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::VisitExpr(const Expr *S) {
757   VisitStmt(S);
758 }
759 
760 void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
761   VisitExpr(S);
762   if (!Canonical)
763     VisitNestedNameSpecifier(S->getQualifier());
764   VisitDecl(S->getDecl());
765   if (!Canonical)
766     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
767 }
768 
769 void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
770   VisitExpr(S);
771   ID.AddInteger(S->getIdentType());
772 }
773 
774 void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
775   VisitExpr(S);
776   S->getValue().Profile(ID);
777   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
778 }
779 
780 void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
781   VisitExpr(S);
782   ID.AddInteger(S->getKind());
783   ID.AddInteger(S->getValue());
784 }
785 
786 void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
787   VisitExpr(S);
788   S->getValue().Profile(ID);
789   ID.AddBoolean(S->isExact());
790   ID.AddInteger(S->getType()->castAs<BuiltinType>()->getKind());
791 }
792 
793 void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
794   VisitExpr(S);
795 }
796 
797 void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
798   VisitExpr(S);
799   ID.AddString(S->getBytes());
800   ID.AddInteger(S->getKind());
801 }
802 
803 void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
804   VisitExpr(S);
805 }
806 
807 void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
808   VisitExpr(S);
809 }
810 
811 void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
812   VisitExpr(S);
813   ID.AddInteger(S->getOpcode());
814 }
815 
816 void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
817   VisitType(S->getTypeSourceInfo()->getType());
818   unsigned n = S->getNumComponents();
819   for (unsigned i = 0; i < n; ++i) {
820     const OffsetOfNode &ON = S->getComponent(i);
821     ID.AddInteger(ON.getKind());
822     switch (ON.getKind()) {
823     case OffsetOfNode::Array:
824       // Expressions handled below.
825       break;
826 
827     case OffsetOfNode::Field:
828       VisitDecl(ON.getField());
829       break;
830 
831     case OffsetOfNode::Identifier:
832       ID.AddPointer(ON.getFieldName());
833       break;
834 
835     case OffsetOfNode::Base:
836       // These nodes are implicit, and therefore don't need profiling.
837       break;
838     }
839   }
840 
841   VisitExpr(S);
842 }
843 
844 void
845 StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
846   VisitExpr(S);
847   ID.AddInteger(S->getKind());
848   if (S->isArgumentType())
849     VisitType(S->getArgumentType());
850 }
851 
852 void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
853   VisitExpr(S);
854 }
855 
856 void StmtProfiler::VisitOMPArraySectionExpr(const OMPArraySectionExpr *S) {
857   VisitExpr(S);
858 }
859 
860 void StmtProfiler::VisitCallExpr(const CallExpr *S) {
861   VisitExpr(S);
862 }
863 
864 void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
865   VisitExpr(S);
866   VisitDecl(S->getMemberDecl());
867   if (!Canonical)
868     VisitNestedNameSpecifier(S->getQualifier());
869   ID.AddBoolean(S->isArrow());
870 }
871 
872 void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
873   VisitExpr(S);
874   ID.AddBoolean(S->isFileScope());
875 }
876 
877 void StmtProfiler::VisitCastExpr(const CastExpr *S) {
878   VisitExpr(S);
879 }
880 
881 void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
882   VisitCastExpr(S);
883   ID.AddInteger(S->getValueKind());
884 }
885 
886 void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
887   VisitCastExpr(S);
888   VisitType(S->getTypeAsWritten());
889 }
890 
891 void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
892   VisitExplicitCastExpr(S);
893 }
894 
895 void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
896   VisitExpr(S);
897   ID.AddInteger(S->getOpcode());
898 }
899 
900 void
901 StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
902   VisitBinaryOperator(S);
903 }
904 
905 void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
906   VisitExpr(S);
907 }
908 
909 void StmtProfiler::VisitBinaryConditionalOperator(
910     const BinaryConditionalOperator *S) {
911   VisitExpr(S);
912 }
913 
914 void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
915   VisitExpr(S);
916   VisitDecl(S->getLabel());
917 }
918 
919 void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
920   VisitExpr(S);
921 }
922 
923 void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
924   VisitExpr(S);
925 }
926 
927 void StmtProfiler::VisitConvertVectorExpr(const ConvertVectorExpr *S) {
928   VisitExpr(S);
929 }
930 
931 void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
932   VisitExpr(S);
933 }
934 
935 void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
936   VisitExpr(S);
937 }
938 
939 void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
940   VisitExpr(S);
941 }
942 
943 void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
944   if (S->getSyntacticForm()) {
945     VisitInitListExpr(S->getSyntacticForm());
946     return;
947   }
948 
949   VisitExpr(S);
950 }
951 
952 void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
953   VisitExpr(S);
954   ID.AddBoolean(S->usesGNUSyntax());
955   for (const DesignatedInitExpr::Designator &D : S->designators()) {
956     if (D.isFieldDesignator()) {
957       ID.AddInteger(0);
958       VisitName(D.getFieldName());
959       continue;
960     }
961 
962     if (D.isArrayDesignator()) {
963       ID.AddInteger(1);
964     } else {
965       assert(D.isArrayRangeDesignator());
966       ID.AddInteger(2);
967     }
968     ID.AddInteger(D.getFirstExprIndex());
969   }
970 }
971 
972 // Seems that if VisitInitListExpr() only works on the syntactic form of an
973 // InitListExpr, then a DesignatedInitUpdateExpr is not encountered.
974 void StmtProfiler::VisitDesignatedInitUpdateExpr(
975     const DesignatedInitUpdateExpr *S) {
976   llvm_unreachable("Unexpected DesignatedInitUpdateExpr in syntactic form of "
977                    "initializer");
978 }
979 
980 void StmtProfiler::VisitArrayInitLoopExpr(const ArrayInitLoopExpr *S) {
981   VisitExpr(S);
982 }
983 
984 void StmtProfiler::VisitArrayInitIndexExpr(const ArrayInitIndexExpr *S) {
985   VisitExpr(S);
986 }
987 
988 void StmtProfiler::VisitNoInitExpr(const NoInitExpr *S) {
989   llvm_unreachable("Unexpected NoInitExpr in syntactic form of initializer");
990 }
991 
992 void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
993   VisitExpr(S);
994 }
995 
996 void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
997   VisitExpr(S);
998   VisitName(&S->getAccessor());
999 }
1000 
1001 void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
1002   VisitExpr(S);
1003   VisitDecl(S->getBlockDecl());
1004 }
1005 
1006 void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
1007   VisitExpr(S);
1008   for (unsigned i = 0; i != S->getNumAssocs(); ++i) {
1009     QualType T = S->getAssocType(i);
1010     if (T.isNull())
1011       ID.AddPointer(nullptr);
1012     else
1013       VisitType(T);
1014     VisitExpr(S->getAssocExpr(i));
1015   }
1016 }
1017 
1018 void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
1019   VisitExpr(S);
1020   for (PseudoObjectExpr::const_semantics_iterator
1021          i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
1022     // Normally, we would not profile the source expressions of OVEs.
1023     if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
1024       Visit(OVE->getSourceExpr());
1025 }
1026 
1027 void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
1028   VisitExpr(S);
1029   ID.AddInteger(S->getOp());
1030 }
1031 
1032 static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
1033                                           UnaryOperatorKind &UnaryOp,
1034                                           BinaryOperatorKind &BinaryOp) {
1035   switch (S->getOperator()) {
1036   case OO_None:
1037   case OO_New:
1038   case OO_Delete:
1039   case OO_Array_New:
1040   case OO_Array_Delete:
1041   case OO_Arrow:
1042   case OO_Call:
1043   case OO_Conditional:
1044   case OO_Coawait:
1045   case NUM_OVERLOADED_OPERATORS:
1046     llvm_unreachable("Invalid operator call kind");
1047 
1048   case OO_Plus:
1049     if (S->getNumArgs() == 1) {
1050       UnaryOp = UO_Plus;
1051       return Stmt::UnaryOperatorClass;
1052     }
1053 
1054     BinaryOp = BO_Add;
1055     return Stmt::BinaryOperatorClass;
1056 
1057   case OO_Minus:
1058     if (S->getNumArgs() == 1) {
1059       UnaryOp = UO_Minus;
1060       return Stmt::UnaryOperatorClass;
1061     }
1062 
1063     BinaryOp = BO_Sub;
1064     return Stmt::BinaryOperatorClass;
1065 
1066   case OO_Star:
1067     if (S->getNumArgs() == 1) {
1068       UnaryOp = UO_Deref;
1069       return Stmt::UnaryOperatorClass;
1070     }
1071 
1072     BinaryOp = BO_Mul;
1073     return Stmt::BinaryOperatorClass;
1074 
1075   case OO_Slash:
1076     BinaryOp = BO_Div;
1077     return Stmt::BinaryOperatorClass;
1078 
1079   case OO_Percent:
1080     BinaryOp = BO_Rem;
1081     return Stmt::BinaryOperatorClass;
1082 
1083   case OO_Caret:
1084     BinaryOp = BO_Xor;
1085     return Stmt::BinaryOperatorClass;
1086 
1087   case OO_Amp:
1088     if (S->getNumArgs() == 1) {
1089       UnaryOp = UO_AddrOf;
1090       return Stmt::UnaryOperatorClass;
1091     }
1092 
1093     BinaryOp = BO_And;
1094     return Stmt::BinaryOperatorClass;
1095 
1096   case OO_Pipe:
1097     BinaryOp = BO_Or;
1098     return Stmt::BinaryOperatorClass;
1099 
1100   case OO_Tilde:
1101     UnaryOp = UO_Not;
1102     return Stmt::UnaryOperatorClass;
1103 
1104   case OO_Exclaim:
1105     UnaryOp = UO_LNot;
1106     return Stmt::UnaryOperatorClass;
1107 
1108   case OO_Equal:
1109     BinaryOp = BO_Assign;
1110     return Stmt::BinaryOperatorClass;
1111 
1112   case OO_Less:
1113     BinaryOp = BO_LT;
1114     return Stmt::BinaryOperatorClass;
1115 
1116   case OO_Greater:
1117     BinaryOp = BO_GT;
1118     return Stmt::BinaryOperatorClass;
1119 
1120   case OO_PlusEqual:
1121     BinaryOp = BO_AddAssign;
1122     return Stmt::CompoundAssignOperatorClass;
1123 
1124   case OO_MinusEqual:
1125     BinaryOp = BO_SubAssign;
1126     return Stmt::CompoundAssignOperatorClass;
1127 
1128   case OO_StarEqual:
1129     BinaryOp = BO_MulAssign;
1130     return Stmt::CompoundAssignOperatorClass;
1131 
1132   case OO_SlashEqual:
1133     BinaryOp = BO_DivAssign;
1134     return Stmt::CompoundAssignOperatorClass;
1135 
1136   case OO_PercentEqual:
1137     BinaryOp = BO_RemAssign;
1138     return Stmt::CompoundAssignOperatorClass;
1139 
1140   case OO_CaretEqual:
1141     BinaryOp = BO_XorAssign;
1142     return Stmt::CompoundAssignOperatorClass;
1143 
1144   case OO_AmpEqual:
1145     BinaryOp = BO_AndAssign;
1146     return Stmt::CompoundAssignOperatorClass;
1147 
1148   case OO_PipeEqual:
1149     BinaryOp = BO_OrAssign;
1150     return Stmt::CompoundAssignOperatorClass;
1151 
1152   case OO_LessLess:
1153     BinaryOp = BO_Shl;
1154     return Stmt::BinaryOperatorClass;
1155 
1156   case OO_GreaterGreater:
1157     BinaryOp = BO_Shr;
1158     return Stmt::BinaryOperatorClass;
1159 
1160   case OO_LessLessEqual:
1161     BinaryOp = BO_ShlAssign;
1162     return Stmt::CompoundAssignOperatorClass;
1163 
1164   case OO_GreaterGreaterEqual:
1165     BinaryOp = BO_ShrAssign;
1166     return Stmt::CompoundAssignOperatorClass;
1167 
1168   case OO_EqualEqual:
1169     BinaryOp = BO_EQ;
1170     return Stmt::BinaryOperatorClass;
1171 
1172   case OO_ExclaimEqual:
1173     BinaryOp = BO_NE;
1174     return Stmt::BinaryOperatorClass;
1175 
1176   case OO_LessEqual:
1177     BinaryOp = BO_LE;
1178     return Stmt::BinaryOperatorClass;
1179 
1180   case OO_GreaterEqual:
1181     BinaryOp = BO_GE;
1182     return Stmt::BinaryOperatorClass;
1183 
1184   case OO_AmpAmp:
1185     BinaryOp = BO_LAnd;
1186     return Stmt::BinaryOperatorClass;
1187 
1188   case OO_PipePipe:
1189     BinaryOp = BO_LOr;
1190     return Stmt::BinaryOperatorClass;
1191 
1192   case OO_PlusPlus:
1193     UnaryOp = S->getNumArgs() == 1? UO_PreInc
1194                                   : UO_PostInc;
1195     return Stmt::UnaryOperatorClass;
1196 
1197   case OO_MinusMinus:
1198     UnaryOp = S->getNumArgs() == 1? UO_PreDec
1199                                   : UO_PostDec;
1200     return Stmt::UnaryOperatorClass;
1201 
1202   case OO_Comma:
1203     BinaryOp = BO_Comma;
1204     return Stmt::BinaryOperatorClass;
1205 
1206   case OO_ArrowStar:
1207     BinaryOp = BO_PtrMemI;
1208     return Stmt::BinaryOperatorClass;
1209 
1210   case OO_Subscript:
1211     return Stmt::ArraySubscriptExprClass;
1212   }
1213 
1214   llvm_unreachable("Invalid overloaded operator expression");
1215 }
1216 
1217 void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
1218   if (S->isTypeDependent()) {
1219     // Type-dependent operator calls are profiled like their underlying
1220     // syntactic operator.
1221     //
1222     // An operator call to operator-> is always implicit, so just skip it. The
1223     // enclosing MemberExpr will profile the actual member access.
1224     if (S->getOperator() == OO_Arrow)
1225       return Visit(S->getArg(0));
1226 
1227     UnaryOperatorKind UnaryOp = UO_Extension;
1228     BinaryOperatorKind BinaryOp = BO_Comma;
1229     Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
1230 
1231     ID.AddInteger(SC);
1232     for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1233       Visit(S->getArg(I));
1234     if (SC == Stmt::UnaryOperatorClass)
1235       ID.AddInteger(UnaryOp);
1236     else if (SC == Stmt::BinaryOperatorClass ||
1237              SC == Stmt::CompoundAssignOperatorClass)
1238       ID.AddInteger(BinaryOp);
1239     else
1240       assert(SC == Stmt::ArraySubscriptExprClass);
1241 
1242     return;
1243   }
1244 
1245   VisitCallExpr(S);
1246   ID.AddInteger(S->getOperator());
1247 }
1248 
1249 void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
1250   VisitCallExpr(S);
1251 }
1252 
1253 void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
1254   VisitCallExpr(S);
1255 }
1256 
1257 void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
1258   VisitExpr(S);
1259 }
1260 
1261 void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
1262   VisitExplicitCastExpr(S);
1263 }
1264 
1265 void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
1266   VisitCXXNamedCastExpr(S);
1267 }
1268 
1269 void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
1270   VisitCXXNamedCastExpr(S);
1271 }
1272 
1273 void
1274 StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
1275   VisitCXXNamedCastExpr(S);
1276 }
1277 
1278 void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
1279   VisitCXXNamedCastExpr(S);
1280 }
1281 
1282 void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
1283   VisitCallExpr(S);
1284 }
1285 
1286 void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
1287   VisitExpr(S);
1288   ID.AddBoolean(S->getValue());
1289 }
1290 
1291 void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
1292   VisitExpr(S);
1293 }
1294 
1295 void StmtProfiler::VisitCXXStdInitializerListExpr(
1296     const CXXStdInitializerListExpr *S) {
1297   VisitExpr(S);
1298 }
1299 
1300 void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
1301   VisitExpr(S);
1302   if (S->isTypeOperand())
1303     VisitType(S->getTypeOperandSourceInfo()->getType());
1304 }
1305 
1306 void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
1307   VisitExpr(S);
1308   if (S->isTypeOperand())
1309     VisitType(S->getTypeOperandSourceInfo()->getType());
1310 }
1311 
1312 void StmtProfiler::VisitMSPropertyRefExpr(const MSPropertyRefExpr *S) {
1313   VisitExpr(S);
1314   VisitDecl(S->getPropertyDecl());
1315 }
1316 
1317 void StmtProfiler::VisitMSPropertySubscriptExpr(
1318     const MSPropertySubscriptExpr *S) {
1319   VisitExpr(S);
1320 }
1321 
1322 void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
1323   VisitExpr(S);
1324   ID.AddBoolean(S->isImplicit());
1325 }
1326 
1327 void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
1328   VisitExpr(S);
1329 }
1330 
1331 void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
1332   VisitExpr(S);
1333   VisitDecl(S->getParam());
1334 }
1335 
1336 void StmtProfiler::VisitCXXDefaultInitExpr(const CXXDefaultInitExpr *S) {
1337   VisitExpr(S);
1338   VisitDecl(S->getField());
1339 }
1340 
1341 void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
1342   VisitExpr(S);
1343   VisitDecl(
1344          const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
1345 }
1346 
1347 void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
1348   VisitExpr(S);
1349   VisitDecl(S->getConstructor());
1350   ID.AddBoolean(S->isElidable());
1351 }
1352 
1353 void StmtProfiler::VisitCXXInheritedCtorInitExpr(
1354     const CXXInheritedCtorInitExpr *S) {
1355   VisitExpr(S);
1356   VisitDecl(S->getConstructor());
1357 }
1358 
1359 void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
1360   VisitExplicitCastExpr(S);
1361 }
1362 
1363 void
1364 StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
1365   VisitCXXConstructExpr(S);
1366 }
1367 
1368 void
1369 StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
1370   VisitExpr(S);
1371   for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
1372                                  CEnd = S->explicit_capture_end();
1373        C != CEnd; ++C) {
1374     ID.AddInteger(C->getCaptureKind());
1375     switch (C->getCaptureKind()) {
1376     case LCK_StarThis:
1377     case LCK_This:
1378       break;
1379     case LCK_ByRef:
1380     case LCK_ByCopy:
1381       VisitDecl(C->getCapturedVar());
1382       ID.AddBoolean(C->isPackExpansion());
1383       break;
1384     case LCK_VLAType:
1385       llvm_unreachable("VLA type in explicit captures.");
1386     }
1387   }
1388   // Note: If we actually needed to be able to match lambda
1389   // expressions, we would have to consider parameters and return type
1390   // here, among other things.
1391   VisitStmt(S->getBody());
1392 }
1393 
1394 void
1395 StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
1396   VisitExpr(S);
1397 }
1398 
1399 void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
1400   VisitExpr(S);
1401   ID.AddBoolean(S->isGlobalDelete());
1402   ID.AddBoolean(S->isArrayForm());
1403   VisitDecl(S->getOperatorDelete());
1404 }
1405 
1406 void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
1407   VisitExpr(S);
1408   VisitType(S->getAllocatedType());
1409   VisitDecl(S->getOperatorNew());
1410   VisitDecl(S->getOperatorDelete());
1411   ID.AddBoolean(S->isArray());
1412   ID.AddInteger(S->getNumPlacementArgs());
1413   ID.AddBoolean(S->isGlobalNew());
1414   ID.AddBoolean(S->isParenTypeId());
1415   ID.AddInteger(S->getInitializationStyle());
1416 }
1417 
1418 void
1419 StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
1420   VisitExpr(S);
1421   ID.AddBoolean(S->isArrow());
1422   VisitNestedNameSpecifier(S->getQualifier());
1423   ID.AddBoolean(S->getScopeTypeInfo() != nullptr);
1424   if (S->getScopeTypeInfo())
1425     VisitType(S->getScopeTypeInfo()->getType());
1426   ID.AddBoolean(S->getDestroyedTypeInfo() != nullptr);
1427   if (S->getDestroyedTypeInfo())
1428     VisitType(S->getDestroyedType());
1429   else
1430     ID.AddPointer(S->getDestroyedTypeIdentifier());
1431 }
1432 
1433 void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
1434   VisitExpr(S);
1435   VisitNestedNameSpecifier(S->getQualifier());
1436   VisitName(S->getName());
1437   ID.AddBoolean(S->hasExplicitTemplateArgs());
1438   if (S->hasExplicitTemplateArgs())
1439     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1440 }
1441 
1442 void
1443 StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
1444   VisitOverloadExpr(S);
1445 }
1446 
1447 void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
1448   VisitExpr(S);
1449   ID.AddInteger(S->getTrait());
1450   ID.AddInteger(S->getNumArgs());
1451   for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
1452     VisitType(S->getArg(I)->getType());
1453 }
1454 
1455 void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
1456   VisitExpr(S);
1457   ID.AddInteger(S->getTrait());
1458   VisitType(S->getQueriedType());
1459 }
1460 
1461 void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
1462   VisitExpr(S);
1463   ID.AddInteger(S->getTrait());
1464   VisitExpr(S->getQueriedExpression());
1465 }
1466 
1467 void StmtProfiler::VisitDependentScopeDeclRefExpr(
1468     const DependentScopeDeclRefExpr *S) {
1469   VisitExpr(S);
1470   VisitName(S->getDeclName());
1471   VisitNestedNameSpecifier(S->getQualifier());
1472   ID.AddBoolean(S->hasExplicitTemplateArgs());
1473   if (S->hasExplicitTemplateArgs())
1474     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1475 }
1476 
1477 void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
1478   VisitExpr(S);
1479 }
1480 
1481 void StmtProfiler::VisitCXXUnresolvedConstructExpr(
1482     const CXXUnresolvedConstructExpr *S) {
1483   VisitExpr(S);
1484   VisitType(S->getTypeAsWritten());
1485 }
1486 
1487 void StmtProfiler::VisitCXXDependentScopeMemberExpr(
1488     const CXXDependentScopeMemberExpr *S) {
1489   ID.AddBoolean(S->isImplicitAccess());
1490   if (!S->isImplicitAccess()) {
1491     VisitExpr(S);
1492     ID.AddBoolean(S->isArrow());
1493   }
1494   VisitNestedNameSpecifier(S->getQualifier());
1495   VisitName(S->getMember());
1496   ID.AddBoolean(S->hasExplicitTemplateArgs());
1497   if (S->hasExplicitTemplateArgs())
1498     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1499 }
1500 
1501 void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
1502   ID.AddBoolean(S->isImplicitAccess());
1503   if (!S->isImplicitAccess()) {
1504     VisitExpr(S);
1505     ID.AddBoolean(S->isArrow());
1506   }
1507   VisitNestedNameSpecifier(S->getQualifier());
1508   VisitName(S->getMemberName());
1509   ID.AddBoolean(S->hasExplicitTemplateArgs());
1510   if (S->hasExplicitTemplateArgs())
1511     VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
1512 }
1513 
1514 void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
1515   VisitExpr(S);
1516 }
1517 
1518 void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
1519   VisitExpr(S);
1520 }
1521 
1522 void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
1523   VisitExpr(S);
1524   VisitDecl(S->getPack());
1525   if (S->isPartiallySubstituted()) {
1526     auto Args = S->getPartialArguments();
1527     ID.AddInteger(Args.size());
1528     for (const auto &TA : Args)
1529       VisitTemplateArgument(TA);
1530   } else {
1531     ID.AddInteger(0);
1532   }
1533 }
1534 
1535 void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
1536     const SubstNonTypeTemplateParmPackExpr *S) {
1537   VisitExpr(S);
1538   VisitDecl(S->getParameterPack());
1539   VisitTemplateArgument(S->getArgumentPack());
1540 }
1541 
1542 void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
1543     const SubstNonTypeTemplateParmExpr *E) {
1544   // Profile exactly as the replacement expression.
1545   Visit(E->getReplacement());
1546 }
1547 
1548 void StmtProfiler::VisitFunctionParmPackExpr(const FunctionParmPackExpr *S) {
1549   VisitExpr(S);
1550   VisitDecl(S->getParameterPack());
1551   ID.AddInteger(S->getNumExpansions());
1552   for (FunctionParmPackExpr::iterator I = S->begin(), E = S->end(); I != E; ++I)
1553     VisitDecl(*I);
1554 }
1555 
1556 void StmtProfiler::VisitMaterializeTemporaryExpr(
1557                                            const MaterializeTemporaryExpr *S) {
1558   VisitExpr(S);
1559 }
1560 
1561 void StmtProfiler::VisitCXXFoldExpr(const CXXFoldExpr *S) {
1562   VisitExpr(S);
1563   ID.AddInteger(S->getOperator());
1564 }
1565 
1566 void StmtProfiler::VisitCoroutineBodyStmt(const CoroutineBodyStmt *S) {
1567   VisitStmt(S);
1568 }
1569 
1570 void StmtProfiler::VisitCoreturnStmt(const CoreturnStmt *S) {
1571   VisitStmt(S);
1572 }
1573 
1574 void StmtProfiler::VisitCoawaitExpr(const CoawaitExpr *S) {
1575   VisitExpr(S);
1576 }
1577 
1578 void StmtProfiler::VisitCoyieldExpr(const CoyieldExpr *S) {
1579   VisitExpr(S);
1580 }
1581 
1582 void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
1583   VisitExpr(E);
1584 }
1585 
1586 void StmtProfiler::VisitTypoExpr(const TypoExpr *E) {
1587   VisitExpr(E);
1588 }
1589 
1590 void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
1591   VisitExpr(S);
1592 }
1593 
1594 void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
1595   VisitExpr(E);
1596 }
1597 
1598 void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
1599   VisitExpr(E);
1600 }
1601 
1602 void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
1603   VisitExpr(E);
1604 }
1605 
1606 void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
1607   VisitExpr(S);
1608   VisitType(S->getEncodedType());
1609 }
1610 
1611 void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
1612   VisitExpr(S);
1613   VisitName(S->getSelector());
1614 }
1615 
1616 void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
1617   VisitExpr(S);
1618   VisitDecl(S->getProtocol());
1619 }
1620 
1621 void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
1622   VisitExpr(S);
1623   VisitDecl(S->getDecl());
1624   ID.AddBoolean(S->isArrow());
1625   ID.AddBoolean(S->isFreeIvar());
1626 }
1627 
1628 void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
1629   VisitExpr(S);
1630   if (S->isImplicitProperty()) {
1631     VisitDecl(S->getImplicitPropertyGetter());
1632     VisitDecl(S->getImplicitPropertySetter());
1633   } else {
1634     VisitDecl(S->getExplicitProperty());
1635   }
1636   if (S->isSuperReceiver()) {
1637     ID.AddBoolean(S->isSuperReceiver());
1638     VisitType(S->getSuperReceiverType());
1639   }
1640 }
1641 
1642 void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
1643   VisitExpr(S);
1644   VisitDecl(S->getAtIndexMethodDecl());
1645   VisitDecl(S->setAtIndexMethodDecl());
1646 }
1647 
1648 void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
1649   VisitExpr(S);
1650   VisitName(S->getSelector());
1651   VisitDecl(S->getMethodDecl());
1652 }
1653 
1654 void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
1655   VisitExpr(S);
1656   ID.AddBoolean(S->isArrow());
1657 }
1658 
1659 void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
1660   VisitExpr(S);
1661   ID.AddBoolean(S->getValue());
1662 }
1663 
1664 void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
1665     const ObjCIndirectCopyRestoreExpr *S) {
1666   VisitExpr(S);
1667   ID.AddBoolean(S->shouldCopy());
1668 }
1669 
1670 void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
1671   VisitExplicitCastExpr(S);
1672   ID.AddBoolean(S->getBridgeKind());
1673 }
1674 
1675 void StmtProfiler::VisitObjCAvailabilityCheckExpr(
1676     const ObjCAvailabilityCheckExpr *S) {
1677   VisitExpr(S);
1678 }
1679 
1680 void StmtProfiler::VisitDecl(const Decl *D) {
1681   ID.AddInteger(D? D->getKind() : 0);
1682 
1683   if (Canonical && D) {
1684     if (const NonTypeTemplateParmDecl *NTTP =
1685           dyn_cast<NonTypeTemplateParmDecl>(D)) {
1686       ID.AddInteger(NTTP->getDepth());
1687       ID.AddInteger(NTTP->getIndex());
1688       ID.AddBoolean(NTTP->isParameterPack());
1689       VisitType(NTTP->getType());
1690       return;
1691     }
1692 
1693     if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
1694       // The Itanium C++ ABI uses the type, scope depth, and scope
1695       // index of a parameter when mangling expressions that involve
1696       // function parameters, so we will use the parameter's type for
1697       // establishing function parameter identity. That way, our
1698       // definition of "equivalent" (per C++ [temp.over.link]) is at
1699       // least as strong as the definition of "equivalent" used for
1700       // name mangling.
1701       VisitType(Parm->getType());
1702       ID.AddInteger(Parm->getFunctionScopeDepth());
1703       ID.AddInteger(Parm->getFunctionScopeIndex());
1704       return;
1705     }
1706 
1707     if (const TemplateTypeParmDecl *TTP =
1708           dyn_cast<TemplateTypeParmDecl>(D)) {
1709       ID.AddInteger(TTP->getDepth());
1710       ID.AddInteger(TTP->getIndex());
1711       ID.AddBoolean(TTP->isParameterPack());
1712       return;
1713     }
1714 
1715     if (const TemplateTemplateParmDecl *TTP =
1716           dyn_cast<TemplateTemplateParmDecl>(D)) {
1717       ID.AddInteger(TTP->getDepth());
1718       ID.AddInteger(TTP->getIndex());
1719       ID.AddBoolean(TTP->isParameterPack());
1720       return;
1721     }
1722   }
1723 
1724   ID.AddPointer(D? D->getCanonicalDecl() : nullptr);
1725 }
1726 
1727 void StmtProfiler::VisitType(QualType T) {
1728   if (Canonical)
1729     T = Context.getCanonicalType(T);
1730 
1731   ID.AddPointer(T.getAsOpaquePtr());
1732 }
1733 
1734 void StmtProfiler::VisitName(DeclarationName Name) {
1735   ID.AddPointer(Name.getAsOpaquePtr());
1736 }
1737 
1738 void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
1739   if (Canonical)
1740     NNS = Context.getCanonicalNestedNameSpecifier(NNS);
1741   ID.AddPointer(NNS);
1742 }
1743 
1744 void StmtProfiler::VisitTemplateName(TemplateName Name) {
1745   if (Canonical)
1746     Name = Context.getCanonicalTemplateName(Name);
1747 
1748   Name.Profile(ID);
1749 }
1750 
1751 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
1752                                           unsigned NumArgs) {
1753   ID.AddInteger(NumArgs);
1754   for (unsigned I = 0; I != NumArgs; ++I)
1755     VisitTemplateArgument(Args[I].getArgument());
1756 }
1757 
1758 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
1759   // Mostly repetitive with TemplateArgument::Profile!
1760   ID.AddInteger(Arg.getKind());
1761   switch (Arg.getKind()) {
1762   case TemplateArgument::Null:
1763     break;
1764 
1765   case TemplateArgument::Type:
1766     VisitType(Arg.getAsType());
1767     break;
1768 
1769   case TemplateArgument::Template:
1770   case TemplateArgument::TemplateExpansion:
1771     VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
1772     break;
1773 
1774   case TemplateArgument::Declaration:
1775     VisitDecl(Arg.getAsDecl());
1776     break;
1777 
1778   case TemplateArgument::NullPtr:
1779     VisitType(Arg.getNullPtrType());
1780     break;
1781 
1782   case TemplateArgument::Integral:
1783     Arg.getAsIntegral().Profile(ID);
1784     VisitType(Arg.getIntegralType());
1785     break;
1786 
1787   case TemplateArgument::Expression:
1788     Visit(Arg.getAsExpr());
1789     break;
1790 
1791   case TemplateArgument::Pack:
1792     for (const auto &P : Arg.pack_elements())
1793       VisitTemplateArgument(P);
1794     break;
1795   }
1796 }
1797 
1798 void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
1799                    bool Canonical) const {
1800   StmtProfiler Profiler(ID, Context, Canonical);
1801   Profiler.Visit(this);
1802 }
1803