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::VisitOMPOrderClause(const OMPOrderClause *C) {}
804 } // namespace
805 
806 void
807 StmtProfiler::VisitOMPExecutableDirective(const OMPExecutableDirective *S) {
808   VisitStmt(S);
809   OMPClauseProfiler P(this);
810   ArrayRef<OMPClause *> Clauses = S->clauses();
811   for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E = Clauses.end();
812        I != E; ++I)
813     if (*I)
814       P.Visit(*I);
815 }
816 
817 void StmtProfiler::VisitOMPLoopDirective(const OMPLoopDirective *S) {
818   VisitOMPExecutableDirective(S);
819 }
820 
821 void StmtProfiler::VisitOMPParallelDirective(const OMPParallelDirective *S) {
822   VisitOMPExecutableDirective(S);
823 }
824 
825 void StmtProfiler::VisitOMPSimdDirective(const OMPSimdDirective *S) {
826   VisitOMPLoopDirective(S);
827 }
828 
829 void StmtProfiler::VisitOMPForDirective(const OMPForDirective *S) {
830   VisitOMPLoopDirective(S);
831 }
832 
833 void StmtProfiler::VisitOMPForSimdDirective(const OMPForSimdDirective *S) {
834   VisitOMPLoopDirective(S);
835 }
836 
837 void StmtProfiler::VisitOMPSectionsDirective(const OMPSectionsDirective *S) {
838   VisitOMPExecutableDirective(S);
839 }
840 
841 void StmtProfiler::VisitOMPSectionDirective(const OMPSectionDirective *S) {
842   VisitOMPExecutableDirective(S);
843 }
844 
845 void StmtProfiler::VisitOMPSingleDirective(const OMPSingleDirective *S) {
846   VisitOMPExecutableDirective(S);
847 }
848 
849 void StmtProfiler::VisitOMPMasterDirective(const OMPMasterDirective *S) {
850   VisitOMPExecutableDirective(S);
851 }
852 
853 void StmtProfiler::VisitOMPCriticalDirective(const OMPCriticalDirective *S) {
854   VisitOMPExecutableDirective(S);
855   VisitName(S->getDirectiveName().getName());
856 }
857 
858 void
859 StmtProfiler::VisitOMPParallelForDirective(const OMPParallelForDirective *S) {
860   VisitOMPLoopDirective(S);
861 }
862 
863 void StmtProfiler::VisitOMPParallelForSimdDirective(
864     const OMPParallelForSimdDirective *S) {
865   VisitOMPLoopDirective(S);
866 }
867 
868 void StmtProfiler::VisitOMPParallelMasterDirective(
869     const OMPParallelMasterDirective *S) {
870   VisitOMPExecutableDirective(S);
871 }
872 
873 void StmtProfiler::VisitOMPParallelSectionsDirective(
874     const OMPParallelSectionsDirective *S) {
875   VisitOMPExecutableDirective(S);
876 }
877 
878 void StmtProfiler::VisitOMPTaskDirective(const OMPTaskDirective *S) {
879   VisitOMPExecutableDirective(S);
880 }
881 
882 void StmtProfiler::VisitOMPTaskyieldDirective(const OMPTaskyieldDirective *S) {
883   VisitOMPExecutableDirective(S);
884 }
885 
886 void StmtProfiler::VisitOMPBarrierDirective(const OMPBarrierDirective *S) {
887   VisitOMPExecutableDirective(S);
888 }
889 
890 void StmtProfiler::VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *S) {
891   VisitOMPExecutableDirective(S);
892 }
893 
894 void StmtProfiler::VisitOMPTaskgroupDirective(const OMPTaskgroupDirective *S) {
895   VisitOMPExecutableDirective(S);
896   if (const Expr *E = S->getReductionRef())
897     VisitStmt(E);
898 }
899 
900 void StmtProfiler::VisitOMPFlushDirective(const OMPFlushDirective *S) {
901   VisitOMPExecutableDirective(S);
902 }
903 
904 void StmtProfiler::VisitOMPDepobjDirective(const OMPDepobjDirective *S) {
905   VisitOMPExecutableDirective(S);
906 }
907 
908 void StmtProfiler::VisitOMPScanDirective(const OMPScanDirective *S) {
909   VisitOMPExecutableDirective(S);
910 }
911 
912 void StmtProfiler::VisitOMPOrderedDirective(const OMPOrderedDirective *S) {
913   VisitOMPExecutableDirective(S);
914 }
915 
916 void StmtProfiler::VisitOMPAtomicDirective(const OMPAtomicDirective *S) {
917   VisitOMPExecutableDirective(S);
918 }
919 
920 void StmtProfiler::VisitOMPTargetDirective(const OMPTargetDirective *S) {
921   VisitOMPExecutableDirective(S);
922 }
923 
924 void StmtProfiler::VisitOMPTargetDataDirective(const OMPTargetDataDirective *S) {
925   VisitOMPExecutableDirective(S);
926 }
927 
928 void StmtProfiler::VisitOMPTargetEnterDataDirective(
929     const OMPTargetEnterDataDirective *S) {
930   VisitOMPExecutableDirective(S);
931 }
932 
933 void StmtProfiler::VisitOMPTargetExitDataDirective(
934     const OMPTargetExitDataDirective *S) {
935   VisitOMPExecutableDirective(S);
936 }
937 
938 void StmtProfiler::VisitOMPTargetParallelDirective(
939     const OMPTargetParallelDirective *S) {
940   VisitOMPExecutableDirective(S);
941 }
942 
943 void StmtProfiler::VisitOMPTargetParallelForDirective(
944     const OMPTargetParallelForDirective *S) {
945   VisitOMPExecutableDirective(S);
946 }
947 
948 void StmtProfiler::VisitOMPTeamsDirective(const OMPTeamsDirective *S) {
949   VisitOMPExecutableDirective(S);
950 }
951 
952 void StmtProfiler::VisitOMPCancellationPointDirective(
953     const OMPCancellationPointDirective *S) {
954   VisitOMPExecutableDirective(S);
955 }
956 
957 void StmtProfiler::VisitOMPCancelDirective(const OMPCancelDirective *S) {
958   VisitOMPExecutableDirective(S);
959 }
960 
961 void StmtProfiler::VisitOMPTaskLoopDirective(const OMPTaskLoopDirective *S) {
962   VisitOMPLoopDirective(S);
963 }
964 
965 void StmtProfiler::VisitOMPTaskLoopSimdDirective(
966     const OMPTaskLoopSimdDirective *S) {
967   VisitOMPLoopDirective(S);
968 }
969 
970 void StmtProfiler::VisitOMPMasterTaskLoopDirective(
971     const OMPMasterTaskLoopDirective *S) {
972   VisitOMPLoopDirective(S);
973 }
974 
975 void StmtProfiler::VisitOMPMasterTaskLoopSimdDirective(
976     const OMPMasterTaskLoopSimdDirective *S) {
977   VisitOMPLoopDirective(S);
978 }
979 
980 void StmtProfiler::VisitOMPParallelMasterTaskLoopDirective(
981     const OMPParallelMasterTaskLoopDirective *S) {
982   VisitOMPLoopDirective(S);
983 }
984 
985 void StmtProfiler::VisitOMPParallelMasterTaskLoopSimdDirective(
986     const OMPParallelMasterTaskLoopSimdDirective *S) {
987   VisitOMPLoopDirective(S);
988 }
989 
990 void StmtProfiler::VisitOMPDistributeDirective(
991     const OMPDistributeDirective *S) {
992   VisitOMPLoopDirective(S);
993 }
994 
995 void OMPClauseProfiler::VisitOMPDistScheduleClause(
996     const OMPDistScheduleClause *C) {
997   VistOMPClauseWithPreInit(C);
998   if (auto *S = C->getChunkSize())
999     Profiler->VisitStmt(S);
1000 }
1001 
1002 void OMPClauseProfiler::VisitOMPDefaultmapClause(const OMPDefaultmapClause *) {}
1003 
1004 void StmtProfiler::VisitOMPTargetUpdateDirective(
1005     const OMPTargetUpdateDirective *S) {
1006   VisitOMPExecutableDirective(S);
1007 }
1008 
1009 void StmtProfiler::VisitOMPDistributeParallelForDirective(
1010     const OMPDistributeParallelForDirective *S) {
1011   VisitOMPLoopDirective(S);
1012 }
1013 
1014 void StmtProfiler::VisitOMPDistributeParallelForSimdDirective(
1015     const OMPDistributeParallelForSimdDirective *S) {
1016   VisitOMPLoopDirective(S);
1017 }
1018 
1019 void StmtProfiler::VisitOMPDistributeSimdDirective(
1020     const OMPDistributeSimdDirective *S) {
1021   VisitOMPLoopDirective(S);
1022 }
1023 
1024 void StmtProfiler::VisitOMPTargetParallelForSimdDirective(
1025     const OMPTargetParallelForSimdDirective *S) {
1026   VisitOMPLoopDirective(S);
1027 }
1028 
1029 void StmtProfiler::VisitOMPTargetSimdDirective(
1030     const OMPTargetSimdDirective *S) {
1031   VisitOMPLoopDirective(S);
1032 }
1033 
1034 void StmtProfiler::VisitOMPTeamsDistributeDirective(
1035     const OMPTeamsDistributeDirective *S) {
1036   VisitOMPLoopDirective(S);
1037 }
1038 
1039 void StmtProfiler::VisitOMPTeamsDistributeSimdDirective(
1040     const OMPTeamsDistributeSimdDirective *S) {
1041   VisitOMPLoopDirective(S);
1042 }
1043 
1044 void StmtProfiler::VisitOMPTeamsDistributeParallelForSimdDirective(
1045     const OMPTeamsDistributeParallelForSimdDirective *S) {
1046   VisitOMPLoopDirective(S);
1047 }
1048 
1049 void StmtProfiler::VisitOMPTeamsDistributeParallelForDirective(
1050     const OMPTeamsDistributeParallelForDirective *S) {
1051   VisitOMPLoopDirective(S);
1052 }
1053 
1054 void StmtProfiler::VisitOMPTargetTeamsDirective(
1055     const OMPTargetTeamsDirective *S) {
1056   VisitOMPExecutableDirective(S);
1057 }
1058 
1059 void StmtProfiler::VisitOMPTargetTeamsDistributeDirective(
1060     const OMPTargetTeamsDistributeDirective *S) {
1061   VisitOMPLoopDirective(S);
1062 }
1063 
1064 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForDirective(
1065     const OMPTargetTeamsDistributeParallelForDirective *S) {
1066   VisitOMPLoopDirective(S);
1067 }
1068 
1069 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
1070     const OMPTargetTeamsDistributeParallelForSimdDirective *S) {
1071   VisitOMPLoopDirective(S);
1072 }
1073 
1074 void StmtProfiler::VisitOMPTargetTeamsDistributeSimdDirective(
1075     const OMPTargetTeamsDistributeSimdDirective *S) {
1076   VisitOMPLoopDirective(S);
1077 }
1078 
1079 void StmtProfiler::VisitExpr(const Expr *S) {
1080   VisitStmt(S);
1081 }
1082 
1083 void StmtProfiler::VisitConstantExpr(const ConstantExpr *S) {
1084   VisitExpr(S);
1085 }
1086 
1087 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
1088   VisitExpr(S);
1089   if (!Canonical)
1090     VisitNestedNameSpecifier(S->getQualifier());
1091   VisitDecl(S->getDecl());
1092   if (!Canonical) {
1093     ID.AddBoolean(S->hasExplicitTemplateArgs());
1094     if (S->hasExplicitTemplateArgs())
1095       VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1096   }
1097 }
1098 
1099 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
1100   VisitExpr(S);
1101   ID.AddInteger(S->getIdentKind());
1102 }
1103 
1104 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
1105   VisitExpr(S);
1106   S->getValue().Profile(ID);
1107   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1108 }
1109 
1110 void StmtProfiler::VisitFixedPointLiteral(const FixedPointLiteral *S) {
1111   VisitExpr(S);
1112   S->getValue().Profile(ID);
1113   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1114 }
1115 
1116 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
1117   VisitExpr(S);
1118   ID.AddInteger(S->getKind());
1119   ID.AddInteger(S->getValue());
1120 }
1121 
1122 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
1123   VisitExpr(S);
1124   S->getValue().Profile(ID);
1125   ID.AddBoolean(S->isExact());
1126   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1127 }
1128 
1129 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
1130   VisitExpr(S);
1131 }
1132 
1133 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
1134   VisitExpr(S);
1135   ID.AddString(S->getBytes());
1136   ID.AddInteger(S->getKind());
1137 }
1138 
1139 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
1140   VisitExpr(S);
1141 }
1142 
1143 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
1144   VisitExpr(S);
1145 }
1146 
1147 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
1148   VisitExpr(S);
1149   ID.AddInteger(S->getOpcode());
1150 }
1151 
1152 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
1153   VisitType(S->getTypeSourceInfo()->getType());
1154   unsigned n = S->getNumComponents();
1155   for (unsigned i = 0; i < n; ++i) {
1156     const OffsetOfNode &ON = S->getComponent(i);
1157     ID.AddInteger(ON.getKind());
1158     switch (ON.getKind()) {
1159     case OffsetOfNode::Array:
1160       // Expressions handled below.
1161       break;
1162 
1163     case OffsetOfNode::Field:
1164       VisitDecl(ON.getField());
1165       break;
1166 
1167     case OffsetOfNode::Identifier:
1168       VisitIdentifierInfo(ON.getFieldName());
1169       break;
1170 
1171     case OffsetOfNode::Base:
1172       // These nodes are implicit, and therefore don't need profiling.
1173       break;
1174     }
1175   }
1176 
1177   VisitExpr(S);
1178 }
1179 
1180 void
1181 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
1182   VisitExpr(S);
1183   ID.AddInteger(S->getKind());
1184   if (S->isArgumentType())
1185     VisitType(S->getArgumentType());
1186 }
1187 
1188 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
1189   VisitExpr(S);
1190 }
1191 
1192 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
1193   VisitExpr(S);
1194 }
1195 
1196 void StmtProfiler::VisitOMPArrayShapingExpr(const OMPArrayShapingExpr *S) {
1197   VisitExpr(S);
1198 }
1199 
1200 void StmtProfiler::VisitOMPIteratorExpr(const OMPIteratorExpr *S) {
1201   VisitExpr(S);
1202   for (unsigned I = 0, E = S->numOfIterators(); I < E; ++I)
1203     VisitDecl(S->getIteratorDecl(I));
1204 }
1205 
1206 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
1207   VisitExpr(S);
1208 }
1209 
1210 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
1211   VisitExpr(S);
1212   VisitDecl(S->getMemberDecl());
1213   if (!Canonical)
1214     VisitNestedNameSpecifier(S->getQualifier());
1215   ID.AddBoolean(S->isArrow());
1216 }
1217 
1218 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
1219   VisitExpr(S);
1220   ID.AddBoolean(S->isFileScope());
1221 }
1222 
1223 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
1224   VisitExpr(S);
1225 }
1226 
1227 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
1228   VisitCastExpr(S);
1229   ID.AddInteger(S->getValueKind());
1230 }
1231 
1232 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
1233   VisitCastExpr(S);
1234   VisitType(S->getTypeAsWritten());
1235 }
1236 
1237 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
1238   VisitExplicitCastExpr(S);
1239 }
1240 
1241 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
1242   VisitExpr(S);
1243   ID.AddInteger(S->getOpcode());
1244 }
1245 
1246 void
1247 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
1248   VisitBinaryOperator(S);
1249 }
1250 
1251 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
1252   VisitExpr(S);
1253 }
1254 
1255 void StmtProfiler::VisitBinaryConditionalOperator(
1256     const BinaryConditionalOperator *S) {
1257   VisitExpr(S);
1258 }
1259 
1260 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
1261   VisitExpr(S);
1262   VisitDecl(S->getLabel());
1263 }
1264 
1265 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
1266   VisitExpr(S);
1267 }
1268 
1269 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
1270   VisitExpr(S);
1271 }
1272 
1273 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
1274   VisitExpr(S);
1275 }
1276 
1277 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
1278   VisitExpr(S);
1279 }
1280 
1281 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
1282   VisitExpr(S);
1283 }
1284 
1285 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
1286   VisitExpr(S);
1287 }
1288 
1289 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
1290   if (S->getSyntacticForm()) {
1291     VisitInitListExpr(S->getSyntacticForm());
1292     return;
1293   }
1294 
1295   VisitExpr(S);
1296 }
1297 
1298 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
1299   VisitExpr(S);
1300   ID.AddBoolean(S->usesGNUSyntax());
1301   for (const DesignatedInitExpr::Designator &D : S->designators()) {
1302     if (D.isFieldDesignator()) {
1303       ID.AddInteger(0);
1304       VisitName(D.getFieldName());
1305       continue;
1306     }
1307 
1308     if (D.isArrayDesignator()) {
1309       ID.AddInteger(1);
1310     } else {
1311       assert(D.isArrayRangeDesignator());
1312       ID.AddInteger(2);
1313     }
1314     ID.AddInteger(D.getFirstExprIndex());
1315   }
1316 }
1317 
1318 // Seems that if VisitInitListExpr() only works on the syntactic form of an
1319 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
1320 void StmtProfiler::VisitDesignatedInitUpdateExpr(
1321     const DesignatedInitUpdateExpr *S) {
1322   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
1323                    "initializer");
1324 }
1325 
1326 void StmtProfiler::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *S) {
1327   VisitExpr(S);
1328 }
1329 
1330 void StmtProfiler::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *S) {
1331   VisitExpr(S);
1332 }
1333 
1334 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
1335   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
1336 }
1337 
1338 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
1339   VisitExpr(S);
1340 }
1341 
1342 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
1343   VisitExpr(S);
1344   VisitName(&S->getAccessor());
1345 }
1346 
1347 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
1348   VisitExpr(S);
1349   VisitDecl(S->getBlockDecl());
1350 }
1351 
1352 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
1353   VisitExpr(S);
1354   for (const GenericSelectionExpr::ConstAssociation Assoc :
1355        S->associations()) {
1356     QualType T = Assoc.getType();
1357     if (T.isNull())
1358       ID.AddPointer(nullptr);
1359     else
1360       VisitType(T);
1361     VisitExpr(Assoc.getAssociationExpr());
1362   }
1363 }
1364 
1365 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
1366   VisitExpr(S);
1367   for (PseudoObjectExpr::const_semantics_iterator
1368          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
1369     // Normally, we would not profile the source expressions of OVEs.
1370     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
1371       Visit(OVE->getSourceExpr());
1372 }
1373 
1374 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
1375   VisitExpr(S);
1376   ID.AddInteger(S->getOp());
1377 }
1378 
1379 void StmtProfiler::VisitConceptSpecializationExpr(
1380                                            const ConceptSpecializationExpr *S) {
1381   VisitExpr(S);
1382   VisitDecl(S->getNamedConcept());
1383   for (const TemplateArgument &Arg : S->getTemplateArguments())
1384     VisitTemplateArgument(Arg);
1385 }
1386 
1387 void StmtProfiler::VisitRequiresExpr(const RequiresExpr *S) {
1388   VisitExpr(S);
1389   ID.AddInteger(S->getLocalParameters().size());
1390   for (ParmVarDecl *LocalParam : S->getLocalParameters())
1391     VisitDecl(LocalParam);
1392   ID.AddInteger(S->getRequirements().size());
1393   for (concepts::Requirement *Req : S->getRequirements()) {
1394     if (auto *TypeReq = dyn_cast<concepts::TypeRequirement>(Req)) {
1395       ID.AddInteger(concepts::Requirement::RK_Type);
1396       ID.AddBoolean(TypeReq->isSubstitutionFailure());
1397       if (!TypeReq->isSubstitutionFailure())
1398         VisitType(TypeReq->getType()->getType());
1399     } else if (auto *ExprReq = dyn_cast<concepts::ExprRequirement>(Req)) {
1400       ID.AddInteger(concepts::Requirement::RK_Compound);
1401       ID.AddBoolean(ExprReq->isExprSubstitutionFailure());
1402       if (!ExprReq->isExprSubstitutionFailure())
1403         Visit(ExprReq->getExpr());
1404       // C++2a [expr.prim.req.compound]p1 Example:
1405       //    [...] The compound-requirement in C1 requires that x++ is a valid
1406       //    expression. It is equivalent to the simple-requirement x++; [...]
1407       // We therefore do not profile isSimple() here.
1408       ID.AddBoolean(ExprReq->getNoexceptLoc().isValid());
1409       const concepts::ExprRequirement::ReturnTypeRequirement &RetReq =
1410           ExprReq->getReturnTypeRequirement();
1411       if (RetReq.isEmpty()) {
1412         ID.AddInteger(0);
1413       } else if (RetReq.isTypeConstraint()) {
1414         ID.AddInteger(1);
1415         Visit(RetReq.getTypeConstraint()->getImmediatelyDeclaredConstraint());
1416       } else {
1417         assert(RetReq.isSubstitutionFailure());
1418         ID.AddInteger(2);
1419       }
1420     } else {
1421       ID.AddInteger(concepts::Requirement::RK_Nested);
1422       auto *NestedReq = cast<concepts::NestedRequirement>(Req);
1423       ID.AddBoolean(NestedReq->isSubstitutionFailure());
1424       if (!NestedReq->isSubstitutionFailure())
1425         Visit(NestedReq->getConstraintExpr());
1426     }
1427   }
1428 }
1429 
1430 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
1431                                           UnaryOperatorKind &UnaryOp,
1432                                           BinaryOperatorKind &BinaryOp) {
1433   switch (S->getOperator()) {
1434   case OO_None:
1435   case OO_New:
1436   case OO_Delete:
1437   case OO_Array_New:
1438   case OO_Array_Delete:
1439   case OO_Arrow:
1440   case OO_Call:
1441   case OO_Conditional:
1442   case NUM_OVERLOADED_OPERATORS:
1443     llvm_unreachable("Invalid operator call kind");
1444 
1445   case OO_Plus:
1446     if (S->getNumArgs() == 1) {
1447       UnaryOp = UO_Plus;
1448       return Stmt::UnaryOperatorClass;
1449     }
1450 
1451     BinaryOp = BO_Add;
1452     return Stmt::BinaryOperatorClass;
1453 
1454   case OO_Minus:
1455     if (S->getNumArgs() == 1) {
1456       UnaryOp = UO_Minus;
1457       return Stmt::UnaryOperatorClass;
1458     }
1459 
1460     BinaryOp = BO_Sub;
1461     return Stmt::BinaryOperatorClass;
1462 
1463   case OO_Star:
1464     if (S->getNumArgs() == 1) {
1465       UnaryOp = UO_Deref;
1466       return Stmt::UnaryOperatorClass;
1467     }
1468 
1469     BinaryOp = BO_Mul;
1470     return Stmt::BinaryOperatorClass;
1471 
1472   case OO_Slash:
1473     BinaryOp = BO_Div;
1474     return Stmt::BinaryOperatorClass;
1475 
1476   case OO_Percent:
1477     BinaryOp = BO_Rem;
1478     return Stmt::BinaryOperatorClass;
1479 
1480   case OO_Caret:
1481     BinaryOp = BO_Xor;
1482     return Stmt::BinaryOperatorClass;
1483 
1484   case OO_Amp:
1485     if (S->getNumArgs() == 1) {
1486       UnaryOp = UO_AddrOf;
1487       return Stmt::UnaryOperatorClass;
1488     }
1489 
1490     BinaryOp = BO_And;
1491     return Stmt::BinaryOperatorClass;
1492 
1493   case OO_Pipe:
1494     BinaryOp = BO_Or;
1495     return Stmt::BinaryOperatorClass;
1496 
1497   case OO_Tilde:
1498     UnaryOp = UO_Not;
1499     return Stmt::UnaryOperatorClass;
1500 
1501   case OO_Exclaim:
1502     UnaryOp = UO_LNot;
1503     return Stmt::UnaryOperatorClass;
1504 
1505   case OO_Equal:
1506     BinaryOp = BO_Assign;
1507     return Stmt::BinaryOperatorClass;
1508 
1509   case OO_Less:
1510     BinaryOp = BO_LT;
1511     return Stmt::BinaryOperatorClass;
1512 
1513   case OO_Greater:
1514     BinaryOp = BO_GT;
1515     return Stmt::BinaryOperatorClass;
1516 
1517   case OO_PlusEqual:
1518     BinaryOp = BO_AddAssign;
1519     return Stmt::CompoundAssignOperatorClass;
1520 
1521   case OO_MinusEqual:
1522     BinaryOp = BO_SubAssign;
1523     return Stmt::CompoundAssignOperatorClass;
1524 
1525   case OO_StarEqual:
1526     BinaryOp = BO_MulAssign;
1527     return Stmt::CompoundAssignOperatorClass;
1528 
1529   case OO_SlashEqual:
1530     BinaryOp = BO_DivAssign;
1531     return Stmt::CompoundAssignOperatorClass;
1532 
1533   case OO_PercentEqual:
1534     BinaryOp = BO_RemAssign;
1535     return Stmt::CompoundAssignOperatorClass;
1536 
1537   case OO_CaretEqual:
1538     BinaryOp = BO_XorAssign;
1539     return Stmt::CompoundAssignOperatorClass;
1540 
1541   case OO_AmpEqual:
1542     BinaryOp = BO_AndAssign;
1543     return Stmt::CompoundAssignOperatorClass;
1544 
1545   case OO_PipeEqual:
1546     BinaryOp = BO_OrAssign;
1547     return Stmt::CompoundAssignOperatorClass;
1548 
1549   case OO_LessLess:
1550     BinaryOp = BO_Shl;
1551     return Stmt::BinaryOperatorClass;
1552 
1553   case OO_GreaterGreater:
1554     BinaryOp = BO_Shr;
1555     return Stmt::BinaryOperatorClass;
1556 
1557   case OO_LessLessEqual:
1558     BinaryOp = BO_ShlAssign;
1559     return Stmt::CompoundAssignOperatorClass;
1560 
1561   case OO_GreaterGreaterEqual:
1562     BinaryOp = BO_ShrAssign;
1563     return Stmt::CompoundAssignOperatorClass;
1564 
1565   case OO_EqualEqual:
1566     BinaryOp = BO_EQ;
1567     return Stmt::BinaryOperatorClass;
1568 
1569   case OO_ExclaimEqual:
1570     BinaryOp = BO_NE;
1571     return Stmt::BinaryOperatorClass;
1572 
1573   case OO_LessEqual:
1574     BinaryOp = BO_LE;
1575     return Stmt::BinaryOperatorClass;
1576 
1577   case OO_GreaterEqual:
1578     BinaryOp = BO_GE;
1579     return Stmt::BinaryOperatorClass;
1580 
1581   case OO_Spaceship:
1582     BinaryOp = BO_Cmp;
1583     return Stmt::BinaryOperatorClass;
1584 
1585   case OO_AmpAmp:
1586     BinaryOp = BO_LAnd;
1587     return Stmt::BinaryOperatorClass;
1588 
1589   case OO_PipePipe:
1590     BinaryOp = BO_LOr;
1591     return Stmt::BinaryOperatorClass;
1592 
1593   case OO_PlusPlus:
1594     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1595                                   : UO_PostInc;
1596     return Stmt::UnaryOperatorClass;
1597 
1598   case OO_MinusMinus:
1599     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1600                                   : UO_PostDec;
1601     return Stmt::UnaryOperatorClass;
1602 
1603   case OO_Comma:
1604     BinaryOp = BO_Comma;
1605     return Stmt::BinaryOperatorClass;
1606 
1607   case OO_ArrowStar:
1608     BinaryOp = BO_PtrMemI;
1609     return Stmt::BinaryOperatorClass;
1610 
1611   case OO_Subscript:
1612     return Stmt::ArraySubscriptExprClass;
1613 
1614   case OO_Coawait:
1615     UnaryOp = UO_Coawait;
1616     return Stmt::UnaryOperatorClass;
1617   }
1618 
1619   llvm_unreachable("Invalid overloaded operator expression");
1620 }
1621 
1622 #if defined(_MSC_VER) && !defined(__clang__)
1623 #if _MSC_VER == 1911
1624 // Work around https://developercommunity.visualstudio.com/content/problem/84002/clang-cl-when-built-with-vc-2017-crashes-cause-vc.html
1625 // MSVC 2017 update 3 miscompiles this function, and a clang built with it
1626 // will crash in stage 2 of a bootstrap build.
1627 #pragma optimize("", off)
1628 #endif
1629 #endif
1630 
1631 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1632   if (S->isTypeDependent()) {
1633     // Type-dependent operator calls are profiled like their underlying
1634     // syntactic operator.
1635     //
1636     // An operator call to operator-> is always implicit, so just skip it. The
1637     // enclosing MemberExpr will profile the actual member access.
1638     if (S->getOperator() == OO_Arrow)
1639       return Visit(S->getArg(0));
1640 
1641     UnaryOperatorKind UnaryOp = UO_Extension;
1642     BinaryOperatorKind BinaryOp = BO_Comma;
1643     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1644 
1645     ID.AddInteger(SC);
1646     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1647       Visit(S->getArg(I));
1648     if (SC == Stmt::UnaryOperatorClass)
1649       ID.AddInteger(UnaryOp);
1650     else if (SC == Stmt::BinaryOperatorClass ||
1651              SC == Stmt::CompoundAssignOperatorClass)
1652       ID.AddInteger(BinaryOp);
1653     else
1654       assert(SC == Stmt::ArraySubscriptExprClass);
1655 
1656     return;
1657   }
1658 
1659   VisitCallExpr(S);
1660   ID.AddInteger(S->getOperator());
1661 }
1662 
1663 void StmtProfiler::VisitCXXRewrittenBinaryOperator(
1664     const CXXRewrittenBinaryOperator *S) {
1665   // If a rewritten operator were ever to be type-dependent, we should profile
1666   // it following its syntactic operator.
1667   assert(!S->isTypeDependent() &&
1668          "resolved rewritten operator should never be type-dependent");
1669   ID.AddBoolean(S->isReversed());
1670   VisitExpr(S->getSemanticForm());
1671 }
1672 
1673 #if defined(_MSC_VER) && !defined(__clang__)
1674 #if _MSC_VER == 1911
1675 #pragma optimize("", on)
1676 #endif
1677 #endif
1678 
1679 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1680   VisitCallExpr(S);
1681 }
1682 
1683 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1684   VisitCallExpr(S);
1685 }
1686 
1687 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1688   VisitExpr(S);
1689 }
1690 
1691 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1692   VisitExplicitCastExpr(S);
1693 }
1694 
1695 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1696   VisitCXXNamedCastExpr(S);
1697 }
1698 
1699 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1700   VisitCXXNamedCastExpr(S);
1701 }
1702 
1703 void
1704 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1705   VisitCXXNamedCastExpr(S);
1706 }
1707 
1708 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1709   VisitCXXNamedCastExpr(S);
1710 }
1711 
1712 void StmtProfiler::VisitBuiltinBitCastExpr(const BuiltinBitCastExpr *S) {
1713   VisitExpr(S);
1714   VisitType(S->getTypeInfoAsWritten()->getType());
1715 }
1716 
1717 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1718   VisitCallExpr(S);
1719 }
1720 
1721 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1722   VisitExpr(S);
1723   ID.AddBoolean(S->getValue());
1724 }
1725 
1726 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1727   VisitExpr(S);
1728 }
1729 
1730 void StmtProfiler::VisitCXXStdInitializerListExpr(
1731     const CXXStdInitializerListExpr *S) {
1732   VisitExpr(S);
1733 }
1734 
1735 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1736   VisitExpr(S);
1737   if (S->isTypeOperand())
1738     VisitType(S->getTypeOperandSourceInfo()->getType());
1739 }
1740 
1741 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1742   VisitExpr(S);
1743   if (S->isTypeOperand())
1744     VisitType(S->getTypeOperandSourceInfo()->getType());
1745 }
1746 
1747 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1748   VisitExpr(S);
1749   VisitDecl(S->getPropertyDecl());
1750 }
1751 
1752 void StmtProfiler::VisitMSPropertySubscriptExpr(
1753     const MSPropertySubscriptExpr *S) {
1754   VisitExpr(S);
1755 }
1756 
1757 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1758   VisitExpr(S);
1759   ID.AddBoolean(S->isImplicit());
1760 }
1761 
1762 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1763   VisitExpr(S);
1764 }
1765 
1766 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1767   VisitExpr(S);
1768   VisitDecl(S->getParam());
1769 }
1770 
1771 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1772   VisitExpr(S);
1773   VisitDecl(S->getField());
1774 }
1775 
1776 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1777   VisitExpr(S);
1778   VisitDecl(
1779          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1780 }
1781 
1782 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1783   VisitExpr(S);
1784   VisitDecl(S->getConstructor());
1785   ID.AddBoolean(S->isElidable());
1786 }
1787 
1788 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
1789     const CXXInheritedCtorInitExpr *S) {
1790   VisitExpr(S);
1791   VisitDecl(S->getConstructor());
1792 }
1793 
1794 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1795   VisitExplicitCastExpr(S);
1796 }
1797 
1798 void
1799 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1800   VisitCXXConstructExpr(S);
1801 }
1802 
1803 void
1804 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1805   VisitExpr(S);
1806   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1807                                  CEnd = S->explicit_capture_end();
1808        C != CEnd; ++C) {
1809     if (C->capturesVLAType())
1810       continue;
1811 
1812     ID.AddInteger(C->getCaptureKind());
1813     switch (C->getCaptureKind()) {
1814     case LCK_StarThis:
1815     case LCK_This:
1816       break;
1817     case LCK_ByRef:
1818     case LCK_ByCopy:
1819       VisitDecl(C->getCapturedVar());
1820       ID.AddBoolean(C->isPackExpansion());
1821       break;
1822     case LCK_VLAType:
1823       llvm_unreachable("VLA type in explicit captures.");
1824     }
1825   }
1826   // Note: If we actually needed to be able to match lambda
1827   // expressions, we would have to consider parameters and return type
1828   // here, among other things.
1829   VisitStmt(S->getBody());
1830 }
1831 
1832 void
1833 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1834   VisitExpr(S);
1835 }
1836 
1837 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1838   VisitExpr(S);
1839   ID.AddBoolean(S->isGlobalDelete());
1840   ID.AddBoolean(S->isArrayForm());
1841   VisitDecl(S->getOperatorDelete());
1842 }
1843 
1844 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1845   VisitExpr(S);
1846   VisitType(S->getAllocatedType());
1847   VisitDecl(S->getOperatorNew());
1848   VisitDecl(S->getOperatorDelete());
1849   ID.AddBoolean(S->isArray());
1850   ID.AddInteger(S->getNumPlacementArgs());
1851   ID.AddBoolean(S->isGlobalNew());
1852   ID.AddBoolean(S->isParenTypeId());
1853   ID.AddInteger(S->getInitializationStyle());
1854 }
1855 
1856 void
1857 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1858   VisitExpr(S);
1859   ID.AddBoolean(S->isArrow());
1860   VisitNestedNameSpecifier(S->getQualifier());
1861   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1862   if (S->getScopeTypeInfo())
1863     VisitType(S->getScopeTypeInfo()->getType());
1864   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1865   if (S->getDestroyedTypeInfo())
1866     VisitType(S->getDestroyedType());
1867   else
1868     VisitIdentifierInfo(S->getDestroyedTypeIdentifier());
1869 }
1870 
1871 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1872   VisitExpr(S);
1873   VisitNestedNameSpecifier(S->getQualifier());
1874   VisitName(S->getName(), /*TreatAsDecl*/ true);
1875   ID.AddBoolean(S->hasExplicitTemplateArgs());
1876   if (S->hasExplicitTemplateArgs())
1877     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1878 }
1879 
1880 void
1881 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1882   VisitOverloadExpr(S);
1883 }
1884 
1885 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1886   VisitExpr(S);
1887   ID.AddInteger(S->getTrait());
1888   ID.AddInteger(S->getNumArgs());
1889   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1890     VisitType(S->getArg(I)->getType());
1891 }
1892 
1893 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1894   VisitExpr(S);
1895   ID.AddInteger(S->getTrait());
1896   VisitType(S->getQueriedType());
1897 }
1898 
1899 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1900   VisitExpr(S);
1901   ID.AddInteger(S->getTrait());
1902   VisitExpr(S->getQueriedExpression());
1903 }
1904 
1905 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1906     const DependentScopeDeclRefExpr *S) {
1907   VisitExpr(S);
1908   VisitName(S->getDeclName());
1909   VisitNestedNameSpecifier(S->getQualifier());
1910   ID.AddBoolean(S->hasExplicitTemplateArgs());
1911   if (S->hasExplicitTemplateArgs())
1912     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1913 }
1914 
1915 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1916   VisitExpr(S);
1917 }
1918 
1919 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1920     const CXXUnresolvedConstructExpr *S) {
1921   VisitExpr(S);
1922   VisitType(S->getTypeAsWritten());
1923   ID.AddInteger(S->isListInitialization());
1924 }
1925 
1926 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1927     const CXXDependentScopeMemberExpr *S) {
1928   ID.AddBoolean(S->isImplicitAccess());
1929   if (!S->isImplicitAccess()) {
1930     VisitExpr(S);
1931     ID.AddBoolean(S->isArrow());
1932   }
1933   VisitNestedNameSpecifier(S->getQualifier());
1934   VisitName(S->getMember());
1935   ID.AddBoolean(S->hasExplicitTemplateArgs());
1936   if (S->hasExplicitTemplateArgs())
1937     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1938 }
1939 
1940 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1941   ID.AddBoolean(S->isImplicitAccess());
1942   if (!S->isImplicitAccess()) {
1943     VisitExpr(S);
1944     ID.AddBoolean(S->isArrow());
1945   }
1946   VisitNestedNameSpecifier(S->getQualifier());
1947   VisitName(S->getMemberName());
1948   ID.AddBoolean(S->hasExplicitTemplateArgs());
1949   if (S->hasExplicitTemplateArgs())
1950     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1951 }
1952 
1953 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1954   VisitExpr(S);
1955 }
1956 
1957 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1958   VisitExpr(S);
1959 }
1960 
1961 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1962   VisitExpr(S);
1963   VisitDecl(S->getPack());
1964   if (S->isPartiallySubstituted()) {
1965     auto Args = S->getPartialArguments();
1966     ID.AddInteger(Args.size());
1967     for (const auto &TA : Args)
1968       VisitTemplateArgument(TA);
1969   } else {
1970     ID.AddInteger(0);
1971   }
1972 }
1973 
1974 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1975     const SubstNonTypeTemplateParmPackExpr *S) {
1976   VisitExpr(S);
1977   VisitDecl(S->getParameterPack());
1978   VisitTemplateArgument(S->getArgumentPack());
1979 }
1980 
1981 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
1982     const SubstNonTypeTemplateParmExpr *E) {
1983   // Profile exactly as the replacement expression.
1984   Visit(E->getReplacement());
1985 }
1986 
1987 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
1988   VisitExpr(S);
1989   VisitDecl(S->getParameterPack());
1990   ID.AddInteger(S->getNumExpansions());
1991   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
1992     VisitDecl(*I);
1993 }
1994 
1995 void StmtProfiler::VisitMaterializeTemporaryExpr(
1996                                            const MaterializeTemporaryExpr *S) {
1997   VisitExpr(S);
1998 }
1999 
2000 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
2001   VisitExpr(S);
2002   ID.AddInteger(S->getOperator());
2003 }
2004 
2005 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
2006   VisitStmt(S);
2007 }
2008 
2009 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
2010   VisitStmt(S);
2011 }
2012 
2013 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
2014   VisitExpr(S);
2015 }
2016 
2017 void StmtProfiler::VisitDependentCoawaitExpr(const DependentCoawaitExpr *S) {
2018   VisitExpr(S);
2019 }
2020 
2021 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
2022   VisitExpr(S);
2023 }
2024 
2025 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
2026   VisitExpr(E);
2027 }
2028 
2029 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
2030   VisitExpr(E);
2031 }
2032 
2033 void StmtProfiler::VisitSourceLocExpr(const SourceLocExpr *E) {
2034   VisitExpr(E);
2035 }
2036 
2037 void StmtProfiler::VisitRecoveryExpr(const RecoveryExpr *E) { VisitExpr(E); }
2038 
2039 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
2040   VisitExpr(S);
2041 }
2042 
2043 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
2044   VisitExpr(E);
2045 }
2046 
2047 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
2048   VisitExpr(E);
2049 }
2050 
2051 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
2052   VisitExpr(E);
2053 }
2054 
2055 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
2056   VisitExpr(S);
2057   VisitType(S->getEncodedType());
2058 }
2059 
2060 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
2061   VisitExpr(S);
2062   VisitName(S->getSelector());
2063 }
2064 
2065 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
2066   VisitExpr(S);
2067   VisitDecl(S->getProtocol());
2068 }
2069 
2070 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
2071   VisitExpr(S);
2072   VisitDecl(S->getDecl());
2073   ID.AddBoolean(S->isArrow());
2074   ID.AddBoolean(S->isFreeIvar());
2075 }
2076 
2077 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
2078   VisitExpr(S);
2079   if (S->isImplicitProperty()) {
2080     VisitDecl(S->getImplicitPropertyGetter());
2081     VisitDecl(S->getImplicitPropertySetter());
2082   } else {
2083     VisitDecl(S->getExplicitProperty());
2084   }
2085   if (S->isSuperReceiver()) {
2086     ID.AddBoolean(S->isSuperReceiver());
2087     VisitType(S->getSuperReceiverType());
2088   }
2089 }
2090 
2091 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
2092   VisitExpr(S);
2093   VisitDecl(S->getAtIndexMethodDecl());
2094   VisitDecl(S->setAtIndexMethodDecl());
2095 }
2096 
2097 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
2098   VisitExpr(S);
2099   VisitName(S->getSelector());
2100   VisitDecl(S->getMethodDecl());
2101 }
2102 
2103 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
2104   VisitExpr(S);
2105   ID.AddBoolean(S->isArrow());
2106 }
2107 
2108 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
2109   VisitExpr(S);
2110   ID.AddBoolean(S->getValue());
2111 }
2112 
2113 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
2114     const ObjCIndirectCopyRestoreExpr *S) {
2115   VisitExpr(S);
2116   ID.AddBoolean(S->shouldCopy());
2117 }
2118 
2119 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
2120   VisitExplicitCastExpr(S);
2121   ID.AddBoolean(S->getBridgeKind());
2122 }
2123 
2124 void StmtProfiler::VisitObjCAvailabilityCheckExpr(
2125     const ObjCAvailabilityCheckExpr *S) {
2126   VisitExpr(S);
2127 }
2128 
2129 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
2130                                           unsigned NumArgs) {
2131   ID.AddInteger(NumArgs);
2132   for (unsigned I = 0; I != NumArgs; ++I)
2133     VisitTemplateArgument(Args[I].getArgument());
2134 }
2135 
2136 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
2137   // Mostly repetitive with TemplateArgument::Profile!
2138   ID.AddInteger(Arg.getKind());
2139   switch (Arg.getKind()) {
2140   case TemplateArgument::Null:
2141     break;
2142 
2143   case TemplateArgument::Type:
2144     VisitType(Arg.getAsType());
2145     break;
2146 
2147   case TemplateArgument::Template:
2148   case TemplateArgument::TemplateExpansion:
2149     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
2150     break;
2151 
2152   case TemplateArgument::Declaration:
2153     VisitDecl(Arg.getAsDecl());
2154     break;
2155 
2156   case TemplateArgument::NullPtr:
2157     VisitType(Arg.getNullPtrType());
2158     break;
2159 
2160   case TemplateArgument::Integral:
2161     Arg.getAsIntegral().Profile(ID);
2162     VisitType(Arg.getIntegralType());
2163     break;
2164 
2165   case TemplateArgument::Expression:
2166     Visit(Arg.getAsExpr());
2167     break;
2168 
2169   case TemplateArgument::Pack:
2170     for (const auto &P : Arg.pack_elements())
2171       VisitTemplateArgument(P);
2172     break;
2173   }
2174 }
2175 
2176 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
2177                    bool Canonical) const {
2178   StmtProfilerWithPointers Profiler(ID, Context, Canonical);
2179   Profiler.Visit(this);
2180 }
2181 
2182 void Stmt::ProcessODRHash(llvm::FoldingSetNodeID &ID,
2183                           class ODRHash &Hash) const {
2184   StmtProfilerWithoutPointers Profiler(ID, Hash);
2185   Profiler.Visit(this);
2186 }
2187