1 //===---- StmtProfile.cpp - Profile implementation for Stmt ASTs ----------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements the Stmt::Profile method, which builds a unique bit
10 // representation that identifies a statement/expression.
11 //
12 //===----------------------------------------------------------------------===//
13 #include "clang/AST/ASTContext.h"
14 #include "clang/AST/DeclCXX.h"
15 #include "clang/AST/DeclObjC.h"
16 #include "clang/AST/DeclTemplate.h"
17 #include "clang/AST/Expr.h"
18 #include "clang/AST/ExprCXX.h"
19 #include "clang/AST/ExprObjC.h"
20 #include "clang/AST/ExprOpenMP.h"
21 #include "clang/AST/ODRHash.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   protected:
29     llvm::FoldingSetNodeID &ID;
30     bool Canonical;
31 
32   public:
33     StmtProfiler(llvm::FoldingSetNodeID &ID, bool Canonical)
34         : ID(ID), Canonical(Canonical) {}
35 
36     virtual ~StmtProfiler() {}
37 
38     void VisitStmt(const Stmt *S);
39 
40     virtual void HandleStmtClass(Stmt::StmtClass SC) = 0;
41 
42 #define STMT(Node, Base) void Visit##Node(const Node *S);
43 #include "clang/AST/StmtNodes.inc"
44 
45     /// Visit a declaration that is referenced within an expression
46     /// or statement.
47     virtual void VisitDecl(const Decl *D) = 0;
48 
49     /// Visit a type that is referenced within an expression or
50     /// statement.
51     virtual void VisitType(QualType T) = 0;
52 
53     /// Visit a name that occurs within an expression or statement.
54     virtual void VisitName(DeclarationName Name, bool TreatAsDecl = false) = 0;
55 
56     /// Visit identifiers that are not in Decl's or Type's.
57     virtual void VisitIdentifierInfo(IdentifierInfo *II) = 0;
58 
59     /// Visit a nested-name-specifier that occurs within an expression
60     /// or statement.
61     virtual void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) = 0;
62 
63     /// Visit a template name that occurs within an expression or
64     /// statement.
65     virtual void VisitTemplateName(TemplateName Name) = 0;
66 
67     /// Visit template arguments that occur within an expression or
68     /// statement.
69     void VisitTemplateArguments(const TemplateArgumentLoc *Args,
70                                 unsigned NumArgs);
71 
72     /// Visit a single template argument.
73     void VisitTemplateArgument(const TemplateArgument &Arg);
74   };
75 
76   class StmtProfilerWithPointers : public StmtProfiler {
77     const ASTContext &Context;
78 
79   public:
80     StmtProfilerWithPointers(llvm::FoldingSetNodeID &ID,
81                              const ASTContext &Context, bool Canonical)
82         : StmtProfiler(ID, Canonical), Context(Context) {}
83   private:
84     void HandleStmtClass(Stmt::StmtClass SC) override {
85       ID.AddInteger(SC);
86     }
87 
88     void VisitDecl(const Decl *D) override {
89       ID.AddInteger(D ? D->getKind() : 0);
90 
91       if (Canonical && D) {
92         if (const NonTypeTemplateParmDecl *NTTP =
93                 dyn_cast<NonTypeTemplateParmDecl>(D)) {
94           ID.AddInteger(NTTP->getDepth());
95           ID.AddInteger(NTTP->getIndex());
96           ID.AddBoolean(NTTP->isParameterPack());
97           VisitType(NTTP->getType());
98           return;
99         }
100 
101         if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
102           // The Itanium C++ ABI uses the type, scope depth, and scope
103           // index of a parameter when mangling expressions that involve
104           // function parameters, so we will use the parameter's type for
105           // establishing function parameter identity. That way, our
106           // definition of "equivalent" (per C++ [temp.over.link]) is at
107           // least as strong as the definition of "equivalent" used for
108           // name mangling.
109           VisitType(Parm->getType());
110           ID.AddInteger(Parm->getFunctionScopeDepth());
111           ID.AddInteger(Parm->getFunctionScopeIndex());
112           return;
113         }
114 
115         if (const TemplateTypeParmDecl *TTP =
116                 dyn_cast<TemplateTypeParmDecl>(D)) {
117           ID.AddInteger(TTP->getDepth());
118           ID.AddInteger(TTP->getIndex());
119           ID.AddBoolean(TTP->isParameterPack());
120           return;
121         }
122 
123         if (const TemplateTemplateParmDecl *TTP =
124                 dyn_cast<TemplateTemplateParmDecl>(D)) {
125           ID.AddInteger(TTP->getDepth());
126           ID.AddInteger(TTP->getIndex());
127           ID.AddBoolean(TTP->isParameterPack());
128           return;
129         }
130       }
131 
132       ID.AddPointer(D ? D->getCanonicalDecl() : nullptr);
133     }
134 
135     void VisitType(QualType T) override {
136       if (Canonical && !T.isNull())
137         T = Context.getCanonicalType(T);
138 
139       ID.AddPointer(T.getAsOpaquePtr());
140     }
141 
142     void VisitName(DeclarationName Name, bool /*TreatAsDecl*/) override {
143       ID.AddPointer(Name.getAsOpaquePtr());
144     }
145 
146     void VisitIdentifierInfo(IdentifierInfo *II) override {
147       ID.AddPointer(II);
148     }
149 
150     void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) override {
151       if (Canonical)
152         NNS = Context.getCanonicalNestedNameSpecifier(NNS);
153       ID.AddPointer(NNS);
154     }
155 
156     void VisitTemplateName(TemplateName Name) override {
157       if (Canonical)
158         Name = Context.getCanonicalTemplateName(Name);
159 
160       Name.Profile(ID);
161     }
162   };
163 
164   class StmtProfilerWithoutPointers : public StmtProfiler {
165     ODRHash &Hash;
166   public:
167     StmtProfilerWithoutPointers(llvm::FoldingSetNodeID &ID, ODRHash &Hash)
168         : StmtProfiler(ID, false), Hash(Hash) {}
169 
170   private:
171     void HandleStmtClass(Stmt::StmtClass SC) override {
172       if (SC == Stmt::UnresolvedLookupExprClass) {
173         // Pretend that the name looked up is a Decl due to how templates
174         // handle some Decl lookups.
175         ID.AddInteger(Stmt::DeclRefExprClass);
176       } else {
177         ID.AddInteger(SC);
178       }
179     }
180 
181     void VisitType(QualType T) override {
182       Hash.AddQualType(T);
183     }
184 
185     void VisitName(DeclarationName Name, bool TreatAsDecl) override {
186       if (TreatAsDecl) {
187         // A Decl can be null, so each Decl is preceded by a boolean to
188         // store its nullness.  Add a boolean here to match.
189         ID.AddBoolean(true);
190       }
191       Hash.AddDeclarationName(Name, TreatAsDecl);
192     }
193     void VisitIdentifierInfo(IdentifierInfo *II) override {
194       ID.AddBoolean(II);
195       if (II) {
196         Hash.AddIdentifierInfo(II);
197       }
198     }
199     void VisitDecl(const Decl *D) override {
200       ID.AddBoolean(D);
201       if (D) {
202         Hash.AddDecl(D);
203       }
204     }
205     void VisitTemplateName(TemplateName Name) override {
206       Hash.AddTemplateName(Name);
207     }
208     void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) override {
209       ID.AddBoolean(NNS);
210       if (NNS) {
211         Hash.AddNestedNameSpecifier(NNS);
212       }
213     }
214   };
215 }
216 
217 void StmtProfiler::VisitStmt(const Stmt *S) {
218   assert(S && "Requires non-null Stmt pointer");
219 
220   HandleStmtClass(S->getStmtClass());
221 
222   for (const Stmt *SubStmt : S->children()) {
223     if (SubStmt)
224       Visit(SubStmt);
225     else
226       ID.AddInteger(0);
227   }
228 }
229 
230 void StmtProfiler::VisitDeclStmt(const DeclStmt *S) {
231   VisitStmt(S);
232   for (const auto *D : S->decls())
233     VisitDecl(D);
234 }
235 
236 void StmtProfiler::VisitNullStmt(const NullStmt *S) {
237   VisitStmt(S);
238 }
239 
240 void StmtProfiler::VisitCompoundStmt(const CompoundStmt *S) {
241   VisitStmt(S);
242 }
243 
244 void StmtProfiler::VisitCaseStmt(const CaseStmt *S) {
245   VisitStmt(S);
246 }
247 
248 void StmtProfiler::VisitDefaultStmt(const DefaultStmt *S) {
249   VisitStmt(S);
250 }
251 
252 void StmtProfiler::VisitLabelStmt(const LabelStmt *S) {
253   VisitStmt(S);
254   VisitDecl(S->getDecl());
255 }
256 
257 void StmtProfiler::VisitAttributedStmt(const AttributedStmt *S) {
258   VisitStmt(S);
259   // TODO: maybe visit attributes?
260 }
261 
262 void StmtProfiler::VisitIfStmt(const IfStmt *S) {
263   VisitStmt(S);
264   VisitDecl(S->getConditionVariable());
265 }
266 
267 void StmtProfiler::VisitSwitchStmt(const SwitchStmt *S) {
268   VisitStmt(S);
269   VisitDecl(S->getConditionVariable());
270 }
271 
272 void StmtProfiler::VisitWhileStmt(const WhileStmt *S) {
273   VisitStmt(S);
274   VisitDecl(S->getConditionVariable());
275 }
276 
277 void StmtProfiler::VisitDoStmt(const DoStmt *S) {
278   VisitStmt(S);
279 }
280 
281 void StmtProfiler::VisitForStmt(const ForStmt *S) {
282   VisitStmt(S);
283 }
284 
285 void StmtProfiler::VisitGotoStmt(const GotoStmt *S) {
286   VisitStmt(S);
287   VisitDecl(S->getLabel());
288 }
289 
290 void StmtProfiler::VisitIndirectGotoStmt(const IndirectGotoStmt *S) {
291   VisitStmt(S);
292 }
293 
294 void StmtProfiler::VisitContinueStmt(const ContinueStmt *S) {
295   VisitStmt(S);
296 }
297 
298 void StmtProfiler::VisitBreakStmt(const BreakStmt *S) {
299   VisitStmt(S);
300 }
301 
302 void StmtProfiler::VisitReturnStmt(const ReturnStmt *S) {
303   VisitStmt(S);
304 }
305 
306 void StmtProfiler::VisitGCCAsmStmt(const GCCAsmStmt *S) {
307   VisitStmt(S);
308   ID.AddBoolean(S->isVolatile());
309   ID.AddBoolean(S->isSimple());
310   VisitStringLiteral(S->getAsmString());
311   ID.AddInteger(S->getNumOutputs());
312   for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
313     ID.AddString(S->getOutputName(I));
314     VisitStringLiteral(S->getOutputConstraintLiteral(I));
315   }
316   ID.AddInteger(S->getNumInputs());
317   for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
318     ID.AddString(S->getInputName(I));
319     VisitStringLiteral(S->getInputConstraintLiteral(I));
320   }
321   ID.AddInteger(S->getNumClobbers());
322   for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
323     VisitStringLiteral(S->getClobberStringLiteral(I));
324   ID.AddInteger(S->getNumLabels());
325   for (auto *L : S->labels())
326     VisitDecl(L->getLabel());
327 }
328 
329 void StmtProfiler::VisitMSAsmStmt(const MSAsmStmt *S) {
330   // FIXME: Implement MS style inline asm statement profiler.
331   VisitStmt(S);
332 }
333 
334 void StmtProfiler::VisitCXXCatchStmt(const CXXCatchStmt *S) {
335   VisitStmt(S);
336   VisitType(S->getCaughtType());
337 }
338 
339 void StmtProfiler::VisitCXXTryStmt(const CXXTryStmt *S) {
340   VisitStmt(S);
341 }
342 
343 void StmtProfiler::VisitCXXForRangeStmt(const CXXForRangeStmt *S) {
344   VisitStmt(S);
345 }
346 
347 void StmtProfiler::VisitMSDependentExistsStmt(const MSDependentExistsStmt *S) {
348   VisitStmt(S);
349   ID.AddBoolean(S->isIfExists());
350   VisitNestedNameSpecifier(S->getQualifierLoc().getNestedNameSpecifier());
351   VisitName(S->getNameInfo().getName());
352 }
353 
354 void StmtProfiler::VisitSEHTryStmt(const SEHTryStmt *S) {
355   VisitStmt(S);
356 }
357 
358 void StmtProfiler::VisitSEHFinallyStmt(const SEHFinallyStmt *S) {
359   VisitStmt(S);
360 }
361 
362 void StmtProfiler::VisitSEHExceptStmt(const SEHExceptStmt *S) {
363   VisitStmt(S);
364 }
365 
366 void StmtProfiler::VisitSEHLeaveStmt(const SEHLeaveStmt *S) {
367   VisitStmt(S);
368 }
369 
370 void StmtProfiler::VisitCapturedStmt(const CapturedStmt *S) {
371   VisitStmt(S);
372 }
373 
374 void StmtProfiler::VisitObjCForCollectionStmt(const ObjCForCollectionStmt *S) {
375   VisitStmt(S);
376 }
377 
378 void StmtProfiler::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *S) {
379   VisitStmt(S);
380   ID.AddBoolean(S->hasEllipsis());
381   if (S->getCatchParamDecl())
382     VisitType(S->getCatchParamDecl()->getType());
383 }
384 
385 void StmtProfiler::VisitObjCAtFinallyStmt(const ObjCAtFinallyStmt *S) {
386   VisitStmt(S);
387 }
388 
389 void StmtProfiler::VisitObjCAtTryStmt(const ObjCAtTryStmt *S) {
390   VisitStmt(S);
391 }
392 
393 void
394 StmtProfiler::VisitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt *S) {
395   VisitStmt(S);
396 }
397 
398 void StmtProfiler::VisitObjCAtThrowStmt(const ObjCAtThrowStmt *S) {
399   VisitStmt(S);
400 }
401 
402 void
403 StmtProfiler::VisitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt *S) {
404   VisitStmt(S);
405 }
406 
407 namespace {
408 class OMPClauseProfiler : public ConstOMPClauseVisitor<OMPClauseProfiler> {
409   StmtProfiler *Profiler;
410   /// Process clauses with list of variables.
411   template <typename T>
412   void VisitOMPClauseList(T *Node);
413 
414 public:
415   OMPClauseProfiler(StmtProfiler *P) : Profiler(P) { }
416 #define OPENMP_CLAUSE(Name, Class)                                             \
417   void Visit##Class(const Class *C);
418 #include "clang/Basic/OpenMPKinds.def"
419   void VistOMPClauseWithPreInit(const OMPClauseWithPreInit *C);
420   void VistOMPClauseWithPostUpdate(const OMPClauseWithPostUpdate *C);
421 };
422 
423 void OMPClauseProfiler::VistOMPClauseWithPreInit(
424     const OMPClauseWithPreInit *C) {
425   if (auto *S = C->getPreInitStmt())
426     Profiler->VisitStmt(S);
427 }
428 
429 void OMPClauseProfiler::VistOMPClauseWithPostUpdate(
430     const OMPClauseWithPostUpdate *C) {
431   VistOMPClauseWithPreInit(C);
432   if (auto *E = C->getPostUpdateExpr())
433     Profiler->VisitStmt(E);
434 }
435 
436 void OMPClauseProfiler::VisitOMPIfClause(const OMPIfClause *C) {
437   VistOMPClauseWithPreInit(C);
438   if (C->getCondition())
439     Profiler->VisitStmt(C->getCondition());
440 }
441 
442 void OMPClauseProfiler::VisitOMPFinalClause(const OMPFinalClause *C) {
443   VistOMPClauseWithPreInit(C);
444   if (C->getCondition())
445     Profiler->VisitStmt(C->getCondition());
446 }
447 
448 void OMPClauseProfiler::VisitOMPNumThreadsClause(const OMPNumThreadsClause *C) {
449   VistOMPClauseWithPreInit(C);
450   if (C->getNumThreads())
451     Profiler->VisitStmt(C->getNumThreads());
452 }
453 
454 void OMPClauseProfiler::VisitOMPSafelenClause(const OMPSafelenClause *C) {
455   if (C->getSafelen())
456     Profiler->VisitStmt(C->getSafelen());
457 }
458 
459 void OMPClauseProfiler::VisitOMPSimdlenClause(const OMPSimdlenClause *C) {
460   if (C->getSimdlen())
461     Profiler->VisitStmt(C->getSimdlen());
462 }
463 
464 void OMPClauseProfiler::VisitOMPAllocatorClause(const OMPAllocatorClause *C) {
465   if (C->getAllocator())
466     Profiler->VisitStmt(C->getAllocator());
467 }
468 
469 void OMPClauseProfiler::VisitOMPCollapseClause(const OMPCollapseClause *C) {
470   if (C->getNumForLoops())
471     Profiler->VisitStmt(C->getNumForLoops());
472 }
473 
474 void OMPClauseProfiler::VisitOMPDefaultClause(const OMPDefaultClause *C) { }
475 
476 void OMPClauseProfiler::VisitOMPProcBindClause(const OMPProcBindClause *C) { }
477 
478 void OMPClauseProfiler::VisitOMPUnifiedAddressClause(
479     const OMPUnifiedAddressClause *C) {}
480 
481 void OMPClauseProfiler::VisitOMPUnifiedSharedMemoryClause(
482     const OMPUnifiedSharedMemoryClause *C) {}
483 
484 void OMPClauseProfiler::VisitOMPReverseOffloadClause(
485     const OMPReverseOffloadClause *C) {}
486 
487 void OMPClauseProfiler::VisitOMPDynamicAllocatorsClause(
488     const OMPDynamicAllocatorsClause *C) {}
489 
490 void OMPClauseProfiler::VisitOMPAtomicDefaultMemOrderClause(
491     const OMPAtomicDefaultMemOrderClause *C) {}
492 
493 void OMPClauseProfiler::VisitOMPScheduleClause(const OMPScheduleClause *C) {
494   VistOMPClauseWithPreInit(C);
495   if (auto *S = C->getChunkSize())
496     Profiler->VisitStmt(S);
497 }
498 
499 void OMPClauseProfiler::VisitOMPOrderedClause(const OMPOrderedClause *C) {
500   if (auto *Num = C->getNumForLoops())
501     Profiler->VisitStmt(Num);
502 }
503 
504 void OMPClauseProfiler::VisitOMPNowaitClause(const OMPNowaitClause *) {}
505 
506 void OMPClauseProfiler::VisitOMPUntiedClause(const OMPUntiedClause *) {}
507 
508 void OMPClauseProfiler::VisitOMPMergeableClause(const OMPMergeableClause *) {}
509 
510 void OMPClauseProfiler::VisitOMPReadClause(const OMPReadClause *) {}
511 
512 void OMPClauseProfiler::VisitOMPWriteClause(const OMPWriteClause *) {}
513 
514 void OMPClauseProfiler::VisitOMPUpdateClause(const OMPUpdateClause *) {}
515 
516 void OMPClauseProfiler::VisitOMPCaptureClause(const OMPCaptureClause *) {}
517 
518 void OMPClauseProfiler::VisitOMPSeqCstClause(const OMPSeqCstClause *) {}
519 
520 void OMPClauseProfiler::VisitOMPThreadsClause(const OMPThreadsClause *) {}
521 
522 void OMPClauseProfiler::VisitOMPSIMDClause(const OMPSIMDClause *) {}
523 
524 void OMPClauseProfiler::VisitOMPNogroupClause(const OMPNogroupClause *) {}
525 
526 template<typename T>
527 void OMPClauseProfiler::VisitOMPClauseList(T *Node) {
528   for (auto *E : Node->varlists()) {
529     if (E)
530       Profiler->VisitStmt(E);
531   }
532 }
533 
534 void OMPClauseProfiler::VisitOMPPrivateClause(const OMPPrivateClause *C) {
535   VisitOMPClauseList(C);
536   for (auto *E : C->private_copies()) {
537     if (E)
538       Profiler->VisitStmt(E);
539   }
540 }
541 void
542 OMPClauseProfiler::VisitOMPFirstprivateClause(const OMPFirstprivateClause *C) {
543   VisitOMPClauseList(C);
544   VistOMPClauseWithPreInit(C);
545   for (auto *E : C->private_copies()) {
546     if (E)
547       Profiler->VisitStmt(E);
548   }
549   for (auto *E : C->inits()) {
550     if (E)
551       Profiler->VisitStmt(E);
552   }
553 }
554 void
555 OMPClauseProfiler::VisitOMPLastprivateClause(const OMPLastprivateClause *C) {
556   VisitOMPClauseList(C);
557   VistOMPClauseWithPostUpdate(C);
558   for (auto *E : C->source_exprs()) {
559     if (E)
560       Profiler->VisitStmt(E);
561   }
562   for (auto *E : C->destination_exprs()) {
563     if (E)
564       Profiler->VisitStmt(E);
565   }
566   for (auto *E : C->assignment_ops()) {
567     if (E)
568       Profiler->VisitStmt(E);
569   }
570 }
571 void OMPClauseProfiler::VisitOMPSharedClause(const OMPSharedClause *C) {
572   VisitOMPClauseList(C);
573 }
574 void OMPClauseProfiler::VisitOMPReductionClause(
575                                          const OMPReductionClause *C) {
576   Profiler->VisitNestedNameSpecifier(
577       C->getQualifierLoc().getNestedNameSpecifier());
578   Profiler->VisitName(C->getNameInfo().getName());
579   VisitOMPClauseList(C);
580   VistOMPClauseWithPostUpdate(C);
581   for (auto *E : C->privates()) {
582     if (E)
583       Profiler->VisitStmt(E);
584   }
585   for (auto *E : C->lhs_exprs()) {
586     if (E)
587       Profiler->VisitStmt(E);
588   }
589   for (auto *E : C->rhs_exprs()) {
590     if (E)
591       Profiler->VisitStmt(E);
592   }
593   for (auto *E : C->reduction_ops()) {
594     if (E)
595       Profiler->VisitStmt(E);
596   }
597 }
598 void OMPClauseProfiler::VisitOMPTaskReductionClause(
599     const OMPTaskReductionClause *C) {
600   Profiler->VisitNestedNameSpecifier(
601       C->getQualifierLoc().getNestedNameSpecifier());
602   Profiler->VisitName(C->getNameInfo().getName());
603   VisitOMPClauseList(C);
604   VistOMPClauseWithPostUpdate(C);
605   for (auto *E : C->privates()) {
606     if (E)
607       Profiler->VisitStmt(E);
608   }
609   for (auto *E : C->lhs_exprs()) {
610     if (E)
611       Profiler->VisitStmt(E);
612   }
613   for (auto *E : C->rhs_exprs()) {
614     if (E)
615       Profiler->VisitStmt(E);
616   }
617   for (auto *E : C->reduction_ops()) {
618     if (E)
619       Profiler->VisitStmt(E);
620   }
621 }
622 void OMPClauseProfiler::VisitOMPInReductionClause(
623     const OMPInReductionClause *C) {
624   Profiler->VisitNestedNameSpecifier(
625       C->getQualifierLoc().getNestedNameSpecifier());
626   Profiler->VisitName(C->getNameInfo().getName());
627   VisitOMPClauseList(C);
628   VistOMPClauseWithPostUpdate(C);
629   for (auto *E : C->privates()) {
630     if (E)
631       Profiler->VisitStmt(E);
632   }
633   for (auto *E : C->lhs_exprs()) {
634     if (E)
635       Profiler->VisitStmt(E);
636   }
637   for (auto *E : C->rhs_exprs()) {
638     if (E)
639       Profiler->VisitStmt(E);
640   }
641   for (auto *E : C->reduction_ops()) {
642     if (E)
643       Profiler->VisitStmt(E);
644   }
645   for (auto *E : C->taskgroup_descriptors()) {
646     if (E)
647       Profiler->VisitStmt(E);
648   }
649 }
650 void OMPClauseProfiler::VisitOMPLinearClause(const OMPLinearClause *C) {
651   VisitOMPClauseList(C);
652   VistOMPClauseWithPostUpdate(C);
653   for (auto *E : C->privates()) {
654     if (E)
655       Profiler->VisitStmt(E);
656   }
657   for (auto *E : C->inits()) {
658     if (E)
659       Profiler->VisitStmt(E);
660   }
661   for (auto *E : C->updates()) {
662     if (E)
663       Profiler->VisitStmt(E);
664   }
665   for (auto *E : C->finals()) {
666     if (E)
667       Profiler->VisitStmt(E);
668   }
669   if (C->getStep())
670     Profiler->VisitStmt(C->getStep());
671   if (C->getCalcStep())
672     Profiler->VisitStmt(C->getCalcStep());
673 }
674 void OMPClauseProfiler::VisitOMPAlignedClause(const OMPAlignedClause *C) {
675   VisitOMPClauseList(C);
676   if (C->getAlignment())
677     Profiler->VisitStmt(C->getAlignment());
678 }
679 void OMPClauseProfiler::VisitOMPCopyinClause(const OMPCopyinClause *C) {
680   VisitOMPClauseList(C);
681   for (auto *E : C->source_exprs()) {
682     if (E)
683       Profiler->VisitStmt(E);
684   }
685   for (auto *E : C->destination_exprs()) {
686     if (E)
687       Profiler->VisitStmt(E);
688   }
689   for (auto *E : C->assignment_ops()) {
690     if (E)
691       Profiler->VisitStmt(E);
692   }
693 }
694 void
695 OMPClauseProfiler::VisitOMPCopyprivateClause(const OMPCopyprivateClause *C) {
696   VisitOMPClauseList(C);
697   for (auto *E : C->source_exprs()) {
698     if (E)
699       Profiler->VisitStmt(E);
700   }
701   for (auto *E : C->destination_exprs()) {
702     if (E)
703       Profiler->VisitStmt(E);
704   }
705   for (auto *E : C->assignment_ops()) {
706     if (E)
707       Profiler->VisitStmt(E);
708   }
709 }
710 void OMPClauseProfiler::VisitOMPFlushClause(const OMPFlushClause *C) {
711   VisitOMPClauseList(C);
712 }
713 void OMPClauseProfiler::VisitOMPDependClause(const OMPDependClause *C) {
714   VisitOMPClauseList(C);
715 }
716 void OMPClauseProfiler::VisitOMPDeviceClause(const OMPDeviceClause *C) {
717   if (C->getDevice())
718     Profiler->VisitStmt(C->getDevice());
719 }
720 void OMPClauseProfiler::VisitOMPMapClause(const OMPMapClause *C) {
721   VisitOMPClauseList(C);
722 }
723 void OMPClauseProfiler::VisitOMPAllocateClause(const OMPAllocateClause *C) {
724   if (Expr *Allocator = C->getAllocator())
725     Profiler->VisitStmt(Allocator);
726   VisitOMPClauseList(C);
727 }
728 void OMPClauseProfiler::VisitOMPNumTeamsClause(const OMPNumTeamsClause *C) {
729   VistOMPClauseWithPreInit(C);
730   if (C->getNumTeams())
731     Profiler->VisitStmt(C->getNumTeams());
732 }
733 void OMPClauseProfiler::VisitOMPThreadLimitClause(
734     const OMPThreadLimitClause *C) {
735   VistOMPClauseWithPreInit(C);
736   if (C->getThreadLimit())
737     Profiler->VisitStmt(C->getThreadLimit());
738 }
739 void OMPClauseProfiler::VisitOMPPriorityClause(const OMPPriorityClause *C) {
740   if (C->getPriority())
741     Profiler->VisitStmt(C->getPriority());
742 }
743 void OMPClauseProfiler::VisitOMPGrainsizeClause(const OMPGrainsizeClause *C) {
744   VistOMPClauseWithPreInit(C);
745   if (C->getGrainsize())
746     Profiler->VisitStmt(C->getGrainsize());
747 }
748 void OMPClauseProfiler::VisitOMPNumTasksClause(const OMPNumTasksClause *C) {
749   VistOMPClauseWithPreInit(C);
750   if (C->getNumTasks())
751     Profiler->VisitStmt(C->getNumTasks());
752 }
753 void OMPClauseProfiler::VisitOMPHintClause(const OMPHintClause *C) {
754   if (C->getHint())
755     Profiler->VisitStmt(C->getHint());
756 }
757 void OMPClauseProfiler::VisitOMPToClause(const OMPToClause *C) {
758   VisitOMPClauseList(C);
759 }
760 void OMPClauseProfiler::VisitOMPFromClause(const OMPFromClause *C) {
761   VisitOMPClauseList(C);
762 }
763 void OMPClauseProfiler::VisitOMPUseDevicePtrClause(
764     const OMPUseDevicePtrClause *C) {
765   VisitOMPClauseList(C);
766 }
767 void OMPClauseProfiler::VisitOMPIsDevicePtrClause(
768     const OMPIsDevicePtrClause *C) {
769   VisitOMPClauseList(C);
770 }
771 }
772 
773 void
774 StmtProfiler::VisitOMPExecutableDirective(const OMPExecutableDirective *S) {
775   VisitStmt(S);
776   OMPClauseProfiler P(this);
777   ArrayRef<OMPClause *> Clauses = S->clauses();
778   for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E = Clauses.end();
779        I != E; ++I)
780     if (*I)
781       P.Visit(*I);
782 }
783 
784 void StmtProfiler::VisitOMPLoopDirective(const OMPLoopDirective *S) {
785   VisitOMPExecutableDirective(S);
786 }
787 
788 void StmtProfiler::VisitOMPParallelDirective(const OMPParallelDirective *S) {
789   VisitOMPExecutableDirective(S);
790 }
791 
792 void StmtProfiler::VisitOMPSimdDirective(const OMPSimdDirective *S) {
793   VisitOMPLoopDirective(S);
794 }
795 
796 void StmtProfiler::VisitOMPForDirective(const OMPForDirective *S) {
797   VisitOMPLoopDirective(S);
798 }
799 
800 void StmtProfiler::VisitOMPForSimdDirective(const OMPForSimdDirective *S) {
801   VisitOMPLoopDirective(S);
802 }
803 
804 void StmtProfiler::VisitOMPSectionsDirective(const OMPSectionsDirective *S) {
805   VisitOMPExecutableDirective(S);
806 }
807 
808 void StmtProfiler::VisitOMPSectionDirective(const OMPSectionDirective *S) {
809   VisitOMPExecutableDirective(S);
810 }
811 
812 void StmtProfiler::VisitOMPSingleDirective(const OMPSingleDirective *S) {
813   VisitOMPExecutableDirective(S);
814 }
815 
816 void StmtProfiler::VisitOMPMasterDirective(const OMPMasterDirective *S) {
817   VisitOMPExecutableDirective(S);
818 }
819 
820 void StmtProfiler::VisitOMPCriticalDirective(const OMPCriticalDirective *S) {
821   VisitOMPExecutableDirective(S);
822   VisitName(S->getDirectiveName().getName());
823 }
824 
825 void
826 StmtProfiler::VisitOMPParallelForDirective(const OMPParallelForDirective *S) {
827   VisitOMPLoopDirective(S);
828 }
829 
830 void StmtProfiler::VisitOMPParallelForSimdDirective(
831     const OMPParallelForSimdDirective *S) {
832   VisitOMPLoopDirective(S);
833 }
834 
835 void StmtProfiler::VisitOMPParallelSectionsDirective(
836     const OMPParallelSectionsDirective *S) {
837   VisitOMPExecutableDirective(S);
838 }
839 
840 void StmtProfiler::VisitOMPTaskDirective(const OMPTaskDirective *S) {
841   VisitOMPExecutableDirective(S);
842 }
843 
844 void StmtProfiler::VisitOMPTaskyieldDirective(const OMPTaskyieldDirective *S) {
845   VisitOMPExecutableDirective(S);
846 }
847 
848 void StmtProfiler::VisitOMPBarrierDirective(const OMPBarrierDirective *S) {
849   VisitOMPExecutableDirective(S);
850 }
851 
852 void StmtProfiler::VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *S) {
853   VisitOMPExecutableDirective(S);
854 }
855 
856 void StmtProfiler::VisitOMPTaskgroupDirective(const OMPTaskgroupDirective *S) {
857   VisitOMPExecutableDirective(S);
858   if (const Expr *E = S->getReductionRef())
859     VisitStmt(E);
860 }
861 
862 void StmtProfiler::VisitOMPFlushDirective(const OMPFlushDirective *S) {
863   VisitOMPExecutableDirective(S);
864 }
865 
866 void StmtProfiler::VisitOMPOrderedDirective(const OMPOrderedDirective *S) {
867   VisitOMPExecutableDirective(S);
868 }
869 
870 void StmtProfiler::VisitOMPAtomicDirective(const OMPAtomicDirective *S) {
871   VisitOMPExecutableDirective(S);
872 }
873 
874 void StmtProfiler::VisitOMPTargetDirective(const OMPTargetDirective *S) {
875   VisitOMPExecutableDirective(S);
876 }
877 
878 void StmtProfiler::VisitOMPTargetDataDirective(const OMPTargetDataDirective *S) {
879   VisitOMPExecutableDirective(S);
880 }
881 
882 void StmtProfiler::VisitOMPTargetEnterDataDirective(
883     const OMPTargetEnterDataDirective *S) {
884   VisitOMPExecutableDirective(S);
885 }
886 
887 void StmtProfiler::VisitOMPTargetExitDataDirective(
888     const OMPTargetExitDataDirective *S) {
889   VisitOMPExecutableDirective(S);
890 }
891 
892 void StmtProfiler::VisitOMPTargetParallelDirective(
893     const OMPTargetParallelDirective *S) {
894   VisitOMPExecutableDirective(S);
895 }
896 
897 void StmtProfiler::VisitOMPTargetParallelForDirective(
898     const OMPTargetParallelForDirective *S) {
899   VisitOMPExecutableDirective(S);
900 }
901 
902 void StmtProfiler::VisitOMPTeamsDirective(const OMPTeamsDirective *S) {
903   VisitOMPExecutableDirective(S);
904 }
905 
906 void StmtProfiler::VisitOMPCancellationPointDirective(
907     const OMPCancellationPointDirective *S) {
908   VisitOMPExecutableDirective(S);
909 }
910 
911 void StmtProfiler::VisitOMPCancelDirective(const OMPCancelDirective *S) {
912   VisitOMPExecutableDirective(S);
913 }
914 
915 void StmtProfiler::VisitOMPTaskLoopDirective(const OMPTaskLoopDirective *S) {
916   VisitOMPLoopDirective(S);
917 }
918 
919 void StmtProfiler::VisitOMPTaskLoopSimdDirective(
920     const OMPTaskLoopSimdDirective *S) {
921   VisitOMPLoopDirective(S);
922 }
923 
924 void StmtProfiler::VisitOMPMasterTaskLoopDirective(
925     const OMPMasterTaskLoopDirective *S) {
926   VisitOMPLoopDirective(S);
927 }
928 
929 void StmtProfiler::VisitOMPParallelMasterTaskLoopDirective(
930     const OMPParallelMasterTaskLoopDirective *S) {
931   VisitOMPLoopDirective(S);
932 }
933 
934 void StmtProfiler::VisitOMPDistributeDirective(
935     const OMPDistributeDirective *S) {
936   VisitOMPLoopDirective(S);
937 }
938 
939 void OMPClauseProfiler::VisitOMPDistScheduleClause(
940     const OMPDistScheduleClause *C) {
941   VistOMPClauseWithPreInit(C);
942   if (auto *S = C->getChunkSize())
943     Profiler->VisitStmt(S);
944 }
945 
946 void OMPClauseProfiler::VisitOMPDefaultmapClause(const OMPDefaultmapClause *) {}
947 
948 void StmtProfiler::VisitOMPTargetUpdateDirective(
949     const OMPTargetUpdateDirective *S) {
950   VisitOMPExecutableDirective(S);
951 }
952 
953 void StmtProfiler::VisitOMPDistributeParallelForDirective(
954     const OMPDistributeParallelForDirective *S) {
955   VisitOMPLoopDirective(S);
956 }
957 
958 void StmtProfiler::VisitOMPDistributeParallelForSimdDirective(
959     const OMPDistributeParallelForSimdDirective *S) {
960   VisitOMPLoopDirective(S);
961 }
962 
963 void StmtProfiler::VisitOMPDistributeSimdDirective(
964     const OMPDistributeSimdDirective *S) {
965   VisitOMPLoopDirective(S);
966 }
967 
968 void StmtProfiler::VisitOMPTargetParallelForSimdDirective(
969     const OMPTargetParallelForSimdDirective *S) {
970   VisitOMPLoopDirective(S);
971 }
972 
973 void StmtProfiler::VisitOMPTargetSimdDirective(
974     const OMPTargetSimdDirective *S) {
975   VisitOMPLoopDirective(S);
976 }
977 
978 void StmtProfiler::VisitOMPTeamsDistributeDirective(
979     const OMPTeamsDistributeDirective *S) {
980   VisitOMPLoopDirective(S);
981 }
982 
983 void StmtProfiler::VisitOMPTeamsDistributeSimdDirective(
984     const OMPTeamsDistributeSimdDirective *S) {
985   VisitOMPLoopDirective(S);
986 }
987 
988 void StmtProfiler::VisitOMPTeamsDistributeParallelForSimdDirective(
989     const OMPTeamsDistributeParallelForSimdDirective *S) {
990   VisitOMPLoopDirective(S);
991 }
992 
993 void StmtProfiler::VisitOMPTeamsDistributeParallelForDirective(
994     const OMPTeamsDistributeParallelForDirective *S) {
995   VisitOMPLoopDirective(S);
996 }
997 
998 void StmtProfiler::VisitOMPTargetTeamsDirective(
999     const OMPTargetTeamsDirective *S) {
1000   VisitOMPExecutableDirective(S);
1001 }
1002 
1003 void StmtProfiler::VisitOMPTargetTeamsDistributeDirective(
1004     const OMPTargetTeamsDistributeDirective *S) {
1005   VisitOMPLoopDirective(S);
1006 }
1007 
1008 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForDirective(
1009     const OMPTargetTeamsDistributeParallelForDirective *S) {
1010   VisitOMPLoopDirective(S);
1011 }
1012 
1013 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
1014     const OMPTargetTeamsDistributeParallelForSimdDirective *S) {
1015   VisitOMPLoopDirective(S);
1016 }
1017 
1018 void StmtProfiler::VisitOMPTargetTeamsDistributeSimdDirective(
1019     const OMPTargetTeamsDistributeSimdDirective *S) {
1020   VisitOMPLoopDirective(S);
1021 }
1022 
1023 void StmtProfiler::VisitExpr(const Expr *S) {
1024   VisitStmt(S);
1025 }
1026 
1027 void StmtProfiler::VisitConstantExpr(const ConstantExpr *S) {
1028   VisitExpr(S);
1029 }
1030 
1031 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
1032   VisitExpr(S);
1033   if (!Canonical)
1034     VisitNestedNameSpecifier(S->getQualifier());
1035   VisitDecl(S->getDecl());
1036   if (!Canonical) {
1037     ID.AddBoolean(S->hasExplicitTemplateArgs());
1038     if (S->hasExplicitTemplateArgs())
1039       VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1040   }
1041 }
1042 
1043 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
1044   VisitExpr(S);
1045   ID.AddInteger(S->getIdentKind());
1046 }
1047 
1048 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
1049   VisitExpr(S);
1050   S->getValue().Profile(ID);
1051   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1052 }
1053 
1054 void StmtProfiler::VisitFixedPointLiteral(const FixedPointLiteral *S) {
1055   VisitExpr(S);
1056   S->getValue().Profile(ID);
1057   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1058 }
1059 
1060 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
1061   VisitExpr(S);
1062   ID.AddInteger(S->getKind());
1063   ID.AddInteger(S->getValue());
1064 }
1065 
1066 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
1067   VisitExpr(S);
1068   S->getValue().Profile(ID);
1069   ID.AddBoolean(S->isExact());
1070   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1071 }
1072 
1073 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
1074   VisitExpr(S);
1075 }
1076 
1077 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
1078   VisitExpr(S);
1079   ID.AddString(S->getBytes());
1080   ID.AddInteger(S->getKind());
1081 }
1082 
1083 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
1084   VisitExpr(S);
1085 }
1086 
1087 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
1088   VisitExpr(S);
1089 }
1090 
1091 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
1092   VisitExpr(S);
1093   ID.AddInteger(S->getOpcode());
1094 }
1095 
1096 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
1097   VisitType(S->getTypeSourceInfo()->getType());
1098   unsigned n = S->getNumComponents();
1099   for (unsigned i = 0; i < n; ++i) {
1100     const OffsetOfNode &ON = S->getComponent(i);
1101     ID.AddInteger(ON.getKind());
1102     switch (ON.getKind()) {
1103     case OffsetOfNode::Array:
1104       // Expressions handled below.
1105       break;
1106 
1107     case OffsetOfNode::Field:
1108       VisitDecl(ON.getField());
1109       break;
1110 
1111     case OffsetOfNode::Identifier:
1112       VisitIdentifierInfo(ON.getFieldName());
1113       break;
1114 
1115     case OffsetOfNode::Base:
1116       // These nodes are implicit, and therefore don't need profiling.
1117       break;
1118     }
1119   }
1120 
1121   VisitExpr(S);
1122 }
1123 
1124 void
1125 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
1126   VisitExpr(S);
1127   ID.AddInteger(S->getKind());
1128   if (S->isArgumentType())
1129     VisitType(S->getArgumentType());
1130 }
1131 
1132 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
1133   VisitExpr(S);
1134 }
1135 
1136 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
1137   VisitExpr(S);
1138 }
1139 
1140 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
1141   VisitExpr(S);
1142 }
1143 
1144 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
1145   VisitExpr(S);
1146   VisitDecl(S->getMemberDecl());
1147   if (!Canonical)
1148     VisitNestedNameSpecifier(S->getQualifier());
1149   ID.AddBoolean(S->isArrow());
1150 }
1151 
1152 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
1153   VisitExpr(S);
1154   ID.AddBoolean(S->isFileScope());
1155 }
1156 
1157 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
1158   VisitExpr(S);
1159 }
1160 
1161 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
1162   VisitCastExpr(S);
1163   ID.AddInteger(S->getValueKind());
1164 }
1165 
1166 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
1167   VisitCastExpr(S);
1168   VisitType(S->getTypeAsWritten());
1169 }
1170 
1171 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
1172   VisitExplicitCastExpr(S);
1173 }
1174 
1175 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
1176   VisitExpr(S);
1177   ID.AddInteger(S->getOpcode());
1178 }
1179 
1180 void
1181 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
1182   VisitBinaryOperator(S);
1183 }
1184 
1185 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
1186   VisitExpr(S);
1187 }
1188 
1189 void StmtProfiler::VisitBinaryConditionalOperator(
1190     const BinaryConditionalOperator *S) {
1191   VisitExpr(S);
1192 }
1193 
1194 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
1195   VisitExpr(S);
1196   VisitDecl(S->getLabel());
1197 }
1198 
1199 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
1200   VisitExpr(S);
1201 }
1202 
1203 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
1204   VisitExpr(S);
1205 }
1206 
1207 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
1208   VisitExpr(S);
1209 }
1210 
1211 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
1212   VisitExpr(S);
1213 }
1214 
1215 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
1216   VisitExpr(S);
1217 }
1218 
1219 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
1220   VisitExpr(S);
1221 }
1222 
1223 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
1224   if (S->getSyntacticForm()) {
1225     VisitInitListExpr(S->getSyntacticForm());
1226     return;
1227   }
1228 
1229   VisitExpr(S);
1230 }
1231 
1232 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
1233   VisitExpr(S);
1234   ID.AddBoolean(S->usesGNUSyntax());
1235   for (const DesignatedInitExpr::Designator &D : S->designators()) {
1236     if (D.isFieldDesignator()) {
1237       ID.AddInteger(0);
1238       VisitName(D.getFieldName());
1239       continue;
1240     }
1241 
1242     if (D.isArrayDesignator()) {
1243       ID.AddInteger(1);
1244     } else {
1245       assert(D.isArrayRangeDesignator());
1246       ID.AddInteger(2);
1247     }
1248     ID.AddInteger(D.getFirstExprIndex());
1249   }
1250 }
1251 
1252 // Seems that if VisitInitListExpr() only works on the syntactic form of an
1253 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
1254 void StmtProfiler::VisitDesignatedInitUpdateExpr(
1255     const DesignatedInitUpdateExpr *S) {
1256   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
1257                    "initializer");
1258 }
1259 
1260 void StmtProfiler::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *S) {
1261   VisitExpr(S);
1262 }
1263 
1264 void StmtProfiler::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *S) {
1265   VisitExpr(S);
1266 }
1267 
1268 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
1269   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
1270 }
1271 
1272 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
1273   VisitExpr(S);
1274 }
1275 
1276 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
1277   VisitExpr(S);
1278   VisitName(&S->getAccessor());
1279 }
1280 
1281 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
1282   VisitExpr(S);
1283   VisitDecl(S->getBlockDecl());
1284 }
1285 
1286 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
1287   VisitExpr(S);
1288   for (const GenericSelectionExpr::ConstAssociation &Assoc :
1289        S->associations()) {
1290     QualType T = Assoc.getType();
1291     if (T.isNull())
1292       ID.AddPointer(nullptr);
1293     else
1294       VisitType(T);
1295     VisitExpr(Assoc.getAssociationExpr());
1296   }
1297 }
1298 
1299 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
1300   VisitExpr(S);
1301   for (PseudoObjectExpr::const_semantics_iterator
1302          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
1303     // Normally, we would not profile the source expressions of OVEs.
1304     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
1305       Visit(OVE->getSourceExpr());
1306 }
1307 
1308 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
1309   VisitExpr(S);
1310   ID.AddInteger(S->getOp());
1311 }
1312 
1313 void StmtProfiler::VisitConceptSpecializationExpr(
1314                                            const ConceptSpecializationExpr *S) {
1315   VisitExpr(S);
1316   VisitDecl(S->getFoundDecl());
1317   VisitTemplateArguments(S->getTemplateArgsAsWritten()->getTemplateArgs(),
1318                          S->getTemplateArgsAsWritten()->NumTemplateArgs);
1319 }
1320 
1321 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
1322                                           UnaryOperatorKind &UnaryOp,
1323                                           BinaryOperatorKind &BinaryOp) {
1324   switch (S->getOperator()) {
1325   case OO_None:
1326   case OO_New:
1327   case OO_Delete:
1328   case OO_Array_New:
1329   case OO_Array_Delete:
1330   case OO_Arrow:
1331   case OO_Call:
1332   case OO_Conditional:
1333   case NUM_OVERLOADED_OPERATORS:
1334     llvm_unreachable("Invalid operator call kind");
1335 
1336   case OO_Plus:
1337     if (S->getNumArgs() == 1) {
1338       UnaryOp = UO_Plus;
1339       return Stmt::UnaryOperatorClass;
1340     }
1341 
1342     BinaryOp = BO_Add;
1343     return Stmt::BinaryOperatorClass;
1344 
1345   case OO_Minus:
1346     if (S->getNumArgs() == 1) {
1347       UnaryOp = UO_Minus;
1348       return Stmt::UnaryOperatorClass;
1349     }
1350 
1351     BinaryOp = BO_Sub;
1352     return Stmt::BinaryOperatorClass;
1353 
1354   case OO_Star:
1355     if (S->getNumArgs() == 1) {
1356       UnaryOp = UO_Deref;
1357       return Stmt::UnaryOperatorClass;
1358     }
1359 
1360     BinaryOp = BO_Mul;
1361     return Stmt::BinaryOperatorClass;
1362 
1363   case OO_Slash:
1364     BinaryOp = BO_Div;
1365     return Stmt::BinaryOperatorClass;
1366 
1367   case OO_Percent:
1368     BinaryOp = BO_Rem;
1369     return Stmt::BinaryOperatorClass;
1370 
1371   case OO_Caret:
1372     BinaryOp = BO_Xor;
1373     return Stmt::BinaryOperatorClass;
1374 
1375   case OO_Amp:
1376     if (S->getNumArgs() == 1) {
1377       UnaryOp = UO_AddrOf;
1378       return Stmt::UnaryOperatorClass;
1379     }
1380 
1381     BinaryOp = BO_And;
1382     return Stmt::BinaryOperatorClass;
1383 
1384   case OO_Pipe:
1385     BinaryOp = BO_Or;
1386     return Stmt::BinaryOperatorClass;
1387 
1388   case OO_Tilde:
1389     UnaryOp = UO_Not;
1390     return Stmt::UnaryOperatorClass;
1391 
1392   case OO_Exclaim:
1393     UnaryOp = UO_LNot;
1394     return Stmt::UnaryOperatorClass;
1395 
1396   case OO_Equal:
1397     BinaryOp = BO_Assign;
1398     return Stmt::BinaryOperatorClass;
1399 
1400   case OO_Less:
1401     BinaryOp = BO_LT;
1402     return Stmt::BinaryOperatorClass;
1403 
1404   case OO_Greater:
1405     BinaryOp = BO_GT;
1406     return Stmt::BinaryOperatorClass;
1407 
1408   case OO_PlusEqual:
1409     BinaryOp = BO_AddAssign;
1410     return Stmt::CompoundAssignOperatorClass;
1411 
1412   case OO_MinusEqual:
1413     BinaryOp = BO_SubAssign;
1414     return Stmt::CompoundAssignOperatorClass;
1415 
1416   case OO_StarEqual:
1417     BinaryOp = BO_MulAssign;
1418     return Stmt::CompoundAssignOperatorClass;
1419 
1420   case OO_SlashEqual:
1421     BinaryOp = BO_DivAssign;
1422     return Stmt::CompoundAssignOperatorClass;
1423 
1424   case OO_PercentEqual:
1425     BinaryOp = BO_RemAssign;
1426     return Stmt::CompoundAssignOperatorClass;
1427 
1428   case OO_CaretEqual:
1429     BinaryOp = BO_XorAssign;
1430     return Stmt::CompoundAssignOperatorClass;
1431 
1432   case OO_AmpEqual:
1433     BinaryOp = BO_AndAssign;
1434     return Stmt::CompoundAssignOperatorClass;
1435 
1436   case OO_PipeEqual:
1437     BinaryOp = BO_OrAssign;
1438     return Stmt::CompoundAssignOperatorClass;
1439 
1440   case OO_LessLess:
1441     BinaryOp = BO_Shl;
1442     return Stmt::BinaryOperatorClass;
1443 
1444   case OO_GreaterGreater:
1445     BinaryOp = BO_Shr;
1446     return Stmt::BinaryOperatorClass;
1447 
1448   case OO_LessLessEqual:
1449     BinaryOp = BO_ShlAssign;
1450     return Stmt::CompoundAssignOperatorClass;
1451 
1452   case OO_GreaterGreaterEqual:
1453     BinaryOp = BO_ShrAssign;
1454     return Stmt::CompoundAssignOperatorClass;
1455 
1456   case OO_EqualEqual:
1457     BinaryOp = BO_EQ;
1458     return Stmt::BinaryOperatorClass;
1459 
1460   case OO_ExclaimEqual:
1461     BinaryOp = BO_NE;
1462     return Stmt::BinaryOperatorClass;
1463 
1464   case OO_LessEqual:
1465     BinaryOp = BO_LE;
1466     return Stmt::BinaryOperatorClass;
1467 
1468   case OO_GreaterEqual:
1469     BinaryOp = BO_GE;
1470     return Stmt::BinaryOperatorClass;
1471 
1472   case OO_Spaceship:
1473     // FIXME: Update this once we support <=> expressions.
1474     llvm_unreachable("<=> expressions not supported yet");
1475 
1476   case OO_AmpAmp:
1477     BinaryOp = BO_LAnd;
1478     return Stmt::BinaryOperatorClass;
1479 
1480   case OO_PipePipe:
1481     BinaryOp = BO_LOr;
1482     return Stmt::BinaryOperatorClass;
1483 
1484   case OO_PlusPlus:
1485     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1486                                   : UO_PostInc;
1487     return Stmt::UnaryOperatorClass;
1488 
1489   case OO_MinusMinus:
1490     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1491                                   : UO_PostDec;
1492     return Stmt::UnaryOperatorClass;
1493 
1494   case OO_Comma:
1495     BinaryOp = BO_Comma;
1496     return Stmt::BinaryOperatorClass;
1497 
1498   case OO_ArrowStar:
1499     BinaryOp = BO_PtrMemI;
1500     return Stmt::BinaryOperatorClass;
1501 
1502   case OO_Subscript:
1503     return Stmt::ArraySubscriptExprClass;
1504 
1505   case OO_Coawait:
1506     UnaryOp = UO_Coawait;
1507     return Stmt::UnaryOperatorClass;
1508   }
1509 
1510   llvm_unreachable("Invalid overloaded operator expression");
1511 }
1512 
1513 #if defined(_MSC_VER) && !defined(__clang__)
1514 #if _MSC_VER == 1911
1515 // Work around https://developercommunity.visualstudio.com/content/problem/84002/clang-cl-when-built-with-vc-2017-crashes-cause-vc.html
1516 // MSVC 2017 update 3 miscompiles this function, and a clang built with it
1517 // will crash in stage 2 of a bootstrap build.
1518 #pragma optimize("", off)
1519 #endif
1520 #endif
1521 
1522 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1523   if (S->isTypeDependent()) {
1524     // Type-dependent operator calls are profiled like their underlying
1525     // syntactic operator.
1526     //
1527     // An operator call to operator-> is always implicit, so just skip it. The
1528     // enclosing MemberExpr will profile the actual member access.
1529     if (S->getOperator() == OO_Arrow)
1530       return Visit(S->getArg(0));
1531 
1532     UnaryOperatorKind UnaryOp = UO_Extension;
1533     BinaryOperatorKind BinaryOp = BO_Comma;
1534     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1535 
1536     ID.AddInteger(SC);
1537     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1538       Visit(S->getArg(I));
1539     if (SC == Stmt::UnaryOperatorClass)
1540       ID.AddInteger(UnaryOp);
1541     else if (SC == Stmt::BinaryOperatorClass ||
1542              SC == Stmt::CompoundAssignOperatorClass)
1543       ID.AddInteger(BinaryOp);
1544     else
1545       assert(SC == Stmt::ArraySubscriptExprClass);
1546 
1547     return;
1548   }
1549 
1550   VisitCallExpr(S);
1551   ID.AddInteger(S->getOperator());
1552 }
1553 
1554 #if defined(_MSC_VER) && !defined(__clang__)
1555 #if _MSC_VER == 1911
1556 #pragma optimize("", on)
1557 #endif
1558 #endif
1559 
1560 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1561   VisitCallExpr(S);
1562 }
1563 
1564 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1565   VisitCallExpr(S);
1566 }
1567 
1568 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1569   VisitExpr(S);
1570 }
1571 
1572 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1573   VisitExplicitCastExpr(S);
1574 }
1575 
1576 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1577   VisitCXXNamedCastExpr(S);
1578 }
1579 
1580 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1581   VisitCXXNamedCastExpr(S);
1582 }
1583 
1584 void
1585 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1586   VisitCXXNamedCastExpr(S);
1587 }
1588 
1589 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1590   VisitCXXNamedCastExpr(S);
1591 }
1592 
1593 void StmtProfiler::VisitBuiltinBitCastExpr(const BuiltinBitCastExpr *S) {
1594   VisitExpr(S);
1595   VisitType(S->getTypeInfoAsWritten()->getType());
1596 }
1597 
1598 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1599   VisitCallExpr(S);
1600 }
1601 
1602 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1603   VisitExpr(S);
1604   ID.AddBoolean(S->getValue());
1605 }
1606 
1607 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1608   VisitExpr(S);
1609 }
1610 
1611 void StmtProfiler::VisitCXXStdInitializerListExpr(
1612     const CXXStdInitializerListExpr *S) {
1613   VisitExpr(S);
1614 }
1615 
1616 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1617   VisitExpr(S);
1618   if (S->isTypeOperand())
1619     VisitType(S->getTypeOperandSourceInfo()->getType());
1620 }
1621 
1622 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1623   VisitExpr(S);
1624   if (S->isTypeOperand())
1625     VisitType(S->getTypeOperandSourceInfo()->getType());
1626 }
1627 
1628 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1629   VisitExpr(S);
1630   VisitDecl(S->getPropertyDecl());
1631 }
1632 
1633 void StmtProfiler::VisitMSPropertySubscriptExpr(
1634     const MSPropertySubscriptExpr *S) {
1635   VisitExpr(S);
1636 }
1637 
1638 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1639   VisitExpr(S);
1640   ID.AddBoolean(S->isImplicit());
1641 }
1642 
1643 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1644   VisitExpr(S);
1645 }
1646 
1647 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1648   VisitExpr(S);
1649   VisitDecl(S->getParam());
1650 }
1651 
1652 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1653   VisitExpr(S);
1654   VisitDecl(S->getField());
1655 }
1656 
1657 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1658   VisitExpr(S);
1659   VisitDecl(
1660          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1661 }
1662 
1663 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1664   VisitExpr(S);
1665   VisitDecl(S->getConstructor());
1666   ID.AddBoolean(S->isElidable());
1667 }
1668 
1669 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
1670     const CXXInheritedCtorInitExpr *S) {
1671   VisitExpr(S);
1672   VisitDecl(S->getConstructor());
1673 }
1674 
1675 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1676   VisitExplicitCastExpr(S);
1677 }
1678 
1679 void
1680 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1681   VisitCXXConstructExpr(S);
1682 }
1683 
1684 void
1685 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1686   VisitExpr(S);
1687   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1688                                  CEnd = S->explicit_capture_end();
1689        C != CEnd; ++C) {
1690     if (C->capturesVLAType())
1691       continue;
1692 
1693     ID.AddInteger(C->getCaptureKind());
1694     switch (C->getCaptureKind()) {
1695     case LCK_StarThis:
1696     case LCK_This:
1697       break;
1698     case LCK_ByRef:
1699     case LCK_ByCopy:
1700       VisitDecl(C->getCapturedVar());
1701       ID.AddBoolean(C->isPackExpansion());
1702       break;
1703     case LCK_VLAType:
1704       llvm_unreachable("VLA type in explicit captures.");
1705     }
1706   }
1707   // Note: If we actually needed to be able to match lambda
1708   // expressions, we would have to consider parameters and return type
1709   // here, among other things.
1710   VisitStmt(S->getBody());
1711 }
1712 
1713 void
1714 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1715   VisitExpr(S);
1716 }
1717 
1718 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1719   VisitExpr(S);
1720   ID.AddBoolean(S->isGlobalDelete());
1721   ID.AddBoolean(S->isArrayForm());
1722   VisitDecl(S->getOperatorDelete());
1723 }
1724 
1725 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1726   VisitExpr(S);
1727   VisitType(S->getAllocatedType());
1728   VisitDecl(S->getOperatorNew());
1729   VisitDecl(S->getOperatorDelete());
1730   ID.AddBoolean(S->isArray());
1731   ID.AddInteger(S->getNumPlacementArgs());
1732   ID.AddBoolean(S->isGlobalNew());
1733   ID.AddBoolean(S->isParenTypeId());
1734   ID.AddInteger(S->getInitializationStyle());
1735 }
1736 
1737 void
1738 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1739   VisitExpr(S);
1740   ID.AddBoolean(S->isArrow());
1741   VisitNestedNameSpecifier(S->getQualifier());
1742   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1743   if (S->getScopeTypeInfo())
1744     VisitType(S->getScopeTypeInfo()->getType());
1745   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1746   if (S->getDestroyedTypeInfo())
1747     VisitType(S->getDestroyedType());
1748   else
1749     VisitIdentifierInfo(S->getDestroyedTypeIdentifier());
1750 }
1751 
1752 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1753   VisitExpr(S);
1754   VisitNestedNameSpecifier(S->getQualifier());
1755   VisitName(S->getName(), /*TreatAsDecl*/ true);
1756   ID.AddBoolean(S->hasExplicitTemplateArgs());
1757   if (S->hasExplicitTemplateArgs())
1758     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1759 }
1760 
1761 void
1762 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1763   VisitOverloadExpr(S);
1764 }
1765 
1766 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1767   VisitExpr(S);
1768   ID.AddInteger(S->getTrait());
1769   ID.AddInteger(S->getNumArgs());
1770   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1771     VisitType(S->getArg(I)->getType());
1772 }
1773 
1774 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1775   VisitExpr(S);
1776   ID.AddInteger(S->getTrait());
1777   VisitType(S->getQueriedType());
1778 }
1779 
1780 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1781   VisitExpr(S);
1782   ID.AddInteger(S->getTrait());
1783   VisitExpr(S->getQueriedExpression());
1784 }
1785 
1786 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1787     const DependentScopeDeclRefExpr *S) {
1788   VisitExpr(S);
1789   VisitName(S->getDeclName());
1790   VisitNestedNameSpecifier(S->getQualifier());
1791   ID.AddBoolean(S->hasExplicitTemplateArgs());
1792   if (S->hasExplicitTemplateArgs())
1793     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1794 }
1795 
1796 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1797   VisitExpr(S);
1798 }
1799 
1800 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1801     const CXXUnresolvedConstructExpr *S) {
1802   VisitExpr(S);
1803   VisitType(S->getTypeAsWritten());
1804   ID.AddInteger(S->isListInitialization());
1805 }
1806 
1807 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1808     const CXXDependentScopeMemberExpr *S) {
1809   ID.AddBoolean(S->isImplicitAccess());
1810   if (!S->isImplicitAccess()) {
1811     VisitExpr(S);
1812     ID.AddBoolean(S->isArrow());
1813   }
1814   VisitNestedNameSpecifier(S->getQualifier());
1815   VisitName(S->getMember());
1816   ID.AddBoolean(S->hasExplicitTemplateArgs());
1817   if (S->hasExplicitTemplateArgs())
1818     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1819 }
1820 
1821 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1822   ID.AddBoolean(S->isImplicitAccess());
1823   if (!S->isImplicitAccess()) {
1824     VisitExpr(S);
1825     ID.AddBoolean(S->isArrow());
1826   }
1827   VisitNestedNameSpecifier(S->getQualifier());
1828   VisitName(S->getMemberName());
1829   ID.AddBoolean(S->hasExplicitTemplateArgs());
1830   if (S->hasExplicitTemplateArgs())
1831     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1832 }
1833 
1834 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1835   VisitExpr(S);
1836 }
1837 
1838 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1839   VisitExpr(S);
1840 }
1841 
1842 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1843   VisitExpr(S);
1844   VisitDecl(S->getPack());
1845   if (S->isPartiallySubstituted()) {
1846     auto Args = S->getPartialArguments();
1847     ID.AddInteger(Args.size());
1848     for (const auto &TA : Args)
1849       VisitTemplateArgument(TA);
1850   } else {
1851     ID.AddInteger(0);
1852   }
1853 }
1854 
1855 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1856     const SubstNonTypeTemplateParmPackExpr *S) {
1857   VisitExpr(S);
1858   VisitDecl(S->getParameterPack());
1859   VisitTemplateArgument(S->getArgumentPack());
1860 }
1861 
1862 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
1863     const SubstNonTypeTemplateParmExpr *E) {
1864   // Profile exactly as the replacement expression.
1865   Visit(E->getReplacement());
1866 }
1867 
1868 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
1869   VisitExpr(S);
1870   VisitDecl(S->getParameterPack());
1871   ID.AddInteger(S->getNumExpansions());
1872   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
1873     VisitDecl(*I);
1874 }
1875 
1876 void StmtProfiler::VisitMaterializeTemporaryExpr(
1877                                            const MaterializeTemporaryExpr *S) {
1878   VisitExpr(S);
1879 }
1880 
1881 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
1882   VisitExpr(S);
1883   ID.AddInteger(S->getOperator());
1884 }
1885 
1886 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
1887   VisitStmt(S);
1888 }
1889 
1890 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
1891   VisitStmt(S);
1892 }
1893 
1894 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
1895   VisitExpr(S);
1896 }
1897 
1898 void StmtProfiler::VisitDependentCoawaitExpr(const DependentCoawaitExpr *S) {
1899   VisitExpr(S);
1900 }
1901 
1902 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
1903   VisitExpr(S);
1904 }
1905 
1906 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
1907   VisitExpr(E);
1908 }
1909 
1910 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
1911   VisitExpr(E);
1912 }
1913 
1914 void StmtProfiler::VisitSourceLocExpr(const SourceLocExpr *E) {
1915   VisitExpr(E);
1916 }
1917 
1918 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
1919   VisitExpr(S);
1920 }
1921 
1922 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
1923   VisitExpr(E);
1924 }
1925 
1926 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
1927   VisitExpr(E);
1928 }
1929 
1930 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
1931   VisitExpr(E);
1932 }
1933 
1934 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
1935   VisitExpr(S);
1936   VisitType(S->getEncodedType());
1937 }
1938 
1939 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
1940   VisitExpr(S);
1941   VisitName(S->getSelector());
1942 }
1943 
1944 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
1945   VisitExpr(S);
1946   VisitDecl(S->getProtocol());
1947 }
1948 
1949 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
1950   VisitExpr(S);
1951   VisitDecl(S->getDecl());
1952   ID.AddBoolean(S->isArrow());
1953   ID.AddBoolean(S->isFreeIvar());
1954 }
1955 
1956 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
1957   VisitExpr(S);
1958   if (S->isImplicitProperty()) {
1959     VisitDecl(S->getImplicitPropertyGetter());
1960     VisitDecl(S->getImplicitPropertySetter());
1961   } else {
1962     VisitDecl(S->getExplicitProperty());
1963   }
1964   if (S->isSuperReceiver()) {
1965     ID.AddBoolean(S->isSuperReceiver());
1966     VisitType(S->getSuperReceiverType());
1967   }
1968 }
1969 
1970 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
1971   VisitExpr(S);
1972   VisitDecl(S->getAtIndexMethodDecl());
1973   VisitDecl(S->setAtIndexMethodDecl());
1974 }
1975 
1976 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
1977   VisitExpr(S);
1978   VisitName(S->getSelector());
1979   VisitDecl(S->getMethodDecl());
1980 }
1981 
1982 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
1983   VisitExpr(S);
1984   ID.AddBoolean(S->isArrow());
1985 }
1986 
1987 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
1988   VisitExpr(S);
1989   ID.AddBoolean(S->getValue());
1990 }
1991 
1992 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
1993     const ObjCIndirectCopyRestoreExpr *S) {
1994   VisitExpr(S);
1995   ID.AddBoolean(S->shouldCopy());
1996 }
1997 
1998 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
1999   VisitExplicitCastExpr(S);
2000   ID.AddBoolean(S->getBridgeKind());
2001 }
2002 
2003 void StmtProfiler::VisitObjCAvailabilityCheckExpr(
2004     const ObjCAvailabilityCheckExpr *S) {
2005   VisitExpr(S);
2006 }
2007 
2008 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
2009                                           unsigned NumArgs) {
2010   ID.AddInteger(NumArgs);
2011   for (unsigned I = 0; I != NumArgs; ++I)
2012     VisitTemplateArgument(Args[I].getArgument());
2013 }
2014 
2015 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
2016   // Mostly repetitive with TemplateArgument::Profile!
2017   ID.AddInteger(Arg.getKind());
2018   switch (Arg.getKind()) {
2019   case TemplateArgument::Null:
2020     break;
2021 
2022   case TemplateArgument::Type:
2023     VisitType(Arg.getAsType());
2024     break;
2025 
2026   case TemplateArgument::Template:
2027   case TemplateArgument::TemplateExpansion:
2028     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
2029     break;
2030 
2031   case TemplateArgument::Declaration:
2032     VisitDecl(Arg.getAsDecl());
2033     break;
2034 
2035   case TemplateArgument::NullPtr:
2036     VisitType(Arg.getNullPtrType());
2037     break;
2038 
2039   case TemplateArgument::Integral:
2040     Arg.getAsIntegral().Profile(ID);
2041     VisitType(Arg.getIntegralType());
2042     break;
2043 
2044   case TemplateArgument::Expression:
2045     Visit(Arg.getAsExpr());
2046     break;
2047 
2048   case TemplateArgument::Pack:
2049     for (const auto &P : Arg.pack_elements())
2050       VisitTemplateArgument(P);
2051     break;
2052   }
2053 }
2054 
2055 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
2056                    bool Canonical) const {
2057   StmtProfilerWithPointers Profiler(ID, Context, Canonical);
2058   Profiler.Visit(this);
2059 }
2060 
2061 void Stmt::ProcessODRHash(llvm::FoldingSetNodeID &ID,
2062                           class ODRHash &Hash) const {
2063   StmtProfilerWithoutPointers Profiler(ID, Hash);
2064   Profiler.Visit(this);
2065 }
2066