1 //===---- StmtProfile.cpp - Profile implementation for Stmt ASTs ----------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file implements the Stmt::Profile method, which builds a unique bit
11 // representation that identifies a statement/expression.
12 //
13 //===----------------------------------------------------------------------===//
14 #include "clang/AST/ASTContext.h"
15 #include "clang/AST/DeclCXX.h"
16 #include "clang/AST/DeclObjC.h"
17 #include "clang/AST/DeclTemplate.h"
18 #include "clang/AST/Expr.h"
19 #include "clang/AST/ExprCXX.h"
20 #include "clang/AST/ExprObjC.h"
21 #include "clang/AST/ExprOpenMP.h"
22 #include "clang/AST/StmtVisitor.h"
23 #include "llvm/ADT/FoldingSet.h"
24 using namespace clang;
25 
26 namespace {
27   class StmtProfiler : public ConstStmtVisitor<StmtProfiler> {
28     llvm::FoldingSetNodeID &ID;
29     const ASTContext &Context;
30     bool Canonical;
31 
32   public:
33     StmtProfiler(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
34                  bool Canonical)
35       : ID(ID), Context(Context), Canonical(Canonical) { }
36 
37     void VisitStmt(const Stmt *S);
38 
39 #define STMT(Node, Base) void Visit##Node(const Node *S);
40 #include "clang/AST/StmtNodes.inc"
41 
42     /// \brief Visit a declaration that is referenced within an expression
43     /// or statement.
44     void VisitDecl(const Decl *D);
45 
46     /// \brief Visit a type that is referenced within an expression or
47     /// statement.
48     void VisitType(QualType T);
49 
50     /// \brief Visit a name that occurs within an expression or statement.
51     void VisitName(DeclarationName Name);
52 
53     /// \brief Visit a nested-name-specifier that occurs within an expression
54     /// or statement.
55     void VisitNestedNameSpecifier(NestedNameSpecifier *NNS);
56 
57     /// \brief Visit a template name that occurs within an expression or
58     /// statement.
59     void VisitTemplateName(TemplateName Name);
60 
61     /// \brief Visit template arguments that occur within an expression or
62     /// statement.
63     void VisitTemplateArguments(const TemplateArgumentLoc *Args,
64                                 unsigned NumArgs);
65 
66     /// \brief Visit a single template argument.
67     void VisitTemplateArgument(const TemplateArgument &Arg);
68   };
69 }
70 
71 void StmtProfiler::VisitStmt(const Stmt *S) {
72   assert(S && "Requires non-null Stmt pointer");
73   ID.AddInteger(S->getStmtClass());
74   for (const Stmt *SubStmt : S->children()) {
75     if (SubStmt)
76       Visit(SubStmt);
77     else
78       ID.AddInteger(0);
79   }
80 }
81 
82 void StmtProfiler::VisitDeclStmt(const DeclStmt *S) {
83   VisitStmt(S);
84   for (const auto *D : S->decls())
85     VisitDecl(D);
86 }
87 
88 void StmtProfiler::VisitNullStmt(const NullStmt *S) {
89   VisitStmt(S);
90 }
91 
92 void StmtProfiler::VisitCompoundStmt(const CompoundStmt *S) {
93   VisitStmt(S);
94 }
95 
96 void StmtProfiler::VisitCaseStmt(const CaseStmt *S) {
97   VisitStmt(S);
98 }
99 
100 void StmtProfiler::VisitDefaultStmt(const DefaultStmt *S) {
101   VisitStmt(S);
102 }
103 
104 void StmtProfiler::VisitLabelStmt(const LabelStmt *S) {
105   VisitStmt(S);
106   VisitDecl(S->getDecl());
107 }
108 
109 void StmtProfiler::VisitAttributedStmt(const AttributedStmt *S) {
110   VisitStmt(S);
111   // TODO: maybe visit attributes?
112 }
113 
114 void StmtProfiler::VisitIfStmt(const IfStmt *S) {
115   VisitStmt(S);
116   VisitDecl(S->getConditionVariable());
117 }
118 
119 void StmtProfiler::VisitSwitchStmt(const SwitchStmt *S) {
120   VisitStmt(S);
121   VisitDecl(S->getConditionVariable());
122 }
123 
124 void StmtProfiler::VisitWhileStmt(const WhileStmt *S) {
125   VisitStmt(S);
126   VisitDecl(S->getConditionVariable());
127 }
128 
129 void StmtProfiler::VisitDoStmt(const DoStmt *S) {
130   VisitStmt(S);
131 }
132 
133 void StmtProfiler::VisitForStmt(const ForStmt *S) {
134   VisitStmt(S);
135 }
136 
137 void StmtProfiler::VisitGotoStmt(const GotoStmt *S) {
138   VisitStmt(S);
139   VisitDecl(S->getLabel());
140 }
141 
142 void StmtProfiler::VisitIndirectGotoStmt(const IndirectGotoStmt *S) {
143   VisitStmt(S);
144 }
145 
146 void StmtProfiler::VisitContinueStmt(const ContinueStmt *S) {
147   VisitStmt(S);
148 }
149 
150 void StmtProfiler::VisitBreakStmt(const BreakStmt *S) {
151   VisitStmt(S);
152 }
153 
154 void StmtProfiler::VisitReturnStmt(const ReturnStmt *S) {
155   VisitStmt(S);
156 }
157 
158 void StmtProfiler::VisitGCCAsmStmt(const GCCAsmStmt *S) {
159   VisitStmt(S);
160   ID.AddBoolean(S->isVolatile());
161   ID.AddBoolean(S->isSimple());
162   VisitStringLiteral(S->getAsmString());
163   ID.AddInteger(S->getNumOutputs());
164   for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
165     ID.AddString(S->getOutputName(I));
166     VisitStringLiteral(S->getOutputConstraintLiteral(I));
167   }
168   ID.AddInteger(S->getNumInputs());
169   for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
170     ID.AddString(S->getInputName(I));
171     VisitStringLiteral(S->getInputConstraintLiteral(I));
172   }
173   ID.AddInteger(S->getNumClobbers());
174   for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
175     VisitStringLiteral(S->getClobberStringLiteral(I));
176 }
177 
178 void StmtProfiler::VisitMSAsmStmt(const MSAsmStmt *S) {
179   // FIXME: Implement MS style inline asm statement profiler.
180   VisitStmt(S);
181 }
182 
183 void StmtProfiler::VisitCXXCatchStmt(const CXXCatchStmt *S) {
184   VisitStmt(S);
185   VisitType(S->getCaughtType());
186 }
187 
188 void StmtProfiler::VisitCXXTryStmt(const CXXTryStmt *S) {
189   VisitStmt(S);
190 }
191 
192 void StmtProfiler::VisitCXXForRangeStmt(const CXXForRangeStmt *S) {
193   VisitStmt(S);
194 }
195 
196 void StmtProfiler::VisitMSDependentExistsStmt(const MSDependentExistsStmt *S) {
197   VisitStmt(S);
198   ID.AddBoolean(S->isIfExists());
199   VisitNestedNameSpecifier(S->getQualifierLoc().getNestedNameSpecifier());
200   VisitName(S->getNameInfo().getName());
201 }
202 
203 void StmtProfiler::VisitSEHTryStmt(const SEHTryStmt *S) {
204   VisitStmt(S);
205 }
206 
207 void StmtProfiler::VisitSEHFinallyStmt(const SEHFinallyStmt *S) {
208   VisitStmt(S);
209 }
210 
211 void StmtProfiler::VisitSEHExceptStmt(const SEHExceptStmt *S) {
212   VisitStmt(S);
213 }
214 
215 void StmtProfiler::VisitSEHLeaveStmt(const SEHLeaveStmt *S) {
216   VisitStmt(S);
217 }
218 
219 void StmtProfiler::VisitCapturedStmt(const CapturedStmt *S) {
220   VisitStmt(S);
221 }
222 
223 void StmtProfiler::VisitObjCForCollectionStmt(const ObjCForCollectionStmt *S) {
224   VisitStmt(S);
225 }
226 
227 void StmtProfiler::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *S) {
228   VisitStmt(S);
229   ID.AddBoolean(S->hasEllipsis());
230   if (S->getCatchParamDecl())
231     VisitType(S->getCatchParamDecl()->getType());
232 }
233 
234 void StmtProfiler::VisitObjCAtFinallyStmt(const ObjCAtFinallyStmt *S) {
235   VisitStmt(S);
236 }
237 
238 void StmtProfiler::VisitObjCAtTryStmt(const ObjCAtTryStmt *S) {
239   VisitStmt(S);
240 }
241 
242 void
243 StmtProfiler::VisitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt *S) {
244   VisitStmt(S);
245 }
246 
247 void StmtProfiler::VisitObjCAtThrowStmt(const ObjCAtThrowStmt *S) {
248   VisitStmt(S);
249 }
250 
251 void
252 StmtProfiler::VisitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt *S) {
253   VisitStmt(S);
254 }
255 
256 namespace {
257 class OMPClauseProfiler : public ConstOMPClauseVisitor<OMPClauseProfiler> {
258   StmtProfiler *Profiler;
259   /// \brief Process clauses with list of variables.
260   template <typename T>
261   void VisitOMPClauseList(T *Node);
262 
263 public:
264   OMPClauseProfiler(StmtProfiler *P) : Profiler(P) { }
265 #define OPENMP_CLAUSE(Name, Class)                                             \
266   void Visit##Class(const Class *C);
267 #include "clang/Basic/OpenMPKinds.def"
268   void VistOMPClauseWithPreInit(const OMPClauseWithPreInit *C);
269   void VistOMPClauseWithPostUpdate(const OMPClauseWithPostUpdate *C);
270 };
271 
272 void OMPClauseProfiler::VistOMPClauseWithPreInit(
273     const OMPClauseWithPreInit *C) {
274   if (auto *S = C->getPreInitStmt())
275     Profiler->VisitStmt(S);
276 }
277 
278 void OMPClauseProfiler::VistOMPClauseWithPostUpdate(
279     const OMPClauseWithPostUpdate *C) {
280   VistOMPClauseWithPreInit(C);
281   if (auto *E = C->getPostUpdateExpr())
282     Profiler->VisitStmt(E);
283 }
284 
285 void OMPClauseProfiler::VisitOMPIfClause(const OMPIfClause *C) {
286   if (C->getCondition())
287     Profiler->VisitStmt(C->getCondition());
288 }
289 
290 void OMPClauseProfiler::VisitOMPFinalClause(const OMPFinalClause *C) {
291   if (C->getCondition())
292     Profiler->VisitStmt(C->getCondition());
293 }
294 
295 void OMPClauseProfiler::VisitOMPNumThreadsClause(const OMPNumThreadsClause *C) {
296   if (C->getNumThreads())
297     Profiler->VisitStmt(C->getNumThreads());
298 }
299 
300 void OMPClauseProfiler::VisitOMPSafelenClause(const OMPSafelenClause *C) {
301   if (C->getSafelen())
302     Profiler->VisitStmt(C->getSafelen());
303 }
304 
305 void OMPClauseProfiler::VisitOMPSimdlenClause(const OMPSimdlenClause *C) {
306   if (C->getSimdlen())
307     Profiler->VisitStmt(C->getSimdlen());
308 }
309 
310 void OMPClauseProfiler::VisitOMPCollapseClause(const OMPCollapseClause *C) {
311   if (C->getNumForLoops())
312     Profiler->VisitStmt(C->getNumForLoops());
313 }
314 
315 void OMPClauseProfiler::VisitOMPDefaultClause(const OMPDefaultClause *C) { }
316 
317 void OMPClauseProfiler::VisitOMPProcBindClause(const OMPProcBindClause *C) { }
318 
319 void OMPClauseProfiler::VisitOMPScheduleClause(const OMPScheduleClause *C) {
320   VistOMPClauseWithPreInit(C);
321   if (auto *S = C->getChunkSize())
322     Profiler->VisitStmt(S);
323 }
324 
325 void OMPClauseProfiler::VisitOMPOrderedClause(const OMPOrderedClause *C) {
326   if (auto *Num = C->getNumForLoops())
327     Profiler->VisitStmt(Num);
328 }
329 
330 void OMPClauseProfiler::VisitOMPNowaitClause(const OMPNowaitClause *) {}
331 
332 void OMPClauseProfiler::VisitOMPUntiedClause(const OMPUntiedClause *) {}
333 
334 void OMPClauseProfiler::VisitOMPMergeableClause(const OMPMergeableClause *) {}
335 
336 void OMPClauseProfiler::VisitOMPReadClause(const OMPReadClause *) {}
337 
338 void OMPClauseProfiler::VisitOMPWriteClause(const OMPWriteClause *) {}
339 
340 void OMPClauseProfiler::VisitOMPUpdateClause(const OMPUpdateClause *) {}
341 
342 void OMPClauseProfiler::VisitOMPCaptureClause(const OMPCaptureClause *) {}
343 
344 void OMPClauseProfiler::VisitOMPSeqCstClause(const OMPSeqCstClause *) {}
345 
346 void OMPClauseProfiler::VisitOMPThreadsClause(const OMPThreadsClause *) {}
347 
348 void OMPClauseProfiler::VisitOMPSIMDClause(const OMPSIMDClause *) {}
349 
350 void OMPClauseProfiler::VisitOMPNogroupClause(const OMPNogroupClause *) {}
351 
352 template<typename T>
353 void OMPClauseProfiler::VisitOMPClauseList(T *Node) {
354   for (auto *E : Node->varlists()) {
355     if (E)
356       Profiler->VisitStmt(E);
357   }
358 }
359 
360 void OMPClauseProfiler::VisitOMPPrivateClause(const OMPPrivateClause *C) {
361   VisitOMPClauseList(C);
362   for (auto *E : C->private_copies()) {
363     if (E)
364       Profiler->VisitStmt(E);
365   }
366 }
367 void
368 OMPClauseProfiler::VisitOMPFirstprivateClause(const OMPFirstprivateClause *C) {
369   VisitOMPClauseList(C);
370   VistOMPClauseWithPreInit(C);
371   for (auto *E : C->private_copies()) {
372     if (E)
373       Profiler->VisitStmt(E);
374   }
375   for (auto *E : C->inits()) {
376     if (E)
377       Profiler->VisitStmt(E);
378   }
379 }
380 void
381 OMPClauseProfiler::VisitOMPLastprivateClause(const OMPLastprivateClause *C) {
382   VisitOMPClauseList(C);
383   VistOMPClauseWithPostUpdate(C);
384   for (auto *E : C->source_exprs()) {
385     if (E)
386       Profiler->VisitStmt(E);
387   }
388   for (auto *E : C->destination_exprs()) {
389     if (E)
390       Profiler->VisitStmt(E);
391   }
392   for (auto *E : C->assignment_ops()) {
393     if (E)
394       Profiler->VisitStmt(E);
395   }
396 }
397 void OMPClauseProfiler::VisitOMPSharedClause(const OMPSharedClause *C) {
398   VisitOMPClauseList(C);
399 }
400 void OMPClauseProfiler::VisitOMPReductionClause(
401                                          const OMPReductionClause *C) {
402   Profiler->VisitNestedNameSpecifier(
403       C->getQualifierLoc().getNestedNameSpecifier());
404   Profiler->VisitName(C->getNameInfo().getName());
405   VisitOMPClauseList(C);
406   VistOMPClauseWithPostUpdate(C);
407   for (auto *E : C->privates()) {
408     if (E)
409       Profiler->VisitStmt(E);
410   }
411   for (auto *E : C->lhs_exprs()) {
412     if (E)
413       Profiler->VisitStmt(E);
414   }
415   for (auto *E : C->rhs_exprs()) {
416     if (E)
417       Profiler->VisitStmt(E);
418   }
419   for (auto *E : C->reduction_ops()) {
420     if (E)
421       Profiler->VisitStmt(E);
422   }
423 }
424 void OMPClauseProfiler::VisitOMPLinearClause(const OMPLinearClause *C) {
425   VisitOMPClauseList(C);
426   VistOMPClauseWithPostUpdate(C);
427   for (auto *E : C->privates()) {
428     if (E)
429       Profiler->VisitStmt(E);
430   }
431   for (auto *E : C->inits()) {
432     if (E)
433       Profiler->VisitStmt(E);
434   }
435   for (auto *E : C->updates()) {
436     if (E)
437       Profiler->VisitStmt(E);
438   }
439   for (auto *E : C->finals()) {
440     if (E)
441       Profiler->VisitStmt(E);
442   }
443   if (C->getStep())
444     Profiler->VisitStmt(C->getStep());
445   if (C->getCalcStep())
446     Profiler->VisitStmt(C->getCalcStep());
447 }
448 void OMPClauseProfiler::VisitOMPAlignedClause(const OMPAlignedClause *C) {
449   VisitOMPClauseList(C);
450   if (C->getAlignment())
451     Profiler->VisitStmt(C->getAlignment());
452 }
453 void OMPClauseProfiler::VisitOMPCopyinClause(const OMPCopyinClause *C) {
454   VisitOMPClauseList(C);
455   for (auto *E : C->source_exprs()) {
456     if (E)
457       Profiler->VisitStmt(E);
458   }
459   for (auto *E : C->destination_exprs()) {
460     if (E)
461       Profiler->VisitStmt(E);
462   }
463   for (auto *E : C->assignment_ops()) {
464     if (E)
465       Profiler->VisitStmt(E);
466   }
467 }
468 void
469 OMPClauseProfiler::VisitOMPCopyprivateClause(const OMPCopyprivateClause *C) {
470   VisitOMPClauseList(C);
471   for (auto *E : C->source_exprs()) {
472     if (E)
473       Profiler->VisitStmt(E);
474   }
475   for (auto *E : C->destination_exprs()) {
476     if (E)
477       Profiler->VisitStmt(E);
478   }
479   for (auto *E : C->assignment_ops()) {
480     if (E)
481       Profiler->VisitStmt(E);
482   }
483 }
484 void OMPClauseProfiler::VisitOMPFlushClause(const OMPFlushClause *C) {
485   VisitOMPClauseList(C);
486 }
487 void OMPClauseProfiler::VisitOMPDependClause(const OMPDependClause *C) {
488   VisitOMPClauseList(C);
489 }
490 void OMPClauseProfiler::VisitOMPDeviceClause(const OMPDeviceClause *C) {
491   if (C->getDevice())
492     Profiler->VisitStmt(C->getDevice());
493 }
494 void OMPClauseProfiler::VisitOMPMapClause(const OMPMapClause *C) {
495   VisitOMPClauseList(C);
496 }
497 void OMPClauseProfiler::VisitOMPNumTeamsClause(const OMPNumTeamsClause *C) {
498   if (C->getNumTeams())
499     Profiler->VisitStmt(C->getNumTeams());
500 }
501 void OMPClauseProfiler::VisitOMPThreadLimitClause(
502     const OMPThreadLimitClause *C) {
503   if (C->getThreadLimit())
504     Profiler->VisitStmt(C->getThreadLimit());
505 }
506 void OMPClauseProfiler::VisitOMPPriorityClause(const OMPPriorityClause *C) {
507   if (C->getPriority())
508     Profiler->VisitStmt(C->getPriority());
509 }
510 void OMPClauseProfiler::VisitOMPGrainsizeClause(const OMPGrainsizeClause *C) {
511   if (C->getGrainsize())
512     Profiler->VisitStmt(C->getGrainsize());
513 }
514 void OMPClauseProfiler::VisitOMPNumTasksClause(const OMPNumTasksClause *C) {
515   if (C->getNumTasks())
516     Profiler->VisitStmt(C->getNumTasks());
517 }
518 void OMPClauseProfiler::VisitOMPHintClause(const OMPHintClause *C) {
519   if (C->getHint())
520     Profiler->VisitStmt(C->getHint());
521 }
522 void OMPClauseProfiler::VisitOMPToClause(const OMPToClause *C) {
523   VisitOMPClauseList(C);
524 }
525 void OMPClauseProfiler::VisitOMPFromClause(const OMPFromClause *C) {
526   VisitOMPClauseList(C);
527 }
528 void OMPClauseProfiler::VisitOMPUseDevicePtrClause(
529     const OMPUseDevicePtrClause *C) {
530   VisitOMPClauseList(C);
531 }
532 void OMPClauseProfiler::VisitOMPIsDevicePtrClause(
533     const OMPIsDevicePtrClause *C) {
534   VisitOMPClauseList(C);
535 }
536 }
537 
538 void
539 StmtProfiler::VisitOMPExecutableDirective(const OMPExecutableDirective *S) {
540   VisitStmt(S);
541   OMPClauseProfiler P(this);
542   ArrayRef<OMPClause *> Clauses = S->clauses();
543   for (ArrayRef<OMPClause *>::iterator I = Clauses.begin(), E = Clauses.end();
544        I != E; ++I)
545     if (*I)
546       P.Visit(*I);
547 }
548 
549 void StmtProfiler::VisitOMPLoopDirective(const OMPLoopDirective *S) {
550   VisitOMPExecutableDirective(S);
551 }
552 
553 void StmtProfiler::VisitOMPParallelDirective(const OMPParallelDirective *S) {
554   VisitOMPExecutableDirective(S);
555 }
556 
557 void StmtProfiler::VisitOMPSimdDirective(const OMPSimdDirective *S) {
558   VisitOMPLoopDirective(S);
559 }
560 
561 void StmtProfiler::VisitOMPForDirective(const OMPForDirective *S) {
562   VisitOMPLoopDirective(S);
563 }
564 
565 void StmtProfiler::VisitOMPForSimdDirective(const OMPForSimdDirective *S) {
566   VisitOMPLoopDirective(S);
567 }
568 
569 void StmtProfiler::VisitOMPSectionsDirective(const OMPSectionsDirective *S) {
570   VisitOMPExecutableDirective(S);
571 }
572 
573 void StmtProfiler::VisitOMPSectionDirective(const OMPSectionDirective *S) {
574   VisitOMPExecutableDirective(S);
575 }
576 
577 void StmtProfiler::VisitOMPSingleDirective(const OMPSingleDirective *S) {
578   VisitOMPExecutableDirective(S);
579 }
580 
581 void StmtProfiler::VisitOMPMasterDirective(const OMPMasterDirective *S) {
582   VisitOMPExecutableDirective(S);
583 }
584 
585 void StmtProfiler::VisitOMPCriticalDirective(const OMPCriticalDirective *S) {
586   VisitOMPExecutableDirective(S);
587   VisitName(S->getDirectiveName().getName());
588 }
589 
590 void
591 StmtProfiler::VisitOMPParallelForDirective(const OMPParallelForDirective *S) {
592   VisitOMPLoopDirective(S);
593 }
594 
595 void StmtProfiler::VisitOMPParallelForSimdDirective(
596     const OMPParallelForSimdDirective *S) {
597   VisitOMPLoopDirective(S);
598 }
599 
600 void StmtProfiler::VisitOMPParallelSectionsDirective(
601     const OMPParallelSectionsDirective *S) {
602   VisitOMPExecutableDirective(S);
603 }
604 
605 void StmtProfiler::VisitOMPTaskDirective(const OMPTaskDirective *S) {
606   VisitOMPExecutableDirective(S);
607 }
608 
609 void StmtProfiler::VisitOMPTaskyieldDirective(const OMPTaskyieldDirective *S) {
610   VisitOMPExecutableDirective(S);
611 }
612 
613 void StmtProfiler::VisitOMPBarrierDirective(const OMPBarrierDirective *S) {
614   VisitOMPExecutableDirective(S);
615 }
616 
617 void StmtProfiler::VisitOMPTaskwaitDirective(const OMPTaskwaitDirective *S) {
618   VisitOMPExecutableDirective(S);
619 }
620 
621 void StmtProfiler::VisitOMPTaskgroupDirective(const OMPTaskgroupDirective *S) {
622   VisitOMPExecutableDirective(S);
623 }
624 
625 void StmtProfiler::VisitOMPFlushDirective(const OMPFlushDirective *S) {
626   VisitOMPExecutableDirective(S);
627 }
628 
629 void StmtProfiler::VisitOMPOrderedDirective(const OMPOrderedDirective *S) {
630   VisitOMPExecutableDirective(S);
631 }
632 
633 void StmtProfiler::VisitOMPAtomicDirective(const OMPAtomicDirective *S) {
634   VisitOMPExecutableDirective(S);
635 }
636 
637 void StmtProfiler::VisitOMPTargetDirective(const OMPTargetDirective *S) {
638   VisitOMPExecutableDirective(S);
639 }
640 
641 void StmtProfiler::VisitOMPTargetDataDirective(const OMPTargetDataDirective *S) {
642   VisitOMPExecutableDirective(S);
643 }
644 
645 void StmtProfiler::VisitOMPTargetEnterDataDirective(
646     const OMPTargetEnterDataDirective *S) {
647   VisitOMPExecutableDirective(S);
648 }
649 
650 void StmtProfiler::VisitOMPTargetExitDataDirective(
651     const OMPTargetExitDataDirective *S) {
652   VisitOMPExecutableDirective(S);
653 }
654 
655 void StmtProfiler::VisitOMPTargetParallelDirective(
656     const OMPTargetParallelDirective *S) {
657   VisitOMPExecutableDirective(S);
658 }
659 
660 void StmtProfiler::VisitOMPTargetParallelForDirective(
661     const OMPTargetParallelForDirective *S) {
662   VisitOMPExecutableDirective(S);
663 }
664 
665 void StmtProfiler::VisitOMPTeamsDirective(const OMPTeamsDirective *S) {
666   VisitOMPExecutableDirective(S);
667 }
668 
669 void StmtProfiler::VisitOMPCancellationPointDirective(
670     const OMPCancellationPointDirective *S) {
671   VisitOMPExecutableDirective(S);
672 }
673 
674 void StmtProfiler::VisitOMPCancelDirective(const OMPCancelDirective *S) {
675   VisitOMPExecutableDirective(S);
676 }
677 
678 void StmtProfiler::VisitOMPTaskLoopDirective(const OMPTaskLoopDirective *S) {
679   VisitOMPLoopDirective(S);
680 }
681 
682 void StmtProfiler::VisitOMPTaskLoopSimdDirective(
683     const OMPTaskLoopSimdDirective *S) {
684   VisitOMPLoopDirective(S);
685 }
686 
687 void StmtProfiler::VisitOMPDistributeDirective(
688     const OMPDistributeDirective *S) {
689   VisitOMPLoopDirective(S);
690 }
691 
692 void OMPClauseProfiler::VisitOMPDistScheduleClause(
693     const OMPDistScheduleClause *C) {
694   VistOMPClauseWithPreInit(C);
695   if (auto *S = C->getChunkSize())
696     Profiler->VisitStmt(S);
697 }
698 
699 void OMPClauseProfiler::VisitOMPDefaultmapClause(const OMPDefaultmapClause *) {}
700 
701 void StmtProfiler::VisitOMPTargetUpdateDirective(
702     const OMPTargetUpdateDirective *S) {
703   VisitOMPExecutableDirective(S);
704 }
705 
706 void StmtProfiler::VisitOMPDistributeParallelForDirective(
707     const OMPDistributeParallelForDirective *S) {
708   VisitOMPLoopDirective(S);
709 }
710 
711 void StmtProfiler::VisitOMPDistributeParallelForSimdDirective(
712     const OMPDistributeParallelForSimdDirective *S) {
713   VisitOMPLoopDirective(S);
714 }
715 
716 void StmtProfiler::VisitOMPDistributeSimdDirective(
717     const OMPDistributeSimdDirective *S) {
718   VisitOMPLoopDirective(S);
719 }
720 
721 void StmtProfiler::VisitOMPTargetParallelForSimdDirective(
722     const OMPTargetParallelForSimdDirective *S) {
723   VisitOMPLoopDirective(S);
724 }
725 
726 void StmtProfiler::VisitOMPTargetSimdDirective(
727     const OMPTargetSimdDirective *S) {
728   VisitOMPLoopDirective(S);
729 }
730 
731 void StmtProfiler::VisitOMPTeamsDistributeDirective(
732     const OMPTeamsDistributeDirective *S) {
733   VisitOMPLoopDirective(S);
734 }
735 
736 void StmtProfiler::VisitOMPTeamsDistributeSimdDirective(
737     const OMPTeamsDistributeSimdDirective *S) {
738   VisitOMPLoopDirective(S);
739 }
740 
741 void StmtProfiler::VisitOMPTeamsDistributeParallelForSimdDirective(
742     const OMPTeamsDistributeParallelForSimdDirective *S) {
743   VisitOMPLoopDirective(S);
744 }
745 
746 void StmtProfiler::VisitOMPTeamsDistributeParallelForDirective(
747     const OMPTeamsDistributeParallelForDirective *S) {
748   VisitOMPLoopDirective(S);
749 }
750 
751 void StmtProfiler::VisitOMPTargetTeamsDirective(
752     const OMPTargetTeamsDirective *S) {
753   VisitOMPExecutableDirective(S);
754 }
755 
756 void StmtProfiler::VisitOMPTargetTeamsDistributeDirective(
757     const OMPTargetTeamsDistributeDirective *S) {
758   VisitOMPLoopDirective(S);
759 }
760 
761 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForDirective(
762     const OMPTargetTeamsDistributeParallelForDirective *S) {
763   VisitOMPLoopDirective(S);
764 }
765 
766 void StmtProfiler::VisitOMPTargetTeamsDistributeParallelForSimdDirective(
767     const OMPTargetTeamsDistributeParallelForSimdDirective *S) {
768   VisitOMPLoopDirective(S);
769 }
770 
771 void StmtProfiler::VisitOMPTargetTeamsDistributeSimdDirective(
772     const OMPTargetTeamsDistributeSimdDirective *S) {
773   VisitOMPLoopDirective(S);
774 }
775 
776 void StmtProfiler::VisitExpr(const Expr *S) {
777   VisitStmt(S);
778 }
779 
780 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
781   VisitExpr(S);
782   if (!Canonical)
783     VisitNestedNameSpecifier(S->getQualifier());
784   VisitDecl(S->getDecl());
785   if (!Canonical)
786     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
787 }
788 
789 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
790   VisitExpr(S);
791   ID.AddInteger(S->getIdentType());
792 }
793 
794 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
795   VisitExpr(S);
796   S->getValue().Profile(ID);
797   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
798 }
799 
800 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
801   VisitExpr(S);
802   ID.AddInteger(S->getKind());
803   ID.AddInteger(S->getValue());
804 }
805 
806 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
807   VisitExpr(S);
808   S->getValue().Profile(ID);
809   ID.AddBoolean(S->isExact());
810   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
811 }
812 
813 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
814   VisitExpr(S);
815 }
816 
817 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
818   VisitExpr(S);
819   ID.AddString(S->getBytes());
820   ID.AddInteger(S->getKind());
821 }
822 
823 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
824   VisitExpr(S);
825 }
826 
827 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
828   VisitExpr(S);
829 }
830 
831 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
832   VisitExpr(S);
833   ID.AddInteger(S->getOpcode());
834 }
835 
836 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
837   VisitType(S->getTypeSourceInfo()->getType());
838   unsigned n = S->getNumComponents();
839   for (unsigned i = 0; i < n; ++i) {
840     const OffsetOfNode &ON = S->getComponent(i);
841     ID.AddInteger(ON.getKind());
842     switch (ON.getKind()) {
843     case OffsetOfNode::Array:
844       // Expressions handled below.
845       break;
846 
847     case OffsetOfNode::Field:
848       VisitDecl(ON.getField());
849       break;
850 
851     case OffsetOfNode::Identifier:
852       ID.AddPointer(ON.getFieldName());
853       break;
854 
855     case OffsetOfNode::Base:
856       // These nodes are implicit, and therefore don't need profiling.
857       break;
858     }
859   }
860 
861   VisitExpr(S);
862 }
863 
864 void
865 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
866   VisitExpr(S);
867   ID.AddInteger(S->getKind());
868   if (S->isArgumentType())
869     VisitType(S->getArgumentType());
870 }
871 
872 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
873   VisitExpr(S);
874 }
875 
876 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
877   VisitExpr(S);
878 }
879 
880 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
881   VisitExpr(S);
882 }
883 
884 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
885   VisitExpr(S);
886   VisitDecl(S->getMemberDecl());
887   if (!Canonical)
888     VisitNestedNameSpecifier(S->getQualifier());
889   ID.AddBoolean(S->isArrow());
890 }
891 
892 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
893   VisitExpr(S);
894   ID.AddBoolean(S->isFileScope());
895 }
896 
897 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
898   VisitExpr(S);
899 }
900 
901 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
902   VisitCastExpr(S);
903   ID.AddInteger(S->getValueKind());
904 }
905 
906 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
907   VisitCastExpr(S);
908   VisitType(S->getTypeAsWritten());
909 }
910 
911 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
912   VisitExplicitCastExpr(S);
913 }
914 
915 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
916   VisitExpr(S);
917   ID.AddInteger(S->getOpcode());
918 }
919 
920 void
921 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
922   VisitBinaryOperator(S);
923 }
924 
925 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
926   VisitExpr(S);
927 }
928 
929 void StmtProfiler::VisitBinaryConditionalOperator(
930     const BinaryConditionalOperator *S) {
931   VisitExpr(S);
932 }
933 
934 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
935   VisitExpr(S);
936   VisitDecl(S->getLabel());
937 }
938 
939 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
940   VisitExpr(S);
941 }
942 
943 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
944   VisitExpr(S);
945 }
946 
947 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
948   VisitExpr(S);
949 }
950 
951 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
952   VisitExpr(S);
953 }
954 
955 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
956   VisitExpr(S);
957 }
958 
959 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
960   VisitExpr(S);
961 }
962 
963 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
964   if (S->getSyntacticForm()) {
965     VisitInitListExpr(S->getSyntacticForm());
966     return;
967   }
968 
969   VisitExpr(S);
970 }
971 
972 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
973   VisitExpr(S);
974   ID.AddBoolean(S->usesGNUSyntax());
975   for (const DesignatedInitExpr::Designator &D : S->designators()) {
976     if (D.isFieldDesignator()) {
977       ID.AddInteger(0);
978       VisitName(D.getFieldName());
979       continue;
980     }
981 
982     if (D.isArrayDesignator()) {
983       ID.AddInteger(1);
984     } else {
985       assert(D.isArrayRangeDesignator());
986       ID.AddInteger(2);
987     }
988     ID.AddInteger(D.getFirstExprIndex());
989   }
990 }
991 
992 // Seems that if VisitInitListExpr() only works on the syntactic form of an
993 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
994 void StmtProfiler::VisitDesignatedInitUpdateExpr(
995     const DesignatedInitUpdateExpr *S) {
996   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
997                    "initializer");
998 }
999 
1000 void StmtProfiler::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *S) {
1001   VisitExpr(S);
1002 }
1003 
1004 void StmtProfiler::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *S) {
1005   VisitExpr(S);
1006 }
1007 
1008 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
1009   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
1010 }
1011 
1012 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
1013   VisitExpr(S);
1014 }
1015 
1016 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
1017   VisitExpr(S);
1018   VisitName(&S->getAccessor());
1019 }
1020 
1021 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
1022   VisitExpr(S);
1023   VisitDecl(S->getBlockDecl());
1024 }
1025 
1026 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
1027   VisitExpr(S);
1028   for (unsigned i = 0; i != S->getNumAssocs(); ++i) {
1029     QualType T = S->getAssocType(i);
1030     if (T.isNull())
1031       ID.AddPointer(nullptr);
1032     else
1033       VisitType(T);
1034     VisitExpr(S->getAssocExpr(i));
1035   }
1036 }
1037 
1038 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
1039   VisitExpr(S);
1040   for (PseudoObjectExpr::const_semantics_iterator
1041          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
1042     // Normally, we would not profile the source expressions of OVEs.
1043     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
1044       Visit(OVE->getSourceExpr());
1045 }
1046 
1047 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
1048   VisitExpr(S);
1049   ID.AddInteger(S->getOp());
1050 }
1051 
1052 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
1053                                           UnaryOperatorKind &UnaryOp,
1054                                           BinaryOperatorKind &BinaryOp) {
1055   switch (S->getOperator()) {
1056   case OO_None:
1057   case OO_New:
1058   case OO_Delete:
1059   case OO_Array_New:
1060   case OO_Array_Delete:
1061   case OO_Arrow:
1062   case OO_Call:
1063   case OO_Conditional:
1064   case OO_Coawait:
1065   case NUM_OVERLOADED_OPERATORS:
1066     llvm_unreachable("Invalid operator call kind");
1067 
1068   case OO_Plus:
1069     if (S->getNumArgs() == 1) {
1070       UnaryOp = UO_Plus;
1071       return Stmt::UnaryOperatorClass;
1072     }
1073 
1074     BinaryOp = BO_Add;
1075     return Stmt::BinaryOperatorClass;
1076 
1077   case OO_Minus:
1078     if (S->getNumArgs() == 1) {
1079       UnaryOp = UO_Minus;
1080       return Stmt::UnaryOperatorClass;
1081     }
1082 
1083     BinaryOp = BO_Sub;
1084     return Stmt::BinaryOperatorClass;
1085 
1086   case OO_Star:
1087     if (S->getNumArgs() == 1) {
1088       UnaryOp = UO_Deref;
1089       return Stmt::UnaryOperatorClass;
1090     }
1091 
1092     BinaryOp = BO_Mul;
1093     return Stmt::BinaryOperatorClass;
1094 
1095   case OO_Slash:
1096     BinaryOp = BO_Div;
1097     return Stmt::BinaryOperatorClass;
1098 
1099   case OO_Percent:
1100     BinaryOp = BO_Rem;
1101     return Stmt::BinaryOperatorClass;
1102 
1103   case OO_Caret:
1104     BinaryOp = BO_Xor;
1105     return Stmt::BinaryOperatorClass;
1106 
1107   case OO_Amp:
1108     if (S->getNumArgs() == 1) {
1109       UnaryOp = UO_AddrOf;
1110       return Stmt::UnaryOperatorClass;
1111     }
1112 
1113     BinaryOp = BO_And;
1114     return Stmt::BinaryOperatorClass;
1115 
1116   case OO_Pipe:
1117     BinaryOp = BO_Or;
1118     return Stmt::BinaryOperatorClass;
1119 
1120   case OO_Tilde:
1121     UnaryOp = UO_Not;
1122     return Stmt::UnaryOperatorClass;
1123 
1124   case OO_Exclaim:
1125     UnaryOp = UO_LNot;
1126     return Stmt::UnaryOperatorClass;
1127 
1128   case OO_Equal:
1129     BinaryOp = BO_Assign;
1130     return Stmt::BinaryOperatorClass;
1131 
1132   case OO_Less:
1133     BinaryOp = BO_LT;
1134     return Stmt::BinaryOperatorClass;
1135 
1136   case OO_Greater:
1137     BinaryOp = BO_GT;
1138     return Stmt::BinaryOperatorClass;
1139 
1140   case OO_PlusEqual:
1141     BinaryOp = BO_AddAssign;
1142     return Stmt::CompoundAssignOperatorClass;
1143 
1144   case OO_MinusEqual:
1145     BinaryOp = BO_SubAssign;
1146     return Stmt::CompoundAssignOperatorClass;
1147 
1148   case OO_StarEqual:
1149     BinaryOp = BO_MulAssign;
1150     return Stmt::CompoundAssignOperatorClass;
1151 
1152   case OO_SlashEqual:
1153     BinaryOp = BO_DivAssign;
1154     return Stmt::CompoundAssignOperatorClass;
1155 
1156   case OO_PercentEqual:
1157     BinaryOp = BO_RemAssign;
1158     return Stmt::CompoundAssignOperatorClass;
1159 
1160   case OO_CaretEqual:
1161     BinaryOp = BO_XorAssign;
1162     return Stmt::CompoundAssignOperatorClass;
1163 
1164   case OO_AmpEqual:
1165     BinaryOp = BO_AndAssign;
1166     return Stmt::CompoundAssignOperatorClass;
1167 
1168   case OO_PipeEqual:
1169     BinaryOp = BO_OrAssign;
1170     return Stmt::CompoundAssignOperatorClass;
1171 
1172   case OO_LessLess:
1173     BinaryOp = BO_Shl;
1174     return Stmt::BinaryOperatorClass;
1175 
1176   case OO_GreaterGreater:
1177     BinaryOp = BO_Shr;
1178     return Stmt::BinaryOperatorClass;
1179 
1180   case OO_LessLessEqual:
1181     BinaryOp = BO_ShlAssign;
1182     return Stmt::CompoundAssignOperatorClass;
1183 
1184   case OO_GreaterGreaterEqual:
1185     BinaryOp = BO_ShrAssign;
1186     return Stmt::CompoundAssignOperatorClass;
1187 
1188   case OO_EqualEqual:
1189     BinaryOp = BO_EQ;
1190     return Stmt::BinaryOperatorClass;
1191 
1192   case OO_ExclaimEqual:
1193     BinaryOp = BO_NE;
1194     return Stmt::BinaryOperatorClass;
1195 
1196   case OO_LessEqual:
1197     BinaryOp = BO_LE;
1198     return Stmt::BinaryOperatorClass;
1199 
1200   case OO_GreaterEqual:
1201     BinaryOp = BO_GE;
1202     return Stmt::BinaryOperatorClass;
1203 
1204   case OO_AmpAmp:
1205     BinaryOp = BO_LAnd;
1206     return Stmt::BinaryOperatorClass;
1207 
1208   case OO_PipePipe:
1209     BinaryOp = BO_LOr;
1210     return Stmt::BinaryOperatorClass;
1211 
1212   case OO_PlusPlus:
1213     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1214                                   : UO_PostInc;
1215     return Stmt::UnaryOperatorClass;
1216 
1217   case OO_MinusMinus:
1218     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1219                                   : UO_PostDec;
1220     return Stmt::UnaryOperatorClass;
1221 
1222   case OO_Comma:
1223     BinaryOp = BO_Comma;
1224     return Stmt::BinaryOperatorClass;
1225 
1226   case OO_ArrowStar:
1227     BinaryOp = BO_PtrMemI;
1228     return Stmt::BinaryOperatorClass;
1229 
1230   case OO_Subscript:
1231     return Stmt::ArraySubscriptExprClass;
1232   }
1233 
1234   llvm_unreachable("Invalid overloaded operator expression");
1235 }
1236 
1237 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1238   if (S->isTypeDependent()) {
1239     // Type-dependent operator calls are profiled like their underlying
1240     // syntactic operator.
1241     //
1242     // An operator call to operator-> is always implicit, so just skip it. The
1243     // enclosing MemberExpr will profile the actual member access.
1244     if (S->getOperator() == OO_Arrow)
1245       return Visit(S->getArg(0));
1246 
1247     UnaryOperatorKind UnaryOp = UO_Extension;
1248     BinaryOperatorKind BinaryOp = BO_Comma;
1249     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1250 
1251     ID.AddInteger(SC);
1252     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1253       Visit(S->getArg(I));
1254     if (SC == Stmt::UnaryOperatorClass)
1255       ID.AddInteger(UnaryOp);
1256     else if (SC == Stmt::BinaryOperatorClass ||
1257              SC == Stmt::CompoundAssignOperatorClass)
1258       ID.AddInteger(BinaryOp);
1259     else
1260       assert(SC == Stmt::ArraySubscriptExprClass);
1261 
1262     return;
1263   }
1264 
1265   VisitCallExpr(S);
1266   ID.AddInteger(S->getOperator());
1267 }
1268 
1269 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1270   VisitCallExpr(S);
1271 }
1272 
1273 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1274   VisitCallExpr(S);
1275 }
1276 
1277 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1278   VisitExpr(S);
1279 }
1280 
1281 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1282   VisitExplicitCastExpr(S);
1283 }
1284 
1285 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1286   VisitCXXNamedCastExpr(S);
1287 }
1288 
1289 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1290   VisitCXXNamedCastExpr(S);
1291 }
1292 
1293 void
1294 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1295   VisitCXXNamedCastExpr(S);
1296 }
1297 
1298 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1299   VisitCXXNamedCastExpr(S);
1300 }
1301 
1302 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1303   VisitCallExpr(S);
1304 }
1305 
1306 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1307   VisitExpr(S);
1308   ID.AddBoolean(S->getValue());
1309 }
1310 
1311 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1312   VisitExpr(S);
1313 }
1314 
1315 void StmtProfiler::VisitCXXStdInitializerListExpr(
1316     const CXXStdInitializerListExpr *S) {
1317   VisitExpr(S);
1318 }
1319 
1320 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1321   VisitExpr(S);
1322   if (S->isTypeOperand())
1323     VisitType(S->getTypeOperandSourceInfo()->getType());
1324 }
1325 
1326 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1327   VisitExpr(S);
1328   if (S->isTypeOperand())
1329     VisitType(S->getTypeOperandSourceInfo()->getType());
1330 }
1331 
1332 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1333   VisitExpr(S);
1334   VisitDecl(S->getPropertyDecl());
1335 }
1336 
1337 void StmtProfiler::VisitMSPropertySubscriptExpr(
1338     const MSPropertySubscriptExpr *S) {
1339   VisitExpr(S);
1340 }
1341 
1342 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1343   VisitExpr(S);
1344   ID.AddBoolean(S->isImplicit());
1345 }
1346 
1347 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1348   VisitExpr(S);
1349 }
1350 
1351 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1352   VisitExpr(S);
1353   VisitDecl(S->getParam());
1354 }
1355 
1356 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1357   VisitExpr(S);
1358   VisitDecl(S->getField());
1359 }
1360 
1361 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1362   VisitExpr(S);
1363   VisitDecl(
1364          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1365 }
1366 
1367 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1368   VisitExpr(S);
1369   VisitDecl(S->getConstructor());
1370   ID.AddBoolean(S->isElidable());
1371 }
1372 
1373 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
1374     const CXXInheritedCtorInitExpr *S) {
1375   VisitExpr(S);
1376   VisitDecl(S->getConstructor());
1377 }
1378 
1379 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1380   VisitExplicitCastExpr(S);
1381 }
1382 
1383 void
1384 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1385   VisitCXXConstructExpr(S);
1386 }
1387 
1388 void
1389 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1390   VisitExpr(S);
1391   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1392                                  CEnd = S->explicit_capture_end();
1393        C != CEnd; ++C) {
1394     ID.AddInteger(C->getCaptureKind());
1395     switch (C->getCaptureKind()) {
1396     case LCK_StarThis:
1397     case LCK_This:
1398       break;
1399     case LCK_ByRef:
1400     case LCK_ByCopy:
1401       VisitDecl(C->getCapturedVar());
1402       ID.AddBoolean(C->isPackExpansion());
1403       break;
1404     case LCK_VLAType:
1405       llvm_unreachable("VLA type in explicit captures.");
1406     }
1407   }
1408   // Note: If we actually needed to be able to match lambda
1409   // expressions, we would have to consider parameters and return type
1410   // here, among other things.
1411   VisitStmt(S->getBody());
1412 }
1413 
1414 void
1415 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1416   VisitExpr(S);
1417 }
1418 
1419 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1420   VisitExpr(S);
1421   ID.AddBoolean(S->isGlobalDelete());
1422   ID.AddBoolean(S->isArrayForm());
1423   VisitDecl(S->getOperatorDelete());
1424 }
1425 
1426 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1427   VisitExpr(S);
1428   VisitType(S->getAllocatedType());
1429   VisitDecl(S->getOperatorNew());
1430   VisitDecl(S->getOperatorDelete());
1431   ID.AddBoolean(S->isArray());
1432   ID.AddInteger(S->getNumPlacementArgs());
1433   ID.AddBoolean(S->isGlobalNew());
1434   ID.AddBoolean(S->isParenTypeId());
1435   ID.AddInteger(S->getInitializationStyle());
1436 }
1437 
1438 void
1439 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1440   VisitExpr(S);
1441   ID.AddBoolean(S->isArrow());
1442   VisitNestedNameSpecifier(S->getQualifier());
1443   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1444   if (S->getScopeTypeInfo())
1445     VisitType(S->getScopeTypeInfo()->getType());
1446   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1447   if (S->getDestroyedTypeInfo())
1448     VisitType(S->getDestroyedType());
1449   else
1450     ID.AddPointer(S->getDestroyedTypeIdentifier());
1451 }
1452 
1453 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1454   VisitExpr(S);
1455   VisitNestedNameSpecifier(S->getQualifier());
1456   VisitName(S->getName());
1457   ID.AddBoolean(S->hasExplicitTemplateArgs());
1458   if (S->hasExplicitTemplateArgs())
1459     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1460 }
1461 
1462 void
1463 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1464   VisitOverloadExpr(S);
1465 }
1466 
1467 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1468   VisitExpr(S);
1469   ID.AddInteger(S->getTrait());
1470   ID.AddInteger(S->getNumArgs());
1471   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1472     VisitType(S->getArg(I)->getType());
1473 }
1474 
1475 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1476   VisitExpr(S);
1477   ID.AddInteger(S->getTrait());
1478   VisitType(S->getQueriedType());
1479 }
1480 
1481 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1482   VisitExpr(S);
1483   ID.AddInteger(S->getTrait());
1484   VisitExpr(S->getQueriedExpression());
1485 }
1486 
1487 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1488     const DependentScopeDeclRefExpr *S) {
1489   VisitExpr(S);
1490   VisitName(S->getDeclName());
1491   VisitNestedNameSpecifier(S->getQualifier());
1492   ID.AddBoolean(S->hasExplicitTemplateArgs());
1493   if (S->hasExplicitTemplateArgs())
1494     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1495 }
1496 
1497 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1498   VisitExpr(S);
1499 }
1500 
1501 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1502     const CXXUnresolvedConstructExpr *S) {
1503   VisitExpr(S);
1504   VisitType(S->getTypeAsWritten());
1505 }
1506 
1507 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1508     const CXXDependentScopeMemberExpr *S) {
1509   ID.AddBoolean(S->isImplicitAccess());
1510   if (!S->isImplicitAccess()) {
1511     VisitExpr(S);
1512     ID.AddBoolean(S->isArrow());
1513   }
1514   VisitNestedNameSpecifier(S->getQualifier());
1515   VisitName(S->getMember());
1516   ID.AddBoolean(S->hasExplicitTemplateArgs());
1517   if (S->hasExplicitTemplateArgs())
1518     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1519 }
1520 
1521 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1522   ID.AddBoolean(S->isImplicitAccess());
1523   if (!S->isImplicitAccess()) {
1524     VisitExpr(S);
1525     ID.AddBoolean(S->isArrow());
1526   }
1527   VisitNestedNameSpecifier(S->getQualifier());
1528   VisitName(S->getMemberName());
1529   ID.AddBoolean(S->hasExplicitTemplateArgs());
1530   if (S->hasExplicitTemplateArgs())
1531     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1532 }
1533 
1534 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1535   VisitExpr(S);
1536 }
1537 
1538 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1539   VisitExpr(S);
1540 }
1541 
1542 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1543   VisitExpr(S);
1544   VisitDecl(S->getPack());
1545   if (S->isPartiallySubstituted()) {
1546     auto Args = S->getPartialArguments();
1547     ID.AddInteger(Args.size());
1548     for (const auto &TA : Args)
1549       VisitTemplateArgument(TA);
1550   } else {
1551     ID.AddInteger(0);
1552   }
1553 }
1554 
1555 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1556     const SubstNonTypeTemplateParmPackExpr *S) {
1557   VisitExpr(S);
1558   VisitDecl(S->getParameterPack());
1559   VisitTemplateArgument(S->getArgumentPack());
1560 }
1561 
1562 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
1563     const SubstNonTypeTemplateParmExpr *E) {
1564   // Profile exactly as the replacement expression.
1565   Visit(E->getReplacement());
1566 }
1567 
1568 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
1569   VisitExpr(S);
1570   VisitDecl(S->getParameterPack());
1571   ID.AddInteger(S->getNumExpansions());
1572   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
1573     VisitDecl(*I);
1574 }
1575 
1576 void StmtProfiler::VisitMaterializeTemporaryExpr(
1577                                            const MaterializeTemporaryExpr *S) {
1578   VisitExpr(S);
1579 }
1580 
1581 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
1582   VisitExpr(S);
1583   ID.AddInteger(S->getOperator());
1584 }
1585 
1586 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
1587   VisitStmt(S);
1588 }
1589 
1590 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
1591   VisitStmt(S);
1592 }
1593 
1594 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
1595   VisitExpr(S);
1596 }
1597 
1598 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
1599   VisitExpr(S);
1600 }
1601 
1602 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
1603   VisitExpr(E);
1604 }
1605 
1606 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
1607   VisitExpr(E);
1608 }
1609 
1610 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
1611   VisitExpr(S);
1612 }
1613 
1614 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
1615   VisitExpr(E);
1616 }
1617 
1618 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
1619   VisitExpr(E);
1620 }
1621 
1622 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
1623   VisitExpr(E);
1624 }
1625 
1626 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
1627   VisitExpr(S);
1628   VisitType(S->getEncodedType());
1629 }
1630 
1631 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
1632   VisitExpr(S);
1633   VisitName(S->getSelector());
1634 }
1635 
1636 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
1637   VisitExpr(S);
1638   VisitDecl(S->getProtocol());
1639 }
1640 
1641 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
1642   VisitExpr(S);
1643   VisitDecl(S->getDecl());
1644   ID.AddBoolean(S->isArrow());
1645   ID.AddBoolean(S->isFreeIvar());
1646 }
1647 
1648 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
1649   VisitExpr(S);
1650   if (S->isImplicitProperty()) {
1651     VisitDecl(S->getImplicitPropertyGetter());
1652     VisitDecl(S->getImplicitPropertySetter());
1653   } else {
1654     VisitDecl(S->getExplicitProperty());
1655   }
1656   if (S->isSuperReceiver()) {
1657     ID.AddBoolean(S->isSuperReceiver());
1658     VisitType(S->getSuperReceiverType());
1659   }
1660 }
1661 
1662 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
1663   VisitExpr(S);
1664   VisitDecl(S->getAtIndexMethodDecl());
1665   VisitDecl(S->setAtIndexMethodDecl());
1666 }
1667 
1668 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
1669   VisitExpr(S);
1670   VisitName(S->getSelector());
1671   VisitDecl(S->getMethodDecl());
1672 }
1673 
1674 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
1675   VisitExpr(S);
1676   ID.AddBoolean(S->isArrow());
1677 }
1678 
1679 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
1680   VisitExpr(S);
1681   ID.AddBoolean(S->getValue());
1682 }
1683 
1684 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
1685     const ObjCIndirectCopyRestoreExpr *S) {
1686   VisitExpr(S);
1687   ID.AddBoolean(S->shouldCopy());
1688 }
1689 
1690 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
1691   VisitExplicitCastExpr(S);
1692   ID.AddBoolean(S->getBridgeKind());
1693 }
1694 
1695 void StmtProfiler::VisitObjCAvailabilityCheckExpr(
1696     const ObjCAvailabilityCheckExpr *S) {
1697   VisitExpr(S);
1698 }
1699 
1700 void StmtProfiler::VisitDecl(const Decl *D) {
1701   ID.AddInteger(D? D->getKind() : 0);
1702 
1703   if (Canonical && D) {
1704     if (const NonTypeTemplateParmDecl *NTTP =
1705           dyn_cast<NonTypeTemplateParmDecl>(D)) {
1706       ID.AddInteger(NTTP->getDepth());
1707       ID.AddInteger(NTTP->getIndex());
1708       ID.AddBoolean(NTTP->isParameterPack());
1709       VisitType(NTTP->getType());
1710       return;
1711     }
1712 
1713     if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
1714       // The Itanium C++ ABI uses the type, scope depth, and scope
1715       // index of a parameter when mangling expressions that involve
1716       // function parameters, so we will use the parameter's type for
1717       // establishing function parameter identity. That way, our
1718       // definition of "equivalent" (per C++ [temp.over.link]) is at
1719       // least as strong as the definition of "equivalent" used for
1720       // name mangling.
1721       VisitType(Parm->getType());
1722       ID.AddInteger(Parm->getFunctionScopeDepth());
1723       ID.AddInteger(Parm->getFunctionScopeIndex());
1724       return;
1725     }
1726 
1727     if (const TemplateTypeParmDecl *TTP =
1728           dyn_cast<TemplateTypeParmDecl>(D)) {
1729       ID.AddInteger(TTP->getDepth());
1730       ID.AddInteger(TTP->getIndex());
1731       ID.AddBoolean(TTP->isParameterPack());
1732       return;
1733     }
1734 
1735     if (const TemplateTemplateParmDecl *TTP =
1736           dyn_cast<TemplateTemplateParmDecl>(D)) {
1737       ID.AddInteger(TTP->getDepth());
1738       ID.AddInteger(TTP->getIndex());
1739       ID.AddBoolean(TTP->isParameterPack());
1740       return;
1741     }
1742   }
1743 
1744   ID.AddPointer(D? D->getCanonicalDecl() : nullptr);
1745 }
1746 
1747 void StmtProfiler::VisitType(QualType T) {
1748   if (Canonical)
1749     T = Context.getCanonicalType(T);
1750 
1751   ID.AddPointer(T.getAsOpaquePtr());
1752 }
1753 
1754 void StmtProfiler::VisitName(DeclarationName Name) {
1755   ID.AddPointer(Name.getAsOpaquePtr());
1756 }
1757 
1758 void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
1759   if (Canonical)
1760     NNS = Context.getCanonicalNestedNameSpecifier(NNS);
1761   ID.AddPointer(NNS);
1762 }
1763 
1764 void StmtProfiler::VisitTemplateName(TemplateName Name) {
1765   if (Canonical)
1766     Name = Context.getCanonicalTemplateName(Name);
1767 
1768   Name.Profile(ID);
1769 }
1770 
1771 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
1772                                           unsigned NumArgs) {
1773   ID.AddInteger(NumArgs);
1774   for (unsigned I = 0; I != NumArgs; ++I)
1775     VisitTemplateArgument(Args[I].getArgument());
1776 }
1777 
1778 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
1779   // Mostly repetitive with TemplateArgument::Profile!
1780   ID.AddInteger(Arg.getKind());
1781   switch (Arg.getKind()) {
1782   case TemplateArgument::Null:
1783     break;
1784 
1785   case TemplateArgument::Type:
1786     VisitType(Arg.getAsType());
1787     break;
1788 
1789   case TemplateArgument::Template:
1790   case TemplateArgument::TemplateExpansion:
1791     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
1792     break;
1793 
1794   case TemplateArgument::Declaration:
1795     VisitDecl(Arg.getAsDecl());
1796     break;
1797 
1798   case TemplateArgument::NullPtr:
1799     VisitType(Arg.getNullPtrType());
1800     break;
1801 
1802   case TemplateArgument::Integral:
1803     Arg.getAsIntegral().Profile(ID);
1804     VisitType(Arg.getIntegralType());
1805     break;
1806 
1807   case TemplateArgument::Expression:
1808     Visit(Arg.getAsExpr());
1809     break;
1810 
1811   case TemplateArgument::Pack:
1812     for (const auto &P : Arg.pack_elements())
1813       VisitTemplateArgument(P);
1814     break;
1815   }
1816 }
1817 
1818 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
1819                    bool Canonical) const {
1820   StmtProfiler Profiler(ID, Context, Canonical);
1821   Profiler.Visit(this);
1822 }
1823