1 //===---- StmtProfile.cpp - Profile implementation for Stmt ASTs ----------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements the Stmt::Profile method, which builds a unique bit
10 // representation that identifies a statement/expression.
11 //
12 //===----------------------------------------------------------------------===//
13 #include "clang/AST/ASTContext.h"
14 #include "clang/AST/DeclCXX.h"
15 #include "clang/AST/DeclObjC.h"
16 #include "clang/AST/DeclTemplate.h"
17 #include "clang/AST/Expr.h"
18 #include "clang/AST/ExprCXX.h"
19 #include "clang/AST/ExprObjC.h"
20 #include "clang/AST/ExprOpenMP.h"
21 #include "clang/AST/ODRHash.h"
22 #include "clang/AST/OpenMPClause.h"
23 #include "clang/AST/StmtVisitor.h"
24 #include "llvm/ADT/FoldingSet.h"
25 using namespace clang;
26 
27 namespace {
28   class StmtProfiler : public ConstStmtVisitor<StmtProfiler> {
29   protected:
30     llvm::FoldingSetNodeID &ID;
31     bool Canonical;
32 
33   public:
34     StmtProfiler(llvm::FoldingSetNodeID &ID, bool Canonical)
35         : ID(ID), Canonical(Canonical) {}
36 
37     virtual ~StmtProfiler() {}
38 
39     void VisitStmt(const Stmt *S);
40 
41     virtual void HandleStmtClass(Stmt::StmtClass SC) = 0;
42 
43 #define STMT(Node, Base) void Visit##Node(const Node *S);
44 #include "clang/AST/StmtNodes.inc"
45 
46     /// Visit a declaration that is referenced within an expression
47     /// or statement.
48     virtual void VisitDecl(const Decl *D) = 0;
49 
50     /// Visit a type that is referenced within an expression or
51     /// statement.
52     virtual void VisitType(QualType T) = 0;
53 
54     /// Visit a name that occurs within an expression or statement.
55     virtual void VisitName(DeclarationName Name, bool TreatAsDecl = false) = 0;
56 
57     /// Visit identifiers that are not in Decl's or Type's.
58     virtual void VisitIdentifierInfo(IdentifierInfo *II) = 0;
59 
60     /// Visit a nested-name-specifier that occurs within an expression
61     /// or statement.
62     virtual void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) = 0;
63 
64     /// Visit a template name that occurs within an expression or
65     /// statement.
66     virtual void VisitTemplateName(TemplateName Name) = 0;
67 
68     /// Visit template arguments that occur within an expression or
69     /// statement.
70     void VisitTemplateArguments(const TemplateArgumentLoc *Args,
71                                 unsigned NumArgs);
72 
73     /// Visit a single template argument.
74     void VisitTemplateArgument(const TemplateArgument &Arg);
75   };
76 
77   class StmtProfilerWithPointers : public StmtProfiler {
78     const ASTContext &Context;
79 
80   public:
81     StmtProfilerWithPointers(llvm::FoldingSetNodeID &ID,
82                              const ASTContext &Context, bool Canonical)
83         : StmtProfiler(ID, Canonical), Context(Context) {}
84   private:
85     void HandleStmtClass(Stmt::StmtClass SC) override {
86       ID.AddInteger(SC);
87     }
88 
89     void VisitDecl(const Decl *D) override {
90       ID.AddInteger(D ? D->getKind() : 0);
91 
92       if (Canonical && D) {
93         if (const NonTypeTemplateParmDecl *NTTP =
94                 dyn_cast<NonTypeTemplateParmDecl>(D)) {
95           ID.AddInteger(NTTP->getDepth());
96           ID.AddInteger(NTTP->getIndex());
97           ID.AddBoolean(NTTP->isParameterPack());
98           VisitType(NTTP->getType());
99           return;
100         }
101 
102         if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
103           // The Itanium C++ ABI uses the type, scope depth, and scope
104           // index of a parameter when mangling expressions that involve
105           // function parameters, so we will use the parameter's type for
106           // establishing function parameter identity. That way, our
107           // definition of "equivalent" (per C++ [temp.over.link]) is at
108           // least as strong as the definition of "equivalent" used for
109           // name mangling.
110           VisitType(Parm->getType());
111           ID.AddInteger(Parm->getFunctionScopeDepth());
112           ID.AddInteger(Parm->getFunctionScopeIndex());
113           return;
114         }
115 
116         if (const TemplateTypeParmDecl *TTP =
117                 dyn_cast<TemplateTypeParmDecl>(D)) {
118           ID.AddInteger(TTP->getDepth());
119           ID.AddInteger(TTP->getIndex());
120           ID.AddBoolean(TTP->isParameterPack());
121           return;
122         }
123 
124         if (const TemplateTemplateParmDecl *TTP =
125                 dyn_cast<TemplateTemplateParmDecl>(D)) {
126           ID.AddInteger(TTP->getDepth());
127           ID.AddInteger(TTP->getIndex());
128           ID.AddBoolean(TTP->isParameterPack());
129           return;
130         }
131       }
132 
133       ID.AddPointer(D ? D->getCanonicalDecl() : nullptr);
134     }
135 
136     void VisitType(QualType T) override {
137       if (Canonical && !T.isNull())
138         T = Context.getCanonicalType(T);
139 
140       ID.AddPointer(T.getAsOpaquePtr());
141     }
142 
143     void VisitName(DeclarationName Name, bool /*TreatAsDecl*/) override {
144       ID.AddPointer(Name.getAsOpaquePtr());
145     }
146 
147     void VisitIdentifierInfo(IdentifierInfo *II) override {
148       ID.AddPointer(II);
149     }
150 
151     void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) override {
152       if (Canonical)
153         NNS = Context.getCanonicalNestedNameSpecifier(NNS);
154       ID.AddPointer(NNS);
155     }
156 
157     void VisitTemplateName(TemplateName Name) override {
158       if (Canonical)
159         Name = Context.getCanonicalTemplateName(Name);
160 
161       Name.Profile(ID);
162     }
163   };
164 
165   class StmtProfilerWithoutPointers : public StmtProfiler {
166     ODRHash &Hash;
167   public:
168     StmtProfilerWithoutPointers(llvm::FoldingSetNodeID &ID, ODRHash &Hash)
169         : StmtProfiler(ID, false), Hash(Hash) {}
170 
171   private:
172     void HandleStmtClass(Stmt::StmtClass SC) override {
173       if (SC == Stmt::UnresolvedLookupExprClass) {
174         // Pretend that the name looked up is a Decl due to how templates
175         // handle some Decl lookups.
176         ID.AddInteger(Stmt::DeclRefExprClass);
177       } else {
178         ID.AddInteger(SC);
179       }
180     }
181 
182     void VisitType(QualType T) override {
183       Hash.AddQualType(T);
184     }
185 
186     void VisitName(DeclarationName Name, bool TreatAsDecl) override {
187       if (TreatAsDecl) {
188         // A Decl can be null, so each Decl is preceded by a boolean to
189         // store its nullness.  Add a boolean here to match.
190         ID.AddBoolean(true);
191       }
192       Hash.AddDeclarationName(Name, TreatAsDecl);
193     }
194     void VisitIdentifierInfo(IdentifierInfo *II) override {
195       ID.AddBoolean(II);
196       if (II) {
197         Hash.AddIdentifierInfo(II);
198       }
199     }
200     void VisitDecl(const Decl *D) override {
201       ID.AddBoolean(D);
202       if (D) {
203         Hash.AddDecl(D);
204       }
205     }
206     void VisitTemplateName(TemplateName Name) override {
207       Hash.AddTemplateName(Name);
208     }
209     void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) override {
210       ID.AddBoolean(NNS);
211       if (NNS) {
212         Hash.AddNestedNameSpecifier(NNS);
213       }
214     }
215   };
216 }
217 
218 void StmtProfiler::VisitStmt(const Stmt *S) {
219   assert(S && "Requires non-null Stmt pointer");
220 
221   HandleStmtClass(S->getStmtClass());
222 
223   for (const Stmt *SubStmt : S->children()) {
224     if (SubStmt)
225       Visit(SubStmt);
226     else
227       ID.AddInteger(0);
228   }
229 }
230 
231 void StmtProfiler::VisitDeclStmt(const DeclStmt *S) {
232   VisitStmt(S);
233   for (const auto *D : S->decls())
234     VisitDecl(D);
235 }
236 
237 void StmtProfiler::VisitNullStmt(const NullStmt *S) {
238   VisitStmt(S);
239 }
240 
241 void StmtProfiler::VisitCompoundStmt(const CompoundStmt *S) {
242   VisitStmt(S);
243 }
244 
245 void StmtProfiler::VisitCaseStmt(const CaseStmt *S) {
246   VisitStmt(S);
247 }
248 
249 void StmtProfiler::VisitDefaultStmt(const DefaultStmt *S) {
250   VisitStmt(S);
251 }
252 
253 void StmtProfiler::VisitLabelStmt(const LabelStmt *S) {
254   VisitStmt(S);
255   VisitDecl(S->getDecl());
256 }
257 
258 void StmtProfiler::VisitAttributedStmt(const AttributedStmt *S) {
259   VisitStmt(S);
260   // TODO: maybe visit attributes?
261 }
262 
263 void StmtProfiler::VisitIfStmt(const IfStmt *S) {
264   VisitStmt(S);
265   VisitDecl(S->getConditionVariable());
266 }
267 
268 void StmtProfiler::VisitSwitchStmt(const SwitchStmt *S) {
269   VisitStmt(S);
270   VisitDecl(S->getConditionVariable());
271 }
272 
273 void StmtProfiler::VisitWhileStmt(const WhileStmt *S) {
274   VisitStmt(S);
275   VisitDecl(S->getConditionVariable());
276 }
277 
278 void StmtProfiler::VisitDoStmt(const DoStmt *S) {
279   VisitStmt(S);
280 }
281 
282 void StmtProfiler::VisitForStmt(const ForStmt *S) {
283   VisitStmt(S);
284 }
285 
286 void StmtProfiler::VisitGotoStmt(const GotoStmt *S) {
287   VisitStmt(S);
288   VisitDecl(S->getLabel());
289 }
290 
291 void StmtProfiler::VisitIndirectGotoStmt(const IndirectGotoStmt *S) {
292   VisitStmt(S);
293 }
294 
295 void StmtProfiler::VisitContinueStmt(const ContinueStmt *S) {
296   VisitStmt(S);
297 }
298 
299 void StmtProfiler::VisitBreakStmt(const BreakStmt *S) {
300   VisitStmt(S);
301 }
302 
303 void StmtProfiler::VisitReturnStmt(const ReturnStmt *S) {
304   VisitStmt(S);
305 }
306 
307 void StmtProfiler::VisitGCCAsmStmt(const GCCAsmStmt *S) {
308   VisitStmt(S);
309   ID.AddBoolean(S->isVolatile());
310   ID.AddBoolean(S->isSimple());
311   VisitStringLiteral(S->getAsmString());
312   ID.AddInteger(S->getNumOutputs());
313   for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
314     ID.AddString(S->getOutputName(I));
315     VisitStringLiteral(S->getOutputConstraintLiteral(I));
316   }
317   ID.AddInteger(S->getNumInputs());
318   for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
319     ID.AddString(S->getInputName(I));
320     VisitStringLiteral(S->getInputConstraintLiteral(I));
321   }
322   ID.AddInteger(S->getNumClobbers());
323   for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
324     VisitStringLiteral(S->getClobberStringLiteral(I));
325   ID.AddInteger(S->getNumLabels());
326   for (auto *L : S->labels())
327     VisitDecl(L->getLabel());
328 }
329 
330 void StmtProfiler::VisitMSAsmStmt(const MSAsmStmt *S) {
331   // FIXME: Implement MS style inline asm statement profiler.
332   VisitStmt(S);
333 }
334 
335 void StmtProfiler::VisitCXXCatchStmt(const CXXCatchStmt *S) {
336   VisitStmt(S);
337   VisitType(S->getCaughtType());
338 }
339 
340 void StmtProfiler::VisitCXXTryStmt(const CXXTryStmt *S) {
341   VisitStmt(S);
342 }
343 
344 void StmtProfiler::VisitCXXForRangeStmt(const CXXForRangeStmt *S) {
345   VisitStmt(S);
346 }
347 
348 void StmtProfiler::VisitMSDependentExistsStmt(const MSDependentExistsStmt *S) {
349   VisitStmt(S);
350   ID.AddBoolean(S->isIfExists());
351   VisitNestedNameSpecifier(S->getQualifierLoc().getNestedNameSpecifier());
352   VisitName(S->getNameInfo().getName());
353 }
354 
355 void StmtProfiler::VisitSEHTryStmt(const SEHTryStmt *S) {
356   VisitStmt(S);
357 }
358 
359 void StmtProfiler::VisitSEHFinallyStmt(const SEHFinallyStmt *S) {
360   VisitStmt(S);
361 }
362 
363 void StmtProfiler::VisitSEHExceptStmt(const SEHExceptStmt *S) {
364   VisitStmt(S);
365 }
366 
367 void StmtProfiler::VisitSEHLeaveStmt(const SEHLeaveStmt *S) {
368   VisitStmt(S);
369 }
370 
371 void StmtProfiler::VisitCapturedStmt(const CapturedStmt *S) {
372   VisitStmt(S);
373 }
374 
375 void StmtProfiler::VisitObjCForCollectionStmt(const ObjCForCollectionStmt *S) {
376   VisitStmt(S);
377 }
378 
379 void StmtProfiler::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *S) {
380   VisitStmt(S);
381   ID.AddBoolean(S->hasEllipsis());
382   if (S->getCatchParamDecl())
383     VisitType(S->getCatchParamDecl()->getType());
384 }
385 
386 void StmtProfiler::VisitObjCAtFinallyStmt(const ObjCAtFinallyStmt *S) {
387   VisitStmt(S);
388 }
389 
390 void StmtProfiler::VisitObjCAtTryStmt(const ObjCAtTryStmt *S) {
391   VisitStmt(S);
392 }
393 
394 void
395 StmtProfiler::VisitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt *S) {
396   VisitStmt(S);
397 }
398 
399 void StmtProfiler::VisitObjCAtThrowStmt(const ObjCAtThrowStmt *S) {
400   VisitStmt(S);
401 }
402 
403 void
404 StmtProfiler::VisitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt *S) {
405   VisitStmt(S);
406 }
407 
408 namespace {
409 class OMPClauseProfiler : public ConstOMPClauseVisitor<OMPClauseProfiler> {
410   StmtProfiler *Profiler;
411   /// Process clauses with list of variables.
412   template <typename T>
413   void VisitOMPClauseList(T *Node);
414 
415 public:
416   OMPClauseProfiler(StmtProfiler *P) : Profiler(P) { }
417 #define OMP_CLAUSE_CLASS(Enum, Str, Class) void Visit##Class(const Class *C);
418 #include "llvm/Frontend/OpenMP/OMPKinds.def"
419   void VistOMPClauseWithPreInit(const OMPClauseWithPreInit *C);
420   void VistOMPClauseWithPostUpdate(const OMPClauseWithPostUpdate *C);
421 };
422 
423 void OMPClauseProfiler::VistOMPClauseWithPreInit(
424     const OMPClauseWithPreInit *C) {
425   if (auto *S = C->getPreInitStmt())
426     Profiler->VisitStmt(S);
427 }
428 
429 void OMPClauseProfiler::VistOMPClauseWithPostUpdate(
430     const OMPClauseWithPostUpdate *C) {
431   VistOMPClauseWithPreInit(C);
432   if (auto *E = C->getPostUpdateExpr())
433     Profiler->VisitStmt(E);
434 }
435 
436 void OMPClauseProfiler::VisitOMPIfClause(const OMPIfClause *C) {
437   VistOMPClauseWithPreInit(C);
438   if (C->getCondition())
439     Profiler->VisitStmt(C->getCondition());
440 }
441 
442 void OMPClauseProfiler::VisitOMPFinalClause(const OMPFinalClause *C) {
443   VistOMPClauseWithPreInit(C);
444   if (C->getCondition())
445     Profiler->VisitStmt(C->getCondition());
446 }
447 
448 void OMPClauseProfiler::VisitOMPNumThreadsClause(const OMPNumThreadsClause *C) {
449   VistOMPClauseWithPreInit(C);
450   if (C->getNumThreads())
451     Profiler->VisitStmt(C->getNumThreads());
452 }
453 
454 void OMPClauseProfiler::VisitOMPSafelenClause(const OMPSafelenClause *C) {
455   if (C->getSafelen())
456     Profiler->VisitStmt(C->getSafelen());
457 }
458 
459 void OMPClauseProfiler::VisitOMPSimdlenClause(const OMPSimdlenClause *C) {
460   if (C->getSimdlen())
461     Profiler->VisitStmt(C->getSimdlen());
462 }
463 
464 void OMPClauseProfiler::VisitOMPAllocatorClause(const OMPAllocatorClause *C) {
465   if (C->getAllocator())
466     Profiler->VisitStmt(C->getAllocator());
467 }
468 
469 void OMPClauseProfiler::VisitOMPCollapseClause(const OMPCollapseClause *C) {
470   if (C->getNumForLoops())
471     Profiler->VisitStmt(C->getNumForLoops());
472 }
473 
474 void OMPClauseProfiler::VisitOMPDetachClause(const OMPDetachClause *C) {
475   if (Expr *Evt = C->getEventHandler())
476     Profiler->VisitStmt(Evt);
477 }
478 
479 void OMPClauseProfiler::VisitOMPDefaultClause(const OMPDefaultClause *C) { }
480 
481 void OMPClauseProfiler::VisitOMPProcBindClause(const OMPProcBindClause *C) { }
482 
483 void OMPClauseProfiler::VisitOMPUnifiedAddressClause(
484     const OMPUnifiedAddressClause *C) {}
485 
486 void OMPClauseProfiler::VisitOMPUnifiedSharedMemoryClause(
487     const OMPUnifiedSharedMemoryClause *C) {}
488 
489 void OMPClauseProfiler::VisitOMPReverseOffloadClause(
490     const OMPReverseOffloadClause *C) {}
491 
492 void OMPClauseProfiler::VisitOMPDynamicAllocatorsClause(
493     const OMPDynamicAllocatorsClause *C) {}
494 
495 void OMPClauseProfiler::VisitOMPAtomicDefaultMemOrderClause(
496     const OMPAtomicDefaultMemOrderClause *C) {}
497 
498 void OMPClauseProfiler::VisitOMPScheduleClause(const OMPScheduleClause *C) {
499   VistOMPClauseWithPreInit(C);
500   if (auto *S = C->getChunkSize())
501     Profiler->VisitStmt(S);
502 }
503 
504 void OMPClauseProfiler::VisitOMPOrderedClause(const OMPOrderedClause *C) {
505   if (auto *Num = C->getNumForLoops())
506     Profiler->VisitStmt(Num);
507 }
508 
509 void OMPClauseProfiler::VisitOMPNowaitClause(const OMPNowaitClause *) {}
510 
511 void OMPClauseProfiler::VisitOMPUntiedClause(const OMPUntiedClause *) {}
512 
513 void OMPClauseProfiler::VisitOMPMergeableClause(const OMPMergeableClause *) {}
514 
515 void OMPClauseProfiler::VisitOMPReadClause(const OMPReadClause *) {}
516 
517 void OMPClauseProfiler::VisitOMPWriteClause(const OMPWriteClause *) {}
518 
519 void OMPClauseProfiler::VisitOMPUpdateClause(const OMPUpdateClause *) {}
520 
521 void OMPClauseProfiler::VisitOMPCaptureClause(const OMPCaptureClause *) {}
522 
523 void OMPClauseProfiler::VisitOMPSeqCstClause(const OMPSeqCstClause *) {}
524 
525 void OMPClauseProfiler::VisitOMPAcqRelClause(const OMPAcqRelClause *) {}
526 
527 void OMPClauseProfiler::VisitOMPAcquireClause(const OMPAcquireClause *) {}
528 
529 void OMPClauseProfiler::VisitOMPReleaseClause(const OMPReleaseClause *) {}
530 
531 void OMPClauseProfiler::VisitOMPRelaxedClause(const OMPRelaxedClause *) {}
532 
533 void OMPClauseProfiler::VisitOMPThreadsClause(const OMPThreadsClause *) {}
534 
535 void OMPClauseProfiler::VisitOMPSIMDClause(const OMPSIMDClause *) {}
536 
537 void OMPClauseProfiler::VisitOMPNogroupClause(const OMPNogroupClause *) {}
538 
539 void OMPClauseProfiler::VisitOMPDestroyClause(const OMPDestroyClause *) {}
540 
541 template<typename T>
542 void OMPClauseProfiler::VisitOMPClauseList(T *Node) {
543   for (auto *E : Node->varlists()) {
544     if (E)
545       Profiler->VisitStmt(E);
546   }
547 }
548 
549 void OMPClauseProfiler::VisitOMPPrivateClause(const OMPPrivateClause *C) {
550   VisitOMPClauseList(C);
551   for (auto *E : C->private_copies()) {
552     if (E)
553       Profiler->VisitStmt(E);
554   }
555 }
556 void
557 OMPClauseProfiler::VisitOMPFirstprivateClause(const OMPFirstprivateClause *C) {
558   VisitOMPClauseList(C);
559   VistOMPClauseWithPreInit(C);
560   for (auto *E : C->private_copies()) {
561     if (E)
562       Profiler->VisitStmt(E);
563   }
564   for (auto *E : C->inits()) {
565     if (E)
566       Profiler->VisitStmt(E);
567   }
568 }
569 void
570 OMPClauseProfiler::VisitOMPLastprivateClause(const OMPLastprivateClause *C) {
571   VisitOMPClauseList(C);
572   VistOMPClauseWithPostUpdate(C);
573   for (auto *E : C->source_exprs()) {
574     if (E)
575       Profiler->VisitStmt(E);
576   }
577   for (auto *E : C->destination_exprs()) {
578     if (E)
579       Profiler->VisitStmt(E);
580   }
581   for (auto *E : C->assignment_ops()) {
582     if (E)
583       Profiler->VisitStmt(E);
584   }
585 }
586 void OMPClauseProfiler::VisitOMPSharedClause(const OMPSharedClause *C) {
587   VisitOMPClauseList(C);
588 }
589 void OMPClauseProfiler::VisitOMPReductionClause(
590                                          const OMPReductionClause *C) {
591   Profiler->VisitNestedNameSpecifier(
592       C->getQualifierLoc().getNestedNameSpecifier());
593   Profiler->VisitName(C->getNameInfo().getName());
594   VisitOMPClauseList(C);
595   VistOMPClauseWithPostUpdate(C);
596   for (auto *E : C->privates()) {
597     if (E)
598       Profiler->VisitStmt(E);
599   }
600   for (auto *E : C->lhs_exprs()) {
601     if (E)
602       Profiler->VisitStmt(E);
603   }
604   for (auto *E : C->rhs_exprs()) {
605     if (E)
606       Profiler->VisitStmt(E);
607   }
608   for (auto *E : C->reduction_ops()) {
609     if (E)
610       Profiler->VisitStmt(E);
611   }
612 }
613 void OMPClauseProfiler::VisitOMPTaskReductionClause(
614     const OMPTaskReductionClause *C) {
615   Profiler->VisitNestedNameSpecifier(
616       C->getQualifierLoc().getNestedNameSpecifier());
617   Profiler->VisitName(C->getNameInfo().getName());
618   VisitOMPClauseList(C);
619   VistOMPClauseWithPostUpdate(C);
620   for (auto *E : C->privates()) {
621     if (E)
622       Profiler->VisitStmt(E);
623   }
624   for (auto *E : C->lhs_exprs()) {
625     if (E)
626       Profiler->VisitStmt(E);
627   }
628   for (auto *E : C->rhs_exprs()) {
629     if (E)
630       Profiler->VisitStmt(E);
631   }
632   for (auto *E : C->reduction_ops()) {
633     if (E)
634       Profiler->VisitStmt(E);
635   }
636 }
637 void OMPClauseProfiler::VisitOMPInReductionClause(
638     const OMPInReductionClause *C) {
639   Profiler->VisitNestedNameSpecifier(
640       C->getQualifierLoc().getNestedNameSpecifier());
641   Profiler->VisitName(C->getNameInfo().getName());
642   VisitOMPClauseList(C);
643   VistOMPClauseWithPostUpdate(C);
644   for (auto *E : C->privates()) {
645     if (E)
646       Profiler->VisitStmt(E);
647   }
648   for (auto *E : C->lhs_exprs()) {
649     if (E)
650       Profiler->VisitStmt(E);
651   }
652   for (auto *E : C->rhs_exprs()) {
653     if (E)
654       Profiler->VisitStmt(E);
655   }
656   for (auto *E : C->reduction_ops()) {
657     if (E)
658       Profiler->VisitStmt(E);
659   }
660   for (auto *E : C->taskgroup_descriptors()) {
661     if (E)
662       Profiler->VisitStmt(E);
663   }
664 }
665 void OMPClauseProfiler::VisitOMPLinearClause(const OMPLinearClause *C) {
666   VisitOMPClauseList(C);
667   VistOMPClauseWithPostUpdate(C);
668   for (auto *E : C->privates()) {
669     if (E)
670       Profiler->VisitStmt(E);
671   }
672   for (auto *E : C->inits()) {
673     if (E)
674       Profiler->VisitStmt(E);
675   }
676   for (auto *E : C->updates()) {
677     if (E)
678       Profiler->VisitStmt(E);
679   }
680   for (auto *E : C->finals()) {
681     if (E)
682       Profiler->VisitStmt(E);
683   }
684   if (C->getStep())
685     Profiler->VisitStmt(C->getStep());
686   if (C->getCalcStep())
687     Profiler->VisitStmt(C->getCalcStep());
688 }
689 void OMPClauseProfiler::VisitOMPAlignedClause(const OMPAlignedClause *C) {
690   VisitOMPClauseList(C);
691   if (C->getAlignment())
692     Profiler->VisitStmt(C->getAlignment());
693 }
694 void OMPClauseProfiler::VisitOMPCopyinClause(const OMPCopyinClause *C) {
695   VisitOMPClauseList(C);
696   for (auto *E : C->source_exprs()) {
697     if (E)
698       Profiler->VisitStmt(E);
699   }
700   for (auto *E : C->destination_exprs()) {
701     if (E)
702       Profiler->VisitStmt(E);
703   }
704   for (auto *E : C->assignment_ops()) {
705     if (E)
706       Profiler->VisitStmt(E);
707   }
708 }
709 void
710 OMPClauseProfiler::VisitOMPCopyprivateClause(const OMPCopyprivateClause *C) {
711   VisitOMPClauseList(C);
712   for (auto *E : C->source_exprs()) {
713     if (E)
714       Profiler->VisitStmt(E);
715   }
716   for (auto *E : C->destination_exprs()) {
717     if (E)
718       Profiler->VisitStmt(E);
719   }
720   for (auto *E : C->assignment_ops()) {
721     if (E)
722       Profiler->VisitStmt(E);
723   }
724 }
725 void OMPClauseProfiler::VisitOMPFlushClause(const OMPFlushClause *C) {
726   VisitOMPClauseList(C);
727 }
728 void OMPClauseProfiler::VisitOMPDepobjClause(const OMPDepobjClause *C) {
729   if (const Expr *Depobj = C->getDepobj())
730     Profiler->VisitStmt(Depobj);
731 }
732 void OMPClauseProfiler::VisitOMPDependClause(const OMPDependClause *C) {
733   VisitOMPClauseList(C);
734 }
735 void OMPClauseProfiler::VisitOMPDeviceClause(const OMPDeviceClause *C) {
736   if (C->getDevice())
737     Profiler->VisitStmt(C->getDevice());
738 }
739 void OMPClauseProfiler::VisitOMPMapClause(const OMPMapClause *C) {
740   VisitOMPClauseList(C);
741 }
742 void OMPClauseProfiler::VisitOMPAllocateClause(const OMPAllocateClause *C) {
743   if (Expr *Allocator = C->getAllocator())
744     Profiler->VisitStmt(Allocator);
745   VisitOMPClauseList(C);
746 }
747 void OMPClauseProfiler::VisitOMPNumTeamsClause(const OMPNumTeamsClause *C) {
748   VistOMPClauseWithPreInit(C);
749   if (C->getNumTeams())
750     Profiler->VisitStmt(C->getNumTeams());
751 }
752 void OMPClauseProfiler::VisitOMPThreadLimitClause(
753     const OMPThreadLimitClause *C) {
754   VistOMPClauseWithPreInit(C);
755   if (C->getThreadLimit())
756     Profiler->VisitStmt(C->getThreadLimit());
757 }
758 void OMPClauseProfiler::VisitOMPPriorityClause(const OMPPriorityClause *C) {
759   VistOMPClauseWithPreInit(C);
760   if (C->getPriority())
761     Profiler->VisitStmt(C->getPriority());
762 }
763 void OMPClauseProfiler::VisitOMPGrainsizeClause(const OMPGrainsizeClause *C) {
764   VistOMPClauseWithPreInit(C);
765   if (C->getGrainsize())
766     Profiler->VisitStmt(C->getGrainsize());
767 }
768 void OMPClauseProfiler::VisitOMPNumTasksClause(const OMPNumTasksClause *C) {
769   VistOMPClauseWithPreInit(C);
770   if (C->getNumTasks())
771     Profiler->VisitStmt(C->getNumTasks());
772 }
773 void OMPClauseProfiler::VisitOMPHintClause(const OMPHintClause *C) {
774   if (C->getHint())
775     Profiler->VisitStmt(C->getHint());
776 }
777 void OMPClauseProfiler::VisitOMPToClause(const OMPToClause *C) {
778   VisitOMPClauseList(C);
779 }
780 void OMPClauseProfiler::VisitOMPFromClause(const OMPFromClause *C) {
781   VisitOMPClauseList(C);
782 }
783 void OMPClauseProfiler::VisitOMPUseDevicePtrClause(
784     const OMPUseDevicePtrClause *C) {
785   VisitOMPClauseList(C);
786 }
787 void OMPClauseProfiler::VisitOMPIsDevicePtrClause(
788     const OMPIsDevicePtrClause *C) {
789   VisitOMPClauseList(C);
790 }
791 void OMPClauseProfiler::VisitOMPNontemporalClause(
792     const OMPNontemporalClause *C) {
793   VisitOMPClauseList(C);
794   for (auto *E : C->private_refs())
795     Profiler->VisitStmt(E);
796 }
797 void OMPClauseProfiler::VisitOMPInclusiveClause(const OMPInclusiveClause *C) {
798   VisitOMPClauseList(C);
799 }
800 void OMPClauseProfiler::VisitOMPExclusiveClause(const OMPExclusiveClause *C) {
801   VisitOMPClauseList(C);
802 }
803 void OMPClauseProfiler::VisitOMPUsesAllocatorsClause(
804     const OMPUsesAllocatorsClause *C) {
805   for (unsigned I = 0, E = C->getNumberOfAllocators(); I < E; ++I) {
806     OMPUsesAllocatorsClause::Data D = C->getAllocatorData(I);
807     Profiler->VisitStmt(D.Allocator);
808     if (D.AllocatorTraits)
809       Profiler->VisitStmt(D.AllocatorTraits);
810   }
811 }
812 void OMPClauseProfiler::VisitOMPAffinityClause(const OMPAffinityClause *C) {
813   if (const Expr *Modifier = C->getModifier())
814     Profiler->VisitStmt(Modifier);
815   for (const Expr *E : C->varlists())
816     Profiler->VisitStmt(E);
817 }
818 void OMPClauseProfiler::VisitOMPOrderClause(const OMPOrderClause *C) {}
819 } // namespace
820 
821 void
822 StmtProfiler::VisitOMPExecutableDirective(const OMPExecutableDirective *S) {
823   VisitStmt(S);
824   OMPClauseProfiler P(this);
825   ArrayRef<OMPClause *> Clauses = S->clauses();
826   for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E = Clauses.end();
827        I != E; ++I)
828     if (*I)
829       P.Visit(*I);
830 }
831 
832 void StmtProfiler::VisitOMPLoopDirective(const OMPLoopDirective *S) {
833   VisitOMPExecutableDirective(S);
834 }
835 
836 void StmtProfiler::VisitOMPParallelDirective(const OMPParallelDirective *S) {
837   VisitOMPExecutableDirective(S);
838 }
839 
840 void StmtProfiler::VisitOMPSimdDirective(const OMPSimdDirective *S) {
841   VisitOMPLoopDirective(S);
842 }
843 
844 void StmtProfiler::VisitOMPForDirective(const OMPForDirective *S) {
845   VisitOMPLoopDirective(S);
846 }
847 
848 void StmtProfiler::VisitOMPForSimdDirective(const OMPForSimdDirective *S) {
849   VisitOMPLoopDirective(S);
850 }
851 
852 void StmtProfiler::VisitOMPSectionsDirective(const OMPSectionsDirective *S) {
853   VisitOMPExecutableDirective(S);
854 }
855 
856 void StmtProfiler::VisitOMPSectionDirective(const OMPSectionDirective *S) {
857   VisitOMPExecutableDirective(S);
858 }
859 
860 void StmtProfiler::VisitOMPSingleDirective(const OMPSingleDirective *S) {
861   VisitOMPExecutableDirective(S);
862 }
863 
864 void StmtProfiler::VisitOMPMasterDirective(const OMPMasterDirective *S) {
865   VisitOMPExecutableDirective(S);
866 }
867 
868 void StmtProfiler::VisitOMPCriticalDirective(const OMPCriticalDirective *S) {
869   VisitOMPExecutableDirective(S);
870   VisitName(S->getDirectiveName().getName());
871 }
872 
873 void
874 StmtProfiler::VisitOMPParallelForDirective(const OMPParallelForDirective *S) {
875   VisitOMPLoopDirective(S);
876 }
877 
878 void StmtProfiler::VisitOMPParallelForSimdDirective(
879     const OMPParallelForSimdDirective *S) {
880   VisitOMPLoopDirective(S);
881 }
882 
883 void StmtProfiler::VisitOMPParallelMasterDirective(
884     const OMPParallelMasterDirective *S) {
885   VisitOMPExecutableDirective(S);
886 }
887 
888 void StmtProfiler::VisitOMPParallelSectionsDirective(
889     const OMPParallelSectionsDirective *S) {
890   VisitOMPExecutableDirective(S);
891 }
892 
893 void StmtProfiler::VisitOMPTaskDirective(const OMPTaskDirective *S) {
894   VisitOMPExecutableDirective(S);
895 }
896 
897 void StmtProfiler::VisitOMPTaskyieldDirective(const OMPTaskyieldDirective *S) {
898   VisitOMPExecutableDirective(S);
899 }
900 
901 void StmtProfiler::VisitOMPBarrierDirective(const OMPBarrierDirective *S) {
902   VisitOMPExecutableDirective(S);
903 }
904 
905 void StmtProfiler::VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *S) {
906   VisitOMPExecutableDirective(S);
907 }
908 
909 void StmtProfiler::VisitOMPTaskgroupDirective(const OMPTaskgroupDirective *S) {
910   VisitOMPExecutableDirective(S);
911   if (const Expr *E = S->getReductionRef())
912     VisitStmt(E);
913 }
914 
915 void StmtProfiler::VisitOMPFlushDirective(const OMPFlushDirective *S) {
916   VisitOMPExecutableDirective(S);
917 }
918 
919 void StmtProfiler::VisitOMPDepobjDirective(const OMPDepobjDirective *S) {
920   VisitOMPExecutableDirective(S);
921 }
922 
923 void StmtProfiler::VisitOMPScanDirective(const OMPScanDirective *S) {
924   VisitOMPExecutableDirective(S);
925 }
926 
927 void StmtProfiler::VisitOMPOrderedDirective(const OMPOrderedDirective *S) {
928   VisitOMPExecutableDirective(S);
929 }
930 
931 void StmtProfiler::VisitOMPAtomicDirective(const OMPAtomicDirective *S) {
932   VisitOMPExecutableDirective(S);
933 }
934 
935 void StmtProfiler::VisitOMPTargetDirective(const OMPTargetDirective *S) {
936   VisitOMPExecutableDirective(S);
937 }
938 
939 void StmtProfiler::VisitOMPTargetDataDirective(const OMPTargetDataDirective *S) {
940   VisitOMPExecutableDirective(S);
941 }
942 
943 void StmtProfiler::VisitOMPTargetEnterDataDirective(
944     const OMPTargetEnterDataDirective *S) {
945   VisitOMPExecutableDirective(S);
946 }
947 
948 void StmtProfiler::VisitOMPTargetExitDataDirective(
949     const OMPTargetExitDataDirective *S) {
950   VisitOMPExecutableDirective(S);
951 }
952 
953 void StmtProfiler::VisitOMPTargetParallelDirective(
954     const OMPTargetParallelDirective *S) {
955   VisitOMPExecutableDirective(S);
956 }
957 
958 void StmtProfiler::VisitOMPTargetParallelForDirective(
959     const OMPTargetParallelForDirective *S) {
960   VisitOMPExecutableDirective(S);
961 }
962 
963 void StmtProfiler::VisitOMPTeamsDirective(const OMPTeamsDirective *S) {
964   VisitOMPExecutableDirective(S);
965 }
966 
967 void StmtProfiler::VisitOMPCancellationPointDirective(
968     const OMPCancellationPointDirective *S) {
969   VisitOMPExecutableDirective(S);
970 }
971 
972 void StmtProfiler::VisitOMPCancelDirective(const OMPCancelDirective *S) {
973   VisitOMPExecutableDirective(S);
974 }
975 
976 void StmtProfiler::VisitOMPTaskLoopDirective(const OMPTaskLoopDirective *S) {
977   VisitOMPLoopDirective(S);
978 }
979 
980 void StmtProfiler::VisitOMPTaskLoopSimdDirective(
981     const OMPTaskLoopSimdDirective *S) {
982   VisitOMPLoopDirective(S);
983 }
984 
985 void StmtProfiler::VisitOMPMasterTaskLoopDirective(
986     const OMPMasterTaskLoopDirective *S) {
987   VisitOMPLoopDirective(S);
988 }
989 
990 void StmtProfiler::VisitOMPMasterTaskLoopSimdDirective(
991     const OMPMasterTaskLoopSimdDirective *S) {
992   VisitOMPLoopDirective(S);
993 }
994 
995 void StmtProfiler::VisitOMPParallelMasterTaskLoopDirective(
996     const OMPParallelMasterTaskLoopDirective *S) {
997   VisitOMPLoopDirective(S);
998 }
999 
1000 void StmtProfiler::VisitOMPParallelMasterTaskLoopSimdDirective(
1001     const OMPParallelMasterTaskLoopSimdDirective *S) {
1002   VisitOMPLoopDirective(S);
1003 }
1004 
1005 void StmtProfiler::VisitOMPDistributeDirective(
1006     const OMPDistributeDirective *S) {
1007   VisitOMPLoopDirective(S);
1008 }
1009 
1010 void OMPClauseProfiler::VisitOMPDistScheduleClause(
1011     const OMPDistScheduleClause *C) {
1012   VistOMPClauseWithPreInit(C);
1013   if (auto *S = C->getChunkSize())
1014     Profiler->VisitStmt(S);
1015 }
1016 
1017 void OMPClauseProfiler::VisitOMPDefaultmapClause(const OMPDefaultmapClause *) {}
1018 
1019 void StmtProfiler::VisitOMPTargetUpdateDirective(
1020     const OMPTargetUpdateDirective *S) {
1021   VisitOMPExecutableDirective(S);
1022 }
1023 
1024 void StmtProfiler::VisitOMPDistributeParallelForDirective(
1025     const OMPDistributeParallelForDirective *S) {
1026   VisitOMPLoopDirective(S);
1027 }
1028 
1029 void StmtProfiler::VisitOMPDistributeParallelForSimdDirective(
1030     const OMPDistributeParallelForSimdDirective *S) {
1031   VisitOMPLoopDirective(S);
1032 }
1033 
1034 void StmtProfiler::VisitOMPDistributeSimdDirective(
1035     const OMPDistributeSimdDirective *S) {
1036   VisitOMPLoopDirective(S);
1037 }
1038 
1039 void StmtProfiler::VisitOMPTargetParallelForSimdDirective(
1040     const OMPTargetParallelForSimdDirective *S) {
1041   VisitOMPLoopDirective(S);
1042 }
1043 
1044 void StmtProfiler::VisitOMPTargetSimdDirective(
1045     const OMPTargetSimdDirective *S) {
1046   VisitOMPLoopDirective(S);
1047 }
1048 
1049 void StmtProfiler::VisitOMPTeamsDistributeDirective(
1050     const OMPTeamsDistributeDirective *S) {
1051   VisitOMPLoopDirective(S);
1052 }
1053 
1054 void StmtProfiler::VisitOMPTeamsDistributeSimdDirective(
1055     const OMPTeamsDistributeSimdDirective *S) {
1056   VisitOMPLoopDirective(S);
1057 }
1058 
1059 void StmtProfiler::VisitOMPTeamsDistributeParallelForSimdDirective(
1060     const OMPTeamsDistributeParallelForSimdDirective *S) {
1061   VisitOMPLoopDirective(S);
1062 }
1063 
1064 void StmtProfiler::VisitOMPTeamsDistributeParallelForDirective(
1065     const OMPTeamsDistributeParallelForDirective *S) {
1066   VisitOMPLoopDirective(S);
1067 }
1068 
1069 void StmtProfiler::VisitOMPTargetTeamsDirective(
1070     const OMPTargetTeamsDirective *S) {
1071   VisitOMPExecutableDirective(S);
1072 }
1073 
1074 void StmtProfiler::VisitOMPTargetTeamsDistributeDirective(
1075     const OMPTargetTeamsDistributeDirective *S) {
1076   VisitOMPLoopDirective(S);
1077 }
1078 
1079 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForDirective(
1080     const OMPTargetTeamsDistributeParallelForDirective *S) {
1081   VisitOMPLoopDirective(S);
1082 }
1083 
1084 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
1085     const OMPTargetTeamsDistributeParallelForSimdDirective *S) {
1086   VisitOMPLoopDirective(S);
1087 }
1088 
1089 void StmtProfiler::VisitOMPTargetTeamsDistributeSimdDirective(
1090     const OMPTargetTeamsDistributeSimdDirective *S) {
1091   VisitOMPLoopDirective(S);
1092 }
1093 
1094 void StmtProfiler::VisitExpr(const Expr *S) {
1095   VisitStmt(S);
1096 }
1097 
1098 void StmtProfiler::VisitConstantExpr(const ConstantExpr *S) {
1099   VisitExpr(S);
1100 }
1101 
1102 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
1103   VisitExpr(S);
1104   if (!Canonical)
1105     VisitNestedNameSpecifier(S->getQualifier());
1106   VisitDecl(S->getDecl());
1107   if (!Canonical) {
1108     ID.AddBoolean(S->hasExplicitTemplateArgs());
1109     if (S->hasExplicitTemplateArgs())
1110       VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1111   }
1112 }
1113 
1114 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
1115   VisitExpr(S);
1116   ID.AddInteger(S->getIdentKind());
1117 }
1118 
1119 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
1120   VisitExpr(S);
1121   S->getValue().Profile(ID);
1122   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1123 }
1124 
1125 void StmtProfiler::VisitFixedPointLiteral(const FixedPointLiteral *S) {
1126   VisitExpr(S);
1127   S->getValue().Profile(ID);
1128   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1129 }
1130 
1131 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
1132   VisitExpr(S);
1133   ID.AddInteger(S->getKind());
1134   ID.AddInteger(S->getValue());
1135 }
1136 
1137 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
1138   VisitExpr(S);
1139   S->getValue().Profile(ID);
1140   ID.AddBoolean(S->isExact());
1141   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1142 }
1143 
1144 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
1145   VisitExpr(S);
1146 }
1147 
1148 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
1149   VisitExpr(S);
1150   ID.AddString(S->getBytes());
1151   ID.AddInteger(S->getKind());
1152 }
1153 
1154 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
1155   VisitExpr(S);
1156 }
1157 
1158 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
1159   VisitExpr(S);
1160 }
1161 
1162 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
1163   VisitExpr(S);
1164   ID.AddInteger(S->getOpcode());
1165 }
1166 
1167 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
1168   VisitType(S->getTypeSourceInfo()->getType());
1169   unsigned n = S->getNumComponents();
1170   for (unsigned i = 0; i < n; ++i) {
1171     const OffsetOfNode &ON = S->getComponent(i);
1172     ID.AddInteger(ON.getKind());
1173     switch (ON.getKind()) {
1174     case OffsetOfNode::Array:
1175       // Expressions handled below.
1176       break;
1177 
1178     case OffsetOfNode::Field:
1179       VisitDecl(ON.getField());
1180       break;
1181 
1182     case OffsetOfNode::Identifier:
1183       VisitIdentifierInfo(ON.getFieldName());
1184       break;
1185 
1186     case OffsetOfNode::Base:
1187       // These nodes are implicit, and therefore don't need profiling.
1188       break;
1189     }
1190   }
1191 
1192   VisitExpr(S);
1193 }
1194 
1195 void
1196 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
1197   VisitExpr(S);
1198   ID.AddInteger(S->getKind());
1199   if (S->isArgumentType())
1200     VisitType(S->getArgumentType());
1201 }
1202 
1203 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
1204   VisitExpr(S);
1205 }
1206 
1207 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
1208   VisitExpr(S);
1209 }
1210 
1211 void StmtProfiler::VisitOMPArrayShapingExpr(const OMPArrayShapingExpr *S) {
1212   VisitExpr(S);
1213 }
1214 
1215 void StmtProfiler::VisitOMPIteratorExpr(const OMPIteratorExpr *S) {
1216   VisitExpr(S);
1217   for (unsigned I = 0, E = S->numOfIterators(); I < E; ++I)
1218     VisitDecl(S->getIteratorDecl(I));
1219 }
1220 
1221 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
1222   VisitExpr(S);
1223 }
1224 
1225 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
1226   VisitExpr(S);
1227   VisitDecl(S->getMemberDecl());
1228   if (!Canonical)
1229     VisitNestedNameSpecifier(S->getQualifier());
1230   ID.AddBoolean(S->isArrow());
1231 }
1232 
1233 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
1234   VisitExpr(S);
1235   ID.AddBoolean(S->isFileScope());
1236 }
1237 
1238 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
1239   VisitExpr(S);
1240 }
1241 
1242 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
1243   VisitCastExpr(S);
1244   ID.AddInteger(S->getValueKind());
1245 }
1246 
1247 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
1248   VisitCastExpr(S);
1249   VisitType(S->getTypeAsWritten());
1250 }
1251 
1252 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
1253   VisitExplicitCastExpr(S);
1254 }
1255 
1256 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
1257   VisitExpr(S);
1258   ID.AddInteger(S->getOpcode());
1259 }
1260 
1261 void
1262 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
1263   VisitBinaryOperator(S);
1264 }
1265 
1266 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
1267   VisitExpr(S);
1268 }
1269 
1270 void StmtProfiler::VisitBinaryConditionalOperator(
1271     const BinaryConditionalOperator *S) {
1272   VisitExpr(S);
1273 }
1274 
1275 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
1276   VisitExpr(S);
1277   VisitDecl(S->getLabel());
1278 }
1279 
1280 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
1281   VisitExpr(S);
1282 }
1283 
1284 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
1285   VisitExpr(S);
1286 }
1287 
1288 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
1289   VisitExpr(S);
1290 }
1291 
1292 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
1293   VisitExpr(S);
1294 }
1295 
1296 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
1297   VisitExpr(S);
1298 }
1299 
1300 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
1301   VisitExpr(S);
1302 }
1303 
1304 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
1305   if (S->getSyntacticForm()) {
1306     VisitInitListExpr(S->getSyntacticForm());
1307     return;
1308   }
1309 
1310   VisitExpr(S);
1311 }
1312 
1313 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
1314   VisitExpr(S);
1315   ID.AddBoolean(S->usesGNUSyntax());
1316   for (const DesignatedInitExpr::Designator &D : S->designators()) {
1317     if (D.isFieldDesignator()) {
1318       ID.AddInteger(0);
1319       VisitName(D.getFieldName());
1320       continue;
1321     }
1322 
1323     if (D.isArrayDesignator()) {
1324       ID.AddInteger(1);
1325     } else {
1326       assert(D.isArrayRangeDesignator());
1327       ID.AddInteger(2);
1328     }
1329     ID.AddInteger(D.getFirstExprIndex());
1330   }
1331 }
1332 
1333 // Seems that if VisitInitListExpr() only works on the syntactic form of an
1334 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
1335 void StmtProfiler::VisitDesignatedInitUpdateExpr(
1336     const DesignatedInitUpdateExpr *S) {
1337   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
1338                    "initializer");
1339 }
1340 
1341 void StmtProfiler::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *S) {
1342   VisitExpr(S);
1343 }
1344 
1345 void StmtProfiler::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *S) {
1346   VisitExpr(S);
1347 }
1348 
1349 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
1350   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
1351 }
1352 
1353 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
1354   VisitExpr(S);
1355 }
1356 
1357 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
1358   VisitExpr(S);
1359   VisitName(&S->getAccessor());
1360 }
1361 
1362 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
1363   VisitExpr(S);
1364   VisitDecl(S->getBlockDecl());
1365 }
1366 
1367 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
1368   VisitExpr(S);
1369   for (const GenericSelectionExpr::ConstAssociation Assoc :
1370        S->associations()) {
1371     QualType T = Assoc.getType();
1372     if (T.isNull())
1373       ID.AddPointer(nullptr);
1374     else
1375       VisitType(T);
1376     VisitExpr(Assoc.getAssociationExpr());
1377   }
1378 }
1379 
1380 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
1381   VisitExpr(S);
1382   for (PseudoObjectExpr::const_semantics_iterator
1383          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
1384     // Normally, we would not profile the source expressions of OVEs.
1385     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
1386       Visit(OVE->getSourceExpr());
1387 }
1388 
1389 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
1390   VisitExpr(S);
1391   ID.AddInteger(S->getOp());
1392 }
1393 
1394 void StmtProfiler::VisitConceptSpecializationExpr(
1395                                            const ConceptSpecializationExpr *S) {
1396   VisitExpr(S);
1397   VisitDecl(S->getNamedConcept());
1398   for (const TemplateArgument &Arg : S->getTemplateArguments())
1399     VisitTemplateArgument(Arg);
1400 }
1401 
1402 void StmtProfiler::VisitRequiresExpr(const RequiresExpr *S) {
1403   VisitExpr(S);
1404   ID.AddInteger(S->getLocalParameters().size());
1405   for (ParmVarDecl *LocalParam : S->getLocalParameters())
1406     VisitDecl(LocalParam);
1407   ID.AddInteger(S->getRequirements().size());
1408   for (concepts::Requirement *Req : S->getRequirements()) {
1409     if (auto *TypeReq = dyn_cast<concepts::TypeRequirement>(Req)) {
1410       ID.AddInteger(concepts::Requirement::RK_Type);
1411       ID.AddBoolean(TypeReq->isSubstitutionFailure());
1412       if (!TypeReq->isSubstitutionFailure())
1413         VisitType(TypeReq->getType()->getType());
1414     } else if (auto *ExprReq = dyn_cast<concepts::ExprRequirement>(Req)) {
1415       ID.AddInteger(concepts::Requirement::RK_Compound);
1416       ID.AddBoolean(ExprReq->isExprSubstitutionFailure());
1417       if (!ExprReq->isExprSubstitutionFailure())
1418         Visit(ExprReq->getExpr());
1419       // C++2a [expr.prim.req.compound]p1 Example:
1420       //    [...] The compound-requirement in C1 requires that x++ is a valid
1421       //    expression. It is equivalent to the simple-requirement x++; [...]
1422       // We therefore do not profile isSimple() here.
1423       ID.AddBoolean(ExprReq->getNoexceptLoc().isValid());
1424       const concepts::ExprRequirement::ReturnTypeRequirement &RetReq =
1425           ExprReq->getReturnTypeRequirement();
1426       if (RetReq.isEmpty()) {
1427         ID.AddInteger(0);
1428       } else if (RetReq.isTypeConstraint()) {
1429         ID.AddInteger(1);
1430         Visit(RetReq.getTypeConstraint()->getImmediatelyDeclaredConstraint());
1431       } else {
1432         assert(RetReq.isSubstitutionFailure());
1433         ID.AddInteger(2);
1434       }
1435     } else {
1436       ID.AddInteger(concepts::Requirement::RK_Nested);
1437       auto *NestedReq = cast<concepts::NestedRequirement>(Req);
1438       ID.AddBoolean(NestedReq->isSubstitutionFailure());
1439       if (!NestedReq->isSubstitutionFailure())
1440         Visit(NestedReq->getConstraintExpr());
1441     }
1442   }
1443 }
1444 
1445 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
1446                                           UnaryOperatorKind &UnaryOp,
1447                                           BinaryOperatorKind &BinaryOp) {
1448   switch (S->getOperator()) {
1449   case OO_None:
1450   case OO_New:
1451   case OO_Delete:
1452   case OO_Array_New:
1453   case OO_Array_Delete:
1454   case OO_Arrow:
1455   case OO_Conditional:
1456   case NUM_OVERLOADED_OPERATORS:
1457     llvm_unreachable("Invalid operator call kind");
1458 
1459   case OO_Plus:
1460     if (S->getNumArgs() == 1) {
1461       UnaryOp = UO_Plus;
1462       return Stmt::UnaryOperatorClass;
1463     }
1464 
1465     BinaryOp = BO_Add;
1466     return Stmt::BinaryOperatorClass;
1467 
1468   case OO_Minus:
1469     if (S->getNumArgs() == 1) {
1470       UnaryOp = UO_Minus;
1471       return Stmt::UnaryOperatorClass;
1472     }
1473 
1474     BinaryOp = BO_Sub;
1475     return Stmt::BinaryOperatorClass;
1476 
1477   case OO_Star:
1478     if (S->getNumArgs() == 1) {
1479       UnaryOp = UO_Deref;
1480       return Stmt::UnaryOperatorClass;
1481     }
1482 
1483     BinaryOp = BO_Mul;
1484     return Stmt::BinaryOperatorClass;
1485 
1486   case OO_Slash:
1487     BinaryOp = BO_Div;
1488     return Stmt::BinaryOperatorClass;
1489 
1490   case OO_Percent:
1491     BinaryOp = BO_Rem;
1492     return Stmt::BinaryOperatorClass;
1493 
1494   case OO_Caret:
1495     BinaryOp = BO_Xor;
1496     return Stmt::BinaryOperatorClass;
1497 
1498   case OO_Amp:
1499     if (S->getNumArgs() == 1) {
1500       UnaryOp = UO_AddrOf;
1501       return Stmt::UnaryOperatorClass;
1502     }
1503 
1504     BinaryOp = BO_And;
1505     return Stmt::BinaryOperatorClass;
1506 
1507   case OO_Pipe:
1508     BinaryOp = BO_Or;
1509     return Stmt::BinaryOperatorClass;
1510 
1511   case OO_Tilde:
1512     UnaryOp = UO_Not;
1513     return Stmt::UnaryOperatorClass;
1514 
1515   case OO_Exclaim:
1516     UnaryOp = UO_LNot;
1517     return Stmt::UnaryOperatorClass;
1518 
1519   case OO_Equal:
1520     BinaryOp = BO_Assign;
1521     return Stmt::BinaryOperatorClass;
1522 
1523   case OO_Less:
1524     BinaryOp = BO_LT;
1525     return Stmt::BinaryOperatorClass;
1526 
1527   case OO_Greater:
1528     BinaryOp = BO_GT;
1529     return Stmt::BinaryOperatorClass;
1530 
1531   case OO_PlusEqual:
1532     BinaryOp = BO_AddAssign;
1533     return Stmt::CompoundAssignOperatorClass;
1534 
1535   case OO_MinusEqual:
1536     BinaryOp = BO_SubAssign;
1537     return Stmt::CompoundAssignOperatorClass;
1538 
1539   case OO_StarEqual:
1540     BinaryOp = BO_MulAssign;
1541     return Stmt::CompoundAssignOperatorClass;
1542 
1543   case OO_SlashEqual:
1544     BinaryOp = BO_DivAssign;
1545     return Stmt::CompoundAssignOperatorClass;
1546 
1547   case OO_PercentEqual:
1548     BinaryOp = BO_RemAssign;
1549     return Stmt::CompoundAssignOperatorClass;
1550 
1551   case OO_CaretEqual:
1552     BinaryOp = BO_XorAssign;
1553     return Stmt::CompoundAssignOperatorClass;
1554 
1555   case OO_AmpEqual:
1556     BinaryOp = BO_AndAssign;
1557     return Stmt::CompoundAssignOperatorClass;
1558 
1559   case OO_PipeEqual:
1560     BinaryOp = BO_OrAssign;
1561     return Stmt::CompoundAssignOperatorClass;
1562 
1563   case OO_LessLess:
1564     BinaryOp = BO_Shl;
1565     return Stmt::BinaryOperatorClass;
1566 
1567   case OO_GreaterGreater:
1568     BinaryOp = BO_Shr;
1569     return Stmt::BinaryOperatorClass;
1570 
1571   case OO_LessLessEqual:
1572     BinaryOp = BO_ShlAssign;
1573     return Stmt::CompoundAssignOperatorClass;
1574 
1575   case OO_GreaterGreaterEqual:
1576     BinaryOp = BO_ShrAssign;
1577     return Stmt::CompoundAssignOperatorClass;
1578 
1579   case OO_EqualEqual:
1580     BinaryOp = BO_EQ;
1581     return Stmt::BinaryOperatorClass;
1582 
1583   case OO_ExclaimEqual:
1584     BinaryOp = BO_NE;
1585     return Stmt::BinaryOperatorClass;
1586 
1587   case OO_LessEqual:
1588     BinaryOp = BO_LE;
1589     return Stmt::BinaryOperatorClass;
1590 
1591   case OO_GreaterEqual:
1592     BinaryOp = BO_GE;
1593     return Stmt::BinaryOperatorClass;
1594 
1595   case OO_Spaceship:
1596     BinaryOp = BO_Cmp;
1597     return Stmt::BinaryOperatorClass;
1598 
1599   case OO_AmpAmp:
1600     BinaryOp = BO_LAnd;
1601     return Stmt::BinaryOperatorClass;
1602 
1603   case OO_PipePipe:
1604     BinaryOp = BO_LOr;
1605     return Stmt::BinaryOperatorClass;
1606 
1607   case OO_PlusPlus:
1608     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1609                                   : UO_PostInc;
1610     return Stmt::UnaryOperatorClass;
1611 
1612   case OO_MinusMinus:
1613     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1614                                   : UO_PostDec;
1615     return Stmt::UnaryOperatorClass;
1616 
1617   case OO_Comma:
1618     BinaryOp = BO_Comma;
1619     return Stmt::BinaryOperatorClass;
1620 
1621   case OO_ArrowStar:
1622     BinaryOp = BO_PtrMemI;
1623     return Stmt::BinaryOperatorClass;
1624 
1625   case OO_Subscript:
1626     return Stmt::ArraySubscriptExprClass;
1627 
1628   case OO_Call:
1629     return Stmt::CallExprClass;
1630 
1631   case OO_Coawait:
1632     UnaryOp = UO_Coawait;
1633     return Stmt::UnaryOperatorClass;
1634   }
1635 
1636   llvm_unreachable("Invalid overloaded operator expression");
1637 }
1638 
1639 #if defined(_MSC_VER) && !defined(__clang__)
1640 #if _MSC_VER == 1911
1641 // Work around https://developercommunity.visualstudio.com/content/problem/84002/clang-cl-when-built-with-vc-2017-crashes-cause-vc.html
1642 // MSVC 2017 update 3 miscompiles this function, and a clang built with it
1643 // will crash in stage 2 of a bootstrap build.
1644 #pragma optimize("", off)
1645 #endif
1646 #endif
1647 
1648 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1649   if (S->isTypeDependent()) {
1650     // Type-dependent operator calls are profiled like their underlying
1651     // syntactic operator.
1652     //
1653     // An operator call to operator-> is always implicit, so just skip it. The
1654     // enclosing MemberExpr will profile the actual member access.
1655     if (S->getOperator() == OO_Arrow)
1656       return Visit(S->getArg(0));
1657 
1658     UnaryOperatorKind UnaryOp = UO_Extension;
1659     BinaryOperatorKind BinaryOp = BO_Comma;
1660     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1661 
1662     ID.AddInteger(SC);
1663     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1664       Visit(S->getArg(I));
1665     if (SC == Stmt::UnaryOperatorClass)
1666       ID.AddInteger(UnaryOp);
1667     else if (SC == Stmt::BinaryOperatorClass ||
1668              SC == Stmt::CompoundAssignOperatorClass)
1669       ID.AddInteger(BinaryOp);
1670     else
1671       assert(SC == Stmt::ArraySubscriptExprClass || SC == Stmt::CallExprClass);
1672 
1673     return;
1674   }
1675 
1676   VisitCallExpr(S);
1677   ID.AddInteger(S->getOperator());
1678 }
1679 
1680 void StmtProfiler::VisitCXXRewrittenBinaryOperator(
1681     const CXXRewrittenBinaryOperator *S) {
1682   // If a rewritten operator were ever to be type-dependent, we should profile
1683   // it following its syntactic operator.
1684   assert(!S->isTypeDependent() &&
1685          "resolved rewritten operator should never be type-dependent");
1686   ID.AddBoolean(S->isReversed());
1687   VisitExpr(S->getSemanticForm());
1688 }
1689 
1690 #if defined(_MSC_VER) && !defined(__clang__)
1691 #if _MSC_VER == 1911
1692 #pragma optimize("", on)
1693 #endif
1694 #endif
1695 
1696 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1697   VisitCallExpr(S);
1698 }
1699 
1700 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1701   VisitCallExpr(S);
1702 }
1703 
1704 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1705   VisitExpr(S);
1706 }
1707 
1708 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1709   VisitExplicitCastExpr(S);
1710 }
1711 
1712 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1713   VisitCXXNamedCastExpr(S);
1714 }
1715 
1716 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1717   VisitCXXNamedCastExpr(S);
1718 }
1719 
1720 void
1721 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1722   VisitCXXNamedCastExpr(S);
1723 }
1724 
1725 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1726   VisitCXXNamedCastExpr(S);
1727 }
1728 
1729 void StmtProfiler::VisitBuiltinBitCastExpr(const BuiltinBitCastExpr *S) {
1730   VisitExpr(S);
1731   VisitType(S->getTypeInfoAsWritten()->getType());
1732 }
1733 
1734 void StmtProfiler::VisitCXXAddrspaceCastExpr(const CXXAddrspaceCastExpr *S) {
1735   VisitCXXNamedCastExpr(S);
1736 }
1737 
1738 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1739   VisitCallExpr(S);
1740 }
1741 
1742 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1743   VisitExpr(S);
1744   ID.AddBoolean(S->getValue());
1745 }
1746 
1747 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1748   VisitExpr(S);
1749 }
1750 
1751 void StmtProfiler::VisitCXXStdInitializerListExpr(
1752     const CXXStdInitializerListExpr *S) {
1753   VisitExpr(S);
1754 }
1755 
1756 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1757   VisitExpr(S);
1758   if (S->isTypeOperand())
1759     VisitType(S->getTypeOperandSourceInfo()->getType());
1760 }
1761 
1762 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1763   VisitExpr(S);
1764   if (S->isTypeOperand())
1765     VisitType(S->getTypeOperandSourceInfo()->getType());
1766 }
1767 
1768 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1769   VisitExpr(S);
1770   VisitDecl(S->getPropertyDecl());
1771 }
1772 
1773 void StmtProfiler::VisitMSPropertySubscriptExpr(
1774     const MSPropertySubscriptExpr *S) {
1775   VisitExpr(S);
1776 }
1777 
1778 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1779   VisitExpr(S);
1780   ID.AddBoolean(S->isImplicit());
1781 }
1782 
1783 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1784   VisitExpr(S);
1785 }
1786 
1787 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1788   VisitExpr(S);
1789   VisitDecl(S->getParam());
1790 }
1791 
1792 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1793   VisitExpr(S);
1794   VisitDecl(S->getField());
1795 }
1796 
1797 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1798   VisitExpr(S);
1799   VisitDecl(
1800          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1801 }
1802 
1803 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1804   VisitExpr(S);
1805   VisitDecl(S->getConstructor());
1806   ID.AddBoolean(S->isElidable());
1807 }
1808 
1809 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
1810     const CXXInheritedCtorInitExpr *S) {
1811   VisitExpr(S);
1812   VisitDecl(S->getConstructor());
1813 }
1814 
1815 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1816   VisitExplicitCastExpr(S);
1817 }
1818 
1819 void
1820 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1821   VisitCXXConstructExpr(S);
1822 }
1823 
1824 void
1825 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1826   VisitExpr(S);
1827   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1828                                  CEnd = S->explicit_capture_end();
1829        C != CEnd; ++C) {
1830     if (C->capturesVLAType())
1831       continue;
1832 
1833     ID.AddInteger(C->getCaptureKind());
1834     switch (C->getCaptureKind()) {
1835     case LCK_StarThis:
1836     case LCK_This:
1837       break;
1838     case LCK_ByRef:
1839     case LCK_ByCopy:
1840       VisitDecl(C->getCapturedVar());
1841       ID.AddBoolean(C->isPackExpansion());
1842       break;
1843     case LCK_VLAType:
1844       llvm_unreachable("VLA type in explicit captures.");
1845     }
1846   }
1847   // Note: If we actually needed to be able to match lambda
1848   // expressions, we would have to consider parameters and return type
1849   // here, among other things.
1850   VisitStmt(S->getBody());
1851 }
1852 
1853 void
1854 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1855   VisitExpr(S);
1856 }
1857 
1858 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1859   VisitExpr(S);
1860   ID.AddBoolean(S->isGlobalDelete());
1861   ID.AddBoolean(S->isArrayForm());
1862   VisitDecl(S->getOperatorDelete());
1863 }
1864 
1865 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1866   VisitExpr(S);
1867   VisitType(S->getAllocatedType());
1868   VisitDecl(S->getOperatorNew());
1869   VisitDecl(S->getOperatorDelete());
1870   ID.AddBoolean(S->isArray());
1871   ID.AddInteger(S->getNumPlacementArgs());
1872   ID.AddBoolean(S->isGlobalNew());
1873   ID.AddBoolean(S->isParenTypeId());
1874   ID.AddInteger(S->getInitializationStyle());
1875 }
1876 
1877 void
1878 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1879   VisitExpr(S);
1880   ID.AddBoolean(S->isArrow());
1881   VisitNestedNameSpecifier(S->getQualifier());
1882   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1883   if (S->getScopeTypeInfo())
1884     VisitType(S->getScopeTypeInfo()->getType());
1885   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1886   if (S->getDestroyedTypeInfo())
1887     VisitType(S->getDestroyedType());
1888   else
1889     VisitIdentifierInfo(S->getDestroyedTypeIdentifier());
1890 }
1891 
1892 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1893   VisitExpr(S);
1894   VisitNestedNameSpecifier(S->getQualifier());
1895   VisitName(S->getName(), /*TreatAsDecl*/ true);
1896   ID.AddBoolean(S->hasExplicitTemplateArgs());
1897   if (S->hasExplicitTemplateArgs())
1898     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1899 }
1900 
1901 void
1902 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1903   VisitOverloadExpr(S);
1904 }
1905 
1906 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1907   VisitExpr(S);
1908   ID.AddInteger(S->getTrait());
1909   ID.AddInteger(S->getNumArgs());
1910   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1911     VisitType(S->getArg(I)->getType());
1912 }
1913 
1914 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1915   VisitExpr(S);
1916   ID.AddInteger(S->getTrait());
1917   VisitType(S->getQueriedType());
1918 }
1919 
1920 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1921   VisitExpr(S);
1922   ID.AddInteger(S->getTrait());
1923   VisitExpr(S->getQueriedExpression());
1924 }
1925 
1926 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1927     const DependentScopeDeclRefExpr *S) {
1928   VisitExpr(S);
1929   VisitName(S->getDeclName());
1930   VisitNestedNameSpecifier(S->getQualifier());
1931   ID.AddBoolean(S->hasExplicitTemplateArgs());
1932   if (S->hasExplicitTemplateArgs())
1933     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1934 }
1935 
1936 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1937   VisitExpr(S);
1938 }
1939 
1940 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1941     const CXXUnresolvedConstructExpr *S) {
1942   VisitExpr(S);
1943   VisitType(S->getTypeAsWritten());
1944   ID.AddInteger(S->isListInitialization());
1945 }
1946 
1947 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1948     const CXXDependentScopeMemberExpr *S) {
1949   ID.AddBoolean(S->isImplicitAccess());
1950   if (!S->isImplicitAccess()) {
1951     VisitExpr(S);
1952     ID.AddBoolean(S->isArrow());
1953   }
1954   VisitNestedNameSpecifier(S->getQualifier());
1955   VisitName(S->getMember());
1956   ID.AddBoolean(S->hasExplicitTemplateArgs());
1957   if (S->hasExplicitTemplateArgs())
1958     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1959 }
1960 
1961 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1962   ID.AddBoolean(S->isImplicitAccess());
1963   if (!S->isImplicitAccess()) {
1964     VisitExpr(S);
1965     ID.AddBoolean(S->isArrow());
1966   }
1967   VisitNestedNameSpecifier(S->getQualifier());
1968   VisitName(S->getMemberName());
1969   ID.AddBoolean(S->hasExplicitTemplateArgs());
1970   if (S->hasExplicitTemplateArgs())
1971     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1972 }
1973 
1974 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1975   VisitExpr(S);
1976 }
1977 
1978 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1979   VisitExpr(S);
1980 }
1981 
1982 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1983   VisitExpr(S);
1984   VisitDecl(S->getPack());
1985   if (S->isPartiallySubstituted()) {
1986     auto Args = S->getPartialArguments();
1987     ID.AddInteger(Args.size());
1988     for (const auto &TA : Args)
1989       VisitTemplateArgument(TA);
1990   } else {
1991     ID.AddInteger(0);
1992   }
1993 }
1994 
1995 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1996     const SubstNonTypeTemplateParmPackExpr *S) {
1997   VisitExpr(S);
1998   VisitDecl(S->getParameterPack());
1999   VisitTemplateArgument(S->getArgumentPack());
2000 }
2001 
2002 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
2003     const SubstNonTypeTemplateParmExpr *E) {
2004   // Profile exactly as the replacement expression.
2005   Visit(E->getReplacement());
2006 }
2007 
2008 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
2009   VisitExpr(S);
2010   VisitDecl(S->getParameterPack());
2011   ID.AddInteger(S->getNumExpansions());
2012   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
2013     VisitDecl(*I);
2014 }
2015 
2016 void StmtProfiler::VisitMaterializeTemporaryExpr(
2017                                            const MaterializeTemporaryExpr *S) {
2018   VisitExpr(S);
2019 }
2020 
2021 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
2022   VisitExpr(S);
2023   ID.AddInteger(S->getOperator());
2024 }
2025 
2026 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
2027   VisitStmt(S);
2028 }
2029 
2030 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
2031   VisitStmt(S);
2032 }
2033 
2034 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
2035   VisitExpr(S);
2036 }
2037 
2038 void StmtProfiler::VisitDependentCoawaitExpr(const DependentCoawaitExpr *S) {
2039   VisitExpr(S);
2040 }
2041 
2042 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
2043   VisitExpr(S);
2044 }
2045 
2046 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
2047   VisitExpr(E);
2048 }
2049 
2050 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
2051   VisitExpr(E);
2052 }
2053 
2054 void StmtProfiler::VisitSourceLocExpr(const SourceLocExpr *E) {
2055   VisitExpr(E);
2056 }
2057 
2058 void StmtProfiler::VisitRecoveryExpr(const RecoveryExpr *E) { VisitExpr(E); }
2059 
2060 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
2061   VisitExpr(S);
2062 }
2063 
2064 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
2065   VisitExpr(E);
2066 }
2067 
2068 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
2069   VisitExpr(E);
2070 }
2071 
2072 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
2073   VisitExpr(E);
2074 }
2075 
2076 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
2077   VisitExpr(S);
2078   VisitType(S->getEncodedType());
2079 }
2080 
2081 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
2082   VisitExpr(S);
2083   VisitName(S->getSelector());
2084 }
2085 
2086 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
2087   VisitExpr(S);
2088   VisitDecl(S->getProtocol());
2089 }
2090 
2091 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
2092   VisitExpr(S);
2093   VisitDecl(S->getDecl());
2094   ID.AddBoolean(S->isArrow());
2095   ID.AddBoolean(S->isFreeIvar());
2096 }
2097 
2098 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
2099   VisitExpr(S);
2100   if (S->isImplicitProperty()) {
2101     VisitDecl(S->getImplicitPropertyGetter());
2102     VisitDecl(S->getImplicitPropertySetter());
2103   } else {
2104     VisitDecl(S->getExplicitProperty());
2105   }
2106   if (S->isSuperReceiver()) {
2107     ID.AddBoolean(S->isSuperReceiver());
2108     VisitType(S->getSuperReceiverType());
2109   }
2110 }
2111 
2112 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
2113   VisitExpr(S);
2114   VisitDecl(S->getAtIndexMethodDecl());
2115   VisitDecl(S->setAtIndexMethodDecl());
2116 }
2117 
2118 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
2119   VisitExpr(S);
2120   VisitName(S->getSelector());
2121   VisitDecl(S->getMethodDecl());
2122 }
2123 
2124 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
2125   VisitExpr(S);
2126   ID.AddBoolean(S->isArrow());
2127 }
2128 
2129 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
2130   VisitExpr(S);
2131   ID.AddBoolean(S->getValue());
2132 }
2133 
2134 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
2135     const ObjCIndirectCopyRestoreExpr *S) {
2136   VisitExpr(S);
2137   ID.AddBoolean(S->shouldCopy());
2138 }
2139 
2140 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
2141   VisitExplicitCastExpr(S);
2142   ID.AddBoolean(S->getBridgeKind());
2143 }
2144 
2145 void StmtProfiler::VisitObjCAvailabilityCheckExpr(
2146     const ObjCAvailabilityCheckExpr *S) {
2147   VisitExpr(S);
2148 }
2149 
2150 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
2151                                           unsigned NumArgs) {
2152   ID.AddInteger(NumArgs);
2153   for (unsigned I = 0; I != NumArgs; ++I)
2154     VisitTemplateArgument(Args[I].getArgument());
2155 }
2156 
2157 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
2158   // Mostly repetitive with TemplateArgument::Profile!
2159   ID.AddInteger(Arg.getKind());
2160   switch (Arg.getKind()) {
2161   case TemplateArgument::Null:
2162     break;
2163 
2164   case TemplateArgument::Type:
2165     VisitType(Arg.getAsType());
2166     break;
2167 
2168   case TemplateArgument::Template:
2169   case TemplateArgument::TemplateExpansion:
2170     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
2171     break;
2172 
2173   case TemplateArgument::Declaration:
2174     VisitDecl(Arg.getAsDecl());
2175     break;
2176 
2177   case TemplateArgument::NullPtr:
2178     VisitType(Arg.getNullPtrType());
2179     break;
2180 
2181   case TemplateArgument::Integral:
2182     Arg.getAsIntegral().Profile(ID);
2183     VisitType(Arg.getIntegralType());
2184     break;
2185 
2186   case TemplateArgument::Expression:
2187     Visit(Arg.getAsExpr());
2188     break;
2189 
2190   case TemplateArgument::Pack:
2191     for (const auto &P : Arg.pack_elements())
2192       VisitTemplateArgument(P);
2193     break;
2194   }
2195 }
2196 
2197 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
2198                    bool Canonical) const {
2199   StmtProfilerWithPointers Profiler(ID, Context, Canonical);
2200   Profiler.Visit(this);
2201 }
2202 
2203 void Stmt::ProcessODRHash(llvm::FoldingSetNodeID &ID,
2204                           class ODRHash &Hash) const {
2205   StmtProfilerWithoutPointers Profiler(ID, Hash);
2206   Profiler.Visit(this);
2207 }
2208