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