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