xref: /freebsd-src/contrib/llvm-project/clang/lib/AST/StmtProfile.cpp (revision 480093f4440d54b30b3025afeac24b48f2ba7a2e) 
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 void OMPClauseProfiler::VisitOMPNontemporalClause(
773     const OMPNontemporalClause *C) {
774   VisitOMPClauseList(C);
775   for (auto *E : C->private_refs())
776     Profiler->VisitStmt(E);
777 }
778 } // namespace
779 
780 void
781 StmtProfiler::VisitOMPExecutableDirective(const OMPExecutableDirective *S) {
782   VisitStmt(S);
783   OMPClauseProfiler P(this);
784   ArrayRef<OMPClause *> Clauses = S->clauses();
785   for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E = Clauses.end();
786        I != E; ++I)
787     if (*I)
788       P.Visit(*I);
789 }
790 
791 void StmtProfiler::VisitOMPLoopDirective(const OMPLoopDirective *S) {
792   VisitOMPExecutableDirective(S);
793 }
794 
795 void StmtProfiler::VisitOMPParallelDirective(const OMPParallelDirective *S) {
796   VisitOMPExecutableDirective(S);
797 }
798 
799 void StmtProfiler::VisitOMPSimdDirective(const OMPSimdDirective *S) {
800   VisitOMPLoopDirective(S);
801 }
802 
803 void StmtProfiler::VisitOMPForDirective(const OMPForDirective *S) {
804   VisitOMPLoopDirective(S);
805 }
806 
807 void StmtProfiler::VisitOMPForSimdDirective(const OMPForSimdDirective *S) {
808   VisitOMPLoopDirective(S);
809 }
810 
811 void StmtProfiler::VisitOMPSectionsDirective(const OMPSectionsDirective *S) {
812   VisitOMPExecutableDirective(S);
813 }
814 
815 void StmtProfiler::VisitOMPSectionDirective(const OMPSectionDirective *S) {
816   VisitOMPExecutableDirective(S);
817 }
818 
819 void StmtProfiler::VisitOMPSingleDirective(const OMPSingleDirective *S) {
820   VisitOMPExecutableDirective(S);
821 }
822 
823 void StmtProfiler::VisitOMPMasterDirective(const OMPMasterDirective *S) {
824   VisitOMPExecutableDirective(S);
825 }
826 
827 void StmtProfiler::VisitOMPCriticalDirective(const OMPCriticalDirective *S) {
828   VisitOMPExecutableDirective(S);
829   VisitName(S->getDirectiveName().getName());
830 }
831 
832 void
833 StmtProfiler::VisitOMPParallelForDirective(const OMPParallelForDirective *S) {
834   VisitOMPLoopDirective(S);
835 }
836 
837 void StmtProfiler::VisitOMPParallelForSimdDirective(
838     const OMPParallelForSimdDirective *S) {
839   VisitOMPLoopDirective(S);
840 }
841 
842 void StmtProfiler::VisitOMPParallelMasterDirective(
843     const OMPParallelMasterDirective *S) {
844   VisitOMPExecutableDirective(S);
845 }
846 
847 void StmtProfiler::VisitOMPParallelSectionsDirective(
848     const OMPParallelSectionsDirective *S) {
849   VisitOMPExecutableDirective(S);
850 }
851 
852 void StmtProfiler::VisitOMPTaskDirective(const OMPTaskDirective *S) {
853   VisitOMPExecutableDirective(S);
854 }
855 
856 void StmtProfiler::VisitOMPTaskyieldDirective(const OMPTaskyieldDirective *S) {
857   VisitOMPExecutableDirective(S);
858 }
859 
860 void StmtProfiler::VisitOMPBarrierDirective(const OMPBarrierDirective *S) {
861   VisitOMPExecutableDirective(S);
862 }
863 
864 void StmtProfiler::VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *S) {
865   VisitOMPExecutableDirective(S);
866 }
867 
868 void StmtProfiler::VisitOMPTaskgroupDirective(const OMPTaskgroupDirective *S) {
869   VisitOMPExecutableDirective(S);
870   if (const Expr *E = S->getReductionRef())
871     VisitStmt(E);
872 }
873 
874 void StmtProfiler::VisitOMPFlushDirective(const OMPFlushDirective *S) {
875   VisitOMPExecutableDirective(S);
876 }
877 
878 void StmtProfiler::VisitOMPOrderedDirective(const OMPOrderedDirective *S) {
879   VisitOMPExecutableDirective(S);
880 }
881 
882 void StmtProfiler::VisitOMPAtomicDirective(const OMPAtomicDirective *S) {
883   VisitOMPExecutableDirective(S);
884 }
885 
886 void StmtProfiler::VisitOMPTargetDirective(const OMPTargetDirective *S) {
887   VisitOMPExecutableDirective(S);
888 }
889 
890 void StmtProfiler::VisitOMPTargetDataDirective(const OMPTargetDataDirective *S) {
891   VisitOMPExecutableDirective(S);
892 }
893 
894 void StmtProfiler::VisitOMPTargetEnterDataDirective(
895     const OMPTargetEnterDataDirective *S) {
896   VisitOMPExecutableDirective(S);
897 }
898 
899 void StmtProfiler::VisitOMPTargetExitDataDirective(
900     const OMPTargetExitDataDirective *S) {
901   VisitOMPExecutableDirective(S);
902 }
903 
904 void StmtProfiler::VisitOMPTargetParallelDirective(
905     const OMPTargetParallelDirective *S) {
906   VisitOMPExecutableDirective(S);
907 }
908 
909 void StmtProfiler::VisitOMPTargetParallelForDirective(
910     const OMPTargetParallelForDirective *S) {
911   VisitOMPExecutableDirective(S);
912 }
913 
914 void StmtProfiler::VisitOMPTeamsDirective(const OMPTeamsDirective *S) {
915   VisitOMPExecutableDirective(S);
916 }
917 
918 void StmtProfiler::VisitOMPCancellationPointDirective(
919     const OMPCancellationPointDirective *S) {
920   VisitOMPExecutableDirective(S);
921 }
922 
923 void StmtProfiler::VisitOMPCancelDirective(const OMPCancelDirective *S) {
924   VisitOMPExecutableDirective(S);
925 }
926 
927 void StmtProfiler::VisitOMPTaskLoopDirective(const OMPTaskLoopDirective *S) {
928   VisitOMPLoopDirective(S);
929 }
930 
931 void StmtProfiler::VisitOMPTaskLoopSimdDirective(
932     const OMPTaskLoopSimdDirective *S) {
933   VisitOMPLoopDirective(S);
934 }
935 
936 void StmtProfiler::VisitOMPMasterTaskLoopDirective(
937     const OMPMasterTaskLoopDirective *S) {
938   VisitOMPLoopDirective(S);
939 }
940 
941 void StmtProfiler::VisitOMPMasterTaskLoopSimdDirective(
942     const OMPMasterTaskLoopSimdDirective *S) {
943   VisitOMPLoopDirective(S);
944 }
945 
946 void StmtProfiler::VisitOMPParallelMasterTaskLoopDirective(
947     const OMPParallelMasterTaskLoopDirective *S) {
948   VisitOMPLoopDirective(S);
949 }
950 
951 void StmtProfiler::VisitOMPParallelMasterTaskLoopSimdDirective(
952     const OMPParallelMasterTaskLoopSimdDirective *S) {
953   VisitOMPLoopDirective(S);
954 }
955 
956 void StmtProfiler::VisitOMPDistributeDirective(
957     const OMPDistributeDirective *S) {
958   VisitOMPLoopDirective(S);
959 }
960 
961 void OMPClauseProfiler::VisitOMPDistScheduleClause(
962     const OMPDistScheduleClause *C) {
963   VistOMPClauseWithPreInit(C);
964   if (auto *S = C->getChunkSize())
965     Profiler->VisitStmt(S);
966 }
967 
968 void OMPClauseProfiler::VisitOMPDefaultmapClause(const OMPDefaultmapClause *) {}
969 
970 void StmtProfiler::VisitOMPTargetUpdateDirective(
971     const OMPTargetUpdateDirective *S) {
972   VisitOMPExecutableDirective(S);
973 }
974 
975 void StmtProfiler::VisitOMPDistributeParallelForDirective(
976     const OMPDistributeParallelForDirective *S) {
977   VisitOMPLoopDirective(S);
978 }
979 
980 void StmtProfiler::VisitOMPDistributeParallelForSimdDirective(
981     const OMPDistributeParallelForSimdDirective *S) {
982   VisitOMPLoopDirective(S);
983 }
984 
985 void StmtProfiler::VisitOMPDistributeSimdDirective(
986     const OMPDistributeSimdDirective *S) {
987   VisitOMPLoopDirective(S);
988 }
989 
990 void StmtProfiler::VisitOMPTargetParallelForSimdDirective(
991     const OMPTargetParallelForSimdDirective *S) {
992   VisitOMPLoopDirective(S);
993 }
994 
995 void StmtProfiler::VisitOMPTargetSimdDirective(
996     const OMPTargetSimdDirective *S) {
997   VisitOMPLoopDirective(S);
998 }
999 
1000 void StmtProfiler::VisitOMPTeamsDistributeDirective(
1001     const OMPTeamsDistributeDirective *S) {
1002   VisitOMPLoopDirective(S);
1003 }
1004 
1005 void StmtProfiler::VisitOMPTeamsDistributeSimdDirective(
1006     const OMPTeamsDistributeSimdDirective *S) {
1007   VisitOMPLoopDirective(S);
1008 }
1009 
1010 void StmtProfiler::VisitOMPTeamsDistributeParallelForSimdDirective(
1011     const OMPTeamsDistributeParallelForSimdDirective *S) {
1012   VisitOMPLoopDirective(S);
1013 }
1014 
1015 void StmtProfiler::VisitOMPTeamsDistributeParallelForDirective(
1016     const OMPTeamsDistributeParallelForDirective *S) {
1017   VisitOMPLoopDirective(S);
1018 }
1019 
1020 void StmtProfiler::VisitOMPTargetTeamsDirective(
1021     const OMPTargetTeamsDirective *S) {
1022   VisitOMPExecutableDirective(S);
1023 }
1024 
1025 void StmtProfiler::VisitOMPTargetTeamsDistributeDirective(
1026     const OMPTargetTeamsDistributeDirective *S) {
1027   VisitOMPLoopDirective(S);
1028 }
1029 
1030 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForDirective(
1031     const OMPTargetTeamsDistributeParallelForDirective *S) {
1032   VisitOMPLoopDirective(S);
1033 }
1034 
1035 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
1036     const OMPTargetTeamsDistributeParallelForSimdDirective *S) {
1037   VisitOMPLoopDirective(S);
1038 }
1039 
1040 void StmtProfiler::VisitOMPTargetTeamsDistributeSimdDirective(
1041     const OMPTargetTeamsDistributeSimdDirective *S) {
1042   VisitOMPLoopDirective(S);
1043 }
1044 
1045 void StmtProfiler::VisitExpr(const Expr *S) {
1046   VisitStmt(S);
1047 }
1048 
1049 void StmtProfiler::VisitConstantExpr(const ConstantExpr *S) {
1050   VisitExpr(S);
1051 }
1052 
1053 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
1054   VisitExpr(S);
1055   if (!Canonical)
1056     VisitNestedNameSpecifier(S->getQualifier());
1057   VisitDecl(S->getDecl());
1058   if (!Canonical) {
1059     ID.AddBoolean(S->hasExplicitTemplateArgs());
1060     if (S->hasExplicitTemplateArgs())
1061       VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1062   }
1063 }
1064 
1065 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
1066   VisitExpr(S);
1067   ID.AddInteger(S->getIdentKind());
1068 }
1069 
1070 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
1071   VisitExpr(S);
1072   S->getValue().Profile(ID);
1073   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1074 }
1075 
1076 void StmtProfiler::VisitFixedPointLiteral(const FixedPointLiteral *S) {
1077   VisitExpr(S);
1078   S->getValue().Profile(ID);
1079   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1080 }
1081 
1082 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
1083   VisitExpr(S);
1084   ID.AddInteger(S->getKind());
1085   ID.AddInteger(S->getValue());
1086 }
1087 
1088 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
1089   VisitExpr(S);
1090   S->getValue().Profile(ID);
1091   ID.AddBoolean(S->isExact());
1092   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1093 }
1094 
1095 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
1096   VisitExpr(S);
1097 }
1098 
1099 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
1100   VisitExpr(S);
1101   ID.AddString(S->getBytes());
1102   ID.AddInteger(S->getKind());
1103 }
1104 
1105 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
1106   VisitExpr(S);
1107 }
1108 
1109 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
1110   VisitExpr(S);
1111 }
1112 
1113 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
1114   VisitExpr(S);
1115   ID.AddInteger(S->getOpcode());
1116 }
1117 
1118 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
1119   VisitType(S->getTypeSourceInfo()->getType());
1120   unsigned n = S->getNumComponents();
1121   for (unsigned i = 0; i < n; ++i) {
1122     const OffsetOfNode &ON = S->getComponent(i);
1123     ID.AddInteger(ON.getKind());
1124     switch (ON.getKind()) {
1125     case OffsetOfNode::Array:
1126       // Expressions handled below.
1127       break;
1128 
1129     case OffsetOfNode::Field:
1130       VisitDecl(ON.getField());
1131       break;
1132 
1133     case OffsetOfNode::Identifier:
1134       VisitIdentifierInfo(ON.getFieldName());
1135       break;
1136 
1137     case OffsetOfNode::Base:
1138       // These nodes are implicit, and therefore don't need profiling.
1139       break;
1140     }
1141   }
1142 
1143   VisitExpr(S);
1144 }
1145 
1146 void
1147 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
1148   VisitExpr(S);
1149   ID.AddInteger(S->getKind());
1150   if (S->isArgumentType())
1151     VisitType(S->getArgumentType());
1152 }
1153 
1154 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
1155   VisitExpr(S);
1156 }
1157 
1158 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
1159   VisitExpr(S);
1160 }
1161 
1162 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
1163   VisitExpr(S);
1164 }
1165 
1166 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
1167   VisitExpr(S);
1168   VisitDecl(S->getMemberDecl());
1169   if (!Canonical)
1170     VisitNestedNameSpecifier(S->getQualifier());
1171   ID.AddBoolean(S->isArrow());
1172 }
1173 
1174 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
1175   VisitExpr(S);
1176   ID.AddBoolean(S->isFileScope());
1177 }
1178 
1179 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
1180   VisitExpr(S);
1181 }
1182 
1183 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
1184   VisitCastExpr(S);
1185   ID.AddInteger(S->getValueKind());
1186 }
1187 
1188 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
1189   VisitCastExpr(S);
1190   VisitType(S->getTypeAsWritten());
1191 }
1192 
1193 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
1194   VisitExplicitCastExpr(S);
1195 }
1196 
1197 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
1198   VisitExpr(S);
1199   ID.AddInteger(S->getOpcode());
1200 }
1201 
1202 void
1203 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
1204   VisitBinaryOperator(S);
1205 }
1206 
1207 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
1208   VisitExpr(S);
1209 }
1210 
1211 void StmtProfiler::VisitBinaryConditionalOperator(
1212     const BinaryConditionalOperator *S) {
1213   VisitExpr(S);
1214 }
1215 
1216 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
1217   VisitExpr(S);
1218   VisitDecl(S->getLabel());
1219 }
1220 
1221 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
1222   VisitExpr(S);
1223 }
1224 
1225 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
1226   VisitExpr(S);
1227 }
1228 
1229 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
1230   VisitExpr(S);
1231 }
1232 
1233 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
1234   VisitExpr(S);
1235 }
1236 
1237 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
1238   VisitExpr(S);
1239 }
1240 
1241 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
1242   VisitExpr(S);
1243 }
1244 
1245 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
1246   if (S->getSyntacticForm()) {
1247     VisitInitListExpr(S->getSyntacticForm());
1248     return;
1249   }
1250 
1251   VisitExpr(S);
1252 }
1253 
1254 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
1255   VisitExpr(S);
1256   ID.AddBoolean(S->usesGNUSyntax());
1257   for (const DesignatedInitExpr::Designator &D : S->designators()) {
1258     if (D.isFieldDesignator()) {
1259       ID.AddInteger(0);
1260       VisitName(D.getFieldName());
1261       continue;
1262     }
1263 
1264     if (D.isArrayDesignator()) {
1265       ID.AddInteger(1);
1266     } else {
1267       assert(D.isArrayRangeDesignator());
1268       ID.AddInteger(2);
1269     }
1270     ID.AddInteger(D.getFirstExprIndex());
1271   }
1272 }
1273 
1274 // Seems that if VisitInitListExpr() only works on the syntactic form of an
1275 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
1276 void StmtProfiler::VisitDesignatedInitUpdateExpr(
1277     const DesignatedInitUpdateExpr *S) {
1278   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
1279                    "initializer");
1280 }
1281 
1282 void StmtProfiler::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *S) {
1283   VisitExpr(S);
1284 }
1285 
1286 void StmtProfiler::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *S) {
1287   VisitExpr(S);
1288 }
1289 
1290 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
1291   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
1292 }
1293 
1294 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
1295   VisitExpr(S);
1296 }
1297 
1298 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
1299   VisitExpr(S);
1300   VisitName(&S->getAccessor());
1301 }
1302 
1303 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
1304   VisitExpr(S);
1305   VisitDecl(S->getBlockDecl());
1306 }
1307 
1308 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
1309   VisitExpr(S);
1310   for (const GenericSelectionExpr::ConstAssociation Assoc :
1311        S->associations()) {
1312     QualType T = Assoc.getType();
1313     if (T.isNull())
1314       ID.AddPointer(nullptr);
1315     else
1316       VisitType(T);
1317     VisitExpr(Assoc.getAssociationExpr());
1318   }
1319 }
1320 
1321 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
1322   VisitExpr(S);
1323   for (PseudoObjectExpr::const_semantics_iterator
1324          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
1325     // Normally, we would not profile the source expressions of OVEs.
1326     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
1327       Visit(OVE->getSourceExpr());
1328 }
1329 
1330 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
1331   VisitExpr(S);
1332   ID.AddInteger(S->getOp());
1333 }
1334 
1335 void StmtProfiler::VisitConceptSpecializationExpr(
1336                                            const ConceptSpecializationExpr *S) {
1337   VisitExpr(S);
1338   VisitDecl(S->getFoundDecl());
1339   VisitTemplateArguments(S->getTemplateArgsAsWritten()->getTemplateArgs(),
1340                          S->getTemplateArgsAsWritten()->NumTemplateArgs);
1341 }
1342 
1343 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
1344                                           UnaryOperatorKind &UnaryOp,
1345                                           BinaryOperatorKind &BinaryOp) {
1346   switch (S->getOperator()) {
1347   case OO_None:
1348   case OO_New:
1349   case OO_Delete:
1350   case OO_Array_New:
1351   case OO_Array_Delete:
1352   case OO_Arrow:
1353   case OO_Call:
1354   case OO_Conditional:
1355   case NUM_OVERLOADED_OPERATORS:
1356     llvm_unreachable("Invalid operator call kind");
1357 
1358   case OO_Plus:
1359     if (S->getNumArgs() == 1) {
1360       UnaryOp = UO_Plus;
1361       return Stmt::UnaryOperatorClass;
1362     }
1363 
1364     BinaryOp = BO_Add;
1365     return Stmt::BinaryOperatorClass;
1366 
1367   case OO_Minus:
1368     if (S->getNumArgs() == 1) {
1369       UnaryOp = UO_Minus;
1370       return Stmt::UnaryOperatorClass;
1371     }
1372 
1373     BinaryOp = BO_Sub;
1374     return Stmt::BinaryOperatorClass;
1375 
1376   case OO_Star:
1377     if (S->getNumArgs() == 1) {
1378       UnaryOp = UO_Deref;
1379       return Stmt::UnaryOperatorClass;
1380     }
1381 
1382     BinaryOp = BO_Mul;
1383     return Stmt::BinaryOperatorClass;
1384 
1385   case OO_Slash:
1386     BinaryOp = BO_Div;
1387     return Stmt::BinaryOperatorClass;
1388 
1389   case OO_Percent:
1390     BinaryOp = BO_Rem;
1391     return Stmt::BinaryOperatorClass;
1392 
1393   case OO_Caret:
1394     BinaryOp = BO_Xor;
1395     return Stmt::BinaryOperatorClass;
1396 
1397   case OO_Amp:
1398     if (S->getNumArgs() == 1) {
1399       UnaryOp = UO_AddrOf;
1400       return Stmt::UnaryOperatorClass;
1401     }
1402 
1403     BinaryOp = BO_And;
1404     return Stmt::BinaryOperatorClass;
1405 
1406   case OO_Pipe:
1407     BinaryOp = BO_Or;
1408     return Stmt::BinaryOperatorClass;
1409 
1410   case OO_Tilde:
1411     UnaryOp = UO_Not;
1412     return Stmt::UnaryOperatorClass;
1413 
1414   case OO_Exclaim:
1415     UnaryOp = UO_LNot;
1416     return Stmt::UnaryOperatorClass;
1417 
1418   case OO_Equal:
1419     BinaryOp = BO_Assign;
1420     return Stmt::BinaryOperatorClass;
1421 
1422   case OO_Less:
1423     BinaryOp = BO_LT;
1424     return Stmt::BinaryOperatorClass;
1425 
1426   case OO_Greater:
1427     BinaryOp = BO_GT;
1428     return Stmt::BinaryOperatorClass;
1429 
1430   case OO_PlusEqual:
1431     BinaryOp = BO_AddAssign;
1432     return Stmt::CompoundAssignOperatorClass;
1433 
1434   case OO_MinusEqual:
1435     BinaryOp = BO_SubAssign;
1436     return Stmt::CompoundAssignOperatorClass;
1437 
1438   case OO_StarEqual:
1439     BinaryOp = BO_MulAssign;
1440     return Stmt::CompoundAssignOperatorClass;
1441 
1442   case OO_SlashEqual:
1443     BinaryOp = BO_DivAssign;
1444     return Stmt::CompoundAssignOperatorClass;
1445 
1446   case OO_PercentEqual:
1447     BinaryOp = BO_RemAssign;
1448     return Stmt::CompoundAssignOperatorClass;
1449 
1450   case OO_CaretEqual:
1451     BinaryOp = BO_XorAssign;
1452     return Stmt::CompoundAssignOperatorClass;
1453 
1454   case OO_AmpEqual:
1455     BinaryOp = BO_AndAssign;
1456     return Stmt::CompoundAssignOperatorClass;
1457 
1458   case OO_PipeEqual:
1459     BinaryOp = BO_OrAssign;
1460     return Stmt::CompoundAssignOperatorClass;
1461 
1462   case OO_LessLess:
1463     BinaryOp = BO_Shl;
1464     return Stmt::BinaryOperatorClass;
1465 
1466   case OO_GreaterGreater:
1467     BinaryOp = BO_Shr;
1468     return Stmt::BinaryOperatorClass;
1469 
1470   case OO_LessLessEqual:
1471     BinaryOp = BO_ShlAssign;
1472     return Stmt::CompoundAssignOperatorClass;
1473 
1474   case OO_GreaterGreaterEqual:
1475     BinaryOp = BO_ShrAssign;
1476     return Stmt::CompoundAssignOperatorClass;
1477 
1478   case OO_EqualEqual:
1479     BinaryOp = BO_EQ;
1480     return Stmt::BinaryOperatorClass;
1481 
1482   case OO_ExclaimEqual:
1483     BinaryOp = BO_NE;
1484     return Stmt::BinaryOperatorClass;
1485 
1486   case OO_LessEqual:
1487     BinaryOp = BO_LE;
1488     return Stmt::BinaryOperatorClass;
1489 
1490   case OO_GreaterEqual:
1491     BinaryOp = BO_GE;
1492     return Stmt::BinaryOperatorClass;
1493 
1494   case OO_Spaceship:
1495     // FIXME: Update this once we support <=> expressions.
1496     llvm_unreachable("<=> expressions not supported yet");
1497 
1498   case OO_AmpAmp:
1499     BinaryOp = BO_LAnd;
1500     return Stmt::BinaryOperatorClass;
1501 
1502   case OO_PipePipe:
1503     BinaryOp = BO_LOr;
1504     return Stmt::BinaryOperatorClass;
1505 
1506   case OO_PlusPlus:
1507     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1508                                   : UO_PostInc;
1509     return Stmt::UnaryOperatorClass;
1510 
1511   case OO_MinusMinus:
1512     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1513                                   : UO_PostDec;
1514     return Stmt::UnaryOperatorClass;
1515 
1516   case OO_Comma:
1517     BinaryOp = BO_Comma;
1518     return Stmt::BinaryOperatorClass;
1519 
1520   case OO_ArrowStar:
1521     BinaryOp = BO_PtrMemI;
1522     return Stmt::BinaryOperatorClass;
1523 
1524   case OO_Subscript:
1525     return Stmt::ArraySubscriptExprClass;
1526 
1527   case OO_Coawait:
1528     UnaryOp = UO_Coawait;
1529     return Stmt::UnaryOperatorClass;
1530   }
1531 
1532   llvm_unreachable("Invalid overloaded operator expression");
1533 }
1534 
1535 #if defined(_MSC_VER) && !defined(__clang__)
1536 #if _MSC_VER == 1911
1537 // Work around https://developercommunity.visualstudio.com/content/problem/84002/clang-cl-when-built-with-vc-2017-crashes-cause-vc.html
1538 // MSVC 2017 update 3 miscompiles this function, and a clang built with it
1539 // will crash in stage 2 of a bootstrap build.
1540 #pragma optimize("", off)
1541 #endif
1542 #endif
1543 
1544 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1545   if (S->isTypeDependent()) {
1546     // Type-dependent operator calls are profiled like their underlying
1547     // syntactic operator.
1548     //
1549     // An operator call to operator-> is always implicit, so just skip it. The
1550     // enclosing MemberExpr will profile the actual member access.
1551     if (S->getOperator() == OO_Arrow)
1552       return Visit(S->getArg(0));
1553 
1554     UnaryOperatorKind UnaryOp = UO_Extension;
1555     BinaryOperatorKind BinaryOp = BO_Comma;
1556     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1557 
1558     ID.AddInteger(SC);
1559     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1560       Visit(S->getArg(I));
1561     if (SC == Stmt::UnaryOperatorClass)
1562       ID.AddInteger(UnaryOp);
1563     else if (SC == Stmt::BinaryOperatorClass ||
1564              SC == Stmt::CompoundAssignOperatorClass)
1565       ID.AddInteger(BinaryOp);
1566     else
1567       assert(SC == Stmt::ArraySubscriptExprClass);
1568 
1569     return;
1570   }
1571 
1572   VisitCallExpr(S);
1573   ID.AddInteger(S->getOperator());
1574 }
1575 
1576 void StmtProfiler::VisitCXXRewrittenBinaryOperator(
1577     const CXXRewrittenBinaryOperator *S) {
1578   // If a rewritten operator were ever to be type-dependent, we should profile
1579   // it following its syntactic operator.
1580   assert(!S->isTypeDependent() &&
1581          "resolved rewritten operator should never be type-dependent");
1582   ID.AddBoolean(S->isReversed());
1583   VisitExpr(S->getSemanticForm());
1584 }
1585 
1586 #if defined(_MSC_VER) && !defined(__clang__)
1587 #if _MSC_VER == 1911
1588 #pragma optimize("", on)
1589 #endif
1590 #endif
1591 
1592 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1593   VisitCallExpr(S);
1594 }
1595 
1596 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1597   VisitCallExpr(S);
1598 }
1599 
1600 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1601   VisitExpr(S);
1602 }
1603 
1604 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1605   VisitExplicitCastExpr(S);
1606 }
1607 
1608 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1609   VisitCXXNamedCastExpr(S);
1610 }
1611 
1612 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1613   VisitCXXNamedCastExpr(S);
1614 }
1615 
1616 void
1617 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1618   VisitCXXNamedCastExpr(S);
1619 }
1620 
1621 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1622   VisitCXXNamedCastExpr(S);
1623 }
1624 
1625 void StmtProfiler::VisitBuiltinBitCastExpr(const BuiltinBitCastExpr *S) {
1626   VisitExpr(S);
1627   VisitType(S->getTypeInfoAsWritten()->getType());
1628 }
1629 
1630 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1631   VisitCallExpr(S);
1632 }
1633 
1634 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1635   VisitExpr(S);
1636   ID.AddBoolean(S->getValue());
1637 }
1638 
1639 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1640   VisitExpr(S);
1641 }
1642 
1643 void StmtProfiler::VisitCXXStdInitializerListExpr(
1644     const CXXStdInitializerListExpr *S) {
1645   VisitExpr(S);
1646 }
1647 
1648 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1649   VisitExpr(S);
1650   if (S->isTypeOperand())
1651     VisitType(S->getTypeOperandSourceInfo()->getType());
1652 }
1653 
1654 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1655   VisitExpr(S);
1656   if (S->isTypeOperand())
1657     VisitType(S->getTypeOperandSourceInfo()->getType());
1658 }
1659 
1660 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1661   VisitExpr(S);
1662   VisitDecl(S->getPropertyDecl());
1663 }
1664 
1665 void StmtProfiler::VisitMSPropertySubscriptExpr(
1666     const MSPropertySubscriptExpr *S) {
1667   VisitExpr(S);
1668 }
1669 
1670 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1671   VisitExpr(S);
1672   ID.AddBoolean(S->isImplicit());
1673 }
1674 
1675 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1676   VisitExpr(S);
1677 }
1678 
1679 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1680   VisitExpr(S);
1681   VisitDecl(S->getParam());
1682 }
1683 
1684 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1685   VisitExpr(S);
1686   VisitDecl(S->getField());
1687 }
1688 
1689 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1690   VisitExpr(S);
1691   VisitDecl(
1692          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1693 }
1694 
1695 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1696   VisitExpr(S);
1697   VisitDecl(S->getConstructor());
1698   ID.AddBoolean(S->isElidable());
1699 }
1700 
1701 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
1702     const CXXInheritedCtorInitExpr *S) {
1703   VisitExpr(S);
1704   VisitDecl(S->getConstructor());
1705 }
1706 
1707 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1708   VisitExplicitCastExpr(S);
1709 }
1710 
1711 void
1712 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1713   VisitCXXConstructExpr(S);
1714 }
1715 
1716 void
1717 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1718   VisitExpr(S);
1719   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1720                                  CEnd = S->explicit_capture_end();
1721        C != CEnd; ++C) {
1722     if (C->capturesVLAType())
1723       continue;
1724 
1725     ID.AddInteger(C->getCaptureKind());
1726     switch (C->getCaptureKind()) {
1727     case LCK_StarThis:
1728     case LCK_This:
1729       break;
1730     case LCK_ByRef:
1731     case LCK_ByCopy:
1732       VisitDecl(C->getCapturedVar());
1733       ID.AddBoolean(C->isPackExpansion());
1734       break;
1735     case LCK_VLAType:
1736       llvm_unreachable("VLA type in explicit captures.");
1737     }
1738   }
1739   // Note: If we actually needed to be able to match lambda
1740   // expressions, we would have to consider parameters and return type
1741   // here, among other things.
1742   VisitStmt(S->getBody());
1743 }
1744 
1745 void
1746 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1747   VisitExpr(S);
1748 }
1749 
1750 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1751   VisitExpr(S);
1752   ID.AddBoolean(S->isGlobalDelete());
1753   ID.AddBoolean(S->isArrayForm());
1754   VisitDecl(S->getOperatorDelete());
1755 }
1756 
1757 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1758   VisitExpr(S);
1759   VisitType(S->getAllocatedType());
1760   VisitDecl(S->getOperatorNew());
1761   VisitDecl(S->getOperatorDelete());
1762   ID.AddBoolean(S->isArray());
1763   ID.AddInteger(S->getNumPlacementArgs());
1764   ID.AddBoolean(S->isGlobalNew());
1765   ID.AddBoolean(S->isParenTypeId());
1766   ID.AddInteger(S->getInitializationStyle());
1767 }
1768 
1769 void
1770 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1771   VisitExpr(S);
1772   ID.AddBoolean(S->isArrow());
1773   VisitNestedNameSpecifier(S->getQualifier());
1774   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1775   if (S->getScopeTypeInfo())
1776     VisitType(S->getScopeTypeInfo()->getType());
1777   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1778   if (S->getDestroyedTypeInfo())
1779     VisitType(S->getDestroyedType());
1780   else
1781     VisitIdentifierInfo(S->getDestroyedTypeIdentifier());
1782 }
1783 
1784 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1785   VisitExpr(S);
1786   VisitNestedNameSpecifier(S->getQualifier());
1787   VisitName(S->getName(), /*TreatAsDecl*/ true);
1788   ID.AddBoolean(S->hasExplicitTemplateArgs());
1789   if (S->hasExplicitTemplateArgs())
1790     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1791 }
1792 
1793 void
1794 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1795   VisitOverloadExpr(S);
1796 }
1797 
1798 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1799   VisitExpr(S);
1800   ID.AddInteger(S->getTrait());
1801   ID.AddInteger(S->getNumArgs());
1802   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1803     VisitType(S->getArg(I)->getType());
1804 }
1805 
1806 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1807   VisitExpr(S);
1808   ID.AddInteger(S->getTrait());
1809   VisitType(S->getQueriedType());
1810 }
1811 
1812 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1813   VisitExpr(S);
1814   ID.AddInteger(S->getTrait());
1815   VisitExpr(S->getQueriedExpression());
1816 }
1817 
1818 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1819     const DependentScopeDeclRefExpr *S) {
1820   VisitExpr(S);
1821   VisitName(S->getDeclName());
1822   VisitNestedNameSpecifier(S->getQualifier());
1823   ID.AddBoolean(S->hasExplicitTemplateArgs());
1824   if (S->hasExplicitTemplateArgs())
1825     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1826 }
1827 
1828 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1829   VisitExpr(S);
1830 }
1831 
1832 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1833     const CXXUnresolvedConstructExpr *S) {
1834   VisitExpr(S);
1835   VisitType(S->getTypeAsWritten());
1836   ID.AddInteger(S->isListInitialization());
1837 }
1838 
1839 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1840     const CXXDependentScopeMemberExpr *S) {
1841   ID.AddBoolean(S->isImplicitAccess());
1842   if (!S->isImplicitAccess()) {
1843     VisitExpr(S);
1844     ID.AddBoolean(S->isArrow());
1845   }
1846   VisitNestedNameSpecifier(S->getQualifier());
1847   VisitName(S->getMember());
1848   ID.AddBoolean(S->hasExplicitTemplateArgs());
1849   if (S->hasExplicitTemplateArgs())
1850     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1851 }
1852 
1853 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1854   ID.AddBoolean(S->isImplicitAccess());
1855   if (!S->isImplicitAccess()) {
1856     VisitExpr(S);
1857     ID.AddBoolean(S->isArrow());
1858   }
1859   VisitNestedNameSpecifier(S->getQualifier());
1860   VisitName(S->getMemberName());
1861   ID.AddBoolean(S->hasExplicitTemplateArgs());
1862   if (S->hasExplicitTemplateArgs())
1863     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1864 }
1865 
1866 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1867   VisitExpr(S);
1868 }
1869 
1870 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1871   VisitExpr(S);
1872 }
1873 
1874 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1875   VisitExpr(S);
1876   VisitDecl(S->getPack());
1877   if (S->isPartiallySubstituted()) {
1878     auto Args = S->getPartialArguments();
1879     ID.AddInteger(Args.size());
1880     for (const auto &TA : Args)
1881       VisitTemplateArgument(TA);
1882   } else {
1883     ID.AddInteger(0);
1884   }
1885 }
1886 
1887 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1888     const SubstNonTypeTemplateParmPackExpr *S) {
1889   VisitExpr(S);
1890   VisitDecl(S->getParameterPack());
1891   VisitTemplateArgument(S->getArgumentPack());
1892 }
1893 
1894 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
1895     const SubstNonTypeTemplateParmExpr *E) {
1896   // Profile exactly as the replacement expression.
1897   Visit(E->getReplacement());
1898 }
1899 
1900 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
1901   VisitExpr(S);
1902   VisitDecl(S->getParameterPack());
1903   ID.AddInteger(S->getNumExpansions());
1904   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
1905     VisitDecl(*I);
1906 }
1907 
1908 void StmtProfiler::VisitMaterializeTemporaryExpr(
1909                                            const MaterializeTemporaryExpr *S) {
1910   VisitExpr(S);
1911 }
1912 
1913 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
1914   VisitExpr(S);
1915   ID.AddInteger(S->getOperator());
1916 }
1917 
1918 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
1919   VisitStmt(S);
1920 }
1921 
1922 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
1923   VisitStmt(S);
1924 }
1925 
1926 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
1927   VisitExpr(S);
1928 }
1929 
1930 void StmtProfiler::VisitDependentCoawaitExpr(const DependentCoawaitExpr *S) {
1931   VisitExpr(S);
1932 }
1933 
1934 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
1935   VisitExpr(S);
1936 }
1937 
1938 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
1939   VisitExpr(E);
1940 }
1941 
1942 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
1943   VisitExpr(E);
1944 }
1945 
1946 void StmtProfiler::VisitSourceLocExpr(const SourceLocExpr *E) {
1947   VisitExpr(E);
1948 }
1949 
1950 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
1951   VisitExpr(S);
1952 }
1953 
1954 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
1955   VisitExpr(E);
1956 }
1957 
1958 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
1959   VisitExpr(E);
1960 }
1961 
1962 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
1963   VisitExpr(E);
1964 }
1965 
1966 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
1967   VisitExpr(S);
1968   VisitType(S->getEncodedType());
1969 }
1970 
1971 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
1972   VisitExpr(S);
1973   VisitName(S->getSelector());
1974 }
1975 
1976 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
1977   VisitExpr(S);
1978   VisitDecl(S->getProtocol());
1979 }
1980 
1981 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
1982   VisitExpr(S);
1983   VisitDecl(S->getDecl());
1984   ID.AddBoolean(S->isArrow());
1985   ID.AddBoolean(S->isFreeIvar());
1986 }
1987 
1988 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
1989   VisitExpr(S);
1990   if (S->isImplicitProperty()) {
1991     VisitDecl(S->getImplicitPropertyGetter());
1992     VisitDecl(S->getImplicitPropertySetter());
1993   } else {
1994     VisitDecl(S->getExplicitProperty());
1995   }
1996   if (S->isSuperReceiver()) {
1997     ID.AddBoolean(S->isSuperReceiver());
1998     VisitType(S->getSuperReceiverType());
1999   }
2000 }
2001 
2002 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
2003   VisitExpr(S);
2004   VisitDecl(S->getAtIndexMethodDecl());
2005   VisitDecl(S->setAtIndexMethodDecl());
2006 }
2007 
2008 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
2009   VisitExpr(S);
2010   VisitName(S->getSelector());
2011   VisitDecl(S->getMethodDecl());
2012 }
2013 
2014 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
2015   VisitExpr(S);
2016   ID.AddBoolean(S->isArrow());
2017 }
2018 
2019 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
2020   VisitExpr(S);
2021   ID.AddBoolean(S->getValue());
2022 }
2023 
2024 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
2025     const ObjCIndirectCopyRestoreExpr *S) {
2026   VisitExpr(S);
2027   ID.AddBoolean(S->shouldCopy());
2028 }
2029 
2030 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
2031   VisitExplicitCastExpr(S);
2032   ID.AddBoolean(S->getBridgeKind());
2033 }
2034 
2035 void StmtProfiler::VisitObjCAvailabilityCheckExpr(
2036     const ObjCAvailabilityCheckExpr *S) {
2037   VisitExpr(S);
2038 }
2039 
2040 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
2041                                           unsigned NumArgs) {
2042   ID.AddInteger(NumArgs);
2043   for (unsigned I = 0; I != NumArgs; ++I)
2044     VisitTemplateArgument(Args[I].getArgument());
2045 }
2046 
2047 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
2048   // Mostly repetitive with TemplateArgument::Profile!
2049   ID.AddInteger(Arg.getKind());
2050   switch (Arg.getKind()) {
2051   case TemplateArgument::Null:
2052     break;
2053 
2054   case TemplateArgument::Type:
2055     VisitType(Arg.getAsType());
2056     break;
2057 
2058   case TemplateArgument::Template:
2059   case TemplateArgument::TemplateExpansion:
2060     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
2061     break;
2062 
2063   case TemplateArgument::Declaration:
2064     VisitDecl(Arg.getAsDecl());
2065     break;
2066 
2067   case TemplateArgument::NullPtr:
2068     VisitType(Arg.getNullPtrType());
2069     break;
2070 
2071   case TemplateArgument::Integral:
2072     Arg.getAsIntegral().Profile(ID);
2073     VisitType(Arg.getIntegralType());
2074     break;
2075 
2076   case TemplateArgument::Expression:
2077     Visit(Arg.getAsExpr());
2078     break;
2079 
2080   case TemplateArgument::Pack:
2081     for (const auto &P : Arg.pack_elements())
2082       VisitTemplateArgument(P);
2083     break;
2084   }
2085 }
2086 
2087 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
2088                    bool Canonical) const {
2089   StmtProfilerWithPointers Profiler(ID, Context, Canonical);
2090   Profiler.Visit(this);
2091 }
2092 
2093 void Stmt::ProcessODRHash(llvm::FoldingSetNodeID &ID,
2094                           class ODRHash &Hash) const {
2095   StmtProfilerWithoutPointers Profiler(ID, Hash);
2096   Profiler.Visit(this);
2097 }
2098