSubExpr();
1498 }
1499 
1500 void ASTStmtReader::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
1501   VisitExplicitCastExpr(E);
1502   SourceRange R = ReadSourceRange();
1503   E->Loc = R.getBegin();
1504   E->RParenLoc = R.getEnd();
1505   R = ReadSourceRange();
1506   E->AngleBrackets = R;
1507 }
1508 
1509 void ASTStmtReader::VisitCXXStaticCastExpr(CXXStaticCastExpr *E) {
1510   return VisitCXXNamedCastExpr(E);
1511 }
1512 
1513 void ASTStmtReader::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E) {
1514   return VisitCXXNamedCastExpr(E);
1515 }
1516 
1517 void ASTStmtReader::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E) {
1518   return VisitCXXNamedCastExpr(E);
1519 }
1520 
1521 void ASTStmtReader::VisitCXXConstCastExpr(CXXConstCastExpr *E) {
1522   return VisitCXXNamedCastExpr(E);
1523 }
1524 
1525 void ASTStmtReader::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E) {
1526   VisitExplicitCastExpr(E);
1527   E->setLParenLoc(ReadSourceLocation());
1528   E->setRParenLoc(ReadSourceLocation());
1529 }
1530 
1531 void ASTStmtReader::VisitBuiltinBitCastExpr(BuiltinBitCastExpr *E) {
1532   VisitExplicitCastExpr(E);
1533   E->KWLoc = ReadSourceLocation();
1534   E->RParenLoc = ReadSourceLocation();
1535 }
1536 
1537 void ASTStmtReader::VisitUserDefinedLiteral(UserDefinedLiteral *E) {
1538   VisitCallExpr(E);
1539   E->UDSuffixLoc = ReadSourceLocation();
1540 }
1541 
1542 void ASTStmtReader::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
1543   VisitExpr(E);
1544   E->setValue(Record.readInt());
1545   E->setLocation(ReadSourceLocation());
1546 }
1547 
1548 void ASTStmtReader::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E) {
1549   VisitExpr(E);
1550   E->setLocation(ReadSourceLocation());
1551 }
1552 
1553 void ASTStmtReader::VisitCXXTypeidExpr(CXXTypeidExpr *E) {
1554   VisitExpr(E);
1555   E->setSourceRange(ReadSourceRange());
1556   if (E->isTypeOperand()) { // typeid(int)
1557     E->setTypeOperandSourceInfo(
1558         GetTypeSourceInfo());
1559     return;
1560   }
1561 
1562   // typeid(42+2)
1563   E->setExprOperand(Record.readSubExpr());
1564 }
1565 
1566 void ASTStmtReader::VisitCXXThisExpr(CXXThisExpr *E) {
1567   VisitExpr(E);
1568   E->setLocation(ReadSourceLocation());
1569   E->setImplicit(Record.readInt());
1570 }
1571 
1572 void ASTStmtReader::VisitCXXThrowExpr(CXXThrowExpr *E) {
1573   VisitExpr(E);
1574   E->CXXThrowExprBits.ThrowLoc = ReadSourceLocation();
1575   E->Operand = Record.readSubExpr();
1576   E->CXXThrowExprBits.IsThrownVariableInScope = Record.readInt();
1577 }
1578 
1579 void ASTStmtReader::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
1580   VisitExpr(E);
1581   E->Param = ReadDeclAs<ParmVarDecl>();
1582   E->UsedContext = ReadDeclAs<DeclContext>();
1583   E->CXXDefaultArgExprBits.Loc = ReadSourceLocation();
1584 }
1585 
1586 void ASTStmtReader::VisitCXXDefaultInitExpr(CXXDefaultInitExpr *E) {
1587   VisitExpr(E);
1588   E->Field = ReadDeclAs<FieldDecl>();
1589   E->UsedContext = ReadDeclAs<DeclContext>();
1590   E->CXXDefaultInitExprBits.Loc = ReadSourceLocation();
1591 }
1592 
1593 void ASTStmtReader::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
1594   VisitExpr(E);
1595   E->setTemporary(Record.readCXXTemporary());
1596   E->setSubExpr(Record.readSubExpr());
1597 }
1598 
1599 void ASTStmtReader::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E) {
1600   VisitExpr(E);
1601   E->TypeInfo = GetTypeSourceInfo();
1602   E->CXXScalarValueInitExprBits.RParenLoc = ReadSourceLocation();
1603 }
1604 
1605 void ASTStmtReader::VisitCXXNewExpr(CXXNewExpr *E) {
1606   VisitExpr(E);
1607 
1608   bool IsArray = Record.readInt();
1609   bool HasInit = Record.readInt();
1610   unsigned NumPlacementArgs = Record.readInt();
1611   bool IsParenTypeId = Record.readInt();
1612 
1613   E->CXXNewExprBits.IsGlobalNew = Record.readInt();
1614   E->CXXNewExprBits.ShouldPassAlignment = Record.readInt();
1615   E->CXXNewExprBits.UsualArrayDeleteWantsSize = Record.readInt();
1616   E->CXXNewExprBits.StoredInitializationStyle = Record.readInt();
1617 
1618   assert((IsArray == E->isArray()) && "Wrong IsArray!");
1619   assert((HasInit == E->hasInitializer()) && "Wrong HasInit!");
1620   assert((NumPlacementArgs == E->getNumPlacementArgs()) &&
1621          "Wrong NumPlacementArgs!");
1622   assert((IsParenTypeId == E->isParenTypeId()) && "Wrong IsParenTypeId!");
1623   (void)IsArray;
1624   (void)HasInit;
1625   (void)NumPlacementArgs;
1626 
1627   E->setOperatorNew(ReadDeclAs<FunctionDecl>());
1628   E->setOperatorDelete(ReadDeclAs<FunctionDecl>());
1629   E->AllocatedTypeInfo = GetTypeSourceInfo();
1630   if (IsParenTypeId)
1631     E->getTrailingObjects<SourceRange>()[0] = ReadSourceRange();
1632   E->Range = ReadSourceRange();
1633   E->DirectInitRange = ReadSourceRange();
1634 
1635   // Install all the subexpressions.
1636   for (CXXNewExpr::raw_arg_iterator I = E->raw_arg_begin(),
1637                                     N = E->raw_arg_end();
1638        I != N; ++I)
1639     *I = Record.readSubStmt();
1640 }
1641 
1642 void ASTStmtReader::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
1643   VisitExpr(E);
1644   E->CXXDeleteExprBits.GlobalDelete = Record.readInt();
1645   E->CXXDeleteExprBits.ArrayForm = Record.readInt();
1646   E->CXXDeleteExprBits.ArrayFormAsWritten = Record.readInt();
1647   E->CXXDeleteExprBits.UsualArrayDeleteWantsSize = Record.readInt();
1648   E->OperatorDelete = ReadDeclAs<FunctionDecl>();
1649   E->Argument = Record.readSubExpr();
1650   E->CXXDeleteExprBits.Loc = ReadSourceLocation();
1651 }
1652 
1653 void ASTStmtReader::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) {
1654   VisitExpr(E);
1655 
1656   E->Base = Record.readSubExpr();
1657   E->IsArrow = Record.readInt();
1658   E->OperatorLoc = ReadSourceLocation();
1659   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1660   E->ScopeType = GetTypeSourceInfo();
1661   E->ColonColonLoc = ReadSourceLocation();
1662   E->TildeLoc = ReadSourceLocation();
1663 
1664   IdentifierInfo *II = Record.getIdentifierInfo();
1665   if (II)
1666     E->setDestroyedType(II, ReadSourceLocation());
1667   else
1668     E->setDestroyedType(GetTypeSourceInfo());
1669 }
1670 
1671 void ASTStmtReader::VisitExprWithCleanups(ExprWithCleanups *E) {
1672   VisitExpr(E);
1673 
1674   unsigned NumObjects = Record.readInt();
1675   assert(NumObjects == E->getNumObjects());
1676   for (unsigned i = 0; i != NumObjects; ++i)
1677     E->getTrailingObjects<BlockDecl *>()[i] =
1678         ReadDeclAs<BlockDecl>();
1679 
1680   E->ExprWithCleanupsBits.CleanupsHaveSideEffects = Record.readInt();
1681   E->SubExpr = Record.readSubExpr();
1682 }
1683 
1684 void ASTStmtReader::VisitCXXDependentScopeMemberExpr(
1685     CXXDependentScopeMemberExpr *E) {
1686   VisitExpr(E);
1687 
1688   bool HasTemplateKWAndArgsInfo = Record.readInt();
1689   unsigned NumTemplateArgs = Record.readInt();
1690   bool HasFirstQualifierFoundInScope = Record.readInt();
1691 
1692   assert((HasTemplateKWAndArgsInfo == E->hasTemplateKWAndArgsInfo()) &&
1693          "Wrong HasTemplateKWAndArgsInfo!");
1694   assert(
1695       (HasFirstQualifierFoundInScope == E->hasFirstQualifierFoundInScope()) &&
1696       "Wrong HasFirstQualifierFoundInScope!");
1697 
1698   if (HasTemplateKWAndArgsInfo)
1699     ReadTemplateKWAndArgsInfo(
1700         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
1701         E->getTrailingObjects<TemplateArgumentLoc>(), NumTemplateArgs);
1702 
1703   assert((NumTemplateArgs == E->getNumTemplateArgs()) &&
1704          "Wrong NumTemplateArgs!");
1705 
1706   E->CXXDependentScopeMemberExprBits.IsArrow = Record.readInt();
1707   E->CXXDependentScopeMemberExprBits.OperatorLoc = ReadSourceLocation();
1708   E->BaseType = Record.readType();
1709   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1710   E->Base = Record.readSubExpr();
1711 
1712   if (HasFirstQualifierFoundInScope)
1713     *E->getTrailingObjects<NamedDecl *>() = ReadDeclAs<NamedDecl>();
1714 
1715   ReadDeclarationNameInfo(E->MemberNameInfo);
1716 }
1717 
1718 void
1719 ASTStmtReader::VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E) {
1720   VisitExpr(E);
1721 
1722   if (Record.readInt()) // HasTemplateKWAndArgsInfo
1723     ReadTemplateKWAndArgsInfo(
1724         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
1725         E->getTrailingObjects<TemplateArgumentLoc>(),
1726         /*NumTemplateArgs=*/Record.readInt());
1727 
1728   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1729   ReadDeclarationNameInfo(E->NameInfo);
1730 }
1731 
1732 void
1733 ASTStmtReader::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E) {
1734   VisitExpr(E);
1735   assert(Record.peekInt() == E->arg_size() &&
1736          "Read wrong record during creation ?");
1737   Record.skipInts(1);
1738   for (unsigned I = 0, N = E->arg_size(); I != N; ++I)
1739     E->setArg(I, Record.readSubExpr());
1740   E->TSI = GetTypeSourceInfo();
1741   E->setLParenLoc(ReadSourceLocation());
1742   E->setRParenLoc(ReadSourceLocation());
1743 }
1744 
1745 void ASTStmtReader::VisitOverloadExpr(OverloadExpr *E) {
1746   VisitExpr(E);
1747 
1748   unsigned NumResults = Record.readInt();
1749   bool HasTemplateKWAndArgsInfo = Record.readInt();
1750   assert((E->getNumDecls() == NumResults) && "Wrong NumResults!");
1751   assert((E->hasTemplateKWAndArgsInfo() == HasTemplateKWAndArgsInfo) &&
1752          "Wrong HasTemplateKWAndArgsInfo!");
1753 
1754   if (HasTemplateKWAndArgsInfo) {
1755     unsigned NumTemplateArgs = Record.readInt();
1756     ReadTemplateKWAndArgsInfo(*E->getTrailingASTTemplateKWAndArgsInfo(),
1757                               E->getTrailingTemplateArgumentLoc(),
1758                               NumTemplateArgs);
1759     assert((E->getNumTemplateArgs() == NumTemplateArgs) &&
1760            "Wrong NumTemplateArgs!");
1761   }
1762 
1763   UnresolvedSet<8> Decls;
1764   for (unsigned I = 0; I != NumResults; ++I) {
1765     auto *D = ReadDeclAs<NamedDecl>();
1766     auto AS = (AccessSpecifier)Record.readInt();
1767     Decls.addDecl(D, AS);
1768   }
1769 
1770   DeclAccessPair *Results = E->getTrailingResults();
1771   UnresolvedSetIterator Iter = Decls.begin();
1772   for (unsigned I = 0; I != NumResults; ++I) {
1773     Results[I] = (Iter + I).getPair();
1774   }
1775 
1776   ReadDeclarationNameInfo(E->NameInfo);
1777   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1778 }
1779 
1780 void ASTStmtReader::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E) {
1781   VisitOverloadExpr(E);
1782   E->UnresolvedMemberExprBits.IsArrow = Record.readInt();
1783   E->UnresolvedMemberExprBits.HasUnresolvedUsing = Record.readInt();
1784   E->Base = Record.readSubExpr();
1785   E->BaseType = Record.readType();
1786   E->OperatorLoc = ReadSourceLocation();
1787 }
1788 
1789 void ASTStmtReader::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E) {
1790   VisitOverloadExpr(E);
1791   E->UnresolvedLookupExprBits.RequiresADL = Record.readInt();
1792   E->UnresolvedLookupExprBits.Overloaded = Record.readInt();
1793   E->NamingClass = ReadDeclAs<CXXRecordDecl>();
1794 }
1795 
1796 void ASTStmtReader::VisitTypeTraitExpr(TypeTraitExpr *E) {
1797   VisitExpr(E);
1798   E->TypeTraitExprBits.NumArgs = Record.readInt();
1799   E->TypeTraitExprBits.Kind = Record.readInt();
1800   E->TypeTraitExprBits.Value = Record.readInt();
1801   SourceRange Range = ReadSourceRange();
1802   E->Loc = Range.getBegin();
1803   E->RParenLoc = Range.getEnd();
1804 
1805   auto **Args = E->getTrailingObjects<TypeSourceInfo *>();
1806   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1807     Args[I] = GetTypeSourceInfo();
1808 }
1809 
1810 void ASTStmtReader::VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E) {
1811   VisitExpr(E);
1812   E->ATT = (ArrayTypeTrait)Record.readInt();
1813   E->Value = (unsigned int)Record.readInt();
1814   SourceRange Range = ReadSourceRange();
1815   E->Loc = Range.getBegin();
1816   E->RParen = Range.getEnd();
1817   E->QueriedType = GetTypeSourceInfo();
1818   E->Dimension = Record.readSubExpr();
1819 }
1820 
1821 void ASTStmtReader::VisitExpressionTraitExpr(ExpressionTraitExpr *E) {
1822   VisitExpr(E);
1823   E->ET = (ExpressionTrait)Record.readInt();
1824   E->Value = (bool)Record.readInt();
1825   SourceRange Range = ReadSourceRange();
1826   E->QueriedExpression = Record.readSubExpr();
1827   E->Loc = Range.getBegin();
1828   E->RParen = Range.getEnd();
1829 }
1830 
1831 void ASTStmtReader::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) {
1832   VisitExpr(E);
1833   E->CXXNoexceptExprBits.Value = Record.readInt();
1834   E->Range = ReadSourceRange();
1835   E->Operand = Record.readSubExpr();
1836 }
1837 
1838 void ASTStmtReader::VisitPackExpansionExpr(PackExpansionExpr *E) {
1839   VisitExpr(E);
1840   E->EllipsisLoc = ReadSourceLocation();
1841   E->NumExpansions = Record.readInt();
1842   E->Pattern = Record.readSubExpr();
1843 }
1844 
1845 void ASTStmtReader::VisitSizeOfPackExpr(SizeOfPackExpr *E) {
1846   VisitExpr(E);
1847   unsigned NumPartialArgs = Record.readInt();
1848   E->OperatorLoc = ReadSourceLocation();
1849   E->PackLoc = ReadSourceLocation();
1850   E->RParenLoc = ReadSourceLocation();
1851   E->Pack = Record.readDeclAs<NamedDecl>();
1852   if (E->isPartiallySubstituted()) {
1853     assert(E->Length == NumPartialArgs);
1854     for (auto *I = E->getTrailingObjects<TemplateArgument>(),
1855               *E = I + NumPartialArgs;
1856          I != E; ++I)
1857       new (I) TemplateArgument(Record.readTemplateArgument());
1858   } else if (!E->isValueDependent()) {
1859     E->Length = Record.readInt();
1860   }
1861 }
1862 
1863 void ASTStmtReader::VisitSubstNonTypeTemplateParmExpr(
1864                                               SubstNonTypeTemplateParmExpr *E) {
1865   VisitExpr(E);
1866   E->Param = ReadDeclAs<NonTypeTemplateParmDecl>();
1867   E->SubstNonTypeTemplateParmExprBits.NameLoc = ReadSourceLocation();
1868   E->Replacement = Record.readSubExpr();
1869 }
1870 
1871 void ASTStmtReader::VisitSubstNonTypeTemplateParmPackExpr(
1872                                           SubstNonTypeTemplateParmPackExpr *E) {
1873   VisitExpr(E);
1874   E->Param = ReadDeclAs<NonTypeTemplateParmDecl>();
1875   TemplateArgument ArgPack = Record.readTemplateArgument();
1876   if (ArgPack.getKind() != TemplateArgument::Pack)
1877     return;
1878 
1879   E->Arguments = ArgPack.pack_begin();
1880   E->NumArguments = ArgPack.pack_size();
1881   E->NameLoc = ReadSourceLocation();
1882 }
1883 
1884 void ASTStmtReader::VisitFunctionParmPackExpr(FunctionParmPackExpr *E) {
1885   VisitExpr(E);
1886   E->NumParameters = Record.readInt();
1887   E->ParamPack = ReadDeclAs<ParmVarDecl>();
1888   E->NameLoc = ReadSourceLocation();
1889   auto **Parms = E->getTrailingObjects<VarDecl *>();
1890   for (unsigned i = 0, n = E->NumParameters; i != n; ++i)
1891     Parms[i] = ReadDeclAs<VarDecl>();
1892 }
1893 
1894 void ASTStmtReader::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E) {
1895   VisitExpr(E);
1896   E->State = Record.readSubExpr();
1897   auto *VD = ReadDeclAs<ValueDecl>();
1898   unsigned ManglingNumber = Record.readInt();
1899   E->setExtendingDecl(VD, ManglingNumber);
1900 }
1901 
1902 void ASTStmtReader::VisitCXXFoldExpr(CXXFoldExpr *E) {
1903   VisitExpr(E);
1904   E->LParenLoc = ReadSourceLocation();
1905   E->EllipsisLoc = ReadSourceLocation();
1906   E->RParenLoc = ReadSourceLocation();
1907   E->NumExpansions = Record.readInt();
1908   E->SubExprs[0] = Record.readSubExpr();
1909   E->SubExprs[1] = Record.readSubExpr();
1910   E->Opcode = (BinaryOperatorKind)Record.readInt();
1911 }
1912 
1913 void ASTStmtReader::VisitOpaqueValueExpr(OpaqueValueExpr *E) {
1914   VisitExpr(E);
1915   E->SourceExpr = Record.readSubExpr();
1916   E->OpaqueValueExprBits.Loc = ReadSourceLocation();
1917   E->setIsUnique(Record.readInt());
1918 }
1919 
1920 void ASTStmtReader::VisitTypoExpr(TypoExpr *E) {
1921   llvm_unreachable("Cannot read TypoExpr nodes");
1922 }
1923 
1924 //===----------------------------------------------------------------------===//
1925 // Microsoft Expressions and Statements
1926 //===----------------------------------------------------------------------===//
1927 void ASTStmtReader::VisitMSPropertyRefExpr(MSPropertyRefExpr *E) {
1928   VisitExpr(E);
1929   E->IsArrow = (Record.readInt() != 0);
1930   E->BaseExpr = Record.readSubExpr();
1931   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1932   E->MemberLoc = ReadSourceLocation();
1933   E->TheDecl = ReadDeclAs<MSPropertyDecl>();
1934 }
1935 
1936 void ASTStmtReader::VisitMSPropertySubscriptExpr(MSPropertySubscriptExpr *E) {
1937   VisitExpr(E);
1938   E->setBase(Record.readSubExpr());
1939   E->setIdx(Record.readSubExpr());
1940   E->setRBracketLoc(ReadSourceLocation());
1941 }
1942 
1943 void ASTStmtReader::VisitCXXUuidofExpr(CXXUuidofExpr *E) {
1944   VisitExpr(E);
1945   E->setSourceRange(ReadSourceRange());
1946   std::string UuidStr = ReadString();
1947   E->setUuidStr(StringRef(UuidStr).copy(Record.getContext()));
1948   if (E->isTypeOperand()) { // __uuidof(ComType)
1949     E->setTypeOperandSourceInfo(
1950         GetTypeSourceInfo());
1951     return;
1952   }
1953 
1954   // __uuidof(expr)
1955   E->setExprOperand(Record.readSubExpr());
1956 }
1957 
1958 void ASTStmtReader::VisitSEHLeaveStmt(SEHLeaveStmt *S) {
1959   VisitStmt(S);
1960   S->setLeaveLoc(ReadSourceLocation());
1961 }
1962 
1963 void ASTStmtReader::VisitSEHExceptStmt(SEHExceptStmt *S) {
1964   VisitStmt(S);
1965   S->Loc = ReadSourceLocation();
1966   S->Children[SEHExceptStmt::FILTER_EXPR] = Record.readSubStmt();
1967   S->Children[SEHExceptStmt::BLOCK] = Record.readSubStmt();
1968 }
1969 
1970 void ASTStmtReader::VisitSEHFinallyStmt(SEHFinallyStmt *S) {
1971   VisitStmt(S);
1972   S->Loc = ReadSourceLocation();
1973   S->Block = Record.readSubStmt();
1974 }
1975 
1976 void ASTStmtReader::VisitSEHTryStmt(SEHTryStmt *S) {
1977   VisitStmt(S);
1978   S->IsCXXTry = Record.readInt();
1979   S->TryLoc = ReadSourceLocation();
1980   S->Children[SEHTryStmt::TRY] = Record.readSubStmt();
1981   S->Children[SEHTryStmt::HANDLER] = Record.readSubStmt();
1982 }
1983 
1984 //===----------------------------------------------------------------------===//
1985 // CUDA Expressions and Statements
1986 //===----------------------------------------------------------------------===//
1987 
1988 void ASTStmtReader::VisitCUDAKernelCallExpr(CUDAKernelCallExpr *E) {
1989   VisitCallExpr(E);
1990   E->setPreArg(CUDAKernelCallExpr::CONFIG, Record.readSubExpr());
1991 }
1992 
1993 //===----------------------------------------------------------------------===//
1994 // OpenCL Expressions and Statements.
1995 //===----------------------------------------------------------------------===//
1996 void ASTStmtReader::VisitAsTypeExpr(AsTypeExpr *E) {
1997   VisitExpr(E);
1998   E->BuiltinLoc = ReadSourceLocation();
1999   E->RParenLoc = ReadSourceLocation();
2000   E->SrcExpr = Record.readSubExpr();
2001 }
2002 
2003 //===----------------------------------------------------------------------===//
2004 // OpenMP Directives.
2005 //===----------------------------------------------------------------------===//
2006 
2007 void ASTStmtReader::VisitOMPExecutableDirective(OMPExecutableDirective *E) {
2008   E->setLocStart(ReadSourceLocation());
2009   E->setLocEnd(ReadSourceLocation());
2010   OMPClauseReader ClauseReader(Record);
2011   SmallVector<OMPClause *, 5> Clauses;
2012   for (unsigned i = 0; i < E->getNumClauses(); ++i)
2013     Clauses.push_back(ClauseReader.readClause());
2014   E->setClauses(Clauses);
2015   if (E->hasAssociatedStmt())
2016     E->setAssociatedStmt(Record.readSubStmt());
2017 }
2018 
2019 void ASTStmtReader::VisitOMPLoopDirective(OMPLoopDirective *D) {
2020   VisitStmt(D);
2021   // Two fields (NumClauses and CollapsedNum) were read in ReadStmtFromStream.
2022   Record.skipInts(2);
2023   VisitOMPExecutableDirective(D);
2024   D->setIterationVariable(Record.readSubExpr());
2025   D->setLastIteration(Record.readSubExpr());
2026   D->setCalcLastIteration(Record.readSubExpr());
2027   D->setPreCond(Record.readSubExpr());
2028   D->setCond(Record.readSubExpr());
2029   D->setInit(Record.readSubExpr());
2030   D->setInc(Record.readSubExpr());
2031   D->setPreInits(Record.readSubStmt());
2032   if (isOpenMPWorksharingDirective(D->getDirectiveKind()) ||
2033       isOpenMPTaskLoopDirective(D->getDirectiveKind()) ||
2034       isOpenMPDistributeDirective(D->getDirectiveKind())) {
2035     D->setIsLastIterVariable(Record.readSubExpr());
2036     D->setLowerBoundVariable(Record.readSubExpr());
2037     D->setUpperBoundVariable(Record.readSubExpr());
2038     D->setStrideVariable(Record.readSubExpr());
2039     D->setEnsureUpperBound(Record.readSubExpr());
2040     D->setNextLowerBound(Record.readSubExpr());
2041     D->setNextUpperBound(Record.readSubExpr());
2042     D->setNumIterations(Record.readSubExpr());
2043   }
2044   if (isOpenMPLoopBoundSharingDirective(D->getDirectiveKind())) {
2045     D->setPrevLowerBoundVariable(Record.readSubExpr());
2046     D->setPrevUpperBoundVariable(Record.readSubExpr());
2047     D->setDistInc(Record.readSubExpr());
2048     D->setPrevEnsureUpperBound(Record.readSubExpr());
2049     D->setCombinedLowerBoundVariable(Record.readSubExpr());
2050     D->setCombinedUpperBoundVariable(Record.readSubExpr());
2051     D->setCombinedEnsureUpperBound(Record.readSubExpr());
2052     D->setCombinedInit(Record.readSubExpr());
2053     D->setCombinedCond(Record.readSubExpr());
2054     D->setCombinedNextLowerBound(Record.readSubExpr());
2055     D->setCombinedNextUpperBound(Record.readSubExpr());
2056     D->setCombinedDistCond(Record.readSubExpr());
2057     D->setCombinedParForInDistCond(Record.readSubExpr());
2058   }
2059   SmallVector<Expr *, 4> Sub;
2060   unsigned CollapsedNum = D->getCollapsedNumber();
2061   Sub.reserve(CollapsedNum);
2062   for (unsigned i = 0; i < CollapsedNum; ++i)
2063     Sub.push_back(Record.readSubExpr());
2064   D->setCounters(Sub);
2065   Sub.clear();
2066   for (unsigned i = 0; i < CollapsedNum; ++i)
2067     Sub.push_back(Record.readSubExpr());
2068   D->setPrivateCounters(Sub);
2069   Sub.clear();
2070   for (unsigned i = 0; i < CollapsedNum; ++i)
2071     Sub.push_back(Record.readSubExpr());
2072   D->setInits(Sub);
2073   Sub.clear();
2074   for (unsigned i = 0; i < CollapsedNum; ++i)
2075     Sub.push_back(Record.readSubExpr());
2076   D->setUpdates(Sub);
2077   Sub.clear();
2078   for (unsigned i = 0; i < CollapsedNum; ++i)
2079     Sub.push_back(Record.readSubExpr());
2080   D->setFinals(Sub);
2081   Sub.clear();
2082   for (unsigned i = 0; i < CollapsedNum; ++i)
2083     Sub.push_back(Record.readSubExpr());
2084   D->setDependentCounters(Sub);
2085   Sub.clear();
2086   for (unsigned i = 0; i < CollapsedNum; ++i)
2087     Sub.push_back(Record.readSubExpr());
2088   D->setDependentInits(Sub);
2089   Sub.clear();
2090   for (unsigned i = 0; i < CollapsedNum; ++i)
2091     Sub.push_back(Record.readSubExpr());
2092   D->setFinalsConditions(Sub);
2093 }
2094 
2095 void ASTStmtReader::VisitOMPParallelDirective(OMPParallelDirective *D) {
2096   VisitStmt(D);
2097   // The NumClauses field was read in ReadStmtFromStream.
2098   Record.skipInts(1);
2099   VisitOMPExecutableDirective(D);
2100   D->setHasCancel(Record.readInt());
2101 }
2102 
2103 void ASTStmtReader::VisitOMPSimdDirective(OMPSimdDirective *D) {
2104   VisitOMPLoopDirective(D);
2105 }
2106 
2107 void ASTStmtReader::VisitOMPForDirective(OMPForDirective *D) {
2108   VisitOMPLoopDirective(D);
2109   D->setHasCancel(Record.readInt());
2110 }
2111 
2112 void ASTStmtReader::VisitOMPForSimdDirective(OMPForSimdDirective *D) {
2113   VisitOMPLoopDirective(D);
2114 }
2115 
2116 void ASTStmtReader::VisitOMPSectionsDirective(OMPSectionsDirective *D) {
2117   VisitStmt(D);
2118   // The NumClauses field was read in ReadStmtFromStream.
2119   Record.skipInts(1);
2120   VisitOMPExecutableDirective(D);
2121   D->setHasCancel(Record.readInt());
2122 }
2123 
2124 void ASTStmtReader::VisitOMPSectionDirective(OMPSectionDirective *D) {
2125   VisitStmt(D);
2126   VisitOMPExecutableDirective(D);
2127   D->setHasCancel(Record.readInt());
2128 }
2129 
2130 void ASTStmtReader::VisitOMPSingleDirective(OMPSingleDirective *D) {
2131   VisitStmt(D);
2132   // The NumClauses field was read in ReadStmtFromStream.
2133   Record.skipInts(1);
2134   VisitOMPExecutableDirective(D);
2135 }
2136 
2137 void ASTStmtReader::VisitOMPMasterDirective(OMPMasterDirective *D) {
2138   VisitStmt(D);
2139   VisitOMPExecutableDirective(D);
2140 }
2141 
2142 void ASTStmtReader::VisitOMPCriticalDirective(OMPCriticalDirective *D) {
2143   VisitStmt(D);
2144   // The NumClauses field was read in ReadStmtFromStream.
2145   Record.skipInts(1);
2146   VisitOMPExecutableDirective(D);
2147   ReadDeclarationNameInfo(D->DirName);
2148 }
2149 
2150 void ASTStmtReader::VisitOMPParallelForDirective(OMPParallelForDirective *D) {
2151   VisitOMPLoopDirective(D);
2152   D->setHasCancel(Record.readInt());
2153 }
2154 
2155 void ASTStmtReader::VisitOMPParallelForSimdDirective(
2156     OMPParallelForSimdDirective *D) {
2157   VisitOMPLoopDirective(D);
2158 }
2159 
2160 void ASTStmtReader::VisitOMPParallelSectionsDirective(
2161     OMPParallelSectionsDirective *D) {
2162   VisitStmt(D);
2163   // The NumClauses field was read in ReadStmtFromStream.
2164   Record.skipInts(1);
2165   VisitOMPExecutableDirective(D);
2166   D->setHasCancel(Record.readInt());
2167 }
2168 
2169 void ASTStmtReader::VisitOMPTaskDirective(OMPTaskDirective *D) {
2170   VisitStmt(D);
2171   // The NumClauses field was read in ReadStmtFromStream.
2172   Record.skipInts(1);
2173   VisitOMPExecutableDirective(D);
2174   D->setHasCancel(Record.readInt());
2175 }
2176 
2177 void ASTStmtReader::VisitOMPTaskyieldDirective(OMPTaskyieldDirective *D) {
2178   VisitStmt(D);
2179   VisitOMPExecutableDirective(D);
2180 }
2181 
2182 void ASTStmtReader::VisitOMPBarrierDirective(OMPBarrierDirective *D) {
2183   VisitStmt(D);
2184   VisitOMPExecutableDirective(D);
2185 }
2186 
2187 void ASTStmtReader::VisitOMPTaskwaitDirective(OMPTaskwaitDirective *D) {
2188   VisitStmt(D);
2189   VisitOMPExecutableDirective(D);
2190 }
2191 
2192 void ASTStmtReader::VisitOMPTaskgroupDirective(OMPTaskgroupDirective *D) {
2193   VisitStmt(D);
2194   // The NumClauses field was read in ReadStmtFromStream.
2195   Record.skipInts(1);
2196   VisitOMPExecutableDirective(D);
2197   D->setReductionRef(Record.readSubExpr());
2198 }
2199 
2200 void ASTStmtReader::VisitOMPFlushDirective(OMPFlushDirective *D) {
2201   VisitStmt(D);
2202   // The NumClauses field was read in ReadStmtFromStream.
2203   Record.skipInts(1);
2204   VisitOMPExecutableDirective(D);
2205 }
2206 
2207 void ASTStmtReader::VisitOMPOrderedDirective(OMPOrderedDirective *D) {
2208   VisitStmt(D);
2209   // The NumClauses field was read in ReadStmtFromStream.
2210   Record.skipInts(1);
2211   VisitOMPExecutableDirective(D);
2212 }
2213 
2214 void ASTStmtReader::VisitOMPAtomicDirective(OMPAtomicDirective *D) {
2215   VisitStmt(D);
2216   // The NumClauses field was read in ReadStmtFromStream.
2217   Record.skipInts(1);
2218   VisitOMPExecutableDirective(D);
2219   D->setX(Record.readSubExpr());
2220   D->setV(Record.readSubExpr());
2221   D->setExpr(Record.readSubExpr());
2222   D->setUpdateExpr(Record.readSubExpr());
2223   D->IsXLHSInRHSPart = Record.readInt() != 0;
2224   D->IsPostfixUpdate = Record.readInt() != 0;
2225 }
2226 
2227 void ASTStmtReader::VisitOMPTargetDirective(OMPTargetDirective *D) {
2228   VisitStmt(D);
2229   // The NumClauses field was read in ReadStmtFromStream.
2230   Record.skipInts(1);
2231   VisitOMPExecutableDirective(D);
2232 }
2233 
2234 void ASTStmtReader::VisitOMPTargetDataDirective(OMPTargetDataDirective *D) {
2235   VisitStmt(D);
2236   Record.skipInts(1);
2237   VisitOMPExecutableDirective(D);
2238 }
2239 
2240 void ASTStmtReader::VisitOMPTargetEnterDataDirective(
2241     OMPTargetEnterDataDirective *D) {
2242   VisitStmt(D);
2243   Record.skipInts(1);
2244   VisitOMPExecutableDirective(D);
2245 }
2246 
2247 void ASTStmtReader::VisitOMPTargetExitDataDirective(
2248     OMPTargetExitDataDirective *D) {
2249   VisitStmt(D);
2250   Record.skipInts(1);
2251   VisitOMPExecutableDirective(D);
2252 }
2253 
2254 void ASTStmtReader::VisitOMPTargetParallelDirective(
2255     OMPTargetParallelDirective *D) {
2256   VisitStmt(D);
2257   Record.skipInts(1);
2258   VisitOMPExecutableDirective(D);
2259 }
2260 
2261 void ASTStmtReader::VisitOMPTargetParallelForDirective(
2262     OMPTargetParallelForDirective *D) {
2263   VisitOMPLoopDirective(D);
2264   D->setHasCancel(Record.readInt());
2265 }
2266 
2267 void ASTStmtReader::VisitOMPTeamsDirective(OMPTeamsDirective *D) {
2268   VisitStmt(D);
2269   // The NumClauses field was read in ReadStmtFromStream.
2270   Record.skipInts(1);
2271   VisitOMPExecutableDirective(D);
2272 }
2273 
2274 void ASTStmtReader::VisitOMPCancellationPointDirective(
2275     OMPCancellationPointDirective *D) {
2276   VisitStmt(D);
2277   VisitOMPExecutableDirective(D);
2278   D->setCancelRegion(static_cast<OpenMPDirectiveKind>(Record.readInt()));
2279 }
2280 
2281 void ASTStmtReader::VisitOMPCancelDirective(OMPCancelDirective *D) {
2282   VisitStmt(D);
2283   // The NumClauses field was read in ReadStmtFromStream.
2284   Record.skipInts(1);
2285   VisitOMPExecutableDirective(D);
2286   D->setCancelRegion(static_cast<OpenMPDirectiveKind>(Record.readInt()));
2287 }
2288 
2289 void ASTStmtReader::VisitOMPTaskLoopDirective(OMPTaskLoopDirective *D) {
2290   VisitOMPLoopDirective(D);
2291 }
2292 
2293 void ASTStmtReader::VisitOMPTaskLoopSimdDirective(OMPTaskLoopSimdDirective *D) {
2294   VisitOMPLoopDirective(D);
2295 }
2296 
2297 void ASTStmtReader::VisitOMPMasterTaskLoopDirective(
2298     OMPMasterTaskLoopDirective *D) {
2299   VisitOMPLoopDirective(D);
2300 }
2301 
2302 void ASTStmtReader::VisitOMPParallelMasterTaskLoopDirective(
2303     OMPParallelMasterTaskLoopDirective *D) {
2304   VisitOMPLoopDirective(D);
2305 }
2306 
2307 void ASTStmtReader::VisitOMPDistributeDirective(OMPDistributeDirective *D) {
2308   VisitOMPLoopDirective(D);
2309 }
2310 
2311 void ASTStmtReader::VisitOMPTargetUpdateDirective(OMPTargetUpdateDirective *D) {
2312   VisitStmt(D);
2313   Record.skipInts(1);
2314   VisitOMPExecutableDirective(D);
2315 }
2316 
2317 void ASTStmtReader::VisitOMPDistributeParallelForDirective(
2318     OMPDistributeParallelForDirective *D) {
2319   VisitOMPLoopDirective(D);
2320   D->setHasCancel(Record.readInt());
2321 }
2322 
2323 void ASTStmtReader::VisitOMPDistributeParallelForSimdDirective(
2324     OMPDistributeParallelForSimdDirective *D) {
2325   VisitOMPLoopDirective(D);
2326 }
2327 
2328 void ASTStmtReader::VisitOMPDistributeSimdDirective(
2329     OMPDistributeSimdDirective *D) {
2330   VisitOMPLoopDirective(D);
2331 }
2332 
2333 void ASTStmtReader::VisitOMPTargetParallelForSimdDirective(
2334     OMPTargetParallelForSimdDirective *D) {
2335   VisitOMPLoopDirective(D);
2336 }
2337 
2338 void ASTStmtReader::VisitOMPTargetSimdDirective(OMPTargetSimdDirective *D) {
2339   VisitOMPLoopDirective(D);
2340 }
2341 
2342 void ASTStmtReader::VisitOMPTeamsDistributeDirective(
2343     OMPTeamsDistributeDirective *D) {
2344   VisitOMPLoopDirective(D);
2345 }
2346 
2347 void ASTStmtReader::VisitOMPTeamsDistributeSimdDirective(
2348     OMPTeamsDistributeSimdDirective *D) {
2349   VisitOMPLoopDirective(D);
2350 }
2351 
2352 void ASTStmtReader::VisitOMPTeamsDistributeParallelForSimdDirective(
2353     OMPTeamsDistributeParallelForSimdDirective *D) {
2354   VisitOMPLoopDirective(D);
2355 }
2356 
2357 void ASTStmtReader::VisitOMPTeamsDistributeParallelForDirective(
2358     OMPTeamsDistributeParallelForDirective *D) {
2359   VisitOMPLoopDirective(D);
2360   D->setHasCancel(Record.readInt());
2361 }
2362 
2363 void ASTStmtReader::VisitOMPTargetTeamsDirective(OMPTargetTeamsDirective *D) {
2364   VisitStmt(D);
2365   // The NumClauses field was read in ReadStmtFromStream.
2366   Record.skipInts(1);
2367   VisitOMPExecutableDirective(D);
2368 }
2369 
2370 void ASTStmtReader::VisitOMPTargetTeamsDistributeDirective(
2371     OMPTargetTeamsDistributeDirective *D) {
2372   VisitOMPLoopDirective(D);
2373 }
2374 
2375 void ASTStmtReader::VisitOMPTargetTeamsDistributeParallelForDirective(
2376     OMPTargetTeamsDistributeParallelForDirective *D) {
2377   VisitOMPLoopDirective(D);
2378   D->setHasCancel(Record.readInt());
2379 }
2380 
2381 void ASTStmtReader::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
2382     OMPTargetTeamsDistributeParallelForSimdDirective *D) {
2383   VisitOMPLoopDirective(D);
2384 }
2385 
2386 void ASTStmtReader::VisitOMPTargetTeamsDistributeSimdDirective(
2387     OMPTargetTeamsDistributeSimdDirective *D) {
2388   VisitOMPLoopDirective(D);
2389 }
2390 
2391 //===----------------------------------------------------------------------===//
2392 // ASTReader Implementation
2393 //===----------------------------------------------------------------------===//
2394 
2395 Stmt *ASTReader::ReadStmt(ModuleFile &F) {
2396   switch (ReadingKind) {
2397   case Read_None:
2398     llvm_unreachable("should not call this when not reading anything");
2399   case Read_Decl:
2400   case Read_Type:
2401     return ReadStmtFromStream(F);
2402   case Read_Stmt:
2403     return ReadSubStmt();
2404   }
2405 
2406   llvm_unreachable("ReadingKind not set ?");
2407 }
2408 
2409 Expr *ASTReader::ReadExpr(ModuleFile &F) {
2410   return cast_or_null<Expr>(ReadStmt(F));
2411 }
2412 
2413 Expr *ASTReader::ReadSubExpr() {
2414   return cast_or_null<Expr>(ReadSubStmt());
2415 }
2416 
2417 // Within the bitstream, expressions are stored in Reverse Polish
2418 // Notation, with each of the subexpressions preceding the
2419 // expression they are stored in. Subexpressions are stored from last to first.
2420 // To evaluate expressions, we continue reading expressions and placing them on
2421 // the stack, with expressions having operands removing those operands from the
2422 // stack. Evaluation terminates when we see a STMT_STOP record, and
2423 // the single remaining expression on the stack is our result.
2424 Stmt *ASTReader::ReadStmtFromStream(ModuleFile &F) {
2425   ReadingKindTracker ReadingKind(Read_Stmt, *this);
2426   llvm::BitstreamCursor &Cursor = F.DeclsCursor;
2427 
2428   // Map of offset to previously deserialized stmt. The offset points
2429   // just after the stmt record.
2430   llvm::DenseMap<uint64_t, Stmt *> StmtEntries;
2431 
2432 #ifndef NDEBUG
2433   unsigned PrevNumStmts = StmtStack.size();
2434 #endif
2435 
2436   ASTRecordReader Record(*this, F);
2437   ASTStmtReader Reader(Record, Cursor);
2438   Stmt::EmptyShell Empty;
2439 
2440   while (true) {
2441     llvm::Expected<llvm::BitstreamEntry> MaybeEntry =
2442         Cursor.advanceSkippingSubblocks();
2443     if (!MaybeEntry) {
2444       Error(toString(MaybeEntry.takeError()));
2445       return nullptr;
2446     }
2447     llvm::BitstreamEntry Entry = MaybeEntry.get();
2448 
2449     switch (Entry.Kind) {
2450     case llvm::BitstreamEntry::SubBlock: // Handled for us already.
2451     case llvm::BitstreamEntry::Error:
2452       Error("malformed block record in AST file");
2453       return nullptr;
2454     case llvm::BitstreamEntry::EndBlock:
2455       goto Done;
2456     case llvm::BitstreamEntry::Record:
2457       // The interesting case.
2458       break;
2459     }
2460 
2461     ASTContext &Context = getContext();
2462     Stmt *S = nullptr;
2463     bool Finished = false;
2464     bool IsStmtReference = false;
2465     Expected<unsigned> MaybeStmtCode = Record.readRecord(Cursor, Entry.ID);
2466     if (!MaybeStmtCode) {
2467       Error(toString(MaybeStmtCode.takeError()));
2468       return nullptr;
2469     }
2470     switch ((StmtCode)MaybeStmtCode.get()) {
2471     case STMT_STOP:
2472       Finished = true;
2473       break;
2474 
2475     case STMT_REF_PTR:
2476       IsStmtReference = true;
2477       assert(StmtEntries.find(Record[0]) != StmtEntries.end() &&
2478              "No stmt was recorded for this offset reference!");
2479       S = StmtEntries[Record.readInt()];
2480       break;
2481 
2482     case STMT_NULL_PTR:
2483       S = nullptr;
2484       break;
2485 
2486     case STMT_NULL:
2487       S = new (Context) NullStmt(Empty);
2488       break;
2489 
2490     case STMT_COMPOUND:
2491       S = CompoundStmt::CreateEmpty(
2492           Context, /*NumStmts=*/Record[ASTStmtReader::NumStmtFields]);
2493       break;
2494 
2495     case STMT_CASE:
2496       S = CaseStmt::CreateEmpty(
2497           Context,
2498           /*CaseStmtIsGNURange*/ Record[ASTStmtReader::NumStmtFields + 3]);
2499       break;
2500 
2501     case STMT_DEFAULT:
2502       S = new (Context) DefaultStmt(Empty);
2503       break;
2504 
2505     case STMT_LABEL:
2506       S = new (Context) LabelStmt(Empty);
2507       break;
2508 
2509     case STMT_ATTRIBUTED:
2510       S = AttributedStmt::CreateEmpty(
2511         Context,
2512         /*NumAttrs*/Record[ASTStmtReader::NumStmtFields]);
2513       break;
2514 
2515     case STMT_IF:
2516       S = IfStmt::CreateEmpty(
2517           Context,
2518           /* HasElse=*/Record[ASTStmtReader::NumStmtFields + 1],
2519           /* HasVar=*/Record[ASTStmtReader::NumStmtFields + 2],
2520           /* HasInit=*/Record[ASTStmtReader::NumStmtFields + 3]);
2521       break;
2522 
2523     case STMT_SWITCH:
2524       S = SwitchStmt::CreateEmpty(
2525           Context,
2526           /* HasInit=*/Record[ASTStmtReader::NumStmtFields],
2527           /* HasVar=*/Record[ASTStmtReader::NumStmtFields + 1]);
2528       break;
2529 
2530     case STMT_WHILE:
2531       S = WhileStmt::CreateEmpty(
2532           Context,
2533           /* HasVar=*/Record[ASTStmtReader::NumStmtFields]);
2534       break;
2535 
2536     case STMT_DO:
2537       S = new (Context) DoStmt(Empty);
2538       break;
2539 
2540     case STMT_FOR:
2541       S = new (Context) ForStmt(Empty);
2542       break;
2543 
2544     case STMT_GOTO:
2545       S = new (Context) GotoStmt(Empty);
2546       break;
2547 
2548     case STMT_INDIRECT_GOTO:
2549       S = new (Context) IndirectGotoStmt(Empty);
2550       break;
2551 
2552     case STMT_CONTINUE:
2553       S = new (Context) ContinueStmt(Empty);
2554       break;
2555 
2556     case STMT_BREAK:
2557       S = new (Context) BreakStmt(Empty);
2558       break;
2559 
2560     case STMT_RETURN:
2561       S = ReturnStmt::CreateEmpty(
2562           Context, /* HasNRVOCandidate=*/Record[ASTStmtReader::NumStmtFields]);
2563       break;
2564 
2565     case STMT_DECL:
2566       S = new (Context) DeclStmt(Empty);
2567       break;
2568 
2569     case STMT_GCCASM:
2570       S = new (Context) GCCAsmStmt(Empty);
2571       break;
2572 
2573     case STMT_MSASM:
2574       S = new (Context) MSAsmStmt(Empty);
2575       break;
2576 
2577     case STMT_CAPTURED:
2578       S = CapturedStmt::CreateDeserialized(
2579           Context, Record[ASTStmtReader::NumStmtFields]);
2580       break;
2581 
2582     case EXPR_CONSTANT:
2583       S = ConstantExpr::CreateEmpty(
2584           Context,
2585           static_cast<ConstantExpr::ResultStorageKind>(
2586               Record[ASTStmtReader::NumExprFields]),
2587           Empty);
2588       break;
2589 
2590     case EXPR_PREDEFINED:
2591       S = PredefinedExpr::CreateEmpty(
2592           Context,
2593           /*HasFunctionName*/ Record[ASTStmtReader::NumExprFields]);
2594       break;
2595 
2596     case EXPR_DECL_REF:
2597       S = DeclRefExpr::CreateEmpty(
2598         Context,
2599         /*HasQualifier=*/Record[ASTStmtReader::NumExprFields],
2600         /*HasFoundDecl=*/Record[ASTStmtReader::NumExprFields + 1],
2601         /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields + 2],
2602         /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields + 2] ?
2603           Record[ASTStmtReader::NumExprFields + 6] : 0);
2604       break;
2605 
2606     case EXPR_INTEGER_LITERAL:
2607       S = IntegerLiteral::Create(Context, Empty);
2608       break;
2609 
2610     case EXPR_FLOATING_LITERAL:
2611       S = FloatingLiteral::Create(Context, Empty);
2612       break;
2613 
2614     case EXPR_IMAGINARY_LITERAL:
2615       S = new (Context) ImaginaryLiteral(Empty);
2616       break;
2617 
2618     case EXPR_STRING_LITERAL:
2619       S = StringLiteral::CreateEmpty(
2620           Context,
2621           /* NumConcatenated=*/Record[ASTStmtReader::NumExprFields],
2622           /* Length=*/Record[ASTStmtReader::NumExprFields + 1],
2623           /* CharByteWidth=*/Record[ASTStmtReader::NumExprFields + 2]);
2624       break;
2625 
2626     case EXPR_CHARACTER_LITERAL:
2627       S = new (Context) CharacterLiteral(Empty);
2628       break;
2629 
2630     case EXPR_PAREN:
2631       S = new (Context) ParenExpr(Empty);
2632       break;
2633 
2634     case EXPR_PAREN_LIST:
2635       S = ParenListExpr::CreateEmpty(
2636           Context,
2637           /* NumExprs=*/Record[ASTStmtReader::NumExprFields]);
2638       break;
2639 
2640     case EXPR_UNARY_OPERATOR:
2641       S = new (Context) UnaryOperator(Empty);
2642       break;
2643 
2644     case EXPR_OFFSETOF:
2645       S = OffsetOfExpr::CreateEmpty(Context,
2646                                     Record[ASTStmtReader::NumExprFields],
2647                                     Record[ASTStmtReader::NumExprFields + 1]);
2648       break;
2649 
2650     case EXPR_SIZEOF_ALIGN_OF:
2651       S = new (Context) UnaryExprOrTypeTraitExpr(Empty);
2652       break;
2653 
2654     case EXPR_ARRAY_SUBSCRIPT:
2655       S = new (Context) ArraySubscriptExpr(Empty);
2656       break;
2657 
2658     case EXPR_OMP_ARRAY_SECTION:
2659       S = new (Context) OMPArraySectionExpr(Empty);
2660       break;
2661 
2662     case EXPR_CALL:
2663       S = CallExpr::CreateEmpty(
2664           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields], Empty);
2665       break;
2666 
2667     case EXPR_MEMBER:
2668       S = MemberExpr::CreateEmpty(Context, Record[ASTStmtReader::NumExprFields],
2669                                   Record[ASTStmtReader::NumExprFields + 1],
2670                                   Record[ASTStmtReader::NumExprFields + 2],
2671                                   Record[ASTStmtReader::NumExprFields + 3]);
2672       break;
2673 
2674     case EXPR_BINARY_OPERATOR:
2675       S = new (Context) BinaryOperator(Empty);
2676       break;
2677 
2678     case EXPR_COMPOUND_ASSIGN_OPERATOR:
2679       S = new (Context) CompoundAssignOperator(Empty);
2680       break;
2681 
2682     case EXPR_CONDITIONAL_OPERATOR:
2683       S = new (Context) ConditionalOperator(Empty);
2684       break;
2685 
2686     case EXPR_BINARY_CONDITIONAL_OPERATOR:
2687       S = new (Context) BinaryConditionalOperator(Empty);
2688       break;
2689 
2690     case EXPR_IMPLICIT_CAST:
2691       S = ImplicitCastExpr::CreateEmpty(Context,
2692                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
2693       break;
2694 
2695     case EXPR_CSTYLE_CAST:
2696       S = CStyleCastExpr::CreateEmpty(Context,
2697                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
2698       break;
2699 
2700     case EXPR_COMPOUND_LITERAL:
2701       S = new (Context) CompoundLiteralExpr(Empty);
2702       break;
2703 
2704     case EXPR_EXT_VECTOR_ELEMENT:
2705       S = new (Context) ExtVectorElementExpr(Empty);
2706       break;
2707 
2708     case EXPR_INIT_LIST:
2709       S = new (Context) InitListExpr(Empty);
2710       break;
2711 
2712     case EXPR_DESIGNATED_INIT:
2713       S = DesignatedInitExpr::CreateEmpty(Context,
2714                                      Record[ASTStmtReader::NumExprFields] - 1);
2715 
2716       break;
2717 
2718     case EXPR_DESIGNATED_INIT_UPDATE:
2719       S = new (Context) DesignatedInitUpdateExpr(Empty);
2720       break;
2721 
2722     case EXPR_IMPLICIT_VALUE_INIT:
2723       S = new (Context) ImplicitValueInitExpr(Empty);
2724       break;
2725 
2726     case EXPR_NO_INIT:
2727       S = new (Context) NoInitExpr(Empty);
2728       break;
2729 
2730     case EXPR_ARRAY_INIT_LOOP:
2731       S = new (Context) ArrayInitLoopExpr(Empty);
2732       break;
2733 
2734     case EXPR_ARRAY_INIT_INDEX:
2735       S = new (Context) ArrayInitIndexExpr(Empty);
2736       break;
2737 
2738     case EXPR_VA_ARG:
2739       S = new (Context) VAArgExpr(Empty);
2740       break;
2741 
2742     case EXPR_SOURCE_LOC:
2743       S = new (Context) SourceLocExpr(Empty);
2744       break;
2745 
2746     case EXPR_ADDR_LABEL:
2747       S = new (Context) AddrLabelExpr(Empty);
2748       break;
2749 
2750     case EXPR_STMT:
2751       S = new (Context) StmtExpr(Empty);
2752       break;
2753 
2754     case EXPR_CHOOSE:
2755       S = new (Context) ChooseExpr(Empty);
2756       break;
2757 
2758     case EXPR_GNU_NULL:
2759       S = new (Context) GNUNullExpr(Empty);
2760       break;
2761 
2762     case EXPR_SHUFFLE_VECTOR:
2763       S = new (Context) ShuffleVectorExpr(Empty);
2764       break;
2765 
2766     case EXPR_CONVERT_VECTOR:
2767       S = new (Context) ConvertVectorExpr(Empty);
2768       break;
2769 
2770     case EXPR_BLOCK:
2771       S = new (Context) BlockExpr(Empty);
2772       break;
2773 
2774     case EXPR_GENERIC_SELECTION:
2775       S = GenericSelectionExpr::CreateEmpty(
2776           Context,
2777           /*NumAssocs=*/Record[ASTStmtReader::NumExprFields]);
2778       break;
2779 
2780     case EXPR_OBJC_STRING_LITERAL:
2781       S = new (Context) ObjCStringLiteral(Empty);
2782       break;
2783 
2784     case EXPR_OBJC_BOXED_EXPRESSION:
2785       S = new (Context) ObjCBoxedExpr(Empty);
2786       break;
2787 
2788     case EXPR_OBJC_ARRAY_LITERAL:
2789       S = ObjCArrayLiteral::CreateEmpty(Context,
2790                                         Record[ASTStmtReader::NumExprFields]);
2791       break;
2792 
2793     case EXPR_OBJC_DICTIONARY_LITERAL:
2794       S = ObjCDictionaryLiteral::CreateEmpty(Context,
2795             Record[ASTStmtReader::NumExprFields],
2796             Record[ASTStmtReader::NumExprFields + 1]);
2797       break;
2798 
2799     case EXPR_OBJC_ENCODE:
2800       S = new (Context) ObjCEncodeExpr(Empty);
2801       break;
2802 
2803     case EXPR_OBJC_SELECTOR_EXPR:
2804       S = new (Context) ObjCSelectorExpr(Empty);
2805       break;
2806 
2807     case EXPR_OBJC_PROTOCOL_EXPR:
2808       S = new (Context) ObjCProtocolExpr(Empty);
2809       break;
2810 
2811     case EXPR_OBJC_IVAR_REF_EXPR:
2812       S = new (Context) ObjCIvarRefExpr(Empty);
2813       break;
2814 
2815     case EXPR_OBJC_PROPERTY_REF_EXPR:
2816       S = new (Context) ObjCPropertyRefExpr(Empty);
2817       break;
2818 
2819     case EXPR_OBJC_SUBSCRIPT_REF_EXPR:
2820       S = new (Context) ObjCSubscriptRefExpr(Empty);
2821       break;
2822 
2823     case EXPR_OBJC_KVC_REF_EXPR:
2824       llvm_unreachable("mismatching AST file");
2825 
2826     case EXPR_OBJC_MESSAGE_EXPR:
2827       S = ObjCMessageExpr::CreateEmpty(Context,
2828                                      Record[ASTStmtReader::NumExprFields],
2829                                      Record[ASTStmtReader::NumExprFields + 1]);
2830       break;
2831 
2832     case EXPR_OBJC_ISA:
2833       S = new (Context) ObjCIsaExpr(Empty);
2834       break;
2835 
2836     case EXPR_OBJC_INDIRECT_COPY_RESTORE:
2837       S = new (Context) ObjCIndirectCopyRestoreExpr(Empty);
2838       break;
2839 
2840     case EXPR_OBJC_BRIDGED_CAST:
2841       S = new (Context) ObjCBridgedCastExpr(Empty);
2842       break;
2843 
2844     case STMT_OBJC_FOR_COLLECTION:
2845       S = new (Context) ObjCForCollectionStmt(Empty);
2846       break;
2847 
2848     case STMT_OBJC_CATCH:
2849       S = new (Context) ObjCAtCatchStmt(Empty);
2850       break;
2851 
2852     case STMT_OBJC_FINALLY:
2853       S = new (Context) ObjCAtFinallyStmt(Empty);
2854       break;
2855 
2856     case STMT_OBJC_AT_TRY:
2857       S = ObjCAtTryStmt::CreateEmpty(Context,
2858                                      Record[ASTStmtReader::NumStmtFields],
2859                                      Record[ASTStmtReader::NumStmtFields + 1]);
2860       break;
2861 
2862     case STMT_OBJC_AT_SYNCHRONIZED:
2863       S = new (Context) ObjCAtSynchronizedStmt(Empty);
2864       break;
2865 
2866     case STMT_OBJC_AT_THROW:
2867       S = new (Context) ObjCAtThrowStmt(Empty);
2868       break;
2869 
2870     case STMT_OBJC_AUTORELEASE_POOL:
2871       S = new (Context) ObjCAutoreleasePoolStmt(Empty);
2872       break;
2873 
2874     case EXPR_OBJC_BOOL_LITERAL:
2875       S = new (Context) ObjCBoolLiteralExpr(Empty);
2876       break;
2877 
2878     case EXPR_OBJC_AVAILABILITY_CHECK:
2879       S = new (Context) ObjCAvailabilityCheckExpr(Empty);
2880       break;
2881 
2882     case STMT_SEH_LEAVE:
2883       S = new (Context) SEHLeaveStmt(Empty);
2884       break;
2885 
2886     case STMT_SEH_EXCEPT:
2887       S = new (Context) SEHExceptStmt(Empty);
2888       break;
2889 
2890     case STMT_SEH_FINALLY:
2891       S = new (Context) SEHFinallyStmt(Empty);
2892       break;
2893 
2894     case STMT_SEH_TRY:
2895       S = new (Context) SEHTryStmt(Empty);
2896       break;
2897 
2898     case STMT_CXX_CATCH:
2899       S = new (Context) CXXCatchStmt(Empty);
2900       break;
2901 
2902     case STMT_CXX_TRY:
2903       S = CXXTryStmt::Create(Context, Empty,
2904              /*numHandlers=*/Record[ASTStmtReader::NumStmtFields]);
2905       break;
2906 
2907     case STMT_CXX_FOR_RANGE:
2908       S = new (Context) CXXForRangeStmt(Empty);
2909       break;
2910 
2911     case STMT_MS_DEPENDENT_EXISTS:
2912       S = new (Context) MSDependentExistsStmt(SourceLocation(), true,
2913                                               NestedNameSpecifierLoc(),
2914                                               DeclarationNameInfo(),
2915                                               nullptr);
2916       break;
2917 
2918     case STMT_OMP_PARALLEL_DIRECTIVE:
2919       S =
2920         OMPParallelDirective::CreateEmpty(Context,
2921                                           Record[ASTStmtReader::NumStmtFields],
2922                                           Empty);
2923       break;
2924 
2925     case STMT_OMP_SIMD_DIRECTIVE: {
2926       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2927       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2928       S = OMPSimdDirective::CreateEmpty(Context, NumClauses,
2929                                         CollapsedNum, Empty);
2930       break;
2931     }
2932 
2933     case STMT_OMP_FOR_DIRECTIVE: {
2934       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2935       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2936       S = OMPForDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2937                                        Empty);
2938       break;
2939     }
2940 
2941     case STMT_OMP_FOR_SIMD_DIRECTIVE: {
2942       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2943       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2944       S = OMPForSimdDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
2945                                            Empty);
2946       break;
2947     }
2948 
2949     case STMT_OMP_SECTIONS_DIRECTIVE:
2950       S = OMPSectionsDirective::CreateEmpty(
2951           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2952       break;
2953 
2954     case STMT_OMP_SECTION_DIRECTIVE:
2955       S = OMPSectionDirective::CreateEmpty(Context, Empty);
2956       break;
2957 
2958     case STMT_OMP_SINGLE_DIRECTIVE:
2959       S = OMPSingleDirective::CreateEmpty(
2960           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2961       break;
2962 
2963     case STMT_OMP_MASTER_DIRECTIVE:
2964       S = OMPMasterDirective::CreateEmpty(Context, Empty);
2965       break;
2966 
2967     case STMT_OMP_CRITICAL_DIRECTIVE:
2968       S = OMPCriticalDirective::CreateEmpty(
2969           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2970       break;
2971 
2972     case STMT_OMP_PARALLEL_FOR_DIRECTIVE: {
2973       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2974       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2975       S = OMPParallelForDirective::CreateEmpty(Context, NumClauses,
2976                                                CollapsedNum, Empty);
2977       break;
2978     }
2979 
2980     case STMT_OMP_PARALLEL_FOR_SIMD_DIRECTIVE: {
2981       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
2982       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
2983       S = OMPParallelForSimdDirective::CreateEmpty(Context, NumClauses,
2984                                                    CollapsedNum, Empty);
2985       break;
2986     }
2987 
2988     case STMT_OMP_PARALLEL_SECTIONS_DIRECTIVE:
2989       S = OMPParallelSectionsDirective::CreateEmpty(
2990           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2991       break;
2992 
2993     case STMT_OMP_TASK_DIRECTIVE:
2994       S = OMPTaskDirective::CreateEmpty(
2995           Context, Record[ASTStmtReader::NumStmtFields], Empty);
2996       break;
2997 
2998     case STMT_OMP_TASKYIELD_DIRECTIVE:
2999       S = OMPTaskyieldDirective::CreateEmpty(Context, Empty);
3000       break;
3001 
3002     case STMT_OMP_BARRIER_DIRECTIVE:
3003       S = OMPBarrierDirective::CreateEmpty(Context, Empty);
3004       break;
3005 
3006     case STMT_OMP_TASKWAIT_DIRECTIVE:
3007       S = OMPTaskwaitDirective::CreateEmpty(Context, Empty);
3008       break;
3009 
3010     case STMT_OMP_TASKGROUP_DIRECTIVE:
3011       S = OMPTaskgroupDirective::CreateEmpty(
3012           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3013       break;
3014 
3015     case STMT_OMP_FLUSH_DIRECTIVE:
3016       S = OMPFlushDirective::CreateEmpty(
3017           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3018       break;
3019 
3020     case STMT_OMP_ORDERED_DIRECTIVE:
3021       S = OMPOrderedDirective::CreateEmpty(
3022           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3023       break;
3024 
3025     case STMT_OMP_ATOMIC_DIRECTIVE:
3026       S = OMPAtomicDirective::CreateEmpty(
3027           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3028       break;
3029 
3030     case STMT_OMP_TARGET_DIRECTIVE:
3031       S = OMPTargetDirective::CreateEmpty(
3032           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3033       break;
3034 
3035     case STMT_OMP_TARGET_DATA_DIRECTIVE:
3036       S = OMPTargetDataDirective::CreateEmpty(
3037           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3038       break;
3039 
3040     case STMT_OMP_TARGET_ENTER_DATA_DIRECTIVE:
3041       S = OMPTargetEnterDataDirective::CreateEmpty(
3042           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3043       break;
3044 
3045     case STMT_OMP_TARGET_EXIT_DATA_DIRECTIVE:
3046       S = OMPTargetExitDataDirective::CreateEmpty(
3047           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3048       break;
3049 
3050     case STMT_OMP_TARGET_PARALLEL_DIRECTIVE:
3051       S = OMPTargetParallelDirective::CreateEmpty(
3052           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3053       break;
3054 
3055     case STMT_OMP_TARGET_PARALLEL_FOR_DIRECTIVE: {
3056       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
3057       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3058       S = OMPTargetParallelForDirective::CreateEmpty(Context, NumClauses,
3059                                                      CollapsedNum, Empty);
3060       break;
3061     }
3062 
3063     case STMT_OMP_TARGET_UPDATE_DIRECTIVE:
3064       S = OMPTargetUpdateDirective::CreateEmpty(
3065           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3066       break;
3067 
3068     case STMT_OMP_TEAMS_DIRECTIVE:
3069       S = OMPTeamsDirective::CreateEmpty(
3070           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3071       break;
3072 
3073     case STMT_OMP_CANCELLATION_POINT_DIRECTIVE:
3074       S = OMPCancellationPointDirective::CreateEmpty(Context, Empty);
3075       break;
3076 
3077     case STMT_OMP_CANCEL_DIRECTIVE:
3078       S = OMPCancelDirective::CreateEmpty(
3079           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3080       break;
3081 
3082     case STMT_OMP_TASKLOOP_DIRECTIVE: {
3083       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
3084       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3085       S = OMPTaskLoopDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
3086                                             Empty);
3087       break;
3088     }
3089 
3090     case STMT_OMP_TASKLOOP_SIMD_DIRECTIVE: {
3091       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
3092       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3093       S = OMPTaskLoopSimdDirective::CreateEmpty(Context, NumClauses,
3094                                                 CollapsedNum, Empty);
3095       break;
3096     }
3097 
3098     case STMT_OMP_MASTER_TASKLOOP_DIRECTIVE: {
3099       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
3100       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3101       S = OMPMasterTaskLoopDirective::CreateEmpty(Context, NumClauses,
3102                                                   CollapsedNum, Empty);
3103       break;
3104     }
3105 
3106     case STMT_OMP_PARALLEL_MASTER_TASKLOOP_DIRECTIVE: {
3107       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
3108       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3109       S = OMPParallelMasterTaskLoopDirective::CreateEmpty(Context, NumClauses,
3110                                                           CollapsedNum, Empty);
3111       break;
3112     }
3113 
3114     case STMT_OMP_DISTRIBUTE_DIRECTIVE: {
3115       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
3116       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3117       S = OMPDistributeDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
3118                                               Empty);
3119       break;
3120     }
3121 
3122     case STMT_OMP_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
3123       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
3124       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3125       S = OMPDistributeParallelForDirective::CreateEmpty(Context, NumClauses,
3126                                                          CollapsedNum, Empty);
3127       break;
3128     }
3129 
3130     case STMT_OMP_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
3131       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
3132       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3133       S = OMPDistributeParallelForSimdDirective::CreateEmpty(Context, NumClauses,
3134                                                              CollapsedNum,
3135                                                              Empty);
3136       break;
3137     }
3138 
3139     case STMT_OMP_DISTRIBUTE_SIMD_DIRECTIVE: {
3140       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
3141       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3142       S = OMPDistributeSimdDirective::CreateEmpty(Context, NumClauses,
3143                                                   CollapsedNum, Empty);
3144       break;
3145     }
3146 
3147     case STMT_OMP_TARGET_PARALLEL_FOR_SIMD_DIRECTIVE: {
3148       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
3149       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3150       S = OMPTargetParallelForSimdDirective::CreateEmpty(Context, NumClauses,
3151                                                          CollapsedNum, Empty);
3152       break;
3153     }
3154 
3155     case STMT_OMP_TARGET_SIMD_DIRECTIVE: {
3156       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
3157       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3158       S = OMPTargetSimdDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
3159                                               Empty);
3160       break;
3161     }
3162 
3163      case STMT_OMP_TEAMS_DISTRIBUTE_DIRECTIVE: {
3164       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
3165       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3166       S = OMPTeamsDistributeDirective::CreateEmpty(Context, NumClauses,
3167                                                    CollapsedNum, Empty);
3168       break;
3169     }
3170 
3171     case STMT_OMP_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE: {
3172       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
3173       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3174       S = OMPTeamsDistributeSimdDirective::CreateEmpty(Context, NumClauses,
3175                                                        CollapsedNum, Empty);
3176       break;
3177     }
3178 
3179     case STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
3180       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
3181       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3182       S = OMPTeamsDistributeParallelForSimdDirective::CreateEmpty(
3183           Context, NumClauses, CollapsedNum, Empty);
3184       break;
3185     }
3186 
3187     case STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
3188       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
3189       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3190       S = OMPTeamsDistributeParallelForDirective::CreateEmpty(
3191           Context, NumClauses, CollapsedNum, Empty);
3192       break;
3193     }
3194 
3195     case STMT_OMP_TARGET_TEAMS_DIRECTIVE:
3196       S = OMPTargetTeamsDirective::CreateEmpty(
3197           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3198       break;
3199 
3200     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_DIRECTIVE: {
3201       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
3202       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3203       S = OMPTargetTeamsDistributeDirective::CreateEmpty(Context, NumClauses,
3204                                                          CollapsedNum, Empty);
3205       break;
3206     }
3207 
3208     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
3209       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
3210       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3211       S = OMPTargetTeamsDistributeParallelForDirective::CreateEmpty(
3212           Context, NumClauses, CollapsedNum, Empty);
3213       break;
3214     }
3215 
3216     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
3217       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
3218       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3219       S = OMPTargetTeamsDistributeParallelForSimdDirective::CreateEmpty(
3220           Context, NumClauses, CollapsedNum, Empty);
3221       break;
3222     }
3223 
3224     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE: {
3225       auto NumClauses = Record[ASTStmtReader::NumStmtFields];
3226       auto CollapsedNum = Record[ASTStmtReader::NumStmtFields + 1];
3227       S = OMPTargetTeamsDistributeSimdDirective::CreateEmpty(
3228           Context, NumClauses, CollapsedNum, Empty);
3229       break;
3230     }
3231 
3232     case EXPR_CXX_OPERATOR_CALL:
3233       S = CXXOperatorCallExpr::CreateEmpty(
3234           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields], Empty);
3235       break;
3236 
3237     case EXPR_CXX_MEMBER_CALL:
3238       S = CXXMemberCallExpr::CreateEmpty(
3239           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields], Empty);
3240       break;
3241 
3242     case EXPR_CXX_CONSTRUCT:
3243       S = CXXConstructExpr::CreateEmpty(
3244           Context,
3245           /* NumArgs=*/Record[ASTStmtReader::NumExprFields]);
3246       break;
3247 
3248     case EXPR_CXX_INHERITED_CTOR_INIT:
3249       S = new (Context) CXXInheritedCtorInitExpr(Empty);
3250       break;
3251 
3252     case EXPR_CXX_TEMPORARY_OBJECT:
3253       S = CXXTemporaryObjectExpr::CreateEmpty(
3254           Context,
3255           /* NumArgs=*/Record[ASTStmtReader::NumExprFields]);
3256       break;
3257 
3258     case EXPR_CXX_STATIC_CAST:
3259       S = CXXStaticCastExpr::CreateEmpty(Context,
3260                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3261       break;
3262 
3263     case EXPR_CXX_DYNAMIC_CAST:
3264       S = CXXDynamicCastExpr::CreateEmpty(Context,
3265                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3266       break;
3267 
3268     case EXPR_CXX_REINTERPRET_CAST:
3269       S = CXXReinterpretCastExpr::CreateEmpty(Context,
3270                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3271       break;
3272 
3273     case EXPR_CXX_CONST_CAST:
3274       S = CXXConstCastExpr::CreateEmpty(Context);
3275       break;
3276 
3277     case EXPR_CXX_FUNCTIONAL_CAST:
3278       S = CXXFunctionalCastExpr::CreateEmpty(Context,
3279                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3280       break;
3281 
3282     case EXPR_USER_DEFINED_LITERAL:
3283       S = UserDefinedLiteral::CreateEmpty(
3284           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields], Empty);
3285       break;
3286 
3287     case EXPR_CXX_STD_INITIALIZER_LIST:
3288       S = new (Context) CXXStdInitializerListExpr(Empty);
3289       break;
3290 
3291     case EXPR_CXX_BOOL_LITERAL:
3292       S = new (Context) CXXBoolLiteralExpr(Empty);
3293       break;
3294 
3295     case EXPR_CXX_NULL_PTR_LITERAL:
3296       S = new (Context) CXXNullPtrLiteralExpr(Empty);
3297       break;
3298 
3299     case EXPR_CXX_TYPEID_EXPR:
3300       S = new (Context) CXXTypeidExpr(Empty, true);
3301       break;
3302 
3303     case EXPR_CXX_TYPEID_TYPE:
3304       S = new (Context) CXXTypeidExpr(Empty, false);
3305       break;
3306 
3307     case EXPR_CXX_UUIDOF_EXPR:
3308       S = new (Context) CXXUuidofExpr(Empty, true);
3309       break;
3310 
3311     case EXPR_CXX_PROPERTY_REF_EXPR:
3312       S = new (Context) MSPropertyRefExpr(Empty);
3313       break;
3314 
3315     case EXPR_CXX_PROPERTY_SUBSCRIPT_EXPR:
3316       S = new (Context) MSPropertySubscriptExpr(Empty);
3317       break;
3318 
3319     case EXPR_CXX_UUIDOF_TYPE:
3320       S = new (Context) CXXUuidofExpr(Empty, false);
3321       break;
3322 
3323     case EXPR_CXX_THIS:
3324       S = new (Context) CXXThisExpr(Empty);
3325       break;
3326 
3327     case EXPR_CXX_THROW:
3328       S = new (Context) CXXThrowExpr(Empty);
3329       break;
3330 
3331     case EXPR_CXX_DEFAULT_ARG:
3332       S = new (Context) CXXDefaultArgExpr(Empty);
3333       break;
3334 
3335     case EXPR_CXX_DEFAULT_INIT:
3336       S = new (Context) CXXDefaultInitExpr(Empty);
3337       break;
3338 
3339     case EXPR_CXX_BIND_TEMPORARY:
3340       S = new (Context) CXXBindTemporaryExpr(Empty);
3341       break;
3342 
3343     case EXPR_CXX_SCALAR_VALUE_INIT:
3344       S = new (Context) CXXScalarValueInitExpr(Empty);
3345       break;
3346 
3347     case EXPR_CXX_NEW:
3348       S = CXXNewExpr::CreateEmpty(
3349           Context,
3350           /*IsArray=*/Record[ASTStmtReader::NumExprFields],
3351           /*HasInit=*/Record[ASTStmtReader::NumExprFields + 1],
3352           /*NumPlacementArgs=*/Record[ASTStmtReader::NumExprFields + 2],
3353           /*IsParenTypeId=*/Record[ASTStmtReader::NumExprFields + 3]);
3354       break;
3355 
3356     case EXPR_CXX_DELETE:
3357       S = new (Context) CXXDeleteExpr(Empty);
3358       break;
3359 
3360     case EXPR_CXX_PSEUDO_DESTRUCTOR:
3361       S = new (Context) CXXPseudoDestructorExpr(Empty);
3362       break;
3363 
3364     case EXPR_EXPR_WITH_CLEANUPS:
3365       S = ExprWithCleanups::Create(Context, Empty,
3366                                    Record[ASTStmtReader::NumExprFields]);
3367       break;
3368 
3369     case EXPR_CXX_DEPENDENT_SCOPE_MEMBER:
3370       S = CXXDependentScopeMemberExpr::CreateEmpty(
3371           Context,
3372           /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3373           /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields + 1],
3374           /*HasFirstQualifierFoundInScope=*/
3375           Record[ASTStmtReader::NumExprFields + 2]);
3376       break;
3377 
3378     case EXPR_CXX_DEPENDENT_SCOPE_DECL_REF:
3379       S = DependentScopeDeclRefExpr::CreateEmpty(Context,
3380          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3381                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
3382                                    ? Record[ASTStmtReader::NumExprFields + 1]
3383                                    : 0);
3384       break;
3385 
3386     case EXPR_CXX_UNRESOLVED_CONSTRUCT:
3387       S = CXXUnresolvedConstructExpr::CreateEmpty(Context,
3388                               /*NumArgs=*/Record[ASTStmtReader::NumExprFields]);
3389       break;
3390 
3391     case EXPR_CXX_UNRESOLVED_MEMBER:
3392       S = UnresolvedMemberExpr::CreateEmpty(
3393           Context,
3394           /*NumResults=*/Record[ASTStmtReader::NumExprFields],
3395           /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields + 1],
3396           /*NumTemplateArgs=*/
3397           Record[ASTStmtReader::NumExprFields + 1]
3398               ? Record[ASTStmtReader::NumExprFields + 2]
3399               : 0);
3400       break;
3401 
3402     case EXPR_CXX_UNRESOLVED_LOOKUP:
3403       S = UnresolvedLookupExpr::CreateEmpty(
3404           Context,
3405           /*NumResults=*/Record[ASTStmtReader::NumExprFields],
3406           /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields + 1],
3407           /*NumTemplateArgs=*/
3408           Record[ASTStmtReader::NumExprFields + 1]
3409               ? Record[ASTStmtReader::NumExprFields + 2]
3410               : 0);
3411       break;
3412 
3413     case EXPR_TYPE_TRAIT:
3414       S = TypeTraitExpr::CreateDeserialized(Context,
3415             Record[ASTStmtReader::NumExprFields]);
3416       break;
3417 
3418     case EXPR_ARRAY_TYPE_TRAIT:
3419       S = new (Context) ArrayTypeTraitExpr(Empty);
3420       break;
3421 
3422     case EXPR_CXX_EXPRESSION_TRAIT:
3423       S = new (Context) ExpressionTraitExpr(Empty);
3424       break;
3425 
3426     case EXPR_CXX_NOEXCEPT:
3427       S = new (Context) CXXNoexceptExpr(Empty);
3428       break;
3429 
3430     case EXPR_PACK_EXPANSION:
3431       S = new (Context) PackExpansionExpr(Empty);
3432       break;
3433 
3434     case EXPR_SIZEOF_PACK:
3435       S = SizeOfPackExpr::CreateDeserialized(
3436               Context,
3437               /*NumPartialArgs=*/Record[ASTStmtReader::NumExprFields]);
3438       break;
3439 
3440     case EXPR_SUBST_NON_TYPE_TEMPLATE_PARM:
3441       S = new (Context) SubstNonTypeTemplateParmExpr(Empty);
3442       break;
3443 
3444     case EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK:
3445       S = new (Context) SubstNonTypeTemplateParmPackExpr(Empty);
3446       break;
3447 
3448     case EXPR_FUNCTION_PARM_PACK:
3449       S = FunctionParmPackExpr::CreateEmpty(Context,
3450                                           Record[ASTStmtReader::NumExprFields]);
3451       break;
3452 
3453     case EXPR_MATERIALIZE_TEMPORARY:
3454       S = new (Context) MaterializeTemporaryExpr(Empty);
3455       break;
3456 
3457     case EXPR_CXX_FOLD:
3458       S = new (Context) CXXFoldExpr(Empty);
3459       break;
3460 
3461     case EXPR_OPAQUE_VALUE:
3462       S = new (Context) OpaqueValueExpr(Empty);
3463       break;
3464 
3465     case EXPR_CUDA_KERNEL_CALL:
3466       S = CUDAKernelCallExpr::CreateEmpty(
3467           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields], Empty);
3468       break;
3469 
3470     case EXPR_ASTYPE:
3471       S = new (Context) AsTypeExpr(Empty);
3472       break;
3473 
3474     case EXPR_PSEUDO_OBJECT: {
3475       unsigned numSemanticExprs = Record[ASTStmtReader::NumExprFields];
3476       S = PseudoObjectExpr::Create(Context, Empty, numSemanticExprs);
3477       break;
3478     }
3479 
3480     case EXPR_ATOMIC:
3481       S = new (Context) AtomicExpr(Empty);
3482       break;
3483 
3484     case EXPR_LAMBDA: {
3485       unsigned NumCaptures = Record[ASTStmtReader::NumExprFields];
3486       S = LambdaExpr::CreateDeserialized(Context, NumCaptures);
3487       break;
3488     }
3489 
3490     case STMT_COROUTINE_BODY: {
3491       unsigned NumParams = Record[ASTStmtReader::NumStmtFields];
3492       S = CoroutineBodyStmt::Create(Context, Empty, NumParams);
3493       break;
3494     }
3495 
3496     case STMT_CORETURN:
3497       S = new (Context) CoreturnStmt(Empty);
3498       break;
3499 
3500     case EXPR_COAWAIT:
3501       S = new (Context) CoawaitExpr(Empty);
3502       break;
3503 
3504     case EXPR_COYIELD:
3505       S = new (Context) CoyieldExpr(Empty);
3506       break;
3507 
3508     case EXPR_DEPENDENT_COAWAIT:
3509       S = new (Context) DependentCoawaitExpr(Empty);
3510       break;
3511 
3512     case EXPR_CONCEPT_SPECIALIZATION:
3513       unsigned numTemplateArgs = Record[ASTStmtReader::NumExprFields];
3514       S = ConceptSpecializationExpr::Create(Context, Empty, numTemplateArgs);
3515       break;
3516 
3517     }
3518 
3519     // We hit a STMT_STOP, so we're done with this expression.
3520     if (Finished)
3521       break;
3522 
3523     ++NumStatementsRead;
3524 
3525     if (S && !IsStmtReference) {
3526       Reader.Visit(S);
3527       StmtEntries[Cursor.GetCurrentBitNo()] = S;
3528     }
3529 
3530     assert(Record.getIdx() == Record.size() &&
3531            "Invalid deserialization of statement");
3532     StmtStack.push_back(S);
3533   }
3534 Done:
3535   assert(StmtStack.size() > PrevNumStmts && "Read too many sub-stmts!");
3536   assert(StmtStack.size() == PrevNumStmts + 1 && "Extra expressions on stack!");
3537   return StmtStack.pop_back_val();
3538 }
3539