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::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
767     const OMPTargetTeamsDistributeParallelForSimdDirective *S) {
768   VisitOMPLoopDirective(S);
769 }
770 
771 void StmtProfiler::VisitExpr(const Expr *S) {
772   VisitStmt(S);
773 }
774 
775 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
776   VisitExpr(S);
777   if (!Canonical)
778     VisitNestedNameSpecifier(S->getQualifier());
779   VisitDecl(S->getDecl());
780   if (!Canonical)
781     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
782 }
783 
784 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
785   VisitExpr(S);
786   ID.AddInteger(S->getIdentType());
787 }
788 
789 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
790   VisitExpr(S);
791   S->getValue().Profile(ID);
792   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
793 }
794 
795 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
796   VisitExpr(S);
797   ID.AddInteger(S->getKind());
798   ID.AddInteger(S->getValue());
799 }
800 
801 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
802   VisitExpr(S);
803   S->getValue().Profile(ID);
804   ID.AddBoolean(S->isExact());
805   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
806 }
807 
808 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
809   VisitExpr(S);
810 }
811 
812 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
813   VisitExpr(S);
814   ID.AddString(S->getBytes());
815   ID.AddInteger(S->getKind());
816 }
817 
818 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
819   VisitExpr(S);
820 }
821 
822 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
823   VisitExpr(S);
824 }
825 
826 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
827   VisitExpr(S);
828   ID.AddInteger(S->getOpcode());
829 }
830 
831 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
832   VisitType(S->getTypeSourceInfo()->getType());
833   unsigned n = S->getNumComponents();
834   for (unsigned i = 0; i < n; ++i) {
835     const OffsetOfNode &ON = S->getComponent(i);
836     ID.AddInteger(ON.getKind());
837     switch (ON.getKind()) {
838     case OffsetOfNode::Array:
839       // Expressions handled below.
840       break;
841 
842     case OffsetOfNode::Field:
843       VisitDecl(ON.getField());
844       break;
845 
846     case OffsetOfNode::Identifier:
847       ID.AddPointer(ON.getFieldName());
848       break;
849 
850     case OffsetOfNode::Base:
851       // These nodes are implicit, and therefore don't need profiling.
852       break;
853     }
854   }
855 
856   VisitExpr(S);
857 }
858 
859 void
860 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
861   VisitExpr(S);
862   ID.AddInteger(S->getKind());
863   if (S->isArgumentType())
864     VisitType(S->getArgumentType());
865 }
866 
867 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
868   VisitExpr(S);
869 }
870 
871 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
872   VisitExpr(S);
873 }
874 
875 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
876   VisitExpr(S);
877 }
878 
879 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
880   VisitExpr(S);
881   VisitDecl(S->getMemberDecl());
882   if (!Canonical)
883     VisitNestedNameSpecifier(S->getQualifier());
884   ID.AddBoolean(S->isArrow());
885 }
886 
887 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
888   VisitExpr(S);
889   ID.AddBoolean(S->isFileScope());
890 }
891 
892 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
893   VisitExpr(S);
894 }
895 
896 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
897   VisitCastExpr(S);
898   ID.AddInteger(S->getValueKind());
899 }
900 
901 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
902   VisitCastExpr(S);
903   VisitType(S->getTypeAsWritten());
904 }
905 
906 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
907   VisitExplicitCastExpr(S);
908 }
909 
910 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
911   VisitExpr(S);
912   ID.AddInteger(S->getOpcode());
913 }
914 
915 void
916 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
917   VisitBinaryOperator(S);
918 }
919 
920 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
921   VisitExpr(S);
922 }
923 
924 void StmtProfiler::VisitBinaryConditionalOperator(
925     const BinaryConditionalOperator *S) {
926   VisitExpr(S);
927 }
928 
929 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
930   VisitExpr(S);
931   VisitDecl(S->getLabel());
932 }
933 
934 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
935   VisitExpr(S);
936 }
937 
938 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
939   VisitExpr(S);
940 }
941 
942 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
943   VisitExpr(S);
944 }
945 
946 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
947   VisitExpr(S);
948 }
949 
950 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
951   VisitExpr(S);
952 }
953 
954 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
955   VisitExpr(S);
956 }
957 
958 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
959   if (S->getSyntacticForm()) {
960     VisitInitListExpr(S->getSyntacticForm());
961     return;
962   }
963 
964   VisitExpr(S);
965 }
966 
967 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
968   VisitExpr(S);
969   ID.AddBoolean(S->usesGNUSyntax());
970   for (const DesignatedInitExpr::Designator &D : S->designators()) {
971     if (D.isFieldDesignator()) {
972       ID.AddInteger(0);
973       VisitName(D.getFieldName());
974       continue;
975     }
976 
977     if (D.isArrayDesignator()) {
978       ID.AddInteger(1);
979     } else {
980       assert(D.isArrayRangeDesignator());
981       ID.AddInteger(2);
982     }
983     ID.AddInteger(D.getFirstExprIndex());
984   }
985 }
986 
987 // Seems that if VisitInitListExpr() only works on the syntactic form of an
988 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
989 void StmtProfiler::VisitDesignatedInitUpdateExpr(
990     const DesignatedInitUpdateExpr *S) {
991   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
992                    "initializer");
993 }
994 
995 void StmtProfiler::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *S) {
996   VisitExpr(S);
997 }
998 
999 void StmtProfiler::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *S) {
1000   VisitExpr(S);
1001 }
1002 
1003 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
1004   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
1005 }
1006 
1007 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
1008   VisitExpr(S);
1009 }
1010 
1011 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
1012   VisitExpr(S);
1013   VisitName(&S->getAccessor());
1014 }
1015 
1016 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
1017   VisitExpr(S);
1018   VisitDecl(S->getBlockDecl());
1019 }
1020 
1021 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
1022   VisitExpr(S);
1023   for (unsigned i = 0; i != S->getNumAssocs(); ++i) {
1024     QualType T = S->getAssocType(i);
1025     if (T.isNull())
1026       ID.AddPointer(nullptr);
1027     else
1028       VisitType(T);
1029     VisitExpr(S->getAssocExpr(i));
1030   }
1031 }
1032 
1033 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
1034   VisitExpr(S);
1035   for (PseudoObjectExpr::const_semantics_iterator
1036          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
1037     // Normally, we would not profile the source expressions of OVEs.
1038     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
1039       Visit(OVE->getSourceExpr());
1040 }
1041 
1042 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
1043   VisitExpr(S);
1044   ID.AddInteger(S->getOp());
1045 }
1046 
1047 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
1048                                           UnaryOperatorKind &UnaryOp,
1049                                           BinaryOperatorKind &BinaryOp) {
1050   switch (S->getOperator()) {
1051   case OO_None:
1052   case OO_New:
1053   case OO_Delete:
1054   case OO_Array_New:
1055   case OO_Array_Delete:
1056   case OO_Arrow:
1057   case OO_Call:
1058   case OO_Conditional:
1059   case OO_Coawait:
1060   case NUM_OVERLOADED_OPERATORS:
1061     llvm_unreachable("Invalid operator call kind");
1062 
1063   case OO_Plus:
1064     if (S->getNumArgs() == 1) {
1065       UnaryOp = UO_Plus;
1066       return Stmt::UnaryOperatorClass;
1067     }
1068 
1069     BinaryOp = BO_Add;
1070     return Stmt::BinaryOperatorClass;
1071 
1072   case OO_Minus:
1073     if (S->getNumArgs() == 1) {
1074       UnaryOp = UO_Minus;
1075       return Stmt::UnaryOperatorClass;
1076     }
1077 
1078     BinaryOp = BO_Sub;
1079     return Stmt::BinaryOperatorClass;
1080 
1081   case OO_Star:
1082     if (S->getNumArgs() == 1) {
1083       UnaryOp = UO_Deref;
1084       return Stmt::UnaryOperatorClass;
1085     }
1086 
1087     BinaryOp = BO_Mul;
1088     return Stmt::BinaryOperatorClass;
1089 
1090   case OO_Slash:
1091     BinaryOp = BO_Div;
1092     return Stmt::BinaryOperatorClass;
1093 
1094   case OO_Percent:
1095     BinaryOp = BO_Rem;
1096     return Stmt::BinaryOperatorClass;
1097 
1098   case OO_Caret:
1099     BinaryOp = BO_Xor;
1100     return Stmt::BinaryOperatorClass;
1101 
1102   case OO_Amp:
1103     if (S->getNumArgs() == 1) {
1104       UnaryOp = UO_AddrOf;
1105       return Stmt::UnaryOperatorClass;
1106     }
1107 
1108     BinaryOp = BO_And;
1109     return Stmt::BinaryOperatorClass;
1110 
1111   case OO_Pipe:
1112     BinaryOp = BO_Or;
1113     return Stmt::BinaryOperatorClass;
1114 
1115   case OO_Tilde:
1116     UnaryOp = UO_Not;
1117     return Stmt::UnaryOperatorClass;
1118 
1119   case OO_Exclaim:
1120     UnaryOp = UO_LNot;
1121     return Stmt::UnaryOperatorClass;
1122 
1123   case OO_Equal:
1124     BinaryOp = BO_Assign;
1125     return Stmt::BinaryOperatorClass;
1126 
1127   case OO_Less:
1128     BinaryOp = BO_LT;
1129     return Stmt::BinaryOperatorClass;
1130 
1131   case OO_Greater:
1132     BinaryOp = BO_GT;
1133     return Stmt::BinaryOperatorClass;
1134 
1135   case OO_PlusEqual:
1136     BinaryOp = BO_AddAssign;
1137     return Stmt::CompoundAssignOperatorClass;
1138 
1139   case OO_MinusEqual:
1140     BinaryOp = BO_SubAssign;
1141     return Stmt::CompoundAssignOperatorClass;
1142 
1143   case OO_StarEqual:
1144     BinaryOp = BO_MulAssign;
1145     return Stmt::CompoundAssignOperatorClass;
1146 
1147   case OO_SlashEqual:
1148     BinaryOp = BO_DivAssign;
1149     return Stmt::CompoundAssignOperatorClass;
1150 
1151   case OO_PercentEqual:
1152     BinaryOp = BO_RemAssign;
1153     return Stmt::CompoundAssignOperatorClass;
1154 
1155   case OO_CaretEqual:
1156     BinaryOp = BO_XorAssign;
1157     return Stmt::CompoundAssignOperatorClass;
1158 
1159   case OO_AmpEqual:
1160     BinaryOp = BO_AndAssign;
1161     return Stmt::CompoundAssignOperatorClass;
1162 
1163   case OO_PipeEqual:
1164     BinaryOp = BO_OrAssign;
1165     return Stmt::CompoundAssignOperatorClass;
1166 
1167   case OO_LessLess:
1168     BinaryOp = BO_Shl;
1169     return Stmt::BinaryOperatorClass;
1170 
1171   case OO_GreaterGreater:
1172     BinaryOp = BO_Shr;
1173     return Stmt::BinaryOperatorClass;
1174 
1175   case OO_LessLessEqual:
1176     BinaryOp = BO_ShlAssign;
1177     return Stmt::CompoundAssignOperatorClass;
1178 
1179   case OO_GreaterGreaterEqual:
1180     BinaryOp = BO_ShrAssign;
1181     return Stmt::CompoundAssignOperatorClass;
1182 
1183   case OO_EqualEqual:
1184     BinaryOp = BO_EQ;
1185     return Stmt::BinaryOperatorClass;
1186 
1187   case OO_ExclaimEqual:
1188     BinaryOp = BO_NE;
1189     return Stmt::BinaryOperatorClass;
1190 
1191   case OO_LessEqual:
1192     BinaryOp = BO_LE;
1193     return Stmt::BinaryOperatorClass;
1194 
1195   case OO_GreaterEqual:
1196     BinaryOp = BO_GE;
1197     return Stmt::BinaryOperatorClass;
1198 
1199   case OO_AmpAmp:
1200     BinaryOp = BO_LAnd;
1201     return Stmt::BinaryOperatorClass;
1202 
1203   case OO_PipePipe:
1204     BinaryOp = BO_LOr;
1205     return Stmt::BinaryOperatorClass;
1206 
1207   case OO_PlusPlus:
1208     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1209                                   : UO_PostInc;
1210     return Stmt::UnaryOperatorClass;
1211 
1212   case OO_MinusMinus:
1213     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1214                                   : UO_PostDec;
1215     return Stmt::UnaryOperatorClass;
1216 
1217   case OO_Comma:
1218     BinaryOp = BO_Comma;
1219     return Stmt::BinaryOperatorClass;
1220 
1221   case OO_ArrowStar:
1222     BinaryOp = BO_PtrMemI;
1223     return Stmt::BinaryOperatorClass;
1224 
1225   case OO_Subscript:
1226     return Stmt::ArraySubscriptExprClass;
1227   }
1228 
1229   llvm_unreachable("Invalid overloaded operator expression");
1230 }
1231 
1232 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1233   if (S->isTypeDependent()) {
1234     // Type-dependent operator calls are profiled like their underlying
1235     // syntactic operator.
1236     //
1237     // An operator call to operator-> is always implicit, so just skip it. The
1238     // enclosing MemberExpr will profile the actual member access.
1239     if (S->getOperator() == OO_Arrow)
1240       return Visit(S->getArg(0));
1241 
1242     UnaryOperatorKind UnaryOp = UO_Extension;
1243     BinaryOperatorKind BinaryOp = BO_Comma;
1244     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1245 
1246     ID.AddInteger(SC);
1247     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1248       Visit(S->getArg(I));
1249     if (SC == Stmt::UnaryOperatorClass)
1250       ID.AddInteger(UnaryOp);
1251     else if (SC == Stmt::BinaryOperatorClass ||
1252              SC == Stmt::CompoundAssignOperatorClass)
1253       ID.AddInteger(BinaryOp);
1254     else
1255       assert(SC == Stmt::ArraySubscriptExprClass);
1256 
1257     return;
1258   }
1259 
1260   VisitCallExpr(S);
1261   ID.AddInteger(S->getOperator());
1262 }
1263 
1264 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1265   VisitCallExpr(S);
1266 }
1267 
1268 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1269   VisitCallExpr(S);
1270 }
1271 
1272 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1273   VisitExpr(S);
1274 }
1275 
1276 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1277   VisitExplicitCastExpr(S);
1278 }
1279 
1280 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1281   VisitCXXNamedCastExpr(S);
1282 }
1283 
1284 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1285   VisitCXXNamedCastExpr(S);
1286 }
1287 
1288 void
1289 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1290   VisitCXXNamedCastExpr(S);
1291 }
1292 
1293 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1294   VisitCXXNamedCastExpr(S);
1295 }
1296 
1297 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1298   VisitCallExpr(S);
1299 }
1300 
1301 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1302   VisitExpr(S);
1303   ID.AddBoolean(S->getValue());
1304 }
1305 
1306 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1307   VisitExpr(S);
1308 }
1309 
1310 void StmtProfiler::VisitCXXStdInitializerListExpr(
1311     const CXXStdInitializerListExpr *S) {
1312   VisitExpr(S);
1313 }
1314 
1315 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1316   VisitExpr(S);
1317   if (S->isTypeOperand())
1318     VisitType(S->getTypeOperandSourceInfo()->getType());
1319 }
1320 
1321 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1322   VisitExpr(S);
1323   if (S->isTypeOperand())
1324     VisitType(S->getTypeOperandSourceInfo()->getType());
1325 }
1326 
1327 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1328   VisitExpr(S);
1329   VisitDecl(S->getPropertyDecl());
1330 }
1331 
1332 void StmtProfiler::VisitMSPropertySubscriptExpr(
1333     const MSPropertySubscriptExpr *S) {
1334   VisitExpr(S);
1335 }
1336 
1337 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1338   VisitExpr(S);
1339   ID.AddBoolean(S->isImplicit());
1340 }
1341 
1342 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1343   VisitExpr(S);
1344 }
1345 
1346 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1347   VisitExpr(S);
1348   VisitDecl(S->getParam());
1349 }
1350 
1351 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1352   VisitExpr(S);
1353   VisitDecl(S->getField());
1354 }
1355 
1356 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1357   VisitExpr(S);
1358   VisitDecl(
1359          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1360 }
1361 
1362 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1363   VisitExpr(S);
1364   VisitDecl(S->getConstructor());
1365   ID.AddBoolean(S->isElidable());
1366 }
1367 
1368 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
1369     const CXXInheritedCtorInitExpr *S) {
1370   VisitExpr(S);
1371   VisitDecl(S->getConstructor());
1372 }
1373 
1374 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1375   VisitExplicitCastExpr(S);
1376 }
1377 
1378 void
1379 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1380   VisitCXXConstructExpr(S);
1381 }
1382 
1383 void
1384 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1385   VisitExpr(S);
1386   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1387                                  CEnd = S->explicit_capture_end();
1388        C != CEnd; ++C) {
1389     ID.AddInteger(C->getCaptureKind());
1390     switch (C->getCaptureKind()) {
1391     case LCK_StarThis:
1392     case LCK_This:
1393       break;
1394     case LCK_ByRef:
1395     case LCK_ByCopy:
1396       VisitDecl(C->getCapturedVar());
1397       ID.AddBoolean(C->isPackExpansion());
1398       break;
1399     case LCK_VLAType:
1400       llvm_unreachable("VLA type in explicit captures.");
1401     }
1402   }
1403   // Note: If we actually needed to be able to match lambda
1404   // expressions, we would have to consider parameters and return type
1405   // here, among other things.
1406   VisitStmt(S->getBody());
1407 }
1408 
1409 void
1410 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1411   VisitExpr(S);
1412 }
1413 
1414 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1415   VisitExpr(S);
1416   ID.AddBoolean(S->isGlobalDelete());
1417   ID.AddBoolean(S->isArrayForm());
1418   VisitDecl(S->getOperatorDelete());
1419 }
1420 
1421 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1422   VisitExpr(S);
1423   VisitType(S->getAllocatedType());
1424   VisitDecl(S->getOperatorNew());
1425   VisitDecl(S->getOperatorDelete());
1426   ID.AddBoolean(S->isArray());
1427   ID.AddInteger(S->getNumPlacementArgs());
1428   ID.AddBoolean(S->isGlobalNew());
1429   ID.AddBoolean(S->isParenTypeId());
1430   ID.AddInteger(S->getInitializationStyle());
1431 }
1432 
1433 void
1434 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1435   VisitExpr(S);
1436   ID.AddBoolean(S->isArrow());
1437   VisitNestedNameSpecifier(S->getQualifier());
1438   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1439   if (S->getScopeTypeInfo())
1440     VisitType(S->getScopeTypeInfo()->getType());
1441   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1442   if (S->getDestroyedTypeInfo())
1443     VisitType(S->getDestroyedType());
1444   else
1445     ID.AddPointer(S->getDestroyedTypeIdentifier());
1446 }
1447 
1448 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1449   VisitExpr(S);
1450   VisitNestedNameSpecifier(S->getQualifier());
1451   VisitName(S->getName());
1452   ID.AddBoolean(S->hasExplicitTemplateArgs());
1453   if (S->hasExplicitTemplateArgs())
1454     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1455 }
1456 
1457 void
1458 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1459   VisitOverloadExpr(S);
1460 }
1461 
1462 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1463   VisitExpr(S);
1464   ID.AddInteger(S->getTrait());
1465   ID.AddInteger(S->getNumArgs());
1466   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1467     VisitType(S->getArg(I)->getType());
1468 }
1469 
1470 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1471   VisitExpr(S);
1472   ID.AddInteger(S->getTrait());
1473   VisitType(S->getQueriedType());
1474 }
1475 
1476 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1477   VisitExpr(S);
1478   ID.AddInteger(S->getTrait());
1479   VisitExpr(S->getQueriedExpression());
1480 }
1481 
1482 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1483     const DependentScopeDeclRefExpr *S) {
1484   VisitExpr(S);
1485   VisitName(S->getDeclName());
1486   VisitNestedNameSpecifier(S->getQualifier());
1487   ID.AddBoolean(S->hasExplicitTemplateArgs());
1488   if (S->hasExplicitTemplateArgs())
1489     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1490 }
1491 
1492 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1493   VisitExpr(S);
1494 }
1495 
1496 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1497     const CXXUnresolvedConstructExpr *S) {
1498   VisitExpr(S);
1499   VisitType(S->getTypeAsWritten());
1500 }
1501 
1502 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1503     const CXXDependentScopeMemberExpr *S) {
1504   ID.AddBoolean(S->isImplicitAccess());
1505   if (!S->isImplicitAccess()) {
1506     VisitExpr(S);
1507     ID.AddBoolean(S->isArrow());
1508   }
1509   VisitNestedNameSpecifier(S->getQualifier());
1510   VisitName(S->getMember());
1511   ID.AddBoolean(S->hasExplicitTemplateArgs());
1512   if (S->hasExplicitTemplateArgs())
1513     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1514 }
1515 
1516 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1517   ID.AddBoolean(S->isImplicitAccess());
1518   if (!S->isImplicitAccess()) {
1519     VisitExpr(S);
1520     ID.AddBoolean(S->isArrow());
1521   }
1522   VisitNestedNameSpecifier(S->getQualifier());
1523   VisitName(S->getMemberName());
1524   ID.AddBoolean(S->hasExplicitTemplateArgs());
1525   if (S->hasExplicitTemplateArgs())
1526     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1527 }
1528 
1529 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1530   VisitExpr(S);
1531 }
1532 
1533 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1534   VisitExpr(S);
1535 }
1536 
1537 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1538   VisitExpr(S);
1539   VisitDecl(S->getPack());
1540   if (S->isPartiallySubstituted()) {
1541     auto Args = S->getPartialArguments();
1542     ID.AddInteger(Args.size());
1543     for (const auto &TA : Args)
1544       VisitTemplateArgument(TA);
1545   } else {
1546     ID.AddInteger(0);
1547   }
1548 }
1549 
1550 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1551     const SubstNonTypeTemplateParmPackExpr *S) {
1552   VisitExpr(S);
1553   VisitDecl(S->getParameterPack());
1554   VisitTemplateArgument(S->getArgumentPack());
1555 }
1556 
1557 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
1558     const SubstNonTypeTemplateParmExpr *E) {
1559   // Profile exactly as the replacement expression.
1560   Visit(E->getReplacement());
1561 }
1562 
1563 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
1564   VisitExpr(S);
1565   VisitDecl(S->getParameterPack());
1566   ID.AddInteger(S->getNumExpansions());
1567   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
1568     VisitDecl(*I);
1569 }
1570 
1571 void StmtProfiler::VisitMaterializeTemporaryExpr(
1572                                            const MaterializeTemporaryExpr *S) {
1573   VisitExpr(S);
1574 }
1575 
1576 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
1577   VisitExpr(S);
1578   ID.AddInteger(S->getOperator());
1579 }
1580 
1581 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
1582   VisitStmt(S);
1583 }
1584 
1585 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
1586   VisitStmt(S);
1587 }
1588 
1589 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
1590   VisitExpr(S);
1591 }
1592 
1593 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
1594   VisitExpr(S);
1595 }
1596 
1597 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
1598   VisitExpr(E);
1599 }
1600 
1601 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
1602   VisitExpr(E);
1603 }
1604 
1605 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
1606   VisitExpr(S);
1607 }
1608 
1609 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
1610   VisitExpr(E);
1611 }
1612 
1613 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
1614   VisitExpr(E);
1615 }
1616 
1617 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
1618   VisitExpr(E);
1619 }
1620 
1621 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
1622   VisitExpr(S);
1623   VisitType(S->getEncodedType());
1624 }
1625 
1626 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
1627   VisitExpr(S);
1628   VisitName(S->getSelector());
1629 }
1630 
1631 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
1632   VisitExpr(S);
1633   VisitDecl(S->getProtocol());
1634 }
1635 
1636 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
1637   VisitExpr(S);
1638   VisitDecl(S->getDecl());
1639   ID.AddBoolean(S->isArrow());
1640   ID.AddBoolean(S->isFreeIvar());
1641 }
1642 
1643 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
1644   VisitExpr(S);
1645   if (S->isImplicitProperty()) {
1646     VisitDecl(S->getImplicitPropertyGetter());
1647     VisitDecl(S->getImplicitPropertySetter());
1648   } else {
1649     VisitDecl(S->getExplicitProperty());
1650   }
1651   if (S->isSuperReceiver()) {
1652     ID.AddBoolean(S->isSuperReceiver());
1653     VisitType(S->getSuperReceiverType());
1654   }
1655 }
1656 
1657 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
1658   VisitExpr(S);
1659   VisitDecl(S->getAtIndexMethodDecl());
1660   VisitDecl(S->setAtIndexMethodDecl());
1661 }
1662 
1663 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
1664   VisitExpr(S);
1665   VisitName(S->getSelector());
1666   VisitDecl(S->getMethodDecl());
1667 }
1668 
1669 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
1670   VisitExpr(S);
1671   ID.AddBoolean(S->isArrow());
1672 }
1673 
1674 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
1675   VisitExpr(S);
1676   ID.AddBoolean(S->getValue());
1677 }
1678 
1679 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
1680     const ObjCIndirectCopyRestoreExpr *S) {
1681   VisitExpr(S);
1682   ID.AddBoolean(S->shouldCopy());
1683 }
1684 
1685 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
1686   VisitExplicitCastExpr(S);
1687   ID.AddBoolean(S->getBridgeKind());
1688 }
1689 
1690 void StmtProfiler::VisitObjCAvailabilityCheckExpr(
1691     const ObjCAvailabilityCheckExpr *S) {
1692   VisitExpr(S);
1693 }
1694 
1695 void StmtProfiler::VisitDecl(const Decl *D) {
1696   ID.AddInteger(D? D->getKind() : 0);
1697 
1698   if (Canonical && D) {
1699     if (const NonTypeTemplateParmDecl *NTTP =
1700           dyn_cast<NonTypeTemplateParmDecl>(D)) {
1701       ID.AddInteger(NTTP->getDepth());
1702       ID.AddInteger(NTTP->getIndex());
1703       ID.AddBoolean(NTTP->isParameterPack());
1704       VisitType(NTTP->getType());
1705       return;
1706     }
1707 
1708     if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
1709       // The Itanium C++ ABI uses the type, scope depth, and scope
1710       // index of a parameter when mangling expressions that involve
1711       // function parameters, so we will use the parameter's type for
1712       // establishing function parameter identity. That way, our
1713       // definition of "equivalent" (per C++ [temp.over.link]) is at
1714       // least as strong as the definition of "equivalent" used for
1715       // name mangling.
1716       VisitType(Parm->getType());
1717       ID.AddInteger(Parm->getFunctionScopeDepth());
1718       ID.AddInteger(Parm->getFunctionScopeIndex());
1719       return;
1720     }
1721 
1722     if (const TemplateTypeParmDecl *TTP =
1723           dyn_cast<TemplateTypeParmDecl>(D)) {
1724       ID.AddInteger(TTP->getDepth());
1725       ID.AddInteger(TTP->getIndex());
1726       ID.AddBoolean(TTP->isParameterPack());
1727       return;
1728     }
1729 
1730     if (const TemplateTemplateParmDecl *TTP =
1731           dyn_cast<TemplateTemplateParmDecl>(D)) {
1732       ID.AddInteger(TTP->getDepth());
1733       ID.AddInteger(TTP->getIndex());
1734       ID.AddBoolean(TTP->isParameterPack());
1735       return;
1736     }
1737   }
1738 
1739   ID.AddPointer(D? D->getCanonicalDecl() : nullptr);
1740 }
1741 
1742 void StmtProfiler::VisitType(QualType T) {
1743   if (Canonical)
1744     T = Context.getCanonicalType(T);
1745 
1746   ID.AddPointer(T.getAsOpaquePtr());
1747 }
1748 
1749 void StmtProfiler::VisitName(DeclarationName Name) {
1750   ID.AddPointer(Name.getAsOpaquePtr());
1751 }
1752 
1753 void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
1754   if (Canonical)
1755     NNS = Context.getCanonicalNestedNameSpecifier(NNS);
1756   ID.AddPointer(NNS);
1757 }
1758 
1759 void StmtProfiler::VisitTemplateName(TemplateName Name) {
1760   if (Canonical)
1761     Name = Context.getCanonicalTemplateName(Name);
1762 
1763   Name.Profile(ID);
1764 }
1765 
1766 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
1767                                           unsigned NumArgs) {
1768   ID.AddInteger(NumArgs);
1769   for (unsigned I = 0; I != NumArgs; ++I)
1770     VisitTemplateArgument(Args[I].getArgument());
1771 }
1772 
1773 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
1774   // Mostly repetitive with TemplateArgument::Profile!
1775   ID.AddInteger(Arg.getKind());
1776   switch (Arg.getKind()) {
1777   case TemplateArgument::Null:
1778     break;
1779 
1780   case TemplateArgument::Type:
1781     VisitType(Arg.getAsType());
1782     break;
1783 
1784   case TemplateArgument::Template:
1785   case TemplateArgument::TemplateExpansion:
1786     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
1787     break;
1788 
1789   case TemplateArgument::Declaration:
1790     VisitDecl(Arg.getAsDecl());
1791     break;
1792 
1793   case TemplateArgument::NullPtr:
1794     VisitType(Arg.getNullPtrType());
1795     break;
1796 
1797   case TemplateArgument::Integral:
1798     Arg.getAsIntegral().Profile(ID);
1799     VisitType(Arg.getIntegralType());
1800     break;
1801 
1802   case TemplateArgument::Expression:
1803     Visit(Arg.getAsExpr());
1804     break;
1805 
1806   case TemplateArgument::Pack:
1807     for (const auto &P : Arg.pack_elements())
1808       VisitTemplateArgument(P);
1809     break;
1810   }
1811 }
1812 
1813 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
1814                    bool Canonical) const {
1815   StmtProfiler Profiler(ID, Context, Canonical);
1816   Profiler.Visit(this);
1817 }
1818