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/OpenMPClause.h"
23 #include "clang/AST/StmtVisitor.h"
24 #include "llvm/ADT/FoldingSet.h"
25 using namespace clang;
26 
27 namespace {
28   class StmtProfiler : public ConstStmtVisitor<StmtProfiler> {
29   protected:
30     llvm::FoldingSetNodeID &ID;
31     bool Canonical;
32 
33   public:
34     StmtProfiler(llvm::FoldingSetNodeID &ID, bool Canonical)
35         : ID(ID), Canonical(Canonical) {}
36 
37     virtual ~StmtProfiler() {}
38 
39     void VisitStmt(const Stmt *S);
40 
41     virtual void HandleStmtClass(Stmt::StmtClass SC) = 0;
42 
43 #define STMT(Node, Base) void Visit##Node(const Node *S);
44 #include "clang/AST/StmtNodes.inc"
45 
46     /// Visit a declaration that is referenced within an expression
47     /// or statement.
48     virtual void VisitDecl(const Decl *D) = 0;
49 
50     /// Visit a type that is referenced within an expression or
51     /// statement.
52     virtual void VisitType(QualType T) = 0;
53 
54     /// Visit a name that occurs within an expression or statement.
55     virtual void VisitName(DeclarationName Name, bool TreatAsDecl = false) = 0;
56 
57     /// Visit identifiers that are not in Decl's or Type's.
58     virtual void VisitIdentifierInfo(IdentifierInfo *II) = 0;
59 
60     /// Visit a nested-name-specifier that occurs within an expression
61     /// or statement.
62     virtual void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) = 0;
63 
64     /// Visit a template name that occurs within an expression or
65     /// statement.
66     virtual void VisitTemplateName(TemplateName Name) = 0;
67 
68     /// Visit template arguments that occur within an expression or
69     /// statement.
70     void VisitTemplateArguments(const TemplateArgumentLoc *Args,
71                                 unsigned NumArgs);
72 
73     /// Visit a single template argument.
74     void VisitTemplateArgument(const TemplateArgument &Arg);
75   };
76 
77   class StmtProfilerWithPointers : public StmtProfiler {
78     const ASTContext &Context;
79 
80   public:
81     StmtProfilerWithPointers(llvm::FoldingSetNodeID &ID,
82                              const ASTContext &Context, bool Canonical)
83         : StmtProfiler(ID, Canonical), Context(Context) {}
84   private:
85     void HandleStmtClass(Stmt::StmtClass SC) override {
86       ID.AddInteger(SC);
87     }
88 
89     void VisitDecl(const Decl *D) override {
90       ID.AddInteger(D ? D->getKind() : 0);
91 
92       if (Canonical && D) {
93         if (const NonTypeTemplateParmDecl *NTTP =
94                 dyn_cast<NonTypeTemplateParmDecl>(D)) {
95           ID.AddInteger(NTTP->getDepth());
96           ID.AddInteger(NTTP->getIndex());
97           ID.AddBoolean(NTTP->isParameterPack());
98           VisitType(NTTP->getType());
99           return;
100         }
101 
102         if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
103           // The Itanium C++ ABI uses the type, scope depth, and scope
104           // index of a parameter when mangling expressions that involve
105           // function parameters, so we will use the parameter's type for
106           // establishing function parameter identity. That way, our
107           // definition of "equivalent" (per C++ [temp.over.link]) is at
108           // least as strong as the definition of "equivalent" used for
109           // name mangling.
110           VisitType(Parm->getType());
111           ID.AddInteger(Parm->getFunctionScopeDepth());
112           ID.AddInteger(Parm->getFunctionScopeIndex());
113           return;
114         }
115 
116         if (const TemplateTypeParmDecl *TTP =
117                 dyn_cast<TemplateTypeParmDecl>(D)) {
118           ID.AddInteger(TTP->getDepth());
119           ID.AddInteger(TTP->getIndex());
120           ID.AddBoolean(TTP->isParameterPack());
121           return;
122         }
123 
124         if (const TemplateTemplateParmDecl *TTP =
125                 dyn_cast<TemplateTemplateParmDecl>(D)) {
126           ID.AddInteger(TTP->getDepth());
127           ID.AddInteger(TTP->getIndex());
128           ID.AddBoolean(TTP->isParameterPack());
129           return;
130         }
131       }
132 
133       ID.AddPointer(D ? D->getCanonicalDecl() : nullptr);
134     }
135 
136     void VisitType(QualType T) override {
137       if (Canonical && !T.isNull())
138         T = Context.getCanonicalType(T);
139 
140       ID.AddPointer(T.getAsOpaquePtr());
141     }
142 
143     void VisitName(DeclarationName Name, bool /*TreatAsDecl*/) override {
144       ID.AddPointer(Name.getAsOpaquePtr());
145     }
146 
147     void VisitIdentifierInfo(IdentifierInfo *II) override {
148       ID.AddPointer(II);
149     }
150 
151     void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) override {
152       if (Canonical)
153         NNS = Context.getCanonicalNestedNameSpecifier(NNS);
154       ID.AddPointer(NNS);
155     }
156 
157     void VisitTemplateName(TemplateName Name) override {
158       if (Canonical)
159         Name = Context.getCanonicalTemplateName(Name);
160 
161       Name.Profile(ID);
162     }
163   };
164 
165   class StmtProfilerWithoutPointers : public StmtProfiler {
166     ODRHash &Hash;
167   public:
168     StmtProfilerWithoutPointers(llvm::FoldingSetNodeID &ID, ODRHash &Hash)
169         : StmtProfiler(ID, false), Hash(Hash) {}
170 
171   private:
172     void HandleStmtClass(Stmt::StmtClass SC) override {
173       if (SC == Stmt::UnresolvedLookupExprClass) {
174         // Pretend that the name looked up is a Decl due to how templates
175         // handle some Decl lookups.
176         ID.AddInteger(Stmt::DeclRefExprClass);
177       } else {
178         ID.AddInteger(SC);
179       }
180     }
181 
182     void VisitType(QualType T) override {
183       Hash.AddQualType(T);
184     }
185 
186     void VisitName(DeclarationName Name, bool TreatAsDecl) override {
187       if (TreatAsDecl) {
188         // A Decl can be null, so each Decl is preceded by a boolean to
189         // store its nullness.  Add a boolean here to match.
190         ID.AddBoolean(true);
191       }
192       Hash.AddDeclarationName(Name, TreatAsDecl);
193     }
194     void VisitIdentifierInfo(IdentifierInfo *II) override {
195       ID.AddBoolean(II);
196       if (II) {
197         Hash.AddIdentifierInfo(II);
198       }
199     }
200     void VisitDecl(const Decl *D) override {
201       ID.AddBoolean(D);
202       if (D) {
203         Hash.AddDecl(D);
204       }
205     }
206     void VisitTemplateName(TemplateName Name) override {
207       Hash.AddTemplateName(Name);
208     }
209     void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) override {
210       ID.AddBoolean(NNS);
211       if (NNS) {
212         Hash.AddNestedNameSpecifier(NNS);
213       }
214     }
215   };
216 }
217 
218 void StmtProfiler::VisitStmt(const Stmt *S) {
219   assert(S && "Requires non-null Stmt pointer");
220 
221   HandleStmtClass(S->getStmtClass());
222 
223   for (const Stmt *SubStmt : S->children()) {
224     if (SubStmt)
225       Visit(SubStmt);
226     else
227       ID.AddInteger(0);
228   }
229 }
230 
231 void StmtProfiler::VisitDeclStmt(const DeclStmt *S) {
232   VisitStmt(S);
233   for (const auto *D : S->decls())
234     VisitDecl(D);
235 }
236 
237 void StmtProfiler::VisitNullStmt(const NullStmt *S) {
238   VisitStmt(S);
239 }
240 
241 void StmtProfiler::VisitCompoundStmt(const CompoundStmt *S) {
242   VisitStmt(S);
243 }
244 
245 void StmtProfiler::VisitCaseStmt(const CaseStmt *S) {
246   VisitStmt(S);
247 }
248 
249 void StmtProfiler::VisitDefaultStmt(const DefaultStmt *S) {
250   VisitStmt(S);
251 }
252 
253 void StmtProfiler::VisitLabelStmt(const LabelStmt *S) {
254   VisitStmt(S);
255   VisitDecl(S->getDecl());
256 }
257 
258 void StmtProfiler::VisitAttributedStmt(const AttributedStmt *S) {
259   VisitStmt(S);
260   // TODO: maybe visit attributes?
261 }
262 
263 void StmtProfiler::VisitIfStmt(const IfStmt *S) {
264   VisitStmt(S);
265   VisitDecl(S->getConditionVariable());
266 }
267 
268 void StmtProfiler::VisitSwitchStmt(const SwitchStmt *S) {
269   VisitStmt(S);
270   VisitDecl(S->getConditionVariable());
271 }
272 
273 void StmtProfiler::VisitWhileStmt(const WhileStmt *S) {
274   VisitStmt(S);
275   VisitDecl(S->getConditionVariable());
276 }
277 
278 void StmtProfiler::VisitDoStmt(const DoStmt *S) {
279   VisitStmt(S);
280 }
281 
282 void StmtProfiler::VisitForStmt(const ForStmt *S) {
283   VisitStmt(S);
284 }
285 
286 void StmtProfiler::VisitGotoStmt(const GotoStmt *S) {
287   VisitStmt(S);
288   VisitDecl(S->getLabel());
289 }
290 
291 void StmtProfiler::VisitIndirectGotoStmt(const IndirectGotoStmt *S) {
292   VisitStmt(S);
293 }
294 
295 void StmtProfiler::VisitContinueStmt(const ContinueStmt *S) {
296   VisitStmt(S);
297 }
298 
299 void StmtProfiler::VisitBreakStmt(const BreakStmt *S) {
300   VisitStmt(S);
301 }
302 
303 void StmtProfiler::VisitReturnStmt(const ReturnStmt *S) {
304   VisitStmt(S);
305 }
306 
307 void StmtProfiler::VisitGCCAsmStmt(const GCCAsmStmt *S) {
308   VisitStmt(S);
309   ID.AddBoolean(S->isVolatile());
310   ID.AddBoolean(S->isSimple());
311   VisitStringLiteral(S->getAsmString());
312   ID.AddInteger(S->getNumOutputs());
313   for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
314     ID.AddString(S->getOutputName(I));
315     VisitStringLiteral(S->getOutputConstraintLiteral(I));
316   }
317   ID.AddInteger(S->getNumInputs());
318   for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
319     ID.AddString(S->getInputName(I));
320     VisitStringLiteral(S->getInputConstraintLiteral(I));
321   }
322   ID.AddInteger(S->getNumClobbers());
323   for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
324     VisitStringLiteral(S->getClobberStringLiteral(I));
325   ID.AddInteger(S->getNumLabels());
326   for (auto *L : S->labels())
327     VisitDecl(L->getLabel());
328 }
329 
330 void StmtProfiler::VisitMSAsmStmt(const MSAsmStmt *S) {
331   // FIXME: Implement MS style inline asm statement profiler.
332   VisitStmt(S);
333 }
334 
335 void StmtProfiler::VisitCXXCatchStmt(const CXXCatchStmt *S) {
336   VisitStmt(S);
337   VisitType(S->getCaughtType());
338 }
339 
340 void StmtProfiler::VisitCXXTryStmt(const CXXTryStmt *S) {
341   VisitStmt(S);
342 }
343 
344 void StmtProfiler::VisitCXXForRangeStmt(const CXXForRangeStmt *S) {
345   VisitStmt(S);
346 }
347 
348 void StmtProfiler::VisitMSDependentExistsStmt(const MSDependentExistsStmt *S) {
349   VisitStmt(S);
350   ID.AddBoolean(S->isIfExists());
351   VisitNestedNameSpecifier(S->getQualifierLoc().getNestedNameSpecifier());
352   VisitName(S->getNameInfo().getName());
353 }
354 
355 void StmtProfiler::VisitSEHTryStmt(const SEHTryStmt *S) {
356   VisitStmt(S);
357 }
358 
359 void StmtProfiler::VisitSEHFinallyStmt(const SEHFinallyStmt *S) {
360   VisitStmt(S);
361 }
362 
363 void StmtProfiler::VisitSEHExceptStmt(const SEHExceptStmt *S) {
364   VisitStmt(S);
365 }
366 
367 void StmtProfiler::VisitSEHLeaveStmt(const SEHLeaveStmt *S) {
368   VisitStmt(S);
369 }
370 
371 void StmtProfiler::VisitCapturedStmt(const CapturedStmt *S) {
372   VisitStmt(S);
373 }
374 
375 void StmtProfiler::VisitObjCForCollectionStmt(const ObjCForCollectionStmt *S) {
376   VisitStmt(S);
377 }
378 
379 void StmtProfiler::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *S) {
380   VisitStmt(S);
381   ID.AddBoolean(S->hasEllipsis());
382   if (S->getCatchParamDecl())
383     VisitType(S->getCatchParamDecl()->getType());
384 }
385 
386 void StmtProfiler::VisitObjCAtFinallyStmt(const ObjCAtFinallyStmt *S) {
387   VisitStmt(S);
388 }
389 
390 void StmtProfiler::VisitObjCAtTryStmt(const ObjCAtTryStmt *S) {
391   VisitStmt(S);
392 }
393 
394 void
395 StmtProfiler::VisitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt *S) {
396   VisitStmt(S);
397 }
398 
399 void StmtProfiler::VisitObjCAtThrowStmt(const ObjCAtThrowStmt *S) {
400   VisitStmt(S);
401 }
402 
403 void
404 StmtProfiler::VisitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt *S) {
405   VisitStmt(S);
406 }
407 
408 namespace {
409 class OMPClauseProfiler : public ConstOMPClauseVisitor<OMPClauseProfiler> {
410   StmtProfiler *Profiler;
411   /// Process clauses with list of variables.
412   template <typename T>
413   void VisitOMPClauseList(T *Node);
414 
415 public:
416   OMPClauseProfiler(StmtProfiler *P) : Profiler(P) { }
417 #define OMP_CLAUSE_CLASS(Enum, Str, Class) void Visit##Class(const Class *C);
418 #include "llvm/Frontend/OpenMP/OMPKinds.def"
419   void VistOMPClauseWithPreInit(const OMPClauseWithPreInit *C);
420   void VistOMPClauseWithPostUpdate(const OMPClauseWithPostUpdate *C);
421 };
422 
423 void OMPClauseProfiler::VistOMPClauseWithPreInit(
424     const OMPClauseWithPreInit *C) {
425   if (auto *S = C->getPreInitStmt())
426     Profiler->VisitStmt(S);
427 }
428 
429 void OMPClauseProfiler::VistOMPClauseWithPostUpdate(
430     const OMPClauseWithPostUpdate *C) {
431   VistOMPClauseWithPreInit(C);
432   if (auto *E = C->getPostUpdateExpr())
433     Profiler->VisitStmt(E);
434 }
435 
436 void OMPClauseProfiler::VisitOMPIfClause(const OMPIfClause *C) {
437   VistOMPClauseWithPreInit(C);
438   if (C->getCondition())
439     Profiler->VisitStmt(C->getCondition());
440 }
441 
442 void OMPClauseProfiler::VisitOMPFinalClause(const OMPFinalClause *C) {
443   VistOMPClauseWithPreInit(C);
444   if (C->getCondition())
445     Profiler->VisitStmt(C->getCondition());
446 }
447 
448 void OMPClauseProfiler::VisitOMPNumThreadsClause(const OMPNumThreadsClause *C) {
449   VistOMPClauseWithPreInit(C);
450   if (C->getNumThreads())
451     Profiler->VisitStmt(C->getNumThreads());
452 }
453 
454 void OMPClauseProfiler::VisitOMPSafelenClause(const OMPSafelenClause *C) {
455   if (C->getSafelen())
456     Profiler->VisitStmt(C->getSafelen());
457 }
458 
459 void OMPClauseProfiler::VisitOMPSimdlenClause(const OMPSimdlenClause *C) {
460   if (C->getSimdlen())
461     Profiler->VisitStmt(C->getSimdlen());
462 }
463 
464 void OMPClauseProfiler::VisitOMPAllocatorClause(const OMPAllocatorClause *C) {
465   if (C->getAllocator())
466     Profiler->VisitStmt(C->getAllocator());
467 }
468 
469 void OMPClauseProfiler::VisitOMPCollapseClause(const OMPCollapseClause *C) {
470   if (C->getNumForLoops())
471     Profiler->VisitStmt(C->getNumForLoops());
472 }
473 
474 void OMPClauseProfiler::VisitOMPDetachClause(const OMPDetachClause *C) {
475   if (Expr *Evt = C->getEventHandler())
476     Profiler->VisitStmt(Evt);
477 }
478 
479 void OMPClauseProfiler::VisitOMPDefaultClause(const OMPDefaultClause *C) { }
480 
481 void OMPClauseProfiler::VisitOMPProcBindClause(const OMPProcBindClause *C) { }
482 
483 void OMPClauseProfiler::VisitOMPUnifiedAddressClause(
484     const OMPUnifiedAddressClause *C) {}
485 
486 void OMPClauseProfiler::VisitOMPUnifiedSharedMemoryClause(
487     const OMPUnifiedSharedMemoryClause *C) {}
488 
489 void OMPClauseProfiler::VisitOMPReverseOffloadClause(
490     const OMPReverseOffloadClause *C) {}
491 
492 void OMPClauseProfiler::VisitOMPDynamicAllocatorsClause(
493     const OMPDynamicAllocatorsClause *C) {}
494 
495 void OMPClauseProfiler::VisitOMPAtomicDefaultMemOrderClause(
496     const OMPAtomicDefaultMemOrderClause *C) {}
497 
498 void OMPClauseProfiler::VisitOMPScheduleClause(const OMPScheduleClause *C) {
499   VistOMPClauseWithPreInit(C);
500   if (auto *S = C->getChunkSize())
501     Profiler->VisitStmt(S);
502 }
503 
504 void OMPClauseProfiler::VisitOMPOrderedClause(const OMPOrderedClause *C) {
505   if (auto *Num = C->getNumForLoops())
506     Profiler->VisitStmt(Num);
507 }
508 
509 void OMPClauseProfiler::VisitOMPNowaitClause(const OMPNowaitClause *) {}
510 
511 void OMPClauseProfiler::VisitOMPUntiedClause(const OMPUntiedClause *) {}
512 
513 void OMPClauseProfiler::VisitOMPMergeableClause(const OMPMergeableClause *) {}
514 
515 void OMPClauseProfiler::VisitOMPReadClause(const OMPReadClause *) {}
516 
517 void OMPClauseProfiler::VisitOMPWriteClause(const OMPWriteClause *) {}
518 
519 void OMPClauseProfiler::VisitOMPUpdateClause(const OMPUpdateClause *) {}
520 
521 void OMPClauseProfiler::VisitOMPCaptureClause(const OMPCaptureClause *) {}
522 
523 void OMPClauseProfiler::VisitOMPSeqCstClause(const OMPSeqCstClause *) {}
524 
525 void OMPClauseProfiler::VisitOMPAcqRelClause(const OMPAcqRelClause *) {}
526 
527 void OMPClauseProfiler::VisitOMPAcquireClause(const OMPAcquireClause *) {}
528 
529 void OMPClauseProfiler::VisitOMPReleaseClause(const OMPReleaseClause *) {}
530 
531 void OMPClauseProfiler::VisitOMPRelaxedClause(const OMPRelaxedClause *) {}
532 
533 void OMPClauseProfiler::VisitOMPThreadsClause(const OMPThreadsClause *) {}
534 
535 void OMPClauseProfiler::VisitOMPSIMDClause(const OMPSIMDClause *) {}
536 
537 void OMPClauseProfiler::VisitOMPNogroupClause(const OMPNogroupClause *) {}
538 
539 void OMPClauseProfiler::VisitOMPDestroyClause(const OMPDestroyClause *) {}
540 
541 template<typename T>
542 void OMPClauseProfiler::VisitOMPClauseList(T *Node) {
543   for (auto *E : Node->varlists()) {
544     if (E)
545       Profiler->VisitStmt(E);
546   }
547 }
548 
549 void OMPClauseProfiler::VisitOMPPrivateClause(const OMPPrivateClause *C) {
550   VisitOMPClauseList(C);
551   for (auto *E : C->private_copies()) {
552     if (E)
553       Profiler->VisitStmt(E);
554   }
555 }
556 void
557 OMPClauseProfiler::VisitOMPFirstprivateClause(const OMPFirstprivateClause *C) {
558   VisitOMPClauseList(C);
559   VistOMPClauseWithPreInit(C);
560   for (auto *E : C->private_copies()) {
561     if (E)
562       Profiler->VisitStmt(E);
563   }
564   for (auto *E : C->inits()) {
565     if (E)
566       Profiler->VisitStmt(E);
567   }
568 }
569 void
570 OMPClauseProfiler::VisitOMPLastprivateClause(const OMPLastprivateClause *C) {
571   VisitOMPClauseList(C);
572   VistOMPClauseWithPostUpdate(C);
573   for (auto *E : C->source_exprs()) {
574     if (E)
575       Profiler->VisitStmt(E);
576   }
577   for (auto *E : C->destination_exprs()) {
578     if (E)
579       Profiler->VisitStmt(E);
580   }
581   for (auto *E : C->assignment_ops()) {
582     if (E)
583       Profiler->VisitStmt(E);
584   }
585 }
586 void OMPClauseProfiler::VisitOMPSharedClause(const OMPSharedClause *C) {
587   VisitOMPClauseList(C);
588 }
589 void OMPClauseProfiler::VisitOMPReductionClause(
590                                          const OMPReductionClause *C) {
591   Profiler->VisitNestedNameSpecifier(
592       C->getQualifierLoc().getNestedNameSpecifier());
593   Profiler->VisitName(C->getNameInfo().getName());
594   VisitOMPClauseList(C);
595   VistOMPClauseWithPostUpdate(C);
596   for (auto *E : C->privates()) {
597     if (E)
598       Profiler->VisitStmt(E);
599   }
600   for (auto *E : C->lhs_exprs()) {
601     if (E)
602       Profiler->VisitStmt(E);
603   }
604   for (auto *E : C->rhs_exprs()) {
605     if (E)
606       Profiler->VisitStmt(E);
607   }
608   for (auto *E : C->reduction_ops()) {
609     if (E)
610       Profiler->VisitStmt(E);
611   }
612 }
613 void OMPClauseProfiler::VisitOMPTaskReductionClause(
614     const OMPTaskReductionClause *C) {
615   Profiler->VisitNestedNameSpecifier(
616       C->getQualifierLoc().getNestedNameSpecifier());
617   Profiler->VisitName(C->getNameInfo().getName());
618   VisitOMPClauseList(C);
619   VistOMPClauseWithPostUpdate(C);
620   for (auto *E : C->privates()) {
621     if (E)
622       Profiler->VisitStmt(E);
623   }
624   for (auto *E : C->lhs_exprs()) {
625     if (E)
626       Profiler->VisitStmt(E);
627   }
628   for (auto *E : C->rhs_exprs()) {
629     if (E)
630       Profiler->VisitStmt(E);
631   }
632   for (auto *E : C->reduction_ops()) {
633     if (E)
634       Profiler->VisitStmt(E);
635   }
636 }
637 void OMPClauseProfiler::VisitOMPInReductionClause(
638     const OMPInReductionClause *C) {
639   Profiler->VisitNestedNameSpecifier(
640       C->getQualifierLoc().getNestedNameSpecifier());
641   Profiler->VisitName(C->getNameInfo().getName());
642   VisitOMPClauseList(C);
643   VistOMPClauseWithPostUpdate(C);
644   for (auto *E : C->privates()) {
645     if (E)
646       Profiler->VisitStmt(E);
647   }
648   for (auto *E : C->lhs_exprs()) {
649     if (E)
650       Profiler->VisitStmt(E);
651   }
652   for (auto *E : C->rhs_exprs()) {
653     if (E)
654       Profiler->VisitStmt(E);
655   }
656   for (auto *E : C->reduction_ops()) {
657     if (E)
658       Profiler->VisitStmt(E);
659   }
660   for (auto *E : C->taskgroup_descriptors()) {
661     if (E)
662       Profiler->VisitStmt(E);
663   }
664 }
665 void OMPClauseProfiler::VisitOMPLinearClause(const OMPLinearClause *C) {
666   VisitOMPClauseList(C);
667   VistOMPClauseWithPostUpdate(C);
668   for (auto *E : C->privates()) {
669     if (E)
670       Profiler->VisitStmt(E);
671   }
672   for (auto *E : C->inits()) {
673     if (E)
674       Profiler->VisitStmt(E);
675   }
676   for (auto *E : C->updates()) {
677     if (E)
678       Profiler->VisitStmt(E);
679   }
680   for (auto *E : C->finals()) {
681     if (E)
682       Profiler->VisitStmt(E);
683   }
684   if (C->getStep())
685     Profiler->VisitStmt(C->getStep());
686   if (C->getCalcStep())
687     Profiler->VisitStmt(C->getCalcStep());
688 }
689 void OMPClauseProfiler::VisitOMPAlignedClause(const OMPAlignedClause *C) {
690   VisitOMPClauseList(C);
691   if (C->getAlignment())
692     Profiler->VisitStmt(C->getAlignment());
693 }
694 void OMPClauseProfiler::VisitOMPCopyinClause(const OMPCopyinClause *C) {
695   VisitOMPClauseList(C);
696   for (auto *E : C->source_exprs()) {
697     if (E)
698       Profiler->VisitStmt(E);
699   }
700   for (auto *E : C->destination_exprs()) {
701     if (E)
702       Profiler->VisitStmt(E);
703   }
704   for (auto *E : C->assignment_ops()) {
705     if (E)
706       Profiler->VisitStmt(E);
707   }
708 }
709 void
710 OMPClauseProfiler::VisitOMPCopyprivateClause(const OMPCopyprivateClause *C) {
711   VisitOMPClauseList(C);
712   for (auto *E : C->source_exprs()) {
713     if (E)
714       Profiler->VisitStmt(E);
715   }
716   for (auto *E : C->destination_exprs()) {
717     if (E)
718       Profiler->VisitStmt(E);
719   }
720   for (auto *E : C->assignment_ops()) {
721     if (E)
722       Profiler->VisitStmt(E);
723   }
724 }
725 void OMPClauseProfiler::VisitOMPFlushClause(const OMPFlushClause *C) {
726   VisitOMPClauseList(C);
727 }
728 void OMPClauseProfiler::VisitOMPDepobjClause(const OMPDepobjClause *C) {
729   if (const Expr *Depobj = C->getDepobj())
730     Profiler->VisitStmt(Depobj);
731 }
732 void OMPClauseProfiler::VisitOMPDependClause(const OMPDependClause *C) {
733   VisitOMPClauseList(C);
734 }
735 void OMPClauseProfiler::VisitOMPDeviceClause(const OMPDeviceClause *C) {
736   if (C->getDevice())
737     Profiler->VisitStmt(C->getDevice());
738 }
739 void OMPClauseProfiler::VisitOMPMapClause(const OMPMapClause *C) {
740   VisitOMPClauseList(C);
741 }
742 void OMPClauseProfiler::VisitOMPAllocateClause(const OMPAllocateClause *C) {
743   if (Expr *Allocator = C->getAllocator())
744     Profiler->VisitStmt(Allocator);
745   VisitOMPClauseList(C);
746 }
747 void OMPClauseProfiler::VisitOMPNumTeamsClause(const OMPNumTeamsClause *C) {
748   VistOMPClauseWithPreInit(C);
749   if (C->getNumTeams())
750     Profiler->VisitStmt(C->getNumTeams());
751 }
752 void OMPClauseProfiler::VisitOMPThreadLimitClause(
753     const OMPThreadLimitClause *C) {
754   VistOMPClauseWithPreInit(C);
755   if (C->getThreadLimit())
756     Profiler->VisitStmt(C->getThreadLimit());
757 }
758 void OMPClauseProfiler::VisitOMPPriorityClause(const OMPPriorityClause *C) {
759   VistOMPClauseWithPreInit(C);
760   if (C->getPriority())
761     Profiler->VisitStmt(C->getPriority());
762 }
763 void OMPClauseProfiler::VisitOMPGrainsizeClause(const OMPGrainsizeClause *C) {
764   VistOMPClauseWithPreInit(C);
765   if (C->getGrainsize())
766     Profiler->VisitStmt(C->getGrainsize());
767 }
768 void OMPClauseProfiler::VisitOMPNumTasksClause(const OMPNumTasksClause *C) {
769   VistOMPClauseWithPreInit(C);
770   if (C->getNumTasks())
771     Profiler->VisitStmt(C->getNumTasks());
772 }
773 void OMPClauseProfiler::VisitOMPHintClause(const OMPHintClause *C) {
774   if (C->getHint())
775     Profiler->VisitStmt(C->getHint());
776 }
777 void OMPClauseProfiler::VisitOMPToClause(const OMPToClause *C) {
778   VisitOMPClauseList(C);
779 }
780 void OMPClauseProfiler::VisitOMPFromClause(const OMPFromClause *C) {
781   VisitOMPClauseList(C);
782 }
783 void OMPClauseProfiler::VisitOMPUseDevicePtrClause(
784     const OMPUseDevicePtrClause *C) {
785   VisitOMPClauseList(C);
786 }
787 void OMPClauseProfiler::VisitOMPIsDevicePtrClause(
788     const OMPIsDevicePtrClause *C) {
789   VisitOMPClauseList(C);
790 }
791 void OMPClauseProfiler::VisitOMPNontemporalClause(
792     const OMPNontemporalClause *C) {
793   VisitOMPClauseList(C);
794   for (auto *E : C->private_refs())
795     Profiler->VisitStmt(E);
796 }
797 void OMPClauseProfiler::VisitOMPInclusiveClause(const OMPInclusiveClause *C) {
798   VisitOMPClauseList(C);
799 }
800 void OMPClauseProfiler::VisitOMPExclusiveClause(const OMPExclusiveClause *C) {
801   VisitOMPClauseList(C);
802 }
803 void OMPClauseProfiler::VisitOMPUsesAllocatorsClause(
804     const OMPUsesAllocatorsClause *C) {
805   for (unsigned I = 0, E = C->getNumberOfAllocators(); I < E; ++I) {
806     OMPUsesAllocatorsClause::Data D = C->getAllocatorData(I);
807     Profiler->VisitStmt(D.Allocator);
808     if (D.AllocatorTraits)
809       Profiler->VisitStmt(D.AllocatorTraits);
810   }
811 }
812 void OMPClauseProfiler::VisitOMPOrderClause(const OMPOrderClause *C) {}
813 } // namespace
814 
815 void
816 StmtProfiler::VisitOMPExecutableDirective(const OMPExecutableDirective *S) {
817   VisitStmt(S);
818   OMPClauseProfiler P(this);
819   ArrayRef<OMPClause *> Clauses = S->clauses();
820   for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E = Clauses.end();
821        I != E; ++I)
822     if (*I)
823       P.Visit(*I);
824 }
825 
826 void StmtProfiler::VisitOMPLoopDirective(const OMPLoopDirective *S) {
827   VisitOMPExecutableDirective(S);
828 }
829 
830 void StmtProfiler::VisitOMPParallelDirective(const OMPParallelDirective *S) {
831   VisitOMPExecutableDirective(S);
832 }
833 
834 void StmtProfiler::VisitOMPSimdDirective(const OMPSimdDirective *S) {
835   VisitOMPLoopDirective(S);
836 }
837 
838 void StmtProfiler::VisitOMPForDirective(const OMPForDirective *S) {
839   VisitOMPLoopDirective(S);
840 }
841 
842 void StmtProfiler::VisitOMPForSimdDirective(const OMPForSimdDirective *S) {
843   VisitOMPLoopDirective(S);
844 }
845 
846 void StmtProfiler::VisitOMPSectionsDirective(const OMPSectionsDirective *S) {
847   VisitOMPExecutableDirective(S);
848 }
849 
850 void StmtProfiler::VisitOMPSectionDirective(const OMPSectionDirective *S) {
851   VisitOMPExecutableDirective(S);
852 }
853 
854 void StmtProfiler::VisitOMPSingleDirective(const OMPSingleDirective *S) {
855   VisitOMPExecutableDirective(S);
856 }
857 
858 void StmtProfiler::VisitOMPMasterDirective(const OMPMasterDirective *S) {
859   VisitOMPExecutableDirective(S);
860 }
861 
862 void StmtProfiler::VisitOMPCriticalDirective(const OMPCriticalDirective *S) {
863   VisitOMPExecutableDirective(S);
864   VisitName(S->getDirectiveName().getName());
865 }
866 
867 void
868 StmtProfiler::VisitOMPParallelForDirective(const OMPParallelForDirective *S) {
869   VisitOMPLoopDirective(S);
870 }
871 
872 void StmtProfiler::VisitOMPParallelForSimdDirective(
873     const OMPParallelForSimdDirective *S) {
874   VisitOMPLoopDirective(S);
875 }
876 
877 void StmtProfiler::VisitOMPParallelMasterDirective(
878     const OMPParallelMasterDirective *S) {
879   VisitOMPExecutableDirective(S);
880 }
881 
882 void StmtProfiler::VisitOMPParallelSectionsDirective(
883     const OMPParallelSectionsDirective *S) {
884   VisitOMPExecutableDirective(S);
885 }
886 
887 void StmtProfiler::VisitOMPTaskDirective(const OMPTaskDirective *S) {
888   VisitOMPExecutableDirective(S);
889 }
890 
891 void StmtProfiler::VisitOMPTaskyieldDirective(const OMPTaskyieldDirective *S) {
892   VisitOMPExecutableDirective(S);
893 }
894 
895 void StmtProfiler::VisitOMPBarrierDirective(const OMPBarrierDirective *S) {
896   VisitOMPExecutableDirective(S);
897 }
898 
899 void StmtProfiler::VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *S) {
900   VisitOMPExecutableDirective(S);
901 }
902 
903 void StmtProfiler::VisitOMPTaskgroupDirective(const OMPTaskgroupDirective *S) {
904   VisitOMPExecutableDirective(S);
905   if (const Expr *E = S->getReductionRef())
906     VisitStmt(E);
907 }
908 
909 void StmtProfiler::VisitOMPFlushDirective(const OMPFlushDirective *S) {
910   VisitOMPExecutableDirective(S);
911 }
912 
913 void StmtProfiler::VisitOMPDepobjDirective(const OMPDepobjDirective *S) {
914   VisitOMPExecutableDirective(S);
915 }
916 
917 void StmtProfiler::VisitOMPScanDirective(const OMPScanDirective *S) {
918   VisitOMPExecutableDirective(S);
919 }
920 
921 void StmtProfiler::VisitOMPOrderedDirective(const OMPOrderedDirective *S) {
922   VisitOMPExecutableDirective(S);
923 }
924 
925 void StmtProfiler::VisitOMPAtomicDirective(const OMPAtomicDirective *S) {
926   VisitOMPExecutableDirective(S);
927 }
928 
929 void StmtProfiler::VisitOMPTargetDirective(const OMPTargetDirective *S) {
930   VisitOMPExecutableDirective(S);
931 }
932 
933 void StmtProfiler::VisitOMPTargetDataDirective(const OMPTargetDataDirective *S) {
934   VisitOMPExecutableDirective(S);
935 }
936 
937 void StmtProfiler::VisitOMPTargetEnterDataDirective(
938     const OMPTargetEnterDataDirective *S) {
939   VisitOMPExecutableDirective(S);
940 }
941 
942 void StmtProfiler::VisitOMPTargetExitDataDirective(
943     const OMPTargetExitDataDirective *S) {
944   VisitOMPExecutableDirective(S);
945 }
946 
947 void StmtProfiler::VisitOMPTargetParallelDirective(
948     const OMPTargetParallelDirective *S) {
949   VisitOMPExecutableDirective(S);
950 }
951 
952 void StmtProfiler::VisitOMPTargetParallelForDirective(
953     const OMPTargetParallelForDirective *S) {
954   VisitOMPExecutableDirective(S);
955 }
956 
957 void StmtProfiler::VisitOMPTeamsDirective(const OMPTeamsDirective *S) {
958   VisitOMPExecutableDirective(S);
959 }
960 
961 void StmtProfiler::VisitOMPCancellationPointDirective(
962     const OMPCancellationPointDirective *S) {
963   VisitOMPExecutableDirective(S);
964 }
965 
966 void StmtProfiler::VisitOMPCancelDirective(const OMPCancelDirective *S) {
967   VisitOMPExecutableDirective(S);
968 }
969 
970 void StmtProfiler::VisitOMPTaskLoopDirective(const OMPTaskLoopDirective *S) {
971   VisitOMPLoopDirective(S);
972 }
973 
974 void StmtProfiler::VisitOMPTaskLoopSimdDirective(
975     const OMPTaskLoopSimdDirective *S) {
976   VisitOMPLoopDirective(S);
977 }
978 
979 void StmtProfiler::VisitOMPMasterTaskLoopDirective(
980     const OMPMasterTaskLoopDirective *S) {
981   VisitOMPLoopDirective(S);
982 }
983 
984 void StmtProfiler::VisitOMPMasterTaskLoopSimdDirective(
985     const OMPMasterTaskLoopSimdDirective *S) {
986   VisitOMPLoopDirective(S);
987 }
988 
989 void StmtProfiler::VisitOMPParallelMasterTaskLoopDirective(
990     const OMPParallelMasterTaskLoopDirective *S) {
991   VisitOMPLoopDirective(S);
992 }
993 
994 void StmtProfiler::VisitOMPParallelMasterTaskLoopSimdDirective(
995     const OMPParallelMasterTaskLoopSimdDirective *S) {
996   VisitOMPLoopDirective(S);
997 }
998 
999 void StmtProfiler::VisitOMPDistributeDirective(
1000     const OMPDistributeDirective *S) {
1001   VisitOMPLoopDirective(S);
1002 }
1003 
1004 void OMPClauseProfiler::VisitOMPDistScheduleClause(
1005     const OMPDistScheduleClause *C) {
1006   VistOMPClauseWithPreInit(C);
1007   if (auto *S = C->getChunkSize())
1008     Profiler->VisitStmt(S);
1009 }
1010 
1011 void OMPClauseProfiler::VisitOMPDefaultmapClause(const OMPDefaultmapClause *) {}
1012 
1013 void StmtProfiler::VisitOMPTargetUpdateDirective(
1014     const OMPTargetUpdateDirective *S) {
1015   VisitOMPExecutableDirective(S);
1016 }
1017 
1018 void StmtProfiler::VisitOMPDistributeParallelForDirective(
1019     const OMPDistributeParallelForDirective *S) {
1020   VisitOMPLoopDirective(S);
1021 }
1022 
1023 void StmtProfiler::VisitOMPDistributeParallelForSimdDirective(
1024     const OMPDistributeParallelForSimdDirective *S) {
1025   VisitOMPLoopDirective(S);
1026 }
1027 
1028 void StmtProfiler::VisitOMPDistributeSimdDirective(
1029     const OMPDistributeSimdDirective *S) {
1030   VisitOMPLoopDirective(S);
1031 }
1032 
1033 void StmtProfiler::VisitOMPTargetParallelForSimdDirective(
1034     const OMPTargetParallelForSimdDirective *S) {
1035   VisitOMPLoopDirective(S);
1036 }
1037 
1038 void StmtProfiler::VisitOMPTargetSimdDirective(
1039     const OMPTargetSimdDirective *S) {
1040   VisitOMPLoopDirective(S);
1041 }
1042 
1043 void StmtProfiler::VisitOMPTeamsDistributeDirective(
1044     const OMPTeamsDistributeDirective *S) {
1045   VisitOMPLoopDirective(S);
1046 }
1047 
1048 void StmtProfiler::VisitOMPTeamsDistributeSimdDirective(
1049     const OMPTeamsDistributeSimdDirective *S) {
1050   VisitOMPLoopDirective(S);
1051 }
1052 
1053 void StmtProfiler::VisitOMPTeamsDistributeParallelForSimdDirective(
1054     const OMPTeamsDistributeParallelForSimdDirective *S) {
1055   VisitOMPLoopDirective(S);
1056 }
1057 
1058 void StmtProfiler::VisitOMPTeamsDistributeParallelForDirective(
1059     const OMPTeamsDistributeParallelForDirective *S) {
1060   VisitOMPLoopDirective(S);
1061 }
1062 
1063 void StmtProfiler::VisitOMPTargetTeamsDirective(
1064     const OMPTargetTeamsDirective *S) {
1065   VisitOMPExecutableDirective(S);
1066 }
1067 
1068 void StmtProfiler::VisitOMPTargetTeamsDistributeDirective(
1069     const OMPTargetTeamsDistributeDirective *S) {
1070   VisitOMPLoopDirective(S);
1071 }
1072 
1073 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForDirective(
1074     const OMPTargetTeamsDistributeParallelForDirective *S) {
1075   VisitOMPLoopDirective(S);
1076 }
1077 
1078 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
1079     const OMPTargetTeamsDistributeParallelForSimdDirective *S) {
1080   VisitOMPLoopDirective(S);
1081 }
1082 
1083 void StmtProfiler::VisitOMPTargetTeamsDistributeSimdDirective(
1084     const OMPTargetTeamsDistributeSimdDirective *S) {
1085   VisitOMPLoopDirective(S);
1086 }
1087 
1088 void StmtProfiler::VisitExpr(const Expr *S) {
1089   VisitStmt(S);
1090 }
1091 
1092 void StmtProfiler::VisitConstantExpr(const ConstantExpr *S) {
1093   VisitExpr(S);
1094 }
1095 
1096 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
1097   VisitExpr(S);
1098   if (!Canonical)
1099     VisitNestedNameSpecifier(S->getQualifier());
1100   VisitDecl(S->getDecl());
1101   if (!Canonical) {
1102     ID.AddBoolean(S->hasExplicitTemplateArgs());
1103     if (S->hasExplicitTemplateArgs())
1104       VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1105   }
1106 }
1107 
1108 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
1109   VisitExpr(S);
1110   ID.AddInteger(S->getIdentKind());
1111 }
1112 
1113 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
1114   VisitExpr(S);
1115   S->getValue().Profile(ID);
1116   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1117 }
1118 
1119 void StmtProfiler::VisitFixedPointLiteral(const FixedPointLiteral *S) {
1120   VisitExpr(S);
1121   S->getValue().Profile(ID);
1122   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1123 }
1124 
1125 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
1126   VisitExpr(S);
1127   ID.AddInteger(S->getKind());
1128   ID.AddInteger(S->getValue());
1129 }
1130 
1131 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
1132   VisitExpr(S);
1133   S->getValue().Profile(ID);
1134   ID.AddBoolean(S->isExact());
1135   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1136 }
1137 
1138 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
1139   VisitExpr(S);
1140 }
1141 
1142 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
1143   VisitExpr(S);
1144   ID.AddString(S->getBytes());
1145   ID.AddInteger(S->getKind());
1146 }
1147 
1148 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
1149   VisitExpr(S);
1150 }
1151 
1152 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
1153   VisitExpr(S);
1154 }
1155 
1156 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
1157   VisitExpr(S);
1158   ID.AddInteger(S->getOpcode());
1159 }
1160 
1161 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
1162   VisitType(S->getTypeSourceInfo()->getType());
1163   unsigned n = S->getNumComponents();
1164   for (unsigned i = 0; i < n; ++i) {
1165     const OffsetOfNode &ON = S->getComponent(i);
1166     ID.AddInteger(ON.getKind());
1167     switch (ON.getKind()) {
1168     case OffsetOfNode::Array:
1169       // Expressions handled below.
1170       break;
1171 
1172     case OffsetOfNode::Field:
1173       VisitDecl(ON.getField());
1174       break;
1175 
1176     case OffsetOfNode::Identifier:
1177       VisitIdentifierInfo(ON.getFieldName());
1178       break;
1179 
1180     case OffsetOfNode::Base:
1181       // These nodes are implicit, and therefore don't need profiling.
1182       break;
1183     }
1184   }
1185 
1186   VisitExpr(S);
1187 }
1188 
1189 void
1190 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
1191   VisitExpr(S);
1192   ID.AddInteger(S->getKind());
1193   if (S->isArgumentType())
1194     VisitType(S->getArgumentType());
1195 }
1196 
1197 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
1198   VisitExpr(S);
1199 }
1200 
1201 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
1202   VisitExpr(S);
1203 }
1204 
1205 void StmtProfiler::VisitOMPArrayShapingExpr(const OMPArrayShapingExpr *S) {
1206   VisitExpr(S);
1207 }
1208 
1209 void StmtProfiler::VisitOMPIteratorExpr(const OMPIteratorExpr *S) {
1210   VisitExpr(S);
1211   for (unsigned I = 0, E = S->numOfIterators(); I < E; ++I)
1212     VisitDecl(S->getIteratorDecl(I));
1213 }
1214 
1215 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
1216   VisitExpr(S);
1217 }
1218 
1219 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
1220   VisitExpr(S);
1221   VisitDecl(S->getMemberDecl());
1222   if (!Canonical)
1223     VisitNestedNameSpecifier(S->getQualifier());
1224   ID.AddBoolean(S->isArrow());
1225 }
1226 
1227 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
1228   VisitExpr(S);
1229   ID.AddBoolean(S->isFileScope());
1230 }
1231 
1232 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
1233   VisitExpr(S);
1234 }
1235 
1236 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
1237   VisitCastExpr(S);
1238   ID.AddInteger(S->getValueKind());
1239 }
1240 
1241 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
1242   VisitCastExpr(S);
1243   VisitType(S->getTypeAsWritten());
1244 }
1245 
1246 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
1247   VisitExplicitCastExpr(S);
1248 }
1249 
1250 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
1251   VisitExpr(S);
1252   ID.AddInteger(S->getOpcode());
1253 }
1254 
1255 void
1256 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
1257   VisitBinaryOperator(S);
1258 }
1259 
1260 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
1261   VisitExpr(S);
1262 }
1263 
1264 void StmtProfiler::VisitBinaryConditionalOperator(
1265     const BinaryConditionalOperator *S) {
1266   VisitExpr(S);
1267 }
1268 
1269 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
1270   VisitExpr(S);
1271   VisitDecl(S->getLabel());
1272 }
1273 
1274 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
1275   VisitExpr(S);
1276 }
1277 
1278 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
1279   VisitExpr(S);
1280 }
1281 
1282 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
1283   VisitExpr(S);
1284 }
1285 
1286 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
1287   VisitExpr(S);
1288 }
1289 
1290 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
1291   VisitExpr(S);
1292 }
1293 
1294 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
1295   VisitExpr(S);
1296 }
1297 
1298 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
1299   if (S->getSyntacticForm()) {
1300     VisitInitListExpr(S->getSyntacticForm());
1301     return;
1302   }
1303 
1304   VisitExpr(S);
1305 }
1306 
1307 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
1308   VisitExpr(S);
1309   ID.AddBoolean(S->usesGNUSyntax());
1310   for (const DesignatedInitExpr::Designator &D : S->designators()) {
1311     if (D.isFieldDesignator()) {
1312       ID.AddInteger(0);
1313       VisitName(D.getFieldName());
1314       continue;
1315     }
1316 
1317     if (D.isArrayDesignator()) {
1318       ID.AddInteger(1);
1319     } else {
1320       assert(D.isArrayRangeDesignator());
1321       ID.AddInteger(2);
1322     }
1323     ID.AddInteger(D.getFirstExprIndex());
1324   }
1325 }
1326 
1327 // Seems that if VisitInitListExpr() only works on the syntactic form of an
1328 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
1329 void StmtProfiler::VisitDesignatedInitUpdateExpr(
1330     const DesignatedInitUpdateExpr *S) {
1331   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
1332                    "initializer");
1333 }
1334 
1335 void StmtProfiler::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *S) {
1336   VisitExpr(S);
1337 }
1338 
1339 void StmtProfiler::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *S) {
1340   VisitExpr(S);
1341 }
1342 
1343 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
1344   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
1345 }
1346 
1347 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
1348   VisitExpr(S);
1349 }
1350 
1351 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
1352   VisitExpr(S);
1353   VisitName(&S->getAccessor());
1354 }
1355 
1356 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
1357   VisitExpr(S);
1358   VisitDecl(S->getBlockDecl());
1359 }
1360 
1361 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
1362   VisitExpr(S);
1363   for (const GenericSelectionExpr::ConstAssociation Assoc :
1364        S->associations()) {
1365     QualType T = Assoc.getType();
1366     if (T.isNull())
1367       ID.AddPointer(nullptr);
1368     else
1369       VisitType(T);
1370     VisitExpr(Assoc.getAssociationExpr());
1371   }
1372 }
1373 
1374 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
1375   VisitExpr(S);
1376   for (PseudoObjectExpr::const_semantics_iterator
1377          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
1378     // Normally, we would not profile the source expressions of OVEs.
1379     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
1380       Visit(OVE->getSourceExpr());
1381 }
1382 
1383 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
1384   VisitExpr(S);
1385   ID.AddInteger(S->getOp());
1386 }
1387 
1388 void StmtProfiler::VisitConceptSpecializationExpr(
1389                                            const ConceptSpecializationExpr *S) {
1390   VisitExpr(S);
1391   VisitDecl(S->getNamedConcept());
1392   for (const TemplateArgument &Arg : S->getTemplateArguments())
1393     VisitTemplateArgument(Arg);
1394 }
1395 
1396 void StmtProfiler::VisitRequiresExpr(const RequiresExpr *S) {
1397   VisitExpr(S);
1398   ID.AddInteger(S->getLocalParameters().size());
1399   for (ParmVarDecl *LocalParam : S->getLocalParameters())
1400     VisitDecl(LocalParam);
1401   ID.AddInteger(S->getRequirements().size());
1402   for (concepts::Requirement *Req : S->getRequirements()) {
1403     if (auto *TypeReq = dyn_cast<concepts::TypeRequirement>(Req)) {
1404       ID.AddInteger(concepts::Requirement::RK_Type);
1405       ID.AddBoolean(TypeReq->isSubstitutionFailure());
1406       if (!TypeReq->isSubstitutionFailure())
1407         VisitType(TypeReq->getType()->getType());
1408     } else if (auto *ExprReq = dyn_cast<concepts::ExprRequirement>(Req)) {
1409       ID.AddInteger(concepts::Requirement::RK_Compound);
1410       ID.AddBoolean(ExprReq->isExprSubstitutionFailure());
1411       if (!ExprReq->isExprSubstitutionFailure())
1412         Visit(ExprReq->getExpr());
1413       // C++2a [expr.prim.req.compound]p1 Example:
1414       //    [...] The compound-requirement in C1 requires that x++ is a valid
1415       //    expression. It is equivalent to the simple-requirement x++; [...]
1416       // We therefore do not profile isSimple() here.
1417       ID.AddBoolean(ExprReq->getNoexceptLoc().isValid());
1418       const concepts::ExprRequirement::ReturnTypeRequirement &RetReq =
1419           ExprReq->getReturnTypeRequirement();
1420       if (RetReq.isEmpty()) {
1421         ID.AddInteger(0);
1422       } else if (RetReq.isTypeConstraint()) {
1423         ID.AddInteger(1);
1424         Visit(RetReq.getTypeConstraint()->getImmediatelyDeclaredConstraint());
1425       } else {
1426         assert(RetReq.isSubstitutionFailure());
1427         ID.AddInteger(2);
1428       }
1429     } else {
1430       ID.AddInteger(concepts::Requirement::RK_Nested);
1431       auto *NestedReq = cast<concepts::NestedRequirement>(Req);
1432       ID.AddBoolean(NestedReq->isSubstitutionFailure());
1433       if (!NestedReq->isSubstitutionFailure())
1434         Visit(NestedReq->getConstraintExpr());
1435     }
1436   }
1437 }
1438 
1439 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
1440                                           UnaryOperatorKind &UnaryOp,
1441                                           BinaryOperatorKind &BinaryOp) {
1442   switch (S->getOperator()) {
1443   case OO_None:
1444   case OO_New:
1445   case OO_Delete:
1446   case OO_Array_New:
1447   case OO_Array_Delete:
1448   case OO_Arrow:
1449   case OO_Call:
1450   case OO_Conditional:
1451   case NUM_OVERLOADED_OPERATORS:
1452     llvm_unreachable("Invalid operator call kind");
1453 
1454   case OO_Plus:
1455     if (S->getNumArgs() == 1) {
1456       UnaryOp = UO_Plus;
1457       return Stmt::UnaryOperatorClass;
1458     }
1459 
1460     BinaryOp = BO_Add;
1461     return Stmt::BinaryOperatorClass;
1462 
1463   case OO_Minus:
1464     if (S->getNumArgs() == 1) {
1465       UnaryOp = UO_Minus;
1466       return Stmt::UnaryOperatorClass;
1467     }
1468 
1469     BinaryOp = BO_Sub;
1470     return Stmt::BinaryOperatorClass;
1471 
1472   case OO_Star:
1473     if (S->getNumArgs() == 1) {
1474       UnaryOp = UO_Deref;
1475       return Stmt::UnaryOperatorClass;
1476     }
1477 
1478     BinaryOp = BO_Mul;
1479     return Stmt::BinaryOperatorClass;
1480 
1481   case OO_Slash:
1482     BinaryOp = BO_Div;
1483     return Stmt::BinaryOperatorClass;
1484 
1485   case OO_Percent:
1486     BinaryOp = BO_Rem;
1487     return Stmt::BinaryOperatorClass;
1488 
1489   case OO_Caret:
1490     BinaryOp = BO_Xor;
1491     return Stmt::BinaryOperatorClass;
1492 
1493   case OO_Amp:
1494     if (S->getNumArgs() == 1) {
1495       UnaryOp = UO_AddrOf;
1496       return Stmt::UnaryOperatorClass;
1497     }
1498 
1499     BinaryOp = BO_And;
1500     return Stmt::BinaryOperatorClass;
1501 
1502   case OO_Pipe:
1503     BinaryOp = BO_Or;
1504     return Stmt::BinaryOperatorClass;
1505 
1506   case OO_Tilde:
1507     UnaryOp = UO_Not;
1508     return Stmt::UnaryOperatorClass;
1509 
1510   case OO_Exclaim:
1511     UnaryOp = UO_LNot;
1512     return Stmt::UnaryOperatorClass;
1513 
1514   case OO_Equal:
1515     BinaryOp = BO_Assign;
1516     return Stmt::BinaryOperatorClass;
1517 
1518   case OO_Less:
1519     BinaryOp = BO_LT;
1520     return Stmt::BinaryOperatorClass;
1521 
1522   case OO_Greater:
1523     BinaryOp = BO_GT;
1524     return Stmt::BinaryOperatorClass;
1525 
1526   case OO_PlusEqual:
1527     BinaryOp = BO_AddAssign;
1528     return Stmt::CompoundAssignOperatorClass;
1529 
1530   case OO_MinusEqual:
1531     BinaryOp = BO_SubAssign;
1532     return Stmt::CompoundAssignOperatorClass;
1533 
1534   case OO_StarEqual:
1535     BinaryOp = BO_MulAssign;
1536     return Stmt::CompoundAssignOperatorClass;
1537 
1538   case OO_SlashEqual:
1539     BinaryOp = BO_DivAssign;
1540     return Stmt::CompoundAssignOperatorClass;
1541 
1542   case OO_PercentEqual:
1543     BinaryOp = BO_RemAssign;
1544     return Stmt::CompoundAssignOperatorClass;
1545 
1546   case OO_CaretEqual:
1547     BinaryOp = BO_XorAssign;
1548     return Stmt::CompoundAssignOperatorClass;
1549 
1550   case OO_AmpEqual:
1551     BinaryOp = BO_AndAssign;
1552     return Stmt::CompoundAssignOperatorClass;
1553 
1554   case OO_PipeEqual:
1555     BinaryOp = BO_OrAssign;
1556     return Stmt::CompoundAssignOperatorClass;
1557 
1558   case OO_LessLess:
1559     BinaryOp = BO_Shl;
1560     return Stmt::BinaryOperatorClass;
1561 
1562   case OO_GreaterGreater:
1563     BinaryOp = BO_Shr;
1564     return Stmt::BinaryOperatorClass;
1565 
1566   case OO_LessLessEqual:
1567     BinaryOp = BO_ShlAssign;
1568     return Stmt::CompoundAssignOperatorClass;
1569 
1570   case OO_GreaterGreaterEqual:
1571     BinaryOp = BO_ShrAssign;
1572     return Stmt::CompoundAssignOperatorClass;
1573 
1574   case OO_EqualEqual:
1575     BinaryOp = BO_EQ;
1576     return Stmt::BinaryOperatorClass;
1577 
1578   case OO_ExclaimEqual:
1579     BinaryOp = BO_NE;
1580     return Stmt::BinaryOperatorClass;
1581 
1582   case OO_LessEqual:
1583     BinaryOp = BO_LE;
1584     return Stmt::BinaryOperatorClass;
1585 
1586   case OO_GreaterEqual:
1587     BinaryOp = BO_GE;
1588     return Stmt::BinaryOperatorClass;
1589 
1590   case OO_Spaceship:
1591     BinaryOp = BO_Cmp;
1592     return Stmt::BinaryOperatorClass;
1593 
1594   case OO_AmpAmp:
1595     BinaryOp = BO_LAnd;
1596     return Stmt::BinaryOperatorClass;
1597 
1598   case OO_PipePipe:
1599     BinaryOp = BO_LOr;
1600     return Stmt::BinaryOperatorClass;
1601 
1602   case OO_PlusPlus:
1603     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1604                                   : UO_PostInc;
1605     return Stmt::UnaryOperatorClass;
1606 
1607   case OO_MinusMinus:
1608     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1609                                   : UO_PostDec;
1610     return Stmt::UnaryOperatorClass;
1611 
1612   case OO_Comma:
1613     BinaryOp = BO_Comma;
1614     return Stmt::BinaryOperatorClass;
1615 
1616   case OO_ArrowStar:
1617     BinaryOp = BO_PtrMemI;
1618     return Stmt::BinaryOperatorClass;
1619 
1620   case OO_Subscript:
1621     return Stmt::ArraySubscriptExprClass;
1622 
1623   case OO_Coawait:
1624     UnaryOp = UO_Coawait;
1625     return Stmt::UnaryOperatorClass;
1626   }
1627 
1628   llvm_unreachable("Invalid overloaded operator expression");
1629 }
1630 
1631 #if defined(_MSC_VER) && !defined(__clang__)
1632 #if _MSC_VER == 1911
1633 // Work around https://developercommunity.visualstudio.com/content/problem/84002/clang-cl-when-built-with-vc-2017-crashes-cause-vc.html
1634 // MSVC 2017 update 3 miscompiles this function, and a clang built with it
1635 // will crash in stage 2 of a bootstrap build.
1636 #pragma optimize("", off)
1637 #endif
1638 #endif
1639 
1640 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1641   if (S->isTypeDependent()) {
1642     // Type-dependent operator calls are profiled like their underlying
1643     // syntactic operator.
1644     //
1645     // An operator call to operator-> is always implicit, so just skip it. The
1646     // enclosing MemberExpr will profile the actual member access.
1647     if (S->getOperator() == OO_Arrow)
1648       return Visit(S->getArg(0));
1649 
1650     UnaryOperatorKind UnaryOp = UO_Extension;
1651     BinaryOperatorKind BinaryOp = BO_Comma;
1652     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1653 
1654     ID.AddInteger(SC);
1655     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1656       Visit(S->getArg(I));
1657     if (SC == Stmt::UnaryOperatorClass)
1658       ID.AddInteger(UnaryOp);
1659     else if (SC == Stmt::BinaryOperatorClass ||
1660              SC == Stmt::CompoundAssignOperatorClass)
1661       ID.AddInteger(BinaryOp);
1662     else
1663       assert(SC == Stmt::ArraySubscriptExprClass);
1664 
1665     return;
1666   }
1667 
1668   VisitCallExpr(S);
1669   ID.AddInteger(S->getOperator());
1670 }
1671 
1672 void StmtProfiler::VisitCXXRewrittenBinaryOperator(
1673     const CXXRewrittenBinaryOperator *S) {
1674   // If a rewritten operator were ever to be type-dependent, we should profile
1675   // it following its syntactic operator.
1676   assert(!S->isTypeDependent() &&
1677          "resolved rewritten operator should never be type-dependent");
1678   ID.AddBoolean(S->isReversed());
1679   VisitExpr(S->getSemanticForm());
1680 }
1681 
1682 #if defined(_MSC_VER) && !defined(__clang__)
1683 #if _MSC_VER == 1911
1684 #pragma optimize("", on)
1685 #endif
1686 #endif
1687 
1688 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1689   VisitCallExpr(S);
1690 }
1691 
1692 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1693   VisitCallExpr(S);
1694 }
1695 
1696 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1697   VisitExpr(S);
1698 }
1699 
1700 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1701   VisitExplicitCastExpr(S);
1702 }
1703 
1704 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1705   VisitCXXNamedCastExpr(S);
1706 }
1707 
1708 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1709   VisitCXXNamedCastExpr(S);
1710 }
1711 
1712 void
1713 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1714   VisitCXXNamedCastExpr(S);
1715 }
1716 
1717 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1718   VisitCXXNamedCastExpr(S);
1719 }
1720 
1721 void StmtProfiler::VisitBuiltinBitCastExpr(const BuiltinBitCastExpr *S) {
1722   VisitExpr(S);
1723   VisitType(S->getTypeInfoAsWritten()->getType());
1724 }
1725 
1726 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1727   VisitCallExpr(S);
1728 }
1729 
1730 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1731   VisitExpr(S);
1732   ID.AddBoolean(S->getValue());
1733 }
1734 
1735 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1736   VisitExpr(S);
1737 }
1738 
1739 void StmtProfiler::VisitCXXStdInitializerListExpr(
1740     const CXXStdInitializerListExpr *S) {
1741   VisitExpr(S);
1742 }
1743 
1744 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1745   VisitExpr(S);
1746   if (S->isTypeOperand())
1747     VisitType(S->getTypeOperandSourceInfo()->getType());
1748 }
1749 
1750 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1751   VisitExpr(S);
1752   if (S->isTypeOperand())
1753     VisitType(S->getTypeOperandSourceInfo()->getType());
1754 }
1755 
1756 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1757   VisitExpr(S);
1758   VisitDecl(S->getPropertyDecl());
1759 }
1760 
1761 void StmtProfiler::VisitMSPropertySubscriptExpr(
1762     const MSPropertySubscriptExpr *S) {
1763   VisitExpr(S);
1764 }
1765 
1766 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1767   VisitExpr(S);
1768   ID.AddBoolean(S->isImplicit());
1769 }
1770 
1771 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1772   VisitExpr(S);
1773 }
1774 
1775 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1776   VisitExpr(S);
1777   VisitDecl(S->getParam());
1778 }
1779 
1780 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1781   VisitExpr(S);
1782   VisitDecl(S->getField());
1783 }
1784 
1785 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1786   VisitExpr(S);
1787   VisitDecl(
1788          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1789 }
1790 
1791 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1792   VisitExpr(S);
1793   VisitDecl(S->getConstructor());
1794   ID.AddBoolean(S->isElidable());
1795 }
1796 
1797 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
1798     const CXXInheritedCtorInitExpr *S) {
1799   VisitExpr(S);
1800   VisitDecl(S->getConstructor());
1801 }
1802 
1803 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1804   VisitExplicitCastExpr(S);
1805 }
1806 
1807 void
1808 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1809   VisitCXXConstructExpr(S);
1810 }
1811 
1812 void
1813 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1814   VisitExpr(S);
1815   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1816                                  CEnd = S->explicit_capture_end();
1817        C != CEnd; ++C) {
1818     if (C->capturesVLAType())
1819       continue;
1820 
1821     ID.AddInteger(C->getCaptureKind());
1822     switch (C->getCaptureKind()) {
1823     case LCK_StarThis:
1824     case LCK_This:
1825       break;
1826     case LCK_ByRef:
1827     case LCK_ByCopy:
1828       VisitDecl(C->getCapturedVar());
1829       ID.AddBoolean(C->isPackExpansion());
1830       break;
1831     case LCK_VLAType:
1832       llvm_unreachable("VLA type in explicit captures.");
1833     }
1834   }
1835   // Note: If we actually needed to be able to match lambda
1836   // expressions, we would have to consider parameters and return type
1837   // here, among other things.
1838   VisitStmt(S->getBody());
1839 }
1840 
1841 void
1842 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1843   VisitExpr(S);
1844 }
1845 
1846 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1847   VisitExpr(S);
1848   ID.AddBoolean(S->isGlobalDelete());
1849   ID.AddBoolean(S->isArrayForm());
1850   VisitDecl(S->getOperatorDelete());
1851 }
1852 
1853 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1854   VisitExpr(S);
1855   VisitType(S->getAllocatedType());
1856   VisitDecl(S->getOperatorNew());
1857   VisitDecl(S->getOperatorDelete());
1858   ID.AddBoolean(S->isArray());
1859   ID.AddInteger(S->getNumPlacementArgs());
1860   ID.AddBoolean(S->isGlobalNew());
1861   ID.AddBoolean(S->isParenTypeId());
1862   ID.AddInteger(S->getInitializationStyle());
1863 }
1864 
1865 void
1866 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1867   VisitExpr(S);
1868   ID.AddBoolean(S->isArrow());
1869   VisitNestedNameSpecifier(S->getQualifier());
1870   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1871   if (S->getScopeTypeInfo())
1872     VisitType(S->getScopeTypeInfo()->getType());
1873   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1874   if (S->getDestroyedTypeInfo())
1875     VisitType(S->getDestroyedType());
1876   else
1877     VisitIdentifierInfo(S->getDestroyedTypeIdentifier());
1878 }
1879 
1880 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1881   VisitExpr(S);
1882   VisitNestedNameSpecifier(S->getQualifier());
1883   VisitName(S->getName(), /*TreatAsDecl*/ true);
1884   ID.AddBoolean(S->hasExplicitTemplateArgs());
1885   if (S->hasExplicitTemplateArgs())
1886     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1887 }
1888 
1889 void
1890 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1891   VisitOverloadExpr(S);
1892 }
1893 
1894 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1895   VisitExpr(S);
1896   ID.AddInteger(S->getTrait());
1897   ID.AddInteger(S->getNumArgs());
1898   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1899     VisitType(S->getArg(I)->getType());
1900 }
1901 
1902 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1903   VisitExpr(S);
1904   ID.AddInteger(S->getTrait());
1905   VisitType(S->getQueriedType());
1906 }
1907 
1908 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1909   VisitExpr(S);
1910   ID.AddInteger(S->getTrait());
1911   VisitExpr(S->getQueriedExpression());
1912 }
1913 
1914 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1915     const DependentScopeDeclRefExpr *S) {
1916   VisitExpr(S);
1917   VisitName(S->getDeclName());
1918   VisitNestedNameSpecifier(S->getQualifier());
1919   ID.AddBoolean(S->hasExplicitTemplateArgs());
1920   if (S->hasExplicitTemplateArgs())
1921     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1922 }
1923 
1924 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1925   VisitExpr(S);
1926 }
1927 
1928 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1929     const CXXUnresolvedConstructExpr *S) {
1930   VisitExpr(S);
1931   VisitType(S->getTypeAsWritten());
1932   ID.AddInteger(S->isListInitialization());
1933 }
1934 
1935 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1936     const CXXDependentScopeMemberExpr *S) {
1937   ID.AddBoolean(S->isImplicitAccess());
1938   if (!S->isImplicitAccess()) {
1939     VisitExpr(S);
1940     ID.AddBoolean(S->isArrow());
1941   }
1942   VisitNestedNameSpecifier(S->getQualifier());
1943   VisitName(S->getMember());
1944   ID.AddBoolean(S->hasExplicitTemplateArgs());
1945   if (S->hasExplicitTemplateArgs())
1946     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1947 }
1948 
1949 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1950   ID.AddBoolean(S->isImplicitAccess());
1951   if (!S->isImplicitAccess()) {
1952     VisitExpr(S);
1953     ID.AddBoolean(S->isArrow());
1954   }
1955   VisitNestedNameSpecifier(S->getQualifier());
1956   VisitName(S->getMemberName());
1957   ID.AddBoolean(S->hasExplicitTemplateArgs());
1958   if (S->hasExplicitTemplateArgs())
1959     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1960 }
1961 
1962 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1963   VisitExpr(S);
1964 }
1965 
1966 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1967   VisitExpr(S);
1968 }
1969 
1970 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1971   VisitExpr(S);
1972   VisitDecl(S->getPack());
1973   if (S->isPartiallySubstituted()) {
1974     auto Args = S->getPartialArguments();
1975     ID.AddInteger(Args.size());
1976     for (const auto &TA : Args)
1977       VisitTemplateArgument(TA);
1978   } else {
1979     ID.AddInteger(0);
1980   }
1981 }
1982 
1983 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1984     const SubstNonTypeTemplateParmPackExpr *S) {
1985   VisitExpr(S);
1986   VisitDecl(S->getParameterPack());
1987   VisitTemplateArgument(S->getArgumentPack());
1988 }
1989 
1990 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
1991     const SubstNonTypeTemplateParmExpr *E) {
1992   // Profile exactly as the replacement expression.
1993   Visit(E->getReplacement());
1994 }
1995 
1996 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
1997   VisitExpr(S);
1998   VisitDecl(S->getParameterPack());
1999   ID.AddInteger(S->getNumExpansions());
2000   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
2001     VisitDecl(*I);
2002 }
2003 
2004 void StmtProfiler::VisitMaterializeTemporaryExpr(
2005                                            const MaterializeTemporaryExpr *S) {
2006   VisitExpr(S);
2007 }
2008 
2009 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
2010   VisitExpr(S);
2011   ID.AddInteger(S->getOperator());
2012 }
2013 
2014 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
2015   VisitStmt(S);
2016 }
2017 
2018 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
2019   VisitStmt(S);
2020 }
2021 
2022 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
2023   VisitExpr(S);
2024 }
2025 
2026 void StmtProfiler::VisitDependentCoawaitExpr(const DependentCoawaitExpr *S) {
2027   VisitExpr(S);
2028 }
2029 
2030 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
2031   VisitExpr(S);
2032 }
2033 
2034 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
2035   VisitExpr(E);
2036 }
2037 
2038 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
2039   VisitExpr(E);
2040 }
2041 
2042 void StmtProfiler::VisitSourceLocExpr(const SourceLocExpr *E) {
2043   VisitExpr(E);
2044 }
2045 
2046 void StmtProfiler::VisitRecoveryExpr(const RecoveryExpr *E) { VisitExpr(E); }
2047 
2048 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
2049   VisitExpr(S);
2050 }
2051 
2052 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
2053   VisitExpr(E);
2054 }
2055 
2056 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
2057   VisitExpr(E);
2058 }
2059 
2060 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
2061   VisitExpr(E);
2062 }
2063 
2064 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
2065   VisitExpr(S);
2066   VisitType(S->getEncodedType());
2067 }
2068 
2069 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
2070   VisitExpr(S);
2071   VisitName(S->getSelector());
2072 }
2073 
2074 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
2075   VisitExpr(S);
2076   VisitDecl(S->getProtocol());
2077 }
2078 
2079 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
2080   VisitExpr(S);
2081   VisitDecl(S->getDecl());
2082   ID.AddBoolean(S->isArrow());
2083   ID.AddBoolean(S->isFreeIvar());
2084 }
2085 
2086 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
2087   VisitExpr(S);
2088   if (S->isImplicitProperty()) {
2089     VisitDecl(S->getImplicitPropertyGetter());
2090     VisitDecl(S->getImplicitPropertySetter());
2091   } else {
2092     VisitDecl(S->getExplicitProperty());
2093   }
2094   if (S->isSuperReceiver()) {
2095     ID.AddBoolean(S->isSuperReceiver());
2096     VisitType(S->getSuperReceiverType());
2097   }
2098 }
2099 
2100 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
2101   VisitExpr(S);
2102   VisitDecl(S->getAtIndexMethodDecl());
2103   VisitDecl(S->setAtIndexMethodDecl());
2104 }
2105 
2106 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
2107   VisitExpr(S);
2108   VisitName(S->getSelector());
2109   VisitDecl(S->getMethodDecl());
2110 }
2111 
2112 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
2113   VisitExpr(S);
2114   ID.AddBoolean(S->isArrow());
2115 }
2116 
2117 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
2118   VisitExpr(S);
2119   ID.AddBoolean(S->getValue());
2120 }
2121 
2122 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
2123     const ObjCIndirectCopyRestoreExpr *S) {
2124   VisitExpr(S);
2125   ID.AddBoolean(S->shouldCopy());
2126 }
2127 
2128 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
2129   VisitExplicitCastExpr(S);
2130   ID.AddBoolean(S->getBridgeKind());
2131 }
2132 
2133 void StmtProfiler::VisitObjCAvailabilityCheckExpr(
2134     const ObjCAvailabilityCheckExpr *S) {
2135   VisitExpr(S);
2136 }
2137 
2138 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
2139                                           unsigned NumArgs) {
2140   ID.AddInteger(NumArgs);
2141   for (unsigned I = 0; I != NumArgs; ++I)
2142     VisitTemplateArgument(Args[I].getArgument());
2143 }
2144 
2145 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
2146   // Mostly repetitive with TemplateArgument::Profile!
2147   ID.AddInteger(Arg.getKind());
2148   switch (Arg.getKind()) {
2149   case TemplateArgument::Null:
2150     break;
2151 
2152   case TemplateArgument::Type:
2153     VisitType(Arg.getAsType());
2154     break;
2155 
2156   case TemplateArgument::Template:
2157   case TemplateArgument::TemplateExpansion:
2158     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
2159     break;
2160 
2161   case TemplateArgument::Declaration:
2162     VisitDecl(Arg.getAsDecl());
2163     break;
2164 
2165   case TemplateArgument::NullPtr:
2166     VisitType(Arg.getNullPtrType());
2167     break;
2168 
2169   case TemplateArgument::Integral:
2170     Arg.getAsIntegral().Profile(ID);
2171     VisitType(Arg.getIntegralType());
2172     break;
2173 
2174   case TemplateArgument::Expression:
2175     Visit(Arg.getAsExpr());
2176     break;
2177 
2178   case TemplateArgument::Pack:
2179     for (const auto &P : Arg.pack_elements())
2180       VisitTemplateArgument(P);
2181     break;
2182   }
2183 }
2184 
2185 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
2186                    bool Canonical) const {
2187   StmtProfilerWithPointers Profiler(ID, Context, Canonical);
2188   Profiler.Visit(this);
2189 }
2190 
2191 void Stmt::ProcessODRHash(llvm::FoldingSetNodeID &ID,
2192                           class ODRHash &Hash) const {
2193   StmtProfilerWithoutPointers Profiler(ID, Hash);
2194   Profiler.Visit(this);
2195 }
2196