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