StmtProfile.cpp revision dca1761c9b91d0a730ac6368425dc978e8481392 
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::VisitIfStmt(const IfStmt *S) {
113  VisitStmt(S);
114  VisitDecl(S->getConditionVariable());
115}
116
117void StmtProfiler::VisitSwitchStmt(const SwitchStmt *S) {
118  VisitStmt(S);
119  VisitDecl(S->getConditionVariable());
120}
121
122void StmtProfiler::VisitWhileStmt(const WhileStmt *S) {
123  VisitStmt(S);
124  VisitDecl(S->getConditionVariable());
125}
126
127void StmtProfiler::VisitDoStmt(const DoStmt *S) {
128  VisitStmt(S);
129}
130
131void StmtProfiler::VisitForStmt(const ForStmt *S) {
132  VisitStmt(S);
133}
134
135void StmtProfiler::VisitGotoStmt(const GotoStmt *S) {
136  VisitStmt(S);
137  VisitDecl(S->getLabel());
138}
139
140void StmtProfiler::VisitIndirectGotoStmt(const IndirectGotoStmt *S) {
141  VisitStmt(S);
142}
143
144void StmtProfiler::VisitContinueStmt(const ContinueStmt *S) {
145  VisitStmt(S);
146}
147
148void StmtProfiler::VisitBreakStmt(const BreakStmt *S) {
149  VisitStmt(S);
150}
151
152void StmtProfiler::VisitReturnStmt(const ReturnStmt *S) {
153  VisitStmt(S);
154}
155
156void StmtProfiler::VisitAsmStmt(const AsmStmt *S) {
157  VisitStmt(S);
158  ID.AddBoolean(S->isVolatile());
159  ID.AddBoolean(S->isSimple());
160  VisitStringLiteral(S->getAsmString());
161  ID.AddInteger(S->getNumOutputs());
162  for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
163    ID.AddString(S->getOutputName(I));
164    VisitStringLiteral(S->getOutputConstraintLiteral(I));
165  }
166  ID.AddInteger(S->getNumInputs());
167  for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
168    ID.AddString(S->getInputName(I));
169    VisitStringLiteral(S->getInputConstraintLiteral(I));
170  }
171  ID.AddInteger(S->getNumClobbers());
172  for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
173    VisitStringLiteral(S->getClobber(I));
174}
175
176void StmtProfiler::VisitCXXCatchStmt(const CXXCatchStmt *S) {
177  VisitStmt(S);
178  VisitType(S->getCaughtType());
179}
180
181void StmtProfiler::VisitCXXTryStmt(const CXXTryStmt *S) {
182  VisitStmt(S);
183}
184
185void StmtProfiler::VisitCXXForRangeStmt(const CXXForRangeStmt *S) {
186  VisitStmt(S);
187}
188
189void StmtProfiler::VisitMSDependentExistsStmt(const MSDependentExistsStmt *S) {
190  VisitStmt(S);
191  ID.AddBoolean(S->isIfExists());
192  VisitNestedNameSpecifier(S->getQualifierLoc().getNestedNameSpecifier());
193  VisitName(S->getNameInfo().getName());
194}
195
196void StmtProfiler::VisitSEHTryStmt(const SEHTryStmt *S) {
197  VisitStmt(S);
198}
199
200void StmtProfiler::VisitSEHFinallyStmt(const SEHFinallyStmt *S) {
201  VisitStmt(S);
202}
203
204void StmtProfiler::VisitSEHExceptStmt(const SEHExceptStmt *S) {
205  VisitStmt(S);
206}
207
208void StmtProfiler::VisitObjCForCollectionStmt(const ObjCForCollectionStmt *S) {
209  VisitStmt(S);
210}
211
212void StmtProfiler::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *S) {
213  VisitStmt(S);
214  ID.AddBoolean(S->hasEllipsis());
215  if (S->getCatchParamDecl())
216    VisitType(S->getCatchParamDecl()->getType());
217}
218
219void StmtProfiler::VisitObjCAtFinallyStmt(const ObjCAtFinallyStmt *S) {
220  VisitStmt(S);
221}
222
223void StmtProfiler::VisitObjCAtTryStmt(const ObjCAtTryStmt *S) {
224  VisitStmt(S);
225}
226
227void
228StmtProfiler::VisitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt *S) {
229  VisitStmt(S);
230}
231
232void StmtProfiler::VisitObjCAtThrowStmt(const ObjCAtThrowStmt *S) {
233  VisitStmt(S);
234}
235
236void
237StmtProfiler::VisitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt *S) {
238  VisitStmt(S);
239}
240
241void StmtProfiler::VisitExpr(const Expr *S) {
242  VisitStmt(S);
243}
244
245void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
246  VisitExpr(S);
247  if (!Canonical)
248    VisitNestedNameSpecifier(S->getQualifier());
249  VisitDecl(S->getDecl());
250  if (!Canonical)
251    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
252}
253
254void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
255  VisitExpr(S);
256  ID.AddInteger(S->getIdentType());
257}
258
259void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
260  VisitExpr(S);
261  S->getValue().Profile(ID);
262}
263
264void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
265  VisitExpr(S);
266  ID.AddInteger(S->getKind());
267  ID.AddInteger(S->getValue());
268}
269
270void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
271  VisitExpr(S);
272  S->getValue().Profile(ID);
273  ID.AddBoolean(S->isExact());
274}
275
276void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
277  VisitExpr(S);
278}
279
280void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
281  VisitExpr(S);
282  ID.AddString(S->getBytes());
283  ID.AddInteger(S->getKind());
284}
285
286void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
287  VisitExpr(S);
288}
289
290void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
291  VisitExpr(S);
292}
293
294void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
295  VisitExpr(S);
296  ID.AddInteger(S->getOpcode());
297}
298
299void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
300  VisitType(S->getTypeSourceInfo()->getType());
301  unsigned n = S->getNumComponents();
302  for (unsigned i = 0; i < n; ++i) {
303    const OffsetOfExpr::OffsetOfNode& ON = S->getComponent(i);
304    ID.AddInteger(ON.getKind());
305    switch (ON.getKind()) {
306    case OffsetOfExpr::OffsetOfNode::Array:
307      // Expressions handled below.
308      break;
309
310    case OffsetOfExpr::OffsetOfNode::Field:
311      VisitDecl(ON.getField());
312      break;
313
314    case OffsetOfExpr::OffsetOfNode::Identifier:
315      ID.AddPointer(ON.getFieldName());
316      break;
317
318    case OffsetOfExpr::OffsetOfNode::Base:
319      // These nodes are implicit, and therefore don't need profiling.
320      break;
321    }
322  }
323
324  VisitExpr(S);
325}
326
327void
328StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
329  VisitExpr(S);
330  ID.AddInteger(S->getKind());
331  if (S->isArgumentType())
332    VisitType(S->getArgumentType());
333}
334
335void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
336  VisitExpr(S);
337}
338
339void StmtProfiler::VisitCallExpr(const CallExpr *S) {
340  VisitExpr(S);
341}
342
343void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
344  VisitExpr(S);
345  VisitDecl(S->getMemberDecl());
346  if (!Canonical)
347    VisitNestedNameSpecifier(S->getQualifier());
348  ID.AddBoolean(S->isArrow());
349}
350
351void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
352  VisitExpr(S);
353  ID.AddBoolean(S->isFileScope());
354}
355
356void StmtProfiler::VisitCastExpr(const CastExpr *S) {
357  VisitExpr(S);
358}
359
360void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
361  VisitCastExpr(S);
362  ID.AddInteger(S->getValueKind());
363}
364
365void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
366  VisitCastExpr(S);
367  VisitType(S->getTypeAsWritten());
368}
369
370void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
371  VisitExplicitCastExpr(S);
372}
373
374void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
375  VisitExpr(S);
376  ID.AddInteger(S->getOpcode());
377}
378
379void
380StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
381  VisitBinaryOperator(S);
382}
383
384void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
385  VisitExpr(S);
386}
387
388void StmtProfiler::VisitBinaryConditionalOperator(
389    const BinaryConditionalOperator *S) {
390  VisitExpr(S);
391}
392
393void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
394  VisitExpr(S);
395  VisitDecl(S->getLabel());
396}
397
398void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
399  VisitExpr(S);
400}
401
402void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
403  VisitExpr(S);
404}
405
406void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
407  VisitExpr(S);
408}
409
410void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
411  VisitExpr(S);
412}
413
414void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
415  VisitExpr(S);
416}
417
418void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
419  if (S->getSyntacticForm()) {
420    VisitInitListExpr(S->getSyntacticForm());
421    return;
422  }
423
424  VisitExpr(S);
425}
426
427void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
428  VisitExpr(S);
429  ID.AddBoolean(S->usesGNUSyntax());
430  for (DesignatedInitExpr::const_designators_iterator D =
431         S->designators_begin(), DEnd = S->designators_end();
432       D != DEnd; ++D) {
433    if (D->isFieldDesignator()) {
434      ID.AddInteger(0);
435      VisitName(D->getFieldName());
436      continue;
437    }
438
439    if (D->isArrayDesignator()) {
440      ID.AddInteger(1);
441    } else {
442      assert(D->isArrayRangeDesignator());
443      ID.AddInteger(2);
444    }
445    ID.AddInteger(D->getFirstExprIndex());
446  }
447}
448
449void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
450  VisitExpr(S);
451}
452
453void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
454  VisitExpr(S);
455  VisitName(&S->getAccessor());
456}
457
458void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
459  VisitExpr(S);
460  VisitDecl(S->getBlockDecl());
461}
462
463void StmtProfiler::VisitBlockDeclRefExpr(const BlockDeclRefExpr *S) {
464  VisitExpr(S);
465  VisitDecl(S->getDecl());
466  ID.AddBoolean(S->isByRef());
467  ID.AddBoolean(S->isConstQualAdded());
468}
469
470void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
471  VisitExpr(S);
472  for (unsigned i = 0; i != S->getNumAssocs(); ++i) {
473    QualType T = S->getAssocType(i);
474    if (T.isNull())
475      ID.AddPointer(0);
476    else
477      VisitType(T);
478    VisitExpr(S->getAssocExpr(i));
479  }
480}
481
482void StmtProfiler::VisitPseudoObjectExpr(const PseudoObjectExpr *S) {
483  VisitExpr(S);
484  for (PseudoObjectExpr::const_semantics_iterator
485         i = S->semantics_begin(), e = S->semantics_end(); i != e; ++i)
486    // Normally, we would not profile the source expressions of OVEs.
487    if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(*i))
488      Visit(OVE->getSourceExpr());
489}
490
491void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
492  VisitExpr(S);
493  ID.AddInteger(S->getOp());
494}
495
496static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
497                                          UnaryOperatorKind &UnaryOp,
498                                          BinaryOperatorKind &BinaryOp) {
499  switch (S->getOperator()) {
500  case OO_None:
501  case OO_New:
502  case OO_Delete:
503  case OO_Array_New:
504  case OO_Array_Delete:
505  case OO_Arrow:
506  case OO_Call:
507  case OO_Conditional:
508  case NUM_OVERLOADED_OPERATORS:
509    llvm_unreachable("Invalid operator call kind");
510
511  case OO_Plus:
512    if (S->getNumArgs() == 1) {
513      UnaryOp = UO_Plus;
514      return Stmt::UnaryOperatorClass;
515    }
516
517    BinaryOp = BO_Add;
518    return Stmt::BinaryOperatorClass;
519
520  case OO_Minus:
521    if (S->getNumArgs() == 1) {
522      UnaryOp = UO_Minus;
523      return Stmt::UnaryOperatorClass;
524    }
525
526    BinaryOp = BO_Sub;
527    return Stmt::BinaryOperatorClass;
528
529  case OO_Star:
530    if (S->getNumArgs() == 1) {
531      UnaryOp = UO_Minus;
532      return Stmt::UnaryOperatorClass;
533    }
534
535    BinaryOp = BO_Sub;
536    return Stmt::BinaryOperatorClass;
537
538  case OO_Slash:
539    BinaryOp = BO_Div;
540    return Stmt::BinaryOperatorClass;
541
542  case OO_Percent:
543    BinaryOp = BO_Rem;
544    return Stmt::BinaryOperatorClass;
545
546  case OO_Caret:
547    BinaryOp = BO_Xor;
548    return Stmt::BinaryOperatorClass;
549
550  case OO_Amp:
551    if (S->getNumArgs() == 1) {
552      UnaryOp = UO_AddrOf;
553      return Stmt::UnaryOperatorClass;
554    }
555
556    BinaryOp = BO_And;
557    return Stmt::BinaryOperatorClass;
558
559  case OO_Pipe:
560    BinaryOp = BO_Or;
561    return Stmt::BinaryOperatorClass;
562
563  case OO_Tilde:
564    UnaryOp = UO_Not;
565    return Stmt::UnaryOperatorClass;
566
567  case OO_Exclaim:
568    UnaryOp = UO_LNot;
569    return Stmt::UnaryOperatorClass;
570
571  case OO_Equal:
572    BinaryOp = BO_Assign;
573    return Stmt::BinaryOperatorClass;
574
575  case OO_Less:
576    BinaryOp = BO_LT;
577    return Stmt::BinaryOperatorClass;
578
579  case OO_Greater:
580    BinaryOp = BO_GT;
581    return Stmt::BinaryOperatorClass;
582
583  case OO_PlusEqual:
584    BinaryOp = BO_AddAssign;
585    return Stmt::CompoundAssignOperatorClass;
586
587  case OO_MinusEqual:
588    BinaryOp = BO_SubAssign;
589    return Stmt::CompoundAssignOperatorClass;
590
591  case OO_StarEqual:
592    BinaryOp = BO_MulAssign;
593    return Stmt::CompoundAssignOperatorClass;
594
595  case OO_SlashEqual:
596    BinaryOp = BO_DivAssign;
597    return Stmt::CompoundAssignOperatorClass;
598
599  case OO_PercentEqual:
600    BinaryOp = BO_RemAssign;
601    return Stmt::CompoundAssignOperatorClass;
602
603  case OO_CaretEqual:
604    BinaryOp = BO_XorAssign;
605    return Stmt::CompoundAssignOperatorClass;
606
607  case OO_AmpEqual:
608    BinaryOp = BO_AndAssign;
609    return Stmt::CompoundAssignOperatorClass;
610
611  case OO_PipeEqual:
612    BinaryOp = BO_OrAssign;
613    return Stmt::CompoundAssignOperatorClass;
614
615  case OO_LessLess:
616    BinaryOp = BO_Shl;
617    return Stmt::BinaryOperatorClass;
618
619  case OO_GreaterGreater:
620    BinaryOp = BO_Shr;
621    return Stmt::BinaryOperatorClass;
622
623  case OO_LessLessEqual:
624    BinaryOp = BO_ShlAssign;
625    return Stmt::CompoundAssignOperatorClass;
626
627  case OO_GreaterGreaterEqual:
628    BinaryOp = BO_ShrAssign;
629    return Stmt::CompoundAssignOperatorClass;
630
631  case OO_EqualEqual:
632    BinaryOp = BO_EQ;
633    return Stmt::BinaryOperatorClass;
634
635  case OO_ExclaimEqual:
636    BinaryOp = BO_NE;
637    return Stmt::BinaryOperatorClass;
638
639  case OO_LessEqual:
640    BinaryOp = BO_LE;
641    return Stmt::BinaryOperatorClass;
642
643  case OO_GreaterEqual:
644    BinaryOp = BO_GE;
645    return Stmt::BinaryOperatorClass;
646
647  case OO_AmpAmp:
648    BinaryOp = BO_LAnd;
649    return Stmt::BinaryOperatorClass;
650
651  case OO_PipePipe:
652    BinaryOp = BO_LOr;
653    return Stmt::BinaryOperatorClass;
654
655  case OO_PlusPlus:
656    UnaryOp = S->getNumArgs() == 1? UO_PreInc
657                                  : UO_PostInc;
658    return Stmt::UnaryOperatorClass;
659
660  case OO_MinusMinus:
661    UnaryOp = S->getNumArgs() == 1? UO_PreDec
662                                  : UO_PostDec;
663    return Stmt::UnaryOperatorClass;
664
665  case OO_Comma:
666    BinaryOp = BO_Comma;
667    return Stmt::BinaryOperatorClass;
668
669
670  case OO_ArrowStar:
671    BinaryOp = BO_PtrMemI;
672    return Stmt::BinaryOperatorClass;
673
674  case OO_Subscript:
675    return Stmt::ArraySubscriptExprClass;
676  }
677
678  llvm_unreachable("Invalid overloaded operator expression");
679}
680
681
682void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
683  if (S->isTypeDependent()) {
684    // Type-dependent operator calls are profiled like their underlying
685    // syntactic operator.
686    UnaryOperatorKind UnaryOp = UO_Extension;
687    BinaryOperatorKind BinaryOp = BO_Comma;
688    Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
689
690    ID.AddInteger(SC);
691    for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
692      Visit(S->getArg(I));
693    if (SC == Stmt::UnaryOperatorClass)
694      ID.AddInteger(UnaryOp);
695    else if (SC == Stmt::BinaryOperatorClass ||
696             SC == Stmt::CompoundAssignOperatorClass)
697      ID.AddInteger(BinaryOp);
698    else
699      assert(SC == Stmt::ArraySubscriptExprClass);
700
701    return;
702  }
703
704  VisitCallExpr(S);
705  ID.AddInteger(S->getOperator());
706}
707
708void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
709  VisitCallExpr(S);
710}
711
712void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
713  VisitCallExpr(S);
714}
715
716void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
717  VisitExpr(S);
718}
719
720void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
721  VisitExplicitCastExpr(S);
722}
723
724void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
725  VisitCXXNamedCastExpr(S);
726}
727
728void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
729  VisitCXXNamedCastExpr(S);
730}
731
732void
733StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
734  VisitCXXNamedCastExpr(S);
735}
736
737void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
738  VisitCXXNamedCastExpr(S);
739}
740
741void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
742  VisitExpr(S);
743  ID.AddBoolean(S->getValue());
744}
745
746void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
747  VisitExpr(S);
748}
749
750void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
751  VisitExpr(S);
752  if (S->isTypeOperand())
753    VisitType(S->getTypeOperand());
754}
755
756void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
757  VisitExpr(S);
758  if (S->isTypeOperand())
759    VisitType(S->getTypeOperand());
760}
761
762void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
763  VisitExpr(S);
764}
765
766void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
767  VisitExpr(S);
768}
769
770void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
771  VisitExpr(S);
772  VisitDecl(S->getParam());
773}
774
775void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
776  VisitExpr(S);
777  VisitDecl(
778         const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
779}
780
781void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
782  VisitExpr(S);
783  VisitDecl(S->getConstructor());
784  ID.AddBoolean(S->isElidable());
785}
786
787void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
788  VisitExplicitCastExpr(S);
789}
790
791void
792StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
793  VisitCXXConstructExpr(S);
794}
795
796void
797StmtProfiler::VisitLambdaExpr(const LambdaExpr *S) {
798  VisitExpr(S);
799  for (LambdaExpr::capture_iterator C = S->explicit_capture_begin(),
800                                 CEnd = S->explicit_capture_end();
801       C != CEnd; ++C) {
802    ID.AddInteger(C->getCaptureKind());
803    if (C->capturesVariable()) {
804      VisitDecl(C->getCapturedVar());
805      ID.AddBoolean(C->isPackExpansion());
806    }
807  }
808  // Note: If we actually needed to be able to match lambda
809  // expressions, we would have to consider parameters and return type
810  // here, among other things.
811  VisitStmt(S->getBody());
812}
813
814void
815StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
816  VisitExpr(S);
817}
818
819void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
820  VisitExpr(S);
821  ID.AddBoolean(S->isGlobalDelete());
822  ID.AddBoolean(S->isArrayForm());
823  VisitDecl(S->getOperatorDelete());
824}
825
826
827void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
828  VisitExpr(S);
829  VisitType(S->getAllocatedType());
830  VisitDecl(S->getOperatorNew());
831  VisitDecl(S->getOperatorDelete());
832  ID.AddBoolean(S->isArray());
833  ID.AddInteger(S->getNumPlacementArgs());
834  ID.AddBoolean(S->isGlobalNew());
835  ID.AddBoolean(S->isParenTypeId());
836  ID.AddInteger(S->getInitializationStyle());
837}
838
839void
840StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
841  VisitExpr(S);
842  ID.AddBoolean(S->isArrow());
843  VisitNestedNameSpecifier(S->getQualifier());
844  VisitType(S->getDestroyedType());
845}
846
847void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
848  VisitExpr(S);
849  VisitNestedNameSpecifier(S->getQualifier());
850  VisitName(S->getName());
851  ID.AddBoolean(S->hasExplicitTemplateArgs());
852  if (S->hasExplicitTemplateArgs())
853    VisitTemplateArguments(S->getExplicitTemplateArgs().getTemplateArgs(),
854                           S->getExplicitTemplateArgs().NumTemplateArgs);
855}
856
857void
858StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
859  VisitOverloadExpr(S);
860}
861
862void StmtProfiler::VisitUnaryTypeTraitExpr(const UnaryTypeTraitExpr *S) {
863  VisitExpr(S);
864  ID.AddInteger(S->getTrait());
865  VisitType(S->getQueriedType());
866}
867
868void StmtProfiler::VisitBinaryTypeTraitExpr(const BinaryTypeTraitExpr *S) {
869  VisitExpr(S);
870  ID.AddInteger(S->getTrait());
871  VisitType(S->getLhsType());
872  VisitType(S->getRhsType());
873}
874
875void StmtProfiler::VisitTypeTraitExpr(const TypeTraitExpr *S) {
876  VisitExpr(S);
877  ID.AddInteger(S->getTrait());
878  ID.AddInteger(S->getNumArgs());
879  for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
880    VisitType(S->getArg(I)->getType());
881}
882
883void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
884  VisitExpr(S);
885  ID.AddInteger(S->getTrait());
886  VisitType(S->getQueriedType());
887}
888
889void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
890  VisitExpr(S);
891  ID.AddInteger(S->getTrait());
892  VisitExpr(S->getQueriedExpression());
893}
894
895void StmtProfiler::VisitDependentScopeDeclRefExpr(
896    const DependentScopeDeclRefExpr *S) {
897  VisitExpr(S);
898  VisitName(S->getDeclName());
899  VisitNestedNameSpecifier(S->getQualifier());
900  ID.AddBoolean(S->hasExplicitTemplateArgs());
901  if (S->hasExplicitTemplateArgs())
902    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
903}
904
905void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
906  VisitExpr(S);
907}
908
909void StmtProfiler::VisitCXXUnresolvedConstructExpr(
910    const CXXUnresolvedConstructExpr *S) {
911  VisitExpr(S);
912  VisitType(S->getTypeAsWritten());
913}
914
915void StmtProfiler::VisitCXXDependentScopeMemberExpr(
916    const CXXDependentScopeMemberExpr *S) {
917  ID.AddBoolean(S->isImplicitAccess());
918  if (!S->isImplicitAccess()) {
919    VisitExpr(S);
920    ID.AddBoolean(S->isArrow());
921  }
922  VisitNestedNameSpecifier(S->getQualifier());
923  VisitName(S->getMember());
924  ID.AddBoolean(S->hasExplicitTemplateArgs());
925  if (S->hasExplicitTemplateArgs())
926    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
927}
928
929void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
930  ID.AddBoolean(S->isImplicitAccess());
931  if (!S->isImplicitAccess()) {
932    VisitExpr(S);
933    ID.AddBoolean(S->isArrow());
934  }
935  VisitNestedNameSpecifier(S->getQualifier());
936  VisitName(S->getMemberName());
937  ID.AddBoolean(S->hasExplicitTemplateArgs());
938  if (S->hasExplicitTemplateArgs())
939    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
940}
941
942void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
943  VisitExpr(S);
944}
945
946void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
947  VisitExpr(S);
948}
949
950void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
951  VisitExpr(S);
952  VisitDecl(S->getPack());
953}
954
955void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
956    const SubstNonTypeTemplateParmPackExpr *S) {
957  VisitExpr(S);
958  VisitDecl(S->getParameterPack());
959  VisitTemplateArgument(S->getArgumentPack());
960}
961
962void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
963    const SubstNonTypeTemplateParmExpr *E) {
964  // Profile exactly as the replacement expression.
965  Visit(E->getReplacement());
966}
967
968void StmtProfiler::VisitMaterializeTemporaryExpr(
969                                           const MaterializeTemporaryExpr *S) {
970  VisitExpr(S);
971}
972
973void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
974  VisitExpr(E);
975}
976
977void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
978  VisitExpr(S);
979}
980
981void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
982  VisitExpr(S);
983  VisitType(S->getEncodedType());
984}
985
986void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
987  VisitExpr(S);
988  VisitName(S->getSelector());
989}
990
991void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
992  VisitExpr(S);
993  VisitDecl(S->getProtocol());
994}
995
996void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
997  VisitExpr(S);
998  VisitDecl(S->getDecl());
999  ID.AddBoolean(S->isArrow());
1000  ID.AddBoolean(S->isFreeIvar());
1001}
1002
1003void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
1004  VisitExpr(S);
1005  if (S->isImplicitProperty()) {
1006    VisitDecl(S->getImplicitPropertyGetter());
1007    VisitDecl(S->getImplicitPropertySetter());
1008  } else {
1009    VisitDecl(S->getExplicitProperty());
1010  }
1011  if (S->isSuperReceiver()) {
1012    ID.AddBoolean(S->isSuperReceiver());
1013    VisitType(S->getSuperReceiverType());
1014  }
1015}
1016
1017void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
1018  VisitExpr(S);
1019  VisitName(S->getSelector());
1020  VisitDecl(S->getMethodDecl());
1021}
1022
1023void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
1024  VisitExpr(S);
1025  ID.AddBoolean(S->isArrow());
1026}
1027
1028void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
1029    const ObjCIndirectCopyRestoreExpr *S) {
1030  VisitExpr(S);
1031  ID.AddBoolean(S->shouldCopy());
1032}
1033
1034void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
1035  VisitExplicitCastExpr(S);
1036  ID.AddBoolean(S->getBridgeKind());
1037}
1038
1039void StmtProfiler::VisitDecl(const Decl *D) {
1040  ID.AddInteger(D? D->getKind() : 0);
1041
1042  if (Canonical && D) {
1043    if (const NonTypeTemplateParmDecl *NTTP =
1044          dyn_cast<NonTypeTemplateParmDecl>(D)) {
1045      ID.AddInteger(NTTP->getDepth());
1046      ID.AddInteger(NTTP->getIndex());
1047      ID.AddBoolean(NTTP->isParameterPack());
1048      VisitType(NTTP->getType());
1049      return;
1050    }
1051
1052    if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
1053      // The Itanium C++ ABI uses the type, scope depth, and scope
1054      // index of a parameter when mangling expressions that involve
1055      // function parameters, so we will use the parameter's type for
1056      // establishing function parameter identity. That way, our
1057      // definition of "equivalent" (per C++ [temp.over.link]) is at
1058      // least as strong as the definition of "equivalent" used for
1059      // name mangling.
1060      VisitType(Parm->getType());
1061      ID.AddInteger(Parm->getFunctionScopeDepth());
1062      ID.AddInteger(Parm->getFunctionScopeIndex());
1063      return;
1064    }
1065
1066    if (const TemplateTemplateParmDecl *TTP =
1067          dyn_cast<TemplateTemplateParmDecl>(D)) {
1068      ID.AddInteger(TTP->getDepth());
1069      ID.AddInteger(TTP->getIndex());
1070      ID.AddBoolean(TTP->isParameterPack());
1071      return;
1072    }
1073  }
1074
1075  ID.AddPointer(D? D->getCanonicalDecl() : 0);
1076}
1077
1078void StmtProfiler::VisitType(QualType T) {
1079  if (Canonical)
1080    T = Context.getCanonicalType(T);
1081
1082  ID.AddPointer(T.getAsOpaquePtr());
1083}
1084
1085void StmtProfiler::VisitName(DeclarationName Name) {
1086  ID.AddPointer(Name.getAsOpaquePtr());
1087}
1088
1089void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
1090  if (Canonical)
1091    NNS = Context.getCanonicalNestedNameSpecifier(NNS);
1092  ID.AddPointer(NNS);
1093}
1094
1095void StmtProfiler::VisitTemplateName(TemplateName Name) {
1096  if (Canonical)
1097    Name = Context.getCanonicalTemplateName(Name);
1098
1099  Name.Profile(ID);
1100}
1101
1102void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
1103                                          unsigned NumArgs) {
1104  ID.AddInteger(NumArgs);
1105  for (unsigned I = 0; I != NumArgs; ++I)
1106    VisitTemplateArgument(Args[I].getArgument());
1107}
1108
1109void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
1110  // Mostly repetitive with TemplateArgument::Profile!
1111  ID.AddInteger(Arg.getKind());
1112  switch (Arg.getKind()) {
1113  case TemplateArgument::Null:
1114    break;
1115
1116  case TemplateArgument::Type:
1117    VisitType(Arg.getAsType());
1118    break;
1119
1120  case TemplateArgument::Template:
1121  case TemplateArgument::TemplateExpansion:
1122    VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
1123    break;
1124
1125  case TemplateArgument::Declaration:
1126    VisitDecl(Arg.getAsDecl());
1127    break;
1128
1129  case TemplateArgument::Integral:
1130    Arg.getAsIntegral()->Profile(ID);
1131    VisitType(Arg.getIntegralType());
1132    break;
1133
1134  case TemplateArgument::Expression:
1135    Visit(Arg.getAsExpr());
1136    break;
1137
1138  case TemplateArgument::Pack:
1139    const TemplateArgument *Pack = Arg.pack_begin();
1140    for (unsigned i = 0, e = Arg.pack_size(); i != e; ++i)
1141      VisitTemplateArgument(Pack[i]);
1142    break;
1143  }
1144}
1145
1146void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
1147                   bool Canonical) const {
1148  StmtProfiler Profiler(ID, Context, Canonical);
1149  Profiler.Visit(this);
1150}
1151