clang/lib/Serialization/ASTReaderStmt.cpp

   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/AST/ASTConcept.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/DependenceFlags.h"
  25 #include "clang/AST/Expr.h"
  26 #include "clang/AST/ExprCXX.h"
  27 #include "clang/AST/ExprObjC.h"
  28 #include "clang/AST/ExprOpenMP.h"
  29 #include "clang/AST/NestedNameSpecifier.h"
  30 #include "clang/AST/OpenMPClause.h"
  31 #include "clang/AST/OperationKinds.h"
  32 #include "clang/AST/Stmt.h"
  33 #include "clang/AST/StmtCXX.h"
  34 #include "clang/AST/StmtObjC.h"
  35 #include "clang/AST/StmtOpenMP.h"
  36 #include "clang/AST/StmtVisitor.h"
  37 #include "clang/AST/TemplateBase.h"
  38 #include "clang/AST/Type.h"
  39 #include "clang/AST/UnresolvedSet.h"
  40 #include "clang/Basic/CapturedStmt.h"
  41 #include "clang/Basic/ExpressionTraits.h"
  42 #include "clang/Basic/LLVM.h"
  43 #include "clang/Basic/Lambda.h"
  44 #include "clang/Basic/LangOptions.h"
  45 #include "clang/Basic/OpenMPKinds.h"
  46 #include "clang/Basic/OperatorKinds.h"
  47 #include "clang/Basic/SourceLocation.h"
  48 #include "clang/Basic/Specifiers.h"
  49 #include "clang/Basic/TypeTraits.h"
  50 #include "clang/Lex/Token.h"
  51 #include "clang/Serialization/ASTBitCodes.h"
  52 #include "clang/Serialization/ASTRecordReader.h"
  53 #include "llvm/ADT/BitmaskEnum.h"
  54 #include "llvm/ADT/DenseMap.h"
  55 #include "llvm/ADT/SmallString.h"
  56 #include "llvm/ADT/SmallVector.h"
  57 #include "llvm/ADT/StringRef.h"
  58 #include "llvm/Bitstream/BitstreamReader.h"
  59 #include "llvm/Support/Casting.h"
  60 #include "llvm/Support/ErrorHandling.h"
  61 #include <algorithm>
  62 #include <cassert>
  63 #include <cstdint>
  64 #include <optional>
  65 #include <string>
  66
  67 using namespace clang;
  68 using namespace serialization;
  69
  70 namespace clang {
  71
  72   class ASTStmtReader : public StmtVisitor<ASTStmtReader> {
  73     ASTRecordReader &Record;
  74     llvm::BitstreamCursor &DeclsCursor;
  75
  76     SourceLocation readSourceLocation() {
  77       return Record.readSourceLocation();
  78     }
  79
  80     SourceRange readSourceRange() {
  81       return Record.readSourceRange();
  82     }
  83
  84     std::string readString() {
  85       return Record.readString();
  86     }
  87
  88     TypeSourceInfo *readTypeSourceInfo() {
  89       return Record.readTypeSourceInfo();
  90     }
  91
  92     Decl *readDecl() {
  93       return Record.readDecl();
  94     }
  95
  96     template<typename T>
  97     T *readDeclAs() {
  98       return Record.readDeclAs<T>();
  99     }
 100
 101   public:
 102     ASTStmtReader(ASTRecordReader &Record, llvm::BitstreamCursor &Cursor)
 103         : Record(Record), DeclsCursor(Cursor) {}
 104
 105     /// The number of record fields required for the Stmt class
 106     /// itself.
 107     static const unsigned NumStmtFields = 0;
 108
 109     /// The number of record fields required for the Expr class
 110     /// itself.
 111     static const unsigned NumExprFields = NumStmtFields + 4;
 112
 113     /// Read and initialize a ExplicitTemplateArgumentList structure.
 114     void ReadTemplateKWAndArgsInfo(ASTTemplateKWAndArgsInfo &Args,
 115                                    TemplateArgumentLoc *ArgsLocArray,
 116                                    unsigned NumTemplateArgs);
 117
 118     void VisitStmt(Stmt *S);
 119 #define STMT(Type, Base) \
 120     void Visit##Type(Type *);
 121 #include "clang/AST/StmtNodes.inc"
 122   };
 123
 124 } // namespace clang
 125
 126 void ASTStmtReader::ReadTemplateKWAndArgsInfo(ASTTemplateKWAndArgsInfo &Args,
 127                                               TemplateArgumentLoc *ArgsLocArray,
 128                                               unsigned NumTemplateArgs) {
 129   SourceLocation TemplateKWLoc = readSourceLocation();
 130   TemplateArgumentListInfo ArgInfo;
 131   ArgInfo.setLAngleLoc(readSourceLocation());
 132   ArgInfo.setRAngleLoc(readSourceLocation());
 133   for (unsigned i = 0; i != NumTemplateArgs; ++i)
 134     ArgInfo.addArgument(Record.readTemplateArgumentLoc());
 135   Args.initializeFrom(TemplateKWLoc, ArgInfo, ArgsLocArray);
 136 }
 137
 138 void ASTStmtReader::VisitStmt(Stmt *S) {
 139   assert(Record.getIdx() == NumStmtFields && "Incorrect statement field count");
 140 }
 141
 142 void ASTStmtReader::VisitNullStmt(NullStmt *S) {
 143   VisitStmt(S);
 144   S->setSemiLoc(readSourceLocation());
 145   S->NullStmtBits.HasLeadingEmptyMacro = Record.readInt();
 146 }
 147
 148 void ASTStmtReader::VisitCompoundStmt(CompoundStmt *S) {
 149   VisitStmt(S);
 150   SmallVector<Stmt *, 16> Stmts;
 151   unsigned NumStmts = Record.readInt();
 152   unsigned HasFPFeatures = Record.readInt();
 153   assert(S->hasStoredFPFeatures() == HasFPFeatures);
 154   while (NumStmts--)
 155     Stmts.push_back(Record.readSubStmt());
 156   S->setStmts(Stmts);
 157   if (HasFPFeatures)
 158     S->setStoredFPFeatures(
 159         FPOptionsOverride::getFromOpaqueInt(Record.readInt()));
 160   S->LBraceLoc = readSourceLocation();
 161   S->RBraceLoc = readSourceLocation();
 162 }
 163
 164 void ASTStmtReader::VisitSwitchCase(SwitchCase *S) {
 165   VisitStmt(S);
 166   Record.recordSwitchCaseID(S, Record.readInt());
 167   S->setKeywordLoc(readSourceLocation());
 168   S->setColonLoc(readSourceLocation());
 169 }
 170
 171 void ASTStmtReader::VisitCaseStmt(CaseStmt *S) {
 172   VisitSwitchCase(S);
 173   bool CaseStmtIsGNURange = Record.readInt();
 174   S->setLHS(Record.readSubExpr());
 175   S->setSubStmt(Record.readSubStmt());
 176   if (CaseStmtIsGNURange) {
 177     S->setRHS(Record.readSubExpr());
 178     S->setEllipsisLoc(readSourceLocation());
 179   }
 180 }
 181
 182 void ASTStmtReader::VisitDefaultStmt(DefaultStmt *S) {
 183   VisitSwitchCase(S);
 184   S->setSubStmt(Record.readSubStmt());
 185 }
 186
 187 void ASTStmtReader::VisitLabelStmt(LabelStmt *S) {
 188   VisitStmt(S);
 189   bool IsSideEntry = Record.readInt();
 190   auto *LD = readDeclAs<LabelDecl>();
 191   LD->setStmt(S);
 192   S->setDecl(LD);
 193   S->setSubStmt(Record.readSubStmt());
 194   S->setIdentLoc(readSourceLocation());
 195   S->setSideEntry(IsSideEntry);
 196 }
 197
 198 void ASTStmtReader::VisitAttributedStmt(AttributedStmt *S) {
 199   VisitStmt(S);
 200   // NumAttrs in AttributedStmt is set when creating an empty
 201   // AttributedStmt in AttributedStmt::CreateEmpty, since it is needed
 202   // to allocate the right amount of space for the trailing Attr *.
 203   uint64_t NumAttrs = Record.readInt();
 204   AttrVec Attrs;
 205   Record.readAttributes(Attrs);
 206   (void)NumAttrs;
 207   assert(NumAttrs == S->AttributedStmtBits.NumAttrs);
 208   assert(NumAttrs == Attrs.size());
 209   std::copy(Attrs.begin(), Attrs.end(), S->getAttrArrayPtr());
 210   S->SubStmt = Record.readSubStmt();
 211   S->AttributedStmtBits.AttrLoc = readSourceLocation();
 212 }
 213
 214 void ASTStmtReader::VisitIfStmt(IfStmt *S) {
 215   VisitStmt(S);
 216
 217   bool HasElse = Record.readInt();
 218   bool HasVar = Record.readInt();
 219   bool HasInit = Record.readInt();
 220
 221   S->setStatementKind(static_cast<IfStatementKind>(Record.readInt()));
 222   S->setCond(Record.readSubExpr());
 223   S->setThen(Record.readSubStmt());
 224   if (HasElse)
 225     S->setElse(Record.readSubStmt());
 226   if (HasVar)
 227     S->setConditionVariableDeclStmt(cast<DeclStmt>(Record.readSubStmt()));
 228   if (HasInit)
 229     S->setInit(Record.readSubStmt());
 230
 231   S->setIfLoc(readSourceLocation());
 232   S->setLParenLoc(readSourceLocation());
 233   S->setRParenLoc(readSourceLocation());
 234   if (HasElse)
 235     S->setElseLoc(readSourceLocation());
 236 }
 237
 238 void ASTStmtReader::VisitSwitchStmt(SwitchStmt *S) {
 239   VisitStmt(S);
 240
 241   bool HasInit = Record.readInt();
 242   bool HasVar = Record.readInt();
 243   bool AllEnumCasesCovered = Record.readInt();
 244   if (AllEnumCasesCovered)
 245     S->setAllEnumCasesCovered();
 246
 247   S->setCond(Record.readSubExpr());
 248   S->setBody(Record.readSubStmt());
 249   if (HasInit)
 250     S->setInit(Record.readSubStmt());
 251   if (HasVar)
 252     S->setConditionVariableDeclStmt(cast<DeclStmt>(Record.readSubStmt()));
 253
 254   S->setSwitchLoc(readSourceLocation());
 255   S->setLParenLoc(readSourceLocation());
 256   S->setRParenLoc(readSourceLocation());
 257
 258   SwitchCase *PrevSC = nullptr;
 259   for (auto E = Record.size(); Record.getIdx() != E; ) {
 260     SwitchCase *SC = Record.getSwitchCaseWithID(Record.readInt());
 261     if (PrevSC)
 262       PrevSC->setNextSwitchCase(SC);
 263     else
 264       S->setSwitchCaseList(SC);
 265
 266     PrevSC = SC;
 267   }
 268 }
 269
 270 void ASTStmtReader::VisitWhileStmt(WhileStmt *S) {
 271   VisitStmt(S);
 272
 273   bool HasVar = Record.readInt();
 274
 275   S->setCond(Record.readSubExpr());
 276   S->setBody(Record.readSubStmt());
 277   if (HasVar)
 278     S->setConditionVariableDeclStmt(cast<DeclStmt>(Record.readSubStmt()));
 279
 280   S->setWhileLoc(readSourceLocation());
 281   S->setLParenLoc(readSourceLocation());
 282   S->setRParenLoc(readSourceLocation());
 283 }
 284
 285 void ASTStmtReader::VisitDoStmt(DoStmt *S) {
 286   VisitStmt(S);
 287   S->setCond(Record.readSubExpr());
 288   S->setBody(Record.readSubStmt());
 289   S->setDoLoc(readSourceLocation());
 290   S->setWhileLoc(readSourceLocation());
 291   S->setRParenLoc(readSourceLocation());
 292 }
 293
 294 void ASTStmtReader::VisitForStmt(ForStmt *S) {
 295   VisitStmt(S);
 296   S->setInit(Record.readSubStmt());
 297   S->setCond(Record.readSubExpr());
 298   S->setConditionVariableDeclStmt(cast_or_null<DeclStmt>(Record.readSubStmt()));
 299   S->setInc(Record.readSubExpr());
 300   S->setBody(Record.readSubStmt());
 301   S->setForLoc(readSourceLocation());
 302   S->setLParenLoc(readSourceLocation());
 303   S->setRParenLoc(readSourceLocation());
 304 }
 305
 306 void ASTStmtReader::VisitGotoStmt(GotoStmt *S) {
 307   VisitStmt(S);
 308   S->setLabel(readDeclAs<LabelDecl>());
 309   S->setGotoLoc(readSourceLocation());
 310   S->setLabelLoc(readSourceLocation());
 311 }
 312
 313 void ASTStmtReader::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
 314   VisitStmt(S);
 315   S->setGotoLoc(readSourceLocation());
 316   S->setStarLoc(readSourceLocation());
 317   S->setTarget(Record.readSubExpr());
 318 }
 319
 320 void ASTStmtReader::VisitContinueStmt(ContinueStmt *S) {
 321   VisitStmt(S);
 322   S->setContinueLoc(readSourceLocation());
 323 }
 324
 325 void ASTStmtReader::VisitBreakStmt(BreakStmt *S) {
 326   VisitStmt(S);
 327   S->setBreakLoc(readSourceLocation());
 328 }
 329
 330 void ASTStmtReader::VisitReturnStmt(ReturnStmt *S) {
 331   VisitStmt(S);
 332
 333   bool HasNRVOCandidate = Record.readInt();
 334
 335   S->setRetValue(Record.readSubExpr());
 336   if (HasNRVOCandidate)
 337     S->setNRVOCandidate(readDeclAs<VarDecl>());
 338
 339   S->setReturnLoc(readSourceLocation());
 340 }
 341
 342 void ASTStmtReader::VisitDeclStmt(DeclStmt *S) {
 343   VisitStmt(S);
 344   S->setStartLoc(readSourceLocation());
 345   S->setEndLoc(readSourceLocation());
 346
 347   if (Record.size() - Record.getIdx() == 1) {
 348     // Single declaration
 349     S->setDeclGroup(DeclGroupRef(readDecl()));
 350   } else {
 351     SmallVector<Decl *, 16> Decls;
 352     int N = Record.size() - Record.getIdx();
 353     Decls.reserve(N);
 354     for (int I = 0; I < N; ++I)
 355       Decls.push_back(readDecl());
 356     S->setDeclGroup(DeclGroupRef(DeclGroup::Create(Record.getContext(),
 357                                                    Decls.data(),
 358                                                    Decls.size())));
 359   }
 360 }
 361
 362 void ASTStmtReader::VisitAsmStmt(AsmStmt *S) {
 363   VisitStmt(S);
 364   S->NumOutputs = Record.readInt();
 365   S->NumInputs = Record.readInt();
 366   S->NumClobbers = Record.readInt();
 367   S->setAsmLoc(readSourceLocation());
 368   S->setVolatile(Record.readInt());
 369   S->setSimple(Record.readInt());
 370 }
 371
 372 void ASTStmtReader::VisitGCCAsmStmt(GCCAsmStmt *S) {
 373   VisitAsmStmt(S);
 374   S->NumLabels = Record.readInt();
 375   S->setRParenLoc(readSourceLocation());
 376   S->setAsmString(cast_or_null<StringLiteral>(Record.readSubStmt()));
 377
 378   unsigned NumOutputs = S->getNumOutputs();
 379   unsigned NumInputs = S->getNumInputs();
 380   unsigned NumClobbers = S->getNumClobbers();
 381   unsigned NumLabels = S->getNumLabels();
 382
 383   // Outputs and inputs
 384   SmallVector<IdentifierInfo *, 16> Names;
 385   SmallVector<StringLiteral*, 16> Constraints;
 386   SmallVector<Stmt*, 16> Exprs;
 387   for (unsigned I = 0, N = NumOutputs + NumInputs; I != N; ++I) {
 388     Names.push_back(Record.readIdentifier());
 389     Constraints.push_back(cast_or_null<StringLiteral>(Record.readSubStmt()));
 390     Exprs.push_back(Record.readSubStmt());
 391   }
 392
 393   // Constraints
 394   SmallVector<StringLiteral*, 16> Clobbers;
 395   for (unsigned I = 0; I != NumClobbers; ++I)
 396     Clobbers.push_back(cast_or_null<StringLiteral>(Record.readSubStmt()));
 397
 398   // Labels
 399   for (unsigned I = 0, N = NumLabels; I != N; ++I) {
 400     Names.push_back(Record.readIdentifier());
 401     Exprs.push_back(Record.readSubStmt());
 402   }
 403
 404   S->setOutputsAndInputsAndClobbers(Record.getContext(),
 405                                     Names.data(), Constraints.data(),
 406                                     Exprs.data(), NumOutputs, NumInputs,
 407                                     NumLabels,
 408                                     Clobbers.data(), NumClobbers);
 409 }
 410
 411 void ASTStmtReader::VisitMSAsmStmt(MSAsmStmt *S) {
 412   VisitAsmStmt(S);
 413   S->LBraceLoc = readSourceLocation();
 414   S->EndLoc = readSourceLocation();
 415   S->NumAsmToks = Record.readInt();
 416   std::string AsmStr = readString();
 417
 418   // Read the tokens.
 419   SmallVector<Token, 16> AsmToks;
 420   AsmToks.reserve(S->NumAsmToks);
 421   for (unsigned i = 0, e = S->NumAsmToks; i != e; ++i) {
 422     AsmToks.push_back(Record.readToken());
 423   }
 424
 425   // The calls to reserve() for the FooData vectors are mandatory to
 426   // prevent dead StringRefs in the Foo vectors.
 427
 428   // Read the clobbers.
 429   SmallVector<std::string, 16> ClobbersData;
 430   SmallVector<StringRef, 16> Clobbers;
 431   ClobbersData.reserve(S->NumClobbers);
 432   Clobbers.reserve(S->NumClobbers);
 433   for (unsigned i = 0, e = S->NumClobbers; i != e; ++i) {
 434     ClobbersData.push_back(readString());
 435     Clobbers.push_back(ClobbersData.back());
 436   }
 437
 438   // Read the operands.
 439   unsigned NumOperands = S->NumOutputs + S->NumInputs;
 440   SmallVector<Expr*, 16> Exprs;
 441   SmallVector<std::string, 16> ConstraintsData;
 442   SmallVector<StringRef, 16> Constraints;
 443   Exprs.reserve(NumOperands);
 444   ConstraintsData.reserve(NumOperands);
 445   Constraints.reserve(NumOperands);
 446   for (unsigned i = 0; i != NumOperands; ++i) {
 447     Exprs.push_back(cast<Expr>(Record.readSubStmt()));
 448     ConstraintsData.push_back(readString());
 449     Constraints.push_back(ConstraintsData.back());
 450   }
 451
 452   S->initialize(Record.getContext(), AsmStr, AsmToks,
 453                 Constraints, Exprs, Clobbers);
 454 }
 455
 456 void ASTStmtReader::VisitCoroutineBodyStmt(CoroutineBodyStmt *S) {
 457   VisitStmt(S);
 458   assert(Record.peekInt() == S->NumParams);
 459   Record.skipInts(1);
 460   auto *StoredStmts = S->getStoredStmts();
 461   for (unsigned i = 0;
 462        i < CoroutineBodyStmt::SubStmt::FirstParamMove + S->NumParams; ++i)
 463     StoredStmts[i] = Record.readSubStmt();
 464 }
 465
 466 void ASTStmtReader::VisitCoreturnStmt(CoreturnStmt *S) {
 467   VisitStmt(S);
 468   S->CoreturnLoc = Record.readSourceLocation();
 469   for (auto &SubStmt: S->SubStmts)
 470     SubStmt = Record.readSubStmt();
 471   S->IsImplicit = Record.readInt() != 0;
 472 }
 473
 474 void ASTStmtReader::VisitCoawaitExpr(CoawaitExpr *E) {
 475   VisitExpr(E);
 476   E->KeywordLoc = readSourceLocation();
 477   for (auto &SubExpr: E->SubExprs)
 478     SubExpr = Record.readSubStmt();
 479   E->OpaqueValue = cast_or_null<OpaqueValueExpr>(Record.readSubStmt());
 480   E->setIsImplicit(Record.readInt() != 0);
 481 }
 482
 483 void ASTStmtReader::VisitCoyieldExpr(CoyieldExpr *E) {
 484   VisitExpr(E);
 485   E->KeywordLoc = readSourceLocation();
 486   for (auto &SubExpr: E->SubExprs)
 487     SubExpr = Record.readSubStmt();
 488   E->OpaqueValue = cast_or_null<OpaqueValueExpr>(Record.readSubStmt());
 489 }
 490
 491 void ASTStmtReader::VisitDependentCoawaitExpr(DependentCoawaitExpr *E) {
 492   VisitExpr(E);
 493   E->KeywordLoc = readSourceLocation();
 494   for (auto &SubExpr: E->SubExprs)
 495     SubExpr = Record.readSubStmt();
 496 }
 497
 498 void ASTStmtReader::VisitCapturedStmt(CapturedStmt *S) {
 499   VisitStmt(S);
 500   Record.skipInts(1);
 501   S->setCapturedDecl(readDeclAs<CapturedDecl>());
 502   S->setCapturedRegionKind(static_cast<CapturedRegionKind>(Record.readInt()));
 503   S->setCapturedRecordDecl(readDeclAs<RecordDecl>());
 504
 505   // Capture inits
 506   for (CapturedStmt::capture_init_iterator I = S->capture_init_begin(),
 507                                            E = S->capture_init_end();
 508        I != E; ++I)
 509     *I = Record.readSubExpr();
 510
 511   // Body
 512   S->setCapturedStmt(Record.readSubStmt());
 513   S->getCapturedDecl()->setBody(S->getCapturedStmt());
 514
 515   // Captures
 516   for (auto &I : S->captures()) {
 517     I.VarAndKind.setPointer(readDeclAs<VarDecl>());
 518     I.VarAndKind.setInt(
 519         static_cast<CapturedStmt::VariableCaptureKind>(Record.readInt()));
 520     I.Loc = readSourceLocation();
 521   }
 522 }
 523
 524 void ASTStmtReader::VisitExpr(Expr *E) {
 525   VisitStmt(E);
 526   E->setType(Record.readType());
 527   E->setDependence(static_cast<ExprDependence>(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
 537   auto StorageKind = Record.readInt();
 538   assert(E->ConstantExprBits.ResultKind == StorageKind && "Wrong ResultKind!");
 539
 540   E->ConstantExprBits.APValueKind = Record.readInt();
 541   E->ConstantExprBits.IsUnsigned = Record.readInt();
 542   E->ConstantExprBits.BitWidth = Record.readInt();
 543   E->ConstantExprBits.HasCleanup = false; // Not serialized, see below.
 544   E->ConstantExprBits.IsImmediateInvocation = Record.readInt();
 545
 546   switch (StorageKind) {
 547   case ConstantExpr::RSK_None:
 548     break;
 549
 550   case ConstantExpr::RSK_Int64:
 551     E->Int64Result() = Record.readInt();
 552     break;
 553
 554   case ConstantExpr::RSK_APValue:
 555     E->APValueResult() = Record.readAPValue();
 556     if (E->APValueResult().needsCleanup()) {
 557       E->ConstantExprBits.HasCleanup = true;
 558       Record.getContext().addDestruction(&E->APValueResult());
 559     }
 560     break;
 561   default:
 562     llvm_unreachable("unexpected ResultKind!");
 563   }
 564
 565   E->setSubExpr(Record.readSubExpr());
 566 }
 567
 568 void ASTStmtReader::VisitSYCLUniqueStableNameExpr(SYCLUniqueStableNameExpr *E) {
 569   VisitExpr(E);
 570
 571   E->setLocation(readSourceLocation());
 572   E->setLParenLocation(readSourceLocation());
 573   E->setRParenLocation(readSourceLocation());
 574
 575   E->setTypeSourceInfo(Record.readTypeSourceInfo());
 576 }
 577
 578 void ASTStmtReader::VisitPredefinedExpr(PredefinedExpr *E) {
 579   VisitExpr(E);
 580   bool HasFunctionName = Record.readInt();
 581   E->PredefinedExprBits.HasFunctionName = HasFunctionName;
 582   E->PredefinedExprBits.Kind = Record.readInt();
 583   E->PredefinedExprBits.IsTransparent = Record.readInt();
 584   E->setLocation(readSourceLocation());
 585   if (HasFunctionName)
 586     E->setFunctionName(cast<StringLiteral>(Record.readSubExpr()));
 587 }
 588
 589 void ASTStmtReader::VisitDeclRefExpr(DeclRefExpr *E) {
 590   VisitExpr(E);
 591
 592   E->DeclRefExprBits.HasQualifier = Record.readInt();
 593   E->DeclRefExprBits.HasFoundDecl = Record.readInt();
 594   E->DeclRefExprBits.HasTemplateKWAndArgsInfo = Record.readInt();
 595   E->DeclRefExprBits.HadMultipleCandidates = Record.readInt();
 596   E->DeclRefExprBits.RefersToEnclosingVariableOrCapture = Record.readInt();
 597   E->DeclRefExprBits.NonOdrUseReason = Record.readInt();
 598   E->DeclRefExprBits.IsImmediateEscalating = Record.readInt();
 599   unsigned NumTemplateArgs = 0;
 600   if (E->hasTemplateKWAndArgsInfo())
 601     NumTemplateArgs = Record.readInt();
 602
 603   if (E->hasQualifier())
 604     new (E->getTrailingObjects<NestedNameSpecifierLoc>())
 605         NestedNameSpecifierLoc(Record.readNestedNameSpecifierLoc());
 606
 607   if (E->hasFoundDecl())
 608     *E->getTrailingObjects<NamedDecl *>() = readDeclAs<NamedDecl>();
 609
 610   if (E->hasTemplateKWAndArgsInfo())
 611     ReadTemplateKWAndArgsInfo(
 612         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
 613         E->getTrailingObjects<TemplateArgumentLoc>(), NumTemplateArgs);
 614
 615   E->D = readDeclAs<ValueDecl>();
 616   E->setLocation(readSourceLocation());
 617   E->DNLoc = Record.readDeclarationNameLoc(E->getDecl()->getDeclName());
 618 }
 619
 620 void ASTStmtReader::VisitIntegerLiteral(IntegerLiteral *E) {
 621   VisitExpr(E);
 622   E->setLocation(readSourceLocation());
 623   E->setValue(Record.getContext(), Record.readAPInt());
 624 }
 625
 626 void ASTStmtReader::VisitFixedPointLiteral(FixedPointLiteral *E) {
 627   VisitExpr(E);
 628   E->setLocation(readSourceLocation());
 629   E->setScale(Record.readInt());
 630   E->setValue(Record.getContext(), Record.readAPInt());
 631 }
 632
 633 void ASTStmtReader::VisitFloatingLiteral(FloatingLiteral *E) {
 634   VisitExpr(E);
 635   E->setRawSemantics(
 636       static_cast<llvm::APFloatBase::Semantics>(Record.readInt()));
 637   E->setExact(Record.readInt());
 638   E->setValue(Record.getContext(), Record.readAPFloat(E->getSemantics()));
 639   E->setLocation(readSourceLocation());
 640 }
 641
 642 void ASTStmtReader::VisitImaginaryLiteral(ImaginaryLiteral *E) {
 643   VisitExpr(E);
 644   E->setSubExpr(Record.readSubExpr());
 645 }
 646
 647 void ASTStmtReader::VisitStringLiteral(StringLiteral *E) {
 648   VisitExpr(E);
 649
 650   // NumConcatenated, Length and CharByteWidth are set by the empty
 651   // ctor since they are needed to allocate storage for the trailing objects.
 652   unsigned NumConcatenated = Record.readInt();
 653   unsigned Length = Record.readInt();
 654   unsigned CharByteWidth = Record.readInt();
 655   assert((NumConcatenated == E->getNumConcatenated()) &&
 656          "Wrong number of concatenated tokens!");
 657   assert((Length == E->getLength()) && "Wrong Length!");
 658   assert((CharByteWidth == E->getCharByteWidth()) && "Wrong character width!");
 659   E->StringLiteralBits.Kind = Record.readInt();
 660   E->StringLiteralBits.IsPascal = Record.readInt();
 661
 662   // The character width is originally computed via mapCharByteWidth.
 663   // Check that the deserialized character width is consistant with the result
 664   // of calling mapCharByteWidth.
 665   assert((CharByteWidth ==
 666           StringLiteral::mapCharByteWidth(Record.getContext().getTargetInfo(),
 667                                           E->getKind())) &&
 668          "Wrong character width!");
 669
 670   // Deserialize the trailing array of SourceLocation.
 671   for (unsigned I = 0; I < NumConcatenated; ++I)
 672     E->setStrTokenLoc(I, readSourceLocation());
 673
 674   // Deserialize the trailing array of char holding the string data.
 675   char *StrData = E->getStrDataAsChar();
 676   for (unsigned I = 0; I < Length * CharByteWidth; ++I)
 677     StrData[I] = Record.readInt();
 678 }
 679
 680 void ASTStmtReader::VisitCharacterLiteral(CharacterLiteral *E) {
 681   VisitExpr(E);
 682   E->setValue(Record.readInt());
 683   E->setLocation(readSourceLocation());
 684   E->setKind(static_cast<CharacterLiteral::CharacterKind>(Record.readInt()));
 685 }
 686
 687 void ASTStmtReader::VisitParenExpr(ParenExpr *E) {
 688   VisitExpr(E);
 689   E->setLParen(readSourceLocation());
 690   E->setRParen(readSourceLocation());
 691   E->setSubExpr(Record.readSubExpr());
 692 }
 693
 694 void ASTStmtReader::VisitParenListExpr(ParenListExpr *E) {
 695   VisitExpr(E);
 696   unsigned NumExprs = Record.readInt();
 697   assert((NumExprs == E->getNumExprs()) && "Wrong NumExprs!");
 698   for (unsigned I = 0; I != NumExprs; ++I)
 699     E->getTrailingObjects<Stmt *>()[I] = Record.readSubStmt();
 700   E->LParenLoc = readSourceLocation();
 701   E->RParenLoc = readSourceLocation();
 702 }
 703
 704 void ASTStmtReader::VisitUnaryOperator(UnaryOperator *E) {
 705   VisitExpr(E);
 706   bool hasFP_Features = Record.readInt();
 707   assert(hasFP_Features == E->hasStoredFPFeatures());
 708   E->setSubExpr(Record.readSubExpr());
 709   E->setOpcode((UnaryOperator::Opcode)Record.readInt());
 710   E->setOperatorLoc(readSourceLocation());
 711   E->setCanOverflow(Record.readInt());
 712   if (hasFP_Features)
 713     E->setStoredFPFeatures(
 714         FPOptionsOverride::getFromOpaqueInt(Record.readInt()));
 715 }
 716
 717 void ASTStmtReader::VisitOffsetOfExpr(OffsetOfExpr *E) {
 718   VisitExpr(E);
 719   assert(E->getNumComponents() == Record.peekInt());
 720   Record.skipInts(1);
 721   assert(E->getNumExpressions() == Record.peekInt());
 722   Record.skipInts(1);
 723   E->setOperatorLoc(readSourceLocation());
 724   E->setRParenLoc(readSourceLocation());
 725   E->setTypeSourceInfo(readTypeSourceInfo());
 726   for (unsigned I = 0, N = E->getNumComponents(); I != N; ++I) {
 727     auto Kind = static_cast<OffsetOfNode::Kind>(Record.readInt());
 728     SourceLocation Start = readSourceLocation();
 729     SourceLocation End = readSourceLocation();
 730     switch (Kind) {
 731     case OffsetOfNode::Array:
 732       E->setComponent(I, OffsetOfNode(Start, Record.readInt(), End));
 733       break;
 734
 735     case OffsetOfNode::Field:
 736       E->setComponent(
 737           I, OffsetOfNode(Start, readDeclAs<FieldDecl>(), End));
 738       break;
 739
 740     case OffsetOfNode::Identifier:
 741       E->setComponent(
 742           I,
 743           OffsetOfNode(Start, Record.readIdentifier(), End));
 744       break;
 745
 746     case OffsetOfNode::Base: {
 747       auto *Base = new (Record.getContext()) CXXBaseSpecifier();
 748       *Base = Record.readCXXBaseSpecifier();
 749       E->setComponent(I, OffsetOfNode(Base));
 750       break;
 751     }
 752     }
 753   }
 754
 755   for (unsigned I = 0, N = E->getNumExpressions(); I != N; ++I)
 756     E->setIndexExpr(I, Record.readSubExpr());
 757 }
 758
 759 void ASTStmtReader::VisitUnaryExprOrTypeTraitExpr(UnaryExprOrTypeTraitExpr *E) {
 760   VisitExpr(E);
 761   E->setKind(static_cast<UnaryExprOrTypeTrait>(Record.readInt()));
 762   if (Record.peekInt() == 0) {
 763     E->setArgument(Record.readSubExpr());
 764     Record.skipInts(1);
 765   } else {
 766     E->setArgument(readTypeSourceInfo());
 767   }
 768   E->setOperatorLoc(readSourceLocation());
 769   E->setRParenLoc(readSourceLocation());
 770 }
 771
 772 static ConstraintSatisfaction
 773 readConstraintSatisfaction(ASTRecordReader &Record) {
 774   ConstraintSatisfaction Satisfaction;
 775   Satisfaction.IsSatisfied = Record.readInt();
 776   Satisfaction.ContainsErrors = Record.readInt();
 777   if (!Satisfaction.IsSatisfied) {
 778     unsigned NumDetailRecords = Record.readInt();
 779     for (unsigned i = 0; i != NumDetailRecords; ++i) {
 780       Expr *ConstraintExpr = Record.readExpr();
 781       if (/* IsDiagnostic */Record.readInt()) {
 782         SourceLocation DiagLocation = Record.readSourceLocation();
 783         std::string DiagMessage = Record.readString();
 784         Satisfaction.Details.emplace_back(
 785             ConstraintExpr, new (Record.getContext())
 786                                 ConstraintSatisfaction::SubstitutionDiagnostic{
 787                                     DiagLocation, DiagMessage});
 788       } else
 789         Satisfaction.Details.emplace_back(ConstraintExpr, Record.readExpr());
 790     }
 791   }
 792   return Satisfaction;
 793 }
 794
 795 void ASTStmtReader::VisitConceptSpecializationExpr(
 796         ConceptSpecializationExpr *E) {
 797   VisitExpr(E);
 798   E->NestedNameSpec = Record.readNestedNameSpecifierLoc();
 799   E->TemplateKWLoc = Record.readSourceLocation();
 800   E->ConceptName = Record.readDeclarationNameInfo();
 801   E->NamedConcept = readDeclAs<ConceptDecl>();
 802   E->FoundDecl = Record.readDeclAs<NamedDecl>();
 803   E->SpecDecl = Record.readDeclAs<ImplicitConceptSpecializationDecl>();
 804   E->ArgsAsWritten = Record.readASTTemplateArgumentListInfo();
 805   E->Satisfaction = E->isValueDependent() ? nullptr :
 806       ASTConstraintSatisfaction::Create(Record.getContext(),
 807                                         readConstraintSatisfaction(Record));
 808 }
 809
 810 static concepts::Requirement::SubstitutionDiagnostic *
 811 readSubstitutionDiagnostic(ASTRecordReader &Record) {
 812   std::string SubstitutedEntity = Record.readString();
 813   SourceLocation DiagLoc = Record.readSourceLocation();
 814   std::string DiagMessage = Record.readString();
 815   return new (Record.getContext())
 816       concepts::Requirement::SubstitutionDiagnostic{SubstitutedEntity, DiagLoc,
 817                                                     DiagMessage};
 818 }
 819
 820 void ASTStmtReader::VisitRequiresExpr(RequiresExpr *E) {
 821   VisitExpr(E);
 822   unsigned NumLocalParameters = Record.readInt();
 823   unsigned NumRequirements = Record.readInt();
 824   E->RequiresExprBits.RequiresKWLoc = Record.readSourceLocation();
 825   E->RequiresExprBits.IsSatisfied = Record.readInt();
 826   E->Body = Record.readDeclAs<RequiresExprBodyDecl>();
 827   llvm::SmallVector<ParmVarDecl *, 4> LocalParameters;
 828   for (unsigned i = 0; i < NumLocalParameters; ++i)
 829     LocalParameters.push_back(cast<ParmVarDecl>(Record.readDecl()));
 830   std::copy(LocalParameters.begin(), LocalParameters.end(),
 831             E->getTrailingObjects<ParmVarDecl *>());
 832   llvm::SmallVector<concepts::Requirement *, 4> Requirements;
 833   for (unsigned i = 0; i < NumRequirements; ++i) {
 834     auto RK =
 835         static_cast<concepts::Requirement::RequirementKind>(Record.readInt());
 836     concepts::Requirement *R = nullptr;
 837     switch (RK) {
 838       case concepts::Requirement::RK_Type: {
 839         auto Status =
 840             static_cast<concepts::TypeRequirement::SatisfactionStatus>(
 841                 Record.readInt());
 842         if (Status == concepts::TypeRequirement::SS_SubstitutionFailure)
 843           R = new (Record.getContext())
 844               concepts::TypeRequirement(readSubstitutionDiagnostic(Record));
 845         else
 846           R = new (Record.getContext())
 847               concepts::TypeRequirement(Record.readTypeSourceInfo());
 848       } break;
 849       case concepts::Requirement::RK_Simple:
 850       case concepts::Requirement::RK_Compound: {
 851         auto Status =
 852             static_cast<concepts::ExprRequirement::SatisfactionStatus>(
 853                 Record.readInt());
 854         llvm::PointerUnion<concepts::Requirement::SubstitutionDiagnostic *,
 855                            Expr *> E;
 856         if (Status == concepts::ExprRequirement::SS_ExprSubstitutionFailure) {
 857           E = readSubstitutionDiagnostic(Record);
 858         } else
 859           E = Record.readExpr();
 860
 861         std::optional<concepts::ExprRequirement::ReturnTypeRequirement> Req;
 862         ConceptSpecializationExpr *SubstitutedConstraintExpr = nullptr;
 863         SourceLocation NoexceptLoc;
 864         if (RK == concepts::Requirement::RK_Simple) {
 865           Req.emplace();
 866         } else {
 867           NoexceptLoc = Record.readSourceLocation();
 868           switch (/* returnTypeRequirementKind */Record.readInt()) {
 869             case 0:
 870               // No return type requirement.
 871               Req.emplace();
 872               break;
 873             case 1: {
 874               // type-constraint
 875               TemplateParameterList *TPL = Record.readTemplateParameterList();
 876               if (Status >=
 877                   concepts::ExprRequirement::SS_ConstraintsNotSatisfied)
 878                 SubstitutedConstraintExpr =
 879                     cast<ConceptSpecializationExpr>(Record.readExpr());
 880               Req.emplace(TPL);
 881             } break;
 882             case 2:
 883               // Substitution failure
 884               Req.emplace(readSubstitutionDiagnostic(Record));
 885               break;
 886           }
 887         }
 888         if (Expr *Ex = E.dyn_cast<Expr *>())
 889           R = new (Record.getContext()) concepts::ExprRequirement(
 890                   Ex, RK == concepts::Requirement::RK_Simple, NoexceptLoc,
 891                   std::move(*Req), Status, SubstitutedConstraintExpr);
 892         else
 893           R = new (Record.getContext()) concepts::ExprRequirement(
 894                   E.get<concepts::Requirement::SubstitutionDiagnostic *>(),
 895                   RK == concepts::Requirement::RK_Simple, NoexceptLoc,
 896                   std::move(*Req));
 897       } break;
 898       case concepts::Requirement::RK_Nested: {
 899         bool HasInvalidConstraint = Record.readInt();
 900         if (HasInvalidConstraint) {
 901           std::string InvalidConstraint = Record.readString();
 902           char *InvalidConstraintBuf =
 903               new (Record.getContext()) char[InvalidConstraint.size()];
 904           std::copy(InvalidConstraint.begin(), InvalidConstraint.end(),
 905                     InvalidConstraintBuf);
 906           R = new (Record.getContext()) concepts::NestedRequirement(
 907               Record.getContext(),
 908               StringRef(InvalidConstraintBuf, InvalidConstraint.size()),
 909               readConstraintSatisfaction(Record));
 910           break;
 911         }
 912         Expr *E = Record.readExpr();
 913         if (E->isInstantiationDependent())
 914           R = new (Record.getContext()) concepts::NestedRequirement(E);
 915         else
 916           R = new (Record.getContext())
 917               concepts::NestedRequirement(Record.getContext(), E,
 918                                           readConstraintSatisfaction(Record));
 919       } break;
 920     }
 921     if (!R)
 922       continue;
 923     Requirements.push_back(R);
 924   }
 925   std::copy(Requirements.begin(), Requirements.end(),
 926             E->getTrailingObjects<concepts::Requirement *>());
 927   E->RBraceLoc = Record.readSourceLocation();
 928 }
 929
 930 void ASTStmtReader::VisitArraySubscriptExpr(ArraySubscriptExpr *E) {
 931   VisitExpr(E);
 932   E->setLHS(Record.readSubExpr());
 933   E->setRHS(Record.readSubExpr());
 934   E->setRBracketLoc(readSourceLocation());
 935 }
 936
 937 void ASTStmtReader::VisitMatrixSubscriptExpr(MatrixSubscriptExpr *E) {
 938   VisitExpr(E);
 939   E->setBase(Record.readSubExpr());
 940   E->setRowIdx(Record.readSubExpr());
 941   E->setColumnIdx(Record.readSubExpr());
 942   E->setRBracketLoc(readSourceLocation());
 943 }
 944
 945 void ASTStmtReader::VisitOMPArraySectionExpr(OMPArraySectionExpr *E) {
 946   VisitExpr(E);
 947   E->setBase(Record.readSubExpr());
 948   E->setLowerBound(Record.readSubExpr());
 949   E->setLength(Record.readSubExpr());
 950   E->setStride(Record.readSubExpr());
 951   E->setColonLocFirst(readSourceLocation());
 952   E->setColonLocSecond(readSourceLocation());
 953   E->setRBracketLoc(readSourceLocation());
 954 }
 955
 956 void ASTStmtReader::VisitOMPArrayShapingExpr(OMPArrayShapingExpr *E) {
 957   VisitExpr(E);
 958   unsigned NumDims = Record.readInt();
 959   E->setBase(Record.readSubExpr());
 960   SmallVector<Expr *, 4> Dims(NumDims);
 961   for (unsigned I = 0; I < NumDims; ++I)
 962     Dims[I] = Record.readSubExpr();
 963   E->setDimensions(Dims);
 964   SmallVector<SourceRange, 4> SRs(NumDims);
 965   for (unsigned I = 0; I < NumDims; ++I)
 966     SRs[I] = readSourceRange();
 967   E->setBracketsRanges(SRs);
 968   E->setLParenLoc(readSourceLocation());
 969   E->setRParenLoc(readSourceLocation());
 970 }
 971
 972 void ASTStmtReader::VisitOMPIteratorExpr(OMPIteratorExpr *E) {
 973   VisitExpr(E);
 974   unsigned NumIters = Record.readInt();
 975   E->setIteratorKwLoc(readSourceLocation());
 976   E->setLParenLoc(readSourceLocation());
 977   E->setRParenLoc(readSourceLocation());
 978   for (unsigned I = 0; I < NumIters; ++I) {
 979     E->setIteratorDeclaration(I, Record.readDeclRef());
 980     E->setAssignmentLoc(I, readSourceLocation());
 981     Expr *Begin = Record.readSubExpr();
 982     Expr *End = Record.readSubExpr();
 983     Expr *Step = Record.readSubExpr();
 984     SourceLocation ColonLoc = readSourceLocation();
 985     SourceLocation SecColonLoc;
 986     if (Step)
 987       SecColonLoc = readSourceLocation();
 988     E->setIteratorRange(I, Begin, ColonLoc, End, SecColonLoc, Step);
 989     // Deserialize helpers
 990     OMPIteratorHelperData HD;
 991     HD.CounterVD = cast_or_null<VarDecl>(Record.readDeclRef());
 992     HD.Upper = Record.readSubExpr();
 993     HD.Update = Record.readSubExpr();
 994     HD.CounterUpdate = Record.readSubExpr();
 995     E->setHelper(I, HD);
 996   }
 997 }
 998
 999 void ASTStmtReader::VisitCallExpr(CallExpr *E) {
1000   VisitExpr(E);
1001   unsigned NumArgs = Record.readInt();
1002   bool HasFPFeatures = Record.readInt();
1003   assert((NumArgs == E->getNumArgs()) && "Wrong NumArgs!");
1004   E->setRParenLoc(readSourceLocation());
1005   E->setCallee(Record.readSubExpr());
1006   for (unsigned I = 0; I != NumArgs; ++I)
1007     E->setArg(I, Record.readSubExpr());
1008   E->setADLCallKind(static_cast<CallExpr::ADLCallKind>(Record.readInt()));
1009   if (HasFPFeatures)
1010     E->setStoredFPFeatures(
1011         FPOptionsOverride::getFromOpaqueInt(Record.readInt()));
1012 }
1013
1014 void ASTStmtReader::VisitCXXMemberCallExpr(CXXMemberCallExpr *E) {
1015   VisitCallExpr(E);
1016 }
1017
1018 void ASTStmtReader::VisitMemberExpr(MemberExpr *E) {
1019   VisitExpr(E);
1020
1021   bool HasQualifier = Record.readInt();
1022   bool HasFoundDecl = Record.readInt();
1023   bool HasTemplateInfo = Record.readInt();
1024   unsigned NumTemplateArgs = Record.readInt();
1025
1026   E->Base = Record.readSubExpr();
1027   E->MemberDecl = Record.readDeclAs<ValueDecl>();
1028   E->MemberDNLoc = Record.readDeclarationNameLoc(E->MemberDecl->getDeclName());
1029   E->MemberLoc = Record.readSourceLocation();
1030   E->MemberExprBits.IsArrow = Record.readInt();
1031   E->MemberExprBits.HasQualifierOrFoundDecl = HasQualifier || HasFoundDecl;
1032   E->MemberExprBits.HasTemplateKWAndArgsInfo = HasTemplateInfo;
1033   E->MemberExprBits.HadMultipleCandidates = Record.readInt();
1034   E->MemberExprBits.NonOdrUseReason = Record.readInt();
1035   E->MemberExprBits.OperatorLoc = Record.readSourceLocation();
1036
1037   if (HasQualifier || HasFoundDecl) {
1038     DeclAccessPair FoundDecl;
1039     if (HasFoundDecl) {
1040       auto *FoundD = Record.readDeclAs<NamedDecl>();
1041       auto AS = (AccessSpecifier)Record.readInt();
1042       FoundDecl = DeclAccessPair::make(FoundD, AS);
1043     } else {
1044       FoundDecl = DeclAccessPair::make(E->MemberDecl,
1045                                        E->MemberDecl->getAccess());
1046     }
1047     E->getTrailingObjects<MemberExprNameQualifier>()->FoundDecl = FoundDecl;
1048
1049     NestedNameSpecifierLoc QualifierLoc;
1050     if (HasQualifier)
1051       QualifierLoc = Record.readNestedNameSpecifierLoc();
1052     E->getTrailingObjects<MemberExprNameQualifier>()->QualifierLoc =
1053         QualifierLoc;
1054   }
1055
1056   if (HasTemplateInfo)
1057     ReadTemplateKWAndArgsInfo(
1058         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
1059         E->getTrailingObjects<TemplateArgumentLoc>(), NumTemplateArgs);
1060 }
1061
1062 void ASTStmtReader::VisitObjCIsaExpr(ObjCIsaExpr *E) {
1063   VisitExpr(E);
1064   E->setBase(Record.readSubExpr());
1065   E->setIsaMemberLoc(readSourceLocation());
1066   E->setOpLoc(readSourceLocation());
1067   E->setArrow(Record.readInt());
1068 }
1069
1070 void ASTStmtReader::
1071 VisitObjCIndirectCopyRestoreExpr(ObjCIndirectCopyRestoreExpr *E) {
1072   VisitExpr(E);
1073   E->Operand = Record.readSubExpr();
1074   E->setShouldCopy(Record.readInt());
1075 }
1076
1077 void ASTStmtReader::VisitObjCBridgedCastExpr(ObjCBridgedCastExpr *E) {
1078   VisitExplicitCastExpr(E);
1079   E->LParenLoc = readSourceLocation();
1080   E->BridgeKeywordLoc = readSourceLocation();
1081   E->Kind = Record.readInt();
1082 }
1083
1084 void ASTStmtReader::VisitCastExpr(CastExpr *E) {
1085   VisitExpr(E);
1086   unsigned NumBaseSpecs = Record.readInt();
1087   assert(NumBaseSpecs == E->path_size());
1088   unsigned HasFPFeatures = Record.readInt();
1089   assert(E->hasStoredFPFeatures() == HasFPFeatures);
1090   E->setSubExpr(Record.readSubExpr());
1091   E->setCastKind((CastKind)Record.readInt());
1092   CastExpr::path_iterator BaseI = E->path_begin();
1093   while (NumBaseSpecs--) {
1094     auto *BaseSpec = new (Record.getContext()) CXXBaseSpecifier;
1095     *BaseSpec = Record.readCXXBaseSpecifier();
1096     *BaseI++ = BaseSpec;
1097   }
1098   if (HasFPFeatures)
1099     *E->getTrailingFPFeatures() =
1100         FPOptionsOverride::getFromOpaqueInt(Record.readInt());
1101 }
1102
1103 void ASTStmtReader::VisitBinaryOperator(BinaryOperator *E) {
1104   bool hasFP_Features;
1105   VisitExpr(E);
1106   E->setHasStoredFPFeatures(hasFP_Features = Record.readInt());
1107   E->setOpcode((BinaryOperator::Opcode)Record.readInt());
1108   E->setLHS(Record.readSubExpr());
1109   E->setRHS(Record.readSubExpr());
1110   E->setOperatorLoc(readSourceLocation());
1111   if (hasFP_Features)
1112     E->setStoredFPFeatures(
1113         FPOptionsOverride::getFromOpaqueInt(Record.readInt()));
1114 }
1115
1116 void ASTStmtReader::VisitCompoundAssignOperator(CompoundAssignOperator *E) {
1117   VisitBinaryOperator(E);
1118   E->setComputationLHSType(Record.readType());
1119   E->setComputationResultType(Record.readType());
1120 }
1121
1122 void ASTStmtReader::VisitConditionalOperator(ConditionalOperator *E) {
1123   VisitExpr(E);
1124   E->SubExprs[ConditionalOperator::COND] = Record.readSubExpr();
1125   E->SubExprs[ConditionalOperator::LHS] = Record.readSubExpr();
1126   E->SubExprs[ConditionalOperator::RHS] = Record.readSubExpr();
1127   E->QuestionLoc = readSourceLocation();
1128   E->ColonLoc = readSourceLocation();
1129 }
1130
1131 void
1132 ASTStmtReader::VisitBinaryConditionalOperator(BinaryConditionalOperator *E) {
1133   VisitExpr(E);
1134   E->OpaqueValue = cast<OpaqueValueExpr>(Record.readSubExpr());
1135   E->SubExprs[BinaryConditionalOperator::COMMON] = Record.readSubExpr();
1136   E->SubExprs[BinaryConditionalOperator::COND] = Record.readSubExpr();
1137   E->SubExprs[BinaryConditionalOperator::LHS] = Record.readSubExpr();
1138   E->SubExprs[BinaryConditionalOperator::RHS] = Record.readSubExpr();
1139   E->QuestionLoc = readSourceLocation();
1140   E->ColonLoc = readSourceLocation();
1141 }
1142
1143 void ASTStmtReader::VisitImplicitCastExpr(ImplicitCastExpr *E) {
1144   VisitCastExpr(E);
1145   E->setIsPartOfExplicitCast(Record.readInt());
1146 }
1147
1148 void ASTStmtReader::VisitExplicitCastExpr(ExplicitCastExpr *E) {
1149   VisitCastExpr(E);
1150   E->setTypeInfoAsWritten(readTypeSourceInfo());
1151 }
1152
1153 void ASTStmtReader::VisitCStyleCastExpr(CStyleCastExpr *E) {
1154   VisitExplicitCastExpr(E);
1155   E->setLParenLoc(readSourceLocation());
1156   E->setRParenLoc(readSourceLocation());
1157 }
1158
1159 void ASTStmtReader::VisitCompoundLiteralExpr(CompoundLiteralExpr *E) {
1160   VisitExpr(E);
1161   E->setLParenLoc(readSourceLocation());
1162   E->setTypeSourceInfo(readTypeSourceInfo());
1163   E->setInitializer(Record.readSubExpr());
1164   E->setFileScope(Record.readInt());
1165 }
1166
1167 void ASTStmtReader::VisitExtVectorElementExpr(ExtVectorElementExpr *E) {
1168   VisitExpr(E);
1169   E->setBase(Record.readSubExpr());
1170   E->setAccessor(Record.readIdentifier());
1171   E->setAccessorLoc(readSourceLocation());
1172 }
1173
1174 void ASTStmtReader::VisitInitListExpr(InitListExpr *E) {
1175   VisitExpr(E);
1176   if (auto *SyntForm = cast_or_null<InitListExpr>(Record.readSubStmt()))
1177     E->setSyntacticForm(SyntForm);
1178   E->setLBraceLoc(readSourceLocation());
1179   E->setRBraceLoc(readSourceLocation());
1180   bool isArrayFiller = Record.readInt();
1181   Expr *filler = nullptr;
1182   if (isArrayFiller) {
1183     filler = Record.readSubExpr();
1184     E->ArrayFillerOrUnionFieldInit = filler;
1185   } else
1186     E->ArrayFillerOrUnionFieldInit = readDeclAs<FieldDecl>();
1187   E->sawArrayRangeDesignator(Record.readInt());
1188   unsigned NumInits = Record.readInt();
1189   E->reserveInits(Record.getContext(), NumInits);
1190   if (isArrayFiller) {
1191     for (unsigned I = 0; I != NumInits; ++I) {
1192       Expr *init = Record.readSubExpr();
1193       E->updateInit(Record.getContext(), I, init ? init : filler);
1194     }
1195   } else {
1196     for (unsigned I = 0; I != NumInits; ++I)
1197       E->updateInit(Record.getContext(), I, Record.readSubExpr());
1198   }
1199 }
1200
1201 void ASTStmtReader::VisitDesignatedInitExpr(DesignatedInitExpr *E) {
1202   using Designator = DesignatedInitExpr::Designator;
1203
1204   VisitExpr(E);
1205   unsigned NumSubExprs = Record.readInt();
1206   assert(NumSubExprs == E->getNumSubExprs() && "Wrong number of subexprs");
1207   for (unsigned I = 0; I != NumSubExprs; ++I)
1208     E->setSubExpr(I, Record.readSubExpr());
1209   E->setEqualOrColonLoc(readSourceLocation());
1210   E->setGNUSyntax(Record.readInt());
1211
1212   SmallVector<Designator, 4> Designators;
1213   while (Record.getIdx() < Record.size()) {
1214     switch ((DesignatorTypes)Record.readInt()) {
1215     case DESIG_FIELD_DECL: {
1216       auto *Field = readDeclAs<FieldDecl>();
1217       SourceLocation DotLoc = readSourceLocation();
1218       SourceLocation FieldLoc = readSourceLocation();
1219       Designators.push_back(Designator::CreateFieldDesignator(
1220           Field->getIdentifier(), DotLoc, FieldLoc));
1221       Designators.back().setFieldDecl(Field);
1222       break;
1223     }
1224
1225     case DESIG_FIELD_NAME: {
1226       const IdentifierInfo *Name = Record.readIdentifier();
1227       SourceLocation DotLoc = readSourceLocation();
1228       SourceLocation FieldLoc = readSourceLocation();
1229       Designators.push_back(Designator::CreateFieldDesignator(Name, DotLoc,
1230                                                               FieldLoc));
1231       break;
1232     }
1233
1234     case DESIG_ARRAY: {
1235       unsigned Index = Record.readInt();
1236       SourceLocation LBracketLoc = readSourceLocation();
1237       SourceLocation RBracketLoc = readSourceLocation();
1238       Designators.push_back(Designator::CreateArrayDesignator(Index,
1239                                                               LBracketLoc,
1240                                                               RBracketLoc));
1241       break;
1242     }
1243
1244     case DESIG_ARRAY_RANGE: {
1245       unsigned Index = Record.readInt();
1246       SourceLocation LBracketLoc = readSourceLocation();
1247       SourceLocation EllipsisLoc = readSourceLocation();
1248       SourceLocation RBracketLoc = readSourceLocation();
1249       Designators.push_back(Designator::CreateArrayRangeDesignator(
1250           Index, LBracketLoc, EllipsisLoc, RBracketLoc));
1251       break;
1252     }
1253     }
1254   }
1255   E->setDesignators(Record.getContext(),
1256                     Designators.data(), Designators.size());
1257 }
1258
1259 void ASTStmtReader::VisitDesignatedInitUpdateExpr(DesignatedInitUpdateExpr *E) {
1260   VisitExpr(E);
1261   E->setBase(Record.readSubExpr());
1262   E->setUpdater(Record.readSubExpr());
1263 }
1264
1265 void ASTStmtReader::VisitNoInitExpr(NoInitExpr *E) {
1266   VisitExpr(E);
1267 }
1268
1269 void ASTStmtReader::VisitArrayInitLoopExpr(ArrayInitLoopExpr *E) {
1270   VisitExpr(E);
1271   E->SubExprs[0] = Record.readSubExpr();
1272   E->SubExprs[1] = Record.readSubExpr();
1273 }
1274
1275 void ASTStmtReader::VisitArrayInitIndexExpr(ArrayInitIndexExpr *E) {
1276   VisitExpr(E);
1277 }
1278
1279 void ASTStmtReader::VisitImplicitValueInitExpr(ImplicitValueInitExpr *E) {
1280   VisitExpr(E);
1281 }
1282
1283 void ASTStmtReader::VisitVAArgExpr(VAArgExpr *E) {
1284   VisitExpr(E);
1285   E->setSubExpr(Record.readSubExpr());
1286   E->setWrittenTypeInfo(readTypeSourceInfo());
1287   E->setBuiltinLoc(readSourceLocation());
1288   E->setRParenLoc(readSourceLocation());
1289   E->setIsMicrosoftABI(Record.readInt());
1290 }
1291
1292 void ASTStmtReader::VisitSourceLocExpr(SourceLocExpr *E) {
1293   VisitExpr(E);
1294   E->ParentContext = readDeclAs<DeclContext>();
1295   E->BuiltinLoc = readSourceLocation();
1296   E->RParenLoc = readSourceLocation();
1297   E->SourceLocExprBits.Kind =
1298       static_cast<SourceLocExpr::IdentKind>(Record.readInt());
1299 }
1300
1301 void ASTStmtReader::VisitAddrLabelExpr(AddrLabelExpr *E) {
1302   VisitExpr(E);
1303   E->setAmpAmpLoc(readSourceLocation());
1304   E->setLabelLoc(readSourceLocation());
1305   E->setLabel(readDeclAs<LabelDecl>());
1306 }
1307
1308 void ASTStmtReader::VisitStmtExpr(StmtExpr *E) {
1309   VisitExpr(E);
1310   E->setLParenLoc(readSourceLocation());
1311   E->setRParenLoc(readSourceLocation());
1312   E->setSubStmt(cast_or_null<CompoundStmt>(Record.readSubStmt()));
1313   E->StmtExprBits.TemplateDepth = Record.readInt();
1314 }
1315
1316 void ASTStmtReader::VisitChooseExpr(ChooseExpr *E) {
1317   VisitExpr(E);
1318   E->setCond(Record.readSubExpr());
1319   E->setLHS(Record.readSubExpr());
1320   E->setRHS(Record.readSubExpr());
1321   E->setBuiltinLoc(readSourceLocation());
1322   E->setRParenLoc(readSourceLocation());
1323   E->setIsConditionTrue(Record.readInt());
1324 }
1325
1326 void ASTStmtReader::VisitGNUNullExpr(GNUNullExpr *E) {
1327   VisitExpr(E);
1328   E->setTokenLocation(readSourceLocation());
1329 }
1330
1331 void ASTStmtReader::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
1332   VisitExpr(E);
1333   SmallVector<Expr *, 16> Exprs;
1334   unsigned NumExprs = Record.readInt();
1335   while (NumExprs--)
1336     Exprs.push_back(Record.readSubExpr());
1337   E->setExprs(Record.getContext(), Exprs);
1338   E->setBuiltinLoc(readSourceLocation());
1339   E->setRParenLoc(readSourceLocation());
1340 }
1341
1342 void ASTStmtReader::VisitConvertVectorExpr(ConvertVectorExpr *E) {
1343   VisitExpr(E);
1344   E->BuiltinLoc = readSourceLocation();
1345   E->RParenLoc = readSourceLocation();
1346   E->TInfo = readTypeSourceInfo();
1347   E->SrcExpr = Record.readSubExpr();
1348 }
1349
1350 void ASTStmtReader::VisitBlockExpr(BlockExpr *E) {
1351   VisitExpr(E);
1352   E->setBlockDecl(readDeclAs<BlockDecl>());
1353 }
1354
1355 void ASTStmtReader::VisitGenericSelectionExpr(GenericSelectionExpr *E) {
1356   VisitExpr(E);
1357
1358   unsigned NumAssocs = Record.readInt();
1359   assert(NumAssocs == E->getNumAssocs() && "Wrong NumAssocs!");
1360   E->IsExprPredicate = Record.readInt();
1361   E->ResultIndex = Record.readInt();
1362   E->GenericSelectionExprBits.GenericLoc = readSourceLocation();
1363   E->DefaultLoc = readSourceLocation();
1364   E->RParenLoc = readSourceLocation();
1365
1366   Stmt **Stmts = E->getTrailingObjects<Stmt *>();
1367   // Add 1 to account for the controlling expression which is the first
1368   // expression in the trailing array of Stmt *. This is not needed for
1369   // the trailing array of TypeSourceInfo *.
1370   for (unsigned I = 0, N = NumAssocs + 1; I < N; ++I)
1371     Stmts[I] = Record.readSubExpr();
1372
1373   TypeSourceInfo **TSIs = E->getTrailingObjects<TypeSourceInfo *>();
1374   for (unsigned I = 0, N = NumAssocs; I < N; ++I)
1375     TSIs[I] = readTypeSourceInfo();
1376 }
1377
1378 void ASTStmtReader::VisitPseudoObjectExpr(PseudoObjectExpr *E) {
1379   VisitExpr(E);
1380   unsigned numSemanticExprs = Record.readInt();
1381   assert(numSemanticExprs + 1 == E->PseudoObjectExprBits.NumSubExprs);
1382   E->PseudoObjectExprBits.ResultIndex = Record.readInt();
1383
1384   // Read the syntactic expression.
1385   E->getSubExprsBuffer()[0] = Record.readSubExpr();
1386
1387   // Read all the semantic expressions.
1388   for (unsigned i = 0; i != numSemanticExprs; ++i) {
1389     Expr *subExpr = Record.readSubExpr();
1390     E->getSubExprsBuffer()[i+1] = subExpr;
1391   }
1392 }
1393
1394 void ASTStmtReader::VisitAtomicExpr(AtomicExpr *E) {
1395   VisitExpr(E);
1396   E->Op = AtomicExpr::AtomicOp(Record.readInt());
1397   E->NumSubExprs = AtomicExpr::getNumSubExprs(E->Op);
1398   for (unsigned I = 0; I != E->NumSubExprs; ++I)
1399     E->SubExprs[I] = Record.readSubExpr();
1400   E->BuiltinLoc = readSourceLocation();
1401   E->RParenLoc = readSourceLocation();
1402 }
1403
1404 //===----------------------------------------------------------------------===//
1405 // Objective-C Expressions and Statements
1406
1407 void ASTStmtReader::VisitObjCStringLiteral(ObjCStringLiteral *E) {
1408   VisitExpr(E);
1409   E->setString(cast<StringLiteral>(Record.readSubStmt()));
1410   E->setAtLoc(readSourceLocation());
1411 }
1412
1413 void ASTStmtReader::VisitObjCBoxedExpr(ObjCBoxedExpr *E) {
1414   VisitExpr(E);
1415   // could be one of several IntegerLiteral, FloatLiteral, etc.
1416   E->SubExpr = Record.readSubStmt();
1417   E->BoxingMethod = readDeclAs<ObjCMethodDecl>();
1418   E->Range = readSourceRange();
1419 }
1420
1421 void ASTStmtReader::VisitObjCArrayLiteral(ObjCArrayLiteral *E) {
1422   VisitExpr(E);
1423   unsigned NumElements = Record.readInt();
1424   assert(NumElements == E->getNumElements() && "Wrong number of elements");
1425   Expr **Elements = E->getElements();
1426   for (unsigned I = 0, N = NumElements; I != N; ++I)
1427     Elements[I] = Record.readSubExpr();
1428   E->ArrayWithObjectsMethod = readDeclAs<ObjCMethodDecl>();
1429   E->Range = readSourceRange();
1430 }
1431
1432 void ASTStmtReader::VisitObjCDictionaryLiteral(ObjCDictionaryLiteral *E) {
1433   VisitExpr(E);
1434   unsigned NumElements = Record.readInt();
1435   assert(NumElements == E->getNumElements() && "Wrong number of elements");
1436   bool HasPackExpansions = Record.readInt();
1437   assert(HasPackExpansions == E->HasPackExpansions &&"Pack expansion mismatch");
1438   auto *KeyValues =
1439       E->getTrailingObjects<ObjCDictionaryLiteral::KeyValuePair>();
1440   auto *Expansions =
1441       E->getTrailingObjects<ObjCDictionaryLiteral::ExpansionData>();
1442   for (unsigned I = 0; I != NumElements; ++I) {
1443     KeyValues[I].Key = Record.readSubExpr();
1444     KeyValues[I].Value = Record.readSubExpr();
1445     if (HasPackExpansions) {
1446       Expansions[I].EllipsisLoc = readSourceLocation();
1447       Expansions[I].NumExpansionsPlusOne = Record.readInt();
1448     }
1449   }
1450   E->DictWithObjectsMethod = readDeclAs<ObjCMethodDecl>();
1451   E->Range = readSourceRange();
1452 }
1453
1454 void ASTStmtReader::VisitObjCEncodeExpr(ObjCEncodeExpr *E) {
1455   VisitExpr(E);
1456   E->setEncodedTypeSourceInfo(readTypeSourceInfo());
1457   E->setAtLoc(readSourceLocation());
1458   E->setRParenLoc(readSourceLocation());
1459 }
1460
1461 void ASTStmtReader::VisitObjCSelectorExpr(ObjCSelectorExpr *E) {
1462   VisitExpr(E);
1463   E->setSelector(Record.readSelector());
1464   E->setAtLoc(readSourceLocation());
1465   E->setRParenLoc(readSourceLocation());
1466 }
1467
1468 void ASTStmtReader::VisitObjCProtocolExpr(ObjCProtocolExpr *E) {
1469   VisitExpr(E);
1470   E->setProtocol(readDeclAs<ObjCProtocolDecl>());
1471   E->setAtLoc(readSourceLocation());
1472   E->ProtoLoc = readSourceLocation();
1473   E->setRParenLoc(readSourceLocation());
1474 }
1475
1476 void ASTStmtReader::VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) {
1477   VisitExpr(E);
1478   E->setDecl(readDeclAs<ObjCIvarDecl>());
1479   E->setLocation(readSourceLocation());
1480   E->setOpLoc(readSourceLocation());
1481   E->setBase(Record.readSubExpr());
1482   E->setIsArrow(Record.readInt());
1483   E->setIsFreeIvar(Record.readInt());
1484 }
1485
1486 void ASTStmtReader::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *E) {
1487   VisitExpr(E);
1488   unsigned MethodRefFlags = Record.readInt();
1489   bool Implicit = Record.readInt() != 0;
1490   if (Implicit) {
1491     auto *Getter = readDeclAs<ObjCMethodDecl>();
1492     auto *Setter = readDeclAs<ObjCMethodDecl>();
1493     E->setImplicitProperty(Getter, Setter, MethodRefFlags);
1494   } else {
1495     E->setExplicitProperty(readDeclAs<ObjCPropertyDecl>(), MethodRefFlags);
1496   }
1497   E->setLocation(readSourceLocation());
1498   E->setReceiverLocation(readSourceLocation());
1499   switch (Record.readInt()) {
1500   case 0:
1501     E->setBase(Record.readSubExpr());
1502     break;
1503   case 1:
1504     E->setSuperReceiver(Record.readType());
1505     break;
1506   case 2:
1507     E->setClassReceiver(readDeclAs<ObjCInterfaceDecl>());
1508     break;
1509   }
1510 }
1511
1512 void ASTStmtReader::VisitObjCSubscriptRefExpr(ObjCSubscriptRefExpr *E) {
1513   VisitExpr(E);
1514   E->setRBracket(readSourceLocation());
1515   E->setBaseExpr(Record.readSubExpr());
1516   E->setKeyExpr(Record.readSubExpr());
1517   E->GetAtIndexMethodDecl = readDeclAs<ObjCMethodDecl>();
1518   E->SetAtIndexMethodDecl = readDeclAs<ObjCMethodDecl>();
1519 }
1520
1521 void ASTStmtReader::VisitObjCMessageExpr(ObjCMessageExpr *E) {
1522   VisitExpr(E);
1523   assert(Record.peekInt() == E->getNumArgs());
1524   Record.skipInts(1);
1525   unsigned NumStoredSelLocs = Record.readInt();
1526   E->SelLocsKind = Record.readInt();
1527   E->setDelegateInitCall(Record.readInt());
1528   E->IsImplicit = Record.readInt();
1529   auto Kind = static_cast<ObjCMessageExpr::ReceiverKind>(Record.readInt());
1530   switch (Kind) {
1531   case ObjCMessageExpr::Instance:
1532     E->setInstanceReceiver(Record.readSubExpr());
1533     break;
1534
1535   case ObjCMessageExpr::Class:
1536     E->setClassReceiver(readTypeSourceInfo());
1537     break;
1538
1539   case ObjCMessageExpr::SuperClass:
1540   case ObjCMessageExpr::SuperInstance: {
1541     QualType T = Record.readType();
1542     SourceLocation SuperLoc = readSourceLocation();
1543     E->setSuper(SuperLoc, T, Kind == ObjCMessageExpr::SuperInstance);
1544     break;
1545   }
1546   }
1547
1548   assert(Kind == E->getReceiverKind());
1549
1550   if (Record.readInt())
1551     E->setMethodDecl(readDeclAs<ObjCMethodDecl>());
1552   else
1553     E->setSelector(Record.readSelector());
1554
1555   E->LBracLoc = readSourceLocation();
1556   E->RBracLoc = readSourceLocation();
1557
1558   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
1559     E->setArg(I, Record.readSubExpr());
1560
1561   SourceLocation *Locs = E->getStoredSelLocs();
1562   for (unsigned I = 0; I != NumStoredSelLocs; ++I)
1563     Locs[I] = readSourceLocation();
1564 }
1565
1566 void ASTStmtReader::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
1567   VisitStmt(S);
1568   S->setElement(Record.readSubStmt());
1569   S->setCollection(Record.readSubExpr());
1570   S->setBody(Record.readSubStmt());
1571   S->setForLoc(readSourceLocation());
1572   S->setRParenLoc(readSourceLocation());
1573 }
1574
1575 void ASTStmtReader::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
1576   VisitStmt(S);
1577   S->setCatchBody(Record.readSubStmt());
1578   S->setCatchParamDecl(readDeclAs<VarDecl>());
1579   S->setAtCatchLoc(readSourceLocation());
1580   S->setRParenLoc(readSourceLocation());
1581 }
1582
1583 void ASTStmtReader::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
1584   VisitStmt(S);
1585   S->setFinallyBody(Record.readSubStmt());
1586   S->setAtFinallyLoc(readSourceLocation());
1587 }
1588
1589 void ASTStmtReader::VisitObjCAutoreleasePoolStmt(ObjCAutoreleasePoolStmt *S) {
1590   VisitStmt(S); // FIXME: no test coverage.
1591   S->setSubStmt(Record.readSubStmt());
1592   S->setAtLoc(readSourceLocation());
1593 }
1594
1595 void ASTStmtReader::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
1596   VisitStmt(S);
1597   assert(Record.peekInt() == S->getNumCatchStmts());
1598   Record.skipInts(1);
1599   bool HasFinally = Record.readInt();
1600   S->setTryBody(Record.readSubStmt());
1601   for (unsigned I = 0, N = S->getNumCatchStmts(); I != N; ++I)
1602     S->setCatchStmt(I, cast_or_null<ObjCAtCatchStmt>(Record.readSubStmt()));
1603
1604   if (HasFinally)
1605     S->setFinallyStmt(Record.readSubStmt());
1606   S->setAtTryLoc(readSourceLocation());
1607 }
1608
1609 void ASTStmtReader::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
1610   VisitStmt(S); // FIXME: no test coverage.
1611   S->setSynchExpr(Record.readSubStmt());
1612   S->setSynchBody(Record.readSubStmt());
1613   S->setAtSynchronizedLoc(readSourceLocation());
1614 }
1615
1616 void ASTStmtReader::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
1617   VisitStmt(S); // FIXME: no test coverage.
1618   S->setThrowExpr(Record.readSubStmt());
1619   S->setThrowLoc(readSourceLocation());
1620 }
1621
1622 void ASTStmtReader::VisitObjCBoolLiteralExpr(ObjCBoolLiteralExpr *E) {
1623   VisitExpr(E);
1624   E->setValue(Record.readInt());
1625   E->setLocation(readSourceLocation());
1626 }
1627
1628 void ASTStmtReader::VisitObjCAvailabilityCheckExpr(ObjCAvailabilityCheckExpr *E) {
1629   VisitExpr(E);
1630   SourceRange R = Record.readSourceRange();
1631   E->AtLoc = R.getBegin();
1632   E->RParen = R.getEnd();
1633   E->VersionToCheck = Record.readVersionTuple();
1634 }
1635
1636 //===----------------------------------------------------------------------===//
1637 // C++ Expressions and Statements
1638 //===----------------------------------------------------------------------===//
1639
1640 void ASTStmtReader::VisitCXXCatchStmt(CXXCatchStmt *S) {
1641   VisitStmt(S);
1642   S->CatchLoc = readSourceLocation();
1643   S->ExceptionDecl = readDeclAs<VarDecl>();
1644   S->HandlerBlock = Record.readSubStmt();
1645 }
1646
1647 void ASTStmtReader::VisitCXXTryStmt(CXXTryStmt *S) {
1648   VisitStmt(S);
1649   assert(Record.peekInt() == S->getNumHandlers() && "NumStmtFields is wrong ?");
1650   Record.skipInts(1);
1651   S->TryLoc = readSourceLocation();
1652   S->getStmts()[0] = Record.readSubStmt();
1653   for (unsigned i = 0, e = S->getNumHandlers(); i != e; ++i)
1654     S->getStmts()[i + 1] = Record.readSubStmt();
1655 }
1656
1657 void ASTStmtReader::VisitCXXForRangeStmt(CXXForRangeStmt *S) {
1658   VisitStmt(S);
1659   S->ForLoc = readSourceLocation();
1660   S->CoawaitLoc = readSourceLocation();
1661   S->ColonLoc = readSourceLocation();
1662   S->RParenLoc = readSourceLocation();
1663   S->setInit(Record.readSubStmt());
1664   S->setRangeStmt(Record.readSubStmt());
1665   S->setBeginStmt(Record.readSubStmt());
1666   S->setEndStmt(Record.readSubStmt());
1667   S->setCond(Record.readSubExpr());
1668   S->setInc(Record.readSubExpr());
1669   S->setLoopVarStmt(Record.readSubStmt());
1670   S->setBody(Record.readSubStmt());
1671 }
1672
1673 void ASTStmtReader::VisitMSDependentExistsStmt(MSDependentExistsStmt *S) {
1674   VisitStmt(S);
1675   S->KeywordLoc = readSourceLocation();
1676   S->IsIfExists = Record.readInt();
1677   S->QualifierLoc = Record.readNestedNameSpecifierLoc();
1678   S->NameInfo = Record.readDeclarationNameInfo();
1679   S->SubStmt = Record.readSubStmt();
1680 }
1681
1682 void ASTStmtReader::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *E) {
1683   VisitCallExpr(E);
1684   E->CXXOperatorCallExprBits.OperatorKind = Record.readInt();
1685   E->Range = Record.readSourceRange();
1686 }
1687
1688 void ASTStmtReader::VisitCXXRewrittenBinaryOperator(
1689     CXXRewrittenBinaryOperator *E) {
1690   VisitExpr(E);
1691   E->CXXRewrittenBinaryOperatorBits.IsReversed = Record.readInt();
1692   E->SemanticForm = Record.readSubExpr();
1693 }
1694
1695 void ASTStmtReader::VisitCXXConstructExpr(CXXConstructExpr *E) {
1696   VisitExpr(E);
1697
1698   unsigned NumArgs = Record.readInt();
1699   assert((NumArgs == E->getNumArgs()) && "Wrong NumArgs!");
1700
1701   E->CXXConstructExprBits.Elidable = Record.readInt();
1702   E->CXXConstructExprBits.HadMultipleCandidates = Record.readInt();
1703   E->CXXConstructExprBits.ListInitialization = Record.readInt();
1704   E->CXXConstructExprBits.StdInitListInitialization = Record.readInt();
1705   E->CXXConstructExprBits.ZeroInitialization = Record.readInt();
1706   E->CXXConstructExprBits.ConstructionKind = Record.readInt();
1707   E->CXXConstructExprBits.IsImmediateEscalating = Record.readInt();
1708   E->CXXConstructExprBits.Loc = readSourceLocation();
1709   E->Constructor = readDeclAs<CXXConstructorDecl>();
1710   E->ParenOrBraceRange = readSourceRange();
1711
1712   for (unsigned I = 0; I != NumArgs; ++I)
1713     E->setArg(I, Record.readSubExpr());
1714 }
1715
1716 void ASTStmtReader::VisitCXXInheritedCtorInitExpr(CXXInheritedCtorInitExpr *E) {
1717   VisitExpr(E);
1718   E->Constructor = readDeclAs<CXXConstructorDecl>();
1719   E->Loc = readSourceLocation();
1720   E->ConstructsVirtualBase = Record.readInt();
1721   E->InheritedFromVirtualBase = Record.readInt();
1722 }
1723
1724 void ASTStmtReader::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *E) {
1725   VisitCXXConstructExpr(E);
1726   E->TSI = readTypeSourceInfo();
1727 }
1728
1729 void ASTStmtReader::VisitLambdaExpr(LambdaExpr *E) {
1730   VisitExpr(E);
1731   unsigned NumCaptures = Record.readInt();
1732   (void)NumCaptures;
1733   assert(NumCaptures == E->LambdaExprBits.NumCaptures);
1734   E->IntroducerRange = readSourceRange();
1735   E->LambdaExprBits.CaptureDefault = Record.readInt();
1736   E->CaptureDefaultLoc = readSourceLocation();
1737   E->LambdaExprBits.ExplicitParams = Record.readInt();
1738   E->LambdaExprBits.ExplicitResultType = Record.readInt();
1739   E->ClosingBrace = readSourceLocation();
1740
1741   // Read capture initializers.
1742   for (LambdaExpr::capture_init_iterator C = E->capture_init_begin(),
1743                                          CEnd = E->capture_init_end();
1744        C != CEnd; ++C)
1745     *C = Record.readSubExpr();
1746
1747   // The body will be lazily deserialized when needed from the call operator
1748   // declaration.
1749 }
1750
1751 void
1752 ASTStmtReader::VisitCXXStdInitializerListExpr(CXXStdInitializerListExpr *E) {
1753   VisitExpr(E);
1754   E->SubExpr = Record.readSubExpr();
1755 }
1756
1757 void ASTStmtReader::VisitCXXNamedCastExpr(CXXNamedCastExpr *E) {
1758   VisitExplicitCastExpr(E);
1759   SourceRange R = readSourceRange();
1760   E->Loc = R.getBegin();
1761   E->RParenLoc = R.getEnd();
1762   R = readSourceRange();
1763   E->AngleBrackets = R;
1764 }
1765
1766 void ASTStmtReader::VisitCXXStaticCastExpr(CXXStaticCastExpr *E) {
1767   return VisitCXXNamedCastExpr(E);
1768 }
1769
1770 void ASTStmtReader::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *E) {
1771   return VisitCXXNamedCastExpr(E);
1772 }
1773
1774 void ASTStmtReader::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *E) {
1775   return VisitCXXNamedCastExpr(E);
1776 }
1777
1778 void ASTStmtReader::VisitCXXAddrspaceCastExpr(CXXAddrspaceCastExpr *E) {
1779   return VisitCXXNamedCastExpr(E);
1780 }
1781
1782 void ASTStmtReader::VisitCXXConstCastExpr(CXXConstCastExpr *E) {
1783   return VisitCXXNamedCastExpr(E);
1784 }
1785
1786 void ASTStmtReader::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *E) {
1787   VisitExplicitCastExpr(E);
1788   E->setLParenLoc(readSourceLocation());
1789   E->setRParenLoc(readSourceLocation());
1790 }
1791
1792 void ASTStmtReader::VisitBuiltinBitCastExpr(BuiltinBitCastExpr *E) {
1793   VisitExplicitCastExpr(E);
1794   E->KWLoc = readSourceLocation();
1795   E->RParenLoc = readSourceLocation();
1796 }
1797
1798 void ASTStmtReader::VisitUserDefinedLiteral(UserDefinedLiteral *E) {
1799   VisitCallExpr(E);
1800   E->UDSuffixLoc = readSourceLocation();
1801 }
1802
1803 void ASTStmtReader::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *E) {
1804   VisitExpr(E);
1805   E->setValue(Record.readInt());
1806   E->setLocation(readSourceLocation());
1807 }
1808
1809 void ASTStmtReader::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *E) {
1810   VisitExpr(E);
1811   E->setLocation(readSourceLocation());
1812 }
1813
1814 void ASTStmtReader::VisitCXXTypeidExpr(CXXTypeidExpr *E) {
1815   VisitExpr(E);
1816   E->setSourceRange(readSourceRange());
1817   if (E->isTypeOperand())
1818     E->Operand = readTypeSourceInfo();
1819   else
1820     E->Operand = Record.readSubExpr();
1821 }
1822
1823 void ASTStmtReader::VisitCXXThisExpr(CXXThisExpr *E) {
1824   VisitExpr(E);
1825   E->setLocation(readSourceLocation());
1826   E->setImplicit(Record.readInt());
1827 }
1828
1829 void ASTStmtReader::VisitCXXThrowExpr(CXXThrowExpr *E) {
1830   VisitExpr(E);
1831   E->CXXThrowExprBits.ThrowLoc = readSourceLocation();
1832   E->Operand = Record.readSubExpr();
1833   E->CXXThrowExprBits.IsThrownVariableInScope = Record.readInt();
1834 }
1835
1836 void ASTStmtReader::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *E) {
1837   VisitExpr(E);
1838   E->Param = readDeclAs<ParmVarDecl>();
1839   E->UsedContext = readDeclAs<DeclContext>();
1840   E->CXXDefaultArgExprBits.Loc = readSourceLocation();
1841   E->CXXDefaultArgExprBits.HasRewrittenInit = Record.readInt();
1842   if (E->CXXDefaultArgExprBits.HasRewrittenInit)
1843     *E->getTrailingObjects<Expr *>() = Record.readSubExpr();
1844 }
1845
1846 void ASTStmtReader::VisitCXXDefaultInitExpr(CXXDefaultInitExpr *E) {
1847   VisitExpr(E);
1848   E->CXXDefaultInitExprBits.HasRewrittenInit = Record.readInt();
1849   E->Field = readDeclAs<FieldDecl>();
1850   E->UsedContext = readDeclAs<DeclContext>();
1851   E->CXXDefaultInitExprBits.Loc = readSourceLocation();
1852   if (E->CXXDefaultInitExprBits.HasRewrittenInit)
1853     *E->getTrailingObjects<Expr *>() = Record.readSubExpr();
1854 }
1855
1856 void ASTStmtReader::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *E) {
1857   VisitExpr(E);
1858   E->setTemporary(Record.readCXXTemporary());
1859   E->setSubExpr(Record.readSubExpr());
1860 }
1861
1862 void ASTStmtReader::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E) {
1863   VisitExpr(E);
1864   E->TypeInfo = readTypeSourceInfo();
1865   E->CXXScalarValueInitExprBits.RParenLoc = readSourceLocation();
1866 }
1867
1868 void ASTStmtReader::VisitCXXNewExpr(CXXNewExpr *E) {
1869   VisitExpr(E);
1870
1871   bool IsArray = Record.readInt();
1872   bool HasInit = Record.readInt();
1873   unsigned NumPlacementArgs = Record.readInt();
1874   bool IsParenTypeId = Record.readInt();
1875
1876   E->CXXNewExprBits.IsGlobalNew = Record.readInt();
1877   E->CXXNewExprBits.ShouldPassAlignment = Record.readInt();
1878   E->CXXNewExprBits.UsualArrayDeleteWantsSize = Record.readInt();
1879   E->CXXNewExprBits.StoredInitializationStyle = Record.readInt();
1880
1881   assert((IsArray == E->isArray()) && "Wrong IsArray!");
1882   assert((HasInit == E->hasInitializer()) && "Wrong HasInit!");
1883   assert((NumPlacementArgs == E->getNumPlacementArgs()) &&
1884          "Wrong NumPlacementArgs!");
1885   assert((IsParenTypeId == E->isParenTypeId()) && "Wrong IsParenTypeId!");
1886   (void)IsArray;
1887   (void)HasInit;
1888   (void)NumPlacementArgs;
1889
1890   E->setOperatorNew(readDeclAs<FunctionDecl>());
1891   E->setOperatorDelete(readDeclAs<FunctionDecl>());
1892   E->AllocatedTypeInfo = readTypeSourceInfo();
1893   if (IsParenTypeId)
1894     E->getTrailingObjects<SourceRange>()[0] = readSourceRange();
1895   E->Range = readSourceRange();
1896   E->DirectInitRange = readSourceRange();
1897
1898   // Install all the subexpressions.
1899   for (CXXNewExpr::raw_arg_iterator I = E->raw_arg_begin(),
1900                                     N = E->raw_arg_end();
1901        I != N; ++I)
1902     *I = Record.readSubStmt();
1903 }
1904
1905 void ASTStmtReader::VisitCXXDeleteExpr(CXXDeleteExpr *E) {
1906   VisitExpr(E);
1907   E->CXXDeleteExprBits.GlobalDelete = Record.readInt();
1908   E->CXXDeleteExprBits.ArrayForm = Record.readInt();
1909   E->CXXDeleteExprBits.ArrayFormAsWritten = Record.readInt();
1910   E->CXXDeleteExprBits.UsualArrayDeleteWantsSize = Record.readInt();
1911   E->OperatorDelete = readDeclAs<FunctionDecl>();
1912   E->Argument = Record.readSubExpr();
1913   E->CXXDeleteExprBits.Loc = readSourceLocation();
1914 }
1915
1916 void ASTStmtReader::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *E) {
1917   VisitExpr(E);
1918
1919   E->Base = Record.readSubExpr();
1920   E->IsArrow = Record.readInt();
1921   E->OperatorLoc = readSourceLocation();
1922   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1923   E->ScopeType = readTypeSourceInfo();
1924   E->ColonColonLoc = readSourceLocation();
1925   E->TildeLoc = readSourceLocation();
1926
1927   IdentifierInfo *II = Record.readIdentifier();
1928   if (II)
1929     E->setDestroyedType(II, readSourceLocation());
1930   else
1931     E->setDestroyedType(readTypeSourceInfo());
1932 }
1933
1934 void ASTStmtReader::VisitExprWithCleanups(ExprWithCleanups *E) {
1935   VisitExpr(E);
1936
1937   unsigned NumObjects = Record.readInt();
1938   assert(NumObjects == E->getNumObjects());
1939   for (unsigned i = 0; i != NumObjects; ++i) {
1940     unsigned CleanupKind = Record.readInt();
1941     ExprWithCleanups::CleanupObject Obj;
1942     if (CleanupKind == COK_Block)
1943       Obj = readDeclAs<BlockDecl>();
1944     else if (CleanupKind == COK_CompoundLiteral)
1945       Obj = cast<CompoundLiteralExpr>(Record.readSubExpr());
1946     else
1947       llvm_unreachable("unexpected cleanup object type");
1948     E->getTrailingObjects<ExprWithCleanups::CleanupObject>()[i] = Obj;
1949   }
1950
1951   E->ExprWithCleanupsBits.CleanupsHaveSideEffects = Record.readInt();
1952   E->SubExpr = Record.readSubExpr();
1953 }
1954
1955 void ASTStmtReader::VisitCXXDependentScopeMemberExpr(
1956     CXXDependentScopeMemberExpr *E) {
1957   VisitExpr(E);
1958
1959   bool HasTemplateKWAndArgsInfo = Record.readInt();
1960   unsigned NumTemplateArgs = Record.readInt();
1961   bool HasFirstQualifierFoundInScope = Record.readInt();
1962
1963   assert((HasTemplateKWAndArgsInfo == E->hasTemplateKWAndArgsInfo()) &&
1964          "Wrong HasTemplateKWAndArgsInfo!");
1965   assert(
1966       (HasFirstQualifierFoundInScope == E->hasFirstQualifierFoundInScope()) &&
1967       "Wrong HasFirstQualifierFoundInScope!");
1968
1969   if (HasTemplateKWAndArgsInfo)
1970     ReadTemplateKWAndArgsInfo(
1971         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
1972         E->getTrailingObjects<TemplateArgumentLoc>(), NumTemplateArgs);
1973
1974   assert((NumTemplateArgs == E->getNumTemplateArgs()) &&
1975          "Wrong NumTemplateArgs!");
1976
1977   E->CXXDependentScopeMemberExprBits.IsArrow = Record.readInt();
1978   E->CXXDependentScopeMemberExprBits.OperatorLoc = readSourceLocation();
1979   E->BaseType = Record.readType();
1980   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
1981   E->Base = Record.readSubExpr();
1982
1983   if (HasFirstQualifierFoundInScope)
1984     *E->getTrailingObjects<NamedDecl *>() = readDeclAs<NamedDecl>();
1985
1986   E->MemberNameInfo = Record.readDeclarationNameInfo();
1987 }
1988
1989 void
1990 ASTStmtReader::VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *E) {
1991   VisitExpr(E);
1992
1993   if (Record.readInt()) // HasTemplateKWAndArgsInfo
1994     ReadTemplateKWAndArgsInfo(
1995         *E->getTrailingObjects<ASTTemplateKWAndArgsInfo>(),
1996         E->getTrailingObjects<TemplateArgumentLoc>(),
1997         /*NumTemplateArgs=*/Record.readInt());
1998
1999   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
2000   E->NameInfo = Record.readDeclarationNameInfo();
2001 }
2002
2003 void
2004 ASTStmtReader::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *E) {
2005   VisitExpr(E);
2006   assert(Record.peekInt() == E->getNumArgs() &&
2007          "Read wrong record during creation ?");
2008   Record.skipInts(1);
2009   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
2010     E->setArg(I, Record.readSubExpr());
2011   E->TypeAndInitForm.setPointer(readTypeSourceInfo());
2012   E->setLParenLoc(readSourceLocation());
2013   E->setRParenLoc(readSourceLocation());
2014   E->TypeAndInitForm.setInt(Record.readInt());
2015 }
2016
2017 void ASTStmtReader::VisitOverloadExpr(OverloadExpr *E) {
2018   VisitExpr(E);
2019
2020   unsigned NumResults = Record.readInt();
2021   bool HasTemplateKWAndArgsInfo = Record.readInt();
2022   assert((E->getNumDecls() == NumResults) && "Wrong NumResults!");
2023   assert((E->hasTemplateKWAndArgsInfo() == HasTemplateKWAndArgsInfo) &&
2024          "Wrong HasTemplateKWAndArgsInfo!");
2025
2026   if (HasTemplateKWAndArgsInfo) {
2027     unsigned NumTemplateArgs = Record.readInt();
2028     ReadTemplateKWAndArgsInfo(*E->getTrailingASTTemplateKWAndArgsInfo(),
2029                               E->getTrailingTemplateArgumentLoc(),
2030                               NumTemplateArgs);
2031     assert((E->getNumTemplateArgs() == NumTemplateArgs) &&
2032            "Wrong NumTemplateArgs!");
2033   }
2034
2035   UnresolvedSet<8> Decls;
2036   for (unsigned I = 0; I != NumResults; ++I) {
2037     auto *D = readDeclAs<NamedDecl>();
2038     auto AS = (AccessSpecifier)Record.readInt();
2039     Decls.addDecl(D, AS);
2040   }
2041
2042   DeclAccessPair *Results = E->getTrailingResults();
2043   UnresolvedSetIterator Iter = Decls.begin();
2044   for (unsigned I = 0; I != NumResults; ++I) {
2045     Results[I] = (Iter + I).getPair();
2046   }
2047
2048   E->NameInfo = Record.readDeclarationNameInfo();
2049   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
2050 }
2051
2052 void ASTStmtReader::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *E) {
2053   VisitOverloadExpr(E);
2054   E->UnresolvedMemberExprBits.IsArrow = Record.readInt();
2055   E->UnresolvedMemberExprBits.HasUnresolvedUsing = Record.readInt();
2056   E->Base = Record.readSubExpr();
2057   E->BaseType = Record.readType();
2058   E->OperatorLoc = readSourceLocation();
2059 }
2060
2061 void ASTStmtReader::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *E) {
2062   VisitOverloadExpr(E);
2063   E->UnresolvedLookupExprBits.RequiresADL = Record.readInt();
2064   E->UnresolvedLookupExprBits.Overloaded = Record.readInt();
2065   E->NamingClass = readDeclAs<CXXRecordDecl>();
2066 }
2067
2068 void ASTStmtReader::VisitTypeTraitExpr(TypeTraitExpr *E) {
2069   VisitExpr(E);
2070   E->TypeTraitExprBits.NumArgs = Record.readInt();
2071   E->TypeTraitExprBits.Kind = Record.readInt();
2072   E->TypeTraitExprBits.Value = Record.readInt();
2073   SourceRange Range = readSourceRange();
2074   E->Loc = Range.getBegin();
2075   E->RParenLoc = Range.getEnd();
2076
2077   auto **Args = E->getTrailingObjects<TypeSourceInfo *>();
2078   for (unsigned I = 0, N = E->getNumArgs(); I != N; ++I)
2079     Args[I] = readTypeSourceInfo();
2080 }
2081
2082 void ASTStmtReader::VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E) {
2083   VisitExpr(E);
2084   E->ATT = (ArrayTypeTrait)Record.readInt();
2085   E->Value = (unsigned int)Record.readInt();
2086   SourceRange Range = readSourceRange();
2087   E->Loc = Range.getBegin();
2088   E->RParen = Range.getEnd();
2089   E->QueriedType = readTypeSourceInfo();
2090   E->Dimension = Record.readSubExpr();
2091 }
2092
2093 void ASTStmtReader::VisitExpressionTraitExpr(ExpressionTraitExpr *E) {
2094   VisitExpr(E);
2095   E->ET = (ExpressionTrait)Record.readInt();
2096   E->Value = (bool)Record.readInt();
2097   SourceRange Range = readSourceRange();
2098   E->QueriedExpression = Record.readSubExpr();
2099   E->Loc = Range.getBegin();
2100   E->RParen = Range.getEnd();
2101 }
2102
2103 void ASTStmtReader::VisitCXXNoexceptExpr(CXXNoexceptExpr *E) {
2104   VisitExpr(E);
2105   E->CXXNoexceptExprBits.Value = Record.readInt();
2106   E->Range = readSourceRange();
2107   E->Operand = Record.readSubExpr();
2108 }
2109
2110 void ASTStmtReader::VisitPackExpansionExpr(PackExpansionExpr *E) {
2111   VisitExpr(E);
2112   E->EllipsisLoc = readSourceLocation();
2113   E->NumExpansions = Record.readInt();
2114   E->Pattern = Record.readSubExpr();
2115 }
2116
2117 void ASTStmtReader::VisitSizeOfPackExpr(SizeOfPackExpr *E) {
2118   VisitExpr(E);
2119   unsigned NumPartialArgs = Record.readInt();
2120   E->OperatorLoc = readSourceLocation();
2121   E->PackLoc = readSourceLocation();
2122   E->RParenLoc = readSourceLocation();
2123   E->Pack = Record.readDeclAs<NamedDecl>();
2124   if (E->isPartiallySubstituted()) {
2125     assert(E->Length == NumPartialArgs);
2126     for (auto *I = E->getTrailingObjects<TemplateArgument>(),
2127               *E = I + NumPartialArgs;
2128          I != E; ++I)
2129       new (I) TemplateArgument(Record.readTemplateArgument());
2130   } else if (!E->isValueDependent()) {
2131     E->Length = Record.readInt();
2132   }
2133 }
2134
2135 void ASTStmtReader::VisitSubstNonTypeTemplateParmExpr(
2136                                               SubstNonTypeTemplateParmExpr *E) {
2137   VisitExpr(E);
2138   E->AssociatedDeclAndRef.setPointer(readDeclAs<Decl>());
2139   E->AssociatedDeclAndRef.setInt(Record.readInt());
2140   E->Index = Record.readInt();
2141   E->PackIndex = Record.readInt();
2142   E->SubstNonTypeTemplateParmExprBits.NameLoc = readSourceLocation();
2143   E->Replacement = Record.readSubExpr();
2144 }
2145
2146 void ASTStmtReader::VisitSubstNonTypeTemplateParmPackExpr(
2147                                           SubstNonTypeTemplateParmPackExpr *E) {
2148   VisitExpr(E);
2149   E->AssociatedDecl = readDeclAs<Decl>();
2150   E->Index = Record.readInt();
2151   TemplateArgument ArgPack = Record.readTemplateArgument();
2152   if (ArgPack.getKind() != TemplateArgument::Pack)
2153     return;
2154
2155   E->Arguments = ArgPack.pack_begin();
2156   E->NumArguments = ArgPack.pack_size();
2157   E->NameLoc = readSourceLocation();
2158 }
2159
2160 void ASTStmtReader::VisitFunctionParmPackExpr(FunctionParmPackExpr *E) {
2161   VisitExpr(E);
2162   E->NumParameters = Record.readInt();
2163   E->ParamPack = readDeclAs<ParmVarDecl>();
2164   E->NameLoc = readSourceLocation();
2165   auto **Parms = E->getTrailingObjects<VarDecl *>();
2166   for (unsigned i = 0, n = E->NumParameters; i != n; ++i)
2167     Parms[i] = readDeclAs<VarDecl>();
2168 }
2169
2170 void ASTStmtReader::VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E) {
2171   VisitExpr(E);
2172   bool HasMaterialzedDecl = Record.readInt();
2173   if (HasMaterialzedDecl)
2174     E->State = cast<LifetimeExtendedTemporaryDecl>(Record.readDecl());
2175   else
2176     E->State = Record.readSubExpr();
2177 }
2178
2179 void ASTStmtReader::VisitCXXFoldExpr(CXXFoldExpr *E) {
2180   VisitExpr(E);
2181   E->LParenLoc = readSourceLocation();
2182   E->EllipsisLoc = readSourceLocation();
2183   E->RParenLoc = readSourceLocation();
2184   E->NumExpansions = Record.readInt();
2185   E->SubExprs[0] = Record.readSubExpr();
2186   E->SubExprs[1] = Record.readSubExpr();
2187   E->SubExprs[2] = Record.readSubExpr();
2188   E->Opcode = (BinaryOperatorKind)Record.readInt();
2189 }
2190
2191 void ASTStmtReader::VisitCXXParenListInitExpr(CXXParenListInitExpr *E) {
2192   VisitExpr(E);
2193   unsigned ExpectedNumExprs = Record.readInt();
2194   assert(E->NumExprs == ExpectedNumExprs &&
2195          "expected number of expressions does not equal the actual number of "
2196          "serialized expressions.");
2197   E->NumUserSpecifiedExprs = Record.readInt();
2198   E->InitLoc = readSourceLocation();
2199   E->LParenLoc = readSourceLocation();
2200   E->RParenLoc = readSourceLocation();
2201   for (unsigned I = 0; I < ExpectedNumExprs; I++)
2202     E->getTrailingObjects<Expr *>()[I] = Record.readSubExpr();
2203
2204   bool HasArrayFillerOrUnionDecl = Record.readBool();
2205   if (HasArrayFillerOrUnionDecl) {
2206     bool HasArrayFiller = Record.readBool();
2207     if (HasArrayFiller) {
2208       E->setArrayFiller(Record.readSubExpr());
2209     } else {
2210       E->setInitializedFieldInUnion(readDeclAs<FieldDecl>());
2211     }
2212   }
2213   E->updateDependence();
2214 }
2215
2216 void ASTStmtReader::VisitOpaqueValueExpr(OpaqueValueExpr *E) {
2217   VisitExpr(E);
2218   E->SourceExpr = Record.readSubExpr();
2219   E->OpaqueValueExprBits.Loc = readSourceLocation();
2220   E->setIsUnique(Record.readInt());
2221 }
2222
2223 void ASTStmtReader::VisitTypoExpr(TypoExpr *E) {
2224   llvm_unreachable("Cannot read TypoExpr nodes");
2225 }
2226
2227 void ASTStmtReader::VisitRecoveryExpr(RecoveryExpr *E) {
2228   VisitExpr(E);
2229   unsigned NumArgs = Record.readInt();
2230   E->BeginLoc = readSourceLocation();
2231   E->EndLoc = readSourceLocation();
2232   assert((NumArgs + 0LL ==
2233           std::distance(E->children().begin(), E->children().end())) &&
2234          "Wrong NumArgs!");
2235   (void)NumArgs;
2236   for (Stmt *&Child : E->children())
2237     Child = Record.readSubStmt();
2238 }
2239
2240 //===----------------------------------------------------------------------===//
2241 // Microsoft Expressions and Statements
2242 //===----------------------------------------------------------------------===//
2243 void ASTStmtReader::VisitMSPropertyRefExpr(MSPropertyRefExpr *E) {
2244   VisitExpr(E);
2245   E->IsArrow = (Record.readInt() != 0);
2246   E->BaseExpr = Record.readSubExpr();
2247   E->QualifierLoc = Record.readNestedNameSpecifierLoc();
2248   E->MemberLoc = readSourceLocation();
2249   E->TheDecl = readDeclAs<MSPropertyDecl>();
2250 }
2251
2252 void ASTStmtReader::VisitMSPropertySubscriptExpr(MSPropertySubscriptExpr *E) {
2253   VisitExpr(E);
2254   E->setBase(Record.readSubExpr());
2255   E->setIdx(Record.readSubExpr());
2256   E->setRBracketLoc(readSourceLocation());
2257 }
2258
2259 void ASTStmtReader::VisitCXXUuidofExpr(CXXUuidofExpr *E) {
2260   VisitExpr(E);
2261   E->setSourceRange(readSourceRange());
2262   E->Guid = readDeclAs<MSGuidDecl>();
2263   if (E->isTypeOperand())
2264     E->Operand = readTypeSourceInfo();
2265   else
2266     E->Operand = Record.readSubExpr();
2267 }
2268
2269 void ASTStmtReader::VisitSEHLeaveStmt(SEHLeaveStmt *S) {
2270   VisitStmt(S);
2271   S->setLeaveLoc(readSourceLocation());
2272 }
2273
2274 void ASTStmtReader::VisitSEHExceptStmt(SEHExceptStmt *S) {
2275   VisitStmt(S);
2276   S->Loc = readSourceLocation();
2277   S->Children[SEHExceptStmt::FILTER_EXPR] = Record.readSubStmt();
2278   S->Children[SEHExceptStmt::BLOCK] = Record.readSubStmt();
2279 }
2280
2281 void ASTStmtReader::VisitSEHFinallyStmt(SEHFinallyStmt *S) {
2282   VisitStmt(S);
2283   S->Loc = readSourceLocation();
2284   S->Block = Record.readSubStmt();
2285 }
2286
2287 void ASTStmtReader::VisitSEHTryStmt(SEHTryStmt *S) {
2288   VisitStmt(S);
2289   S->IsCXXTry = Record.readInt();
2290   S->TryLoc = readSourceLocation();
2291   S->Children[SEHTryStmt::TRY] = Record.readSubStmt();
2292   S->Children[SEHTryStmt::HANDLER] = Record.readSubStmt();
2293 }
2294
2295 //===----------------------------------------------------------------------===//
2296 // CUDA Expressions and Statements
2297 //===----------------------------------------------------------------------===//
2298
2299 void ASTStmtReader::VisitCUDAKernelCallExpr(CUDAKernelCallExpr *E) {
2300   VisitCallExpr(E);
2301   E->setPreArg(CUDAKernelCallExpr::CONFIG, Record.readSubExpr());
2302 }
2303
2304 //===----------------------------------------------------------------------===//
2305 // OpenCL Expressions and Statements.
2306 //===----------------------------------------------------------------------===//
2307 void ASTStmtReader::VisitAsTypeExpr(AsTypeExpr *E) {
2308   VisitExpr(E);
2309   E->BuiltinLoc = readSourceLocation();
2310   E->RParenLoc = readSourceLocation();
2311   E->SrcExpr = Record.readSubExpr();
2312 }
2313
2314 //===----------------------------------------------------------------------===//
2315 // OpenMP Directives.
2316 //===----------------------------------------------------------------------===//
2317
2318 void ASTStmtReader::VisitOMPCanonicalLoop(OMPCanonicalLoop *S) {
2319   VisitStmt(S);
2320   for (Stmt *&SubStmt : S->SubStmts)
2321     SubStmt = Record.readSubStmt();
2322 }
2323
2324 void ASTStmtReader::VisitOMPExecutableDirective(OMPExecutableDirective *E) {
2325   Record.readOMPChildren(E->Data);
2326   E->setLocStart(readSourceLocation());
2327   E->setLocEnd(readSourceLocation());
2328 }
2329
2330 void ASTStmtReader::VisitOMPLoopBasedDirective(OMPLoopBasedDirective *D) {
2331   VisitStmt(D);
2332   // Field CollapsedNum was read in ReadStmtFromStream.
2333   Record.skipInts(1);
2334   VisitOMPExecutableDirective(D);
2335 }
2336
2337 void ASTStmtReader::VisitOMPLoopDirective(OMPLoopDirective *D) {
2338   VisitOMPLoopBasedDirective(D);
2339 }
2340
2341 void ASTStmtReader::VisitOMPMetaDirective(OMPMetaDirective *D) {
2342   VisitStmt(D);
2343   // The NumClauses field was read in ReadStmtFromStream.
2344   Record.skipInts(1);
2345   VisitOMPExecutableDirective(D);
2346 }
2347
2348 void ASTStmtReader::VisitOMPParallelDirective(OMPParallelDirective *D) {
2349   VisitStmt(D);
2350   VisitOMPExecutableDirective(D);
2351   D->setHasCancel(Record.readBool());
2352 }
2353
2354 void ASTStmtReader::VisitOMPSimdDirective(OMPSimdDirective *D) {
2355   VisitOMPLoopDirective(D);
2356 }
2357
2358 void ASTStmtReader::VisitOMPLoopTransformationDirective(
2359     OMPLoopTransformationDirective *D) {
2360   VisitOMPLoopBasedDirective(D);
2361   D->setNumGeneratedLoops(Record.readUInt32());
2362 }
2363
2364 void ASTStmtReader::VisitOMPTileDirective(OMPTileDirective *D) {
2365   VisitOMPLoopTransformationDirective(D);
2366 }
2367
2368 void ASTStmtReader::VisitOMPUnrollDirective(OMPUnrollDirective *D) {
2369   VisitOMPLoopTransformationDirective(D);
2370 }
2371
2372 void ASTStmtReader::VisitOMPForDirective(OMPForDirective *D) {
2373   VisitOMPLoopDirective(D);
2374   D->setHasCancel(Record.readBool());
2375 }
2376
2377 void ASTStmtReader::VisitOMPForSimdDirective(OMPForSimdDirective *D) {
2378   VisitOMPLoopDirective(D);
2379 }
2380
2381 void ASTStmtReader::VisitOMPSectionsDirective(OMPSectionsDirective *D) {
2382   VisitStmt(D);
2383   VisitOMPExecutableDirective(D);
2384   D->setHasCancel(Record.readBool());
2385 }
2386
2387 void ASTStmtReader::VisitOMPSectionDirective(OMPSectionDirective *D) {
2388   VisitStmt(D);
2389   VisitOMPExecutableDirective(D);
2390   D->setHasCancel(Record.readBool());
2391 }
2392
2393 void ASTStmtReader::VisitOMPSingleDirective(OMPSingleDirective *D) {
2394   VisitStmt(D);
2395   VisitOMPExecutableDirective(D);
2396 }
2397
2398 void ASTStmtReader::VisitOMPMasterDirective(OMPMasterDirective *D) {
2399   VisitStmt(D);
2400   VisitOMPExecutableDirective(D);
2401 }
2402
2403 void ASTStmtReader::VisitOMPCriticalDirective(OMPCriticalDirective *D) {
2404   VisitStmt(D);
2405   VisitOMPExecutableDirective(D);
2406   D->DirName = Record.readDeclarationNameInfo();
2407 }
2408
2409 void ASTStmtReader::VisitOMPParallelForDirective(OMPParallelForDirective *D) {
2410   VisitOMPLoopDirective(D);
2411   D->setHasCancel(Record.readBool());
2412 }
2413
2414 void ASTStmtReader::VisitOMPParallelForSimdDirective(
2415     OMPParallelForSimdDirective *D) {
2416   VisitOMPLoopDirective(D);
2417 }
2418
2419 void ASTStmtReader::VisitOMPParallelMasterDirective(
2420     OMPParallelMasterDirective *D) {
2421   VisitStmt(D);
2422   VisitOMPExecutableDirective(D);
2423 }
2424
2425 void ASTStmtReader::VisitOMPParallelMaskedDirective(
2426     OMPParallelMaskedDirective *D) {
2427   VisitStmt(D);
2428   VisitOMPExecutableDirective(D);
2429 }
2430
2431 void ASTStmtReader::VisitOMPParallelSectionsDirective(
2432     OMPParallelSectionsDirective *D) {
2433   VisitStmt(D);
2434   VisitOMPExecutableDirective(D);
2435   D->setHasCancel(Record.readBool());
2436 }
2437
2438 void ASTStmtReader::VisitOMPTaskDirective(OMPTaskDirective *D) {
2439   VisitStmt(D);
2440   VisitOMPExecutableDirective(D);
2441   D->setHasCancel(Record.readBool());
2442 }
2443
2444 void ASTStmtReader::VisitOMPTaskyieldDirective(OMPTaskyieldDirective *D) {
2445   VisitStmt(D);
2446   VisitOMPExecutableDirective(D);
2447 }
2448
2449 void ASTStmtReader::VisitOMPBarrierDirective(OMPBarrierDirective *D) {
2450   VisitStmt(D);
2451   VisitOMPExecutableDirective(D);
2452 }
2453
2454 void ASTStmtReader::VisitOMPTaskwaitDirective(OMPTaskwaitDirective *D) {
2455   VisitStmt(D);
2456   // The NumClauses field was read in ReadStmtFromStream.
2457   Record.skipInts(1);
2458   VisitOMPExecutableDirective(D);
2459 }
2460
2461 void ASTStmtReader::VisitOMPErrorDirective(OMPErrorDirective *D) {
2462   VisitStmt(D);
2463   // The NumClauses field was read in ReadStmtFromStream.
2464   Record.skipInts(1);
2465   VisitOMPExecutableDirective(D);
2466 }
2467
2468 void ASTStmtReader::VisitOMPTaskgroupDirective(OMPTaskgroupDirective *D) {
2469   VisitStmt(D);
2470   VisitOMPExecutableDirective(D);
2471 }
2472
2473 void ASTStmtReader::VisitOMPFlushDirective(OMPFlushDirective *D) {
2474   VisitStmt(D);
2475   VisitOMPExecutableDirective(D);
2476 }
2477
2478 void ASTStmtReader::VisitOMPDepobjDirective(OMPDepobjDirective *D) {
2479   VisitStmt(D);
2480   VisitOMPExecutableDirective(D);
2481 }
2482
2483 void ASTStmtReader::VisitOMPScanDirective(OMPScanDirective *D) {
2484   VisitStmt(D);
2485   VisitOMPExecutableDirective(D);
2486 }
2487
2488 void ASTStmtReader::VisitOMPOrderedDirective(OMPOrderedDirective *D) {
2489   VisitStmt(D);
2490   VisitOMPExecutableDirective(D);
2491 }
2492
2493 void ASTStmtReader::VisitOMPAtomicDirective(OMPAtomicDirective *D) {
2494   VisitStmt(D);
2495   VisitOMPExecutableDirective(D);
2496   D->Flags.IsXLHSInRHSPart = Record.readBool() ? 1 : 0;
2497   D->Flags.IsPostfixUpdate = Record.readBool() ? 1 : 0;
2498   D->Flags.IsFailOnly = Record.readBool() ? 1 : 0;
2499 }
2500
2501 void ASTStmtReader::VisitOMPTargetDirective(OMPTargetDirective *D) {
2502   VisitStmt(D);
2503   VisitOMPExecutableDirective(D);
2504 }
2505
2506 void ASTStmtReader::VisitOMPTargetDataDirective(OMPTargetDataDirective *D) {
2507   VisitStmt(D);
2508   VisitOMPExecutableDirective(D);
2509 }
2510
2511 void ASTStmtReader::VisitOMPTargetEnterDataDirective(
2512     OMPTargetEnterDataDirective *D) {
2513   VisitStmt(D);
2514   VisitOMPExecutableDirective(D);
2515 }
2516
2517 void ASTStmtReader::VisitOMPTargetExitDataDirective(
2518     OMPTargetExitDataDirective *D) {
2519   VisitStmt(D);
2520   VisitOMPExecutableDirective(D);
2521 }
2522
2523 void ASTStmtReader::VisitOMPTargetParallelDirective(
2524     OMPTargetParallelDirective *D) {
2525   VisitStmt(D);
2526   VisitOMPExecutableDirective(D);
2527   D->setHasCancel(Record.readBool());
2528 }
2529
2530 void ASTStmtReader::VisitOMPTargetParallelForDirective(
2531     OMPTargetParallelForDirective *D) {
2532   VisitOMPLoopDirective(D);
2533   D->setHasCancel(Record.readBool());
2534 }
2535
2536 void ASTStmtReader::VisitOMPTeamsDirective(OMPTeamsDirective *D) {
2537   VisitStmt(D);
2538   VisitOMPExecutableDirective(D);
2539 }
2540
2541 void ASTStmtReader::VisitOMPCancellationPointDirective(
2542     OMPCancellationPointDirective *D) {
2543   VisitStmt(D);
2544   VisitOMPExecutableDirective(D);
2545   D->setCancelRegion(Record.readEnum<OpenMPDirectiveKind>());
2546 }
2547
2548 void ASTStmtReader::VisitOMPCancelDirective(OMPCancelDirective *D) {
2549   VisitStmt(D);
2550   VisitOMPExecutableDirective(D);
2551   D->setCancelRegion(Record.readEnum<OpenMPDirectiveKind>());
2552 }
2553
2554 void ASTStmtReader::VisitOMPTaskLoopDirective(OMPTaskLoopDirective *D) {
2555   VisitOMPLoopDirective(D);
2556   D->setHasCancel(Record.readBool());
2557 }
2558
2559 void ASTStmtReader::VisitOMPTaskLoopSimdDirective(OMPTaskLoopSimdDirective *D) {
2560   VisitOMPLoopDirective(D);
2561 }
2562
2563 void ASTStmtReader::VisitOMPMasterTaskLoopDirective(
2564     OMPMasterTaskLoopDirective *D) {
2565   VisitOMPLoopDirective(D);
2566   D->setHasCancel(Record.readBool());
2567 }
2568
2569 void ASTStmtReader::VisitOMPMaskedTaskLoopDirective(
2570     OMPMaskedTaskLoopDirective *D) {
2571   VisitOMPLoopDirective(D);
2572   D->setHasCancel(Record.readBool());
2573 }
2574
2575 void ASTStmtReader::VisitOMPMasterTaskLoopSimdDirective(
2576     OMPMasterTaskLoopSimdDirective *D) {
2577   VisitOMPLoopDirective(D);
2578 }
2579
2580 void ASTStmtReader::VisitOMPMaskedTaskLoopSimdDirective(
2581     OMPMaskedTaskLoopSimdDirective *D) {
2582   VisitOMPLoopDirective(D);
2583 }
2584
2585 void ASTStmtReader::VisitOMPParallelMasterTaskLoopDirective(
2586     OMPParallelMasterTaskLoopDirective *D) {
2587   VisitOMPLoopDirective(D);
2588   D->setHasCancel(Record.readBool());
2589 }
2590
2591 void ASTStmtReader::VisitOMPParallelMaskedTaskLoopDirective(
2592     OMPParallelMaskedTaskLoopDirective *D) {
2593   VisitOMPLoopDirective(D);
2594   D->setHasCancel(Record.readBool());
2595 }
2596
2597 void ASTStmtReader::VisitOMPParallelMasterTaskLoopSimdDirective(
2598     OMPParallelMasterTaskLoopSimdDirective *D) {
2599   VisitOMPLoopDirective(D);
2600 }
2601
2602 void ASTStmtReader::VisitOMPParallelMaskedTaskLoopSimdDirective(
2603     OMPParallelMaskedTaskLoopSimdDirective *D) {
2604   VisitOMPLoopDirective(D);
2605 }
2606
2607 void ASTStmtReader::VisitOMPDistributeDirective(OMPDistributeDirective *D) {
2608   VisitOMPLoopDirective(D);
2609 }
2610
2611 void ASTStmtReader::VisitOMPTargetUpdateDirective(OMPTargetUpdateDirective *D) {
2612   VisitStmt(D);
2613   VisitOMPExecutableDirective(D);
2614 }
2615
2616 void ASTStmtReader::VisitOMPDistributeParallelForDirective(
2617     OMPDistributeParallelForDirective *D) {
2618   VisitOMPLoopDirective(D);
2619   D->setHasCancel(Record.readBool());
2620 }
2621
2622 void ASTStmtReader::VisitOMPDistributeParallelForSimdDirective(
2623     OMPDistributeParallelForSimdDirective *D) {
2624   VisitOMPLoopDirective(D);
2625 }
2626
2627 void ASTStmtReader::VisitOMPDistributeSimdDirective(
2628     OMPDistributeSimdDirective *D) {
2629   VisitOMPLoopDirective(D);
2630 }
2631
2632 void ASTStmtReader::VisitOMPTargetParallelForSimdDirective(
2633     OMPTargetParallelForSimdDirective *D) {
2634   VisitOMPLoopDirective(D);
2635 }
2636
2637 void ASTStmtReader::VisitOMPTargetSimdDirective(OMPTargetSimdDirective *D) {
2638   VisitOMPLoopDirective(D);
2639 }
2640
2641 void ASTStmtReader::VisitOMPTeamsDistributeDirective(
2642     OMPTeamsDistributeDirective *D) {
2643   VisitOMPLoopDirective(D);
2644 }
2645
2646 void ASTStmtReader::VisitOMPTeamsDistributeSimdDirective(
2647     OMPTeamsDistributeSimdDirective *D) {
2648   VisitOMPLoopDirective(D);
2649 }
2650
2651 void ASTStmtReader::VisitOMPTeamsDistributeParallelForSimdDirective(
2652     OMPTeamsDistributeParallelForSimdDirective *D) {
2653   VisitOMPLoopDirective(D);
2654 }
2655
2656 void ASTStmtReader::VisitOMPTeamsDistributeParallelForDirective(
2657     OMPTeamsDistributeParallelForDirective *D) {
2658   VisitOMPLoopDirective(D);
2659   D->setHasCancel(Record.readBool());
2660 }
2661
2662 void ASTStmtReader::VisitOMPTargetTeamsDirective(OMPTargetTeamsDirective *D) {
2663   VisitStmt(D);
2664   VisitOMPExecutableDirective(D);
2665 }
2666
2667 void ASTStmtReader::VisitOMPTargetTeamsDistributeDirective(
2668     OMPTargetTeamsDistributeDirective *D) {
2669   VisitOMPLoopDirective(D);
2670 }
2671
2672 void ASTStmtReader::VisitOMPTargetTeamsDistributeParallelForDirective(
2673     OMPTargetTeamsDistributeParallelForDirective *D) {
2674   VisitOMPLoopDirective(D);
2675   D->setHasCancel(Record.readBool());
2676 }
2677
2678 void ASTStmtReader::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
2679     OMPTargetTeamsDistributeParallelForSimdDirective *D) {
2680   VisitOMPLoopDirective(D);
2681 }
2682
2683 void ASTStmtReader::VisitOMPTargetTeamsDistributeSimdDirective(
2684     OMPTargetTeamsDistributeSimdDirective *D) {
2685   VisitOMPLoopDirective(D);
2686 }
2687
2688 void ASTStmtReader::VisitOMPInteropDirective(OMPInteropDirective *D) {
2689   VisitStmt(D);
2690   VisitOMPExecutableDirective(D);
2691 }
2692
2693 void ASTStmtReader::VisitOMPDispatchDirective(OMPDispatchDirective *D) {
2694   VisitStmt(D);
2695   VisitOMPExecutableDirective(D);
2696   D->setTargetCallLoc(Record.readSourceLocation());
2697 }
2698
2699 void ASTStmtReader::VisitOMPMaskedDirective(OMPMaskedDirective *D) {
2700   VisitStmt(D);
2701   VisitOMPExecutableDirective(D);
2702 }
2703
2704 void ASTStmtReader::VisitOMPGenericLoopDirective(OMPGenericLoopDirective *D) {
2705   VisitOMPLoopDirective(D);
2706 }
2707
2708 void ASTStmtReader::VisitOMPTeamsGenericLoopDirective(
2709     OMPTeamsGenericLoopDirective *D) {
2710   VisitOMPLoopDirective(D);
2711 }
2712
2713 void ASTStmtReader::VisitOMPTargetTeamsGenericLoopDirective(
2714     OMPTargetTeamsGenericLoopDirective *D) {
2715   VisitOMPLoopDirective(D);
2716 }
2717
2718 void ASTStmtReader::VisitOMPParallelGenericLoopDirective(
2719     OMPParallelGenericLoopDirective *D) {
2720   VisitOMPLoopDirective(D);
2721 }
2722
2723 void ASTStmtReader::VisitOMPTargetParallelGenericLoopDirective(
2724     OMPTargetParallelGenericLoopDirective *D) {
2725   VisitOMPLoopDirective(D);
2726 }
2727
2728 //===----------------------------------------------------------------------===//
2729 // ASTReader Implementation
2730 //===----------------------------------------------------------------------===//
2731
2732 Stmt *ASTReader::ReadStmt(ModuleFile &F) {
2733   switch (ReadingKind) {
2734   case Read_None:
2735     llvm_unreachable("should not call this when not reading anything");
2736   case Read_Decl:
2737   case Read_Type:
2738     return ReadStmtFromStream(F);
2739   case Read_Stmt:
2740     return ReadSubStmt();
2741   }
2742
2743   llvm_unreachable("ReadingKind not set ?");
2744 }
2745
2746 Expr *ASTReader::ReadExpr(ModuleFile &F) {
2747   return cast_or_null<Expr>(ReadStmt(F));
2748 }
2749
2750 Expr *ASTReader::ReadSubExpr() {
2751   return cast_or_null<Expr>(ReadSubStmt());
2752 }
2753
2754 // Within the bitstream, expressions are stored in Reverse Polish
2755 // Notation, with each of the subexpressions preceding the
2756 // expression they are stored in. Subexpressions are stored from last to first.
2757 // To evaluate expressions, we continue reading expressions and placing them on
2758 // the stack, with expressions having operands removing those operands from the
2759 // stack. Evaluation terminates when we see a STMT_STOP record, and
2760 // the single remaining expression on the stack is our result.
2761 Stmt *ASTReader::ReadStmtFromStream(ModuleFile &F) {
2762   ReadingKindTracker ReadingKind(Read_Stmt, *this);
2763   llvm::BitstreamCursor &Cursor = F.DeclsCursor;
2764
2765   // Map of offset to previously deserialized stmt. The offset points
2766   // just after the stmt record.
2767   llvm::DenseMap<uint64_t, Stmt *> StmtEntries;
2768
2769 #ifndef NDEBUG
2770   unsigned PrevNumStmts = StmtStack.size();
2771 #endif
2772
2773   ASTRecordReader Record(*this, F);
2774   ASTStmtReader Reader(Record, Cursor);
2775   Stmt::EmptyShell Empty;
2776
2777   while (true) {
2778     llvm::Expected<llvm::BitstreamEntry> MaybeEntry =
2779         Cursor.advanceSkippingSubblocks();
2780     if (!MaybeEntry) {
2781       Error(toString(MaybeEntry.takeError()));
2782       return nullptr;
2783     }
2784     llvm::BitstreamEntry Entry = MaybeEntry.get();
2785
2786     switch (Entry.Kind) {
2787     case llvm::BitstreamEntry::SubBlock: // Handled for us already.
2788     case llvm::BitstreamEntry::Error:
2789       Error("malformed block record in AST file");
2790       return nullptr;
2791     case llvm::BitstreamEntry::EndBlock:
2792       goto Done;
2793     case llvm::BitstreamEntry::Record:
2794       // The interesting case.
2795       break;
2796     }
2797
2798     ASTContext &Context = getContext();
2799     Stmt *S = nullptr;
2800     bool Finished = false;
2801     bool IsStmtReference = false;
2802     Expected<unsigned> MaybeStmtCode = Record.readRecord(Cursor, Entry.ID);
2803     if (!MaybeStmtCode) {
2804       Error(toString(MaybeStmtCode.takeError()));
2805       return nullptr;
2806     }
2807     switch ((StmtCode)MaybeStmtCode.get()) {
2808     case STMT_STOP:
2809       Finished = true;
2810       break;
2811
2812     case STMT_REF_PTR:
2813       IsStmtReference = true;
2814       assert(StmtEntries.contains(Record[0]) &&
2815              "No stmt was recorded for this offset reference!");
2816       S = StmtEntries[Record.readInt()];
2817       break;
2818
2819     case STMT_NULL_PTR:
2820       S = nullptr;
2821       break;
2822
2823     case STMT_NULL:
2824       S = new (Context) NullStmt(Empty);
2825       break;
2826
2827     case STMT_COMPOUND:
2828       S = CompoundStmt::CreateEmpty(
2829           Context, /*NumStmts=*/Record[ASTStmtReader::NumStmtFields],
2830           /*HasFPFeatures=*/Record[ASTStmtReader::NumStmtFields + 1]);
2831       break;
2832
2833     case STMT_CASE:
2834       S = CaseStmt::CreateEmpty(
2835           Context,
2836           /*CaseStmtIsGNURange*/ Record[ASTStmtReader::NumStmtFields + 3]);
2837       break;
2838
2839     case STMT_DEFAULT:
2840       S = new (Context) DefaultStmt(Empty);
2841       break;
2842
2843     case STMT_LABEL:
2844       S = new (Context) LabelStmt(Empty);
2845       break;
2846
2847     case STMT_ATTRIBUTED:
2848       S = AttributedStmt::CreateEmpty(
2849         Context,
2850         /*NumAttrs*/Record[ASTStmtReader::NumStmtFields]);
2851       break;
2852
2853     case STMT_IF:
2854       S = IfStmt::CreateEmpty(
2855           Context,
2856           /* HasElse=*/Record[ASTStmtReader::NumStmtFields],
2857           /* HasVar=*/Record[ASTStmtReader::NumStmtFields + 1],
2858           /* HasInit=*/Record[ASTStmtReader::NumStmtFields + 2]);
2859       break;
2860
2861     case STMT_SWITCH:
2862       S = SwitchStmt::CreateEmpty(
2863           Context,
2864           /* HasInit=*/Record[ASTStmtReader::NumStmtFields],
2865           /* HasVar=*/Record[ASTStmtReader::NumStmtFields + 1]);
2866       break;
2867
2868     case STMT_WHILE:
2869       S = WhileStmt::CreateEmpty(
2870           Context,
2871           /* HasVar=*/Record[ASTStmtReader::NumStmtFields]);
2872       break;
2873
2874     case STMT_DO:
2875       S = new (Context) DoStmt(Empty);
2876       break;
2877
2878     case STMT_FOR:
2879       S = new (Context) ForStmt(Empty);
2880       break;
2881
2882     case STMT_GOTO:
2883       S = new (Context) GotoStmt(Empty);
2884       break;
2885
2886     case STMT_INDIRECT_GOTO:
2887       S = new (Context) IndirectGotoStmt(Empty);
2888       break;
2889
2890     case STMT_CONTINUE:
2891       S = new (Context) ContinueStmt(Empty);
2892       break;
2893
2894     case STMT_BREAK:
2895       S = new (Context) BreakStmt(Empty);
2896       break;
2897
2898     case STMT_RETURN:
2899       S = ReturnStmt::CreateEmpty(
2900           Context, /* HasNRVOCandidate=*/Record[ASTStmtReader::NumStmtFields]);
2901       break;
2902
2903     case STMT_DECL:
2904       S = new (Context) DeclStmt(Empty);
2905       break;
2906
2907     case STMT_GCCASM:
2908       S = new (Context) GCCAsmStmt(Empty);
2909       break;
2910
2911     case STMT_MSASM:
2912       S = new (Context) MSAsmStmt(Empty);
2913       break;
2914
2915     case STMT_CAPTURED:
2916       S = CapturedStmt::CreateDeserialized(
2917           Context, Record[ASTStmtReader::NumStmtFields]);
2918       break;
2919
2920     case EXPR_CONSTANT:
2921       S = ConstantExpr::CreateEmpty(
2922           Context, static_cast<ConstantExpr::ResultStorageKind>(
2923                        /*StorageKind=*/Record[ASTStmtReader::NumExprFields]));
2924       break;
2925
2926     case EXPR_SYCL_UNIQUE_STABLE_NAME:
2927       S = SYCLUniqueStableNameExpr::CreateEmpty(Context);
2928       break;
2929
2930     case EXPR_PREDEFINED:
2931       S = PredefinedExpr::CreateEmpty(
2932           Context,
2933           /*HasFunctionName*/ Record[ASTStmtReader::NumExprFields]);
2934       break;
2935
2936     case EXPR_DECL_REF:
2937       S = DeclRefExpr::CreateEmpty(
2938           Context,
2939           /*HasQualifier=*/Record[ASTStmtReader::NumExprFields],
2940           /*HasFoundDecl=*/Record[ASTStmtReader::NumExprFields + 1],
2941           /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields + 2],
2942           /*NumTemplateArgs=*/
2943           Record[ASTStmtReader::NumExprFields + 2]
2944               ? Record[ASTStmtReader::NumExprFields + 7]
2945               : 0);
2946       break;
2947
2948     case EXPR_INTEGER_LITERAL:
2949       S = IntegerLiteral::Create(Context, Empty);
2950       break;
2951
2952     case EXPR_FIXEDPOINT_LITERAL:
2953       S = FixedPointLiteral::Create(Context, Empty);
2954       break;
2955
2956     case EXPR_FLOATING_LITERAL:
2957       S = FloatingLiteral::Create(Context, Empty);
2958       break;
2959
2960     case EXPR_IMAGINARY_LITERAL:
2961       S = new (Context) ImaginaryLiteral(Empty);
2962       break;
2963
2964     case EXPR_STRING_LITERAL:
2965       S = StringLiteral::CreateEmpty(
2966           Context,
2967           /* NumConcatenated=*/Record[ASTStmtReader::NumExprFields],
2968           /* Length=*/Record[ASTStmtReader::NumExprFields + 1],
2969           /* CharByteWidth=*/Record[ASTStmtReader::NumExprFields + 2]);
2970       break;
2971
2972     case EXPR_CHARACTER_LITERAL:
2973       S = new (Context) CharacterLiteral(Empty);
2974       break;
2975
2976     case EXPR_PAREN:
2977       S = new (Context) ParenExpr(Empty);
2978       break;
2979
2980     case EXPR_PAREN_LIST:
2981       S = ParenListExpr::CreateEmpty(
2982           Context,
2983           /* NumExprs=*/Record[ASTStmtReader::NumExprFields]);
2984       break;
2985
2986     case EXPR_UNARY_OPERATOR:
2987       S = UnaryOperator::CreateEmpty(Context,
2988                                      Record[ASTStmtReader::NumExprFields]);
2989       break;
2990
2991     case EXPR_OFFSETOF:
2992       S = OffsetOfExpr::CreateEmpty(Context,
2993                                     Record[ASTStmtReader::NumExprFields],
2994                                     Record[ASTStmtReader::NumExprFields + 1]);
2995       break;
2996
2997     case EXPR_SIZEOF_ALIGN_OF:
2998       S = new (Context) UnaryExprOrTypeTraitExpr(Empty);
2999       break;
3000
3001     case EXPR_ARRAY_SUBSCRIPT:
3002       S = new (Context) ArraySubscriptExpr(Empty);
3003       break;
3004
3005     case EXPR_MATRIX_SUBSCRIPT:
3006       S = new (Context) MatrixSubscriptExpr(Empty);
3007       break;
3008
3009     case EXPR_OMP_ARRAY_SECTION:
3010       S = new (Context) OMPArraySectionExpr(Empty);
3011       break;
3012
3013     case EXPR_OMP_ARRAY_SHAPING:
3014       S = OMPArrayShapingExpr::CreateEmpty(
3015           Context, Record[ASTStmtReader::NumExprFields]);
3016       break;
3017
3018     case EXPR_OMP_ITERATOR:
3019       S = OMPIteratorExpr::CreateEmpty(Context,
3020                                        Record[ASTStmtReader::NumExprFields]);
3021       break;
3022
3023     case EXPR_CALL:
3024       S = CallExpr::CreateEmpty(
3025           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields],
3026           /*HasFPFeatures=*/Record[ASTStmtReader::NumExprFields + 1], Empty);
3027       break;
3028
3029     case EXPR_RECOVERY:
3030       S = RecoveryExpr::CreateEmpty(
3031           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields]);
3032       break;
3033
3034     case EXPR_MEMBER:
3035       S = MemberExpr::CreateEmpty(Context, Record[ASTStmtReader::NumExprFields],
3036                                   Record[ASTStmtReader::NumExprFields + 1],
3037                                   Record[ASTStmtReader::NumExprFields + 2],
3038                                   Record[ASTStmtReader::NumExprFields + 3]);
3039       break;
3040
3041     case EXPR_BINARY_OPERATOR:
3042       S = BinaryOperator::CreateEmpty(Context,
3043                                       Record[ASTStmtReader::NumExprFields]);
3044       break;
3045
3046     case EXPR_COMPOUND_ASSIGN_OPERATOR:
3047       S = CompoundAssignOperator::CreateEmpty(
3048           Context, Record[ASTStmtReader::NumExprFields]);
3049       break;
3050
3051     case EXPR_CONDITIONAL_OPERATOR:
3052       S = new (Context) ConditionalOperator(Empty);
3053       break;
3054
3055     case EXPR_BINARY_CONDITIONAL_OPERATOR:
3056       S = new (Context) BinaryConditionalOperator(Empty);
3057       break;
3058
3059     case EXPR_IMPLICIT_CAST:
3060       S = ImplicitCastExpr::CreateEmpty(
3061           Context,
3062           /*PathSize*/ Record[ASTStmtReader::NumExprFields],
3063           /*HasFPFeatures*/ Record[ASTStmtReader::NumExprFields + 1]);
3064       break;
3065
3066     case EXPR_CSTYLE_CAST:
3067       S = CStyleCastExpr::CreateEmpty(
3068           Context,
3069           /*PathSize*/ Record[ASTStmtReader::NumExprFields],
3070           /*HasFPFeatures*/ Record[ASTStmtReader::NumExprFields + 1]);
3071       break;
3072
3073     case EXPR_COMPOUND_LITERAL:
3074       S = new (Context) CompoundLiteralExpr(Empty);
3075       break;
3076
3077     case EXPR_EXT_VECTOR_ELEMENT:
3078       S = new (Context) ExtVectorElementExpr(Empty);
3079       break;
3080
3081     case EXPR_INIT_LIST:
3082       S = new (Context) InitListExpr(Empty);
3083       break;
3084
3085     case EXPR_DESIGNATED_INIT:
3086       S = DesignatedInitExpr::CreateEmpty(Context,
3087                                      Record[ASTStmtReader::NumExprFields] - 1);
3088
3089       break;
3090
3091     case EXPR_DESIGNATED_INIT_UPDATE:
3092       S = new (Context) DesignatedInitUpdateExpr(Empty);
3093       break;
3094
3095     case EXPR_IMPLICIT_VALUE_INIT:
3096       S = new (Context) ImplicitValueInitExpr(Empty);
3097       break;
3098
3099     case EXPR_NO_INIT:
3100       S = new (Context) NoInitExpr(Empty);
3101       break;
3102
3103     case EXPR_ARRAY_INIT_LOOP:
3104       S = new (Context) ArrayInitLoopExpr(Empty);
3105       break;
3106
3107     case EXPR_ARRAY_INIT_INDEX:
3108       S = new (Context) ArrayInitIndexExpr(Empty);
3109       break;
3110
3111     case EXPR_VA_ARG:
3112       S = new (Context) VAArgExpr(Empty);
3113       break;
3114
3115     case EXPR_SOURCE_LOC:
3116       S = new (Context) SourceLocExpr(Empty);
3117       break;
3118
3119     case EXPR_ADDR_LABEL:
3120       S = new (Context) AddrLabelExpr(Empty);
3121       break;
3122
3123     case EXPR_STMT:
3124       S = new (Context) StmtExpr(Empty);
3125       break;
3126
3127     case EXPR_CHOOSE:
3128       S = new (Context) ChooseExpr(Empty);
3129       break;
3130
3131     case EXPR_GNU_NULL:
3132       S = new (Context) GNUNullExpr(Empty);
3133       break;
3134
3135     case EXPR_SHUFFLE_VECTOR:
3136       S = new (Context) ShuffleVectorExpr(Empty);
3137       break;
3138
3139     case EXPR_CONVERT_VECTOR:
3140       S = new (Context) ConvertVectorExpr(Empty);
3141       break;
3142
3143     case EXPR_BLOCK:
3144       S = new (Context) BlockExpr(Empty);
3145       break;
3146
3147     case EXPR_GENERIC_SELECTION:
3148       S = GenericSelectionExpr::CreateEmpty(
3149           Context,
3150           /*NumAssocs=*/Record[ASTStmtReader::NumExprFields]);
3151       break;
3152
3153     case EXPR_OBJC_STRING_LITERAL:
3154       S = new (Context) ObjCStringLiteral(Empty);
3155       break;
3156
3157     case EXPR_OBJC_BOXED_EXPRESSION:
3158       S = new (Context) ObjCBoxedExpr(Empty);
3159       break;
3160
3161     case EXPR_OBJC_ARRAY_LITERAL:
3162       S = ObjCArrayLiteral::CreateEmpty(Context,
3163                                         Record[ASTStmtReader::NumExprFields]);
3164       break;
3165
3166     case EXPR_OBJC_DICTIONARY_LITERAL:
3167       S = ObjCDictionaryLiteral::CreateEmpty(Context,
3168             Record[ASTStmtReader::NumExprFields],
3169             Record[ASTStmtReader::NumExprFields + 1]);
3170       break;
3171
3172     case EXPR_OBJC_ENCODE:
3173       S = new (Context) ObjCEncodeExpr(Empty);
3174       break;
3175
3176     case EXPR_OBJC_SELECTOR_EXPR:
3177       S = new (Context) ObjCSelectorExpr(Empty);
3178       break;
3179
3180     case EXPR_OBJC_PROTOCOL_EXPR:
3181       S = new (Context) ObjCProtocolExpr(Empty);
3182       break;
3183
3184     case EXPR_OBJC_IVAR_REF_EXPR:
3185       S = new (Context) ObjCIvarRefExpr(Empty);
3186       break;
3187
3188     case EXPR_OBJC_PROPERTY_REF_EXPR:
3189       S = new (Context) ObjCPropertyRefExpr(Empty);
3190       break;
3191
3192     case EXPR_OBJC_SUBSCRIPT_REF_EXPR:
3193       S = new (Context) ObjCSubscriptRefExpr(Empty);
3194       break;
3195
3196     case EXPR_OBJC_KVC_REF_EXPR:
3197       llvm_unreachable("mismatching AST file");
3198
3199     case EXPR_OBJC_MESSAGE_EXPR:
3200       S = ObjCMessageExpr::CreateEmpty(Context,
3201                                      Record[ASTStmtReader::NumExprFields],
3202                                      Record[ASTStmtReader::NumExprFields + 1]);
3203       break;
3204
3205     case EXPR_OBJC_ISA:
3206       S = new (Context) ObjCIsaExpr(Empty);
3207       break;
3208
3209     case EXPR_OBJC_INDIRECT_COPY_RESTORE:
3210       S = new (Context) ObjCIndirectCopyRestoreExpr(Empty);
3211       break;
3212
3213     case EXPR_OBJC_BRIDGED_CAST:
3214       S = new (Context) ObjCBridgedCastExpr(Empty);
3215       break;
3216
3217     case STMT_OBJC_FOR_COLLECTION:
3218       S = new (Context) ObjCForCollectionStmt(Empty);
3219       break;
3220
3221     case STMT_OBJC_CATCH:
3222       S = new (Context) ObjCAtCatchStmt(Empty);
3223       break;
3224
3225     case STMT_OBJC_FINALLY:
3226       S = new (Context) ObjCAtFinallyStmt(Empty);
3227       break;
3228
3229     case STMT_OBJC_AT_TRY:
3230       S = ObjCAtTryStmt::CreateEmpty(Context,
3231                                      Record[ASTStmtReader::NumStmtFields],
3232                                      Record[ASTStmtReader::NumStmtFields + 1]);
3233       break;
3234
3235     case STMT_OBJC_AT_SYNCHRONIZED:
3236       S = new (Context) ObjCAtSynchronizedStmt(Empty);
3237       break;
3238
3239     case STMT_OBJC_AT_THROW:
3240       S = new (Context) ObjCAtThrowStmt(Empty);
3241       break;
3242
3243     case STMT_OBJC_AUTORELEASE_POOL:
3244       S = new (Context) ObjCAutoreleasePoolStmt(Empty);
3245       break;
3246
3247     case EXPR_OBJC_BOOL_LITERAL:
3248       S = new (Context) ObjCBoolLiteralExpr(Empty);
3249       break;
3250
3251     case EXPR_OBJC_AVAILABILITY_CHECK:
3252       S = new (Context) ObjCAvailabilityCheckExpr(Empty);
3253       break;
3254
3255     case STMT_SEH_LEAVE:
3256       S = new (Context) SEHLeaveStmt(Empty);
3257       break;
3258
3259     case STMT_SEH_EXCEPT:
3260       S = new (Context) SEHExceptStmt(Empty);
3261       break;
3262
3263     case STMT_SEH_FINALLY:
3264       S = new (Context) SEHFinallyStmt(Empty);
3265       break;
3266
3267     case STMT_SEH_TRY:
3268       S = new (Context) SEHTryStmt(Empty);
3269       break;
3270
3271     case STMT_CXX_CATCH:
3272       S = new (Context) CXXCatchStmt(Empty);
3273       break;
3274
3275     case STMT_CXX_TRY:
3276       S = CXXTryStmt::Create(Context, Empty,
3277              /*numHandlers=*/Record[ASTStmtReader::NumStmtFields]);
3278       break;
3279
3280     case STMT_CXX_FOR_RANGE:
3281       S = new (Context) CXXForRangeStmt(Empty);
3282       break;
3283
3284     case STMT_MS_DEPENDENT_EXISTS:
3285       S = new (Context) MSDependentExistsStmt(SourceLocation(), true,
3286                                               NestedNameSpecifierLoc(),
3287                                               DeclarationNameInfo(),
3288                                               nullptr);
3289       break;
3290
3291     case STMT_OMP_CANONICAL_LOOP:
3292       S = OMPCanonicalLoop::createEmpty(Context);
3293       break;
3294
3295     case STMT_OMP_META_DIRECTIVE:
3296       S = OMPMetaDirective::CreateEmpty(
3297           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3298       break;
3299
3300     case STMT_OMP_PARALLEL_DIRECTIVE:
3301       S =
3302         OMPParallelDirective::CreateEmpty(Context,
3303                                           Record[ASTStmtReader::NumStmtFields],
3304                                           Empty);
3305       break;
3306
3307     case STMT_OMP_SIMD_DIRECTIVE: {
3308       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3309       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3310       S = OMPSimdDirective::CreateEmpty(Context, NumClauses,
3311                                         CollapsedNum, Empty);
3312       break;
3313     }
3314
3315     case STMT_OMP_TILE_DIRECTIVE: {
3316       unsigned NumLoops = Record[ASTStmtReader::NumStmtFields];
3317       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3318       S = OMPTileDirective::CreateEmpty(Context, NumClauses, NumLoops);
3319       break;
3320     }
3321
3322     case STMT_OMP_UNROLL_DIRECTIVE: {
3323       assert(Record[ASTStmtReader::NumStmtFields] == 1 && "Unroll directive accepts only a single loop");
3324       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3325       S = OMPUnrollDirective::CreateEmpty(Context, NumClauses);
3326       break;
3327     }
3328
3329     case STMT_OMP_FOR_DIRECTIVE: {
3330       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3331       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3332       S = OMPForDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
3333                                        Empty);
3334       break;
3335     }
3336
3337     case STMT_OMP_FOR_SIMD_DIRECTIVE: {
3338       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3339       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3340       S = OMPForSimdDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
3341                                            Empty);
3342       break;
3343     }
3344
3345     case STMT_OMP_SECTIONS_DIRECTIVE:
3346       S = OMPSectionsDirective::CreateEmpty(
3347           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3348       break;
3349
3350     case STMT_OMP_SECTION_DIRECTIVE:
3351       S = OMPSectionDirective::CreateEmpty(Context, Empty);
3352       break;
3353
3354     case STMT_OMP_SINGLE_DIRECTIVE:
3355       S = OMPSingleDirective::CreateEmpty(
3356           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3357       break;
3358
3359     case STMT_OMP_MASTER_DIRECTIVE:
3360       S = OMPMasterDirective::CreateEmpty(Context, Empty);
3361       break;
3362
3363     case STMT_OMP_CRITICAL_DIRECTIVE:
3364       S = OMPCriticalDirective::CreateEmpty(
3365           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3366       break;
3367
3368     case STMT_OMP_PARALLEL_FOR_DIRECTIVE: {
3369       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3370       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3371       S = OMPParallelForDirective::CreateEmpty(Context, NumClauses,
3372                                                CollapsedNum, Empty);
3373       break;
3374     }
3375
3376     case STMT_OMP_PARALLEL_FOR_SIMD_DIRECTIVE: {
3377       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3378       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3379       S = OMPParallelForSimdDirective::CreateEmpty(Context, NumClauses,
3380                                                    CollapsedNum, Empty);
3381       break;
3382     }
3383
3384     case STMT_OMP_PARALLEL_MASTER_DIRECTIVE:
3385       S = OMPParallelMasterDirective::CreateEmpty(
3386           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3387       break;
3388
3389     case STMT_OMP_PARALLEL_MASKED_DIRECTIVE:
3390       S = OMPParallelMaskedDirective::CreateEmpty(
3391           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3392       break;
3393
3394     case STMT_OMP_PARALLEL_SECTIONS_DIRECTIVE:
3395       S = OMPParallelSectionsDirective::CreateEmpty(
3396           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3397       break;
3398
3399     case STMT_OMP_TASK_DIRECTIVE:
3400       S = OMPTaskDirective::CreateEmpty(
3401           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3402       break;
3403
3404     case STMT_OMP_TASKYIELD_DIRECTIVE:
3405       S = OMPTaskyieldDirective::CreateEmpty(Context, Empty);
3406       break;
3407
3408     case STMT_OMP_BARRIER_DIRECTIVE:
3409       S = OMPBarrierDirective::CreateEmpty(Context, Empty);
3410       break;
3411
3412     case STMT_OMP_TASKWAIT_DIRECTIVE:
3413       S = OMPTaskwaitDirective::CreateEmpty(
3414           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3415       break;
3416
3417     case STMT_OMP_ERROR_DIRECTIVE:
3418       S = OMPErrorDirective::CreateEmpty(
3419           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3420       break;
3421
3422     case STMT_OMP_TASKGROUP_DIRECTIVE:
3423       S = OMPTaskgroupDirective::CreateEmpty(
3424           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3425       break;
3426
3427     case STMT_OMP_FLUSH_DIRECTIVE:
3428       S = OMPFlushDirective::CreateEmpty(
3429           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3430       break;
3431
3432     case STMT_OMP_DEPOBJ_DIRECTIVE:
3433       S = OMPDepobjDirective::CreateEmpty(
3434           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3435       break;
3436
3437     case STMT_OMP_SCAN_DIRECTIVE:
3438       S = OMPScanDirective::CreateEmpty(
3439           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3440       break;
3441
3442     case STMT_OMP_ORDERED_DIRECTIVE: {
3443       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields];
3444       bool HasAssociatedStmt = Record[ASTStmtReader::NumStmtFields + 2];
3445       S = OMPOrderedDirective::CreateEmpty(Context, NumClauses,
3446                                            !HasAssociatedStmt, Empty);
3447       break;
3448     }
3449
3450     case STMT_OMP_ATOMIC_DIRECTIVE:
3451       S = OMPAtomicDirective::CreateEmpty(
3452           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3453       break;
3454
3455     case STMT_OMP_TARGET_DIRECTIVE:
3456       S = OMPTargetDirective::CreateEmpty(
3457           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3458       break;
3459
3460     case STMT_OMP_TARGET_DATA_DIRECTIVE:
3461       S = OMPTargetDataDirective::CreateEmpty(
3462           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3463       break;
3464
3465     case STMT_OMP_TARGET_ENTER_DATA_DIRECTIVE:
3466       S = OMPTargetEnterDataDirective::CreateEmpty(
3467           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3468       break;
3469
3470     case STMT_OMP_TARGET_EXIT_DATA_DIRECTIVE:
3471       S = OMPTargetExitDataDirective::CreateEmpty(
3472           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3473       break;
3474
3475     case STMT_OMP_TARGET_PARALLEL_DIRECTIVE:
3476       S = OMPTargetParallelDirective::CreateEmpty(
3477           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3478       break;
3479
3480     case STMT_OMP_TARGET_PARALLEL_FOR_DIRECTIVE: {
3481       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3482       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3483       S = OMPTargetParallelForDirective::CreateEmpty(Context, NumClauses,
3484                                                      CollapsedNum, Empty);
3485       break;
3486     }
3487
3488     case STMT_OMP_TARGET_UPDATE_DIRECTIVE:
3489       S = OMPTargetUpdateDirective::CreateEmpty(
3490           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3491       break;
3492
3493     case STMT_OMP_TEAMS_DIRECTIVE:
3494       S = OMPTeamsDirective::CreateEmpty(
3495           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3496       break;
3497
3498     case STMT_OMP_CANCELLATION_POINT_DIRECTIVE:
3499       S = OMPCancellationPointDirective::CreateEmpty(Context, Empty);
3500       break;
3501
3502     case STMT_OMP_CANCEL_DIRECTIVE:
3503       S = OMPCancelDirective::CreateEmpty(
3504           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3505       break;
3506
3507     case STMT_OMP_TASKLOOP_DIRECTIVE: {
3508       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3509       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3510       S = OMPTaskLoopDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
3511                                             Empty);
3512       break;
3513     }
3514
3515     case STMT_OMP_TASKLOOP_SIMD_DIRECTIVE: {
3516       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3517       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3518       S = OMPTaskLoopSimdDirective::CreateEmpty(Context, NumClauses,
3519                                                 CollapsedNum, Empty);
3520       break;
3521     }
3522
3523     case STMT_OMP_MASTER_TASKLOOP_DIRECTIVE: {
3524       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3525       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3526       S = OMPMasterTaskLoopDirective::CreateEmpty(Context, NumClauses,
3527                                                   CollapsedNum, Empty);
3528       break;
3529     }
3530
3531     case STMT_OMP_MASKED_TASKLOOP_DIRECTIVE: {
3532       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3533       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3534       S = OMPMaskedTaskLoopDirective::CreateEmpty(Context, NumClauses,
3535                                                   CollapsedNum, Empty);
3536       break;
3537     }
3538
3539     case STMT_OMP_MASTER_TASKLOOP_SIMD_DIRECTIVE: {
3540       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3541       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3542       S = OMPMasterTaskLoopSimdDirective::CreateEmpty(Context, NumClauses,
3543                                                       CollapsedNum, Empty);
3544       break;
3545     }
3546
3547     case STMT_OMP_MASKED_TASKLOOP_SIMD_DIRECTIVE: {
3548       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3549       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3550       S = OMPMaskedTaskLoopSimdDirective::CreateEmpty(Context, NumClauses,
3551                                                       CollapsedNum, Empty);
3552       break;
3553     }
3554
3555     case STMT_OMP_PARALLEL_MASTER_TASKLOOP_DIRECTIVE: {
3556       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3557       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3558       S = OMPParallelMasterTaskLoopDirective::CreateEmpty(Context, NumClauses,
3559                                                           CollapsedNum, Empty);
3560       break;
3561     }
3562
3563     case STMT_OMP_PARALLEL_MASKED_TASKLOOP_DIRECTIVE: {
3564       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3565       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3566       S = OMPParallelMaskedTaskLoopDirective::CreateEmpty(Context, NumClauses,
3567                                                           CollapsedNum, Empty);
3568       break;
3569     }
3570
3571     case STMT_OMP_PARALLEL_MASTER_TASKLOOP_SIMD_DIRECTIVE: {
3572       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3573       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3574       S = OMPParallelMasterTaskLoopSimdDirective::CreateEmpty(
3575           Context, NumClauses, CollapsedNum, Empty);
3576       break;
3577     }
3578
3579     case STMT_OMP_PARALLEL_MASKED_TASKLOOP_SIMD_DIRECTIVE: {
3580       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3581       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3582       S = OMPParallelMaskedTaskLoopSimdDirective::CreateEmpty(
3583           Context, NumClauses, CollapsedNum, Empty);
3584       break;
3585     }
3586
3587     case STMT_OMP_DISTRIBUTE_DIRECTIVE: {
3588       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3589       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3590       S = OMPDistributeDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
3591                                               Empty);
3592       break;
3593     }
3594
3595     case STMT_OMP_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
3596       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3597       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3598       S = OMPDistributeParallelForDirective::CreateEmpty(Context, NumClauses,
3599                                                          CollapsedNum, Empty);
3600       break;
3601     }
3602
3603     case STMT_OMP_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
3604       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3605       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3606       S = OMPDistributeParallelForSimdDirective::CreateEmpty(Context, NumClauses,
3607                                                              CollapsedNum,
3608                                                              Empty);
3609       break;
3610     }
3611
3612     case STMT_OMP_DISTRIBUTE_SIMD_DIRECTIVE: {
3613       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3614       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3615       S = OMPDistributeSimdDirective::CreateEmpty(Context, NumClauses,
3616                                                   CollapsedNum, Empty);
3617       break;
3618     }
3619
3620     case STMT_OMP_TARGET_PARALLEL_FOR_SIMD_DIRECTIVE: {
3621       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3622       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3623       S = OMPTargetParallelForSimdDirective::CreateEmpty(Context, NumClauses,
3624                                                          CollapsedNum, Empty);
3625       break;
3626     }
3627
3628     case STMT_OMP_TARGET_SIMD_DIRECTIVE: {
3629       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3630       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3631       S = OMPTargetSimdDirective::CreateEmpty(Context, NumClauses, CollapsedNum,
3632                                               Empty);
3633       break;
3634     }
3635
3636      case STMT_OMP_TEAMS_DISTRIBUTE_DIRECTIVE: {
3637        unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3638        unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3639        S = OMPTeamsDistributeDirective::CreateEmpty(Context, NumClauses,
3640                                                     CollapsedNum, Empty);
3641        break;
3642     }
3643
3644     case STMT_OMP_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE: {
3645       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3646       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3647       S = OMPTeamsDistributeSimdDirective::CreateEmpty(Context, NumClauses,
3648                                                        CollapsedNum, Empty);
3649       break;
3650     }
3651
3652     case STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
3653       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3654       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3655       S = OMPTeamsDistributeParallelForSimdDirective::CreateEmpty(
3656           Context, NumClauses, CollapsedNum, Empty);
3657       break;
3658     }
3659
3660     case STMT_OMP_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
3661       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3662       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3663       S = OMPTeamsDistributeParallelForDirective::CreateEmpty(
3664           Context, NumClauses, CollapsedNum, Empty);
3665       break;
3666     }
3667
3668     case STMT_OMP_TARGET_TEAMS_DIRECTIVE:
3669       S = OMPTargetTeamsDirective::CreateEmpty(
3670           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3671       break;
3672
3673     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_DIRECTIVE: {
3674       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3675       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3676       S = OMPTargetTeamsDistributeDirective::CreateEmpty(Context, NumClauses,
3677                                                          CollapsedNum, Empty);
3678       break;
3679     }
3680
3681     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_DIRECTIVE: {
3682       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3683       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3684       S = OMPTargetTeamsDistributeParallelForDirective::CreateEmpty(
3685           Context, NumClauses, CollapsedNum, Empty);
3686       break;
3687     }
3688
3689     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_FOR_SIMD_DIRECTIVE: {
3690       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3691       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3692       S = OMPTargetTeamsDistributeParallelForSimdDirective::CreateEmpty(
3693           Context, NumClauses, CollapsedNum, Empty);
3694       break;
3695     }
3696
3697     case STMT_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD_DIRECTIVE: {
3698       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3699       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3700       S = OMPTargetTeamsDistributeSimdDirective::CreateEmpty(
3701           Context, NumClauses, CollapsedNum, Empty);
3702       break;
3703     }
3704
3705     case STMT_OMP_INTEROP_DIRECTIVE:
3706       S = OMPInteropDirective::CreateEmpty(
3707           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3708       break;
3709
3710     case STMT_OMP_DISPATCH_DIRECTIVE:
3711       S = OMPDispatchDirective::CreateEmpty(
3712           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3713       break;
3714
3715     case STMT_OMP_MASKED_DIRECTIVE:
3716       S = OMPMaskedDirective::CreateEmpty(
3717           Context, Record[ASTStmtReader::NumStmtFields], Empty);
3718       break;
3719
3720     case STMT_OMP_GENERIC_LOOP_DIRECTIVE: {
3721       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3722       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3723       S = OMPGenericLoopDirective::CreateEmpty(Context, NumClauses,
3724                                                CollapsedNum, Empty);
3725       break;
3726     }
3727
3728     case STMT_OMP_TEAMS_GENERIC_LOOP_DIRECTIVE: {
3729       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3730       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3731       S = OMPTeamsGenericLoopDirective::CreateEmpty(Context, NumClauses,
3732                                                     CollapsedNum, Empty);
3733       break;
3734     }
3735
3736     case STMT_OMP_TARGET_TEAMS_GENERIC_LOOP_DIRECTIVE: {
3737       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3738       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3739       S = OMPTargetTeamsGenericLoopDirective::CreateEmpty(Context, NumClauses,
3740                                                           CollapsedNum, Empty);
3741       break;
3742     }
3743
3744     case STMT_OMP_PARALLEL_GENERIC_LOOP_DIRECTIVE: {
3745       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3746       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3747       S = OMPParallelGenericLoopDirective::CreateEmpty(Context, NumClauses,
3748                                                        CollapsedNum, Empty);
3749       break;
3750     }
3751
3752     case STMT_OMP_TARGET_PARALLEL_GENERIC_LOOP_DIRECTIVE: {
3753       unsigned CollapsedNum = Record[ASTStmtReader::NumStmtFields];
3754       unsigned NumClauses = Record[ASTStmtReader::NumStmtFields + 1];
3755       S = OMPTargetParallelGenericLoopDirective::CreateEmpty(
3756           Context, NumClauses, CollapsedNum, Empty);
3757       break;
3758     }
3759
3760     case EXPR_CXX_OPERATOR_CALL:
3761       S = CXXOperatorCallExpr::CreateEmpty(
3762           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields],
3763           /*HasFPFeatures=*/Record[ASTStmtReader::NumExprFields + 1], Empty);
3764       break;
3765
3766     case EXPR_CXX_MEMBER_CALL:
3767       S = CXXMemberCallExpr::CreateEmpty(
3768           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields],
3769           /*HasFPFeatures=*/Record[ASTStmtReader::NumExprFields + 1], Empty);
3770       break;
3771
3772     case EXPR_CXX_REWRITTEN_BINARY_OPERATOR:
3773       S = new (Context) CXXRewrittenBinaryOperator(Empty);
3774       break;
3775
3776     case EXPR_CXX_CONSTRUCT:
3777       S = CXXConstructExpr::CreateEmpty(
3778           Context,
3779           /* NumArgs=*/Record[ASTStmtReader::NumExprFields]);
3780       break;
3781
3782     case EXPR_CXX_INHERITED_CTOR_INIT:
3783       S = new (Context) CXXInheritedCtorInitExpr(Empty);
3784       break;
3785
3786     case EXPR_CXX_TEMPORARY_OBJECT:
3787       S = CXXTemporaryObjectExpr::CreateEmpty(
3788           Context,
3789           /* NumArgs=*/Record[ASTStmtReader::NumExprFields]);
3790       break;
3791
3792     case EXPR_CXX_STATIC_CAST:
3793       S = CXXStaticCastExpr::CreateEmpty(
3794           Context,
3795           /*PathSize*/ Record[ASTStmtReader::NumExprFields],
3796           /*HasFPFeatures*/ Record[ASTStmtReader::NumExprFields + 1]);
3797       break;
3798
3799     case EXPR_CXX_DYNAMIC_CAST:
3800       S = CXXDynamicCastExpr::CreateEmpty(Context,
3801                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3802       break;
3803
3804     case EXPR_CXX_REINTERPRET_CAST:
3805       S = CXXReinterpretCastExpr::CreateEmpty(Context,
3806                        /*PathSize*/ Record[ASTStmtReader::NumExprFields]);
3807       break;
3808
3809     case EXPR_CXX_CONST_CAST:
3810       S = CXXConstCastExpr::CreateEmpty(Context);
3811       break;
3812
3813     case EXPR_CXX_ADDRSPACE_CAST:
3814       S = CXXAddrspaceCastExpr::CreateEmpty(Context);
3815       break;
3816
3817     case EXPR_CXX_FUNCTIONAL_CAST:
3818       S = CXXFunctionalCastExpr::CreateEmpty(
3819           Context,
3820           /*PathSize*/ Record[ASTStmtReader::NumExprFields],
3821           /*HasFPFeatures*/ Record[ASTStmtReader::NumExprFields + 1]);
3822       break;
3823
3824     case EXPR_BUILTIN_BIT_CAST:
3825       assert(Record[ASTStmtReader::NumExprFields] == 0 && "Wrong PathSize!");
3826       S = new (Context) BuiltinBitCastExpr(Empty);
3827       break;
3828
3829     case EXPR_USER_DEFINED_LITERAL:
3830       S = UserDefinedLiteral::CreateEmpty(
3831           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields],
3832           /*HasFPFeatures=*/Record[ASTStmtReader::NumExprFields + 1], Empty);
3833       break;
3834
3835     case EXPR_CXX_STD_INITIALIZER_LIST:
3836       S = new (Context) CXXStdInitializerListExpr(Empty);
3837       break;
3838
3839     case EXPR_CXX_BOOL_LITERAL:
3840       S = new (Context) CXXBoolLiteralExpr(Empty);
3841       break;
3842
3843     case EXPR_CXX_NULL_PTR_LITERAL:
3844       S = new (Context) CXXNullPtrLiteralExpr(Empty);
3845       break;
3846
3847     case EXPR_CXX_TYPEID_EXPR:
3848       S = new (Context) CXXTypeidExpr(Empty, true);
3849       break;
3850
3851     case EXPR_CXX_TYPEID_TYPE:
3852       S = new (Context) CXXTypeidExpr(Empty, false);
3853       break;
3854
3855     case EXPR_CXX_UUIDOF_EXPR:
3856       S = new (Context) CXXUuidofExpr(Empty, true);
3857       break;
3858
3859     case EXPR_CXX_PROPERTY_REF_EXPR:
3860       S = new (Context) MSPropertyRefExpr(Empty);
3861       break;
3862
3863     case EXPR_CXX_PROPERTY_SUBSCRIPT_EXPR:
3864       S = new (Context) MSPropertySubscriptExpr(Empty);
3865       break;
3866
3867     case EXPR_CXX_UUIDOF_TYPE:
3868       S = new (Context) CXXUuidofExpr(Empty, false);
3869       break;
3870
3871     case EXPR_CXX_THIS:
3872       S = new (Context) CXXThisExpr(Empty);
3873       break;
3874
3875     case EXPR_CXX_THROW:
3876       S = new (Context) CXXThrowExpr(Empty);
3877       break;
3878
3879     case EXPR_CXX_DEFAULT_ARG:
3880       S = CXXDefaultArgExpr::CreateEmpty(
3881           Context, /*HasRewrittenInit=*/Record[ASTStmtReader::NumExprFields]);
3882       break;
3883
3884     case EXPR_CXX_DEFAULT_INIT:
3885       S = CXXDefaultInitExpr::CreateEmpty(
3886           Context, /*HasRewrittenInit=*/Record[ASTStmtReader::NumExprFields]);
3887       break;
3888
3889     case EXPR_CXX_BIND_TEMPORARY:
3890       S = new (Context) CXXBindTemporaryExpr(Empty);
3891       break;
3892
3893     case EXPR_CXX_SCALAR_VALUE_INIT:
3894       S = new (Context) CXXScalarValueInitExpr(Empty);
3895       break;
3896
3897     case EXPR_CXX_NEW:
3898       S = CXXNewExpr::CreateEmpty(
3899           Context,
3900           /*IsArray=*/Record[ASTStmtReader::NumExprFields],
3901           /*HasInit=*/Record[ASTStmtReader::NumExprFields + 1],
3902           /*NumPlacementArgs=*/Record[ASTStmtReader::NumExprFields + 2],
3903           /*IsParenTypeId=*/Record[ASTStmtReader::NumExprFields + 3]);
3904       break;
3905
3906     case EXPR_CXX_DELETE:
3907       S = new (Context) CXXDeleteExpr(Empty);
3908       break;
3909
3910     case EXPR_CXX_PSEUDO_DESTRUCTOR:
3911       S = new (Context) CXXPseudoDestructorExpr(Empty);
3912       break;
3913
3914     case EXPR_EXPR_WITH_CLEANUPS:
3915       S = ExprWithCleanups::Create(Context, Empty,
3916                                    Record[ASTStmtReader::NumExprFields]);
3917       break;
3918
3919     case EXPR_CXX_DEPENDENT_SCOPE_MEMBER:
3920       S = CXXDependentScopeMemberExpr::CreateEmpty(
3921           Context,
3922           /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3923           /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields + 1],
3924           /*HasFirstQualifierFoundInScope=*/
3925           Record[ASTStmtReader::NumExprFields + 2]);
3926       break;
3927
3928     case EXPR_CXX_DEPENDENT_SCOPE_DECL_REF:
3929       S = DependentScopeDeclRefExpr::CreateEmpty(Context,
3930          /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields],
3931                   /*NumTemplateArgs=*/Record[ASTStmtReader::NumExprFields]
3932                                    ? Record[ASTStmtReader::NumExprFields + 1]
3933                                    : 0);
3934       break;
3935
3936     case EXPR_CXX_UNRESOLVED_CONSTRUCT:
3937       S = CXXUnresolvedConstructExpr::CreateEmpty(Context,
3938                               /*NumArgs=*/Record[ASTStmtReader::NumExprFields]);
3939       break;
3940
3941     case EXPR_CXX_UNRESOLVED_MEMBER:
3942       S = UnresolvedMemberExpr::CreateEmpty(
3943           Context,
3944           /*NumResults=*/Record[ASTStmtReader::NumExprFields],
3945           /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields + 1],
3946           /*NumTemplateArgs=*/
3947           Record[ASTStmtReader::NumExprFields + 1]
3948               ? Record[ASTStmtReader::NumExprFields + 2]
3949               : 0);
3950       break;
3951
3952     case EXPR_CXX_UNRESOLVED_LOOKUP:
3953       S = UnresolvedLookupExpr::CreateEmpty(
3954           Context,
3955           /*NumResults=*/Record[ASTStmtReader::NumExprFields],
3956           /*HasTemplateKWAndArgsInfo=*/Record[ASTStmtReader::NumExprFields + 1],
3957           /*NumTemplateArgs=*/
3958           Record[ASTStmtReader::NumExprFields + 1]
3959               ? Record[ASTStmtReader::NumExprFields + 2]
3960               : 0);
3961       break;
3962
3963     case EXPR_TYPE_TRAIT:
3964       S = TypeTraitExpr::CreateDeserialized(Context,
3965             Record[ASTStmtReader::NumExprFields]);
3966       break;
3967
3968     case EXPR_ARRAY_TYPE_TRAIT:
3969       S = new (Context) ArrayTypeTraitExpr(Empty);
3970       break;
3971
3972     case EXPR_CXX_EXPRESSION_TRAIT:
3973       S = new (Context) ExpressionTraitExpr(Empty);
3974       break;
3975
3976     case EXPR_CXX_NOEXCEPT:
3977       S = new (Context) CXXNoexceptExpr(Empty);
3978       break;
3979
3980     case EXPR_PACK_EXPANSION:
3981       S = new (Context) PackExpansionExpr(Empty);
3982       break;
3983
3984     case EXPR_SIZEOF_PACK:
3985       S = SizeOfPackExpr::CreateDeserialized(
3986               Context,
3987               /*NumPartialArgs=*/Record[ASTStmtReader::NumExprFields]);
3988       break;
3989
3990     case EXPR_SUBST_NON_TYPE_TEMPLATE_PARM:
3991       S = new (Context) SubstNonTypeTemplateParmExpr(Empty);
3992       break;
3993
3994     case EXPR_SUBST_NON_TYPE_TEMPLATE_PARM_PACK:
3995       S = new (Context) SubstNonTypeTemplateParmPackExpr(Empty);
3996       break;
3997
3998     case EXPR_FUNCTION_PARM_PACK:
3999       S = FunctionParmPackExpr::CreateEmpty(Context,
4000                                           Record[ASTStmtReader::NumExprFields]);
4001       break;
4002
4003     case EXPR_MATERIALIZE_TEMPORARY:
4004       S = new (Context) MaterializeTemporaryExpr(Empty);
4005       break;
4006
4007     case EXPR_CXX_FOLD:
4008       S = new (Context) CXXFoldExpr(Empty);
4009       break;
4010
4011     case EXPR_CXX_PAREN_LIST_INIT:
4012       S = CXXParenListInitExpr::CreateEmpty(
4013           Context, /*numExprs=*/Record[ASTStmtReader::NumExprFields], Empty);
4014       break;
4015
4016     case EXPR_OPAQUE_VALUE:
4017       S = new (Context) OpaqueValueExpr(Empty);
4018       break;
4019
4020     case EXPR_CUDA_KERNEL_CALL:
4021       S = CUDAKernelCallExpr::CreateEmpty(
4022           Context, /*NumArgs=*/Record[ASTStmtReader::NumExprFields],
4023           /*HasFPFeatures=*/Record[ASTStmtReader::NumExprFields + 1], Empty);
4024       break;
4025
4026     case EXPR_ASTYPE:
4027       S = new (Context) AsTypeExpr(Empty);
4028       break;
4029
4030     case EXPR_PSEUDO_OBJECT: {
4031       unsigned numSemanticExprs = Record[ASTStmtReader::NumExprFields];
4032       S = PseudoObjectExpr::Create(Context, Empty, numSemanticExprs);
4033       break;
4034     }
4035
4036     case EXPR_ATOMIC:
4037       S = new (Context) AtomicExpr(Empty);
4038       break;
4039
4040     case EXPR_LAMBDA: {
4041       unsigned NumCaptures = Record[ASTStmtReader::NumExprFields];
4042       S = LambdaExpr::CreateDeserialized(Context, NumCaptures);
4043       break;
4044     }
4045
4046     case STMT_COROUTINE_BODY: {
4047       unsigned NumParams = Record[ASTStmtReader::NumStmtFields];
4048       S = CoroutineBodyStmt::Create(Context, Empty, NumParams);
4049       break;
4050     }
4051
4052     case STMT_CORETURN:
4053       S = new (Context) CoreturnStmt(Empty);
4054       break;
4055
4056     case EXPR_COAWAIT:
4057       S = new (Context) CoawaitExpr(Empty);
4058       break;
4059
4060     case EXPR_COYIELD:
4061       S = new (Context) CoyieldExpr(Empty);
4062       break;
4063
4064     case EXPR_DEPENDENT_COAWAIT:
4065       S = new (Context) DependentCoawaitExpr(Empty);
4066       break;
4067
4068     case EXPR_CONCEPT_SPECIALIZATION: {
4069       S = new (Context) ConceptSpecializationExpr(Empty);
4070       break;
4071     }
4072
4073     case EXPR_REQUIRES:
4074       unsigned numLocalParameters = Record[ASTStmtReader::NumExprFields];
4075       unsigned numRequirement = Record[ASTStmtReader::NumExprFields + 1];
4076       S = RequiresExpr::Create(Context, Empty, numLocalParameters,
4077                                numRequirement);
4078       break;
4079     }
4080
4081     // We hit a STMT_STOP, so we're done with this expression.
4082     if (Finished)
4083       break;
4084
4085     ++NumStatementsRead;
4086
4087     if (S && !IsStmtReference) {
4088       Reader.Visit(S);
4089       StmtEntries[Cursor.GetCurrentBitNo()] = S;
4090     }
4091
4092     assert(Record.getIdx() == Record.size() &&
4093            "Invalid deserialization of statement");
4094     StmtStack.push_back(S);
4095   }
4096 Done:
4097   assert(StmtStack.size() > PrevNumStmts && "Read too many sub-stmts!");
4098   assert(StmtStack.size() == PrevNumStmts + 1 && "Extra expressions on stack!");
4099   return StmtStack.pop_back_val();
4100 }