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