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