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