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