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      1 //===---- StmtProfile.cpp - Profile implementation for Stmt ASTs ----------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file implements the Stmt::Profile method, which builds a unique bit
     11 // representation that identifies a statement/expression.
     12 //
     13 //===----------------------------------------------------------------------===//
     14 #include "clang/AST/ASTContext.h"
     15 #include "clang/AST/DeclCXX.h"
     16 #include "clang/AST/DeclObjC.h"
     17 #include "clang/AST/DeclTemplate.h"
     18 #include "clang/AST/Expr.h"
     19 #include "clang/AST/ExprCXX.h"
     20 #include "clang/AST/ExprObjC.h"
     21 #include "clang/AST/ExprOpenMP.h"
     22 #include "clang/AST/StmtVisitor.h"
     23 #include "llvm/ADT/FoldingSet.h"
     24 using namespace clang;
     25 
     26 namespace {
     27   class StmtProfiler : public ConstStmtVisitor<StmtProfiler> {
     28     llvm::FoldingSetNodeID &ID;
     29     const ASTContext &Context;
     30     bool Canonical;
     31 
     32   public:
     33     StmtProfiler(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
     34                  bool Canonical)
     35       : ID(ID), Context(Context), Canonical(Canonical) { }
     36 
     37     void VisitStmt(const Stmt *S);
     38 
     39 #define STMT(Node, Base) void Visit##Node(const Node *S);
     40 #include "clang/AST/StmtNodes.inc"
     41 
     42     /// \brief Visit a declaration that is referenced within an expression
     43     /// or statement.
     44     void VisitDecl(const Decl *D);
     45 
     46     /// \brief Visit a type that is referenced within an expression or
     47     /// statement.
     48     void VisitType(QualType T);
     49 
     50     /// \brief Visit a name that occurs within an expression or statement.
     51     void VisitName(DeclarationName Name);
     52 
     53     /// \brief Visit a nested-name-specifier that occurs within an expression
     54     /// or statement.
     55     void VisitNestedNameSpecifier(NestedNameSpecifier *NNS);
     56 
     57     /// \brief Visit a template name that occurs within an expression or
     58     /// statement.
     59     void VisitTemplateName(TemplateName Name);
     60 
     61     /// \brief Visit template arguments that occur within an expression or
     62     /// statement.
     63     void VisitTemplateArguments(const TemplateArgumentLoc *Args,
     64                                 unsigned NumArgs);
     65 
     66     /// \brief Visit a single template argument.
     67     void VisitTemplateArgument(const TemplateArgument &Arg);
     68   };
     69 }
     70 
     71 void StmtProfiler::VisitStmt(const Stmt *S) {
     72   assert(S && "Requires non-null Stmt pointer");
     73   ID.AddInteger(S->getStmtClass());
     74   for (const Stmt *SubStmt : S->children()) {
     75     if (SubStmt)
     76       Visit(SubStmt);
     77     else
     78       ID.AddInteger(0);
     79   }
     80 }
     81 
     82 void StmtProfiler::VisitDeclStmt(const DeclStmt *S) {
     83   VisitStmt(S);
     84   for (const auto *D : S->decls())
     85     VisitDecl(D);
     86 }
     87 
     88 void StmtProfiler::VisitNullStmt(const NullStmt *S) {
     89   VisitStmt(S);
     90 }
     91 
     92 void StmtProfiler::VisitCompoundStmt(const CompoundStmt *S) {
     93   VisitStmt(S);
     94 }
     95 
     96 void StmtProfiler::VisitSwitchCase(const SwitchCase *S) {
     97   VisitStmt(S);
     98 }
     99 
    100 void StmtProfiler::VisitCaseStmt(const CaseStmt *S) {
    101   VisitStmt(S);
    102 }
    103 
    104 void StmtProfiler::VisitDefaultStmt(const DefaultStmt *S) {
    105   VisitStmt(S);
    106 }
    107 
    108 void StmtProfiler::VisitLabelStmt(const LabelStmt *S) {
    109   VisitStmt(S);
    110   VisitDecl(S->getDecl());
    111 }
    112 
    113 void StmtProfiler::VisitAttributedStmt(const AttributedStmt *S) {
    114   VisitStmt(S);
    115   // TODO: maybe visit attributes?
    116 }
    117 
    118 void StmtProfiler::VisitIfStmt(const IfStmt *S) {
    119   VisitStmt(S);
    120   VisitDecl(S->getConditionVariable());
    121 }
    122 
    123 void StmtProfiler::VisitSwitchStmt(const SwitchStmt *S) {
    124   VisitStmt(S);
    125   VisitDecl(S->getConditionVariable());
    126 }
    127 
    128 void StmtProfiler::VisitWhileStmt(const WhileStmt *S) {
    129   VisitStmt(S);
    130   VisitDecl(S->getConditionVariable());
    131 }
    132 
    133 void StmtProfiler::VisitDoStmt(const DoStmt *S) {
    134   VisitStmt(S);
    135 }
    136 
    137 void StmtProfiler::VisitForStmt(const ForStmt *S) {
    138   VisitStmt(S);
    139 }
    140 
    141 void StmtProfiler::VisitGotoStmt(const GotoStmt *S) {
    142   VisitStmt(S);
    143   VisitDecl(S->getLabel());
    144 }
    145 
    146 void StmtProfiler::VisitIndirectGotoStmt(const IndirectGotoStmt *S) {
    147   VisitStmt(S);
    148 }
    149 
    150 void StmtProfiler::VisitContinueStmt(const ContinueStmt *S) {
    151   VisitStmt(S);
    152 }
    153 
    154 void StmtProfiler::VisitBreakStmt(const BreakStmt *S) {
    155   VisitStmt(S);
    156 }
    157 
    158 void StmtProfiler::VisitReturnStmt(const ReturnStmt *S) {
    159   VisitStmt(S);
    160 }
    161 
    162 void StmtProfiler::VisitGCCAsmStmt(const GCCAsmStmt *S) {
    163   VisitStmt(S);
    164   ID.AddBoolean(S->isVolatile());
    165   ID.AddBoolean(S->isSimple());
    166   VisitStringLiteral(S->getAsmString());
    167   ID.AddInteger(S->getNumOutputs());
    168   for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
    169     ID.AddString(S->getOutputName(I));
    170     VisitStringLiteral(S->getOutputConstraintLiteral(I));
    171   }
    172   ID.AddInteger(S->getNumInputs());
    173   for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
    174     ID.AddString(S->getInputName(I));
    175     VisitStringLiteral(S->getInputConstraintLiteral(I));
    176   }
    177   ID.AddInteger(S->getNumClobbers());
    178   for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
    179     VisitStringLiteral(S->getClobberStringLiteral(I));
    180 }
    181 
    182 void StmtProfiler::VisitMSAsmStmt(const MSAsmStmt *S) {
    183   // FIXME: Implement MS style inline asm statement profiler.
    184   VisitStmt(S);
    185 }
    186 
    187 void StmtProfiler::VisitCXXCatchStmt(const CXXCatchStmt *S) {
    188   VisitStmt(S);
    189   VisitType(S->getCaughtType());
    190 }
    191 
    192 void StmtProfiler::VisitCXXTryStmt(const CXXTryStmt *S) {
    193   VisitStmt(S);
    194 }
    195 
    196 void StmtProfiler::VisitCXXForRangeStmt(const CXXForRangeStmt *S) {
    197   VisitStmt(S);
    198 }
    199 
    200 void StmtProfiler::VisitMSDependentExistsStmt(const MSDependentExistsStmt *S) {
    201   VisitStmt(S);
    202   ID.AddBoolean(S->isIfExists());
    203   VisitNestedNameSpecifier(S->getQualifierLoc().getNestedNameSpecifier());
    204   VisitName(S->getNameInfo().getName());
    205 }
    206 
    207 void StmtProfiler::VisitSEHTryStmt(const SEHTryStmt *S) {
    208   VisitStmt(S);
    209 }
    210 
    211 void StmtProfiler::VisitSEHFinallyStmt(const SEHFinallyStmt *S) {
    212   VisitStmt(S);
    213 }
    214 
    215 void StmtProfiler::VisitSEHExceptStmt(const SEHExceptStmt *S) {
    216   VisitStmt(S);
    217 }
    218 
    219 void StmtProfiler::VisitSEHLeaveStmt(const SEHLeaveStmt *S) {
    220   VisitStmt(S);
    221 }
    222 
    223 void StmtProfiler::VisitCapturedStmt(const CapturedStmt *S) {
    224   VisitStmt(S);
    225 }
    226 
    227 void StmtProfiler::VisitObjCForCollectionStmt(const ObjCForCollectionStmt *S) {
    228   VisitStmt(S);
    229 }
    230 
    231 void StmtProfiler::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *S) {
    232   VisitStmt(S);
    233   ID.AddBoolean(S->hasEllipsis());
    234   if (S->getCatchParamDecl())
    235     VisitType(S->getCatchParamDecl()->getType());
    236 }
    237 
    238 void StmtProfiler::VisitObjCAtFinallyStmt(const ObjCAtFinallyStmt *S) {
    239   VisitStmt(S);
    240 }
    241 
    242 void StmtProfiler::VisitObjCAtTryStmt(const ObjCAtTryStmt *S) {
    243   VisitStmt(S);
    244 }
    245 
    246 void
    247 StmtProfiler::VisitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt *S) {
    248   VisitStmt(S);
    249 }
    250 
    251 void StmtProfiler::VisitObjCAtThrowStmt(const ObjCAtThrowStmt *S) {
    252   VisitStmt(S);
    253 }
    254 
    255 void
    256 StmtProfiler::VisitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt *S) {
    257   VisitStmt(S);
    258 }
    259 
    260 namespace {
    261 class OMPClauseProfiler : public ConstOMPClauseVisitor<OMPClauseProfiler> {
    262   StmtProfiler *Profiler;
    263   /// \brief Process clauses with list of variables.
    264   template <typename T>
    265   void VisitOMPClauseList(T *Node);
    266 
    267 public:
    268   OMPClauseProfiler(StmtProfiler *P) : Profiler(P) { }
    269 #define OPENMP_CLAUSE(Name, Class)                                             \
    270   void Visit##Class(const Class *C);
    271 #include "clang/Basic/OpenMPKinds.def"
    272   void VistOMPClauseWithPreInit(const OMPClauseWithPreInit *C);
    273   void VistOMPClauseWithPostUpdate(const OMPClauseWithPostUpdate *C);
    274 };
    275 
    276 void OMPClauseProfiler::VistOMPClauseWithPreInit(
    277     const OMPClauseWithPreInit *C) {
    278   if (auto *S = C->getPreInitStmt())
    279     Profiler->VisitStmt(S);
    280 }
    281 
    282 void OMPClauseProfiler::VistOMPClauseWithPostUpdate(
    283     const OMPClauseWithPostUpdate *C) {
    284   VistOMPClauseWithPreInit(C);
    285   if (auto *E = C->getPostUpdateExpr())
    286     Profiler->VisitStmt(E);
    287 }
    288 
    289 void OMPClauseProfiler::VisitOMPIfClause(const OMPIfClause *C) {
    290   if (C->getCondition())
    291     Profiler->VisitStmt(C->getCondition());
    292 }
    293 
    294 void OMPClauseProfiler::VisitOMPFinalClause(const OMPFinalClause *C) {
    295   if (C->getCondition())
    296     Profiler->VisitStmt(C->getCondition());
    297 }
    298 
    299 void OMPClauseProfiler::VisitOMPNumThreadsClause(const OMPNumThreadsClause *C) {
    300   if (C->getNumThreads())
    301     Profiler->VisitStmt(C->getNumThreads());
    302 }
    303 
    304 void OMPClauseProfiler::VisitOMPSafelenClause(const OMPSafelenClause *C) {
    305   if (C->getSafelen())
    306     Profiler->VisitStmt(C->getSafelen());
    307 }
    308 
    309 void OMPClauseProfiler::VisitOMPSimdlenClause(const OMPSimdlenClause *C) {
    310   if (C->getSimdlen())
    311     Profiler->VisitStmt(C->getSimdlen());
    312 }
    313 
    314 void OMPClauseProfiler::VisitOMPCollapseClause(const OMPCollapseClause *C) {
    315   if (C->getNumForLoops())
    316     Profiler->VisitStmt(C->getNumForLoops());
    317 }
    318 
    319 void OMPClauseProfiler::VisitOMPDefaultClause(const OMPDefaultClause *C) { }
    320 
    321 void OMPClauseProfiler::VisitOMPProcBindClause(const OMPProcBindClause *C) { }
    322 
    323 void OMPClauseProfiler::VisitOMPScheduleClause(const OMPScheduleClause *C) {
    324   VistOMPClauseWithPreInit(C);
    325   if (auto *S = C->getChunkSize())
    326     Profiler->VisitStmt(S);
    327 }
    328 
    329 void OMPClauseProfiler::VisitOMPOrderedClause(const OMPOrderedClause *C) {
    330   if (auto *Num = C->getNumForLoops())
    331     Profiler->VisitStmt(Num);
    332 }
    333 
    334 void OMPClauseProfiler::VisitOMPNowaitClause(const OMPNowaitClause *) {}
    335 
    336 void OMPClauseProfiler::VisitOMPUntiedClause(const OMPUntiedClause *) {}
    337 
    338 void OMPClauseProfiler::VisitOMPMergeableClause(const OMPMergeableClause *) {}
    339 
    340 void OMPClauseProfiler::VisitOMPReadClause(const OMPReadClause *) {}
    341 
    342 void OMPClauseProfiler::VisitOMPWriteClause(const OMPWriteClause *) {}
    343 
    344 void OMPClauseProfiler::VisitOMPUpdateClause(const OMPUpdateClause *) {}
    345 
    346 void OMPClauseProfiler::VisitOMPCaptureClause(const OMPCaptureClause *) {}
    347 
    348 void OMPClauseProfiler::VisitOMPSeqCstClause(const OMPSeqCstClause *) {}
    349 
    350 void OMPClauseProfiler::VisitOMPThreadsClause(const OMPThreadsClause *) {}
    351 
    352 void OMPClauseProfiler::VisitOMPSIMDClause(const OMPSIMDClause *) {}
    353 
    354 void OMPClauseProfiler::VisitOMPNogroupClause(const OMPNogroupClause *) {}
    355 
    356 template<typename T>
    357 void OMPClauseProfiler::VisitOMPClauseList(T *Node) {
    358   for (auto *E : Node->varlists()) {
    359     if (E)
    360       Profiler->VisitStmt(E);
    361   }
    362 }
    363 
    364 void OMPClauseProfiler::VisitOMPPrivateClause(const OMPPrivateClause *C) {
    365   VisitOMPClauseList(C);
    366   for (auto *E : C->private_copies()) {
    367     if (E)
    368       Profiler->VisitStmt(E);
    369   }
    370 }
    371 void
    372 OMPClauseProfiler::VisitOMPFirstprivateClause(const OMPFirstprivateClause *C) {
    373   VisitOMPClauseList(C);
    374   VistOMPClauseWithPreInit(C);
    375   for (auto *E : C->private_copies()) {
    376     if (E)
    377       Profiler->VisitStmt(E);
    378   }
    379   for (auto *E : C->inits()) {
    380     if (E)
    381       Profiler->VisitStmt(E);
    382   }
    383 }
    384 void
    385 OMPClauseProfiler::VisitOMPLastprivateClause(const OMPLastprivateClause *C) {
    386   VisitOMPClauseList(C);
    387   VistOMPClauseWithPostUpdate(C);
    388   for (auto *E : C->source_exprs()) {
    389     if (E)
    390       Profiler->VisitStmt(E);
    391   }
    392   for (auto *E : C->destination_exprs()) {
    393     if (E)
    394       Profiler->VisitStmt(E);
    395   }
    396   for (auto *E : C->assignment_ops()) {
    397     if (E)
    398       Profiler->VisitStmt(E);
    399   }
    400 }
    401 void OMPClauseProfiler::VisitOMPSharedClause(const OMPSharedClause *C) {
    402   VisitOMPClauseList(C);
    403 }
    404 void OMPClauseProfiler::VisitOMPReductionClause(
    405                                          const OMPReductionClause *C) {
    406   Profiler->VisitNestedNameSpecifier(
    407       C->getQualifierLoc().getNestedNameSpecifier());
    408   Profiler->VisitName(C->getNameInfo().getName());
    409   VisitOMPClauseList(C);
    410   VistOMPClauseWithPostUpdate(C);
    411   for (auto *E : C->privates()) {
    412     if (E)
    413       Profiler->VisitStmt(E);
    414   }
    415   for (auto *E : C->lhs_exprs()) {
    416     if (E)
    417       Profiler->VisitStmt(E);
    418   }
    419   for (auto *E : C->rhs_exprs()) {
    420     if (E)
    421       Profiler->VisitStmt(E);
    422   }
    423   for (auto *E : C->reduction_ops()) {
    424     if (E)
    425       Profiler->VisitStmt(E);
    426   }
    427 }
    428 void OMPClauseProfiler::VisitOMPLinearClause(const OMPLinearClause *C) {
    429   VisitOMPClauseList(C);
    430   VistOMPClauseWithPostUpdate(C);
    431   for (auto *E : C->privates()) {
    432     if (E)
    433       Profiler->VisitStmt(E);
    434   }
    435   for (auto *E : C->inits()) {
    436     if (E)
    437       Profiler->VisitStmt(E);
    438   }
    439   for (auto *E : C->updates()) {
    440     if (E)
    441       Profiler->VisitStmt(E);
    442   }
    443   for (auto *E : C->finals()) {
    444     if (E)
    445       Profiler->VisitStmt(E);
    446   }
    447   if (C->getStep())
    448     Profiler->VisitStmt(C->getStep());
    449   if (C->getCalcStep())
    450     Profiler->VisitStmt(C->getCalcStep());
    451 }
    452 void OMPClauseProfiler::VisitOMPAlignedClause(const OMPAlignedClause *C) {
    453   VisitOMPClauseList(C);
    454   if (C->getAlignment())
    455     Profiler->VisitStmt(C->getAlignment());
    456 }
    457 void OMPClauseProfiler::VisitOMPCopyinClause(const OMPCopyinClause *C) {
    458   VisitOMPClauseList(C);
    459   for (auto *E : C->source_exprs()) {
    460     if (E)
    461       Profiler->VisitStmt(E);
    462   }
    463   for (auto *E : C->destination_exprs()) {
    464     if (E)
    465       Profiler->VisitStmt(E);
    466   }
    467   for (auto *E : C->assignment_ops()) {
    468     if (E)
    469       Profiler->VisitStmt(E);
    470   }
    471 }
    472 void
    473 OMPClauseProfiler::VisitOMPCopyprivateClause(const OMPCopyprivateClause *C) {
    474   VisitOMPClauseList(C);
    475   for (auto *E : C->source_exprs()) {
    476     if (E)
    477       Profiler->VisitStmt(E);
    478   }
    479   for (auto *E : C->destination_exprs()) {
    480     if (E)
    481       Profiler->VisitStmt(E);
    482   }
    483   for (auto *E : C->assignment_ops()) {
    484     if (E)
    485       Profiler->VisitStmt(E);
    486   }
    487 }
    488 void OMPClauseProfiler::VisitOMPFlushClause(const OMPFlushClause *C) {
    489   VisitOMPClauseList(C);
    490 }
    491 void OMPClauseProfiler::VisitOMPDependClause(const OMPDependClause *C) {
    492   VisitOMPClauseList(C);
    493 }
    494 void OMPClauseProfiler::VisitOMPDeviceClause(const OMPDeviceClause *C) {
    495   if (C->getDevice())
    496     Profiler->VisitStmt(C->getDevice());
    497 }
    498 void OMPClauseProfiler::VisitOMPMapClause(const OMPMapClause *C) {
    499   VisitOMPClauseList(C);
    500 }
    501 void OMPClauseProfiler::VisitOMPNumTeamsClause(const OMPNumTeamsClause *C) {
    502   if (C->getNumTeams())
    503     Profiler->VisitStmt(C->getNumTeams());
    504 }
    505 void OMPClauseProfiler::VisitOMPThreadLimitClause(
    506     const OMPThreadLimitClause *C) {
    507   if (C->getThreadLimit())
    508     Profiler->VisitStmt(C->getThreadLimit());
    509 }
    510 void OMPClauseProfiler::VisitOMPPriorityClause(const OMPPriorityClause *C) {
    511   if (C->getPriority())
    512     Profiler->VisitStmt(C->getPriority());
    513 }
    514 void OMPClauseProfiler::VisitOMPGrainsizeClause(const OMPGrainsizeClause *C) {
    515   if (C->getGrainsize())
    516     Profiler->VisitStmt(C->getGrainsize());
    517 }
    518 void OMPClauseProfiler::VisitOMPNumTasksClause(const OMPNumTasksClause *C) {
    519   if (C->getNumTasks())
    520     Profiler->VisitStmt(C->getNumTasks());
    521 }
    522 void OMPClauseProfiler::VisitOMPHintClause(const OMPHintClause *C) {
    523   if (C->getHint())
    524     Profiler->VisitStmt(C->getHint());
    525 }
    526 void OMPClauseProfiler::VisitOMPToClause(const OMPToClause *C) {
    527   VisitOMPClauseList(C);
    528 }
    529 void OMPClauseProfiler::VisitOMPFromClause(const OMPFromClause *C) {
    530   VisitOMPClauseList(C);
    531 }
    532 void OMPClauseProfiler::VisitOMPUseDevicePtrClause(
    533     const OMPUseDevicePtrClause *C) {
    534   VisitOMPClauseList(C);
    535 }
    536 void OMPClauseProfiler::VisitOMPIsDevicePtrClause(
    537     const OMPIsDevicePtrClause *C) {
    538   VisitOMPClauseList(C);
    539 }
    540 }
    541 
    542 void
    543 StmtProfiler::VisitOMPExecutableDirective(const OMPExecutableDirective *S) {
    544   VisitStmt(S);
    545   OMPClauseProfiler P(this);
    546   ArrayRef<OMPClause *> Clauses = S->clauses();
    547   for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E = Clauses.end();
    548        I != E; ++I)
    549     if (*I)
    550       P.Visit(*I);
    551 }
    552 
    553 void StmtProfiler::VisitOMPLoopDirective(const OMPLoopDirective *S) {
    554   VisitOMPExecutableDirective(S);
    555 }
    556 
    557 void StmtProfiler::VisitOMPParallelDirective(const OMPParallelDirective *S) {
    558   VisitOMPExecutableDirective(S);
    559 }
    560 
    561 void StmtProfiler::VisitOMPSimdDirective(const OMPSimdDirective *S) {
    562   VisitOMPLoopDirective(S);
    563 }
    564 
    565 void StmtProfiler::VisitOMPForDirective(const OMPForDirective *S) {
    566   VisitOMPLoopDirective(S);
    567 }
    568 
    569 void StmtProfiler::VisitOMPForSimdDirective(const OMPForSimdDirective *S) {
    570   VisitOMPLoopDirective(S);
    571 }
    572 
    573 void StmtProfiler::VisitOMPSectionsDirective(const OMPSectionsDirective *S) {
    574   VisitOMPExecutableDirective(S);
    575 }
    576 
    577 void StmtProfiler::VisitOMPSectionDirective(const OMPSectionDirective *S) {
    578   VisitOMPExecutableDirective(S);
    579 }
    580 
    581 void StmtProfiler::VisitOMPSingleDirective(const OMPSingleDirective *S) {
    582   VisitOMPExecutableDirective(S);
    583 }
    584 
    585 void StmtProfiler::VisitOMPMasterDirective(const OMPMasterDirective *S) {
    586   VisitOMPExecutableDirective(S);
    587 }
    588 
    589 void StmtProfiler::VisitOMPCriticalDirective(const OMPCriticalDirective *S) {
    590   VisitOMPExecutableDirective(S);
    591   VisitName(S->getDirectiveName().getName());
    592 }
    593 
    594 void
    595 StmtProfiler::VisitOMPParallelForDirective(const OMPParallelForDirective *S) {
    596   VisitOMPLoopDirective(S);
    597 }
    598 
    599 void StmtProfiler::VisitOMPParallelForSimdDirective(
    600     const OMPParallelForSimdDirective *S) {
    601   VisitOMPLoopDirective(S);
    602 }
    603 
    604 void StmtProfiler::VisitOMPParallelSectionsDirective(
    605     const OMPParallelSectionsDirective *S) {
    606   VisitOMPExecutableDirective(S);
    607 }
    608 
    609 void StmtProfiler::VisitOMPTaskDirective(const OMPTaskDirective *S) {
    610   VisitOMPExecutableDirective(S);
    611 }
    612 
    613 void StmtProfiler::VisitOMPTaskyieldDirective(const OMPTaskyieldDirective *S) {
    614   VisitOMPExecutableDirective(S);
    615 }
    616 
    617 void StmtProfiler::VisitOMPBarrierDirective(const OMPBarrierDirective *S) {
    618   VisitOMPExecutableDirective(S);
    619 }
    620 
    621 void StmtProfiler::VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *S) {
    622   VisitOMPExecutableDirective(S);
    623 }
    624 
    625 void StmtProfiler::VisitOMPTaskgroupDirective(const OMPTaskgroupDirective *S) {
    626   VisitOMPExecutableDirective(S);
    627 }
    628 
    629 void StmtProfiler::VisitOMPFlushDirective(const OMPFlushDirective *S) {
    630   VisitOMPExecutableDirective(S);
    631 }
    632 
    633 void StmtProfiler::VisitOMPOrderedDirective(const OMPOrderedDirective *S) {
    634   VisitOMPExecutableDirective(S);
    635 }
    636 
    637 void StmtProfiler::VisitOMPAtomicDirective(const OMPAtomicDirective *S) {
    638   VisitOMPExecutableDirective(S);
    639 }
    640 
    641 void StmtProfiler::VisitOMPTargetDirective(const OMPTargetDirective *S) {
    642   VisitOMPExecutableDirective(S);
    643 }
    644 
    645 void StmtProfiler::VisitOMPTargetDataDirective(const OMPTargetDataDirective *S) {
    646   VisitOMPExecutableDirective(S);
    647 }
    648 
    649 void StmtProfiler::VisitOMPTargetEnterDataDirective(
    650     const OMPTargetEnterDataDirective *S) {
    651   VisitOMPExecutableDirective(S);
    652 }
    653 
    654 void StmtProfiler::VisitOMPTargetExitDataDirective(
    655     const OMPTargetExitDataDirective *S) {
    656   VisitOMPExecutableDirective(S);
    657 }
    658 
    659 void StmtProfiler::VisitOMPTargetParallelDirective(
    660     const OMPTargetParallelDirective *S) {
    661   VisitOMPExecutableDirective(S);
    662 }
    663 
    664 void StmtProfiler::VisitOMPTargetParallelForDirective(
    665     const OMPTargetParallelForDirective *S) {
    666   VisitOMPExecutableDirective(S);
    667 }
    668 
    669 void StmtProfiler::VisitOMPTeamsDirective(const OMPTeamsDirective *S) {
    670   VisitOMPExecutableDirective(S);
    671 }
    672 
    673 void StmtProfiler::VisitOMPCancellationPointDirective(
    674     const OMPCancellationPointDirective *S) {
    675   VisitOMPExecutableDirective(S);
    676 }
    677 
    678 void StmtProfiler::VisitOMPCancelDirective(const OMPCancelDirective *S) {
    679   VisitOMPExecutableDirective(S);
    680 }
    681 
    682 void StmtProfiler::VisitOMPTaskLoopDirective(const OMPTaskLoopDirective *S) {
    683   VisitOMPLoopDirective(S);
    684 }
    685 
    686 void StmtProfiler::VisitOMPTaskLoopSimdDirective(
    687     const OMPTaskLoopSimdDirective *S) {
    688   VisitOMPLoopDirective(S);
    689 }
    690 
    691 void StmtProfiler::VisitOMPDistributeDirective(
    692     const OMPDistributeDirective *S) {
    693   VisitOMPLoopDirective(S);
    694 }
    695 
    696 void OMPClauseProfiler::VisitOMPDistScheduleClause(
    697     const OMPDistScheduleClause *C) {
    698   VistOMPClauseWithPreInit(C);
    699   if (auto *S = C->getChunkSize())
    700     Profiler->VisitStmt(S);
    701 }
    702 
    703 void OMPClauseProfiler::VisitOMPDefaultmapClause(const OMPDefaultmapClause *) {}
    704 
    705 void StmtProfiler::VisitOMPTargetUpdateDirective(
    706     const OMPTargetUpdateDirective *S) {
    707   VisitOMPExecutableDirective(S);
    708 }
    709 
    710 void StmtProfiler::VisitOMPDistributeParallelForDirective(
    711     const OMPDistributeParallelForDirective *S) {
    712   VisitOMPLoopDirective(S);
    713 }
    714 
    715 void StmtProfiler::VisitOMPDistributeParallelForSimdDirective(
    716     const OMPDistributeParallelForSimdDirective *S) {
    717   VisitOMPLoopDirective(S);
    718 }
    719 
    720 void StmtProfiler::VisitOMPDistributeSimdDirective(
    721     const OMPDistributeSimdDirective *S) {
    722   VisitOMPLoopDirective(S);
    723 }
    724 
    725 void StmtProfiler::VisitOMPTargetParallelForSimdDirective(
    726     const OMPTargetParallelForSimdDirective *S) {
    727   VisitOMPLoopDirective(S);
    728 }
    729 
    730 void StmtProfiler::VisitExpr(const Expr *S) {
    731   VisitStmt(S);
    732 }
    733 
    734 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
    735   VisitExpr(S);
    736   if (!Canonical)
    737     VisitNestedNameSpecifier(S->getQualifier());
    738   VisitDecl(S->getDecl());
    739   if (!Canonical)
    740     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
    741 }
    742 
    743 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
    744   VisitExpr(S);
    745   ID.AddInteger(S->getIdentType());
    746 }
    747 
    748 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
    749   VisitExpr(S);
    750   S->getValue().Profile(ID);
    751   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
    752 }
    753 
    754 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
    755   VisitExpr(S);
    756   ID.AddInteger(S->getKind());
    757   ID.AddInteger(S->getValue());
    758 }
    759 
    760 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
    761   VisitExpr(S);
    762   S->getValue().Profile(ID);
    763   ID.AddBoolean(S->isExact());
    764   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
    765 }
    766 
    767 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
    768   VisitExpr(S);
    769 }
    770 
    771 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
    772   VisitExpr(S);
    773   ID.AddString(S->getBytes());
    774   ID.AddInteger(S->getKind());
    775 }
    776 
    777 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
    778   VisitExpr(S);
    779 }
    780 
    781 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
    782   VisitExpr(S);
    783 }
    784 
    785 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
    786   VisitExpr(S);
    787   ID.AddInteger(S->getOpcode());
    788 }
    789 
    790 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
    791   VisitType(S->getTypeSourceInfo()->getType());
    792   unsigned n = S->getNumComponents();
    793   for (unsigned i = 0; i < n; ++i) {
    794     const OffsetOfNode &ON = S->getComponent(i);
    795     ID.AddInteger(ON.getKind());
    796     switch (ON.getKind()) {
    797     case OffsetOfNode::Array:
    798       // Expressions handled below.
    799       break;
    800 
    801     case OffsetOfNode::Field:
    802       VisitDecl(ON.getField());
    803       break;
    804 
    805     case OffsetOfNode::Identifier:
    806       ID.AddPointer(ON.getFieldName());
    807       break;
    808 
    809     case OffsetOfNode::Base:
    810       // These nodes are implicit, and therefore don't need profiling.
    811       break;
    812     }
    813   }
    814 
    815   VisitExpr(S);
    816 }
    817 
    818 void
    819 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
    820   VisitExpr(S);
    821   ID.AddInteger(S->getKind());
    822   if (S->isArgumentType())
    823     VisitType(S->getArgumentType());
    824 }
    825 
    826 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
    827   VisitExpr(S);
    828 }
    829 
    830 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
    831   VisitExpr(S);
    832 }
    833 
    834 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
    835   VisitExpr(S);
    836 }
    837 
    838 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
    839   VisitExpr(S);
    840   VisitDecl(S->getMemberDecl());
    841   if (!Canonical)
    842     VisitNestedNameSpecifier(S->getQualifier());
    843   ID.AddBoolean(S->isArrow());
    844 }
    845 
    846 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
    847   VisitExpr(S);
    848   ID.AddBoolean(S->isFileScope());
    849 }
    850 
    851 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
    852   VisitExpr(S);
    853 }
    854 
    855 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
    856   VisitCastExpr(S);
    857   ID.AddInteger(S->getValueKind());
    858 }
    859 
    860 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
    861   VisitCastExpr(S);
    862   VisitType(S->getTypeAsWritten());
    863 }
    864 
    865 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
    866   VisitExplicitCastExpr(S);
    867 }
    868 
    869 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
    870   VisitExpr(S);
    871   ID.AddInteger(S->getOpcode());
    872 }
    873 
    874 void
    875 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
    876   VisitBinaryOperator(S);
    877 }
    878 
    879 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
    880   VisitExpr(S);
    881 }
    882 
    883 void StmtProfiler::VisitBinaryConditionalOperator(
    884     const BinaryConditionalOperator *S) {
    885   VisitExpr(S);
    886 }
    887 
    888 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
    889   VisitExpr(S);
    890   VisitDecl(S->getLabel());
    891 }
    892 
    893 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
    894   VisitExpr(S);
    895 }
    896 
    897 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
    898   VisitExpr(S);
    899 }
    900 
    901 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
    902   VisitExpr(S);
    903 }
    904 
    905 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
    906   VisitExpr(S);
    907 }
    908 
    909 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
    910   VisitExpr(S);
    911 }
    912 
    913 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
    914   VisitExpr(S);
    915 }
    916 
    917 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
    918   if (S->getSyntacticForm()) {
    919     VisitInitListExpr(S->getSyntacticForm());
    920     return;
    921   }
    922 
    923   VisitExpr(S);
    924 }
    925 
    926 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
    927   VisitExpr(S);
    928   ID.AddBoolean(S->usesGNUSyntax());
    929   for (const DesignatedInitExpr::Designator &D : S->designators()) {
    930     if (D.isFieldDesignator()) {
    931       ID.AddInteger(0);
    932       VisitName(D.getFieldName());
    933       continue;
    934     }
    935 
    936     if (D.isArrayDesignator()) {
    937       ID.AddInteger(1);
    938     } else {
    939       assert(D.isArrayRangeDesignator());
    940       ID.AddInteger(2);
    941     }
    942     ID.AddInteger(D.getFirstExprIndex());
    943   }
    944 }
    945 
    946 // Seems that if VisitInitListExpr() only works on the syntactic form of an
    947 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
    948 void StmtProfiler::VisitDesignatedInitUpdateExpr(
    949     const DesignatedInitUpdateExpr *S) {
    950   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
    951                    "initializer");
    952 }
    953 
    954 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
    955   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
    956 }
    957 
    958 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
    959   VisitExpr(S);
    960 }
    961 
    962 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
    963   VisitExpr(S);
    964   VisitName(&S->getAccessor());
    965 }
    966 
    967 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
    968   VisitExpr(S);
    969   VisitDecl(S->getBlockDecl());
    970 }
    971 
    972 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
    973   VisitExpr(S);
    974   for (unsigned i = 0; i != S->getNumAssocs(); ++i) {
    975     QualType T = S->getAssocType(i);
    976     if (T.isNull())
    977       ID.AddPointer(nullptr);
    978     else
    979       VisitType(T);
    980     VisitExpr(S->getAssocExpr(i));
    981   }
    982 }
    983 
    984 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
    985   VisitExpr(S);
    986   for (PseudoObjectExpr::const_semantics_iterator
    987          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
    988     // Normally, we would not profile the source expressions of OVEs.
    989     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
    990       Visit(OVE->getSourceExpr());
    991 }
    992 
    993 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
    994   VisitExpr(S);
    995   ID.AddInteger(S->getOp());
    996 }
    997 
    998 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
    999                                           UnaryOperatorKind &UnaryOp,
   1000                                           BinaryOperatorKind &BinaryOp) {
   1001   switch (S->getOperator()) {
   1002   case OO_None:
   1003   case OO_New:
   1004   case OO_Delete:
   1005   case OO_Array_New:
   1006   case OO_Array_Delete:
   1007   case OO_Arrow:
   1008   case OO_Call:
   1009   case OO_Conditional:
   1010   case OO_Coawait:
   1011   case NUM_OVERLOADED_OPERATORS:
   1012     llvm_unreachable("Invalid operator call kind");
   1013 
   1014   case OO_Plus:
   1015     if (S->getNumArgs() == 1) {
   1016       UnaryOp = UO_Plus;
   1017       return Stmt::UnaryOperatorClass;
   1018     }
   1019 
   1020     BinaryOp = BO_Add;
   1021     return Stmt::BinaryOperatorClass;
   1022 
   1023   case OO_Minus:
   1024     if (S->getNumArgs() == 1) {
   1025       UnaryOp = UO_Minus;
   1026       return Stmt::UnaryOperatorClass;
   1027     }
   1028 
   1029     BinaryOp = BO_Sub;
   1030     return Stmt::BinaryOperatorClass;
   1031 
   1032   case OO_Star:
   1033     if (S->getNumArgs() == 1) {
   1034       UnaryOp = UO_Deref;
   1035       return Stmt::UnaryOperatorClass;
   1036     }
   1037 
   1038     BinaryOp = BO_Mul;
   1039     return Stmt::BinaryOperatorClass;
   1040 
   1041   case OO_Slash:
   1042     BinaryOp = BO_Div;
   1043     return Stmt::BinaryOperatorClass;
   1044 
   1045   case OO_Percent:
   1046     BinaryOp = BO_Rem;
   1047     return Stmt::BinaryOperatorClass;
   1048 
   1049   case OO_Caret:
   1050     BinaryOp = BO_Xor;
   1051     return Stmt::BinaryOperatorClass;
   1052 
   1053   case OO_Amp:
   1054     if (S->getNumArgs() == 1) {
   1055       UnaryOp = UO_AddrOf;
   1056       return Stmt::UnaryOperatorClass;
   1057     }
   1058 
   1059     BinaryOp = BO_And;
   1060     return Stmt::BinaryOperatorClass;
   1061 
   1062   case OO_Pipe:
   1063     BinaryOp = BO_Or;
   1064     return Stmt::BinaryOperatorClass;
   1065 
   1066   case OO_Tilde:
   1067     UnaryOp = UO_Not;
   1068     return Stmt::UnaryOperatorClass;
   1069 
   1070   case OO_Exclaim:
   1071     UnaryOp = UO_LNot;
   1072     return Stmt::UnaryOperatorClass;
   1073 
   1074   case OO_Equal:
   1075     BinaryOp = BO_Assign;
   1076     return Stmt::BinaryOperatorClass;
   1077 
   1078   case OO_Less:
   1079     BinaryOp = BO_LT;
   1080     return Stmt::BinaryOperatorClass;
   1081 
   1082   case OO_Greater:
   1083     BinaryOp = BO_GT;
   1084     return Stmt::BinaryOperatorClass;
   1085 
   1086   case OO_PlusEqual:
   1087     BinaryOp = BO_AddAssign;
   1088     return Stmt::CompoundAssignOperatorClass;
   1089 
   1090   case OO_MinusEqual:
   1091     BinaryOp = BO_SubAssign;
   1092     return Stmt::CompoundAssignOperatorClass;
   1093 
   1094   case OO_StarEqual:
   1095     BinaryOp = BO_MulAssign;
   1096     return Stmt::CompoundAssignOperatorClass;
   1097 
   1098   case OO_SlashEqual:
   1099     BinaryOp = BO_DivAssign;
   1100     return Stmt::CompoundAssignOperatorClass;
   1101 
   1102   case OO_PercentEqual:
   1103     BinaryOp = BO_RemAssign;
   1104     return Stmt::CompoundAssignOperatorClass;
   1105 
   1106   case OO_CaretEqual:
   1107     BinaryOp = BO_XorAssign;
   1108     return Stmt::CompoundAssignOperatorClass;
   1109 
   1110   case OO_AmpEqual:
   1111     BinaryOp = BO_AndAssign;
   1112     return Stmt::CompoundAssignOperatorClass;
   1113 
   1114   case OO_PipeEqual:
   1115     BinaryOp = BO_OrAssign;
   1116     return Stmt::CompoundAssignOperatorClass;
   1117 
   1118   case OO_LessLess:
   1119     BinaryOp = BO_Shl;
   1120     return Stmt::BinaryOperatorClass;
   1121 
   1122   case OO_GreaterGreater:
   1123     BinaryOp = BO_Shr;
   1124     return Stmt::BinaryOperatorClass;
   1125 
   1126   case OO_LessLessEqual:
   1127     BinaryOp = BO_ShlAssign;
   1128     return Stmt::CompoundAssignOperatorClass;
   1129 
   1130   case OO_GreaterGreaterEqual:
   1131     BinaryOp = BO_ShrAssign;
   1132     return Stmt::CompoundAssignOperatorClass;
   1133 
   1134   case OO_EqualEqual:
   1135     BinaryOp = BO_EQ;
   1136     return Stmt::BinaryOperatorClass;
   1137 
   1138   case OO_ExclaimEqual:
   1139     BinaryOp = BO_NE;
   1140     return Stmt::BinaryOperatorClass;
   1141 
   1142   case OO_LessEqual:
   1143     BinaryOp = BO_LE;
   1144     return Stmt::BinaryOperatorClass;
   1145 
   1146   case OO_GreaterEqual:
   1147     BinaryOp = BO_GE;
   1148     return Stmt::BinaryOperatorClass;
   1149 
   1150   case OO_AmpAmp:
   1151     BinaryOp = BO_LAnd;
   1152     return Stmt::BinaryOperatorClass;
   1153 
   1154   case OO_PipePipe:
   1155     BinaryOp = BO_LOr;
   1156     return Stmt::BinaryOperatorClass;
   1157 
   1158   case OO_PlusPlus:
   1159     UnaryOp = S->getNumArgs() == 1? UO_PreInc
   1160                                   : UO_PostInc;
   1161     return Stmt::UnaryOperatorClass;
   1162 
   1163   case OO_MinusMinus:
   1164     UnaryOp = S->getNumArgs() == 1? UO_PreDec
   1165                                   : UO_PostDec;
   1166     return Stmt::UnaryOperatorClass;
   1167 
   1168   case OO_Comma:
   1169     BinaryOp = BO_Comma;
   1170     return Stmt::BinaryOperatorClass;
   1171 
   1172   case OO_ArrowStar:
   1173     BinaryOp = BO_PtrMemI;
   1174     return Stmt::BinaryOperatorClass;
   1175 
   1176   case OO_Subscript:
   1177     return Stmt::ArraySubscriptExprClass;
   1178   }
   1179 
   1180   llvm_unreachable("Invalid overloaded operator expression");
   1181 }
   1182 
   1183 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
   1184   if (S->isTypeDependent()) {
   1185     // Type-dependent operator calls are profiled like their underlying
   1186     // syntactic operator.
   1187     UnaryOperatorKind UnaryOp = UO_Extension;
   1188     BinaryOperatorKind BinaryOp = BO_Comma;
   1189     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
   1190 
   1191     ID.AddInteger(SC);
   1192     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
   1193       Visit(S->getArg(I));
   1194     if (SC == Stmt::UnaryOperatorClass)
   1195       ID.AddInteger(UnaryOp);
   1196     else if (SC == Stmt::BinaryOperatorClass ||
   1197              SC == Stmt::CompoundAssignOperatorClass)
   1198       ID.AddInteger(BinaryOp);
   1199     else
   1200       assert(SC == Stmt::ArraySubscriptExprClass);
   1201 
   1202     return;
   1203   }
   1204 
   1205   VisitCallExpr(S);
   1206   ID.AddInteger(S->getOperator());
   1207 }
   1208 
   1209 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
   1210   VisitCallExpr(S);
   1211 }
   1212 
   1213 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
   1214   VisitCallExpr(S);
   1215 }
   1216 
   1217 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
   1218   VisitExpr(S);
   1219 }
   1220 
   1221 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
   1222   VisitExplicitCastExpr(S);
   1223 }
   1224 
   1225 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
   1226   VisitCXXNamedCastExpr(S);
   1227 }
   1228 
   1229 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
   1230   VisitCXXNamedCastExpr(S);
   1231 }
   1232 
   1233 void
   1234 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
   1235   VisitCXXNamedCastExpr(S);
   1236 }
   1237 
   1238 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
   1239   VisitCXXNamedCastExpr(S);
   1240 }
   1241 
   1242 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
   1243   VisitCallExpr(S);
   1244 }
   1245 
   1246 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
   1247   VisitExpr(S);
   1248   ID.AddBoolean(S->getValue());
   1249 }
   1250 
   1251 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
   1252   VisitExpr(S);
   1253 }
   1254 
   1255 void StmtProfiler::VisitCXXStdInitializerListExpr(
   1256     const CXXStdInitializerListExpr *S) {
   1257   VisitExpr(S);
   1258 }
   1259 
   1260 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
   1261   VisitExpr(S);
   1262   if (S->isTypeOperand())
   1263     VisitType(S->getTypeOperandSourceInfo()->getType());
   1264 }
   1265 
   1266 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
   1267   VisitExpr(S);
   1268   if (S->isTypeOperand())
   1269     VisitType(S->getTypeOperandSourceInfo()->getType());
   1270 }
   1271 
   1272 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
   1273   VisitExpr(S);
   1274   VisitDecl(S->getPropertyDecl());
   1275 }
   1276 
   1277 void StmtProfiler::VisitMSPropertySubscriptExpr(
   1278     const MSPropertySubscriptExpr *S) {
   1279   VisitExpr(S);
   1280 }
   1281 
   1282 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
   1283   VisitExpr(S);
   1284   ID.AddBoolean(S->isImplicit());
   1285 }
   1286 
   1287 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
   1288   VisitExpr(S);
   1289 }
   1290 
   1291 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
   1292   VisitExpr(S);
   1293   VisitDecl(S->getParam());
   1294 }
   1295 
   1296 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
   1297   VisitExpr(S);
   1298   VisitDecl(S->getField());
   1299 }
   1300 
   1301 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
   1302   VisitExpr(S);
   1303   VisitDecl(
   1304          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
   1305 }
   1306 
   1307 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
   1308   VisitExpr(S);
   1309   VisitDecl(S->getConstructor());
   1310   ID.AddBoolean(S->isElidable());
   1311 }
   1312 
   1313 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
   1314     const CXXInheritedCtorInitExpr *S) {
   1315   VisitExpr(S);
   1316   VisitDecl(S->getConstructor());
   1317 }
   1318 
   1319 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
   1320   VisitExplicitCastExpr(S);
   1321 }
   1322 
   1323 void
   1324 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
   1325   VisitCXXConstructExpr(S);
   1326 }
   1327 
   1328 void
   1329 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
   1330   VisitExpr(S);
   1331   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
   1332                                  CEnd = S->explicit_capture_end();
   1333        C != CEnd; ++C) {
   1334     ID.AddInteger(C->getCaptureKind());
   1335     switch (C->getCaptureKind()) {
   1336     case LCK_StarThis:
   1337     case LCK_This:
   1338       break;
   1339     case LCK_ByRef:
   1340     case LCK_ByCopy:
   1341       VisitDecl(C->getCapturedVar());
   1342       ID.AddBoolean(C->isPackExpansion());
   1343       break;
   1344     case LCK_VLAType:
   1345       llvm_unreachable("VLA type in explicit captures.");
   1346     }
   1347   }
   1348   // Note: If we actually needed to be able to match lambda
   1349   // expressions, we would have to consider parameters and return type
   1350   // here, among other things.
   1351   VisitStmt(S->getBody());
   1352 }
   1353 
   1354 void
   1355 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
   1356   VisitExpr(S);
   1357 }
   1358 
   1359 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
   1360   VisitExpr(S);
   1361   ID.AddBoolean(S->isGlobalDelete());
   1362   ID.AddBoolean(S->isArrayForm());
   1363   VisitDecl(S->getOperatorDelete());
   1364 }
   1365 
   1366 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
   1367   VisitExpr(S);
   1368   VisitType(S->getAllocatedType());
   1369   VisitDecl(S->getOperatorNew());
   1370   VisitDecl(S->getOperatorDelete());
   1371   ID.AddBoolean(S->isArray());
   1372   ID.AddInteger(S->getNumPlacementArgs());
   1373   ID.AddBoolean(S->isGlobalNew());
   1374   ID.AddBoolean(S->isParenTypeId());
   1375   ID.AddInteger(S->getInitializationStyle());
   1376 }
   1377 
   1378 void
   1379 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
   1380   VisitExpr(S);
   1381   ID.AddBoolean(S->isArrow());
   1382   VisitNestedNameSpecifier(S->getQualifier());
   1383   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
   1384   if (S->getScopeTypeInfo())
   1385     VisitType(S->getScopeTypeInfo()->getType());
   1386   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
   1387   if (S->getDestroyedTypeInfo())
   1388     VisitType(S->getDestroyedType());
   1389   else
   1390     ID.AddPointer(S->getDestroyedTypeIdentifier());
   1391 }
   1392 
   1393 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
   1394   VisitExpr(S);
   1395   VisitNestedNameSpecifier(S->getQualifier());
   1396   VisitName(S->getName());
   1397   ID.AddBoolean(S->hasExplicitTemplateArgs());
   1398   if (S->hasExplicitTemplateArgs())
   1399     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
   1400 }
   1401 
   1402 void
   1403 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
   1404   VisitOverloadExpr(S);
   1405 }
   1406 
   1407 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
   1408   VisitExpr(S);
   1409   ID.AddInteger(S->getTrait());
   1410   ID.AddInteger(S->getNumArgs());
   1411   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
   1412     VisitType(S->getArg(I)->getType());
   1413 }
   1414 
   1415 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
   1416   VisitExpr(S);
   1417   ID.AddInteger(S->getTrait());
   1418   VisitType(S->getQueriedType());
   1419 }
   1420 
   1421 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
   1422   VisitExpr(S);
   1423   ID.AddInteger(S->getTrait());
   1424   VisitExpr(S->getQueriedExpression());
   1425 }
   1426 
   1427 void StmtProfiler::VisitDependentScopeDeclRefExpr(
   1428     const DependentScopeDeclRefExpr *S) {
   1429   VisitExpr(S);
   1430   VisitName(S->getDeclName());
   1431   VisitNestedNameSpecifier(S->getQualifier());
   1432   ID.AddBoolean(S->hasExplicitTemplateArgs());
   1433   if (S->hasExplicitTemplateArgs())
   1434     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
   1435 }
   1436 
   1437 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
   1438   VisitExpr(S);
   1439 }
   1440 
   1441 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
   1442     const CXXUnresolvedConstructExpr *S) {
   1443   VisitExpr(S);
   1444   VisitType(S->getTypeAsWritten());
   1445 }
   1446 
   1447 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
   1448     const CXXDependentScopeMemberExpr *S) {
   1449   ID.AddBoolean(S->isImplicitAccess());
   1450   if (!S->isImplicitAccess()) {
   1451     VisitExpr(S);
   1452     ID.AddBoolean(S->isArrow());
   1453   }
   1454   VisitNestedNameSpecifier(S->getQualifier());
   1455   VisitName(S->getMember());
   1456   ID.AddBoolean(S->hasExplicitTemplateArgs());
   1457   if (S->hasExplicitTemplateArgs())
   1458     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
   1459 }
   1460 
   1461 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
   1462   ID.AddBoolean(S->isImplicitAccess());
   1463   if (!S->isImplicitAccess()) {
   1464     VisitExpr(S);
   1465     ID.AddBoolean(S->isArrow());
   1466   }
   1467   VisitNestedNameSpecifier(S->getQualifier());
   1468   VisitName(S->getMemberName());
   1469   ID.AddBoolean(S->hasExplicitTemplateArgs());
   1470   if (S->hasExplicitTemplateArgs())
   1471     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
   1472 }
   1473 
   1474 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
   1475   VisitExpr(S);
   1476 }
   1477 
   1478 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
   1479   VisitExpr(S);
   1480 }
   1481 
   1482 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
   1483   VisitExpr(S);
   1484   VisitDecl(S->getPack());
   1485   if (S->isPartiallySubstituted()) {
   1486     auto Args = S->getPartialArguments();
   1487     ID.AddInteger(Args.size());
   1488     for (const auto &TA : Args)
   1489       VisitTemplateArgument(TA);
   1490   } else {
   1491     ID.AddInteger(0);
   1492   }
   1493 }
   1494 
   1495 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
   1496     const SubstNonTypeTemplateParmPackExpr *S) {
   1497   VisitExpr(S);
   1498   VisitDecl(S->getParameterPack());
   1499   VisitTemplateArgument(S->getArgumentPack());
   1500 }
   1501 
   1502 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
   1503     const SubstNonTypeTemplateParmExpr *E) {
   1504   // Profile exactly as the replacement expression.
   1505   Visit(E->getReplacement());
   1506 }
   1507 
   1508 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
   1509   VisitExpr(S);
   1510   VisitDecl(S->getParameterPack());
   1511   ID.AddInteger(S->getNumExpansions());
   1512   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
   1513     VisitDecl(*I);
   1514 }
   1515 
   1516 void StmtProfiler::VisitMaterializeTemporaryExpr(
   1517                                            const MaterializeTemporaryExpr *S) {
   1518   VisitExpr(S);
   1519 }
   1520 
   1521 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
   1522   VisitExpr(S);
   1523   ID.AddInteger(S->getOperator());
   1524 }
   1525 
   1526 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
   1527   VisitStmt(S);
   1528 }
   1529 
   1530 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
   1531   VisitStmt(S);
   1532 }
   1533 
   1534 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
   1535   VisitExpr(S);
   1536 }
   1537 
   1538 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
   1539   VisitExpr(S);
   1540 }
   1541 
   1542 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
   1543   VisitExpr(E);
   1544 }
   1545 
   1546 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
   1547   VisitExpr(E);
   1548 }
   1549 
   1550 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
   1551   VisitExpr(S);
   1552 }
   1553 
   1554 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
   1555   VisitExpr(E);
   1556 }
   1557 
   1558 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
   1559   VisitExpr(E);
   1560 }
   1561 
   1562 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
   1563   VisitExpr(E);
   1564 }
   1565 
   1566 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
   1567   VisitExpr(S);
   1568   VisitType(S->getEncodedType());
   1569 }
   1570 
   1571 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
   1572   VisitExpr(S);
   1573   VisitName(S->getSelector());
   1574 }
   1575 
   1576 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
   1577   VisitExpr(S);
   1578   VisitDecl(S->getProtocol());
   1579 }
   1580 
   1581 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
   1582   VisitExpr(S);
   1583   VisitDecl(S->getDecl());
   1584   ID.AddBoolean(S->isArrow());
   1585   ID.AddBoolean(S->isFreeIvar());
   1586 }
   1587 
   1588 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
   1589   VisitExpr(S);
   1590   if (S->isImplicitProperty()) {
   1591     VisitDecl(S->getImplicitPropertyGetter());
   1592     VisitDecl(S->getImplicitPropertySetter());
   1593   } else {
   1594     VisitDecl(S->getExplicitProperty());
   1595   }
   1596   if (S->isSuperReceiver()) {
   1597     ID.AddBoolean(S->isSuperReceiver());
   1598     VisitType(S->getSuperReceiverType());
   1599   }
   1600 }
   1601 
   1602 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
   1603   VisitExpr(S);
   1604   VisitDecl(S->getAtIndexMethodDecl());
   1605   VisitDecl(S->setAtIndexMethodDecl());
   1606 }
   1607 
   1608 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
   1609   VisitExpr(S);
   1610   VisitName(S->getSelector());
   1611   VisitDecl(S->getMethodDecl());
   1612 }
   1613 
   1614 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
   1615   VisitExpr(S);
   1616   ID.AddBoolean(S->isArrow());
   1617 }
   1618 
   1619 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
   1620   VisitExpr(S);
   1621   ID.AddBoolean(S->getValue());
   1622 }
   1623 
   1624 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
   1625     const ObjCIndirectCopyRestoreExpr *S) {
   1626   VisitExpr(S);
   1627   ID.AddBoolean(S->shouldCopy());
   1628 }
   1629 
   1630 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
   1631   VisitExplicitCastExpr(S);
   1632   ID.AddBoolean(S->getBridgeKind());
   1633 }
   1634 
   1635 void StmtProfiler::VisitDecl(const Decl *D) {
   1636   ID.AddInteger(D? D->getKind() : 0);
   1637 
   1638   if (Canonical && D) {
   1639     if (const NonTypeTemplateParmDecl *NTTP =
   1640           dyn_cast<NonTypeTemplateParmDecl>(D)) {
   1641       ID.AddInteger(NTTP->getDepth());
   1642       ID.AddInteger(NTTP->getIndex());
   1643       ID.AddBoolean(NTTP->isParameterPack());
   1644       VisitType(NTTP->getType());
   1645       return;
   1646     }
   1647 
   1648     if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
   1649       // The Itanium C++ ABI uses the type, scope depth, and scope
   1650       // index of a parameter when mangling expressions that involve
   1651       // function parameters, so we will use the parameter's type for
   1652       // establishing function parameter identity. That way, our
   1653       // definition of "equivalent" (per C++ [temp.over.link]) is at
   1654       // least as strong as the definition of "equivalent" used for
   1655       // name mangling.
   1656       VisitType(Parm->getType());
   1657       ID.AddInteger(Parm->getFunctionScopeDepth());
   1658       ID.AddInteger(Parm->getFunctionScopeIndex());
   1659       return;
   1660     }
   1661 
   1662     if (const TemplateTypeParmDecl *TTP =
   1663           dyn_cast<TemplateTypeParmDecl>(D)) {
   1664       ID.AddInteger(TTP->getDepth());
   1665       ID.AddInteger(TTP->getIndex());
   1666       ID.AddBoolean(TTP->isParameterPack());
   1667       return;
   1668     }
   1669 
   1670     if (const TemplateTemplateParmDecl *TTP =
   1671           dyn_cast<TemplateTemplateParmDecl>(D)) {
   1672       ID.AddInteger(TTP->getDepth());
   1673       ID.AddInteger(TTP->getIndex());
   1674       ID.AddBoolean(TTP->isParameterPack());
   1675       return;
   1676     }
   1677   }
   1678 
   1679   ID.AddPointer(D? D->getCanonicalDecl() : nullptr);
   1680 }
   1681 
   1682 void StmtProfiler::VisitType(QualType T) {
   1683   if (Canonical)
   1684     T = Context.getCanonicalType(T);
   1685 
   1686   ID.AddPointer(T.getAsOpaquePtr());
   1687 }
   1688 
   1689 void StmtProfiler::VisitName(DeclarationName Name) {
   1690   ID.AddPointer(Name.getAsOpaquePtr());
   1691 }
   1692 
   1693 void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
   1694   if (Canonical)
   1695     NNS = Context.getCanonicalNestedNameSpecifier(NNS);
   1696   ID.AddPointer(NNS);
   1697 }
   1698 
   1699 void StmtProfiler::VisitTemplateName(TemplateName Name) {
   1700   if (Canonical)
   1701     Name = Context.getCanonicalTemplateName(Name);
   1702 
   1703   Name.Profile(ID);
   1704 }
   1705 
   1706 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
   1707                                           unsigned NumArgs) {
   1708   ID.AddInteger(NumArgs);
   1709   for (unsigned I = 0; I != NumArgs; ++I)
   1710     VisitTemplateArgument(Args[I].getArgument());
   1711 }
   1712 
   1713 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
   1714   // Mostly repetitive with TemplateArgument::Profile!
   1715   ID.AddInteger(Arg.getKind());
   1716   switch (Arg.getKind()) {
   1717   case TemplateArgument::Null:
   1718     break;
   1719 
   1720   case TemplateArgument::Type:
   1721     VisitType(Arg.getAsType());
   1722     break;
   1723 
   1724   case TemplateArgument::Template:
   1725   case TemplateArgument::TemplateExpansion:
   1726     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
   1727     break;
   1728 
   1729   case TemplateArgument::Declaration:
   1730     VisitDecl(Arg.getAsDecl());
   1731     break;
   1732 
   1733   case TemplateArgument::NullPtr:
   1734     VisitType(Arg.getNullPtrType());
   1735     break;
   1736 
   1737   case TemplateArgument::Integral:
   1738     Arg.getAsIntegral().Profile(ID);
   1739     VisitType(Arg.getIntegralType());
   1740     break;
   1741 
   1742   case TemplateArgument::Expression:
   1743     Visit(Arg.getAsExpr());
   1744     break;
   1745 
   1746   case TemplateArgument::Pack:
   1747     for (const auto &P : Arg.pack_elements())
   1748       VisitTemplateArgument(P);
   1749     break;
   1750   }
   1751 }
   1752 
   1753 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
   1754                    bool Canonical) const {
   1755   StmtProfiler Profiler(ID, Context, Canonical);
   1756   Profiler.Visit(this);
   1757 }
   1758