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/ODRHash.h"
23 #include "clang/AST/StmtVisitor.h"
24 #include "llvm/ADT/FoldingSet.h"
25 using namespace clang;
26 
27 namespace {
28   class StmtProfiler : public ConstStmtVisitor<StmtProfiler> {
29   protected:
30     llvm::FoldingSetNodeID &ID;
31     bool Canonical;
32 
33   public:
34     StmtProfiler(llvm::FoldingSetNodeID &ID, bool Canonical)
35         : ID(ID), Canonical(Canonical) {}
36 
37     virtual ~StmtProfiler() {}
38 
39     void VisitStmt(const Stmt *S);
40 
41     virtual void HandleStmtClass(Stmt::StmtClass SC) = 0;
42 
43 #define STMT(Node, Base) void Visit##Node(const Node *S);
44 #include "clang/AST/StmtNodes.inc"
45 
46     /// Visit a declaration that is referenced within an expression
47     /// or statement.
48     virtual void VisitDecl(const Decl *D) = 0;
49 
50     /// Visit a type that is referenced within an expression or
51     /// statement.
52     virtual void VisitType(QualType T) = 0;
53 
54     /// Visit a name that occurs within an expression or statement.
55     virtual void VisitName(DeclarationName Name, bool TreatAsDecl = false) = 0;
56 
57     /// Visit identifiers that are not in Decl's or Type's.
58     virtual void VisitIdentifierInfo(IdentifierInfo *II) = 0;
59 
60     /// Visit a nested-name-specifier that occurs within an expression
61     /// or statement.
62     virtual void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) = 0;
63 
64     /// Visit a template name that occurs within an expression or
65     /// statement.
66     virtual void VisitTemplateName(TemplateName Name) = 0;
67 
68     /// Visit template arguments that occur within an expression or
69     /// statement.
70     void VisitTemplateArguments(const TemplateArgumentLoc *Args,
71                                 unsigned NumArgs);
72 
73     /// Visit a single template argument.
74     void VisitTemplateArgument(const TemplateArgument &Arg);
75   };
76 
77   class StmtProfilerWithPointers : public StmtProfiler {
78     const ASTContext &Context;
79 
80   public:
81     StmtProfilerWithPointers(llvm::FoldingSetNodeID &ID,
82                              const ASTContext &Context, bool Canonical)
83         : StmtProfiler(ID, Canonical), Context(Context) {}
84   private:
85     void HandleStmtClass(Stmt::StmtClass SC) override {
86       ID.AddInteger(SC);
87     }
88 
89     void VisitDecl(const Decl *D) override {
90       ID.AddInteger(D ? D->getKind() : 0);
91 
92       if (Canonical && D) {
93         if (const NonTypeTemplateParmDecl *NTTP =
94                 dyn_cast<NonTypeTemplateParmDecl>(D)) {
95           ID.AddInteger(NTTP->getDepth());
96           ID.AddInteger(NTTP->getIndex());
97           ID.AddBoolean(NTTP->isParameterPack());
98           VisitType(NTTP->getType());
99           return;
100         }
101 
102         if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
103           // The Itanium C++ ABI uses the type, scope depth, and scope
104           // index of a parameter when mangling expressions that involve
105           // function parameters, so we will use the parameter's type for
106           // establishing function parameter identity. That way, our
107           // definition of "equivalent" (per C++ [temp.over.link]) is at
108           // least as strong as the definition of "equivalent" used for
109           // name mangling.
110           VisitType(Parm->getType());
111           ID.AddInteger(Parm->getFunctionScopeDepth());
112           ID.AddInteger(Parm->getFunctionScopeIndex());
113           return;
114         }
115 
116         if (const TemplateTypeParmDecl *TTP =
117                 dyn_cast<TemplateTypeParmDecl>(D)) {
118           ID.AddInteger(TTP->getDepth());
119           ID.AddInteger(TTP->getIndex());
120           ID.AddBoolean(TTP->isParameterPack());
121           return;
122         }
123 
124         if (const TemplateTemplateParmDecl *TTP =
125                 dyn_cast<TemplateTemplateParmDecl>(D)) {
126           ID.AddInteger(TTP->getDepth());
127           ID.AddInteger(TTP->getIndex());
128           ID.AddBoolean(TTP->isParameterPack());
129           return;
130         }
131       }
132 
133       ID.AddPointer(D ? D->getCanonicalDecl() : nullptr);
134     }
135 
136     void VisitType(QualType T) override {
137       if (Canonical && !T.isNull())
138         T = Context.getCanonicalType(T);
139 
140       ID.AddPointer(T.getAsOpaquePtr());
141     }
142 
143     void VisitName(DeclarationName Name, bool /*TreatAsDecl*/) override {
144       ID.AddPointer(Name.getAsOpaquePtr());
145     }
146 
147     void VisitIdentifierInfo(IdentifierInfo *II) override {
148       ID.AddPointer(II);
149     }
150 
151     void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) override {
152       if (Canonical)
153         NNS = Context.getCanonicalNestedNameSpecifier(NNS);
154       ID.AddPointer(NNS);
155     }
156 
157     void VisitTemplateName(TemplateName Name) override {
158       if (Canonical)
159         Name = Context.getCanonicalTemplateName(Name);
160 
161       Name.Profile(ID);
162     }
163   };
164 
165   class StmtProfilerWithoutPointers : public StmtProfiler {
166     ODRHash &Hash;
167   public:
168     StmtProfilerWithoutPointers(llvm::FoldingSetNodeID &ID, ODRHash &Hash)
169         : StmtProfiler(ID, false), Hash(Hash) {}
170 
171   private:
172     void HandleStmtClass(Stmt::StmtClass SC) override {
173       if (SC == Stmt::UnresolvedLookupExprClass) {
174         // Pretend that the name looked up is a Decl due to how templates
175         // handle some Decl lookups.
176         ID.AddInteger(Stmt::DeclRefExprClass);
177       } else {
178         ID.AddInteger(SC);
179       }
180     }
181 
182     void VisitType(QualType T) override {
183       Hash.AddQualType(T);
184     }
185 
186     void VisitName(DeclarationName Name, bool TreatAsDecl) override {
187       if (TreatAsDecl) {
188         // A Decl can be null, so each Decl is preceded by a boolean to
189         // store its nullness.  Add a boolean here to match.
190         ID.AddBoolean(true);
191       }
192       Hash.AddDeclarationName(Name, TreatAsDecl);
193     }
194     void VisitIdentifierInfo(IdentifierInfo *II) override {
195       ID.AddBoolean(II);
196       if (II) {
197         Hash.AddIdentifierInfo(II);
198       }
199     }
200     void VisitDecl(const Decl *D) override {
201       ID.AddBoolean(D);
202       if (D) {
203         Hash.AddDecl(D);
204       }
205     }
206     void VisitTemplateName(TemplateName Name) override {
207       Hash.AddTemplateName(Name);
208     }
209     void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) override {
210       ID.AddBoolean(NNS);
211       if (NNS) {
212         Hash.AddNestedNameSpecifier(NNS);
213       }
214     }
215   };
216 }
217 
218 void StmtProfiler::VisitStmt(const Stmt *S) {
219   assert(S && "Requires non-null Stmt pointer");
220 
221   HandleStmtClass(S->getStmtClass());
222 
223   for (const Stmt *SubStmt : S->children()) {
224     if (SubStmt)
225       Visit(SubStmt);
226     else
227       ID.AddInteger(0);
228   }
229 }
230 
231 void StmtProfiler::VisitDeclStmt(const DeclStmt *S) {
232   VisitStmt(S);
233   for (const auto *D : S->decls())
234     VisitDecl(D);
235 }
236 
237 void StmtProfiler::VisitNullStmt(const NullStmt *S) {
238   VisitStmt(S);
239 }
240 
241 void StmtProfiler::VisitCompoundStmt(const CompoundStmt *S) {
242   VisitStmt(S);
243 }
244 
245 void StmtProfiler::VisitCaseStmt(const CaseStmt *S) {
246   VisitStmt(S);
247 }
248 
249 void StmtProfiler::VisitDefaultStmt(const DefaultStmt *S) {
250   VisitStmt(S);
251 }
252 
253 void StmtProfiler::VisitLabelStmt(const LabelStmt *S) {
254   VisitStmt(S);
255   VisitDecl(S->getDecl());
256 }
257 
258 void StmtProfiler::VisitAttributedStmt(const AttributedStmt *S) {
259   VisitStmt(S);
260   // TODO: maybe visit attributes?
261 }
262 
263 void StmtProfiler::VisitIfStmt(const IfStmt *S) {
264   VisitStmt(S);
265   VisitDecl(S->getConditionVariable());
266 }
267 
268 void StmtProfiler::VisitSwitchStmt(const SwitchStmt *S) {
269   VisitStmt(S);
270   VisitDecl(S->getConditionVariable());
271 }
272 
273 void StmtProfiler::VisitWhileStmt(const WhileStmt *S) {
274   VisitStmt(S);
275   VisitDecl(S->getConditionVariable());
276 }
277 
278 void StmtProfiler::VisitDoStmt(const DoStmt *S) {
279   VisitStmt(S);
280 }
281 
282 void StmtProfiler::VisitForStmt(const ForStmt *S) {
283   VisitStmt(S);
284 }
285 
286 void StmtProfiler::VisitGotoStmt(const GotoStmt *S) {
287   VisitStmt(S);
288   VisitDecl(S->getLabel());
289 }
290 
291 void StmtProfiler::VisitIndirectGotoStmt(const IndirectGotoStmt *S) {
292   VisitStmt(S);
293 }
294 
295 void StmtProfiler::VisitContinueStmt(const ContinueStmt *S) {
296   VisitStmt(S);
297 }
298 
299 void StmtProfiler::VisitBreakStmt(const BreakStmt *S) {
300   VisitStmt(S);
301 }
302 
303 void StmtProfiler::VisitReturnStmt(const ReturnStmt *S) {
304   VisitStmt(S);
305 }
306 
307 void StmtProfiler::VisitGCCAsmStmt(const GCCAsmStmt *S) {
308   VisitStmt(S);
309   ID.AddBoolean(S->isVolatile());
310   ID.AddBoolean(S->isSimple());
311   VisitStringLiteral(S->getAsmString());
312   ID.AddInteger(S->getNumOutputs());
313   for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
314     ID.AddString(S->getOutputName(I));
315     VisitStringLiteral(S->getOutputConstraintLiteral(I));
316   }
317   ID.AddInteger(S->getNumInputs());
318   for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
319     ID.AddString(S->getInputName(I));
320     VisitStringLiteral(S->getInputConstraintLiteral(I));
321   }
322   ID.AddInteger(S->getNumClobbers());
323   for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
324     VisitStringLiteral(S->getClobberStringLiteral(I));
325 }
326 
327 void StmtProfiler::VisitMSAsmStmt(const MSAsmStmt *S) {
328   // FIXME: Implement MS style inline asm statement profiler.
329   VisitStmt(S);
330 }
331 
332 void StmtProfiler::VisitCXXCatchStmt(const CXXCatchStmt *S) {
333   VisitStmt(S);
334   VisitType(S->getCaughtType());
335 }
336 
337 void StmtProfiler::VisitCXXTryStmt(const CXXTryStmt *S) {
338   VisitStmt(S);
339 }
340 
341 void StmtProfiler::VisitCXXForRangeStmt(const CXXForRangeStmt *S) {
342   VisitStmt(S);
343 }
344 
345 void StmtProfiler::VisitMSDependentExistsStmt(const MSDependentExistsStmt *S) {
346   VisitStmt(S);
347   ID.AddBoolean(S->isIfExists());
348   VisitNestedNameSpecifier(S->getQualifierLoc().getNestedNameSpecifier());
349   VisitName(S->getNameInfo().getName());
350 }
351 
352 void StmtProfiler::VisitSEHTryStmt(const SEHTryStmt *S) {
353   VisitStmt(S);
354 }
355 
356 void StmtProfiler::VisitSEHFinallyStmt(const SEHFinallyStmt *S) {
357   VisitStmt(S);
358 }
359 
360 void StmtProfiler::VisitSEHExceptStmt(const SEHExceptStmt *S) {
361   VisitStmt(S);
362 }
363 
364 void StmtProfiler::VisitSEHLeaveStmt(const SEHLeaveStmt *S) {
365   VisitStmt(S);
366 }
367 
368 void StmtProfiler::VisitCapturedStmt(const CapturedStmt *S) {
369   VisitStmt(S);
370 }
371 
372 void StmtProfiler::VisitObjCForCollectionStmt(const ObjCForCollectionStmt *S) {
373   VisitStmt(S);
374 }
375 
376 void StmtProfiler::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *S) {
377   VisitStmt(S);
378   ID.AddBoolean(S->hasEllipsis());
379   if (S->getCatchParamDecl())
380     VisitType(S->getCatchParamDecl()->getType());
381 }
382 
383 void StmtProfiler::VisitObjCAtFinallyStmt(const ObjCAtFinallyStmt *S) {
384   VisitStmt(S);
385 }
386 
387 void StmtProfiler::VisitObjCAtTryStmt(const ObjCAtTryStmt *S) {
388   VisitStmt(S);
389 }
390 
391 void
392 StmtProfiler::VisitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt *S) {
393   VisitStmt(S);
394 }
395 
396 void StmtProfiler::VisitObjCAtThrowStmt(const ObjCAtThrowStmt *S) {
397   VisitStmt(S);
398 }
399 
400 void
401 StmtProfiler::VisitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt *S) {
402   VisitStmt(S);
403 }
404 
405 namespace {
406 class OMPClauseProfiler : public ConstOMPClauseVisitor<OMPClauseProfiler> {
407   StmtProfiler *Profiler;
408   /// Process clauses with list of variables.
409   template <typename T>
410   void VisitOMPClauseList(T *Node);
411 
412 public:
413   OMPClauseProfiler(StmtProfiler *P) : Profiler(P) { }
414 #define OPENMP_CLAUSE(Name, Class)                                             \
415   void Visit##Class(const Class *C);
416 #include "clang/Basic/OpenMPKinds.def"
417   void VistOMPClauseWithPreInit(const OMPClauseWithPreInit *C);
418   void VistOMPClauseWithPostUpdate(const OMPClauseWithPostUpdate *C);
419 };
420 
421 void OMPClauseProfiler::VistOMPClauseWithPreInit(
422     const OMPClauseWithPreInit *C) {
423   if (auto *S = C->getPreInitStmt())
424     Profiler->VisitStmt(S);
425 }
426 
427 void OMPClauseProfiler::VistOMPClauseWithPostUpdate(
428     const OMPClauseWithPostUpdate *C) {
429   VistOMPClauseWithPreInit(C);
430   if (auto *E = C->getPostUpdateExpr())
431     Profiler->VisitStmt(E);
432 }
433 
434 void OMPClauseProfiler::VisitOMPIfClause(const OMPIfClause *C) {
435   VistOMPClauseWithPreInit(C);
436   if (C->getCondition())
437     Profiler->VisitStmt(C->getCondition());
438 }
439 
440 void OMPClauseProfiler::VisitOMPFinalClause(const OMPFinalClause *C) {
441   if (C->getCondition())
442     Profiler->VisitStmt(C->getCondition());
443 }
444 
445 void OMPClauseProfiler::VisitOMPNumThreadsClause(const OMPNumThreadsClause *C) {
446   VistOMPClauseWithPreInit(C);
447   if (C->getNumThreads())
448     Profiler->VisitStmt(C->getNumThreads());
449 }
450 
451 void OMPClauseProfiler::VisitOMPSafelenClause(const OMPSafelenClause *C) {
452   if (C->getSafelen())
453     Profiler->VisitStmt(C->getSafelen());
454 }
455 
456 void OMPClauseProfiler::VisitOMPSimdlenClause(const OMPSimdlenClause *C) {
457   if (C->getSimdlen())
458     Profiler->VisitStmt(C->getSimdlen());
459 }
460 
461 void OMPClauseProfiler::VisitOMPCollapseClause(const OMPCollapseClause *C) {
462   if (C->getNumForLoops())
463     Profiler->VisitStmt(C->getNumForLoops());
464 }
465 
466 void OMPClauseProfiler::VisitOMPDefaultClause(const OMPDefaultClause *C) { }
467 
468 void OMPClauseProfiler::VisitOMPProcBindClause(const OMPProcBindClause *C) { }
469 
470 void OMPClauseProfiler::VisitOMPUnifiedAddressClause(
471     const OMPUnifiedAddressClause *C) {}
472 
473 void OMPClauseProfiler::VisitOMPUnifiedSharedMemoryClause(
474     const OMPUnifiedSharedMemoryClause *C) {}
475 
476 void OMPClauseProfiler::VisitOMPReverseOffloadClause(
477     const OMPReverseOffloadClause *C) {}
478 
479 void OMPClauseProfiler::VisitOMPDynamicAllocatorsClause(
480     const OMPDynamicAllocatorsClause *C) {}
481 
482 void OMPClauseProfiler::VisitOMPAtomicDefaultMemOrderClause(
483     const OMPAtomicDefaultMemOrderClause *C) {}
484 
485 void OMPClauseProfiler::VisitOMPScheduleClause(const OMPScheduleClause *C) {
486   VistOMPClauseWithPreInit(C);
487   if (auto *S = C->getChunkSize())
488     Profiler->VisitStmt(S);
489 }
490 
491 void OMPClauseProfiler::VisitOMPOrderedClause(const OMPOrderedClause *C) {
492   if (auto *Num = C->getNumForLoops())
493     Profiler->VisitStmt(Num);
494 }
495 
496 void OMPClauseProfiler::VisitOMPNowaitClause(const OMPNowaitClause *) {}
497 
498 void OMPClauseProfiler::VisitOMPUntiedClause(const OMPUntiedClause *) {}
499 
500 void OMPClauseProfiler::VisitOMPMergeableClause(const OMPMergeableClause *) {}
501 
502 void OMPClauseProfiler::VisitOMPReadClause(const OMPReadClause *) {}
503 
504 void OMPClauseProfiler::VisitOMPWriteClause(const OMPWriteClause *) {}
505 
506 void OMPClauseProfiler::VisitOMPUpdateClause(const OMPUpdateClause *) {}
507 
508 void OMPClauseProfiler::VisitOMPCaptureClause(const OMPCaptureClause *) {}
509 
510 void OMPClauseProfiler::VisitOMPSeqCstClause(const OMPSeqCstClause *) {}
511 
512 void OMPClauseProfiler::VisitOMPThreadsClause(const OMPThreadsClause *) {}
513 
514 void OMPClauseProfiler::VisitOMPSIMDClause(const OMPSIMDClause *) {}
515 
516 void OMPClauseProfiler::VisitOMPNogroupClause(const OMPNogroupClause *) {}
517 
518 template<typename T>
519 void OMPClauseProfiler::VisitOMPClauseList(T *Node) {
520   for (auto *E : Node->varlists()) {
521     if (E)
522       Profiler->VisitStmt(E);
523   }
524 }
525 
526 void OMPClauseProfiler::VisitOMPPrivateClause(const OMPPrivateClause *C) {
527   VisitOMPClauseList(C);
528   for (auto *E : C->private_copies()) {
529     if (E)
530       Profiler->VisitStmt(E);
531   }
532 }
533 void
534 OMPClauseProfiler::VisitOMPFirstprivateClause(const OMPFirstprivateClause *C) {
535   VisitOMPClauseList(C);
536   VistOMPClauseWithPreInit(C);
537   for (auto *E : C->private_copies()) {
538     if (E)
539       Profiler->VisitStmt(E);
540   }
541   for (auto *E : C->inits()) {
542     if (E)
543       Profiler->VisitStmt(E);
544   }
545 }
546 void
547 OMPClauseProfiler::VisitOMPLastprivateClause(const OMPLastprivateClause *C) {
548   VisitOMPClauseList(C);
549   VistOMPClauseWithPostUpdate(C);
550   for (auto *E : C->source_exprs()) {
551     if (E)
552       Profiler->VisitStmt(E);
553   }
554   for (auto *E : C->destination_exprs()) {
555     if (E)
556       Profiler->VisitStmt(E);
557   }
558   for (auto *E : C->assignment_ops()) {
559     if (E)
560       Profiler->VisitStmt(E);
561   }
562 }
563 void OMPClauseProfiler::VisitOMPSharedClause(const OMPSharedClause *C) {
564   VisitOMPClauseList(C);
565 }
566 void OMPClauseProfiler::VisitOMPReductionClause(
567                                          const OMPReductionClause *C) {
568   Profiler->VisitNestedNameSpecifier(
569       C->getQualifierLoc().getNestedNameSpecifier());
570   Profiler->VisitName(C->getNameInfo().getName());
571   VisitOMPClauseList(C);
572   VistOMPClauseWithPostUpdate(C);
573   for (auto *E : C->privates()) {
574     if (E)
575       Profiler->VisitStmt(E);
576   }
577   for (auto *E : C->lhs_exprs()) {
578     if (E)
579       Profiler->VisitStmt(E);
580   }
581   for (auto *E : C->rhs_exprs()) {
582     if (E)
583       Profiler->VisitStmt(E);
584   }
585   for (auto *E : C->reduction_ops()) {
586     if (E)
587       Profiler->VisitStmt(E);
588   }
589 }
590 void OMPClauseProfiler::VisitOMPTaskReductionClause(
591     const OMPTaskReductionClause *C) {
592   Profiler->VisitNestedNameSpecifier(
593       C->getQualifierLoc().getNestedNameSpecifier());
594   Profiler->VisitName(C->getNameInfo().getName());
595   VisitOMPClauseList(C);
596   VistOMPClauseWithPostUpdate(C);
597   for (auto *E : C->privates()) {
598     if (E)
599       Profiler->VisitStmt(E);
600   }
601   for (auto *E : C->lhs_exprs()) {
602     if (E)
603       Profiler->VisitStmt(E);
604   }
605   for (auto *E : C->rhs_exprs()) {
606     if (E)
607       Profiler->VisitStmt(E);
608   }
609   for (auto *E : C->reduction_ops()) {
610     if (E)
611       Profiler->VisitStmt(E);
612   }
613 }
614 void OMPClauseProfiler::VisitOMPInReductionClause(
615     const OMPInReductionClause *C) {
616   Profiler->VisitNestedNameSpecifier(
617       C->getQualifierLoc().getNestedNameSpecifier());
618   Profiler->VisitName(C->getNameInfo().getName());
619   VisitOMPClauseList(C);
620   VistOMPClauseWithPostUpdate(C);
621   for (auto *E : C->privates()) {
622     if (E)
623       Profiler->VisitStmt(E);
624   }
625   for (auto *E : C->lhs_exprs()) {
626     if (E)
627       Profiler->VisitStmt(E);
628   }
629   for (auto *E : C->rhs_exprs()) {
630     if (E)
631       Profiler->VisitStmt(E);
632   }
633   for (auto *E : C->reduction_ops()) {
634     if (E)
635       Profiler->VisitStmt(E);
636   }
637   for (auto *E : C->taskgroup_descriptors()) {
638     if (E)
639       Profiler->VisitStmt(E);
640   }
641 }
642 void OMPClauseProfiler::VisitOMPLinearClause(const OMPLinearClause *C) {
643   VisitOMPClauseList(C);
644   VistOMPClauseWithPostUpdate(C);
645   for (auto *E : C->privates()) {
646     if (E)
647       Profiler->VisitStmt(E);
648   }
649   for (auto *E : C->inits()) {
650     if (E)
651       Profiler->VisitStmt(E);
652   }
653   for (auto *E : C->updates()) {
654     if (E)
655       Profiler->VisitStmt(E);
656   }
657   for (auto *E : C->finals()) {
658     if (E)
659       Profiler->VisitStmt(E);
660   }
661   if (C->getStep())
662     Profiler->VisitStmt(C->getStep());
663   if (C->getCalcStep())
664     Profiler->VisitStmt(C->getCalcStep());
665 }
666 void OMPClauseProfiler::VisitOMPAlignedClause(const OMPAlignedClause *C) {
667   VisitOMPClauseList(C);
668   if (C->getAlignment())
669     Profiler->VisitStmt(C->getAlignment());
670 }
671 void OMPClauseProfiler::VisitOMPCopyinClause(const OMPCopyinClause *C) {
672   VisitOMPClauseList(C);
673   for (auto *E : C->source_exprs()) {
674     if (E)
675       Profiler->VisitStmt(E);
676   }
677   for (auto *E : C->destination_exprs()) {
678     if (E)
679       Profiler->VisitStmt(E);
680   }
681   for (auto *E : C->assignment_ops()) {
682     if (E)
683       Profiler->VisitStmt(E);
684   }
685 }
686 void
687 OMPClauseProfiler::VisitOMPCopyprivateClause(const OMPCopyprivateClause *C) {
688   VisitOMPClauseList(C);
689   for (auto *E : C->source_exprs()) {
690     if (E)
691       Profiler->VisitStmt(E);
692   }
693   for (auto *E : C->destination_exprs()) {
694     if (E)
695       Profiler->VisitStmt(E);
696   }
697   for (auto *E : C->assignment_ops()) {
698     if (E)
699       Profiler->VisitStmt(E);
700   }
701 }
702 void OMPClauseProfiler::VisitOMPFlushClause(const OMPFlushClause *C) {
703   VisitOMPClauseList(C);
704 }
705 void OMPClauseProfiler::VisitOMPDependClause(const OMPDependClause *C) {
706   VisitOMPClauseList(C);
707 }
708 void OMPClauseProfiler::VisitOMPDeviceClause(const OMPDeviceClause *C) {
709   if (C->getDevice())
710     Profiler->VisitStmt(C->getDevice());
711 }
712 void OMPClauseProfiler::VisitOMPMapClause(const OMPMapClause *C) {
713   VisitOMPClauseList(C);
714 }
715 void OMPClauseProfiler::VisitOMPNumTeamsClause(const OMPNumTeamsClause *C) {
716   VistOMPClauseWithPreInit(C);
717   if (C->getNumTeams())
718     Profiler->VisitStmt(C->getNumTeams());
719 }
720 void OMPClauseProfiler::VisitOMPThreadLimitClause(
721     const OMPThreadLimitClause *C) {
722   VistOMPClauseWithPreInit(C);
723   if (C->getThreadLimit())
724     Profiler->VisitStmt(C->getThreadLimit());
725 }
726 void OMPClauseProfiler::VisitOMPPriorityClause(const OMPPriorityClause *C) {
727   if (C->getPriority())
728     Profiler->VisitStmt(C->getPriority());
729 }
730 void OMPClauseProfiler::VisitOMPGrainsizeClause(const OMPGrainsizeClause *C) {
731   if (C->getGrainsize())
732     Profiler->VisitStmt(C->getGrainsize());
733 }
734 void OMPClauseProfiler::VisitOMPNumTasksClause(const OMPNumTasksClause *C) {
735   if (C->getNumTasks())
736     Profiler->VisitStmt(C->getNumTasks());
737 }
738 void OMPClauseProfiler::VisitOMPHintClause(const OMPHintClause *C) {
739   if (C->getHint())
740     Profiler->VisitStmt(C->getHint());
741 }
742 void OMPClauseProfiler::VisitOMPToClause(const OMPToClause *C) {
743   VisitOMPClauseList(C);
744 }
745 void OMPClauseProfiler::VisitOMPFromClause(const OMPFromClause *C) {
746   VisitOMPClauseList(C);
747 }
748 void OMPClauseProfiler::VisitOMPUseDevicePtrClause(
749     const OMPUseDevicePtrClause *C) {
750   VisitOMPClauseList(C);
751 }
752 void OMPClauseProfiler::VisitOMPIsDevicePtrClause(
753     const OMPIsDevicePtrClause *C) {
754   VisitOMPClauseList(C);
755 }
756 }
757 
758 void
759 StmtProfiler::VisitOMPExecutableDirective(const OMPExecutableDirective *S) {
760   VisitStmt(S);
761   OMPClauseProfiler P(this);
762   ArrayRef<OMPClause *> Clauses = S->clauses();
763   for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E = Clauses.end();
764        I != E; ++I)
765     if (*I)
766       P.Visit(*I);
767 }
768 
769 void StmtProfiler::VisitOMPLoopDirective(const OMPLoopDirective *S) {
770   VisitOMPExecutableDirective(S);
771 }
772 
773 void StmtProfiler::VisitOMPParallelDirective(const OMPParallelDirective *S) {
774   VisitOMPExecutableDirective(S);
775 }
776 
777 void StmtProfiler::VisitOMPSimdDirective(const OMPSimdDirective *S) {
778   VisitOMPLoopDirective(S);
779 }
780 
781 void StmtProfiler::VisitOMPForDirective(const OMPForDirective *S) {
782   VisitOMPLoopDirective(S);
783 }
784 
785 void StmtProfiler::VisitOMPForSimdDirective(const OMPForSimdDirective *S) {
786   VisitOMPLoopDirective(S);
787 }
788 
789 void StmtProfiler::VisitOMPSectionsDirective(const OMPSectionsDirective *S) {
790   VisitOMPExecutableDirective(S);
791 }
792 
793 void StmtProfiler::VisitOMPSectionDirective(const OMPSectionDirective *S) {
794   VisitOMPExecutableDirective(S);
795 }
796 
797 void StmtProfiler::VisitOMPSingleDirective(const OMPSingleDirective *S) {
798   VisitOMPExecutableDirective(S);
799 }
800 
801 void StmtProfiler::VisitOMPMasterDirective(const OMPMasterDirective *S) {
802   VisitOMPExecutableDirective(S);
803 }
804 
805 void StmtProfiler::VisitOMPCriticalDirective(const OMPCriticalDirective *S) {
806   VisitOMPExecutableDirective(S);
807   VisitName(S->getDirectiveName().getName());
808 }
809 
810 void
811 StmtProfiler::VisitOMPParallelForDirective(const OMPParallelForDirective *S) {
812   VisitOMPLoopDirective(S);
813 }
814 
815 void StmtProfiler::VisitOMPParallelForSimdDirective(
816     const OMPParallelForSimdDirective *S) {
817   VisitOMPLoopDirective(S);
818 }
819 
820 void StmtProfiler::VisitOMPParallelSectionsDirective(
821     const OMPParallelSectionsDirective *S) {
822   VisitOMPExecutableDirective(S);
823 }
824 
825 void StmtProfiler::VisitOMPTaskDirective(const OMPTaskDirective *S) {
826   VisitOMPExecutableDirective(S);
827 }
828 
829 void StmtProfiler::VisitOMPTaskyieldDirective(const OMPTaskyieldDirective *S) {
830   VisitOMPExecutableDirective(S);
831 }
832 
833 void StmtProfiler::VisitOMPBarrierDirective(const OMPBarrierDirective *S) {
834   VisitOMPExecutableDirective(S);
835 }
836 
837 void StmtProfiler::VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *S) {
838   VisitOMPExecutableDirective(S);
839 }
840 
841 void StmtProfiler::VisitOMPTaskgroupDirective(const OMPTaskgroupDirective *S) {
842   VisitOMPExecutableDirective(S);
843   if (const Expr *E = S->getReductionRef())
844     VisitStmt(E);
845 }
846 
847 void StmtProfiler::VisitOMPFlushDirective(const OMPFlushDirective *S) {
848   VisitOMPExecutableDirective(S);
849 }
850 
851 void StmtProfiler::VisitOMPOrderedDirective(const OMPOrderedDirective *S) {
852   VisitOMPExecutableDirective(S);
853 }
854 
855 void StmtProfiler::VisitOMPAtomicDirective(const OMPAtomicDirective *S) {
856   VisitOMPExecutableDirective(S);
857 }
858 
859 void StmtProfiler::VisitOMPTargetDirective(const OMPTargetDirective *S) {
860   VisitOMPExecutableDirective(S);
861 }
862 
863 void StmtProfiler::VisitOMPTargetDataDirective(const OMPTargetDataDirective *S) {
864   VisitOMPExecutableDirective(S);
865 }
866 
867 void StmtProfiler::VisitOMPTargetEnterDataDirective(
868     const OMPTargetEnterDataDirective *S) {
869   VisitOMPExecutableDirective(S);
870 }
871 
872 void StmtProfiler::VisitOMPTargetExitDataDirective(
873     const OMPTargetExitDataDirective *S) {
874   VisitOMPExecutableDirective(S);
875 }
876 
877 void StmtProfiler::VisitOMPTargetParallelDirective(
878     const OMPTargetParallelDirective *S) {
879   VisitOMPExecutableDirective(S);
880 }
881 
882 void StmtProfiler::VisitOMPTargetParallelForDirective(
883     const OMPTargetParallelForDirective *S) {
884   VisitOMPExecutableDirective(S);
885 }
886 
887 void StmtProfiler::VisitOMPTeamsDirective(const OMPTeamsDirective *S) {
888   VisitOMPExecutableDirective(S);
889 }
890 
891 void StmtProfiler::VisitOMPCancellationPointDirective(
892     const OMPCancellationPointDirective *S) {
893   VisitOMPExecutableDirective(S);
894 }
895 
896 void StmtProfiler::VisitOMPCancelDirective(const OMPCancelDirective *S) {
897   VisitOMPExecutableDirective(S);
898 }
899 
900 void StmtProfiler::VisitOMPTaskLoopDirective(const OMPTaskLoopDirective *S) {
901   VisitOMPLoopDirective(S);
902 }
903 
904 void StmtProfiler::VisitOMPTaskLoopSimdDirective(
905     const OMPTaskLoopSimdDirective *S) {
906   VisitOMPLoopDirective(S);
907 }
908 
909 void StmtProfiler::VisitOMPDistributeDirective(
910     const OMPDistributeDirective *S) {
911   VisitOMPLoopDirective(S);
912 }
913 
914 void OMPClauseProfiler::VisitOMPDistScheduleClause(
915     const OMPDistScheduleClause *C) {
916   VistOMPClauseWithPreInit(C);
917   if (auto *S = C->getChunkSize())
918     Profiler->VisitStmt(S);
919 }
920 
921 void OMPClauseProfiler::VisitOMPDefaultmapClause(const OMPDefaultmapClause *) {}
922 
923 void StmtProfiler::VisitOMPTargetUpdateDirective(
924     const OMPTargetUpdateDirective *S) {
925   VisitOMPExecutableDirective(S);
926 }
927 
928 void StmtProfiler::VisitOMPDistributeParallelForDirective(
929     const OMPDistributeParallelForDirective *S) {
930   VisitOMPLoopDirective(S);
931 }
932 
933 void StmtProfiler::VisitOMPDistributeParallelForSimdDirective(
934     const OMPDistributeParallelForSimdDirective *S) {
935   VisitOMPLoopDirective(S);
936 }
937 
938 void StmtProfiler::VisitOMPDistributeSimdDirective(
939     const OMPDistributeSimdDirective *S) {
940   VisitOMPLoopDirective(S);
941 }
942 
943 void StmtProfiler::VisitOMPTargetParallelForSimdDirective(
944     const OMPTargetParallelForSimdDirective *S) {
945   VisitOMPLoopDirective(S);
946 }
947 
948 void StmtProfiler::VisitOMPTargetSimdDirective(
949     const OMPTargetSimdDirective *S) {
950   VisitOMPLoopDirective(S);
951 }
952 
953 void StmtProfiler::VisitOMPTeamsDistributeDirective(
954     const OMPTeamsDistributeDirective *S) {
955   VisitOMPLoopDirective(S);
956 }
957 
958 void StmtProfiler::VisitOMPTeamsDistributeSimdDirective(
959     const OMPTeamsDistributeSimdDirective *S) {
960   VisitOMPLoopDirective(S);
961 }
962 
963 void StmtProfiler::VisitOMPTeamsDistributeParallelForSimdDirective(
964     const OMPTeamsDistributeParallelForSimdDirective *S) {
965   VisitOMPLoopDirective(S);
966 }
967 
968 void StmtProfiler::VisitOMPTeamsDistributeParallelForDirective(
969     const OMPTeamsDistributeParallelForDirective *S) {
970   VisitOMPLoopDirective(S);
971 }
972 
973 void StmtProfiler::VisitOMPTargetTeamsDirective(
974     const OMPTargetTeamsDirective *S) {
975   VisitOMPExecutableDirective(S);
976 }
977 
978 void StmtProfiler::VisitOMPTargetTeamsDistributeDirective(
979     const OMPTargetTeamsDistributeDirective *S) {
980   VisitOMPLoopDirective(S);
981 }
982 
983 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForDirective(
984     const OMPTargetTeamsDistributeParallelForDirective *S) {
985   VisitOMPLoopDirective(S);
986 }
987 
988 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
989     const OMPTargetTeamsDistributeParallelForSimdDirective *S) {
990   VisitOMPLoopDirective(S);
991 }
992 
993 void StmtProfiler::VisitOMPTargetTeamsDistributeSimdDirective(
994     const OMPTargetTeamsDistributeSimdDirective *S) {
995   VisitOMPLoopDirective(S);
996 }
997 
998 void StmtProfiler::VisitExpr(const Expr *S) {
999   VisitStmt(S);
1000 }
1001 
1002 void StmtProfiler::VisitConstantExpr(const ConstantExpr *S) {
1003   VisitExpr(S);
1004 }
1005 
1006 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
1007   VisitExpr(S);
1008   if (!Canonical)
1009     VisitNestedNameSpecifier(S->getQualifier());
1010   VisitDecl(S->getDecl());
1011   if (!Canonical) {
1012     ID.AddBoolean(S->hasExplicitTemplateArgs());
1013     if (S->hasExplicitTemplateArgs())
1014       VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1015   }
1016 }
1017 
1018 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
1019   VisitExpr(S);
1020   ID.AddInteger(S->getIdentKind());
1021 }
1022 
1023 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
1024   VisitExpr(S);
1025   S->getValue().Profile(ID);
1026   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1027 }
1028 
1029 void StmtProfiler::VisitFixedPointLiteral(const FixedPointLiteral *S) {
1030   VisitExpr(S);
1031   S->getValue().Profile(ID);
1032   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1033 }
1034 
1035 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
1036   VisitExpr(S);
1037   ID.AddInteger(S->getKind());
1038   ID.AddInteger(S->getValue());
1039 }
1040 
1041 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
1042   VisitExpr(S);
1043   S->getValue().Profile(ID);
1044   ID.AddBoolean(S->isExact());
1045   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1046 }
1047 
1048 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
1049   VisitExpr(S);
1050 }
1051 
1052 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
1053   VisitExpr(S);
1054   ID.AddString(S->getBytes());
1055   ID.AddInteger(S->getKind());
1056 }
1057 
1058 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
1059   VisitExpr(S);
1060 }
1061 
1062 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
1063   VisitExpr(S);
1064 }
1065 
1066 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
1067   VisitExpr(S);
1068   ID.AddInteger(S->getOpcode());
1069 }
1070 
1071 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
1072   VisitType(S->getTypeSourceInfo()->getType());
1073   unsigned n = S->getNumComponents();
1074   for (unsigned i = 0; i < n; ++i) {
1075     const OffsetOfNode &ON = S->getComponent(i);
1076     ID.AddInteger(ON.getKind());
1077     switch (ON.getKind()) {
1078     case OffsetOfNode::Array:
1079       // Expressions handled below.
1080       break;
1081 
1082     case OffsetOfNode::Field:
1083       VisitDecl(ON.getField());
1084       break;
1085 
1086     case OffsetOfNode::Identifier:
1087       VisitIdentifierInfo(ON.getFieldName());
1088       break;
1089 
1090     case OffsetOfNode::Base:
1091       // These nodes are implicit, and therefore don't need profiling.
1092       break;
1093     }
1094   }
1095 
1096   VisitExpr(S);
1097 }
1098 
1099 void
1100 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
1101   VisitExpr(S);
1102   ID.AddInteger(S->getKind());
1103   if (S->isArgumentType())
1104     VisitType(S->getArgumentType());
1105 }
1106 
1107 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
1108   VisitExpr(S);
1109 }
1110 
1111 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
1112   VisitExpr(S);
1113 }
1114 
1115 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
1116   VisitExpr(S);
1117 }
1118 
1119 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
1120   VisitExpr(S);
1121   VisitDecl(S->getMemberDecl());
1122   if (!Canonical)
1123     VisitNestedNameSpecifier(S->getQualifier());
1124   ID.AddBoolean(S->isArrow());
1125 }
1126 
1127 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
1128   VisitExpr(S);
1129   ID.AddBoolean(S->isFileScope());
1130 }
1131 
1132 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
1133   VisitExpr(S);
1134 }
1135 
1136 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
1137   VisitCastExpr(S);
1138   ID.AddInteger(S->getValueKind());
1139 }
1140 
1141 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
1142   VisitCastExpr(S);
1143   VisitType(S->getTypeAsWritten());
1144 }
1145 
1146 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
1147   VisitExplicitCastExpr(S);
1148 }
1149 
1150 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
1151   VisitExpr(S);
1152   ID.AddInteger(S->getOpcode());
1153 }
1154 
1155 void
1156 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
1157   VisitBinaryOperator(S);
1158 }
1159 
1160 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
1161   VisitExpr(S);
1162 }
1163 
1164 void StmtProfiler::VisitBinaryConditionalOperator(
1165     const BinaryConditionalOperator *S) {
1166   VisitExpr(S);
1167 }
1168 
1169 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
1170   VisitExpr(S);
1171   VisitDecl(S->getLabel());
1172 }
1173 
1174 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
1175   VisitExpr(S);
1176 }
1177 
1178 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
1179   VisitExpr(S);
1180 }
1181 
1182 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
1183   VisitExpr(S);
1184 }
1185 
1186 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
1187   VisitExpr(S);
1188 }
1189 
1190 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
1191   VisitExpr(S);
1192 }
1193 
1194 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
1195   VisitExpr(S);
1196 }
1197 
1198 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
1199   if (S->getSyntacticForm()) {
1200     VisitInitListExpr(S->getSyntacticForm());
1201     return;
1202   }
1203 
1204   VisitExpr(S);
1205 }
1206 
1207 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
1208   VisitExpr(S);
1209   ID.AddBoolean(S->usesGNUSyntax());
1210   for (const DesignatedInitExpr::Designator &D : S->designators()) {
1211     if (D.isFieldDesignator()) {
1212       ID.AddInteger(0);
1213       VisitName(D.getFieldName());
1214       continue;
1215     }
1216 
1217     if (D.isArrayDesignator()) {
1218       ID.AddInteger(1);
1219     } else {
1220       assert(D.isArrayRangeDesignator());
1221       ID.AddInteger(2);
1222     }
1223     ID.AddInteger(D.getFirstExprIndex());
1224   }
1225 }
1226 
1227 // Seems that if VisitInitListExpr() only works on the syntactic form of an
1228 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
1229 void StmtProfiler::VisitDesignatedInitUpdateExpr(
1230     const DesignatedInitUpdateExpr *S) {
1231   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
1232                    "initializer");
1233 }
1234 
1235 void StmtProfiler::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *S) {
1236   VisitExpr(S);
1237 }
1238 
1239 void StmtProfiler::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *S) {
1240   VisitExpr(S);
1241 }
1242 
1243 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
1244   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
1245 }
1246 
1247 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
1248   VisitExpr(S);
1249 }
1250 
1251 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
1252   VisitExpr(S);
1253   VisitName(&S->getAccessor());
1254 }
1255 
1256 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
1257   VisitExpr(S);
1258   VisitDecl(S->getBlockDecl());
1259 }
1260 
1261 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
1262   VisitExpr(S);
1263   for (unsigned i = 0; i != S->getNumAssocs(); ++i) {
1264     QualType T = S->getAssocType(i);
1265     if (T.isNull())
1266       ID.AddPointer(nullptr);
1267     else
1268       VisitType(T);
1269     VisitExpr(S->getAssocExpr(i));
1270   }
1271 }
1272 
1273 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
1274   VisitExpr(S);
1275   for (PseudoObjectExpr::const_semantics_iterator
1276          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
1277     // Normally, we would not profile the source expressions of OVEs.
1278     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
1279       Visit(OVE->getSourceExpr());
1280 }
1281 
1282 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
1283   VisitExpr(S);
1284   ID.AddInteger(S->getOp());
1285 }
1286 
1287 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
1288                                           UnaryOperatorKind &UnaryOp,
1289                                           BinaryOperatorKind &BinaryOp) {
1290   switch (S->getOperator()) {
1291   case OO_None:
1292   case OO_New:
1293   case OO_Delete:
1294   case OO_Array_New:
1295   case OO_Array_Delete:
1296   case OO_Arrow:
1297   case OO_Call:
1298   case OO_Conditional:
1299   case NUM_OVERLOADED_OPERATORS:
1300     llvm_unreachable("Invalid operator call kind");
1301 
1302   case OO_Plus:
1303     if (S->getNumArgs() == 1) {
1304       UnaryOp = UO_Plus;
1305       return Stmt::UnaryOperatorClass;
1306     }
1307 
1308     BinaryOp = BO_Add;
1309     return Stmt::BinaryOperatorClass;
1310 
1311   case OO_Minus:
1312     if (S->getNumArgs() == 1) {
1313       UnaryOp = UO_Minus;
1314       return Stmt::UnaryOperatorClass;
1315     }
1316 
1317     BinaryOp = BO_Sub;
1318     return Stmt::BinaryOperatorClass;
1319 
1320   case OO_Star:
1321     if (S->getNumArgs() == 1) {
1322       UnaryOp = UO_Deref;
1323       return Stmt::UnaryOperatorClass;
1324     }
1325 
1326     BinaryOp = BO_Mul;
1327     return Stmt::BinaryOperatorClass;
1328 
1329   case OO_Slash:
1330     BinaryOp = BO_Div;
1331     return Stmt::BinaryOperatorClass;
1332 
1333   case OO_Percent:
1334     BinaryOp = BO_Rem;
1335     return Stmt::BinaryOperatorClass;
1336 
1337   case OO_Caret:
1338     BinaryOp = BO_Xor;
1339     return Stmt::BinaryOperatorClass;
1340 
1341   case OO_Amp:
1342     if (S->getNumArgs() == 1) {
1343       UnaryOp = UO_AddrOf;
1344       return Stmt::UnaryOperatorClass;
1345     }
1346 
1347     BinaryOp = BO_And;
1348     return Stmt::BinaryOperatorClass;
1349 
1350   case OO_Pipe:
1351     BinaryOp = BO_Or;
1352     return Stmt::BinaryOperatorClass;
1353 
1354   case OO_Tilde:
1355     UnaryOp = UO_Not;
1356     return Stmt::UnaryOperatorClass;
1357 
1358   case OO_Exclaim:
1359     UnaryOp = UO_LNot;
1360     return Stmt::UnaryOperatorClass;
1361 
1362   case OO_Equal:
1363     BinaryOp = BO_Assign;
1364     return Stmt::BinaryOperatorClass;
1365 
1366   case OO_Less:
1367     BinaryOp = BO_LT;
1368     return Stmt::BinaryOperatorClass;
1369 
1370   case OO_Greater:
1371     BinaryOp = BO_GT;
1372     return Stmt::BinaryOperatorClass;
1373 
1374   case OO_PlusEqual:
1375     BinaryOp = BO_AddAssign;
1376     return Stmt::CompoundAssignOperatorClass;
1377 
1378   case OO_MinusEqual:
1379     BinaryOp = BO_SubAssign;
1380     return Stmt::CompoundAssignOperatorClass;
1381 
1382   case OO_StarEqual:
1383     BinaryOp = BO_MulAssign;
1384     return Stmt::CompoundAssignOperatorClass;
1385 
1386   case OO_SlashEqual:
1387     BinaryOp = BO_DivAssign;
1388     return Stmt::CompoundAssignOperatorClass;
1389 
1390   case OO_PercentEqual:
1391     BinaryOp = BO_RemAssign;
1392     return Stmt::CompoundAssignOperatorClass;
1393 
1394   case OO_CaretEqual:
1395     BinaryOp = BO_XorAssign;
1396     return Stmt::CompoundAssignOperatorClass;
1397 
1398   case OO_AmpEqual:
1399     BinaryOp = BO_AndAssign;
1400     return Stmt::CompoundAssignOperatorClass;
1401 
1402   case OO_PipeEqual:
1403     BinaryOp = BO_OrAssign;
1404     return Stmt::CompoundAssignOperatorClass;
1405 
1406   case OO_LessLess:
1407     BinaryOp = BO_Shl;
1408     return Stmt::BinaryOperatorClass;
1409 
1410   case OO_GreaterGreater:
1411     BinaryOp = BO_Shr;
1412     return Stmt::BinaryOperatorClass;
1413 
1414   case OO_LessLessEqual:
1415     BinaryOp = BO_ShlAssign;
1416     return Stmt::CompoundAssignOperatorClass;
1417 
1418   case OO_GreaterGreaterEqual:
1419     BinaryOp = BO_ShrAssign;
1420     return Stmt::CompoundAssignOperatorClass;
1421 
1422   case OO_EqualEqual:
1423     BinaryOp = BO_EQ;
1424     return Stmt::BinaryOperatorClass;
1425 
1426   case OO_ExclaimEqual:
1427     BinaryOp = BO_NE;
1428     return Stmt::BinaryOperatorClass;
1429 
1430   case OO_LessEqual:
1431     BinaryOp = BO_LE;
1432     return Stmt::BinaryOperatorClass;
1433 
1434   case OO_GreaterEqual:
1435     BinaryOp = BO_GE;
1436     return Stmt::BinaryOperatorClass;
1437 
1438   case OO_Spaceship:
1439     // FIXME: Update this once we support <=> expressions.
1440     llvm_unreachable("<=> expressions not supported yet");
1441 
1442   case OO_AmpAmp:
1443     BinaryOp = BO_LAnd;
1444     return Stmt::BinaryOperatorClass;
1445 
1446   case OO_PipePipe:
1447     BinaryOp = BO_LOr;
1448     return Stmt::BinaryOperatorClass;
1449 
1450   case OO_PlusPlus:
1451     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1452                                   : UO_PostInc;
1453     return Stmt::UnaryOperatorClass;
1454 
1455   case OO_MinusMinus:
1456     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1457                                   : UO_PostDec;
1458     return Stmt::UnaryOperatorClass;
1459 
1460   case OO_Comma:
1461     BinaryOp = BO_Comma;
1462     return Stmt::BinaryOperatorClass;
1463 
1464   case OO_ArrowStar:
1465     BinaryOp = BO_PtrMemI;
1466     return Stmt::BinaryOperatorClass;
1467 
1468   case OO_Subscript:
1469     return Stmt::ArraySubscriptExprClass;
1470 
1471   case OO_Coawait:
1472     UnaryOp = UO_Coawait;
1473     return Stmt::UnaryOperatorClass;
1474   }
1475 
1476   llvm_unreachable("Invalid overloaded operator expression");
1477 }
1478 
1479 #if defined(_MSC_VER) && !defined(__clang__)
1480 #if _MSC_VER == 1911
1481 // Work around https://developercommunity.visualstudio.com/content/problem/84002/clang-cl-when-built-with-vc-2017-crashes-cause-vc.html
1482 // MSVC 2017 update 3 miscompiles this function, and a clang built with it
1483 // will crash in stage 2 of a bootstrap build.
1484 #pragma optimize("", off)
1485 #endif
1486 #endif
1487 
1488 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1489   if (S->isTypeDependent()) {
1490     // Type-dependent operator calls are profiled like their underlying
1491     // syntactic operator.
1492     //
1493     // An operator call to operator-> is always implicit, so just skip it. The
1494     // enclosing MemberExpr will profile the actual member access.
1495     if (S->getOperator() == OO_Arrow)
1496       return Visit(S->getArg(0));
1497 
1498     UnaryOperatorKind UnaryOp = UO_Extension;
1499     BinaryOperatorKind BinaryOp = BO_Comma;
1500     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1501 
1502     ID.AddInteger(SC);
1503     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1504       Visit(S->getArg(I));
1505     if (SC == Stmt::UnaryOperatorClass)
1506       ID.AddInteger(UnaryOp);
1507     else if (SC == Stmt::BinaryOperatorClass ||
1508              SC == Stmt::CompoundAssignOperatorClass)
1509       ID.AddInteger(BinaryOp);
1510     else
1511       assert(SC == Stmt::ArraySubscriptExprClass);
1512 
1513     return;
1514   }
1515 
1516   VisitCallExpr(S);
1517   ID.AddInteger(S->getOperator());
1518 }
1519 
1520 #if defined(_MSC_VER) && !defined(__clang__)
1521 #if _MSC_VER == 1911
1522 #pragma optimize("", on)
1523 #endif
1524 #endif
1525 
1526 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1527   VisitCallExpr(S);
1528 }
1529 
1530 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1531   VisitCallExpr(S);
1532 }
1533 
1534 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1535   VisitExpr(S);
1536 }
1537 
1538 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1539   VisitExplicitCastExpr(S);
1540 }
1541 
1542 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1543   VisitCXXNamedCastExpr(S);
1544 }
1545 
1546 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1547   VisitCXXNamedCastExpr(S);
1548 }
1549 
1550 void
1551 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1552   VisitCXXNamedCastExpr(S);
1553 }
1554 
1555 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1556   VisitCXXNamedCastExpr(S);
1557 }
1558 
1559 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1560   VisitCallExpr(S);
1561 }
1562 
1563 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1564   VisitExpr(S);
1565   ID.AddBoolean(S->getValue());
1566 }
1567 
1568 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1569   VisitExpr(S);
1570 }
1571 
1572 void StmtProfiler::VisitCXXStdInitializerListExpr(
1573     const CXXStdInitializerListExpr *S) {
1574   VisitExpr(S);
1575 }
1576 
1577 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1578   VisitExpr(S);
1579   if (S->isTypeOperand())
1580     VisitType(S->getTypeOperandSourceInfo()->getType());
1581 }
1582 
1583 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1584   VisitExpr(S);
1585   if (S->isTypeOperand())
1586     VisitType(S->getTypeOperandSourceInfo()->getType());
1587 }
1588 
1589 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1590   VisitExpr(S);
1591   VisitDecl(S->getPropertyDecl());
1592 }
1593 
1594 void StmtProfiler::VisitMSPropertySubscriptExpr(
1595     const MSPropertySubscriptExpr *S) {
1596   VisitExpr(S);
1597 }
1598 
1599 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1600   VisitExpr(S);
1601   ID.AddBoolean(S->isImplicit());
1602 }
1603 
1604 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1605   VisitExpr(S);
1606 }
1607 
1608 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1609   VisitExpr(S);
1610   VisitDecl(S->getParam());
1611 }
1612 
1613 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1614   VisitExpr(S);
1615   VisitDecl(S->getField());
1616 }
1617 
1618 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1619   VisitExpr(S);
1620   VisitDecl(
1621          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1622 }
1623 
1624 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1625   VisitExpr(S);
1626   VisitDecl(S->getConstructor());
1627   ID.AddBoolean(S->isElidable());
1628 }
1629 
1630 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
1631     const CXXInheritedCtorInitExpr *S) {
1632   VisitExpr(S);
1633   VisitDecl(S->getConstructor());
1634 }
1635 
1636 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1637   VisitExplicitCastExpr(S);
1638 }
1639 
1640 void
1641 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1642   VisitCXXConstructExpr(S);
1643 }
1644 
1645 void
1646 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1647   VisitExpr(S);
1648   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1649                                  CEnd = S->explicit_capture_end();
1650        C != CEnd; ++C) {
1651     if (C->capturesVLAType())
1652       continue;
1653 
1654     ID.AddInteger(C->getCaptureKind());
1655     switch (C->getCaptureKind()) {
1656     case LCK_StarThis:
1657     case LCK_This:
1658       break;
1659     case LCK_ByRef:
1660     case LCK_ByCopy:
1661       VisitDecl(C->getCapturedVar());
1662       ID.AddBoolean(C->isPackExpansion());
1663       break;
1664     case LCK_VLAType:
1665       llvm_unreachable("VLA type in explicit captures.");
1666     }
1667   }
1668   // Note: If we actually needed to be able to match lambda
1669   // expressions, we would have to consider parameters and return type
1670   // here, among other things.
1671   VisitStmt(S->getBody());
1672 }
1673 
1674 void
1675 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1676   VisitExpr(S);
1677 }
1678 
1679 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1680   VisitExpr(S);
1681   ID.AddBoolean(S->isGlobalDelete());
1682   ID.AddBoolean(S->isArrayForm());
1683   VisitDecl(S->getOperatorDelete());
1684 }
1685 
1686 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1687   VisitExpr(S);
1688   VisitType(S->getAllocatedType());
1689   VisitDecl(S->getOperatorNew());
1690   VisitDecl(S->getOperatorDelete());
1691   ID.AddBoolean(S->isArray());
1692   ID.AddInteger(S->getNumPlacementArgs());
1693   ID.AddBoolean(S->isGlobalNew());
1694   ID.AddBoolean(S->isParenTypeId());
1695   ID.AddInteger(S->getInitializationStyle());
1696 }
1697 
1698 void
1699 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1700   VisitExpr(S);
1701   ID.AddBoolean(S->isArrow());
1702   VisitNestedNameSpecifier(S->getQualifier());
1703   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1704   if (S->getScopeTypeInfo())
1705     VisitType(S->getScopeTypeInfo()->getType());
1706   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1707   if (S->getDestroyedTypeInfo())
1708     VisitType(S->getDestroyedType());
1709   else
1710     VisitIdentifierInfo(S->getDestroyedTypeIdentifier());
1711 }
1712 
1713 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1714   VisitExpr(S);
1715   VisitNestedNameSpecifier(S->getQualifier());
1716   VisitName(S->getName(), /*TreatAsDecl*/ true);
1717   ID.AddBoolean(S->hasExplicitTemplateArgs());
1718   if (S->hasExplicitTemplateArgs())
1719     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1720 }
1721 
1722 void
1723 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1724   VisitOverloadExpr(S);
1725 }
1726 
1727 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1728   VisitExpr(S);
1729   ID.AddInteger(S->getTrait());
1730   ID.AddInteger(S->getNumArgs());
1731   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1732     VisitType(S->getArg(I)->getType());
1733 }
1734 
1735 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1736   VisitExpr(S);
1737   ID.AddInteger(S->getTrait());
1738   VisitType(S->getQueriedType());
1739 }
1740 
1741 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1742   VisitExpr(S);
1743   ID.AddInteger(S->getTrait());
1744   VisitExpr(S->getQueriedExpression());
1745 }
1746 
1747 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1748     const DependentScopeDeclRefExpr *S) {
1749   VisitExpr(S);
1750   VisitName(S->getDeclName());
1751   VisitNestedNameSpecifier(S->getQualifier());
1752   ID.AddBoolean(S->hasExplicitTemplateArgs());
1753   if (S->hasExplicitTemplateArgs())
1754     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1755 }
1756 
1757 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1758   VisitExpr(S);
1759 }
1760 
1761 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1762     const CXXUnresolvedConstructExpr *S) {
1763   VisitExpr(S);
1764   VisitType(S->getTypeAsWritten());
1765   ID.AddInteger(S->isListInitialization());
1766 }
1767 
1768 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1769     const CXXDependentScopeMemberExpr *S) {
1770   ID.AddBoolean(S->isImplicitAccess());
1771   if (!S->isImplicitAccess()) {
1772     VisitExpr(S);
1773     ID.AddBoolean(S->isArrow());
1774   }
1775   VisitNestedNameSpecifier(S->getQualifier());
1776   VisitName(S->getMember());
1777   ID.AddBoolean(S->hasExplicitTemplateArgs());
1778   if (S->hasExplicitTemplateArgs())
1779     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1780 }
1781 
1782 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1783   ID.AddBoolean(S->isImplicitAccess());
1784   if (!S->isImplicitAccess()) {
1785     VisitExpr(S);
1786     ID.AddBoolean(S->isArrow());
1787   }
1788   VisitNestedNameSpecifier(S->getQualifier());
1789   VisitName(S->getMemberName());
1790   ID.AddBoolean(S->hasExplicitTemplateArgs());
1791   if (S->hasExplicitTemplateArgs())
1792     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1793 }
1794 
1795 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1796   VisitExpr(S);
1797 }
1798 
1799 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1800   VisitExpr(S);
1801 }
1802 
1803 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1804   VisitExpr(S);
1805   VisitDecl(S->getPack());
1806   if (S->isPartiallySubstituted()) {
1807     auto Args = S->getPartialArguments();
1808     ID.AddInteger(Args.size());
1809     for (const auto &TA : Args)
1810       VisitTemplateArgument(TA);
1811   } else {
1812     ID.AddInteger(0);
1813   }
1814 }
1815 
1816 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1817     const SubstNonTypeTemplateParmPackExpr *S) {
1818   VisitExpr(S);
1819   VisitDecl(S->getParameterPack());
1820   VisitTemplateArgument(S->getArgumentPack());
1821 }
1822 
1823 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
1824     const SubstNonTypeTemplateParmExpr *E) {
1825   // Profile exactly as the replacement expression.
1826   Visit(E->getReplacement());
1827 }
1828 
1829 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
1830   VisitExpr(S);
1831   VisitDecl(S->getParameterPack());
1832   ID.AddInteger(S->getNumExpansions());
1833   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
1834     VisitDecl(*I);
1835 }
1836 
1837 void StmtProfiler::VisitMaterializeTemporaryExpr(
1838                                            const MaterializeTemporaryExpr *S) {
1839   VisitExpr(S);
1840 }
1841 
1842 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
1843   VisitExpr(S);
1844   ID.AddInteger(S->getOperator());
1845 }
1846 
1847 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
1848   VisitStmt(S);
1849 }
1850 
1851 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
1852   VisitStmt(S);
1853 }
1854 
1855 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
1856   VisitExpr(S);
1857 }
1858 
1859 void StmtProfiler::VisitDependentCoawaitExpr(const DependentCoawaitExpr *S) {
1860   VisitExpr(S);
1861 }
1862 
1863 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
1864   VisitExpr(S);
1865 }
1866 
1867 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
1868   VisitExpr(E);
1869 }
1870 
1871 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
1872   VisitExpr(E);
1873 }
1874 
1875 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
1876   VisitExpr(S);
1877 }
1878 
1879 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
1880   VisitExpr(E);
1881 }
1882 
1883 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
1884   VisitExpr(E);
1885 }
1886 
1887 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
1888   VisitExpr(E);
1889 }
1890 
1891 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
1892   VisitExpr(S);
1893   VisitType(S->getEncodedType());
1894 }
1895 
1896 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
1897   VisitExpr(S);
1898   VisitName(S->getSelector());
1899 }
1900 
1901 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
1902   VisitExpr(S);
1903   VisitDecl(S->getProtocol());
1904 }
1905 
1906 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
1907   VisitExpr(S);
1908   VisitDecl(S->getDecl());
1909   ID.AddBoolean(S->isArrow());
1910   ID.AddBoolean(S->isFreeIvar());
1911 }
1912 
1913 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
1914   VisitExpr(S);
1915   if (S->isImplicitProperty()) {
1916     VisitDecl(S->getImplicitPropertyGetter());
1917     VisitDecl(S->getImplicitPropertySetter());
1918   } else {
1919     VisitDecl(S->getExplicitProperty());
1920   }
1921   if (S->isSuperReceiver()) {
1922     ID.AddBoolean(S->isSuperReceiver());
1923     VisitType(S->getSuperReceiverType());
1924   }
1925 }
1926 
1927 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
1928   VisitExpr(S);
1929   VisitDecl(S->getAtIndexMethodDecl());
1930   VisitDecl(S->setAtIndexMethodDecl());
1931 }
1932 
1933 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
1934   VisitExpr(S);
1935   VisitName(S->getSelector());
1936   VisitDecl(S->getMethodDecl());
1937 }
1938 
1939 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
1940   VisitExpr(S);
1941   ID.AddBoolean(S->isArrow());
1942 }
1943 
1944 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
1945   VisitExpr(S);
1946   ID.AddBoolean(S->getValue());
1947 }
1948 
1949 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
1950     const ObjCIndirectCopyRestoreExpr *S) {
1951   VisitExpr(S);
1952   ID.AddBoolean(S->shouldCopy());
1953 }
1954 
1955 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
1956   VisitExplicitCastExpr(S);
1957   ID.AddBoolean(S->getBridgeKind());
1958 }
1959 
1960 void StmtProfiler::VisitObjCAvailabilityCheckExpr(
1961     const ObjCAvailabilityCheckExpr *S) {
1962   VisitExpr(S);
1963 }
1964 
1965 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
1966                                           unsigned NumArgs) {
1967   ID.AddInteger(NumArgs);
1968   for (unsigned I = 0; I != NumArgs; ++I)
1969     VisitTemplateArgument(Args[I].getArgument());
1970 }
1971 
1972 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
1973   // Mostly repetitive with TemplateArgument::Profile!
1974   ID.AddInteger(Arg.getKind());
1975   switch (Arg.getKind()) {
1976   case TemplateArgument::Null:
1977     break;
1978 
1979   case TemplateArgument::Type:
1980     VisitType(Arg.getAsType());
1981     break;
1982 
1983   case TemplateArgument::Template:
1984   case TemplateArgument::TemplateExpansion:
1985     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
1986     break;
1987 
1988   case TemplateArgument::Declaration:
1989     VisitDecl(Arg.getAsDecl());
1990     break;
1991 
1992   case TemplateArgument::NullPtr:
1993     VisitType(Arg.getNullPtrType());
1994     break;
1995 
1996   case TemplateArgument::Integral:
1997     Arg.getAsIntegral().Profile(ID);
1998     VisitType(Arg.getIntegralType());
1999     break;
2000 
2001   case TemplateArgument::Expression:
2002     Visit(Arg.getAsExpr());
2003     break;
2004 
2005   case TemplateArgument::Pack:
2006     for (const auto &P : Arg.pack_elements())
2007       VisitTemplateArgument(P);
2008     break;
2009   }
2010 }
2011 
2012 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
2013                    bool Canonical) const {
2014   StmtProfilerWithPointers Profiler(ID, Context, Canonical);
2015   Profiler.Visit(this);
2016 }
2017 
2018 void Stmt::ProcessODRHash(llvm::FoldingSetNodeID &ID,
2019                           class ODRHash &Hash) const {
2020   StmtProfilerWithoutPointers Profiler(ID, Hash);
2021   Profiler.Visit(this);
2022 }
2023