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