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::VisitOMPTeamsDistributeParallelForDirective(
747     const OMPTeamsDistributeParallelForDirective *S) {
748   VisitOMPLoopDirective(S);
749 }
750 
751 void StmtProfiler::VisitOMPTargetTeamsDirective(
752     const OMPTargetTeamsDirective *S) {
753   VisitOMPExecutableDirective(S);
754 }
755 
756 void StmtProfiler::VisitOMPTargetTeamsDistributeDirective(
757     const OMPTargetTeamsDistributeDirective *S) {
758   VisitOMPLoopDirective(S);
759 }
760 
761 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForDirective(
762     const OMPTargetTeamsDistributeParallelForDirective *S) {
763   VisitOMPLoopDirective(S);
764 }
765 
766 void StmtProfiler::VisitExpr(const Expr *S) {
767   VisitStmt(S);
768 }
769 
770 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
771   VisitExpr(S);
772   if (!Canonical)
773     VisitNestedNameSpecifier(S->getQualifier());
774   VisitDecl(S->getDecl());
775   if (!Canonical)
776     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
777 }
778 
779 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
780   VisitExpr(S);
781   ID.AddInteger(S->getIdentType());
782 }
783 
784 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
785   VisitExpr(S);
786   S->getValue().Profile(ID);
787   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
788 }
789 
790 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
791   VisitExpr(S);
792   ID.AddInteger(S->getKind());
793   ID.AddInteger(S->getValue());
794 }
795 
796 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
797   VisitExpr(S);
798   S->getValue().Profile(ID);
799   ID.AddBoolean(S->isExact());
800   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
801 }
802 
803 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
804   VisitExpr(S);
805 }
806 
807 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
808   VisitExpr(S);
809   ID.AddString(S->getBytes());
810   ID.AddInteger(S->getKind());
811 }
812 
813 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
814   VisitExpr(S);
815 }
816 
817 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
818   VisitExpr(S);
819 }
820 
821 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
822   VisitExpr(S);
823   ID.AddInteger(S->getOpcode());
824 }
825 
826 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
827   VisitType(S->getTypeSourceInfo()->getType());
828   unsigned n = S->getNumComponents();
829   for (unsigned i = 0; i < n; ++i) {
830     const OffsetOfNode &ON = S->getComponent(i);
831     ID.AddInteger(ON.getKind());
832     switch (ON.getKind()) {
833     case OffsetOfNode::Array:
834       // Expressions handled below.
835       break;
836 
837     case OffsetOfNode::Field:
838       VisitDecl(ON.getField());
839       break;
840 
841     case OffsetOfNode::Identifier:
842       ID.AddPointer(ON.getFieldName());
843       break;
844 
845     case OffsetOfNode::Base:
846       // These nodes are implicit, and therefore don't need profiling.
847       break;
848     }
849   }
850 
851   VisitExpr(S);
852 }
853 
854 void
855 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
856   VisitExpr(S);
857   ID.AddInteger(S->getKind());
858   if (S->isArgumentType())
859     VisitType(S->getArgumentType());
860 }
861 
862 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
863   VisitExpr(S);
864 }
865 
866 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
867   VisitExpr(S);
868 }
869 
870 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
871   VisitExpr(S);
872 }
873 
874 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
875   VisitExpr(S);
876   VisitDecl(S->getMemberDecl());
877   if (!Canonical)
878     VisitNestedNameSpecifier(S->getQualifier());
879   ID.AddBoolean(S->isArrow());
880 }
881 
882 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
883   VisitExpr(S);
884   ID.AddBoolean(S->isFileScope());
885 }
886 
887 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
888   VisitExpr(S);
889 }
890 
891 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
892   VisitCastExpr(S);
893   ID.AddInteger(S->getValueKind());
894 }
895 
896 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
897   VisitCastExpr(S);
898   VisitType(S->getTypeAsWritten());
899 }
900 
901 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
902   VisitExplicitCastExpr(S);
903 }
904 
905 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
906   VisitExpr(S);
907   ID.AddInteger(S->getOpcode());
908 }
909 
910 void
911 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
912   VisitBinaryOperator(S);
913 }
914 
915 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
916   VisitExpr(S);
917 }
918 
919 void StmtProfiler::VisitBinaryConditionalOperator(
920     const BinaryConditionalOperator *S) {
921   VisitExpr(S);
922 }
923 
924 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
925   VisitExpr(S);
926   VisitDecl(S->getLabel());
927 }
928 
929 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
930   VisitExpr(S);
931 }
932 
933 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
934   VisitExpr(S);
935 }
936 
937 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
938   VisitExpr(S);
939 }
940 
941 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
942   VisitExpr(S);
943 }
944 
945 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
946   VisitExpr(S);
947 }
948 
949 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
950   VisitExpr(S);
951 }
952 
953 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
954   if (S->getSyntacticForm()) {
955     VisitInitListExpr(S->getSyntacticForm());
956     return;
957   }
958 
959   VisitExpr(S);
960 }
961 
962 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
963   VisitExpr(S);
964   ID.AddBoolean(S->usesGNUSyntax());
965   for (const DesignatedInitExpr::Designator &D : S->designators()) {
966     if (D.isFieldDesignator()) {
967       ID.AddInteger(0);
968       VisitName(D.getFieldName());
969       continue;
970     }
971 
972     if (D.isArrayDesignator()) {
973       ID.AddInteger(1);
974     } else {
975       assert(D.isArrayRangeDesignator());
976       ID.AddInteger(2);
977     }
978     ID.AddInteger(D.getFirstExprIndex());
979   }
980 }
981 
982 // Seems that if VisitInitListExpr() only works on the syntactic form of an
983 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
984 void StmtProfiler::VisitDesignatedInitUpdateExpr(
985     const DesignatedInitUpdateExpr *S) {
986   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
987                    "initializer");
988 }
989 
990 void StmtProfiler::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *S) {
991   VisitExpr(S);
992 }
993 
994 void StmtProfiler::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *S) {
995   VisitExpr(S);
996 }
997 
998 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
999   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
1000 }
1001 
1002 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
1003   VisitExpr(S);
1004 }
1005 
1006 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
1007   VisitExpr(S);
1008   VisitName(&S->getAccessor());
1009 }
1010 
1011 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
1012   VisitExpr(S);
1013   VisitDecl(S->getBlockDecl());
1014 }
1015 
1016 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
1017   VisitExpr(S);
1018   for (unsigned i = 0; i != S->getNumAssocs(); ++i) {
1019     QualType T = S->getAssocType(i);
1020     if (T.isNull())
1021       ID.AddPointer(nullptr);
1022     else
1023       VisitType(T);
1024     VisitExpr(S->getAssocExpr(i));
1025   }
1026 }
1027 
1028 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
1029   VisitExpr(S);
1030   for (PseudoObjectExpr::const_semantics_iterator
1031          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
1032     // Normally, we would not profile the source expressions of OVEs.
1033     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
1034       Visit(OVE->getSourceExpr());
1035 }
1036 
1037 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
1038   VisitExpr(S);
1039   ID.AddInteger(S->getOp());
1040 }
1041 
1042 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
1043                                           UnaryOperatorKind &UnaryOp,
1044                                           BinaryOperatorKind &BinaryOp) {
1045   switch (S->getOperator()) {
1046   case OO_None:
1047   case OO_New:
1048   case OO_Delete:
1049   case OO_Array_New:
1050   case OO_Array_Delete:
1051   case OO_Arrow:
1052   case OO_Call:
1053   case OO_Conditional:
1054   case OO_Coawait:
1055   case NUM_OVERLOADED_OPERATORS:
1056     llvm_unreachable("Invalid operator call kind");
1057 
1058   case OO_Plus:
1059     if (S->getNumArgs() == 1) {
1060       UnaryOp = UO_Plus;
1061       return Stmt::UnaryOperatorClass;
1062     }
1063 
1064     BinaryOp = BO_Add;
1065     return Stmt::BinaryOperatorClass;
1066 
1067   case OO_Minus:
1068     if (S->getNumArgs() == 1) {
1069       UnaryOp = UO_Minus;
1070       return Stmt::UnaryOperatorClass;
1071     }
1072 
1073     BinaryOp = BO_Sub;
1074     return Stmt::BinaryOperatorClass;
1075 
1076   case OO_Star:
1077     if (S->getNumArgs() == 1) {
1078       UnaryOp = UO_Deref;
1079       return Stmt::UnaryOperatorClass;
1080     }
1081 
1082     BinaryOp = BO_Mul;
1083     return Stmt::BinaryOperatorClass;
1084 
1085   case OO_Slash:
1086     BinaryOp = BO_Div;
1087     return Stmt::BinaryOperatorClass;
1088 
1089   case OO_Percent:
1090     BinaryOp = BO_Rem;
1091     return Stmt::BinaryOperatorClass;
1092 
1093   case OO_Caret:
1094     BinaryOp = BO_Xor;
1095     return Stmt::BinaryOperatorClass;
1096 
1097   case OO_Amp:
1098     if (S->getNumArgs() == 1) {
1099       UnaryOp = UO_AddrOf;
1100       return Stmt::UnaryOperatorClass;
1101     }
1102 
1103     BinaryOp = BO_And;
1104     return Stmt::BinaryOperatorClass;
1105 
1106   case OO_Pipe:
1107     BinaryOp = BO_Or;
1108     return Stmt::BinaryOperatorClass;
1109 
1110   case OO_Tilde:
1111     UnaryOp = UO_Not;
1112     return Stmt::UnaryOperatorClass;
1113 
1114   case OO_Exclaim:
1115     UnaryOp = UO_LNot;
1116     return Stmt::UnaryOperatorClass;
1117 
1118   case OO_Equal:
1119     BinaryOp = BO_Assign;
1120     return Stmt::BinaryOperatorClass;
1121 
1122   case OO_Less:
1123     BinaryOp = BO_LT;
1124     return Stmt::BinaryOperatorClass;
1125 
1126   case OO_Greater:
1127     BinaryOp = BO_GT;
1128     return Stmt::BinaryOperatorClass;
1129 
1130   case OO_PlusEqual:
1131     BinaryOp = BO_AddAssign;
1132     return Stmt::CompoundAssignOperatorClass;
1133 
1134   case OO_MinusEqual:
1135     BinaryOp = BO_SubAssign;
1136     return Stmt::CompoundAssignOperatorClass;
1137 
1138   case OO_StarEqual:
1139     BinaryOp = BO_MulAssign;
1140     return Stmt::CompoundAssignOperatorClass;
1141 
1142   case OO_SlashEqual:
1143     BinaryOp = BO_DivAssign;
1144     return Stmt::CompoundAssignOperatorClass;
1145 
1146   case OO_PercentEqual:
1147     BinaryOp = BO_RemAssign;
1148     return Stmt::CompoundAssignOperatorClass;
1149 
1150   case OO_CaretEqual:
1151     BinaryOp = BO_XorAssign;
1152     return Stmt::CompoundAssignOperatorClass;
1153 
1154   case OO_AmpEqual:
1155     BinaryOp = BO_AndAssign;
1156     return Stmt::CompoundAssignOperatorClass;
1157 
1158   case OO_PipeEqual:
1159     BinaryOp = BO_OrAssign;
1160     return Stmt::CompoundAssignOperatorClass;
1161 
1162   case OO_LessLess:
1163     BinaryOp = BO_Shl;
1164     return Stmt::BinaryOperatorClass;
1165 
1166   case OO_GreaterGreater:
1167     BinaryOp = BO_Shr;
1168     return Stmt::BinaryOperatorClass;
1169 
1170   case OO_LessLessEqual:
1171     BinaryOp = BO_ShlAssign;
1172     return Stmt::CompoundAssignOperatorClass;
1173 
1174   case OO_GreaterGreaterEqual:
1175     BinaryOp = BO_ShrAssign;
1176     return Stmt::CompoundAssignOperatorClass;
1177 
1178   case OO_EqualEqual:
1179     BinaryOp = BO_EQ;
1180     return Stmt::BinaryOperatorClass;
1181 
1182   case OO_ExclaimEqual:
1183     BinaryOp = BO_NE;
1184     return Stmt::BinaryOperatorClass;
1185 
1186   case OO_LessEqual:
1187     BinaryOp = BO_LE;
1188     return Stmt::BinaryOperatorClass;
1189 
1190   case OO_GreaterEqual:
1191     BinaryOp = BO_GE;
1192     return Stmt::BinaryOperatorClass;
1193 
1194   case OO_AmpAmp:
1195     BinaryOp = BO_LAnd;
1196     return Stmt::BinaryOperatorClass;
1197 
1198   case OO_PipePipe:
1199     BinaryOp = BO_LOr;
1200     return Stmt::BinaryOperatorClass;
1201 
1202   case OO_PlusPlus:
1203     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1204                                   : UO_PostInc;
1205     return Stmt::UnaryOperatorClass;
1206 
1207   case OO_MinusMinus:
1208     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1209                                   : UO_PostDec;
1210     return Stmt::UnaryOperatorClass;
1211 
1212   case OO_Comma:
1213     BinaryOp = BO_Comma;
1214     return Stmt::BinaryOperatorClass;
1215 
1216   case OO_ArrowStar:
1217     BinaryOp = BO_PtrMemI;
1218     return Stmt::BinaryOperatorClass;
1219 
1220   case OO_Subscript:
1221     return Stmt::ArraySubscriptExprClass;
1222   }
1223 
1224   llvm_unreachable("Invalid overloaded operator expression");
1225 }
1226 
1227 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1228   if (S->isTypeDependent()) {
1229     // Type-dependent operator calls are profiled like their underlying
1230     // syntactic operator.
1231     //
1232     // An operator call to operator-> is always implicit, so just skip it. The
1233     // enclosing MemberExpr will profile the actual member access.
1234     if (S->getOperator() == OO_Arrow)
1235       return Visit(S->getArg(0));
1236 
1237     UnaryOperatorKind UnaryOp = UO_Extension;
1238     BinaryOperatorKind BinaryOp = BO_Comma;
1239     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1240 
1241     ID.AddInteger(SC);
1242     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1243       Visit(S->getArg(I));
1244     if (SC == Stmt::UnaryOperatorClass)
1245       ID.AddInteger(UnaryOp);
1246     else if (SC == Stmt::BinaryOperatorClass ||
1247              SC == Stmt::CompoundAssignOperatorClass)
1248       ID.AddInteger(BinaryOp);
1249     else
1250       assert(SC == Stmt::ArraySubscriptExprClass);
1251 
1252     return;
1253   }
1254 
1255   VisitCallExpr(S);
1256   ID.AddInteger(S->getOperator());
1257 }
1258 
1259 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1260   VisitCallExpr(S);
1261 }
1262 
1263 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1264   VisitCallExpr(S);
1265 }
1266 
1267 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1268   VisitExpr(S);
1269 }
1270 
1271 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1272   VisitExplicitCastExpr(S);
1273 }
1274 
1275 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1276   VisitCXXNamedCastExpr(S);
1277 }
1278 
1279 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1280   VisitCXXNamedCastExpr(S);
1281 }
1282 
1283 void
1284 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1285   VisitCXXNamedCastExpr(S);
1286 }
1287 
1288 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1289   VisitCXXNamedCastExpr(S);
1290 }
1291 
1292 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1293   VisitCallExpr(S);
1294 }
1295 
1296 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1297   VisitExpr(S);
1298   ID.AddBoolean(S->getValue());
1299 }
1300 
1301 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1302   VisitExpr(S);
1303 }
1304 
1305 void StmtProfiler::VisitCXXStdInitializerListExpr(
1306     const CXXStdInitializerListExpr *S) {
1307   VisitExpr(S);
1308 }
1309 
1310 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1311   VisitExpr(S);
1312   if (S->isTypeOperand())
1313     VisitType(S->getTypeOperandSourceInfo()->getType());
1314 }
1315 
1316 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1317   VisitExpr(S);
1318   if (S->isTypeOperand())
1319     VisitType(S->getTypeOperandSourceInfo()->getType());
1320 }
1321 
1322 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1323   VisitExpr(S);
1324   VisitDecl(S->getPropertyDecl());
1325 }
1326 
1327 void StmtProfiler::VisitMSPropertySubscriptExpr(
1328     const MSPropertySubscriptExpr *S) {
1329   VisitExpr(S);
1330 }
1331 
1332 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1333   VisitExpr(S);
1334   ID.AddBoolean(S->isImplicit());
1335 }
1336 
1337 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1338   VisitExpr(S);
1339 }
1340 
1341 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1342   VisitExpr(S);
1343   VisitDecl(S->getParam());
1344 }
1345 
1346 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1347   VisitExpr(S);
1348   VisitDecl(S->getField());
1349 }
1350 
1351 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1352   VisitExpr(S);
1353   VisitDecl(
1354          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1355 }
1356 
1357 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1358   VisitExpr(S);
1359   VisitDecl(S->getConstructor());
1360   ID.AddBoolean(S->isElidable());
1361 }
1362 
1363 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
1364     const CXXInheritedCtorInitExpr *S) {
1365   VisitExpr(S);
1366   VisitDecl(S->getConstructor());
1367 }
1368 
1369 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1370   VisitExplicitCastExpr(S);
1371 }
1372 
1373 void
1374 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1375   VisitCXXConstructExpr(S);
1376 }
1377 
1378 void
1379 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1380   VisitExpr(S);
1381   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1382                                  CEnd = S->explicit_capture_end();
1383        C != CEnd; ++C) {
1384     ID.AddInteger(C->getCaptureKind());
1385     switch (C->getCaptureKind()) {
1386     case LCK_StarThis:
1387     case LCK_This:
1388       break;
1389     case LCK_ByRef:
1390     case LCK_ByCopy:
1391       VisitDecl(C->getCapturedVar());
1392       ID.AddBoolean(C->isPackExpansion());
1393       break;
1394     case LCK_VLAType:
1395       llvm_unreachable("VLA type in explicit captures.");
1396     }
1397   }
1398   // Note: If we actually needed to be able to match lambda
1399   // expressions, we would have to consider parameters and return type
1400   // here, among other things.
1401   VisitStmt(S->getBody());
1402 }
1403 
1404 void
1405 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1406   VisitExpr(S);
1407 }
1408 
1409 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1410   VisitExpr(S);
1411   ID.AddBoolean(S->isGlobalDelete());
1412   ID.AddBoolean(S->isArrayForm());
1413   VisitDecl(S->getOperatorDelete());
1414 }
1415 
1416 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1417   VisitExpr(S);
1418   VisitType(S->getAllocatedType());
1419   VisitDecl(S->getOperatorNew());
1420   VisitDecl(S->getOperatorDelete());
1421   ID.AddBoolean(S->isArray());
1422   ID.AddInteger(S->getNumPlacementArgs());
1423   ID.AddBoolean(S->isGlobalNew());
1424   ID.AddBoolean(S->isParenTypeId());
1425   ID.AddInteger(S->getInitializationStyle());
1426 }
1427 
1428 void
1429 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1430   VisitExpr(S);
1431   ID.AddBoolean(S->isArrow());
1432   VisitNestedNameSpecifier(S->getQualifier());
1433   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1434   if (S->getScopeTypeInfo())
1435     VisitType(S->getScopeTypeInfo()->getType());
1436   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1437   if (S->getDestroyedTypeInfo())
1438     VisitType(S->getDestroyedType());
1439   else
1440     ID.AddPointer(S->getDestroyedTypeIdentifier());
1441 }
1442 
1443 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1444   VisitExpr(S);
1445   VisitNestedNameSpecifier(S->getQualifier());
1446   VisitName(S->getName());
1447   ID.AddBoolean(S->hasExplicitTemplateArgs());
1448   if (S->hasExplicitTemplateArgs())
1449     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1450 }
1451 
1452 void
1453 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1454   VisitOverloadExpr(S);
1455 }
1456 
1457 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1458   VisitExpr(S);
1459   ID.AddInteger(S->getTrait());
1460   ID.AddInteger(S->getNumArgs());
1461   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1462     VisitType(S->getArg(I)->getType());
1463 }
1464 
1465 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1466   VisitExpr(S);
1467   ID.AddInteger(S->getTrait());
1468   VisitType(S->getQueriedType());
1469 }
1470 
1471 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1472   VisitExpr(S);
1473   ID.AddInteger(S->getTrait());
1474   VisitExpr(S->getQueriedExpression());
1475 }
1476 
1477 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1478     const DependentScopeDeclRefExpr *S) {
1479   VisitExpr(S);
1480   VisitName(S->getDeclName());
1481   VisitNestedNameSpecifier(S->getQualifier());
1482   ID.AddBoolean(S->hasExplicitTemplateArgs());
1483   if (S->hasExplicitTemplateArgs())
1484     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1485 }
1486 
1487 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1488   VisitExpr(S);
1489 }
1490 
1491 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1492     const CXXUnresolvedConstructExpr *S) {
1493   VisitExpr(S);
1494   VisitType(S->getTypeAsWritten());
1495 }
1496 
1497 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1498     const CXXDependentScopeMemberExpr *S) {
1499   ID.AddBoolean(S->isImplicitAccess());
1500   if (!S->isImplicitAccess()) {
1501     VisitExpr(S);
1502     ID.AddBoolean(S->isArrow());
1503   }
1504   VisitNestedNameSpecifier(S->getQualifier());
1505   VisitName(S->getMember());
1506   ID.AddBoolean(S->hasExplicitTemplateArgs());
1507   if (S->hasExplicitTemplateArgs())
1508     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1509 }
1510 
1511 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1512   ID.AddBoolean(S->isImplicitAccess());
1513   if (!S->isImplicitAccess()) {
1514     VisitExpr(S);
1515     ID.AddBoolean(S->isArrow());
1516   }
1517   VisitNestedNameSpecifier(S->getQualifier());
1518   VisitName(S->getMemberName());
1519   ID.AddBoolean(S->hasExplicitTemplateArgs());
1520   if (S->hasExplicitTemplateArgs())
1521     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1522 }
1523 
1524 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1525   VisitExpr(S);
1526 }
1527 
1528 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1529   VisitExpr(S);
1530 }
1531 
1532 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1533   VisitExpr(S);
1534   VisitDecl(S->getPack());
1535   if (S->isPartiallySubstituted()) {
1536     auto Args = S->getPartialArguments();
1537     ID.AddInteger(Args.size());
1538     for (const auto &TA : Args)
1539       VisitTemplateArgument(TA);
1540   } else {
1541     ID.AddInteger(0);
1542   }
1543 }
1544 
1545 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1546     const SubstNonTypeTemplateParmPackExpr *S) {
1547   VisitExpr(S);
1548   VisitDecl(S->getParameterPack());
1549   VisitTemplateArgument(S->getArgumentPack());
1550 }
1551 
1552 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
1553     const SubstNonTypeTemplateParmExpr *E) {
1554   // Profile exactly as the replacement expression.
1555   Visit(E->getReplacement());
1556 }
1557 
1558 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
1559   VisitExpr(S);
1560   VisitDecl(S->getParameterPack());
1561   ID.AddInteger(S->getNumExpansions());
1562   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
1563     VisitDecl(*I);
1564 }
1565 
1566 void StmtProfiler::VisitMaterializeTemporaryExpr(
1567                                            const MaterializeTemporaryExpr *S) {
1568   VisitExpr(S);
1569 }
1570 
1571 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
1572   VisitExpr(S);
1573   ID.AddInteger(S->getOperator());
1574 }
1575 
1576 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
1577   VisitStmt(S);
1578 }
1579 
1580 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
1581   VisitStmt(S);
1582 }
1583 
1584 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
1585   VisitExpr(S);
1586 }
1587 
1588 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
1589   VisitExpr(S);
1590 }
1591 
1592 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
1593   VisitExpr(E);
1594 }
1595 
1596 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
1597   VisitExpr(E);
1598 }
1599 
1600 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
1601   VisitExpr(S);
1602 }
1603 
1604 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
1605   VisitExpr(E);
1606 }
1607 
1608 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
1609   VisitExpr(E);
1610 }
1611 
1612 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
1613   VisitExpr(E);
1614 }
1615 
1616 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
1617   VisitExpr(S);
1618   VisitType(S->getEncodedType());
1619 }
1620 
1621 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
1622   VisitExpr(S);
1623   VisitName(S->getSelector());
1624 }
1625 
1626 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
1627   VisitExpr(S);
1628   VisitDecl(S->getProtocol());
1629 }
1630 
1631 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
1632   VisitExpr(S);
1633   VisitDecl(S->getDecl());
1634   ID.AddBoolean(S->isArrow());
1635   ID.AddBoolean(S->isFreeIvar());
1636 }
1637 
1638 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
1639   VisitExpr(S);
1640   if (S->isImplicitProperty()) {
1641     VisitDecl(S->getImplicitPropertyGetter());
1642     VisitDecl(S->getImplicitPropertySetter());
1643   } else {
1644     VisitDecl(S->getExplicitProperty());
1645   }
1646   if (S->isSuperReceiver()) {
1647     ID.AddBoolean(S->isSuperReceiver());
1648     VisitType(S->getSuperReceiverType());
1649   }
1650 }
1651 
1652 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
1653   VisitExpr(S);
1654   VisitDecl(S->getAtIndexMethodDecl());
1655   VisitDecl(S->setAtIndexMethodDecl());
1656 }
1657 
1658 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
1659   VisitExpr(S);
1660   VisitName(S->getSelector());
1661   VisitDecl(S->getMethodDecl());
1662 }
1663 
1664 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
1665   VisitExpr(S);
1666   ID.AddBoolean(S->isArrow());
1667 }
1668 
1669 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
1670   VisitExpr(S);
1671   ID.AddBoolean(S->getValue());
1672 }
1673 
1674 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
1675     const ObjCIndirectCopyRestoreExpr *S) {
1676   VisitExpr(S);
1677   ID.AddBoolean(S->shouldCopy());
1678 }
1679 
1680 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
1681   VisitExplicitCastExpr(S);
1682   ID.AddBoolean(S->getBridgeKind());
1683 }
1684 
1685 void StmtProfiler::VisitObjCAvailabilityCheckExpr(
1686     const ObjCAvailabilityCheckExpr *S) {
1687   VisitExpr(S);
1688 }
1689 
1690 void StmtProfiler::VisitDecl(const Decl *D) {
1691   ID.AddInteger(D? D->getKind() : 0);
1692 
1693   if (Canonical && D) {
1694     if (const NonTypeTemplateParmDecl *NTTP =
1695           dyn_cast<NonTypeTemplateParmDecl>(D)) {
1696       ID.AddInteger(NTTP->getDepth());
1697       ID.AddInteger(NTTP->getIndex());
1698       ID.AddBoolean(NTTP->isParameterPack());
1699       VisitType(NTTP->getType());
1700       return;
1701     }
1702 
1703     if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
1704       // The Itanium C++ ABI uses the type, scope depth, and scope
1705       // index of a parameter when mangling expressions that involve
1706       // function parameters, so we will use the parameter's type for
1707       // establishing function parameter identity. That way, our
1708       // definition of "equivalent" (per C++ [temp.over.link]) is at
1709       // least as strong as the definition of "equivalent" used for
1710       // name mangling.
1711       VisitType(Parm->getType());
1712       ID.AddInteger(Parm->getFunctionScopeDepth());
1713       ID.AddInteger(Parm->getFunctionScopeIndex());
1714       return;
1715     }
1716 
1717     if (const TemplateTypeParmDecl *TTP =
1718           dyn_cast<TemplateTypeParmDecl>(D)) {
1719       ID.AddInteger(TTP->getDepth());
1720       ID.AddInteger(TTP->getIndex());
1721       ID.AddBoolean(TTP->isParameterPack());
1722       return;
1723     }
1724 
1725     if (const TemplateTemplateParmDecl *TTP =
1726           dyn_cast<TemplateTemplateParmDecl>(D)) {
1727       ID.AddInteger(TTP->getDepth());
1728       ID.AddInteger(TTP->getIndex());
1729       ID.AddBoolean(TTP->isParameterPack());
1730       return;
1731     }
1732   }
1733 
1734   ID.AddPointer(D? D->getCanonicalDecl() : nullptr);
1735 }
1736 
1737 void StmtProfiler::VisitType(QualType T) {
1738   if (Canonical)
1739     T = Context.getCanonicalType(T);
1740 
1741   ID.AddPointer(T.getAsOpaquePtr());
1742 }
1743 
1744 void StmtProfiler::VisitName(DeclarationName Name) {
1745   ID.AddPointer(Name.getAsOpaquePtr());
1746 }
1747 
1748 void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
1749   if (Canonical)
1750     NNS = Context.getCanonicalNestedNameSpecifier(NNS);
1751   ID.AddPointer(NNS);
1752 }
1753 
1754 void StmtProfiler::VisitTemplateName(TemplateName Name) {
1755   if (Canonical)
1756     Name = Context.getCanonicalTemplateName(Name);
1757 
1758   Name.Profile(ID);
1759 }
1760 
1761 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
1762                                           unsigned NumArgs) {
1763   ID.AddInteger(NumArgs);
1764   for (unsigned I = 0; I != NumArgs; ++I)
1765     VisitTemplateArgument(Args[I].getArgument());
1766 }
1767 
1768 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
1769   // Mostly repetitive with TemplateArgument::Profile!
1770   ID.AddInteger(Arg.getKind());
1771   switch (Arg.getKind()) {
1772   case TemplateArgument::Null:
1773     break;
1774 
1775   case TemplateArgument::Type:
1776     VisitType(Arg.getAsType());
1777     break;
1778 
1779   case TemplateArgument::Template:
1780   case TemplateArgument::TemplateExpansion:
1781     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
1782     break;
1783 
1784   case TemplateArgument::Declaration:
1785     VisitDecl(Arg.getAsDecl());
1786     break;
1787 
1788   case TemplateArgument::NullPtr:
1789     VisitType(Arg.getNullPtrType());
1790     break;
1791 
1792   case TemplateArgument::Integral:
1793     Arg.getAsIntegral().Profile(ID);
1794     VisitType(Arg.getIntegralType());
1795     break;
1796 
1797   case TemplateArgument::Expression:
1798     Visit(Arg.getAsExpr());
1799     break;
1800 
1801   case TemplateArgument::Pack:
1802     for (const auto &P : Arg.pack_elements())
1803       VisitTemplateArgument(P);
1804     break;
1805   }
1806 }
1807 
1808 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
1809                    bool Canonical) const {
1810   StmtProfiler Profiler(ID, Context, Canonical);
1811   Profiler.Visit(this);
1812 }
1813