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