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::VisitExpr(const Expr *S) {
737   VisitStmt(S);
738 }
739 
740 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
741   VisitExpr(S);
742   if (!Canonical)
743     VisitNestedNameSpecifier(S->getQualifier());
744   VisitDecl(S->getDecl());
745   if (!Canonical)
746     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
747 }
748 
749 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
750   VisitExpr(S);
751   ID.AddInteger(S->getIdentType());
752 }
753 
754 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
755   VisitExpr(S);
756   S->getValue().Profile(ID);
757   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
758 }
759 
760 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
761   VisitExpr(S);
762   ID.AddInteger(S->getKind());
763   ID.AddInteger(S->getValue());
764 }
765 
766 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
767   VisitExpr(S);
768   S->getValue().Profile(ID);
769   ID.AddBoolean(S->isExact());
770   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
771 }
772 
773 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
774   VisitExpr(S);
775 }
776 
777 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
778   VisitExpr(S);
779   ID.AddString(S->getBytes());
780   ID.AddInteger(S->getKind());
781 }
782 
783 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
784   VisitExpr(S);
785 }
786 
787 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
788   VisitExpr(S);
789 }
790 
791 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
792   VisitExpr(S);
793   ID.AddInteger(S->getOpcode());
794 }
795 
796 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
797   VisitType(S->getTypeSourceInfo()->getType());
798   unsigned n = S->getNumComponents();
799   for (unsigned i = 0; i < n; ++i) {
800     const OffsetOfNode &ON = S->getComponent(i);
801     ID.AddInteger(ON.getKind());
802     switch (ON.getKind()) {
803     case OffsetOfNode::Array:
804       // Expressions handled below.
805       break;
806 
807     case OffsetOfNode::Field:
808       VisitDecl(ON.getField());
809       break;
810 
811     case OffsetOfNode::Identifier:
812       ID.AddPointer(ON.getFieldName());
813       break;
814 
815     case OffsetOfNode::Base:
816       // These nodes are implicit, and therefore don't need profiling.
817       break;
818     }
819   }
820 
821   VisitExpr(S);
822 }
823 
824 void
825 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
826   VisitExpr(S);
827   ID.AddInteger(S->getKind());
828   if (S->isArgumentType())
829     VisitType(S->getArgumentType());
830 }
831 
832 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
833   VisitExpr(S);
834 }
835 
836 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
837   VisitExpr(S);
838 }
839 
840 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
841   VisitExpr(S);
842 }
843 
844 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
845   VisitExpr(S);
846   VisitDecl(S->getMemberDecl());
847   if (!Canonical)
848     VisitNestedNameSpecifier(S->getQualifier());
849   ID.AddBoolean(S->isArrow());
850 }
851 
852 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
853   VisitExpr(S);
854   ID.AddBoolean(S->isFileScope());
855 }
856 
857 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
858   VisitExpr(S);
859 }
860 
861 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
862   VisitCastExpr(S);
863   ID.AddInteger(S->getValueKind());
864 }
865 
866 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
867   VisitCastExpr(S);
868   VisitType(S->getTypeAsWritten());
869 }
870 
871 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
872   VisitExplicitCastExpr(S);
873 }
874 
875 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
876   VisitExpr(S);
877   ID.AddInteger(S->getOpcode());
878 }
879 
880 void
881 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
882   VisitBinaryOperator(S);
883 }
884 
885 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
886   VisitExpr(S);
887 }
888 
889 void StmtProfiler::VisitBinaryConditionalOperator(
890     const BinaryConditionalOperator *S) {
891   VisitExpr(S);
892 }
893 
894 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
895   VisitExpr(S);
896   VisitDecl(S->getLabel());
897 }
898 
899 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
900   VisitExpr(S);
901 }
902 
903 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
904   VisitExpr(S);
905 }
906 
907 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
908   VisitExpr(S);
909 }
910 
911 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
912   VisitExpr(S);
913 }
914 
915 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
916   VisitExpr(S);
917 }
918 
919 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
920   VisitExpr(S);
921 }
922 
923 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
924   if (S->getSyntacticForm()) {
925     VisitInitListExpr(S->getSyntacticForm());
926     return;
927   }
928 
929   VisitExpr(S);
930 }
931 
932 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
933   VisitExpr(S);
934   ID.AddBoolean(S->usesGNUSyntax());
935   for (const DesignatedInitExpr::Designator &D : S->designators()) {
936     if (D.isFieldDesignator()) {
937       ID.AddInteger(0);
938       VisitName(D.getFieldName());
939       continue;
940     }
941 
942     if (D.isArrayDesignator()) {
943       ID.AddInteger(1);
944     } else {
945       assert(D.isArrayRangeDesignator());
946       ID.AddInteger(2);
947     }
948     ID.AddInteger(D.getFirstExprIndex());
949   }
950 }
951 
952 // Seems that if VisitInitListExpr() only works on the syntactic form of an
953 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
954 void StmtProfiler::VisitDesignatedInitUpdateExpr(
955     const DesignatedInitUpdateExpr *S) {
956   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
957                    "initializer");
958 }
959 
960 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
961   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
962 }
963 
964 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
965   VisitExpr(S);
966 }
967 
968 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
969   VisitExpr(S);
970   VisitName(&S->getAccessor());
971 }
972 
973 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
974   VisitExpr(S);
975   VisitDecl(S->getBlockDecl());
976 }
977 
978 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
979   VisitExpr(S);
980   for (unsigned i = 0; i != S->getNumAssocs(); ++i) {
981     QualType T = S->getAssocType(i);
982     if (T.isNull())
983       ID.AddPointer(nullptr);
984     else
985       VisitType(T);
986     VisitExpr(S->getAssocExpr(i));
987   }
988 }
989 
990 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
991   VisitExpr(S);
992   for (PseudoObjectExpr::const_semantics_iterator
993          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
994     // Normally, we would not profile the source expressions of OVEs.
995     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
996       Visit(OVE->getSourceExpr());
997 }
998 
999 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
1000   VisitExpr(S);
1001   ID.AddInteger(S->getOp());
1002 }
1003 
1004 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
1005                                           UnaryOperatorKind &UnaryOp,
1006                                           BinaryOperatorKind &BinaryOp) {
1007   switch (S->getOperator()) {
1008   case OO_None:
1009   case OO_New:
1010   case OO_Delete:
1011   case OO_Array_New:
1012   case OO_Array_Delete:
1013   case OO_Arrow:
1014   case OO_Call:
1015   case OO_Conditional:
1016   case OO_Coawait:
1017   case NUM_OVERLOADED_OPERATORS:
1018     llvm_unreachable("Invalid operator call kind");
1019 
1020   case OO_Plus:
1021     if (S->getNumArgs() == 1) {
1022       UnaryOp = UO_Plus;
1023       return Stmt::UnaryOperatorClass;
1024     }
1025 
1026     BinaryOp = BO_Add;
1027     return Stmt::BinaryOperatorClass;
1028 
1029   case OO_Minus:
1030     if (S->getNumArgs() == 1) {
1031       UnaryOp = UO_Minus;
1032       return Stmt::UnaryOperatorClass;
1033     }
1034 
1035     BinaryOp = BO_Sub;
1036     return Stmt::BinaryOperatorClass;
1037 
1038   case OO_Star:
1039     if (S->getNumArgs() == 1) {
1040       UnaryOp = UO_Deref;
1041       return Stmt::UnaryOperatorClass;
1042     }
1043 
1044     BinaryOp = BO_Mul;
1045     return Stmt::BinaryOperatorClass;
1046 
1047   case OO_Slash:
1048     BinaryOp = BO_Div;
1049     return Stmt::BinaryOperatorClass;
1050 
1051   case OO_Percent:
1052     BinaryOp = BO_Rem;
1053     return Stmt::BinaryOperatorClass;
1054 
1055   case OO_Caret:
1056     BinaryOp = BO_Xor;
1057     return Stmt::BinaryOperatorClass;
1058 
1059   case OO_Amp:
1060     if (S->getNumArgs() == 1) {
1061       UnaryOp = UO_AddrOf;
1062       return Stmt::UnaryOperatorClass;
1063     }
1064 
1065     BinaryOp = BO_And;
1066     return Stmt::BinaryOperatorClass;
1067 
1068   case OO_Pipe:
1069     BinaryOp = BO_Or;
1070     return Stmt::BinaryOperatorClass;
1071 
1072   case OO_Tilde:
1073     UnaryOp = UO_Not;
1074     return Stmt::UnaryOperatorClass;
1075 
1076   case OO_Exclaim:
1077     UnaryOp = UO_LNot;
1078     return Stmt::UnaryOperatorClass;
1079 
1080   case OO_Equal:
1081     BinaryOp = BO_Assign;
1082     return Stmt::BinaryOperatorClass;
1083 
1084   case OO_Less:
1085     BinaryOp = BO_LT;
1086     return Stmt::BinaryOperatorClass;
1087 
1088   case OO_Greater:
1089     BinaryOp = BO_GT;
1090     return Stmt::BinaryOperatorClass;
1091 
1092   case OO_PlusEqual:
1093     BinaryOp = BO_AddAssign;
1094     return Stmt::CompoundAssignOperatorClass;
1095 
1096   case OO_MinusEqual:
1097     BinaryOp = BO_SubAssign;
1098     return Stmt::CompoundAssignOperatorClass;
1099 
1100   case OO_StarEqual:
1101     BinaryOp = BO_MulAssign;
1102     return Stmt::CompoundAssignOperatorClass;
1103 
1104   case OO_SlashEqual:
1105     BinaryOp = BO_DivAssign;
1106     return Stmt::CompoundAssignOperatorClass;
1107 
1108   case OO_PercentEqual:
1109     BinaryOp = BO_RemAssign;
1110     return Stmt::CompoundAssignOperatorClass;
1111 
1112   case OO_CaretEqual:
1113     BinaryOp = BO_XorAssign;
1114     return Stmt::CompoundAssignOperatorClass;
1115 
1116   case OO_AmpEqual:
1117     BinaryOp = BO_AndAssign;
1118     return Stmt::CompoundAssignOperatorClass;
1119 
1120   case OO_PipeEqual:
1121     BinaryOp = BO_OrAssign;
1122     return Stmt::CompoundAssignOperatorClass;
1123 
1124   case OO_LessLess:
1125     BinaryOp = BO_Shl;
1126     return Stmt::BinaryOperatorClass;
1127 
1128   case OO_GreaterGreater:
1129     BinaryOp = BO_Shr;
1130     return Stmt::BinaryOperatorClass;
1131 
1132   case OO_LessLessEqual:
1133     BinaryOp = BO_ShlAssign;
1134     return Stmt::CompoundAssignOperatorClass;
1135 
1136   case OO_GreaterGreaterEqual:
1137     BinaryOp = BO_ShrAssign;
1138     return Stmt::CompoundAssignOperatorClass;
1139 
1140   case OO_EqualEqual:
1141     BinaryOp = BO_EQ;
1142     return Stmt::BinaryOperatorClass;
1143 
1144   case OO_ExclaimEqual:
1145     BinaryOp = BO_NE;
1146     return Stmt::BinaryOperatorClass;
1147 
1148   case OO_LessEqual:
1149     BinaryOp = BO_LE;
1150     return Stmt::BinaryOperatorClass;
1151 
1152   case OO_GreaterEqual:
1153     BinaryOp = BO_GE;
1154     return Stmt::BinaryOperatorClass;
1155 
1156   case OO_AmpAmp:
1157     BinaryOp = BO_LAnd;
1158     return Stmt::BinaryOperatorClass;
1159 
1160   case OO_PipePipe:
1161     BinaryOp = BO_LOr;
1162     return Stmt::BinaryOperatorClass;
1163 
1164   case OO_PlusPlus:
1165     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1166                                   : UO_PostInc;
1167     return Stmt::UnaryOperatorClass;
1168 
1169   case OO_MinusMinus:
1170     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1171                                   : UO_PostDec;
1172     return Stmt::UnaryOperatorClass;
1173 
1174   case OO_Comma:
1175     BinaryOp = BO_Comma;
1176     return Stmt::BinaryOperatorClass;
1177 
1178   case OO_ArrowStar:
1179     BinaryOp = BO_PtrMemI;
1180     return Stmt::BinaryOperatorClass;
1181 
1182   case OO_Subscript:
1183     return Stmt::ArraySubscriptExprClass;
1184   }
1185 
1186   llvm_unreachable("Invalid overloaded operator expression");
1187 }
1188 
1189 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1190   if (S->isTypeDependent()) {
1191     // Type-dependent operator calls are profiled like their underlying
1192     // syntactic operator.
1193     UnaryOperatorKind UnaryOp = UO_Extension;
1194     BinaryOperatorKind BinaryOp = BO_Comma;
1195     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1196 
1197     ID.AddInteger(SC);
1198     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1199       Visit(S->getArg(I));
1200     if (SC == Stmt::UnaryOperatorClass)
1201       ID.AddInteger(UnaryOp);
1202     else if (SC == Stmt::BinaryOperatorClass ||
1203              SC == Stmt::CompoundAssignOperatorClass)
1204       ID.AddInteger(BinaryOp);
1205     else
1206       assert(SC == Stmt::ArraySubscriptExprClass);
1207 
1208     return;
1209   }
1210 
1211   VisitCallExpr(S);
1212   ID.AddInteger(S->getOperator());
1213 }
1214 
1215 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1216   VisitCallExpr(S);
1217 }
1218 
1219 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1220   VisitCallExpr(S);
1221 }
1222 
1223 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1224   VisitExpr(S);
1225 }
1226 
1227 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1228   VisitExplicitCastExpr(S);
1229 }
1230 
1231 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1232   VisitCXXNamedCastExpr(S);
1233 }
1234 
1235 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1236   VisitCXXNamedCastExpr(S);
1237 }
1238 
1239 void
1240 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1241   VisitCXXNamedCastExpr(S);
1242 }
1243 
1244 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1245   VisitCXXNamedCastExpr(S);
1246 }
1247 
1248 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1249   VisitCallExpr(S);
1250 }
1251 
1252 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1253   VisitExpr(S);
1254   ID.AddBoolean(S->getValue());
1255 }
1256 
1257 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1258   VisitExpr(S);
1259 }
1260 
1261 void StmtProfiler::VisitCXXStdInitializerListExpr(
1262     const CXXStdInitializerListExpr *S) {
1263   VisitExpr(S);
1264 }
1265 
1266 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1267   VisitExpr(S);
1268   if (S->isTypeOperand())
1269     VisitType(S->getTypeOperandSourceInfo()->getType());
1270 }
1271 
1272 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1273   VisitExpr(S);
1274   if (S->isTypeOperand())
1275     VisitType(S->getTypeOperandSourceInfo()->getType());
1276 }
1277 
1278 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1279   VisitExpr(S);
1280   VisitDecl(S->getPropertyDecl());
1281 }
1282 
1283 void StmtProfiler::VisitMSPropertySubscriptExpr(
1284     const MSPropertySubscriptExpr *S) {
1285   VisitExpr(S);
1286 }
1287 
1288 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1289   VisitExpr(S);
1290   ID.AddBoolean(S->isImplicit());
1291 }
1292 
1293 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1294   VisitExpr(S);
1295 }
1296 
1297 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1298   VisitExpr(S);
1299   VisitDecl(S->getParam());
1300 }
1301 
1302 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1303   VisitExpr(S);
1304   VisitDecl(S->getField());
1305 }
1306 
1307 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1308   VisitExpr(S);
1309   VisitDecl(
1310          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1311 }
1312 
1313 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1314   VisitExpr(S);
1315   VisitDecl(S->getConstructor());
1316   ID.AddBoolean(S->isElidable());
1317 }
1318 
1319 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
1320     const CXXInheritedCtorInitExpr *S) {
1321   VisitExpr(S);
1322   VisitDecl(S->getConstructor());
1323 }
1324 
1325 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1326   VisitExplicitCastExpr(S);
1327 }
1328 
1329 void
1330 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1331   VisitCXXConstructExpr(S);
1332 }
1333 
1334 void
1335 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1336   VisitExpr(S);
1337   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1338                                  CEnd = S->explicit_capture_end();
1339        C != CEnd; ++C) {
1340     ID.AddInteger(C->getCaptureKind());
1341     switch (C->getCaptureKind()) {
1342     case LCK_StarThis:
1343     case LCK_This:
1344       break;
1345     case LCK_ByRef:
1346     case LCK_ByCopy:
1347       VisitDecl(C->getCapturedVar());
1348       ID.AddBoolean(C->isPackExpansion());
1349       break;
1350     case LCK_VLAType:
1351       llvm_unreachable("VLA type in explicit captures.");
1352     }
1353   }
1354   // Note: If we actually needed to be able to match lambda
1355   // expressions, we would have to consider parameters and return type
1356   // here, among other things.
1357   VisitStmt(S->getBody());
1358 }
1359 
1360 void
1361 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1362   VisitExpr(S);
1363 }
1364 
1365 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1366   VisitExpr(S);
1367   ID.AddBoolean(S->isGlobalDelete());
1368   ID.AddBoolean(S->isArrayForm());
1369   VisitDecl(S->getOperatorDelete());
1370 }
1371 
1372 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1373   VisitExpr(S);
1374   VisitType(S->getAllocatedType());
1375   VisitDecl(S->getOperatorNew());
1376   VisitDecl(S->getOperatorDelete());
1377   ID.AddBoolean(S->isArray());
1378   ID.AddInteger(S->getNumPlacementArgs());
1379   ID.AddBoolean(S->isGlobalNew());
1380   ID.AddBoolean(S->isParenTypeId());
1381   ID.AddInteger(S->getInitializationStyle());
1382 }
1383 
1384 void
1385 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1386   VisitExpr(S);
1387   ID.AddBoolean(S->isArrow());
1388   VisitNestedNameSpecifier(S->getQualifier());
1389   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1390   if (S->getScopeTypeInfo())
1391     VisitType(S->getScopeTypeInfo()->getType());
1392   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1393   if (S->getDestroyedTypeInfo())
1394     VisitType(S->getDestroyedType());
1395   else
1396     ID.AddPointer(S->getDestroyedTypeIdentifier());
1397 }
1398 
1399 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1400   VisitExpr(S);
1401   VisitNestedNameSpecifier(S->getQualifier());
1402   VisitName(S->getName());
1403   ID.AddBoolean(S->hasExplicitTemplateArgs());
1404   if (S->hasExplicitTemplateArgs())
1405     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1406 }
1407 
1408 void
1409 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1410   VisitOverloadExpr(S);
1411 }
1412 
1413 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1414   VisitExpr(S);
1415   ID.AddInteger(S->getTrait());
1416   ID.AddInteger(S->getNumArgs());
1417   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1418     VisitType(S->getArg(I)->getType());
1419 }
1420 
1421 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1422   VisitExpr(S);
1423   ID.AddInteger(S->getTrait());
1424   VisitType(S->getQueriedType());
1425 }
1426 
1427 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1428   VisitExpr(S);
1429   ID.AddInteger(S->getTrait());
1430   VisitExpr(S->getQueriedExpression());
1431 }
1432 
1433 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1434     const DependentScopeDeclRefExpr *S) {
1435   VisitExpr(S);
1436   VisitName(S->getDeclName());
1437   VisitNestedNameSpecifier(S->getQualifier());
1438   ID.AddBoolean(S->hasExplicitTemplateArgs());
1439   if (S->hasExplicitTemplateArgs())
1440     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1441 }
1442 
1443 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1444   VisitExpr(S);
1445 }
1446 
1447 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1448     const CXXUnresolvedConstructExpr *S) {
1449   VisitExpr(S);
1450   VisitType(S->getTypeAsWritten());
1451 }
1452 
1453 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1454     const CXXDependentScopeMemberExpr *S) {
1455   ID.AddBoolean(S->isImplicitAccess());
1456   if (!S->isImplicitAccess()) {
1457     VisitExpr(S);
1458     ID.AddBoolean(S->isArrow());
1459   }
1460   VisitNestedNameSpecifier(S->getQualifier());
1461   VisitName(S->getMember());
1462   ID.AddBoolean(S->hasExplicitTemplateArgs());
1463   if (S->hasExplicitTemplateArgs())
1464     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1465 }
1466 
1467 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1468   ID.AddBoolean(S->isImplicitAccess());
1469   if (!S->isImplicitAccess()) {
1470     VisitExpr(S);
1471     ID.AddBoolean(S->isArrow());
1472   }
1473   VisitNestedNameSpecifier(S->getQualifier());
1474   VisitName(S->getMemberName());
1475   ID.AddBoolean(S->hasExplicitTemplateArgs());
1476   if (S->hasExplicitTemplateArgs())
1477     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1478 }
1479 
1480 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1481   VisitExpr(S);
1482 }
1483 
1484 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1485   VisitExpr(S);
1486 }
1487 
1488 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1489   VisitExpr(S);
1490   VisitDecl(S->getPack());
1491   if (S->isPartiallySubstituted()) {
1492     auto Args = S->getPartialArguments();
1493     ID.AddInteger(Args.size());
1494     for (const auto &TA : Args)
1495       VisitTemplateArgument(TA);
1496   } else {
1497     ID.AddInteger(0);
1498   }
1499 }
1500 
1501 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1502     const SubstNonTypeTemplateParmPackExpr *S) {
1503   VisitExpr(S);
1504   VisitDecl(S->getParameterPack());
1505   VisitTemplateArgument(S->getArgumentPack());
1506 }
1507 
1508 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
1509     const SubstNonTypeTemplateParmExpr *E) {
1510   // Profile exactly as the replacement expression.
1511   Visit(E->getReplacement());
1512 }
1513 
1514 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
1515   VisitExpr(S);
1516   VisitDecl(S->getParameterPack());
1517   ID.AddInteger(S->getNumExpansions());
1518   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
1519     VisitDecl(*I);
1520 }
1521 
1522 void StmtProfiler::VisitMaterializeTemporaryExpr(
1523                                            const MaterializeTemporaryExpr *S) {
1524   VisitExpr(S);
1525 }
1526 
1527 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
1528   VisitExpr(S);
1529   ID.AddInteger(S->getOperator());
1530 }
1531 
1532 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
1533   VisitStmt(S);
1534 }
1535 
1536 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
1537   VisitStmt(S);
1538 }
1539 
1540 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
1541   VisitExpr(S);
1542 }
1543 
1544 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
1545   VisitExpr(S);
1546 }
1547 
1548 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
1549   VisitExpr(E);
1550 }
1551 
1552 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
1553   VisitExpr(E);
1554 }
1555 
1556 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
1557   VisitExpr(S);
1558 }
1559 
1560 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
1561   VisitExpr(E);
1562 }
1563 
1564 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
1565   VisitExpr(E);
1566 }
1567 
1568 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
1569   VisitExpr(E);
1570 }
1571 
1572 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
1573   VisitExpr(S);
1574   VisitType(S->getEncodedType());
1575 }
1576 
1577 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
1578   VisitExpr(S);
1579   VisitName(S->getSelector());
1580 }
1581 
1582 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
1583   VisitExpr(S);
1584   VisitDecl(S->getProtocol());
1585 }
1586 
1587 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
1588   VisitExpr(S);
1589   VisitDecl(S->getDecl());
1590   ID.AddBoolean(S->isArrow());
1591   ID.AddBoolean(S->isFreeIvar());
1592 }
1593 
1594 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
1595   VisitExpr(S);
1596   if (S->isImplicitProperty()) {
1597     VisitDecl(S->getImplicitPropertyGetter());
1598     VisitDecl(S->getImplicitPropertySetter());
1599   } else {
1600     VisitDecl(S->getExplicitProperty());
1601   }
1602   if (S->isSuperReceiver()) {
1603     ID.AddBoolean(S->isSuperReceiver());
1604     VisitType(S->getSuperReceiverType());
1605   }
1606 }
1607 
1608 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
1609   VisitExpr(S);
1610   VisitDecl(S->getAtIndexMethodDecl());
1611   VisitDecl(S->setAtIndexMethodDecl());
1612 }
1613 
1614 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
1615   VisitExpr(S);
1616   VisitName(S->getSelector());
1617   VisitDecl(S->getMethodDecl());
1618 }
1619 
1620 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
1621   VisitExpr(S);
1622   ID.AddBoolean(S->isArrow());
1623 }
1624 
1625 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
1626   VisitExpr(S);
1627   ID.AddBoolean(S->getValue());
1628 }
1629 
1630 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
1631     const ObjCIndirectCopyRestoreExpr *S) {
1632   VisitExpr(S);
1633   ID.AddBoolean(S->shouldCopy());
1634 }
1635 
1636 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
1637   VisitExplicitCastExpr(S);
1638   ID.AddBoolean(S->getBridgeKind());
1639 }
1640 
1641 void StmtProfiler::VisitObjCAvailabilityCheckExpr(
1642     const ObjCAvailabilityCheckExpr *S) {
1643   VisitExpr(S);
1644 }
1645 
1646 void StmtProfiler::VisitDecl(const Decl *D) {
1647   ID.AddInteger(D? D->getKind() : 0);
1648 
1649   if (Canonical && D) {
1650     if (const NonTypeTemplateParmDecl *NTTP =
1651           dyn_cast<NonTypeTemplateParmDecl>(D)) {
1652       ID.AddInteger(NTTP->getDepth());
1653       ID.AddInteger(NTTP->getIndex());
1654       ID.AddBoolean(NTTP->isParameterPack());
1655       VisitType(NTTP->getType());
1656       return;
1657     }
1658 
1659     if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
1660       // The Itanium C++ ABI uses the type, scope depth, and scope
1661       // index of a parameter when mangling expressions that involve
1662       // function parameters, so we will use the parameter's type for
1663       // establishing function parameter identity. That way, our
1664       // definition of "equivalent" (per C++ [temp.over.link]) is at
1665       // least as strong as the definition of "equivalent" used for
1666       // name mangling.
1667       VisitType(Parm->getType());
1668       ID.AddInteger(Parm->getFunctionScopeDepth());
1669       ID.AddInteger(Parm->getFunctionScopeIndex());
1670       return;
1671     }
1672 
1673     if (const TemplateTypeParmDecl *TTP =
1674           dyn_cast<TemplateTypeParmDecl>(D)) {
1675       ID.AddInteger(TTP->getDepth());
1676       ID.AddInteger(TTP->getIndex());
1677       ID.AddBoolean(TTP->isParameterPack());
1678       return;
1679     }
1680 
1681     if (const TemplateTemplateParmDecl *TTP =
1682           dyn_cast<TemplateTemplateParmDecl>(D)) {
1683       ID.AddInteger(TTP->getDepth());
1684       ID.AddInteger(TTP->getIndex());
1685       ID.AddBoolean(TTP->isParameterPack());
1686       return;
1687     }
1688   }
1689 
1690   ID.AddPointer(D? D->getCanonicalDecl() : nullptr);
1691 }
1692 
1693 void StmtProfiler::VisitType(QualType T) {
1694   if (Canonical)
1695     T = Context.getCanonicalType(T);
1696 
1697   ID.AddPointer(T.getAsOpaquePtr());
1698 }
1699 
1700 void StmtProfiler::VisitName(DeclarationName Name) {
1701   ID.AddPointer(Name.getAsOpaquePtr());
1702 }
1703 
1704 void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
1705   if (Canonical)
1706     NNS = Context.getCanonicalNestedNameSpecifier(NNS);
1707   ID.AddPointer(NNS);
1708 }
1709 
1710 void StmtProfiler::VisitTemplateName(TemplateName Name) {
1711   if (Canonical)
1712     Name = Context.getCanonicalTemplateName(Name);
1713 
1714   Name.Profile(ID);
1715 }
1716 
1717 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
1718                                           unsigned NumArgs) {
1719   ID.AddInteger(NumArgs);
1720   for (unsigned I = 0; I != NumArgs; ++I)
1721     VisitTemplateArgument(Args[I].getArgument());
1722 }
1723 
1724 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
1725   // Mostly repetitive with TemplateArgument::Profile!
1726   ID.AddInteger(Arg.getKind());
1727   switch (Arg.getKind()) {
1728   case TemplateArgument::Null:
1729     break;
1730 
1731   case TemplateArgument::Type:
1732     VisitType(Arg.getAsType());
1733     break;
1734 
1735   case TemplateArgument::Template:
1736   case TemplateArgument::TemplateExpansion:
1737     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
1738     break;
1739 
1740   case TemplateArgument::Declaration:
1741     VisitDecl(Arg.getAsDecl());
1742     break;
1743 
1744   case TemplateArgument::NullPtr:
1745     VisitType(Arg.getNullPtrType());
1746     break;
1747 
1748   case TemplateArgument::Integral:
1749     Arg.getAsIntegral().Profile(ID);
1750     VisitType(Arg.getIntegralType());
1751     break;
1752 
1753   case TemplateArgument::Expression:
1754     Visit(Arg.getAsExpr());
1755     break;
1756 
1757   case TemplateArgument::Pack:
1758     for (const auto &P : Arg.pack_elements())
1759       VisitTemplateArgument(P);
1760     break;
1761   }
1762 }
1763 
1764 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
1765                    bool Canonical) const {
1766   StmtProfiler Profiler(ID, Context, Canonical);
1767   Profiler.Visit(this);
1768 }
1769