xref: /freebsd/contrib/llvm-project/clang/lib/AST/StmtProfile.cpp (revision a7dea1671b87c07d2d266f836bfa8b58efc7c134) 
1 //===---- StmtProfile.cpp - Profile implementation for Stmt ASTs ----------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements the Stmt::Profile method, which builds a unique bit
10 // representation that identifies a statement/expression.
11 //
12 //===----------------------------------------------------------------------===//
13 #include "clang/AST/ASTContext.h"
14 #include "clang/AST/DeclCXX.h"
15 #include "clang/AST/DeclObjC.h"
16 #include "clang/AST/DeclTemplate.h"
17 #include "clang/AST/Expr.h"
18 #include "clang/AST/ExprCXX.h"
19 #include "clang/AST/ExprObjC.h"
20 #include "clang/AST/ExprOpenMP.h"
21 #include "clang/AST/ODRHash.h"
22 #include "clang/AST/StmtVisitor.h"
23 #include "llvm/ADT/FoldingSet.h"
24 using namespace clang;
25 
26 namespace {
27   class StmtProfiler : public ConstStmtVisitor<StmtProfiler> {
28   protected:
29     llvm::FoldingSetNodeID &ID;
30     bool Canonical;
31 
32   public:
33     StmtProfiler(llvm::FoldingSetNodeID &ID, bool Canonical)
34         : ID(ID), Canonical(Canonical) {}
35 
36     virtual ~StmtProfiler() {}
37 
38     void VisitStmt(const Stmt *S);
39 
40     virtual void HandleStmtClass(Stmt::StmtClass SC) = 0;
41 
42 #define STMT(Node, Base) void Visit##Node(const Node *S);
43 #include "clang/AST/StmtNodes.inc"
44 
45     /// Visit a declaration that is referenced within an expression
46     /// or statement.
47     virtual void VisitDecl(const Decl *D) = 0;
48 
49     /// Visit a type that is referenced within an expression or
50     /// statement.
51     virtual void VisitType(QualType T) = 0;
52 
53     /// Visit a name that occurs within an expression or statement.
54     virtual void VisitName(DeclarationName Name, bool TreatAsDecl = false) = 0;
55 
56     /// Visit identifiers that are not in Decl's or Type's.
57     virtual void VisitIdentifierInfo(IdentifierInfo *II) = 0;
58 
59     /// Visit a nested-name-specifier that occurs within an expression
60     /// or statement.
61     virtual void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) = 0;
62 
63     /// Visit a template name that occurs within an expression or
64     /// statement.
65     virtual void VisitTemplateName(TemplateName Name) = 0;
66 
67     /// Visit template arguments that occur within an expression or
68     /// statement.
69     void VisitTemplateArguments(const TemplateArgumentLoc *Args,
70                                 unsigned NumArgs);
71 
72     /// Visit a single template argument.
73     void VisitTemplateArgument(const TemplateArgument &Arg);
74   };
75 
76   class StmtProfilerWithPointers : public StmtProfiler {
77     const ASTContext &Context;
78 
79   public:
80     StmtProfilerWithPointers(llvm::FoldingSetNodeID &ID,
81                              const ASTContext &Context, bool Canonical)
82         : StmtProfiler(ID, Canonical), Context(Context) {}
83   private:
84     void HandleStmtClass(Stmt::StmtClass SC) override {
85       ID.AddInteger(SC);
86     }
87 
88     void VisitDecl(const Decl *D) override {
89       ID.AddInteger(D ? D->getKind() : 0);
90 
91       if (Canonical && D) {
92         if (const NonTypeTemplateParmDecl *NTTP =
93                 dyn_cast<NonTypeTemplateParmDecl>(D)) {
94           ID.AddInteger(NTTP->getDepth());
95           ID.AddInteger(NTTP->getIndex());
96           ID.AddBoolean(NTTP->isParameterPack());
97           VisitType(NTTP->getType());
98           return;
99         }
100 
101         if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
102           // The Itanium C++ ABI uses the type, scope depth, and scope
103           // index of a parameter when mangling expressions that involve
104           // function parameters, so we will use the parameter's type for
105           // establishing function parameter identity. That way, our
106           // definition of "equivalent" (per C++ [temp.over.link]) is at
107           // least as strong as the definition of "equivalent" used for
108           // name mangling.
109           VisitType(Parm->getType());
110           ID.AddInteger(Parm->getFunctionScopeDepth());
111           ID.AddInteger(Parm->getFunctionScopeIndex());
112           return;
113         }
114 
115         if (const TemplateTypeParmDecl *TTP =
116                 dyn_cast<TemplateTypeParmDecl>(D)) {
117           ID.AddInteger(TTP->getDepth());
118           ID.AddInteger(TTP->getIndex());
119           ID.AddBoolean(TTP->isParameterPack());
120           return;
121         }
122 
123         if (const TemplateTemplateParmDecl *TTP =
124                 dyn_cast<TemplateTemplateParmDecl>(D)) {
125           ID.AddInteger(TTP->getDepth());
126           ID.AddInteger(TTP->getIndex());
127           ID.AddBoolean(TTP->isParameterPack());
128           return;
129         }
130       }
131 
132       ID.AddPointer(D ? D->getCanonicalDecl() : nullptr);
133     }
134 
135     void VisitType(QualType T) override {
136       if (Canonical && !T.isNull())
137         T = Context.getCanonicalType(T);
138 
139       ID.AddPointer(T.getAsOpaquePtr());
140     }
141 
142     void VisitName(DeclarationName Name, bool /*TreatAsDecl*/) override {
143       ID.AddPointer(Name.getAsOpaquePtr());
144     }
145 
146     void VisitIdentifierInfo(IdentifierInfo *II) override {
147       ID.AddPointer(II);
148     }
149 
150     void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) override {
151       if (Canonical)
152         NNS = Context.getCanonicalNestedNameSpecifier(NNS);
153       ID.AddPointer(NNS);
154     }
155 
156     void VisitTemplateName(TemplateName Name) override {
157       if (Canonical)
158         Name = Context.getCanonicalTemplateName(Name);
159 
160       Name.Profile(ID);
161     }
162   };
163 
164   class StmtProfilerWithoutPointers : public StmtProfiler {
165     ODRHash &Hash;
166   public:
167     StmtProfilerWithoutPointers(llvm::FoldingSetNodeID &ID, ODRHash &Hash)
168         : StmtProfiler(ID, false), Hash(Hash) {}
169 
170   private:
171     void HandleStmtClass(Stmt::StmtClass SC) override {
172       if (SC == Stmt::UnresolvedLookupExprClass) {
173         // Pretend that the name looked up is a Decl due to how templates
174         // handle some Decl lookups.
175         ID.AddInteger(Stmt::DeclRefExprClass);
176       } else {
177         ID.AddInteger(SC);
178       }
179     }
180 
181     void VisitType(QualType T) override {
182       Hash.AddQualType(T);
183     }
184 
185     void VisitName(DeclarationName Name, bool TreatAsDecl) override {
186       if (TreatAsDecl) {
187         // A Decl can be null, so each Decl is preceded by a boolean to
188         // store its nullness.  Add a boolean here to match.
189         ID.AddBoolean(true);
190       }
191       Hash.AddDeclarationName(Name, TreatAsDecl);
192     }
193     void VisitIdentifierInfo(IdentifierInfo *II) override {
194       ID.AddBoolean(II);
195       if (II) {
196         Hash.AddIdentifierInfo(II);
197       }
198     }
199     void VisitDecl(const Decl *D) override {
200       ID.AddBoolean(D);
201       if (D) {
202         Hash.AddDecl(D);
203       }
204     }
205     void VisitTemplateName(TemplateName Name) override {
206       Hash.AddTemplateName(Name);
207     }
208     void VisitNestedNameSpecifier(NestedNameSpecifier *NNS) override {
209       ID.AddBoolean(NNS);
210       if (NNS) {
211         Hash.AddNestedNameSpecifier(NNS);
212       }
213     }
214   };
215 }
216 
217 void StmtProfiler::VisitStmt(const Stmt *S) {
218   assert(S && "Requires non-null Stmt pointer");
219 
220   HandleStmtClass(S->getStmtClass());
221 
222   for (const Stmt *SubStmt : S->children()) {
223     if (SubStmt)
224       Visit(SubStmt);
225     else
226       ID.AddInteger(0);
227   }
228 }
229 
230 void StmtProfiler::VisitDeclStmt(const DeclStmt *S) {
231   VisitStmt(S);
232   for (const auto *D : S->decls())
233     VisitDecl(D);
234 }
235 
236 void StmtProfiler::VisitNullStmt(const NullStmt *S) {
237   VisitStmt(S);
238 }
239 
240 void StmtProfiler::VisitCompoundStmt(const CompoundStmt *S) {
241   VisitStmt(S);
242 }
243 
244 void StmtProfiler::VisitCaseStmt(const CaseStmt *S) {
245   VisitStmt(S);
246 }
247 
248 void StmtProfiler::VisitDefaultStmt(const DefaultStmt *S) {
249   VisitStmt(S);
250 }
251 
252 void StmtProfiler::VisitLabelStmt(const LabelStmt *S) {
253   VisitStmt(S);
254   VisitDecl(S->getDecl());
255 }
256 
257 void StmtProfiler::VisitAttributedStmt(const AttributedStmt *S) {
258   VisitStmt(S);
259   // TODO: maybe visit attributes?
260 }
261 
262 void StmtProfiler::VisitIfStmt(const IfStmt *S) {
263   VisitStmt(S);
264   VisitDecl(S->getConditionVariable());
265 }
266 
267 void StmtProfiler::VisitSwitchStmt(const SwitchStmt *S) {
268   VisitStmt(S);
269   VisitDecl(S->getConditionVariable());
270 }
271 
272 void StmtProfiler::VisitWhileStmt(const WhileStmt *S) {
273   VisitStmt(S);
274   VisitDecl(S->getConditionVariable());
275 }
276 
277 void StmtProfiler::VisitDoStmt(const DoStmt *S) {
278   VisitStmt(S);
279 }
280 
281 void StmtProfiler::VisitForStmt(const ForStmt *S) {
282   VisitStmt(S);
283 }
284 
285 void StmtProfiler::VisitGotoStmt(const GotoStmt *S) {
286   VisitStmt(S);
287   VisitDecl(S->getLabel());
288 }
289 
290 void StmtProfiler::VisitIndirectGotoStmt(const IndirectGotoStmt *S) {
291   VisitStmt(S);
292 }
293 
294 void StmtProfiler::VisitContinueStmt(const ContinueStmt *S) {
295   VisitStmt(S);
296 }
297 
298 void StmtProfiler::VisitBreakStmt(const BreakStmt *S) {
299   VisitStmt(S);
300 }
301 
302 void StmtProfiler::VisitReturnStmt(const ReturnStmt *S) {
303   VisitStmt(S);
304 }
305 
306 void StmtProfiler::VisitGCCAsmStmt(const GCCAsmStmt *S) {
307   VisitStmt(S);
308   ID.AddBoolean(S->isVolatile());
309   ID.AddBoolean(S->isSimple());
310   VisitStringLiteral(S->getAsmString());
311   ID.AddInteger(S->getNumOutputs());
312   for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
313     ID.AddString(S->getOutputName(I));
314     VisitStringLiteral(S->getOutputConstraintLiteral(I));
315   }
316   ID.AddInteger(S->getNumInputs());
317   for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
318     ID.AddString(S->getInputName(I));
319     VisitStringLiteral(S->getInputConstraintLiteral(I));
320   }
321   ID.AddInteger(S->getNumClobbers());
322   for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
323     VisitStringLiteral(S->getClobberStringLiteral(I));
324   ID.AddInteger(S->getNumLabels());
325   for (auto *L : S->labels())
326     VisitDecl(L->getLabel());
327 }
328 
329 void StmtProfiler::VisitMSAsmStmt(const MSAsmStmt *S) {
330   // FIXME: Implement MS style inline asm statement profiler.
331   VisitStmt(S);
332 }
333 
334 void StmtProfiler::VisitCXXCatchStmt(const CXXCatchStmt *S) {
335   VisitStmt(S);
336   VisitType(S->getCaughtType());
337 }
338 
339 void StmtProfiler::VisitCXXTryStmt(const CXXTryStmt *S) {
340   VisitStmt(S);
341 }
342 
343 void StmtProfiler::VisitCXXForRangeStmt(const CXXForRangeStmt *S) {
344   VisitStmt(S);
345 }
346 
347 void StmtProfiler::VisitMSDependentExistsStmt(const MSDependentExistsStmt *S) {
348   VisitStmt(S);
349   ID.AddBoolean(S->isIfExists());
350   VisitNestedNameSpecifier(S->getQualifierLoc().getNestedNameSpecifier());
351   VisitName(S->getNameInfo().getName());
352 }
353 
354 void StmtProfiler::VisitSEHTryStmt(const SEHTryStmt *S) {
355   VisitStmt(S);
356 }
357 
358 void StmtProfiler::VisitSEHFinallyStmt(const SEHFinallyStmt *S) {
359   VisitStmt(S);
360 }
361 
362 void StmtProfiler::VisitSEHExceptStmt(const SEHExceptStmt *S) {
363   VisitStmt(S);
364 }
365 
366 void StmtProfiler::VisitSEHLeaveStmt(const SEHLeaveStmt *S) {
367   VisitStmt(S);
368 }
369 
370 void StmtProfiler::VisitCapturedStmt(const CapturedStmt *S) {
371   VisitStmt(S);
372 }
373 
374 void StmtProfiler::VisitObjCForCollectionStmt(const ObjCForCollectionStmt *S) {
375   VisitStmt(S);
376 }
377 
378 void StmtProfiler::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *S) {
379   VisitStmt(S);
380   ID.AddBoolean(S->hasEllipsis());
381   if (S->getCatchParamDecl())
382     VisitType(S->getCatchParamDecl()->getType());
383 }
384 
385 void StmtProfiler::VisitObjCAtFinallyStmt(const ObjCAtFinallyStmt *S) {
386   VisitStmt(S);
387 }
388 
389 void StmtProfiler::VisitObjCAtTryStmt(const ObjCAtTryStmt *S) {
390   VisitStmt(S);
391 }
392 
393 void
394 StmtProfiler::VisitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt *S) {
395   VisitStmt(S);
396 }
397 
398 void StmtProfiler::VisitObjCAtThrowStmt(const ObjCAtThrowStmt *S) {
399   VisitStmt(S);
400 }
401 
402 void
403 StmtProfiler::VisitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt *S) {
404   VisitStmt(S);
405 }
406 
407 namespace {
408 class OMPClauseProfiler : public ConstOMPClauseVisitor<OMPClauseProfiler> {
409   StmtProfiler *Profiler;
410   /// Process clauses with list of variables.
411   template <typename T>
412   void VisitOMPClauseList(T *Node);
413 
414 public:
415   OMPClauseProfiler(StmtProfiler *P) : Profiler(P) { }
416 #define OPENMP_CLAUSE(Name, Class)                                             \
417   void Visit##Class(const Class *C);
418 #include "clang/Basic/OpenMPKinds.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::VisitOMPDefaultClause(const OMPDefaultClause *C) { }
475 
476 void OMPClauseProfiler::VisitOMPProcBindClause(const OMPProcBindClause *C) { }
477 
478 void OMPClauseProfiler::VisitOMPUnifiedAddressClause(
479     const OMPUnifiedAddressClause *C) {}
480 
481 void OMPClauseProfiler::VisitOMPUnifiedSharedMemoryClause(
482     const OMPUnifiedSharedMemoryClause *C) {}
483 
484 void OMPClauseProfiler::VisitOMPReverseOffloadClause(
485     const OMPReverseOffloadClause *C) {}
486 
487 void OMPClauseProfiler::VisitOMPDynamicAllocatorsClause(
488     const OMPDynamicAllocatorsClause *C) {}
489 
490 void OMPClauseProfiler::VisitOMPAtomicDefaultMemOrderClause(
491     const OMPAtomicDefaultMemOrderClause *C) {}
492 
493 void OMPClauseProfiler::VisitOMPScheduleClause(const OMPScheduleClause *C) {
494   VistOMPClauseWithPreInit(C);
495   if (auto *S = C->getChunkSize())
496     Profiler->VisitStmt(S);
497 }
498 
499 void OMPClauseProfiler::VisitOMPOrderedClause(const OMPOrderedClause *C) {
500   if (auto *Num = C->getNumForLoops())
501     Profiler->VisitStmt(Num);
502 }
503 
504 void OMPClauseProfiler::VisitOMPNowaitClause(const OMPNowaitClause *) {}
505 
506 void OMPClauseProfiler::VisitOMPUntiedClause(const OMPUntiedClause *) {}
507 
508 void OMPClauseProfiler::VisitOMPMergeableClause(const OMPMergeableClause *) {}
509 
510 void OMPClauseProfiler::VisitOMPReadClause(const OMPReadClause *) {}
511 
512 void OMPClauseProfiler::VisitOMPWriteClause(const OMPWriteClause *) {}
513 
514 void OMPClauseProfiler::VisitOMPUpdateClause(const OMPUpdateClause *) {}
515 
516 void OMPClauseProfiler::VisitOMPCaptureClause(const OMPCaptureClause *) {}
517 
518 void OMPClauseProfiler::VisitOMPSeqCstClause(const OMPSeqCstClause *) {}
519 
520 void OMPClauseProfiler::VisitOMPThreadsClause(const OMPThreadsClause *) {}
521 
522 void OMPClauseProfiler::VisitOMPSIMDClause(const OMPSIMDClause *) {}
523 
524 void OMPClauseProfiler::VisitOMPNogroupClause(const OMPNogroupClause *) {}
525 
526 template<typename T>
527 void OMPClauseProfiler::VisitOMPClauseList(T *Node) {
528   for (auto *E : Node->varlists()) {
529     if (E)
530       Profiler->VisitStmt(E);
531   }
532 }
533 
534 void OMPClauseProfiler::VisitOMPPrivateClause(const OMPPrivateClause *C) {
535   VisitOMPClauseList(C);
536   for (auto *E : C->private_copies()) {
537     if (E)
538       Profiler->VisitStmt(E);
539   }
540 }
541 void
542 OMPClauseProfiler::VisitOMPFirstprivateClause(const OMPFirstprivateClause *C) {
543   VisitOMPClauseList(C);
544   VistOMPClauseWithPreInit(C);
545   for (auto *E : C->private_copies()) {
546     if (E)
547       Profiler->VisitStmt(E);
548   }
549   for (auto *E : C->inits()) {
550     if (E)
551       Profiler->VisitStmt(E);
552   }
553 }
554 void
555 OMPClauseProfiler::VisitOMPLastprivateClause(const OMPLastprivateClause *C) {
556   VisitOMPClauseList(C);
557   VistOMPClauseWithPostUpdate(C);
558   for (auto *E : C->source_exprs()) {
559     if (E)
560       Profiler->VisitStmt(E);
561   }
562   for (auto *E : C->destination_exprs()) {
563     if (E)
564       Profiler->VisitStmt(E);
565   }
566   for (auto *E : C->assignment_ops()) {
567     if (E)
568       Profiler->VisitStmt(E);
569   }
570 }
571 void OMPClauseProfiler::VisitOMPSharedClause(const OMPSharedClause *C) {
572   VisitOMPClauseList(C);
573 }
574 void OMPClauseProfiler::VisitOMPReductionClause(
575                                          const OMPReductionClause *C) {
576   Profiler->VisitNestedNameSpecifier(
577       C->getQualifierLoc().getNestedNameSpecifier());
578   Profiler->VisitName(C->getNameInfo().getName());
579   VisitOMPClauseList(C);
580   VistOMPClauseWithPostUpdate(C);
581   for (auto *E : C->privates()) {
582     if (E)
583       Profiler->VisitStmt(E);
584   }
585   for (auto *E : C->lhs_exprs()) {
586     if (E)
587       Profiler->VisitStmt(E);
588   }
589   for (auto *E : C->rhs_exprs()) {
590     if (E)
591       Profiler->VisitStmt(E);
592   }
593   for (auto *E : C->reduction_ops()) {
594     if (E)
595       Profiler->VisitStmt(E);
596   }
597 }
598 void OMPClauseProfiler::VisitOMPTaskReductionClause(
599     const OMPTaskReductionClause *C) {
600   Profiler->VisitNestedNameSpecifier(
601       C->getQualifierLoc().getNestedNameSpecifier());
602   Profiler->VisitName(C->getNameInfo().getName());
603   VisitOMPClauseList(C);
604   VistOMPClauseWithPostUpdate(C);
605   for (auto *E : C->privates()) {
606     if (E)
607       Profiler->VisitStmt(E);
608   }
609   for (auto *E : C->lhs_exprs()) {
610     if (E)
611       Profiler->VisitStmt(E);
612   }
613   for (auto *E : C->rhs_exprs()) {
614     if (E)
615       Profiler->VisitStmt(E);
616   }
617   for (auto *E : C->reduction_ops()) {
618     if (E)
619       Profiler->VisitStmt(E);
620   }
621 }
622 void OMPClauseProfiler::VisitOMPInReductionClause(
623     const OMPInReductionClause *C) {
624   Profiler->VisitNestedNameSpecifier(
625       C->getQualifierLoc().getNestedNameSpecifier());
626   Profiler->VisitName(C->getNameInfo().getName());
627   VisitOMPClauseList(C);
628   VistOMPClauseWithPostUpdate(C);
629   for (auto *E : C->privates()) {
630     if (E)
631       Profiler->VisitStmt(E);
632   }
633   for (auto *E : C->lhs_exprs()) {
634     if (E)
635       Profiler->VisitStmt(E);
636   }
637   for (auto *E : C->rhs_exprs()) {
638     if (E)
639       Profiler->VisitStmt(E);
640   }
641   for (auto *E : C->reduction_ops()) {
642     if (E)
643       Profiler->VisitStmt(E);
644   }
645   for (auto *E : C->taskgroup_descriptors()) {
646     if (E)
647       Profiler->VisitStmt(E);
648   }
649 }
650 void OMPClauseProfiler::VisitOMPLinearClause(const OMPLinearClause *C) {
651   VisitOMPClauseList(C);
652   VistOMPClauseWithPostUpdate(C);
653   for (auto *E : C->privates()) {
654     if (E)
655       Profiler->VisitStmt(E);
656   }
657   for (auto *E : C->inits()) {
658     if (E)
659       Profiler->VisitStmt(E);
660   }
661   for (auto *E : C->updates()) {
662     if (E)
663       Profiler->VisitStmt(E);
664   }
665   for (auto *E : C->finals()) {
666     if (E)
667       Profiler->VisitStmt(E);
668   }
669   if (C->getStep())
670     Profiler->VisitStmt(C->getStep());
671   if (C->getCalcStep())
672     Profiler->VisitStmt(C->getCalcStep());
673 }
674 void OMPClauseProfiler::VisitOMPAlignedClause(const OMPAlignedClause *C) {
675   VisitOMPClauseList(C);
676   if (C->getAlignment())
677     Profiler->VisitStmt(C->getAlignment());
678 }
679 void OMPClauseProfiler::VisitOMPCopyinClause(const OMPCopyinClause *C) {
680   VisitOMPClauseList(C);
681   for (auto *E : C->source_exprs()) {
682     if (E)
683       Profiler->VisitStmt(E);
684   }
685   for (auto *E : C->destination_exprs()) {
686     if (E)
687       Profiler->VisitStmt(E);
688   }
689   for (auto *E : C->assignment_ops()) {
690     if (E)
691       Profiler->VisitStmt(E);
692   }
693 }
694 void
695 OMPClauseProfiler::VisitOMPCopyprivateClause(const OMPCopyprivateClause *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 OMPClauseProfiler::VisitOMPFlushClause(const OMPFlushClause *C) {
711   VisitOMPClauseList(C);
712 }
713 void OMPClauseProfiler::VisitOMPDependClause(const OMPDependClause *C) {
714   VisitOMPClauseList(C);
715 }
716 void OMPClauseProfiler::VisitOMPDeviceClause(const OMPDeviceClause *C) {
717   if (C->getDevice())
718     Profiler->VisitStmt(C->getDevice());
719 }
720 void OMPClauseProfiler::VisitOMPMapClause(const OMPMapClause *C) {
721   VisitOMPClauseList(C);
722 }
723 void OMPClauseProfiler::VisitOMPAllocateClause(const OMPAllocateClause *C) {
724   if (Expr *Allocator = C->getAllocator())
725     Profiler->VisitStmt(Allocator);
726   VisitOMPClauseList(C);
727 }
728 void OMPClauseProfiler::VisitOMPNumTeamsClause(const OMPNumTeamsClause *C) {
729   VistOMPClauseWithPreInit(C);
730   if (C->getNumTeams())
731     Profiler->VisitStmt(C->getNumTeams());
732 }
733 void OMPClauseProfiler::VisitOMPThreadLimitClause(
734     const OMPThreadLimitClause *C) {
735   VistOMPClauseWithPreInit(C);
736   if (C->getThreadLimit())
737     Profiler->VisitStmt(C->getThreadLimit());
738 }
739 void OMPClauseProfiler::VisitOMPPriorityClause(const OMPPriorityClause *C) {
740   VistOMPClauseWithPreInit(C);
741   if (C->getPriority())
742     Profiler->VisitStmt(C->getPriority());
743 }
744 void OMPClauseProfiler::VisitOMPGrainsizeClause(const OMPGrainsizeClause *C) {
745   VistOMPClauseWithPreInit(C);
746   if (C->getGrainsize())
747     Profiler->VisitStmt(C->getGrainsize());
748 }
749 void OMPClauseProfiler::VisitOMPNumTasksClause(const OMPNumTasksClause *C) {
750   VistOMPClauseWithPreInit(C);
751   if (C->getNumTasks())
752     Profiler->VisitStmt(C->getNumTasks());
753 }
754 void OMPClauseProfiler::VisitOMPHintClause(const OMPHintClause *C) {
755   if (C->getHint())
756     Profiler->VisitStmt(C->getHint());
757 }
758 void OMPClauseProfiler::VisitOMPToClause(const OMPToClause *C) {
759   VisitOMPClauseList(C);
760 }
761 void OMPClauseProfiler::VisitOMPFromClause(const OMPFromClause *C) {
762   VisitOMPClauseList(C);
763 }
764 void OMPClauseProfiler::VisitOMPUseDevicePtrClause(
765     const OMPUseDevicePtrClause *C) {
766   VisitOMPClauseList(C);
767 }
768 void OMPClauseProfiler::VisitOMPIsDevicePtrClause(
769     const OMPIsDevicePtrClause *C) {
770   VisitOMPClauseList(C);
771 }
772 }
773 
774 void
775 StmtProfiler::VisitOMPExecutableDirective(const OMPExecutableDirective *S) {
776   VisitStmt(S);
777   OMPClauseProfiler P(this);
778   ArrayRef<OMPClause *> Clauses = S->clauses();
779   for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E = Clauses.end();
780        I != E; ++I)
781     if (*I)
782       P.Visit(*I);
783 }
784 
785 void StmtProfiler::VisitOMPLoopDirective(const OMPLoopDirective *S) {
786   VisitOMPExecutableDirective(S);
787 }
788 
789 void StmtProfiler::VisitOMPParallelDirective(const OMPParallelDirective *S) {
790   VisitOMPExecutableDirective(S);
791 }
792 
793 void StmtProfiler::VisitOMPSimdDirective(const OMPSimdDirective *S) {
794   VisitOMPLoopDirective(S);
795 }
796 
797 void StmtProfiler::VisitOMPForDirective(const OMPForDirective *S) {
798   VisitOMPLoopDirective(S);
799 }
800 
801 void StmtProfiler::VisitOMPForSimdDirective(const OMPForSimdDirective *S) {
802   VisitOMPLoopDirective(S);
803 }
804 
805 void StmtProfiler::VisitOMPSectionsDirective(const OMPSectionsDirective *S) {
806   VisitOMPExecutableDirective(S);
807 }
808 
809 void StmtProfiler::VisitOMPSectionDirective(const OMPSectionDirective *S) {
810   VisitOMPExecutableDirective(S);
811 }
812 
813 void StmtProfiler::VisitOMPSingleDirective(const OMPSingleDirective *S) {
814   VisitOMPExecutableDirective(S);
815 }
816 
817 void StmtProfiler::VisitOMPMasterDirective(const OMPMasterDirective *S) {
818   VisitOMPExecutableDirective(S);
819 }
820 
821 void StmtProfiler::VisitOMPCriticalDirective(const OMPCriticalDirective *S) {
822   VisitOMPExecutableDirective(S);
823   VisitName(S->getDirectiveName().getName());
824 }
825 
826 void
827 StmtProfiler::VisitOMPParallelForDirective(const OMPParallelForDirective *S) {
828   VisitOMPLoopDirective(S);
829 }
830 
831 void StmtProfiler::VisitOMPParallelForSimdDirective(
832     const OMPParallelForSimdDirective *S) {
833   VisitOMPLoopDirective(S);
834 }
835 
836 void StmtProfiler::VisitOMPParallelSectionsDirective(
837     const OMPParallelSectionsDirective *S) {
838   VisitOMPExecutableDirective(S);
839 }
840 
841 void StmtProfiler::VisitOMPTaskDirective(const OMPTaskDirective *S) {
842   VisitOMPExecutableDirective(S);
843 }
844 
845 void StmtProfiler::VisitOMPTaskyieldDirective(const OMPTaskyieldDirective *S) {
846   VisitOMPExecutableDirective(S);
847 }
848 
849 void StmtProfiler::VisitOMPBarrierDirective(const OMPBarrierDirective *S) {
850   VisitOMPExecutableDirective(S);
851 }
852 
853 void StmtProfiler::VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *S) {
854   VisitOMPExecutableDirective(S);
855 }
856 
857 void StmtProfiler::VisitOMPTaskgroupDirective(const OMPTaskgroupDirective *S) {
858   VisitOMPExecutableDirective(S);
859   if (const Expr *E = S->getReductionRef())
860     VisitStmt(E);
861 }
862 
863 void StmtProfiler::VisitOMPFlushDirective(const OMPFlushDirective *S) {
864   VisitOMPExecutableDirective(S);
865 }
866 
867 void StmtProfiler::VisitOMPOrderedDirective(const OMPOrderedDirective *S) {
868   VisitOMPExecutableDirective(S);
869 }
870 
871 void StmtProfiler::VisitOMPAtomicDirective(const OMPAtomicDirective *S) {
872   VisitOMPExecutableDirective(S);
873 }
874 
875 void StmtProfiler::VisitOMPTargetDirective(const OMPTargetDirective *S) {
876   VisitOMPExecutableDirective(S);
877 }
878 
879 void StmtProfiler::VisitOMPTargetDataDirective(const OMPTargetDataDirective *S) {
880   VisitOMPExecutableDirective(S);
881 }
882 
883 void StmtProfiler::VisitOMPTargetEnterDataDirective(
884     const OMPTargetEnterDataDirective *S) {
885   VisitOMPExecutableDirective(S);
886 }
887 
888 void StmtProfiler::VisitOMPTargetExitDataDirective(
889     const OMPTargetExitDataDirective *S) {
890   VisitOMPExecutableDirective(S);
891 }
892 
893 void StmtProfiler::VisitOMPTargetParallelDirective(
894     const OMPTargetParallelDirective *S) {
895   VisitOMPExecutableDirective(S);
896 }
897 
898 void StmtProfiler::VisitOMPTargetParallelForDirective(
899     const OMPTargetParallelForDirective *S) {
900   VisitOMPExecutableDirective(S);
901 }
902 
903 void StmtProfiler::VisitOMPTeamsDirective(const OMPTeamsDirective *S) {
904   VisitOMPExecutableDirective(S);
905 }
906 
907 void StmtProfiler::VisitOMPCancellationPointDirective(
908     const OMPCancellationPointDirective *S) {
909   VisitOMPExecutableDirective(S);
910 }
911 
912 void StmtProfiler::VisitOMPCancelDirective(const OMPCancelDirective *S) {
913   VisitOMPExecutableDirective(S);
914 }
915 
916 void StmtProfiler::VisitOMPTaskLoopDirective(const OMPTaskLoopDirective *S) {
917   VisitOMPLoopDirective(S);
918 }
919 
920 void StmtProfiler::VisitOMPTaskLoopSimdDirective(
921     const OMPTaskLoopSimdDirective *S) {
922   VisitOMPLoopDirective(S);
923 }
924 
925 void StmtProfiler::VisitOMPMasterTaskLoopDirective(
926     const OMPMasterTaskLoopDirective *S) {
927   VisitOMPLoopDirective(S);
928 }
929 
930 void StmtProfiler::VisitOMPMasterTaskLoopSimdDirective(
931     const OMPMasterTaskLoopSimdDirective *S) {
932   VisitOMPLoopDirective(S);
933 }
934 
935 void StmtProfiler::VisitOMPParallelMasterTaskLoopDirective(
936     const OMPParallelMasterTaskLoopDirective *S) {
937   VisitOMPLoopDirective(S);
938 }
939 
940 void StmtProfiler::VisitOMPDistributeDirective(
941     const OMPDistributeDirective *S) {
942   VisitOMPLoopDirective(S);
943 }
944 
945 void OMPClauseProfiler::VisitOMPDistScheduleClause(
946     const OMPDistScheduleClause *C) {
947   VistOMPClauseWithPreInit(C);
948   if (auto *S = C->getChunkSize())
949     Profiler->VisitStmt(S);
950 }
951 
952 void OMPClauseProfiler::VisitOMPDefaultmapClause(const OMPDefaultmapClause *) {}
953 
954 void StmtProfiler::VisitOMPTargetUpdateDirective(
955     const OMPTargetUpdateDirective *S) {
956   VisitOMPExecutableDirective(S);
957 }
958 
959 void StmtProfiler::VisitOMPDistributeParallelForDirective(
960     const OMPDistributeParallelForDirective *S) {
961   VisitOMPLoopDirective(S);
962 }
963 
964 void StmtProfiler::VisitOMPDistributeParallelForSimdDirective(
965     const OMPDistributeParallelForSimdDirective *S) {
966   VisitOMPLoopDirective(S);
967 }
968 
969 void StmtProfiler::VisitOMPDistributeSimdDirective(
970     const OMPDistributeSimdDirective *S) {
971   VisitOMPLoopDirective(S);
972 }
973 
974 void StmtProfiler::VisitOMPTargetParallelForSimdDirective(
975     const OMPTargetParallelForSimdDirective *S) {
976   VisitOMPLoopDirective(S);
977 }
978 
979 void StmtProfiler::VisitOMPTargetSimdDirective(
980     const OMPTargetSimdDirective *S) {
981   VisitOMPLoopDirective(S);
982 }
983 
984 void StmtProfiler::VisitOMPTeamsDistributeDirective(
985     const OMPTeamsDistributeDirective *S) {
986   VisitOMPLoopDirective(S);
987 }
988 
989 void StmtProfiler::VisitOMPTeamsDistributeSimdDirective(
990     const OMPTeamsDistributeSimdDirective *S) {
991   VisitOMPLoopDirective(S);
992 }
993 
994 void StmtProfiler::VisitOMPTeamsDistributeParallelForSimdDirective(
995     const OMPTeamsDistributeParallelForSimdDirective *S) {
996   VisitOMPLoopDirective(S);
997 }
998 
999 void StmtProfiler::VisitOMPTeamsDistributeParallelForDirective(
1000     const OMPTeamsDistributeParallelForDirective *S) {
1001   VisitOMPLoopDirective(S);
1002 }
1003 
1004 void StmtProfiler::VisitOMPTargetTeamsDirective(
1005     const OMPTargetTeamsDirective *S) {
1006   VisitOMPExecutableDirective(S);
1007 }
1008 
1009 void StmtProfiler::VisitOMPTargetTeamsDistributeDirective(
1010     const OMPTargetTeamsDistributeDirective *S) {
1011   VisitOMPLoopDirective(S);
1012 }
1013 
1014 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForDirective(
1015     const OMPTargetTeamsDistributeParallelForDirective *S) {
1016   VisitOMPLoopDirective(S);
1017 }
1018 
1019 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
1020     const OMPTargetTeamsDistributeParallelForSimdDirective *S) {
1021   VisitOMPLoopDirective(S);
1022 }
1023 
1024 void StmtProfiler::VisitOMPTargetTeamsDistributeSimdDirective(
1025     const OMPTargetTeamsDistributeSimdDirective *S) {
1026   VisitOMPLoopDirective(S);
1027 }
1028 
1029 void StmtProfiler::VisitExpr(const Expr *S) {
1030   VisitStmt(S);
1031 }
1032 
1033 void StmtProfiler::VisitConstantExpr(const ConstantExpr *S) {
1034   VisitExpr(S);
1035 }
1036 
1037 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
1038   VisitExpr(S);
1039   if (!Canonical)
1040     VisitNestedNameSpecifier(S->getQualifier());
1041   VisitDecl(S->getDecl());
1042   if (!Canonical) {
1043     ID.AddBoolean(S->hasExplicitTemplateArgs());
1044     if (S->hasExplicitTemplateArgs())
1045       VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1046   }
1047 }
1048 
1049 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
1050   VisitExpr(S);
1051   ID.AddInteger(S->getIdentKind());
1052 }
1053 
1054 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
1055   VisitExpr(S);
1056   S->getValue().Profile(ID);
1057   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1058 }
1059 
1060 void StmtProfiler::VisitFixedPointLiteral(const FixedPointLiteral *S) {
1061   VisitExpr(S);
1062   S->getValue().Profile(ID);
1063   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1064 }
1065 
1066 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
1067   VisitExpr(S);
1068   ID.AddInteger(S->getKind());
1069   ID.AddInteger(S->getValue());
1070 }
1071 
1072 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
1073   VisitExpr(S);
1074   S->getValue().Profile(ID);
1075   ID.AddBoolean(S->isExact());
1076   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1077 }
1078 
1079 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
1080   VisitExpr(S);
1081 }
1082 
1083 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
1084   VisitExpr(S);
1085   ID.AddString(S->getBytes());
1086   ID.AddInteger(S->getKind());
1087 }
1088 
1089 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
1090   VisitExpr(S);
1091 }
1092 
1093 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
1094   VisitExpr(S);
1095 }
1096 
1097 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
1098   VisitExpr(S);
1099   ID.AddInteger(S->getOpcode());
1100 }
1101 
1102 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
1103   VisitType(S->getTypeSourceInfo()->getType());
1104   unsigned n = S->getNumComponents();
1105   for (unsigned i = 0; i < n; ++i) {
1106     const OffsetOfNode &ON = S->getComponent(i);
1107     ID.AddInteger(ON.getKind());
1108     switch (ON.getKind()) {
1109     case OffsetOfNode::Array:
1110       // Expressions handled below.
1111       break;
1112 
1113     case OffsetOfNode::Field:
1114       VisitDecl(ON.getField());
1115       break;
1116 
1117     case OffsetOfNode::Identifier:
1118       VisitIdentifierInfo(ON.getFieldName());
1119       break;
1120 
1121     case OffsetOfNode::Base:
1122       // These nodes are implicit, and therefore don't need profiling.
1123       break;
1124     }
1125   }
1126 
1127   VisitExpr(S);
1128 }
1129 
1130 void
1131 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
1132   VisitExpr(S);
1133   ID.AddInteger(S->getKind());
1134   if (S->isArgumentType())
1135     VisitType(S->getArgumentType());
1136 }
1137 
1138 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
1139   VisitExpr(S);
1140 }
1141 
1142 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
1143   VisitExpr(S);
1144 }
1145 
1146 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
1147   VisitExpr(S);
1148 }
1149 
1150 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
1151   VisitExpr(S);
1152   VisitDecl(S->getMemberDecl());
1153   if (!Canonical)
1154     VisitNestedNameSpecifier(S->getQualifier());
1155   ID.AddBoolean(S->isArrow());
1156 }
1157 
1158 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
1159   VisitExpr(S);
1160   ID.AddBoolean(S->isFileScope());
1161 }
1162 
1163 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
1164   VisitExpr(S);
1165 }
1166 
1167 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
1168   VisitCastExpr(S);
1169   ID.AddInteger(S->getValueKind());
1170 }
1171 
1172 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
1173   VisitCastExpr(S);
1174   VisitType(S->getTypeAsWritten());
1175 }
1176 
1177 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
1178   VisitExplicitCastExpr(S);
1179 }
1180 
1181 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
1182   VisitExpr(S);
1183   ID.AddInteger(S->getOpcode());
1184 }
1185 
1186 void
1187 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
1188   VisitBinaryOperator(S);
1189 }
1190 
1191 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
1192   VisitExpr(S);
1193 }
1194 
1195 void StmtProfiler::VisitBinaryConditionalOperator(
1196     const BinaryConditionalOperator *S) {
1197   VisitExpr(S);
1198 }
1199 
1200 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
1201   VisitExpr(S);
1202   VisitDecl(S->getLabel());
1203 }
1204 
1205 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
1206   VisitExpr(S);
1207 }
1208 
1209 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
1210   VisitExpr(S);
1211 }
1212 
1213 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
1214   VisitExpr(S);
1215 }
1216 
1217 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
1218   VisitExpr(S);
1219 }
1220 
1221 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
1222   VisitExpr(S);
1223 }
1224 
1225 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
1226   VisitExpr(S);
1227 }
1228 
1229 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
1230   if (S->getSyntacticForm()) {
1231     VisitInitListExpr(S->getSyntacticForm());
1232     return;
1233   }
1234 
1235   VisitExpr(S);
1236 }
1237 
1238 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
1239   VisitExpr(S);
1240   ID.AddBoolean(S->usesGNUSyntax());
1241   for (const DesignatedInitExpr::Designator &D : S->designators()) {
1242     if (D.isFieldDesignator()) {
1243       ID.AddInteger(0);
1244       VisitName(D.getFieldName());
1245       continue;
1246     }
1247 
1248     if (D.isArrayDesignator()) {
1249       ID.AddInteger(1);
1250     } else {
1251       assert(D.isArrayRangeDesignator());
1252       ID.AddInteger(2);
1253     }
1254     ID.AddInteger(D.getFirstExprIndex());
1255   }
1256 }
1257 
1258 // Seems that if VisitInitListExpr() only works on the syntactic form of an
1259 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
1260 void StmtProfiler::VisitDesignatedInitUpdateExpr(
1261     const DesignatedInitUpdateExpr *S) {
1262   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
1263                    "initializer");
1264 }
1265 
1266 void StmtProfiler::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *S) {
1267   VisitExpr(S);
1268 }
1269 
1270 void StmtProfiler::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *S) {
1271   VisitExpr(S);
1272 }
1273 
1274 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
1275   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
1276 }
1277 
1278 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
1279   VisitExpr(S);
1280 }
1281 
1282 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
1283   VisitExpr(S);
1284   VisitName(&S->getAccessor());
1285 }
1286 
1287 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
1288   VisitExpr(S);
1289   VisitDecl(S->getBlockDecl());
1290 }
1291 
1292 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
1293   VisitExpr(S);
1294   for (const GenericSelectionExpr::ConstAssociation &Assoc :
1295        S->associations()) {
1296     QualType T = Assoc.getType();
1297     if (T.isNull())
1298       ID.AddPointer(nullptr);
1299     else
1300       VisitType(T);
1301     VisitExpr(Assoc.getAssociationExpr());
1302   }
1303 }
1304 
1305 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
1306   VisitExpr(S);
1307   for (PseudoObjectExpr::const_semantics_iterator
1308          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
1309     // Normally, we would not profile the source expressions of OVEs.
1310     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
1311       Visit(OVE->getSourceExpr());
1312 }
1313 
1314 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
1315   VisitExpr(S);
1316   ID.AddInteger(S->getOp());
1317 }
1318 
1319 void StmtProfiler::VisitConceptSpecializationExpr(
1320                                            const ConceptSpecializationExpr *S) {
1321   VisitExpr(S);
1322   VisitDecl(S->getFoundDecl());
1323   VisitTemplateArguments(S->getTemplateArgsAsWritten()->getTemplateArgs(),
1324                          S->getTemplateArgsAsWritten()->NumTemplateArgs);
1325 }
1326 
1327 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
1328                                           UnaryOperatorKind &UnaryOp,
1329                                           BinaryOperatorKind &BinaryOp) {
1330   switch (S->getOperator()) {
1331   case OO_None:
1332   case OO_New:
1333   case OO_Delete:
1334   case OO_Array_New:
1335   case OO_Array_Delete:
1336   case OO_Arrow:
1337   case OO_Call:
1338   case OO_Conditional:
1339   case NUM_OVERLOADED_OPERATORS:
1340     llvm_unreachable("Invalid operator call kind");
1341 
1342   case OO_Plus:
1343     if (S->getNumArgs() == 1) {
1344       UnaryOp = UO_Plus;
1345       return Stmt::UnaryOperatorClass;
1346     }
1347 
1348     BinaryOp = BO_Add;
1349     return Stmt::BinaryOperatorClass;
1350 
1351   case OO_Minus:
1352     if (S->getNumArgs() == 1) {
1353       UnaryOp = UO_Minus;
1354       return Stmt::UnaryOperatorClass;
1355     }
1356 
1357     BinaryOp = BO_Sub;
1358     return Stmt::BinaryOperatorClass;
1359 
1360   case OO_Star:
1361     if (S->getNumArgs() == 1) {
1362       UnaryOp = UO_Deref;
1363       return Stmt::UnaryOperatorClass;
1364     }
1365 
1366     BinaryOp = BO_Mul;
1367     return Stmt::BinaryOperatorClass;
1368 
1369   case OO_Slash:
1370     BinaryOp = BO_Div;
1371     return Stmt::BinaryOperatorClass;
1372 
1373   case OO_Percent:
1374     BinaryOp = BO_Rem;
1375     return Stmt::BinaryOperatorClass;
1376 
1377   case OO_Caret:
1378     BinaryOp = BO_Xor;
1379     return Stmt::BinaryOperatorClass;
1380 
1381   case OO_Amp:
1382     if (S->getNumArgs() == 1) {
1383       UnaryOp = UO_AddrOf;
1384       return Stmt::UnaryOperatorClass;
1385     }
1386 
1387     BinaryOp = BO_And;
1388     return Stmt::BinaryOperatorClass;
1389 
1390   case OO_Pipe:
1391     BinaryOp = BO_Or;
1392     return Stmt::BinaryOperatorClass;
1393 
1394   case OO_Tilde:
1395     UnaryOp = UO_Not;
1396     return Stmt::UnaryOperatorClass;
1397 
1398   case OO_Exclaim:
1399     UnaryOp = UO_LNot;
1400     return Stmt::UnaryOperatorClass;
1401 
1402   case OO_Equal:
1403     BinaryOp = BO_Assign;
1404     return Stmt::BinaryOperatorClass;
1405 
1406   case OO_Less:
1407     BinaryOp = BO_LT;
1408     return Stmt::BinaryOperatorClass;
1409 
1410   case OO_Greater:
1411     BinaryOp = BO_GT;
1412     return Stmt::BinaryOperatorClass;
1413 
1414   case OO_PlusEqual:
1415     BinaryOp = BO_AddAssign;
1416     return Stmt::CompoundAssignOperatorClass;
1417 
1418   case OO_MinusEqual:
1419     BinaryOp = BO_SubAssign;
1420     return Stmt::CompoundAssignOperatorClass;
1421 
1422   case OO_StarEqual:
1423     BinaryOp = BO_MulAssign;
1424     return Stmt::CompoundAssignOperatorClass;
1425 
1426   case OO_SlashEqual:
1427     BinaryOp = BO_DivAssign;
1428     return Stmt::CompoundAssignOperatorClass;
1429 
1430   case OO_PercentEqual:
1431     BinaryOp = BO_RemAssign;
1432     return Stmt::CompoundAssignOperatorClass;
1433 
1434   case OO_CaretEqual:
1435     BinaryOp = BO_XorAssign;
1436     return Stmt::CompoundAssignOperatorClass;
1437 
1438   case OO_AmpEqual:
1439     BinaryOp = BO_AndAssign;
1440     return Stmt::CompoundAssignOperatorClass;
1441 
1442   case OO_PipeEqual:
1443     BinaryOp = BO_OrAssign;
1444     return Stmt::CompoundAssignOperatorClass;
1445 
1446   case OO_LessLess:
1447     BinaryOp = BO_Shl;
1448     return Stmt::BinaryOperatorClass;
1449 
1450   case OO_GreaterGreater:
1451     BinaryOp = BO_Shr;
1452     return Stmt::BinaryOperatorClass;
1453 
1454   case OO_LessLessEqual:
1455     BinaryOp = BO_ShlAssign;
1456     return Stmt::CompoundAssignOperatorClass;
1457 
1458   case OO_GreaterGreaterEqual:
1459     BinaryOp = BO_ShrAssign;
1460     return Stmt::CompoundAssignOperatorClass;
1461 
1462   case OO_EqualEqual:
1463     BinaryOp = BO_EQ;
1464     return Stmt::BinaryOperatorClass;
1465 
1466   case OO_ExclaimEqual:
1467     BinaryOp = BO_NE;
1468     return Stmt::BinaryOperatorClass;
1469 
1470   case OO_LessEqual:
1471     BinaryOp = BO_LE;
1472     return Stmt::BinaryOperatorClass;
1473 
1474   case OO_GreaterEqual:
1475     BinaryOp = BO_GE;
1476     return Stmt::BinaryOperatorClass;
1477 
1478   case OO_Spaceship:
1479     // FIXME: Update this once we support <=> expressions.
1480     llvm_unreachable("<=> expressions not supported yet");
1481 
1482   case OO_AmpAmp:
1483     BinaryOp = BO_LAnd;
1484     return Stmt::BinaryOperatorClass;
1485 
1486   case OO_PipePipe:
1487     BinaryOp = BO_LOr;
1488     return Stmt::BinaryOperatorClass;
1489 
1490   case OO_PlusPlus:
1491     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1492                                   : UO_PostInc;
1493     return Stmt::UnaryOperatorClass;
1494 
1495   case OO_MinusMinus:
1496     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1497                                   : UO_PostDec;
1498     return Stmt::UnaryOperatorClass;
1499 
1500   case OO_Comma:
1501     BinaryOp = BO_Comma;
1502     return Stmt::BinaryOperatorClass;
1503 
1504   case OO_ArrowStar:
1505     BinaryOp = BO_PtrMemI;
1506     return Stmt::BinaryOperatorClass;
1507 
1508   case OO_Subscript:
1509     return Stmt::ArraySubscriptExprClass;
1510 
1511   case OO_Coawait:
1512     UnaryOp = UO_Coawait;
1513     return Stmt::UnaryOperatorClass;
1514   }
1515 
1516   llvm_unreachable("Invalid overloaded operator expression");
1517 }
1518 
1519 #if defined(_MSC_VER) && !defined(__clang__)
1520 #if _MSC_VER == 1911
1521 // Work around https://developercommunity.visualstudio.com/content/problem/84002/clang-cl-when-built-with-vc-2017-crashes-cause-vc.html
1522 // MSVC 2017 update 3 miscompiles this function, and a clang built with it
1523 // will crash in stage 2 of a bootstrap build.
1524 #pragma optimize("", off)
1525 #endif
1526 #endif
1527 
1528 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1529   if (S->isTypeDependent()) {
1530     // Type-dependent operator calls are profiled like their underlying
1531     // syntactic operator.
1532     //
1533     // An operator call to operator-> is always implicit, so just skip it. The
1534     // enclosing MemberExpr will profile the actual member access.
1535     if (S->getOperator() == OO_Arrow)
1536       return Visit(S->getArg(0));
1537 
1538     UnaryOperatorKind UnaryOp = UO_Extension;
1539     BinaryOperatorKind BinaryOp = BO_Comma;
1540     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1541 
1542     ID.AddInteger(SC);
1543     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1544       Visit(S->getArg(I));
1545     if (SC == Stmt::UnaryOperatorClass)
1546       ID.AddInteger(UnaryOp);
1547     else if (SC == Stmt::BinaryOperatorClass ||
1548              SC == Stmt::CompoundAssignOperatorClass)
1549       ID.AddInteger(BinaryOp);
1550     else
1551       assert(SC == Stmt::ArraySubscriptExprClass);
1552 
1553     return;
1554   }
1555 
1556   VisitCallExpr(S);
1557   ID.AddInteger(S->getOperator());
1558 }
1559 
1560 void StmtProfiler::VisitCXXRewrittenBinaryOperator(
1561     const CXXRewrittenBinaryOperator *S) {
1562   // If a rewritten operator were ever to be type-dependent, we should profile
1563   // it following its syntactic operator.
1564   assert(!S->isTypeDependent() &&
1565          "resolved rewritten operator should never be type-dependent");
1566   ID.AddBoolean(S->isReversed());
1567   VisitExpr(S->getSemanticForm());
1568 }
1569 
1570 #if defined(_MSC_VER) && !defined(__clang__)
1571 #if _MSC_VER == 1911
1572 #pragma optimize("", on)
1573 #endif
1574 #endif
1575 
1576 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1577   VisitCallExpr(S);
1578 }
1579 
1580 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1581   VisitCallExpr(S);
1582 }
1583 
1584 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1585   VisitExpr(S);
1586 }
1587 
1588 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1589   VisitExplicitCastExpr(S);
1590 }
1591 
1592 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1593   VisitCXXNamedCastExpr(S);
1594 }
1595 
1596 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1597   VisitCXXNamedCastExpr(S);
1598 }
1599 
1600 void
1601 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1602   VisitCXXNamedCastExpr(S);
1603 }
1604 
1605 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1606   VisitCXXNamedCastExpr(S);
1607 }
1608 
1609 void StmtProfiler::VisitBuiltinBitCastExpr(const BuiltinBitCastExpr *S) {
1610   VisitExpr(S);
1611   VisitType(S->getTypeInfoAsWritten()->getType());
1612 }
1613 
1614 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1615   VisitCallExpr(S);
1616 }
1617 
1618 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1619   VisitExpr(S);
1620   ID.AddBoolean(S->getValue());
1621 }
1622 
1623 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1624   VisitExpr(S);
1625 }
1626 
1627 void StmtProfiler::VisitCXXStdInitializerListExpr(
1628     const CXXStdInitializerListExpr *S) {
1629   VisitExpr(S);
1630 }
1631 
1632 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1633   VisitExpr(S);
1634   if (S->isTypeOperand())
1635     VisitType(S->getTypeOperandSourceInfo()->getType());
1636 }
1637 
1638 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1639   VisitExpr(S);
1640   if (S->isTypeOperand())
1641     VisitType(S->getTypeOperandSourceInfo()->getType());
1642 }
1643 
1644 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1645   VisitExpr(S);
1646   VisitDecl(S->getPropertyDecl());
1647 }
1648 
1649 void StmtProfiler::VisitMSPropertySubscriptExpr(
1650     const MSPropertySubscriptExpr *S) {
1651   VisitExpr(S);
1652 }
1653 
1654 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1655   VisitExpr(S);
1656   ID.AddBoolean(S->isImplicit());
1657 }
1658 
1659 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1660   VisitExpr(S);
1661 }
1662 
1663 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1664   VisitExpr(S);
1665   VisitDecl(S->getParam());
1666 }
1667 
1668 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1669   VisitExpr(S);
1670   VisitDecl(S->getField());
1671 }
1672 
1673 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1674   VisitExpr(S);
1675   VisitDecl(
1676          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1677 }
1678 
1679 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1680   VisitExpr(S);
1681   VisitDecl(S->getConstructor());
1682   ID.AddBoolean(S->isElidable());
1683 }
1684 
1685 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
1686     const CXXInheritedCtorInitExpr *S) {
1687   VisitExpr(S);
1688   VisitDecl(S->getConstructor());
1689 }
1690 
1691 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1692   VisitExplicitCastExpr(S);
1693 }
1694 
1695 void
1696 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1697   VisitCXXConstructExpr(S);
1698 }
1699 
1700 void
1701 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1702   VisitExpr(S);
1703   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1704                                  CEnd = S->explicit_capture_end();
1705        C != CEnd; ++C) {
1706     if (C->capturesVLAType())
1707       continue;
1708 
1709     ID.AddInteger(C->getCaptureKind());
1710     switch (C->getCaptureKind()) {
1711     case LCK_StarThis:
1712     case LCK_This:
1713       break;
1714     case LCK_ByRef:
1715     case LCK_ByCopy:
1716       VisitDecl(C->getCapturedVar());
1717       ID.AddBoolean(C->isPackExpansion());
1718       break;
1719     case LCK_VLAType:
1720       llvm_unreachable("VLA type in explicit captures.");
1721     }
1722   }
1723   // Note: If we actually needed to be able to match lambda
1724   // expressions, we would have to consider parameters and return type
1725   // here, among other things.
1726   VisitStmt(S->getBody());
1727 }
1728 
1729 void
1730 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1731   VisitExpr(S);
1732 }
1733 
1734 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1735   VisitExpr(S);
1736   ID.AddBoolean(S->isGlobalDelete());
1737   ID.AddBoolean(S->isArrayForm());
1738   VisitDecl(S->getOperatorDelete());
1739 }
1740 
1741 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1742   VisitExpr(S);
1743   VisitType(S->getAllocatedType());
1744   VisitDecl(S->getOperatorNew());
1745   VisitDecl(S->getOperatorDelete());
1746   ID.AddBoolean(S->isArray());
1747   ID.AddInteger(S->getNumPlacementArgs());
1748   ID.AddBoolean(S->isGlobalNew());
1749   ID.AddBoolean(S->isParenTypeId());
1750   ID.AddInteger(S->getInitializationStyle());
1751 }
1752 
1753 void
1754 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1755   VisitExpr(S);
1756   ID.AddBoolean(S->isArrow());
1757   VisitNestedNameSpecifier(S->getQualifier());
1758   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1759   if (S->getScopeTypeInfo())
1760     VisitType(S->getScopeTypeInfo()->getType());
1761   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1762   if (S->getDestroyedTypeInfo())
1763     VisitType(S->getDestroyedType());
1764   else
1765     VisitIdentifierInfo(S->getDestroyedTypeIdentifier());
1766 }
1767 
1768 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1769   VisitExpr(S);
1770   VisitNestedNameSpecifier(S->getQualifier());
1771   VisitName(S->getName(), /*TreatAsDecl*/ true);
1772   ID.AddBoolean(S->hasExplicitTemplateArgs());
1773   if (S->hasExplicitTemplateArgs())
1774     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1775 }
1776 
1777 void
1778 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1779   VisitOverloadExpr(S);
1780 }
1781 
1782 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1783   VisitExpr(S);
1784   ID.AddInteger(S->getTrait());
1785   ID.AddInteger(S->getNumArgs());
1786   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1787     VisitType(S->getArg(I)->getType());
1788 }
1789 
1790 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1791   VisitExpr(S);
1792   ID.AddInteger(S->getTrait());
1793   VisitType(S->getQueriedType());
1794 }
1795 
1796 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1797   VisitExpr(S);
1798   ID.AddInteger(S->getTrait());
1799   VisitExpr(S->getQueriedExpression());
1800 }
1801 
1802 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1803     const DependentScopeDeclRefExpr *S) {
1804   VisitExpr(S);
1805   VisitName(S->getDeclName());
1806   VisitNestedNameSpecifier(S->getQualifier());
1807   ID.AddBoolean(S->hasExplicitTemplateArgs());
1808   if (S->hasExplicitTemplateArgs())
1809     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1810 }
1811 
1812 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1813   VisitExpr(S);
1814 }
1815 
1816 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1817     const CXXUnresolvedConstructExpr *S) {
1818   VisitExpr(S);
1819   VisitType(S->getTypeAsWritten());
1820   ID.AddInteger(S->isListInitialization());
1821 }
1822 
1823 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1824     const CXXDependentScopeMemberExpr *S) {
1825   ID.AddBoolean(S->isImplicitAccess());
1826   if (!S->isImplicitAccess()) {
1827     VisitExpr(S);
1828     ID.AddBoolean(S->isArrow());
1829   }
1830   VisitNestedNameSpecifier(S->getQualifier());
1831   VisitName(S->getMember());
1832   ID.AddBoolean(S->hasExplicitTemplateArgs());
1833   if (S->hasExplicitTemplateArgs())
1834     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1835 }
1836 
1837 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1838   ID.AddBoolean(S->isImplicitAccess());
1839   if (!S->isImplicitAccess()) {
1840     VisitExpr(S);
1841     ID.AddBoolean(S->isArrow());
1842   }
1843   VisitNestedNameSpecifier(S->getQualifier());
1844   VisitName(S->getMemberName());
1845   ID.AddBoolean(S->hasExplicitTemplateArgs());
1846   if (S->hasExplicitTemplateArgs())
1847     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1848 }
1849 
1850 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1851   VisitExpr(S);
1852 }
1853 
1854 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1855   VisitExpr(S);
1856 }
1857 
1858 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1859   VisitExpr(S);
1860   VisitDecl(S->getPack());
1861   if (S->isPartiallySubstituted()) {
1862     auto Args = S->getPartialArguments();
1863     ID.AddInteger(Args.size());
1864     for (const auto &TA : Args)
1865       VisitTemplateArgument(TA);
1866   } else {
1867     ID.AddInteger(0);
1868   }
1869 }
1870 
1871 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1872     const SubstNonTypeTemplateParmPackExpr *S) {
1873   VisitExpr(S);
1874   VisitDecl(S->getParameterPack());
1875   VisitTemplateArgument(S->getArgumentPack());
1876 }
1877 
1878 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
1879     const SubstNonTypeTemplateParmExpr *E) {
1880   // Profile exactly as the replacement expression.
1881   Visit(E->getReplacement());
1882 }
1883 
1884 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
1885   VisitExpr(S);
1886   VisitDecl(S->getParameterPack());
1887   ID.AddInteger(S->getNumExpansions());
1888   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
1889     VisitDecl(*I);
1890 }
1891 
1892 void StmtProfiler::VisitMaterializeTemporaryExpr(
1893                                            const MaterializeTemporaryExpr *S) {
1894   VisitExpr(S);
1895 }
1896 
1897 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
1898   VisitExpr(S);
1899   ID.AddInteger(S->getOperator());
1900 }
1901 
1902 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
1903   VisitStmt(S);
1904 }
1905 
1906 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
1907   VisitStmt(S);
1908 }
1909 
1910 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
1911   VisitExpr(S);
1912 }
1913 
1914 void StmtProfiler::VisitDependentCoawaitExpr(const DependentCoawaitExpr *S) {
1915   VisitExpr(S);
1916 }
1917 
1918 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
1919   VisitExpr(S);
1920 }
1921 
1922 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
1923   VisitExpr(E);
1924 }
1925 
1926 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
1927   VisitExpr(E);
1928 }
1929 
1930 void StmtProfiler::VisitSourceLocExpr(const SourceLocExpr *E) {
1931   VisitExpr(E);
1932 }
1933 
1934 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
1935   VisitExpr(S);
1936 }
1937 
1938 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
1939   VisitExpr(E);
1940 }
1941 
1942 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
1943   VisitExpr(E);
1944 }
1945 
1946 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
1947   VisitExpr(E);
1948 }
1949 
1950 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
1951   VisitExpr(S);
1952   VisitType(S->getEncodedType());
1953 }
1954 
1955 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
1956   VisitExpr(S);
1957   VisitName(S->getSelector());
1958 }
1959 
1960 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
1961   VisitExpr(S);
1962   VisitDecl(S->getProtocol());
1963 }
1964 
1965 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
1966   VisitExpr(S);
1967   VisitDecl(S->getDecl());
1968   ID.AddBoolean(S->isArrow());
1969   ID.AddBoolean(S->isFreeIvar());
1970 }
1971 
1972 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
1973   VisitExpr(S);
1974   if (S->isImplicitProperty()) {
1975     VisitDecl(S->getImplicitPropertyGetter());
1976     VisitDecl(S->getImplicitPropertySetter());
1977   } else {
1978     VisitDecl(S->getExplicitProperty());
1979   }
1980   if (S->isSuperReceiver()) {
1981     ID.AddBoolean(S->isSuperReceiver());
1982     VisitType(S->getSuperReceiverType());
1983   }
1984 }
1985 
1986 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
1987   VisitExpr(S);
1988   VisitDecl(S->getAtIndexMethodDecl());
1989   VisitDecl(S->setAtIndexMethodDecl());
1990 }
1991 
1992 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
1993   VisitExpr(S);
1994   VisitName(S->getSelector());
1995   VisitDecl(S->getMethodDecl());
1996 }
1997 
1998 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
1999   VisitExpr(S);
2000   ID.AddBoolean(S->isArrow());
2001 }
2002 
2003 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
2004   VisitExpr(S);
2005   ID.AddBoolean(S->getValue());
2006 }
2007 
2008 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
2009     const ObjCIndirectCopyRestoreExpr *S) {
2010   VisitExpr(S);
2011   ID.AddBoolean(S->shouldCopy());
2012 }
2013 
2014 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
2015   VisitExplicitCastExpr(S);
2016   ID.AddBoolean(S->getBridgeKind());
2017 }
2018 
2019 void StmtProfiler::VisitObjCAvailabilityCheckExpr(
2020     const ObjCAvailabilityCheckExpr *S) {
2021   VisitExpr(S);
2022 }
2023 
2024 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
2025                                           unsigned NumArgs) {
2026   ID.AddInteger(NumArgs);
2027   for (unsigned I = 0; I != NumArgs; ++I)
2028     VisitTemplateArgument(Args[I].getArgument());
2029 }
2030 
2031 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
2032   // Mostly repetitive with TemplateArgument::Profile!
2033   ID.AddInteger(Arg.getKind());
2034   switch (Arg.getKind()) {
2035   case TemplateArgument::Null:
2036     break;
2037 
2038   case TemplateArgument::Type:
2039     VisitType(Arg.getAsType());
2040     break;
2041 
2042   case TemplateArgument::Template:
2043   case TemplateArgument::TemplateExpansion:
2044     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
2045     break;
2046 
2047   case TemplateArgument::Declaration:
2048     VisitDecl(Arg.getAsDecl());
2049     break;
2050 
2051   case TemplateArgument::NullPtr:
2052     VisitType(Arg.getNullPtrType());
2053     break;
2054 
2055   case TemplateArgument::Integral:
2056     Arg.getAsIntegral().Profile(ID);
2057     VisitType(Arg.getIntegralType());
2058     break;
2059 
2060   case TemplateArgument::Expression:
2061     Visit(Arg.getAsExpr());
2062     break;
2063 
2064   case TemplateArgument::Pack:
2065     for (const auto &P : Arg.pack_elements())
2066       VisitTemplateArgument(P);
2067     break;
2068   }
2069 }
2070 
2071 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
2072                    bool Canonical) const {
2073   StmtProfilerWithPointers Profiler(ID, Context, Canonical);
2074   Profiler.Visit(this);
2075 }
2076 
2077 void Stmt::ProcessODRHash(llvm::FoldingSetNodeID &ID,
2078                           class ODRHash &Hash) const {
2079   StmtProfilerWithoutPointers Profiler(ID, Hash);
2080   Profiler.Visit(this);
2081 }
2082