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 void OMPClauseProfiler::VisitOMPOrderClause(const OMPOrderClause *C) {}
779 } // namespace
780 
781 void
782 StmtProfiler::VisitOMPExecutableDirective(const OMPExecutableDirective *S) {
783   VisitStmt(S);
784   OMPClauseProfiler P(this);
785   ArrayRef<OMPClause *> Clauses = S->clauses();
786   for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E = Clauses.end();
787        I != E; ++I)
788     if (*I)
789       P.Visit(*I);
790 }
791 
792 void StmtProfiler::VisitOMPLoopDirective(const OMPLoopDirective *S) {
793   VisitOMPExecutableDirective(S);
794 }
795 
796 void StmtProfiler::VisitOMPParallelDirective(const OMPParallelDirective *S) {
797   VisitOMPExecutableDirective(S);
798 }
799 
800 void StmtProfiler::VisitOMPSimdDirective(const OMPSimdDirective *S) {
801   VisitOMPLoopDirective(S);
802 }
803 
804 void StmtProfiler::VisitOMPForDirective(const OMPForDirective *S) {
805   VisitOMPLoopDirective(S);
806 }
807 
808 void StmtProfiler::VisitOMPForSimdDirective(const OMPForSimdDirective *S) {
809   VisitOMPLoopDirective(S);
810 }
811 
812 void StmtProfiler::VisitOMPSectionsDirective(const OMPSectionsDirective *S) {
813   VisitOMPExecutableDirective(S);
814 }
815 
816 void StmtProfiler::VisitOMPSectionDirective(const OMPSectionDirective *S) {
817   VisitOMPExecutableDirective(S);
818 }
819 
820 void StmtProfiler::VisitOMPSingleDirective(const OMPSingleDirective *S) {
821   VisitOMPExecutableDirective(S);
822 }
823 
824 void StmtProfiler::VisitOMPMasterDirective(const OMPMasterDirective *S) {
825   VisitOMPExecutableDirective(S);
826 }
827 
828 void StmtProfiler::VisitOMPCriticalDirective(const OMPCriticalDirective *S) {
829   VisitOMPExecutableDirective(S);
830   VisitName(S->getDirectiveName().getName());
831 }
832 
833 void
834 StmtProfiler::VisitOMPParallelForDirective(const OMPParallelForDirective *S) {
835   VisitOMPLoopDirective(S);
836 }
837 
838 void StmtProfiler::VisitOMPParallelForSimdDirective(
839     const OMPParallelForSimdDirective *S) {
840   VisitOMPLoopDirective(S);
841 }
842 
843 void StmtProfiler::VisitOMPParallelMasterDirective(
844     const OMPParallelMasterDirective *S) {
845   VisitOMPExecutableDirective(S);
846 }
847 
848 void StmtProfiler::VisitOMPParallelSectionsDirective(
849     const OMPParallelSectionsDirective *S) {
850   VisitOMPExecutableDirective(S);
851 }
852 
853 void StmtProfiler::VisitOMPTaskDirective(const OMPTaskDirective *S) {
854   VisitOMPExecutableDirective(S);
855 }
856 
857 void StmtProfiler::VisitOMPTaskyieldDirective(const OMPTaskyieldDirective *S) {
858   VisitOMPExecutableDirective(S);
859 }
860 
861 void StmtProfiler::VisitOMPBarrierDirective(const OMPBarrierDirective *S) {
862   VisitOMPExecutableDirective(S);
863 }
864 
865 void StmtProfiler::VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *S) {
866   VisitOMPExecutableDirective(S);
867 }
868 
869 void StmtProfiler::VisitOMPTaskgroupDirective(const OMPTaskgroupDirective *S) {
870   VisitOMPExecutableDirective(S);
871   if (const Expr *E = S->getReductionRef())
872     VisitStmt(E);
873 }
874 
875 void StmtProfiler::VisitOMPFlushDirective(const OMPFlushDirective *S) {
876   VisitOMPExecutableDirective(S);
877 }
878 
879 void StmtProfiler::VisitOMPOrderedDirective(const OMPOrderedDirective *S) {
880   VisitOMPExecutableDirective(S);
881 }
882 
883 void StmtProfiler::VisitOMPAtomicDirective(const OMPAtomicDirective *S) {
884   VisitOMPExecutableDirective(S);
885 }
886 
887 void StmtProfiler::VisitOMPTargetDirective(const OMPTargetDirective *S) {
888   VisitOMPExecutableDirective(S);
889 }
890 
891 void StmtProfiler::VisitOMPTargetDataDirective(const OMPTargetDataDirective *S) {
892   VisitOMPExecutableDirective(S);
893 }
894 
895 void StmtProfiler::VisitOMPTargetEnterDataDirective(
896     const OMPTargetEnterDataDirective *S) {
897   VisitOMPExecutableDirective(S);
898 }
899 
900 void StmtProfiler::VisitOMPTargetExitDataDirective(
901     const OMPTargetExitDataDirective *S) {
902   VisitOMPExecutableDirective(S);
903 }
904 
905 void StmtProfiler::VisitOMPTargetParallelDirective(
906     const OMPTargetParallelDirective *S) {
907   VisitOMPExecutableDirective(S);
908 }
909 
910 void StmtProfiler::VisitOMPTargetParallelForDirective(
911     const OMPTargetParallelForDirective *S) {
912   VisitOMPExecutableDirective(S);
913 }
914 
915 void StmtProfiler::VisitOMPTeamsDirective(const OMPTeamsDirective *S) {
916   VisitOMPExecutableDirective(S);
917 }
918 
919 void StmtProfiler::VisitOMPCancellationPointDirective(
920     const OMPCancellationPointDirective *S) {
921   VisitOMPExecutableDirective(S);
922 }
923 
924 void StmtProfiler::VisitOMPCancelDirective(const OMPCancelDirective *S) {
925   VisitOMPExecutableDirective(S);
926 }
927 
928 void StmtProfiler::VisitOMPTaskLoopDirective(const OMPTaskLoopDirective *S) {
929   VisitOMPLoopDirective(S);
930 }
931 
932 void StmtProfiler::VisitOMPTaskLoopSimdDirective(
933     const OMPTaskLoopSimdDirective *S) {
934   VisitOMPLoopDirective(S);
935 }
936 
937 void StmtProfiler::VisitOMPMasterTaskLoopDirective(
938     const OMPMasterTaskLoopDirective *S) {
939   VisitOMPLoopDirective(S);
940 }
941 
942 void StmtProfiler::VisitOMPMasterTaskLoopSimdDirective(
943     const OMPMasterTaskLoopSimdDirective *S) {
944   VisitOMPLoopDirective(S);
945 }
946 
947 void StmtProfiler::VisitOMPParallelMasterTaskLoopDirective(
948     const OMPParallelMasterTaskLoopDirective *S) {
949   VisitOMPLoopDirective(S);
950 }
951 
952 void StmtProfiler::VisitOMPParallelMasterTaskLoopSimdDirective(
953     const OMPParallelMasterTaskLoopSimdDirective *S) {
954   VisitOMPLoopDirective(S);
955 }
956 
957 void StmtProfiler::VisitOMPDistributeDirective(
958     const OMPDistributeDirective *S) {
959   VisitOMPLoopDirective(S);
960 }
961 
962 void OMPClauseProfiler::VisitOMPDistScheduleClause(
963     const OMPDistScheduleClause *C) {
964   VistOMPClauseWithPreInit(C);
965   if (auto *S = C->getChunkSize())
966     Profiler->VisitStmt(S);
967 }
968 
969 void OMPClauseProfiler::VisitOMPDefaultmapClause(const OMPDefaultmapClause *) {}
970 
971 void StmtProfiler::VisitOMPTargetUpdateDirective(
972     const OMPTargetUpdateDirective *S) {
973   VisitOMPExecutableDirective(S);
974 }
975 
976 void StmtProfiler::VisitOMPDistributeParallelForDirective(
977     const OMPDistributeParallelForDirective *S) {
978   VisitOMPLoopDirective(S);
979 }
980 
981 void StmtProfiler::VisitOMPDistributeParallelForSimdDirective(
982     const OMPDistributeParallelForSimdDirective *S) {
983   VisitOMPLoopDirective(S);
984 }
985 
986 void StmtProfiler::VisitOMPDistributeSimdDirective(
987     const OMPDistributeSimdDirective *S) {
988   VisitOMPLoopDirective(S);
989 }
990 
991 void StmtProfiler::VisitOMPTargetParallelForSimdDirective(
992     const OMPTargetParallelForSimdDirective *S) {
993   VisitOMPLoopDirective(S);
994 }
995 
996 void StmtProfiler::VisitOMPTargetSimdDirective(
997     const OMPTargetSimdDirective *S) {
998   VisitOMPLoopDirective(S);
999 }
1000 
1001 void StmtProfiler::VisitOMPTeamsDistributeDirective(
1002     const OMPTeamsDistributeDirective *S) {
1003   VisitOMPLoopDirective(S);
1004 }
1005 
1006 void StmtProfiler::VisitOMPTeamsDistributeSimdDirective(
1007     const OMPTeamsDistributeSimdDirective *S) {
1008   VisitOMPLoopDirective(S);
1009 }
1010 
1011 void StmtProfiler::VisitOMPTeamsDistributeParallelForSimdDirective(
1012     const OMPTeamsDistributeParallelForSimdDirective *S) {
1013   VisitOMPLoopDirective(S);
1014 }
1015 
1016 void StmtProfiler::VisitOMPTeamsDistributeParallelForDirective(
1017     const OMPTeamsDistributeParallelForDirective *S) {
1018   VisitOMPLoopDirective(S);
1019 }
1020 
1021 void StmtProfiler::VisitOMPTargetTeamsDirective(
1022     const OMPTargetTeamsDirective *S) {
1023   VisitOMPExecutableDirective(S);
1024 }
1025 
1026 void StmtProfiler::VisitOMPTargetTeamsDistributeDirective(
1027     const OMPTargetTeamsDistributeDirective *S) {
1028   VisitOMPLoopDirective(S);
1029 }
1030 
1031 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForDirective(
1032     const OMPTargetTeamsDistributeParallelForDirective *S) {
1033   VisitOMPLoopDirective(S);
1034 }
1035 
1036 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
1037     const OMPTargetTeamsDistributeParallelForSimdDirective *S) {
1038   VisitOMPLoopDirective(S);
1039 }
1040 
1041 void StmtProfiler::VisitOMPTargetTeamsDistributeSimdDirective(
1042     const OMPTargetTeamsDistributeSimdDirective *S) {
1043   VisitOMPLoopDirective(S);
1044 }
1045 
1046 void StmtProfiler::VisitExpr(const Expr *S) {
1047   VisitStmt(S);
1048 }
1049 
1050 void StmtProfiler::VisitConstantExpr(const ConstantExpr *S) {
1051   VisitExpr(S);
1052 }
1053 
1054 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
1055   VisitExpr(S);
1056   if (!Canonical)
1057     VisitNestedNameSpecifier(S->getQualifier());
1058   VisitDecl(S->getDecl());
1059   if (!Canonical) {
1060     ID.AddBoolean(S->hasExplicitTemplateArgs());
1061     if (S->hasExplicitTemplateArgs())
1062       VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1063   }
1064 }
1065 
1066 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
1067   VisitExpr(S);
1068   ID.AddInteger(S->getIdentKind());
1069 }
1070 
1071 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
1072   VisitExpr(S);
1073   S->getValue().Profile(ID);
1074   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1075 }
1076 
1077 void StmtProfiler::VisitFixedPointLiteral(const FixedPointLiteral *S) {
1078   VisitExpr(S);
1079   S->getValue().Profile(ID);
1080   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1081 }
1082 
1083 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
1084   VisitExpr(S);
1085   ID.AddInteger(S->getKind());
1086   ID.AddInteger(S->getValue());
1087 }
1088 
1089 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
1090   VisitExpr(S);
1091   S->getValue().Profile(ID);
1092   ID.AddBoolean(S->isExact());
1093   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
1094 }
1095 
1096 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
1097   VisitExpr(S);
1098 }
1099 
1100 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
1101   VisitExpr(S);
1102   ID.AddString(S->getBytes());
1103   ID.AddInteger(S->getKind());
1104 }
1105 
1106 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
1107   VisitExpr(S);
1108 }
1109 
1110 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
1111   VisitExpr(S);
1112 }
1113 
1114 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
1115   VisitExpr(S);
1116   ID.AddInteger(S->getOpcode());
1117 }
1118 
1119 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
1120   VisitType(S->getTypeSourceInfo()->getType());
1121   unsigned n = S->getNumComponents();
1122   for (unsigned i = 0; i < n; ++i) {
1123     const OffsetOfNode &ON = S->getComponent(i);
1124     ID.AddInteger(ON.getKind());
1125     switch (ON.getKind()) {
1126     case OffsetOfNode::Array:
1127       // Expressions handled below.
1128       break;
1129 
1130     case OffsetOfNode::Field:
1131       VisitDecl(ON.getField());
1132       break;
1133 
1134     case OffsetOfNode::Identifier:
1135       VisitIdentifierInfo(ON.getFieldName());
1136       break;
1137 
1138     case OffsetOfNode::Base:
1139       // These nodes are implicit, and therefore don't need profiling.
1140       break;
1141     }
1142   }
1143 
1144   VisitExpr(S);
1145 }
1146 
1147 void
1148 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
1149   VisitExpr(S);
1150   ID.AddInteger(S->getKind());
1151   if (S->isArgumentType())
1152     VisitType(S->getArgumentType());
1153 }
1154 
1155 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
1156   VisitExpr(S);
1157 }
1158 
1159 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
1160   VisitExpr(S);
1161 }
1162 
1163 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
1164   VisitExpr(S);
1165 }
1166 
1167 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
1168   VisitExpr(S);
1169   VisitDecl(S->getMemberDecl());
1170   if (!Canonical)
1171     VisitNestedNameSpecifier(S->getQualifier());
1172   ID.AddBoolean(S->isArrow());
1173 }
1174 
1175 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
1176   VisitExpr(S);
1177   ID.AddBoolean(S->isFileScope());
1178 }
1179 
1180 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
1181   VisitExpr(S);
1182 }
1183 
1184 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
1185   VisitCastExpr(S);
1186   ID.AddInteger(S->getValueKind());
1187 }
1188 
1189 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
1190   VisitCastExpr(S);
1191   VisitType(S->getTypeAsWritten());
1192 }
1193 
1194 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
1195   VisitExplicitCastExpr(S);
1196 }
1197 
1198 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
1199   VisitExpr(S);
1200   ID.AddInteger(S->getOpcode());
1201 }
1202 
1203 void
1204 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
1205   VisitBinaryOperator(S);
1206 }
1207 
1208 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
1209   VisitExpr(S);
1210 }
1211 
1212 void StmtProfiler::VisitBinaryConditionalOperator(
1213     const BinaryConditionalOperator *S) {
1214   VisitExpr(S);
1215 }
1216 
1217 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
1218   VisitExpr(S);
1219   VisitDecl(S->getLabel());
1220 }
1221 
1222 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
1223   VisitExpr(S);
1224 }
1225 
1226 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
1227   VisitExpr(S);
1228 }
1229 
1230 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
1231   VisitExpr(S);
1232 }
1233 
1234 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
1235   VisitExpr(S);
1236 }
1237 
1238 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
1239   VisitExpr(S);
1240 }
1241 
1242 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
1243   VisitExpr(S);
1244 }
1245 
1246 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
1247   if (S->getSyntacticForm()) {
1248     VisitInitListExpr(S->getSyntacticForm());
1249     return;
1250   }
1251 
1252   VisitExpr(S);
1253 }
1254 
1255 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
1256   VisitExpr(S);
1257   ID.AddBoolean(S->usesGNUSyntax());
1258   for (const DesignatedInitExpr::Designator &D : S->designators()) {
1259     if (D.isFieldDesignator()) {
1260       ID.AddInteger(0);
1261       VisitName(D.getFieldName());
1262       continue;
1263     }
1264 
1265     if (D.isArrayDesignator()) {
1266       ID.AddInteger(1);
1267     } else {
1268       assert(D.isArrayRangeDesignator());
1269       ID.AddInteger(2);
1270     }
1271     ID.AddInteger(D.getFirstExprIndex());
1272   }
1273 }
1274 
1275 // Seems that if VisitInitListExpr() only works on the syntactic form of an
1276 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
1277 void StmtProfiler::VisitDesignatedInitUpdateExpr(
1278     const DesignatedInitUpdateExpr *S) {
1279   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
1280                    "initializer");
1281 }
1282 
1283 void StmtProfiler::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *S) {
1284   VisitExpr(S);
1285 }
1286 
1287 void StmtProfiler::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *S) {
1288   VisitExpr(S);
1289 }
1290 
1291 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
1292   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
1293 }
1294 
1295 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
1296   VisitExpr(S);
1297 }
1298 
1299 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
1300   VisitExpr(S);
1301   VisitName(&S->getAccessor());
1302 }
1303 
1304 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
1305   VisitExpr(S);
1306   VisitDecl(S->getBlockDecl());
1307 }
1308 
1309 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
1310   VisitExpr(S);
1311   for (const GenericSelectionExpr::ConstAssociation Assoc :
1312        S->associations()) {
1313     QualType T = Assoc.getType();
1314     if (T.isNull())
1315       ID.AddPointer(nullptr);
1316     else
1317       VisitType(T);
1318     VisitExpr(Assoc.getAssociationExpr());
1319   }
1320 }
1321 
1322 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
1323   VisitExpr(S);
1324   for (PseudoObjectExpr::const_semantics_iterator
1325          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
1326     // Normally, we would not profile the source expressions of OVEs.
1327     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
1328       Visit(OVE->getSourceExpr());
1329 }
1330 
1331 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
1332   VisitExpr(S);
1333   ID.AddInteger(S->getOp());
1334 }
1335 
1336 void StmtProfiler::VisitConceptSpecializationExpr(
1337                                            const ConceptSpecializationExpr *S) {
1338   VisitExpr(S);
1339   VisitDecl(S->getNamedConcept());
1340   for (const TemplateArgument &Arg : S->getTemplateArguments())
1341     VisitTemplateArgument(Arg);
1342 }
1343 
1344 void StmtProfiler::VisitRequiresExpr(const RequiresExpr *S) {
1345   VisitExpr(S);
1346   ID.AddInteger(S->getLocalParameters().size());
1347   for (ParmVarDecl *LocalParam : S->getLocalParameters())
1348     VisitDecl(LocalParam);
1349   ID.AddInteger(S->getRequirements().size());
1350   for (concepts::Requirement *Req : S->getRequirements()) {
1351     if (auto *TypeReq = dyn_cast<concepts::TypeRequirement>(Req)) {
1352       ID.AddInteger(concepts::Requirement::RK_Type);
1353       ID.AddBoolean(TypeReq->isSubstitutionFailure());
1354       if (!TypeReq->isSubstitutionFailure())
1355         VisitType(TypeReq->getType()->getType());
1356     } else if (auto *ExprReq = dyn_cast<concepts::ExprRequirement>(Req)) {
1357       ID.AddInteger(concepts::Requirement::RK_Compound);
1358       ID.AddBoolean(ExprReq->isExprSubstitutionFailure());
1359       if (!ExprReq->isExprSubstitutionFailure())
1360         Visit(ExprReq->getExpr());
1361       // C++2a [expr.prim.req.compound]p1 Example:
1362       //    [...] The compound-requirement in C1 requires that x++ is a valid
1363       //    expression. It is equivalent to the simple-requirement x++; [...]
1364       // We therefore do not profile isSimple() here.
1365       ID.AddBoolean(ExprReq->getNoexceptLoc().isValid());
1366       const concepts::ExprRequirement::ReturnTypeRequirement &RetReq =
1367           ExprReq->getReturnTypeRequirement();
1368       if (RetReq.isEmpty()) {
1369         ID.AddInteger(0);
1370       } else if (RetReq.isTypeConstraint()) {
1371         ID.AddInteger(1);
1372         Visit(RetReq.getTypeConstraint()->getImmediatelyDeclaredConstraint());
1373       } else {
1374         assert(RetReq.isSubstitutionFailure());
1375         ID.AddInteger(2);
1376       }
1377     } else {
1378       ID.AddInteger(concepts::Requirement::RK_Nested);
1379       auto *NestedReq = cast<concepts::NestedRequirement>(Req);
1380       ID.AddBoolean(NestedReq->isSubstitutionFailure());
1381       if (!NestedReq->isSubstitutionFailure())
1382         Visit(NestedReq->getConstraintExpr());
1383     }
1384   }
1385 }
1386 
1387 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
1388                                           UnaryOperatorKind &UnaryOp,
1389                                           BinaryOperatorKind &BinaryOp) {
1390   switch (S->getOperator()) {
1391   case OO_None:
1392   case OO_New:
1393   case OO_Delete:
1394   case OO_Array_New:
1395   case OO_Array_Delete:
1396   case OO_Arrow:
1397   case OO_Call:
1398   case OO_Conditional:
1399   case NUM_OVERLOADED_OPERATORS:
1400     llvm_unreachable("Invalid operator call kind");
1401 
1402   case OO_Plus:
1403     if (S->getNumArgs() == 1) {
1404       UnaryOp = UO_Plus;
1405       return Stmt::UnaryOperatorClass;
1406     }
1407 
1408     BinaryOp = BO_Add;
1409     return Stmt::BinaryOperatorClass;
1410 
1411   case OO_Minus:
1412     if (S->getNumArgs() == 1) {
1413       UnaryOp = UO_Minus;
1414       return Stmt::UnaryOperatorClass;
1415     }
1416 
1417     BinaryOp = BO_Sub;
1418     return Stmt::BinaryOperatorClass;
1419 
1420   case OO_Star:
1421     if (S->getNumArgs() == 1) {
1422       UnaryOp = UO_Deref;
1423       return Stmt::UnaryOperatorClass;
1424     }
1425 
1426     BinaryOp = BO_Mul;
1427     return Stmt::BinaryOperatorClass;
1428 
1429   case OO_Slash:
1430     BinaryOp = BO_Div;
1431     return Stmt::BinaryOperatorClass;
1432 
1433   case OO_Percent:
1434     BinaryOp = BO_Rem;
1435     return Stmt::BinaryOperatorClass;
1436 
1437   case OO_Caret:
1438     BinaryOp = BO_Xor;
1439     return Stmt::BinaryOperatorClass;
1440 
1441   case OO_Amp:
1442     if (S->getNumArgs() == 1) {
1443       UnaryOp = UO_AddrOf;
1444       return Stmt::UnaryOperatorClass;
1445     }
1446 
1447     BinaryOp = BO_And;
1448     return Stmt::BinaryOperatorClass;
1449 
1450   case OO_Pipe:
1451     BinaryOp = BO_Or;
1452     return Stmt::BinaryOperatorClass;
1453 
1454   case OO_Tilde:
1455     UnaryOp = UO_Not;
1456     return Stmt::UnaryOperatorClass;
1457 
1458   case OO_Exclaim:
1459     UnaryOp = UO_LNot;
1460     return Stmt::UnaryOperatorClass;
1461 
1462   case OO_Equal:
1463     BinaryOp = BO_Assign;
1464     return Stmt::BinaryOperatorClass;
1465 
1466   case OO_Less:
1467     BinaryOp = BO_LT;
1468     return Stmt::BinaryOperatorClass;
1469 
1470   case OO_Greater:
1471     BinaryOp = BO_GT;
1472     return Stmt::BinaryOperatorClass;
1473 
1474   case OO_PlusEqual:
1475     BinaryOp = BO_AddAssign;
1476     return Stmt::CompoundAssignOperatorClass;
1477 
1478   case OO_MinusEqual:
1479     BinaryOp = BO_SubAssign;
1480     return Stmt::CompoundAssignOperatorClass;
1481 
1482   case OO_StarEqual:
1483     BinaryOp = BO_MulAssign;
1484     return Stmt::CompoundAssignOperatorClass;
1485 
1486   case OO_SlashEqual:
1487     BinaryOp = BO_DivAssign;
1488     return Stmt::CompoundAssignOperatorClass;
1489 
1490   case OO_PercentEqual:
1491     BinaryOp = BO_RemAssign;
1492     return Stmt::CompoundAssignOperatorClass;
1493 
1494   case OO_CaretEqual:
1495     BinaryOp = BO_XorAssign;
1496     return Stmt::CompoundAssignOperatorClass;
1497 
1498   case OO_AmpEqual:
1499     BinaryOp = BO_AndAssign;
1500     return Stmt::CompoundAssignOperatorClass;
1501 
1502   case OO_PipeEqual:
1503     BinaryOp = BO_OrAssign;
1504     return Stmt::CompoundAssignOperatorClass;
1505 
1506   case OO_LessLess:
1507     BinaryOp = BO_Shl;
1508     return Stmt::BinaryOperatorClass;
1509 
1510   case OO_GreaterGreater:
1511     BinaryOp = BO_Shr;
1512     return Stmt::BinaryOperatorClass;
1513 
1514   case OO_LessLessEqual:
1515     BinaryOp = BO_ShlAssign;
1516     return Stmt::CompoundAssignOperatorClass;
1517 
1518   case OO_GreaterGreaterEqual:
1519     BinaryOp = BO_ShrAssign;
1520     return Stmt::CompoundAssignOperatorClass;
1521 
1522   case OO_EqualEqual:
1523     BinaryOp = BO_EQ;
1524     return Stmt::BinaryOperatorClass;
1525 
1526   case OO_ExclaimEqual:
1527     BinaryOp = BO_NE;
1528     return Stmt::BinaryOperatorClass;
1529 
1530   case OO_LessEqual:
1531     BinaryOp = BO_LE;
1532     return Stmt::BinaryOperatorClass;
1533 
1534   case OO_GreaterEqual:
1535     BinaryOp = BO_GE;
1536     return Stmt::BinaryOperatorClass;
1537 
1538   case OO_Spaceship:
1539     // FIXME: Update this once we support <=> expressions.
1540     llvm_unreachable("<=> expressions not supported yet");
1541 
1542   case OO_AmpAmp:
1543     BinaryOp = BO_LAnd;
1544     return Stmt::BinaryOperatorClass;
1545 
1546   case OO_PipePipe:
1547     BinaryOp = BO_LOr;
1548     return Stmt::BinaryOperatorClass;
1549 
1550   case OO_PlusPlus:
1551     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1552                                   : UO_PostInc;
1553     return Stmt::UnaryOperatorClass;
1554 
1555   case OO_MinusMinus:
1556     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1557                                   : UO_PostDec;
1558     return Stmt::UnaryOperatorClass;
1559 
1560   case OO_Comma:
1561     BinaryOp = BO_Comma;
1562     return Stmt::BinaryOperatorClass;
1563 
1564   case OO_ArrowStar:
1565     BinaryOp = BO_PtrMemI;
1566     return Stmt::BinaryOperatorClass;
1567 
1568   case OO_Subscript:
1569     return Stmt::ArraySubscriptExprClass;
1570 
1571   case OO_Coawait:
1572     UnaryOp = UO_Coawait;
1573     return Stmt::UnaryOperatorClass;
1574   }
1575 
1576   llvm_unreachable("Invalid overloaded operator expression");
1577 }
1578 
1579 #if defined(_MSC_VER) && !defined(__clang__)
1580 #if _MSC_VER == 1911
1581 // Work around https://developercommunity.visualstudio.com/content/problem/84002/clang-cl-when-built-with-vc-2017-crashes-cause-vc.html
1582 // MSVC 2017 update 3 miscompiles this function, and a clang built with it
1583 // will crash in stage 2 of a bootstrap build.
1584 #pragma optimize("", off)
1585 #endif
1586 #endif
1587 
1588 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1589   if (S->isTypeDependent()) {
1590     // Type-dependent operator calls are profiled like their underlying
1591     // syntactic operator.
1592     //
1593     // An operator call to operator-> is always implicit, so just skip it. The
1594     // enclosing MemberExpr will profile the actual member access.
1595     if (S->getOperator() == OO_Arrow)
1596       return Visit(S->getArg(0));
1597 
1598     UnaryOperatorKind UnaryOp = UO_Extension;
1599     BinaryOperatorKind BinaryOp = BO_Comma;
1600     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1601 
1602     ID.AddInteger(SC);
1603     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1604       Visit(S->getArg(I));
1605     if (SC == Stmt::UnaryOperatorClass)
1606       ID.AddInteger(UnaryOp);
1607     else if (SC == Stmt::BinaryOperatorClass ||
1608              SC == Stmt::CompoundAssignOperatorClass)
1609       ID.AddInteger(BinaryOp);
1610     else
1611       assert(SC == Stmt::ArraySubscriptExprClass);
1612 
1613     return;
1614   }
1615 
1616   VisitCallExpr(S);
1617   ID.AddInteger(S->getOperator());
1618 }
1619 
1620 void StmtProfiler::VisitCXXRewrittenBinaryOperator(
1621     const CXXRewrittenBinaryOperator *S) {
1622   // If a rewritten operator were ever to be type-dependent, we should profile
1623   // it following its syntactic operator.
1624   assert(!S->isTypeDependent() &&
1625          "resolved rewritten operator should never be type-dependent");
1626   ID.AddBoolean(S->isReversed());
1627   VisitExpr(S->getSemanticForm());
1628 }
1629 
1630 #if defined(_MSC_VER) && !defined(__clang__)
1631 #if _MSC_VER == 1911
1632 #pragma optimize("", on)
1633 #endif
1634 #endif
1635 
1636 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1637   VisitCallExpr(S);
1638 }
1639 
1640 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1641   VisitCallExpr(S);
1642 }
1643 
1644 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1645   VisitExpr(S);
1646 }
1647 
1648 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1649   VisitExplicitCastExpr(S);
1650 }
1651 
1652 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1653   VisitCXXNamedCastExpr(S);
1654 }
1655 
1656 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1657   VisitCXXNamedCastExpr(S);
1658 }
1659 
1660 void
1661 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1662   VisitCXXNamedCastExpr(S);
1663 }
1664 
1665 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1666   VisitCXXNamedCastExpr(S);
1667 }
1668 
1669 void StmtProfiler::VisitBuiltinBitCastExpr(const BuiltinBitCastExpr *S) {
1670   VisitExpr(S);
1671   VisitType(S->getTypeInfoAsWritten()->getType());
1672 }
1673 
1674 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1675   VisitCallExpr(S);
1676 }
1677 
1678 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1679   VisitExpr(S);
1680   ID.AddBoolean(S->getValue());
1681 }
1682 
1683 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1684   VisitExpr(S);
1685 }
1686 
1687 void StmtProfiler::VisitCXXStdInitializerListExpr(
1688     const CXXStdInitializerListExpr *S) {
1689   VisitExpr(S);
1690 }
1691 
1692 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1693   VisitExpr(S);
1694   if (S->isTypeOperand())
1695     VisitType(S->getTypeOperandSourceInfo()->getType());
1696 }
1697 
1698 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1699   VisitExpr(S);
1700   if (S->isTypeOperand())
1701     VisitType(S->getTypeOperandSourceInfo()->getType());
1702 }
1703 
1704 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1705   VisitExpr(S);
1706   VisitDecl(S->getPropertyDecl());
1707 }
1708 
1709 void StmtProfiler::VisitMSPropertySubscriptExpr(
1710     const MSPropertySubscriptExpr *S) {
1711   VisitExpr(S);
1712 }
1713 
1714 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1715   VisitExpr(S);
1716   ID.AddBoolean(S->isImplicit());
1717 }
1718 
1719 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1720   VisitExpr(S);
1721 }
1722 
1723 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1724   VisitExpr(S);
1725   VisitDecl(S->getParam());
1726 }
1727 
1728 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1729   VisitExpr(S);
1730   VisitDecl(S->getField());
1731 }
1732 
1733 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1734   VisitExpr(S);
1735   VisitDecl(
1736          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1737 }
1738 
1739 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1740   VisitExpr(S);
1741   VisitDecl(S->getConstructor());
1742   ID.AddBoolean(S->isElidable());
1743 }
1744 
1745 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
1746     const CXXInheritedCtorInitExpr *S) {
1747   VisitExpr(S);
1748   VisitDecl(S->getConstructor());
1749 }
1750 
1751 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1752   VisitExplicitCastExpr(S);
1753 }
1754 
1755 void
1756 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1757   VisitCXXConstructExpr(S);
1758 }
1759 
1760 void
1761 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1762   VisitExpr(S);
1763   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1764                                  CEnd = S->explicit_capture_end();
1765        C != CEnd; ++C) {
1766     if (C->capturesVLAType())
1767       continue;
1768 
1769     ID.AddInteger(C->getCaptureKind());
1770     switch (C->getCaptureKind()) {
1771     case LCK_StarThis:
1772     case LCK_This:
1773       break;
1774     case LCK_ByRef:
1775     case LCK_ByCopy:
1776       VisitDecl(C->getCapturedVar());
1777       ID.AddBoolean(C->isPackExpansion());
1778       break;
1779     case LCK_VLAType:
1780       llvm_unreachable("VLA type in explicit captures.");
1781     }
1782   }
1783   // Note: If we actually needed to be able to match lambda
1784   // expressions, we would have to consider parameters and return type
1785   // here, among other things.
1786   VisitStmt(S->getBody());
1787 }
1788 
1789 void
1790 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1791   VisitExpr(S);
1792 }
1793 
1794 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1795   VisitExpr(S);
1796   ID.AddBoolean(S->isGlobalDelete());
1797   ID.AddBoolean(S->isArrayForm());
1798   VisitDecl(S->getOperatorDelete());
1799 }
1800 
1801 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1802   VisitExpr(S);
1803   VisitType(S->getAllocatedType());
1804   VisitDecl(S->getOperatorNew());
1805   VisitDecl(S->getOperatorDelete());
1806   ID.AddBoolean(S->isArray());
1807   ID.AddInteger(S->getNumPlacementArgs());
1808   ID.AddBoolean(S->isGlobalNew());
1809   ID.AddBoolean(S->isParenTypeId());
1810   ID.AddInteger(S->getInitializationStyle());
1811 }
1812 
1813 void
1814 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1815   VisitExpr(S);
1816   ID.AddBoolean(S->isArrow());
1817   VisitNestedNameSpecifier(S->getQualifier());
1818   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1819   if (S->getScopeTypeInfo())
1820     VisitType(S->getScopeTypeInfo()->getType());
1821   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1822   if (S->getDestroyedTypeInfo())
1823     VisitType(S->getDestroyedType());
1824   else
1825     VisitIdentifierInfo(S->getDestroyedTypeIdentifier());
1826 }
1827 
1828 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1829   VisitExpr(S);
1830   VisitNestedNameSpecifier(S->getQualifier());
1831   VisitName(S->getName(), /*TreatAsDecl*/ true);
1832   ID.AddBoolean(S->hasExplicitTemplateArgs());
1833   if (S->hasExplicitTemplateArgs())
1834     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1835 }
1836 
1837 void
1838 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1839   VisitOverloadExpr(S);
1840 }
1841 
1842 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1843   VisitExpr(S);
1844   ID.AddInteger(S->getTrait());
1845   ID.AddInteger(S->getNumArgs());
1846   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1847     VisitType(S->getArg(I)->getType());
1848 }
1849 
1850 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1851   VisitExpr(S);
1852   ID.AddInteger(S->getTrait());
1853   VisitType(S->getQueriedType());
1854 }
1855 
1856 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1857   VisitExpr(S);
1858   ID.AddInteger(S->getTrait());
1859   VisitExpr(S->getQueriedExpression());
1860 }
1861 
1862 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1863     const DependentScopeDeclRefExpr *S) {
1864   VisitExpr(S);
1865   VisitName(S->getDeclName());
1866   VisitNestedNameSpecifier(S->getQualifier());
1867   ID.AddBoolean(S->hasExplicitTemplateArgs());
1868   if (S->hasExplicitTemplateArgs())
1869     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1870 }
1871 
1872 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1873   VisitExpr(S);
1874 }
1875 
1876 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1877     const CXXUnresolvedConstructExpr *S) {
1878   VisitExpr(S);
1879   VisitType(S->getTypeAsWritten());
1880   ID.AddInteger(S->isListInitialization());
1881 }
1882 
1883 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1884     const CXXDependentScopeMemberExpr *S) {
1885   ID.AddBoolean(S->isImplicitAccess());
1886   if (!S->isImplicitAccess()) {
1887     VisitExpr(S);
1888     ID.AddBoolean(S->isArrow());
1889   }
1890   VisitNestedNameSpecifier(S->getQualifier());
1891   VisitName(S->getMember());
1892   ID.AddBoolean(S->hasExplicitTemplateArgs());
1893   if (S->hasExplicitTemplateArgs())
1894     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1895 }
1896 
1897 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1898   ID.AddBoolean(S->isImplicitAccess());
1899   if (!S->isImplicitAccess()) {
1900     VisitExpr(S);
1901     ID.AddBoolean(S->isArrow());
1902   }
1903   VisitNestedNameSpecifier(S->getQualifier());
1904   VisitName(S->getMemberName());
1905   ID.AddBoolean(S->hasExplicitTemplateArgs());
1906   if (S->hasExplicitTemplateArgs())
1907     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1908 }
1909 
1910 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1911   VisitExpr(S);
1912 }
1913 
1914 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1915   VisitExpr(S);
1916 }
1917 
1918 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1919   VisitExpr(S);
1920   VisitDecl(S->getPack());
1921   if (S->isPartiallySubstituted()) {
1922     auto Args = S->getPartialArguments();
1923     ID.AddInteger(Args.size());
1924     for (const auto &TA : Args)
1925       VisitTemplateArgument(TA);
1926   } else {
1927     ID.AddInteger(0);
1928   }
1929 }
1930 
1931 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1932     const SubstNonTypeTemplateParmPackExpr *S) {
1933   VisitExpr(S);
1934   VisitDecl(S->getParameterPack());
1935   VisitTemplateArgument(S->getArgumentPack());
1936 }
1937 
1938 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
1939     const SubstNonTypeTemplateParmExpr *E) {
1940   // Profile exactly as the replacement expression.
1941   Visit(E->getReplacement());
1942 }
1943 
1944 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
1945   VisitExpr(S);
1946   VisitDecl(S->getParameterPack());
1947   ID.AddInteger(S->getNumExpansions());
1948   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
1949     VisitDecl(*I);
1950 }
1951 
1952 void StmtProfiler::VisitMaterializeTemporaryExpr(
1953                                            const MaterializeTemporaryExpr *S) {
1954   VisitExpr(S);
1955 }
1956 
1957 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
1958   VisitExpr(S);
1959   ID.AddInteger(S->getOperator());
1960 }
1961 
1962 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
1963   VisitStmt(S);
1964 }
1965 
1966 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
1967   VisitStmt(S);
1968 }
1969 
1970 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
1971   VisitExpr(S);
1972 }
1973 
1974 void StmtProfiler::VisitDependentCoawaitExpr(const DependentCoawaitExpr *S) {
1975   VisitExpr(S);
1976 }
1977 
1978 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
1979   VisitExpr(S);
1980 }
1981 
1982 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
1983   VisitExpr(E);
1984 }
1985 
1986 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
1987   VisitExpr(E);
1988 }
1989 
1990 void StmtProfiler::VisitSourceLocExpr(const SourceLocExpr *E) {
1991   VisitExpr(E);
1992 }
1993 
1994 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
1995   VisitExpr(S);
1996 }
1997 
1998 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
1999   VisitExpr(E);
2000 }
2001 
2002 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
2003   VisitExpr(E);
2004 }
2005 
2006 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
2007   VisitExpr(E);
2008 }
2009 
2010 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
2011   VisitExpr(S);
2012   VisitType(S->getEncodedType());
2013 }
2014 
2015 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
2016   VisitExpr(S);
2017   VisitName(S->getSelector());
2018 }
2019 
2020 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
2021   VisitExpr(S);
2022   VisitDecl(S->getProtocol());
2023 }
2024 
2025 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
2026   VisitExpr(S);
2027   VisitDecl(S->getDecl());
2028   ID.AddBoolean(S->isArrow());
2029   ID.AddBoolean(S->isFreeIvar());
2030 }
2031 
2032 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
2033   VisitExpr(S);
2034   if (S->isImplicitProperty()) {
2035     VisitDecl(S->getImplicitPropertyGetter());
2036     VisitDecl(S->getImplicitPropertySetter());
2037   } else {
2038     VisitDecl(S->getExplicitProperty());
2039   }
2040   if (S->isSuperReceiver()) {
2041     ID.AddBoolean(S->isSuperReceiver());
2042     VisitType(S->getSuperReceiverType());
2043   }
2044 }
2045 
2046 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
2047   VisitExpr(S);
2048   VisitDecl(S->getAtIndexMethodDecl());
2049   VisitDecl(S->setAtIndexMethodDecl());
2050 }
2051 
2052 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
2053   VisitExpr(S);
2054   VisitName(S->getSelector());
2055   VisitDecl(S->getMethodDecl());
2056 }
2057 
2058 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
2059   VisitExpr(S);
2060   ID.AddBoolean(S->isArrow());
2061 }
2062 
2063 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
2064   VisitExpr(S);
2065   ID.AddBoolean(S->getValue());
2066 }
2067 
2068 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
2069     const ObjCIndirectCopyRestoreExpr *S) {
2070   VisitExpr(S);
2071   ID.AddBoolean(S->shouldCopy());
2072 }
2073 
2074 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
2075   VisitExplicitCastExpr(S);
2076   ID.AddBoolean(S->getBridgeKind());
2077 }
2078 
2079 void StmtProfiler::VisitObjCAvailabilityCheckExpr(
2080     const ObjCAvailabilityCheckExpr *S) {
2081   VisitExpr(S);
2082 }
2083 
2084 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
2085                                           unsigned NumArgs) {
2086   ID.AddInteger(NumArgs);
2087   for (unsigned I = 0; I != NumArgs; ++I)
2088     VisitTemplateArgument(Args[I].getArgument());
2089 }
2090 
2091 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
2092   // Mostly repetitive with TemplateArgument::Profile!
2093   ID.AddInteger(Arg.getKind());
2094   switch (Arg.getKind()) {
2095   case TemplateArgument::Null:
2096     break;
2097 
2098   case TemplateArgument::Type:
2099     VisitType(Arg.getAsType());
2100     break;
2101 
2102   case TemplateArgument::Template:
2103   case TemplateArgument::TemplateExpansion:
2104     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
2105     break;
2106 
2107   case TemplateArgument::Declaration:
2108     VisitDecl(Arg.getAsDecl());
2109     break;
2110 
2111   case TemplateArgument::NullPtr:
2112     VisitType(Arg.getNullPtrType());
2113     break;
2114 
2115   case TemplateArgument::Integral:
2116     Arg.getAsIntegral().Profile(ID);
2117     VisitType(Arg.getIntegralType());
2118     break;
2119 
2120   case TemplateArgument::Expression:
2121     Visit(Arg.getAsExpr());
2122     break;
2123 
2124   case TemplateArgument::Pack:
2125     for (const auto &P : Arg.pack_elements())
2126       VisitTemplateArgument(P);
2127     break;
2128   }
2129 }
2130 
2131 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
2132                    bool Canonical) const {
2133   StmtProfilerWithPointers Profiler(ID, Context, Canonical);
2134   Profiler.Visit(this);
2135 }
2136 
2137 void Stmt::ProcessODRHash(llvm::FoldingSetNodeID &ID,
2138                           class ODRHash &Hash) const {
2139   StmtProfilerWithoutPointers Profiler(ID, Hash);
2140   Profiler.Visit(this);
2141 }
2142