StmtProfile.cpp revision 855243789cb44799c03f4c7216d3d6308805f549 
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/StmtVisitor.h"
22#include "llvm/ADT/FoldingSet.h"
23using namespace clang;
24
25namespace {
26  class StmtProfiler : public ConstStmtVisitor<StmtProfiler> {
27    llvm::FoldingSetNodeID &ID;
28    const ASTContext &Context;
29    bool Canonical;
30
31  public:
32    StmtProfiler(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
33                 bool Canonical)
34      : ID(ID), Context(Context), Canonical(Canonical) { }
35
36    void VisitStmt(const Stmt *S);
37
38#define STMT(Node, Base) void Visit##Node(const Node *S);
39#include "clang/AST/StmtNodes.inc"
40
41    /// \brief Visit a declaration that is referenced within an expression
42    /// or statement.
43    void VisitDecl(const Decl *D);
44
45    /// \brief Visit a type that is referenced within an expression or
46    /// statement.
47    void VisitType(QualType T);
48
49    /// \brief Visit a name that occurs within an expression or statement.
50    void VisitName(DeclarationName Name);
51
52    /// \brief Visit a nested-name-specifier that occurs within an expression
53    /// or statement.
54    void VisitNestedNameSpecifier(NestedNameSpecifier *NNS);
55
56    /// \brief Visit a template name that occurs within an expression or
57    /// statement.
58    void VisitTemplateName(TemplateName Name);
59
60    /// \brief Visit template arguments that occur within an expression or
61    /// statement.
62    void VisitTemplateArguments(const TemplateArgumentLoc *Args,
63                                unsigned NumArgs);
64
65    /// \brief Visit a single template argument.
66    void VisitTemplateArgument(const TemplateArgument &Arg);
67  };
68}
69
70void StmtProfiler::VisitStmt(const Stmt *S) {
71  ID.AddInteger(S->getStmtClass());
72  for (Stmt::const_child_range C = S->children(); C; ++C) {
73    if (*C)
74      Visit(*C);
75    else
76      ID.AddInteger(0);
77  }
78}
79
80void StmtProfiler::VisitDeclStmt(const DeclStmt *S) {
81  VisitStmt(S);
82  for (DeclStmt::const_decl_iterator D = S->decl_begin(), DEnd = S->decl_end();
83       D != DEnd; ++D)
84    VisitDecl(*D);
85}
86
87void StmtProfiler::VisitNullStmt(const NullStmt *S) {
88  VisitStmt(S);
89}
90
91void StmtProfiler::VisitCompoundStmt(const CompoundStmt *S) {
92  VisitStmt(S);
93}
94
95void StmtProfiler::VisitSwitchCase(const SwitchCase *S) {
96  VisitStmt(S);
97}
98
99void StmtProfiler::VisitCaseStmt(const CaseStmt *S) {
100  VisitStmt(S);
101}
102
103void StmtProfiler::VisitDefaultStmt(const DefaultStmt *S) {
104  VisitStmt(S);
105}
106
107void StmtProfiler::VisitLabelStmt(const LabelStmt *S) {
108  VisitStmt(S);
109  VisitDecl(S->getDecl());
110}
111
112void StmtProfiler::VisitAttributedStmt(const AttributedStmt *S) {
113  VisitStmt(S);
114  // TODO: maybe visit attributes?
115}
116
117void StmtProfiler::VisitIfStmt(const IfStmt *S) {
118  VisitStmt(S);
119  VisitDecl(S->getConditionVariable());
120}
121
122void StmtProfiler::VisitSwitchStmt(const SwitchStmt *S) {
123  VisitStmt(S);
124  VisitDecl(S->getConditionVariable());
125}
126
127void StmtProfiler::VisitWhileStmt(const WhileStmt *S) {
128  VisitStmt(S);
129  VisitDecl(S->getConditionVariable());
130}
131
132void StmtProfiler::VisitDoStmt(const DoStmt *S) {
133  VisitStmt(S);
134}
135
136void StmtProfiler::VisitForStmt(const ForStmt *S) {
137  VisitStmt(S);
138}
139
140void StmtProfiler::VisitGotoStmt(const GotoStmt *S) {
141  VisitStmt(S);
142  VisitDecl(S->getLabel());
143}
144
145void StmtProfiler::VisitIndirectGotoStmt(const IndirectGotoStmt *S) {
146  VisitStmt(S);
147}
148
149void StmtProfiler::VisitContinueStmt(const ContinueStmt *S) {
150  VisitStmt(S);
151}
152
153void StmtProfiler::VisitBreakStmt(const BreakStmt *S) {
154  VisitStmt(S);
155}
156
157void StmtProfiler::VisitReturnStmt(const ReturnStmt *S) {
158  VisitStmt(S);
159}
160
161void StmtProfiler::VisitAsmStmt(const AsmStmt *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->getClobber(I));
179}
180
181void StmtProfiler::VisitCXXCatchStmt(const CXXCatchStmt *S) {
182  VisitStmt(S);
183  VisitType(S->getCaughtType());
184}
185
186void StmtProfiler::VisitCXXTryStmt(const CXXTryStmt *S) {
187  VisitStmt(S);
188}
189
190void StmtProfiler::VisitCXXForRangeStmt(const CXXForRangeStmt *S) {
191  VisitStmt(S);
192}
193
194void StmtProfiler::VisitMSDependentExistsStmt(const MSDependentExistsStmt *S) {
195  VisitStmt(S);
196  ID.AddBoolean(S->isIfExists());
197  VisitNestedNameSpecifier(S->getQualifierLoc().getNestedNameSpecifier());
198  VisitName(S->getNameInfo().getName());
199}
200
201void StmtProfiler::VisitSEHTryStmt(const SEHTryStmt *S) {
202  VisitStmt(S);
203}
204
205void StmtProfiler::VisitSEHFinallyStmt(const SEHFinallyStmt *S) {
206  VisitStmt(S);
207}
208
209void StmtProfiler::VisitSEHExceptStmt(const SEHExceptStmt *S) {
210  VisitStmt(S);
211}
212
213void StmtProfiler::VisitObjCForCollectionStmt(const ObjCForCollectionStmt *S) {
214  VisitStmt(S);
215}
216
217void StmtProfiler::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *S) {
218  VisitStmt(S);
219  ID.AddBoolean(S->hasEllipsis());
220  if (S->getCatchParamDecl())
221    VisitType(S->getCatchParamDecl()->getType());
222}
223
224void StmtProfiler::VisitObjCAtFinallyStmt(const ObjCAtFinallyStmt *S) {
225  VisitStmt(S);
226}
227
228void StmtProfiler::VisitObjCAtTryStmt(const ObjCAtTryStmt *S) {
229  VisitStmt(S);
230}
231
232void
233StmtProfiler::VisitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt *S) {
234  VisitStmt(S);
235}
236
237void StmtProfiler::VisitObjCAtThrowStmt(const ObjCAtThrowStmt *S) {
238  VisitStmt(S);
239}
240
241void
242StmtProfiler::VisitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt *S) {
243  VisitStmt(S);
244}
245
246void StmtProfiler::VisitExpr(const Expr *S) {
247  VisitStmt(S);
248}
249
250void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
251  VisitExpr(S);
252  if (!Canonical)
253    VisitNestedNameSpecifier(S->getQualifier());
254  VisitDecl(S->getDecl());
255  if (!Canonical)
256    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
257}
258
259void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
260  VisitExpr(S);
261  ID.AddInteger(S->getIdentType());
262}
263
264void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
265  VisitExpr(S);
266  S->getValue().Profile(ID);
267}
268
269void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
270  VisitExpr(S);
271  ID.AddInteger(S->getKind());
272  ID.AddInteger(S->getValue());
273}
274
275void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
276  VisitExpr(S);
277  S->getValue().Profile(ID);
278  ID.AddBoolean(S->isExact());
279}
280
281void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
282  VisitExpr(S);
283}
284
285void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
286  VisitExpr(S);
287  ID.AddString(S->getBytes());
288  ID.AddInteger(S->getKind());
289}
290
291void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
292  VisitExpr(S);
293}
294
295void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
296  VisitExpr(S);
297}
298
299void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
300  VisitExpr(S);
301  ID.AddInteger(S->getOpcode());
302}
303
304void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
305  VisitType(S->getTypeSourceInfo()->getType());
306  unsigned n = S->getNumComponents();
307  for (unsigned i = 0; i < n; ++i) {
308    const OffsetOfExpr::OffsetOfNode& ON = S->getComponent(i);
309    ID.AddInteger(ON.getKind());
310    switch (ON.getKind()) {
311    case OffsetOfExpr::OffsetOfNode::Array:
312      // Expressions handled below.
313      break;
314
315    case OffsetOfExpr::OffsetOfNode::Field:
316      VisitDecl(ON.getField());
317      break;
318
319    case OffsetOfExpr::OffsetOfNode::Identifier:
320      ID.AddPointer(ON.getFieldName());
321      break;
322
323    case OffsetOfExpr::OffsetOfNode::Base:
324      // These nodes are implicit, and therefore don't need profiling.
325      break;
326    }
327  }
328
329  VisitExpr(S);
330}
331
332void
333StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
334  VisitExpr(S);
335  ID.AddInteger(S->getKind());
336  if (S->isArgumentType())
337    VisitType(S->getArgumentType());
338}
339
340void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
341  VisitExpr(S);
342}
343
344void StmtProfiler::VisitCallExpr(const CallExpr *S) {
345  VisitExpr(S);
346}
347
348void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
349  VisitExpr(S);
350  VisitDecl(S->getMemberDecl());
351  if (!Canonical)
352    VisitNestedNameSpecifier(S->getQualifier());
353  ID.AddBoolean(S->isArrow());
354}
355
356void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
357  VisitExpr(S);
358  ID.AddBoolean(S->isFileScope());
359}
360
361void StmtProfiler::VisitCastExpr(const CastExpr *S) {
362  VisitExpr(S);
363}
364
365void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
366  VisitCastExpr(S);
367  ID.AddInteger(S->getValueKind());
368}
369
370void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
371  VisitCastExpr(S);
372  VisitType(S->getTypeAsWritten());
373}
374
375void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
376  VisitExplicitCastExpr(S);
377}
378
379void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
380  VisitExpr(S);
381  ID.AddInteger(S->getOpcode());
382}
383
384void
385StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
386  VisitBinaryOperator(S);
387}
388
389void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
390  VisitExpr(S);
391}
392
393void StmtProfiler::VisitBinaryConditionalOperator(
394    const BinaryConditionalOperator *S) {
395  VisitExpr(S);
396}
397
398void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
399  VisitExpr(S);
400  VisitDecl(S->getLabel());
401}
402
403void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
404  VisitExpr(S);
405}
406
407void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
408  VisitExpr(S);
409}
410
411void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
412  VisitExpr(S);
413}
414
415void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
416  VisitExpr(S);
417}
418
419void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
420  VisitExpr(S);
421}
422
423void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
424  if (S->getSyntacticForm()) {
425    VisitInitListExpr(S->getSyntacticForm());
426    return;
427  }
428
429  VisitExpr(S);
430}
431
432void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
433  VisitExpr(S);
434  ID.AddBoolean(S->usesGNUSyntax());
435  for (DesignatedInitExpr::const_designators_iterator D =
436         S->designators_begin(), DEnd = S->designators_end();
437       D != DEnd; ++D) {
438    if (D->isFieldDesignator()) {
439      ID.AddInteger(0);
440      VisitName(D->getFieldName());
441      continue;
442    }
443
444    if (D->isArrayDesignator()) {
445      ID.AddInteger(1);
446    } else {
447      assert(D->isArrayRangeDesignator());
448      ID.AddInteger(2);
449    }
450    ID.AddInteger(D->getFirstExprIndex());
451  }
452}
453
454void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
455  VisitExpr(S);
456}
457
458void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
459  VisitExpr(S);
460  VisitName(&S->getAccessor());
461}
462
463void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
464  VisitExpr(S);
465  VisitDecl(S->getBlockDecl());
466}
467
468void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
469  VisitExpr(S);
470  for (unsigned i = 0; i != S->getNumAssocs(); ++i) {
471    QualType T = S->getAssocType(i);
472    if (T.isNull())
473      ID.AddPointer(0);
474    else
475      VisitType(T);
476    VisitExpr(S->getAssocExpr(i));
477  }
478}
479
480void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
481  VisitExpr(S);
482  for (PseudoObjectExpr::const_semantics_iterator
483         i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
484    // Normally, we would not profile the source expressions of OVEs.
485    if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
486      Visit(OVE->getSourceExpr());
487}
488
489void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
490  VisitExpr(S);
491  ID.AddInteger(S->getOp());
492}
493
494static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
495                                          UnaryOperatorKind &UnaryOp,
496                                          BinaryOperatorKind &BinaryOp) {
497  switch (S->getOperator()) {
498  case OO_None:
499  case OO_New:
500  case OO_Delete:
501  case OO_Array_New:
502  case OO_Array_Delete:
503  case OO_Arrow:
504  case OO_Call:
505  case OO_Conditional:
506  case NUM_OVERLOADED_OPERATORS:
507    llvm_unreachable("Invalid operator call kind");
508
509  case OO_Plus:
510    if (S->getNumArgs() == 1) {
511      UnaryOp = UO_Plus;
512      return Stmt::UnaryOperatorClass;
513    }
514
515    BinaryOp = BO_Add;
516    return Stmt::BinaryOperatorClass;
517
518  case OO_Minus:
519    if (S->getNumArgs() == 1) {
520      UnaryOp = UO_Minus;
521      return Stmt::UnaryOperatorClass;
522    }
523
524    BinaryOp = BO_Sub;
525    return Stmt::BinaryOperatorClass;
526
527  case OO_Star:
528    if (S->getNumArgs() == 1) {
529      UnaryOp = UO_Minus;
530      return Stmt::UnaryOperatorClass;
531    }
532
533    BinaryOp = BO_Sub;
534    return Stmt::BinaryOperatorClass;
535
536  case OO_Slash:
537    BinaryOp = BO_Div;
538    return Stmt::BinaryOperatorClass;
539
540  case OO_Percent:
541    BinaryOp = BO_Rem;
542    return Stmt::BinaryOperatorClass;
543
544  case OO_Caret:
545    BinaryOp = BO_Xor;
546    return Stmt::BinaryOperatorClass;
547
548  case OO_Amp:
549    if (S->getNumArgs() == 1) {
550      UnaryOp = UO_AddrOf;
551      return Stmt::UnaryOperatorClass;
552    }
553
554    BinaryOp = BO_And;
555    return Stmt::BinaryOperatorClass;
556
557  case OO_Pipe:
558    BinaryOp = BO_Or;
559    return Stmt::BinaryOperatorClass;
560
561  case OO_Tilde:
562    UnaryOp = UO_Not;
563    return Stmt::UnaryOperatorClass;
564
565  case OO_Exclaim:
566    UnaryOp = UO_LNot;
567    return Stmt::UnaryOperatorClass;
568
569  case OO_Equal:
570    BinaryOp = BO_Assign;
571    return Stmt::BinaryOperatorClass;
572
573  case OO_Less:
574    BinaryOp = BO_LT;
575    return Stmt::BinaryOperatorClass;
576
577  case OO_Greater:
578    BinaryOp = BO_GT;
579    return Stmt::BinaryOperatorClass;
580
581  case OO_PlusEqual:
582    BinaryOp = BO_AddAssign;
583    return Stmt::CompoundAssignOperatorClass;
584
585  case OO_MinusEqual:
586    BinaryOp = BO_SubAssign;
587    return Stmt::CompoundAssignOperatorClass;
588
589  case OO_StarEqual:
590    BinaryOp = BO_MulAssign;
591    return Stmt::CompoundAssignOperatorClass;
592
593  case OO_SlashEqual:
594    BinaryOp = BO_DivAssign;
595    return Stmt::CompoundAssignOperatorClass;
596
597  case OO_PercentEqual:
598    BinaryOp = BO_RemAssign;
599    return Stmt::CompoundAssignOperatorClass;
600
601  case OO_CaretEqual:
602    BinaryOp = BO_XorAssign;
603    return Stmt::CompoundAssignOperatorClass;
604
605  case OO_AmpEqual:
606    BinaryOp = BO_AndAssign;
607    return Stmt::CompoundAssignOperatorClass;
608
609  case OO_PipeEqual:
610    BinaryOp = BO_OrAssign;
611    return Stmt::CompoundAssignOperatorClass;
612
613  case OO_LessLess:
614    BinaryOp = BO_Shl;
615    return Stmt::BinaryOperatorClass;
616
617  case OO_GreaterGreater:
618    BinaryOp = BO_Shr;
619    return Stmt::BinaryOperatorClass;
620
621  case OO_LessLessEqual:
622    BinaryOp = BO_ShlAssign;
623    return Stmt::CompoundAssignOperatorClass;
624
625  case OO_GreaterGreaterEqual:
626    BinaryOp = BO_ShrAssign;
627    return Stmt::CompoundAssignOperatorClass;
628
629  case OO_EqualEqual:
630    BinaryOp = BO_EQ;
631    return Stmt::BinaryOperatorClass;
632
633  case OO_ExclaimEqual:
634    BinaryOp = BO_NE;
635    return Stmt::BinaryOperatorClass;
636
637  case OO_LessEqual:
638    BinaryOp = BO_LE;
639    return Stmt::BinaryOperatorClass;
640
641  case OO_GreaterEqual:
642    BinaryOp = BO_GE;
643    return Stmt::BinaryOperatorClass;
644
645  case OO_AmpAmp:
646    BinaryOp = BO_LAnd;
647    return Stmt::BinaryOperatorClass;
648
649  case OO_PipePipe:
650    BinaryOp = BO_LOr;
651    return Stmt::BinaryOperatorClass;
652
653  case OO_PlusPlus:
654    UnaryOp = S->getNumArgs() == 1? UO_PreInc
655                                  : UO_PostInc;
656    return Stmt::UnaryOperatorClass;
657
658  case OO_MinusMinus:
659    UnaryOp = S->getNumArgs() == 1? UO_PreDec
660                                  : UO_PostDec;
661    return Stmt::UnaryOperatorClass;
662
663  case OO_Comma:
664    BinaryOp = BO_Comma;
665    return Stmt::BinaryOperatorClass;
666
667
668  case OO_ArrowStar:
669    BinaryOp = BO_PtrMemI;
670    return Stmt::BinaryOperatorClass;
671
672  case OO_Subscript:
673    return Stmt::ArraySubscriptExprClass;
674  }
675
676  llvm_unreachable("Invalid overloaded operator expression");
677}
678
679
680void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
681  if (S->isTypeDependent()) {
682    // Type-dependent operator calls are profiled like their underlying
683    // syntactic operator.
684    UnaryOperatorKind UnaryOp = UO_Extension;
685    BinaryOperatorKind BinaryOp = BO_Comma;
686    Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
687
688    ID.AddInteger(SC);
689    for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
690      Visit(S->getArg(I));
691    if (SC == Stmt::UnaryOperatorClass)
692      ID.AddInteger(UnaryOp);
693    else if (SC == Stmt::BinaryOperatorClass ||
694             SC == Stmt::CompoundAssignOperatorClass)
695      ID.AddInteger(BinaryOp);
696    else
697      assert(SC == Stmt::ArraySubscriptExprClass);
698
699    return;
700  }
701
702  VisitCallExpr(S);
703  ID.AddInteger(S->getOperator());
704}
705
706void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
707  VisitCallExpr(S);
708}
709
710void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
711  VisitCallExpr(S);
712}
713
714void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
715  VisitExpr(S);
716}
717
718void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
719  VisitExplicitCastExpr(S);
720}
721
722void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
723  VisitCXXNamedCastExpr(S);
724}
725
726void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
727  VisitCXXNamedCastExpr(S);
728}
729
730void
731StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
732  VisitCXXNamedCastExpr(S);
733}
734
735void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
736  VisitCXXNamedCastExpr(S);
737}
738
739void StmtProfiler::VisitUserDefinedLiteral(const UserDefinedLiteral *S) {
740  VisitCallExpr(S);
741}
742
743void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
744  VisitExpr(S);
745  ID.AddBoolean(S->getValue());
746}
747
748void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
749  VisitExpr(S);
750}
751
752void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
753  VisitExpr(S);
754  if (S->isTypeOperand())
755    VisitType(S->getTypeOperand());
756}
757
758void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
759  VisitExpr(S);
760  if (S->isTypeOperand())
761    VisitType(S->getTypeOperand());
762}
763
764void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
765  VisitExpr(S);
766  ID.AddBoolean(S->isImplicit());
767}
768
769void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
770  VisitExpr(S);
771}
772
773void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
774  VisitExpr(S);
775  VisitDecl(S->getParam());
776}
777
778void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
779  VisitExpr(S);
780  VisitDecl(
781         const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
782}
783
784void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
785  VisitExpr(S);
786  VisitDecl(S->getConstructor());
787  ID.AddBoolean(S->isElidable());
788}
789
790void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
791  VisitExplicitCastExpr(S);
792}
793
794void
795StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
796  VisitCXXConstructExpr(S);
797}
798
799void
800StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
801  VisitExpr(S);
802  for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
803                                 CEnd = S->explicit_capture_end();
804       C != CEnd; ++C) {
805    ID.AddInteger(C->getCaptureKind());
806    if (C->capturesVariable()) {
807      VisitDecl(C->getCapturedVar());
808      ID.AddBoolean(C->isPackExpansion());
809    }
810  }
811  // Note: If we actually needed to be able to match lambda
812  // expressions, we would have to consider parameters and return type
813  // here, among other things.
814  VisitStmt(S->getBody());
815}
816
817void
818StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
819  VisitExpr(S);
820}
821
822void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
823  VisitExpr(S);
824  ID.AddBoolean(S->isGlobalDelete());
825  ID.AddBoolean(S->isArrayForm());
826  VisitDecl(S->getOperatorDelete());
827}
828
829
830void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
831  VisitExpr(S);
832  VisitType(S->getAllocatedType());
833  VisitDecl(S->getOperatorNew());
834  VisitDecl(S->getOperatorDelete());
835  ID.AddBoolean(S->isArray());
836  ID.AddInteger(S->getNumPlacementArgs());
837  ID.AddBoolean(S->isGlobalNew());
838  ID.AddBoolean(S->isParenTypeId());
839  ID.AddInteger(S->getInitializationStyle());
840}
841
842void
843StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
844  VisitExpr(S);
845  ID.AddBoolean(S->isArrow());
846  VisitNestedNameSpecifier(S->getQualifier());
847  VisitType(S->getDestroyedType());
848}
849
850void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
851  VisitExpr(S);
852  VisitNestedNameSpecifier(S->getQualifier());
853  VisitName(S->getName());
854  ID.AddBoolean(S->hasExplicitTemplateArgs());
855  if (S->hasExplicitTemplateArgs())
856    VisitTemplateArguments(S->getExplicitTemplateArgs().getTemplateArgs(),
857                           S->getExplicitTemplateArgs().NumTemplateArgs);
858}
859
860void
861StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
862  VisitOverloadExpr(S);
863}
864
865void StmtProfiler::VisitUnaryTypeTraitExpr(const UnaryTypeTraitExpr *S) {
866  VisitExpr(S);
867  ID.AddInteger(S->getTrait());
868  VisitType(S->getQueriedType());
869}
870
871void StmtProfiler::VisitBinaryTypeTraitExpr(const BinaryTypeTraitExpr *S) {
872  VisitExpr(S);
873  ID.AddInteger(S->getTrait());
874  VisitType(S->getLhsType());
875  VisitType(S->getRhsType());
876}
877
878void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
879  VisitExpr(S);
880  ID.AddInteger(S->getTrait());
881  ID.AddInteger(S->getNumArgs());
882  for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
883    VisitType(S->getArg(I)->getType());
884}
885
886void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
887  VisitExpr(S);
888  ID.AddInteger(S->getTrait());
889  VisitType(S->getQueriedType());
890}
891
892void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
893  VisitExpr(S);
894  ID.AddInteger(S->getTrait());
895  VisitExpr(S->getQueriedExpression());
896}
897
898void StmtProfiler::VisitDependentScopeDeclRefExpr(
899    const DependentScopeDeclRefExpr *S) {
900  VisitExpr(S);
901  VisitName(S->getDeclName());
902  VisitNestedNameSpecifier(S->getQualifier());
903  ID.AddBoolean(S->hasExplicitTemplateArgs());
904  if (S->hasExplicitTemplateArgs())
905    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
906}
907
908void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
909  VisitExpr(S);
910}
911
912void StmtProfiler::VisitCXXUnresolvedConstructExpr(
913    const CXXUnresolvedConstructExpr *S) {
914  VisitExpr(S);
915  VisitType(S->getTypeAsWritten());
916}
917
918void StmtProfiler::VisitCXXDependentScopeMemberExpr(
919    const CXXDependentScopeMemberExpr *S) {
920  ID.AddBoolean(S->isImplicitAccess());
921  if (!S->isImplicitAccess()) {
922    VisitExpr(S);
923    ID.AddBoolean(S->isArrow());
924  }
925  VisitNestedNameSpecifier(S->getQualifier());
926  VisitName(S->getMember());
927  ID.AddBoolean(S->hasExplicitTemplateArgs());
928  if (S->hasExplicitTemplateArgs())
929    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
930}
931
932void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
933  ID.AddBoolean(S->isImplicitAccess());
934  if (!S->isImplicitAccess()) {
935    VisitExpr(S);
936    ID.AddBoolean(S->isArrow());
937  }
938  VisitNestedNameSpecifier(S->getQualifier());
939  VisitName(S->getMemberName());
940  ID.AddBoolean(S->hasExplicitTemplateArgs());
941  if (S->hasExplicitTemplateArgs())
942    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
943}
944
945void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
946  VisitExpr(S);
947}
948
949void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
950  VisitExpr(S);
951}
952
953void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
954  VisitExpr(S);
955  VisitDecl(S->getPack());
956}
957
958void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
959    const SubstNonTypeTemplateParmPackExpr *S) {
960  VisitExpr(S);
961  VisitDecl(S->getParameterPack());
962  VisitTemplateArgument(S->getArgumentPack());
963}
964
965void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
966    const SubstNonTypeTemplateParmExpr *E) {
967  // Profile exactly as the replacement expression.
968  Visit(E->getReplacement());
969}
970
971void StmtProfiler::VisitMaterializeTemporaryExpr(
972                                           const MaterializeTemporaryExpr *S) {
973  VisitExpr(S);
974}
975
976void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
977  VisitExpr(E);
978}
979
980void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
981  VisitExpr(S);
982}
983
984void StmtProfiler::VisitObjCBoxedExpr(const ObjCBoxedExpr *E) {
985  VisitExpr(E);
986}
987
988void StmtProfiler::VisitObjCArrayLiteral(const ObjCArrayLiteral *E) {
989  VisitExpr(E);
990}
991
992void StmtProfiler::VisitObjCDictionaryLiteral(const ObjCDictionaryLiteral *E) {
993  VisitExpr(E);
994}
995
996void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
997  VisitExpr(S);
998  VisitType(S->getEncodedType());
999}
1000
1001void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
1002  VisitExpr(S);
1003  VisitName(S->getSelector());
1004}
1005
1006void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
1007  VisitExpr(S);
1008  VisitDecl(S->getProtocol());
1009}
1010
1011void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
1012  VisitExpr(S);
1013  VisitDecl(S->getDecl());
1014  ID.AddBoolean(S->isArrow());
1015  ID.AddBoolean(S->isFreeIvar());
1016}
1017
1018void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
1019  VisitExpr(S);
1020  if (S->isImplicitProperty()) {
1021    VisitDecl(S->getImplicitPropertyGetter());
1022    VisitDecl(S->getImplicitPropertySetter());
1023  } else {
1024    VisitDecl(S->getExplicitProperty());
1025  }
1026  if (S->isSuperReceiver()) {
1027    ID.AddBoolean(S->isSuperReceiver());
1028    VisitType(S->getSuperReceiverType());
1029  }
1030}
1031
1032void StmtProfiler::VisitObjCSubscriptRefExpr(const ObjCSubscriptRefExpr *S) {
1033  VisitExpr(S);
1034  VisitDecl(S->getAtIndexMethodDecl());
1035  VisitDecl(S->setAtIndexMethodDecl());
1036}
1037
1038void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
1039  VisitExpr(S);
1040  VisitName(S->getSelector());
1041  VisitDecl(S->getMethodDecl());
1042}
1043
1044void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
1045  VisitExpr(S);
1046  ID.AddBoolean(S->isArrow());
1047}
1048
1049void StmtProfiler::VisitObjCBoolLiteralExpr(const ObjCBoolLiteralExpr *S) {
1050  VisitExpr(S);
1051  ID.AddBoolean(S->getValue());
1052}
1053
1054void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
1055    const ObjCIndirectCopyRestoreExpr *S) {
1056  VisitExpr(S);
1057  ID.AddBoolean(S->shouldCopy());
1058}
1059
1060void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
1061  VisitExplicitCastExpr(S);
1062  ID.AddBoolean(S->getBridgeKind());
1063}
1064
1065void StmtProfiler::VisitDecl(const Decl *D) {
1066  ID.AddInteger(D? D->getKind() : 0);
1067
1068  if (Canonical && D) {
1069    if (const NonTypeTemplateParmDecl *NTTP =
1070          dyn_cast<NonTypeTemplateParmDecl>(D)) {
1071      ID.AddInteger(NTTP->getDepth());
1072      ID.AddInteger(NTTP->getIndex());
1073      ID.AddBoolean(NTTP->isParameterPack());
1074      VisitType(NTTP->getType());
1075      return;
1076    }
1077
1078    if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
1079      // The Itanium C++ ABI uses the type, scope depth, and scope
1080      // index of a parameter when mangling expressions that involve
1081      // function parameters, so we will use the parameter's type for
1082      // establishing function parameter identity. That way, our
1083      // definition of "equivalent" (per C++ [temp.over.link]) is at
1084      // least as strong as the definition of "equivalent" used for
1085      // name mangling.
1086      VisitType(Parm->getType());
1087      ID.AddInteger(Parm->getFunctionScopeDepth());
1088      ID.AddInteger(Parm->getFunctionScopeIndex());
1089      return;
1090    }
1091
1092    if (const TemplateTypeParmDecl *TTP =
1093          dyn_cast<TemplateTypeParmDecl>(D)) {
1094      ID.AddInteger(TTP->getDepth());
1095      ID.AddInteger(TTP->getIndex());
1096      ID.AddBoolean(TTP->isParameterPack());
1097      return;
1098    }
1099
1100    if (const TemplateTemplateParmDecl *TTP =
1101          dyn_cast<TemplateTemplateParmDecl>(D)) {
1102      ID.AddInteger(TTP->getDepth());
1103      ID.AddInteger(TTP->getIndex());
1104      ID.AddBoolean(TTP->isParameterPack());
1105      return;
1106    }
1107  }
1108
1109  ID.AddPointer(D? D->getCanonicalDecl() : 0);
1110}
1111
1112void StmtProfiler::VisitType(QualType T) {
1113  if (Canonical)
1114    T = Context.getCanonicalType(T);
1115
1116  ID.AddPointer(T.getAsOpaquePtr());
1117}
1118
1119void StmtProfiler::VisitName(DeclarationName Name) {
1120  ID.AddPointer(Name.getAsOpaquePtr());
1121}
1122
1123void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
1124  if (Canonical)
1125    NNS = Context.getCanonicalNestedNameSpecifier(NNS);
1126  ID.AddPointer(NNS);
1127}
1128
1129void StmtProfiler::VisitTemplateName(TemplateName Name) {
1130  if (Canonical)
1131    Name = Context.getCanonicalTemplateName(Name);
1132
1133  Name.Profile(ID);
1134}
1135
1136void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
1137                                          unsigned NumArgs) {
1138  ID.AddInteger(NumArgs);
1139  for (unsigned I = 0; I != NumArgs; ++I)
1140    VisitTemplateArgument(Args[I].getArgument());
1141}
1142
1143void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
1144  // Mostly repetitive with TemplateArgument::Profile!
1145  ID.AddInteger(Arg.getKind());
1146  switch (Arg.getKind()) {
1147  case TemplateArgument::Null:
1148    break;
1149
1150  case TemplateArgument::Type:
1151    VisitType(Arg.getAsType());
1152    break;
1153
1154  case TemplateArgument::Template:
1155  case TemplateArgument::TemplateExpansion:
1156    VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
1157    break;
1158
1159  case TemplateArgument::Declaration:
1160    VisitDecl(Arg.getAsDecl());
1161    break;
1162
1163  case TemplateArgument::Integral:
1164    Arg.getAsIntegral().Profile(ID);
1165    VisitType(Arg.getIntegralType());
1166    break;
1167
1168  case TemplateArgument::Expression:
1169    Visit(Arg.getAsExpr());
1170    break;
1171
1172  case TemplateArgument::Pack:
1173    const TemplateArgument *Pack = Arg.pack_begin();
1174    for (unsigned i = 0, e = Arg.pack_size(); i != e; ++i)
1175      VisitTemplateArgument(Pack[i]);
1176    break;
1177  }
1178}
1179
1180void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
1181                   bool Canonical) const {
1182  StmtProfiler Profiler(ID, Context, Canonical);
1183  Profiler.Visit(this);
1184}
1185