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