StmtProfile.cpp revision 38738fcace68630bbbfe174c6a3698a4c94b3dc9 
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    Visit(*C);
74}
75
76void StmtProfiler::VisitDeclStmt(const DeclStmt *S) {
77  VisitStmt(S);
78  for (DeclStmt::const_decl_iterator D = S->decl_begin(), DEnd = S->decl_end();
79       D != DEnd; ++D)
80    VisitDecl(*D);
81}
82
83void StmtProfiler::VisitNullStmt(const NullStmt *S) {
84  VisitStmt(S);
85}
86
87void StmtProfiler::VisitCompoundStmt(const CompoundStmt *S) {
88  VisitStmt(S);
89}
90
91void StmtProfiler::VisitSwitchCase(const SwitchCase *S) {
92  VisitStmt(S);
93}
94
95void StmtProfiler::VisitCaseStmt(const CaseStmt *S) {
96  VisitStmt(S);
97}
98
99void StmtProfiler::VisitDefaultStmt(const DefaultStmt *S) {
100  VisitStmt(S);
101}
102
103void StmtProfiler::VisitLabelStmt(const LabelStmt *S) {
104  VisitStmt(S);
105  VisitDecl(S->getDecl());
106}
107
108void StmtProfiler::VisitIfStmt(const IfStmt *S) {
109  VisitStmt(S);
110  VisitDecl(S->getConditionVariable());
111}
112
113void StmtProfiler::VisitSwitchStmt(const SwitchStmt *S) {
114  VisitStmt(S);
115  VisitDecl(S->getConditionVariable());
116}
117
118void StmtProfiler::VisitWhileStmt(const WhileStmt *S) {
119  VisitStmt(S);
120  VisitDecl(S->getConditionVariable());
121}
122
123void StmtProfiler::VisitDoStmt(const DoStmt *S) {
124  VisitStmt(S);
125}
126
127void StmtProfiler::VisitForStmt(const ForStmt *S) {
128  VisitStmt(S);
129}
130
131void StmtProfiler::VisitGotoStmt(const GotoStmt *S) {
132  VisitStmt(S);
133  VisitDecl(S->getLabel());
134}
135
136void StmtProfiler::VisitIndirectGotoStmt(const IndirectGotoStmt *S) {
137  VisitStmt(S);
138}
139
140void StmtProfiler::VisitContinueStmt(const ContinueStmt *S) {
141  VisitStmt(S);
142}
143
144void StmtProfiler::VisitBreakStmt(const BreakStmt *S) {
145  VisitStmt(S);
146}
147
148void StmtProfiler::VisitReturnStmt(const ReturnStmt *S) {
149  VisitStmt(S);
150}
151
152void StmtProfiler::VisitAsmStmt(const AsmStmt *S) {
153  VisitStmt(S);
154  ID.AddBoolean(S->isVolatile());
155  ID.AddBoolean(S->isSimple());
156  VisitStringLiteral(S->getAsmString());
157  ID.AddInteger(S->getNumOutputs());
158  for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
159    ID.AddString(S->getOutputName(I));
160    VisitStringLiteral(S->getOutputConstraintLiteral(I));
161  }
162  ID.AddInteger(S->getNumInputs());
163  for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
164    ID.AddString(S->getInputName(I));
165    VisitStringLiteral(S->getInputConstraintLiteral(I));
166  }
167  ID.AddInteger(S->getNumClobbers());
168  for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
169    VisitStringLiteral(S->getClobber(I));
170}
171
172void StmtProfiler::VisitCXXCatchStmt(const CXXCatchStmt *S) {
173  VisitStmt(S);
174  VisitType(S->getCaughtType());
175}
176
177void StmtProfiler::VisitCXXTryStmt(const CXXTryStmt *S) {
178  VisitStmt(S);
179}
180
181void StmtProfiler::VisitCXXForRangeStmt(const CXXForRangeStmt *S) {
182  VisitStmt(S);
183}
184
185void StmtProfiler::VisitMSDependentExistsStmt(const MSDependentExistsStmt *S) {
186  VisitStmt(S);
187  ID.AddBoolean(S->isIfExists());
188  VisitNestedNameSpecifier(S->getQualifierLoc().getNestedNameSpecifier());
189  VisitName(S->getNameInfo().getName());
190}
191
192void StmtProfiler::VisitSEHTryStmt(const SEHTryStmt *S) {
193  VisitStmt(S);
194}
195
196void StmtProfiler::VisitSEHFinallyStmt(const SEHFinallyStmt *S) {
197  VisitStmt(S);
198}
199
200void StmtProfiler::VisitSEHExceptStmt(const SEHExceptStmt *S) {
201  VisitStmt(S);
202}
203
204void StmtProfiler::VisitObjCForCollectionStmt(const ObjCForCollectionStmt *S) {
205  VisitStmt(S);
206}
207
208void StmtProfiler::VisitObjCAtCatchStmt(const ObjCAtCatchStmt *S) {
209  VisitStmt(S);
210  ID.AddBoolean(S->hasEllipsis());
211  if (S->getCatchParamDecl())
212    VisitType(S->getCatchParamDecl()->getType());
213}
214
215void StmtProfiler::VisitObjCAtFinallyStmt(const ObjCAtFinallyStmt *S) {
216  VisitStmt(S);
217}
218
219void StmtProfiler::VisitObjCAtTryStmt(const ObjCAtTryStmt *S) {
220  VisitStmt(S);
221}
222
223void
224StmtProfiler::VisitObjCAtSynchronizedStmt(const ObjCAtSynchronizedStmt *S) {
225  VisitStmt(S);
226}
227
228void StmtProfiler::VisitObjCAtThrowStmt(const ObjCAtThrowStmt *S) {
229  VisitStmt(S);
230}
231
232void
233StmtProfiler::VisitObjCAutoreleasePoolStmt(const ObjCAutoreleasePoolStmt *S) {
234  VisitStmt(S);
235}
236
237void StmtProfiler::VisitExpr(const Expr *S) {
238  VisitStmt(S);
239}
240
241void StmtProfiler::VisitDeclRefExpr(const DeclRefExpr *S) {
242  VisitExpr(S);
243  if (!Canonical)
244    VisitNestedNameSpecifier(S->getQualifier());
245  VisitDecl(S->getDecl());
246  if (!Canonical)
247    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
248}
249
250void StmtProfiler::VisitPredefinedExpr(const PredefinedExpr *S) {
251  VisitExpr(S);
252  ID.AddInteger(S->getIdentType());
253}
254
255void StmtProfiler::VisitIntegerLiteral(const IntegerLiteral *S) {
256  VisitExpr(S);
257  S->getValue().Profile(ID);
258}
259
260void StmtProfiler::VisitCharacterLiteral(const CharacterLiteral *S) {
261  VisitExpr(S);
262  ID.AddInteger(S->getKind());
263  ID.AddInteger(S->getValue());
264}
265
266void StmtProfiler::VisitFloatingLiteral(const FloatingLiteral *S) {
267  VisitExpr(S);
268  S->getValue().Profile(ID);
269  ID.AddBoolean(S->isExact());
270}
271
272void StmtProfiler::VisitImaginaryLiteral(const ImaginaryLiteral *S) {
273  VisitExpr(S);
274}
275
276void StmtProfiler::VisitStringLiteral(const StringLiteral *S) {
277  VisitExpr(S);
278  ID.AddString(S->getBytes());
279  ID.AddInteger(S->getKind());
280}
281
282void StmtProfiler::VisitParenExpr(const ParenExpr *S) {
283  VisitExpr(S);
284}
285
286void StmtProfiler::VisitParenListExpr(const ParenListExpr *S) {
287  VisitExpr(S);
288}
289
290void StmtProfiler::VisitUnaryOperator(const UnaryOperator *S) {
291  VisitExpr(S);
292  ID.AddInteger(S->getOpcode());
293}
294
295void StmtProfiler::VisitOffsetOfExpr(const OffsetOfExpr *S) {
296  VisitType(S->getTypeSourceInfo()->getType());
297  unsigned n = S->getNumComponents();
298  for (unsigned i = 0; i < n; ++i) {
299    const OffsetOfExpr::OffsetOfNode& ON = S->getComponent(i);
300    ID.AddInteger(ON.getKind());
301    switch (ON.getKind()) {
302    case OffsetOfExpr::OffsetOfNode::Array:
303      // Expressions handled below.
304      break;
305
306    case OffsetOfExpr::OffsetOfNode::Field:
307      VisitDecl(ON.getField());
308      break;
309
310    case OffsetOfExpr::OffsetOfNode::Identifier:
311      ID.AddPointer(ON.getFieldName());
312      break;
313
314    case OffsetOfExpr::OffsetOfNode::Base:
315      // These nodes are implicit, and therefore don't need profiling.
316      break;
317    }
318  }
319
320  VisitExpr(S);
321}
322
323void
324StmtProfiler::VisitUnaryExprOrTypeTraitExpr(const UnaryExprOrTypeTraitExpr *S) {
325  VisitExpr(S);
326  ID.AddInteger(S->getKind());
327  if (S->isArgumentType())
328    VisitType(S->getArgumentType());
329}
330
331void StmtProfiler::VisitArraySubscriptExpr(const ArraySubscriptExpr *S) {
332  VisitExpr(S);
333}
334
335void StmtProfiler::VisitCallExpr(const CallExpr *S) {
336  VisitExpr(S);
337}
338
339void StmtProfiler::VisitMemberExpr(const MemberExpr *S) {
340  VisitExpr(S);
341  VisitDecl(S->getMemberDecl());
342  if (!Canonical)
343    VisitNestedNameSpecifier(S->getQualifier());
344  ID.AddBoolean(S->isArrow());
345}
346
347void StmtProfiler::VisitCompoundLiteralExpr(const CompoundLiteralExpr *S) {
348  VisitExpr(S);
349  ID.AddBoolean(S->isFileScope());
350}
351
352void StmtProfiler::VisitCastExpr(const CastExpr *S) {
353  VisitExpr(S);
354}
355
356void StmtProfiler::VisitImplicitCastExpr(const ImplicitCastExpr *S) {
357  VisitCastExpr(S);
358  ID.AddInteger(S->getValueKind());
359}
360
361void StmtProfiler::VisitExplicitCastExpr(const ExplicitCastExpr *S) {
362  VisitCastExpr(S);
363  VisitType(S->getTypeAsWritten());
364}
365
366void StmtProfiler::VisitCStyleCastExpr(const CStyleCastExpr *S) {
367  VisitExplicitCastExpr(S);
368}
369
370void StmtProfiler::VisitBinaryOperator(const BinaryOperator *S) {
371  VisitExpr(S);
372  ID.AddInteger(S->getOpcode());
373}
374
375void
376StmtProfiler::VisitCompoundAssignOperator(const CompoundAssignOperator *S) {
377  VisitBinaryOperator(S);
378}
379
380void StmtProfiler::VisitConditionalOperator(const ConditionalOperator *S) {
381  VisitExpr(S);
382}
383
384void StmtProfiler::VisitBinaryConditionalOperator(
385    const BinaryConditionalOperator *S) {
386  VisitExpr(S);
387}
388
389void StmtProfiler::VisitAddrLabelExpr(const AddrLabelExpr *S) {
390  VisitExpr(S);
391  VisitDecl(S->getLabel());
392}
393
394void StmtProfiler::VisitStmtExpr(const StmtExpr *S) {
395  VisitExpr(S);
396}
397
398void StmtProfiler::VisitShuffleVectorExpr(const ShuffleVectorExpr *S) {
399  VisitExpr(S);
400}
401
402void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
403  VisitExpr(S);
404}
405
406void StmtProfiler::VisitGNUNullExpr(const GNUNullExpr *S) {
407  VisitExpr(S);
408}
409
410void StmtProfiler::VisitVAArgExpr(const VAArgExpr *S) {
411  VisitExpr(S);
412}
413
414void StmtProfiler::VisitInitListExpr(const InitListExpr *S) {
415  if (S->getSyntacticForm()) {
416    VisitInitListExpr(S->getSyntacticForm());
417    return;
418  }
419
420  VisitExpr(S);
421}
422
423void StmtProfiler::VisitDesignatedInitExpr(const DesignatedInitExpr *S) {
424  VisitExpr(S);
425  ID.AddBoolean(S->usesGNUSyntax());
426  for (DesignatedInitExpr::const_designators_iterator D =
427         S->designators_begin(), DEnd = S->designators_end();
428       D != DEnd; ++D) {
429    if (D->isFieldDesignator()) {
430      ID.AddInteger(0);
431      VisitName(D->getFieldName());
432      continue;
433    }
434
435    if (D->isArrayDesignator()) {
436      ID.AddInteger(1);
437    } else {
438      assert(D->isArrayRangeDesignator());
439      ID.AddInteger(2);
440    }
441    ID.AddInteger(D->getFirstExprIndex());
442  }
443}
444
445void StmtProfiler::VisitImplicitValueInitExpr(const ImplicitValueInitExpr *S) {
446  VisitExpr(S);
447}
448
449void StmtProfiler::VisitExtVectorElementExpr(const ExtVectorElementExpr *S) {
450  VisitExpr(S);
451  VisitName(&S->getAccessor());
452}
453
454void StmtProfiler::VisitBlockExpr(const BlockExpr *S) {
455  VisitExpr(S);
456  VisitDecl(S->getBlockDecl());
457}
458
459void StmtProfiler::VisitBlockDeclRefExpr(const BlockDeclRefExpr *S) {
460  VisitExpr(S);
461  VisitDecl(S->getDecl());
462  ID.AddBoolean(S->isByRef());
463  ID.AddBoolean(S->isConstQualAdded());
464}
465
466void StmtProfiler::VisitGenericSelectionExpr(const GenericSelectionExpr *S) {
467  VisitExpr(S);
468  for (unsigned i = 0; i != S->getNumAssocs(); ++i) {
469    QualType T = S->getAssocType(i);
470    if (T.isNull())
471      ID.AddPointer(0);
472    else
473      VisitType(T);
474    VisitExpr(S->getAssocExpr(i));
475  }
476}
477
478void StmtProfiler::VisitAtomicExpr(const AtomicExpr *S) {
479  VisitExpr(S);
480  ID.AddInteger(S->getOp());
481}
482
483static Stmt::StmtClass DecodeOperatorCall(const CXXOperatorCallExpr *S,
484                                          UnaryOperatorKind &UnaryOp,
485                                          BinaryOperatorKind &BinaryOp) {
486  switch (S->getOperator()) {
487  case OO_None:
488  case OO_New:
489  case OO_Delete:
490  case OO_Array_New:
491  case OO_Array_Delete:
492  case OO_Arrow:
493  case OO_Call:
494  case OO_Conditional:
495  case NUM_OVERLOADED_OPERATORS:
496    llvm_unreachable("Invalid operator call kind");
497    return Stmt::ArraySubscriptExprClass;
498
499  case OO_Plus:
500    if (S->getNumArgs() == 1) {
501      UnaryOp = UO_Plus;
502      return Stmt::UnaryOperatorClass;
503    }
504
505    BinaryOp = BO_Add;
506    return Stmt::BinaryOperatorClass;
507
508  case OO_Minus:
509    if (S->getNumArgs() == 1) {
510      UnaryOp = UO_Minus;
511      return Stmt::UnaryOperatorClass;
512    }
513
514    BinaryOp = BO_Sub;
515    return Stmt::BinaryOperatorClass;
516
517  case OO_Star:
518    if (S->getNumArgs() == 1) {
519      UnaryOp = UO_Minus;
520      return Stmt::UnaryOperatorClass;
521    }
522
523    BinaryOp = BO_Sub;
524    return Stmt::BinaryOperatorClass;
525
526  case OO_Slash:
527    BinaryOp = BO_Div;
528    return Stmt::BinaryOperatorClass;
529
530  case OO_Percent:
531    BinaryOp = BO_Rem;
532    return Stmt::BinaryOperatorClass;
533
534  case OO_Caret:
535    BinaryOp = BO_Xor;
536    return Stmt::BinaryOperatorClass;
537
538  case OO_Amp:
539    if (S->getNumArgs() == 1) {
540      UnaryOp = UO_AddrOf;
541      return Stmt::UnaryOperatorClass;
542    }
543
544    BinaryOp = BO_And;
545    return Stmt::BinaryOperatorClass;
546
547  case OO_Pipe:
548    BinaryOp = BO_Or;
549    return Stmt::BinaryOperatorClass;
550
551  case OO_Tilde:
552    UnaryOp = UO_Not;
553    return Stmt::UnaryOperatorClass;
554
555  case OO_Exclaim:
556    UnaryOp = UO_LNot;
557    return Stmt::UnaryOperatorClass;
558
559  case OO_Equal:
560    BinaryOp = BO_Assign;
561    return Stmt::BinaryOperatorClass;
562
563  case OO_Less:
564    BinaryOp = BO_LT;
565    return Stmt::BinaryOperatorClass;
566
567  case OO_Greater:
568    BinaryOp = BO_GT;
569    return Stmt::BinaryOperatorClass;
570
571  case OO_PlusEqual:
572    BinaryOp = BO_AddAssign;
573    return Stmt::CompoundAssignOperatorClass;
574
575  case OO_MinusEqual:
576    BinaryOp = BO_SubAssign;
577    return Stmt::CompoundAssignOperatorClass;
578
579  case OO_StarEqual:
580    BinaryOp = BO_MulAssign;
581    return Stmt::CompoundAssignOperatorClass;
582
583  case OO_SlashEqual:
584    BinaryOp = BO_DivAssign;
585    return Stmt::CompoundAssignOperatorClass;
586
587  case OO_PercentEqual:
588    BinaryOp = BO_RemAssign;
589    return Stmt::CompoundAssignOperatorClass;
590
591  case OO_CaretEqual:
592    BinaryOp = BO_XorAssign;
593    return Stmt::CompoundAssignOperatorClass;
594
595  case OO_AmpEqual:
596    BinaryOp = BO_AndAssign;
597    return Stmt::CompoundAssignOperatorClass;
598
599  case OO_PipeEqual:
600    BinaryOp = BO_OrAssign;
601    return Stmt::CompoundAssignOperatorClass;
602
603  case OO_LessLess:
604    BinaryOp = BO_Shl;
605    return Stmt::BinaryOperatorClass;
606
607  case OO_GreaterGreater:
608    BinaryOp = BO_Shr;
609    return Stmt::BinaryOperatorClass;
610
611  case OO_LessLessEqual:
612    BinaryOp = BO_ShlAssign;
613    return Stmt::CompoundAssignOperatorClass;
614
615  case OO_GreaterGreaterEqual:
616    BinaryOp = BO_ShrAssign;
617    return Stmt::CompoundAssignOperatorClass;
618
619  case OO_EqualEqual:
620    BinaryOp = BO_EQ;
621    return Stmt::BinaryOperatorClass;
622
623  case OO_ExclaimEqual:
624    BinaryOp = BO_NE;
625    return Stmt::BinaryOperatorClass;
626
627  case OO_LessEqual:
628    BinaryOp = BO_LE;
629    return Stmt::BinaryOperatorClass;
630
631  case OO_GreaterEqual:
632    BinaryOp = BO_GE;
633    return Stmt::BinaryOperatorClass;
634
635  case OO_AmpAmp:
636    BinaryOp = BO_LAnd;
637    return Stmt::BinaryOperatorClass;
638
639  case OO_PipePipe:
640    BinaryOp = BO_LOr;
641    return Stmt::BinaryOperatorClass;
642
643  case OO_PlusPlus:
644    UnaryOp = S->getNumArgs() == 1? UO_PreInc
645                                  : UO_PostInc;
646    return Stmt::UnaryOperatorClass;
647
648  case OO_MinusMinus:
649    UnaryOp = S->getNumArgs() == 1? UO_PreDec
650                                  : UO_PostDec;
651    return Stmt::UnaryOperatorClass;
652
653  case OO_Comma:
654    BinaryOp = BO_Comma;
655    return Stmt::BinaryOperatorClass;
656
657
658  case OO_ArrowStar:
659    BinaryOp = BO_PtrMemI;
660    return Stmt::BinaryOperatorClass;
661
662  case OO_Subscript:
663    return Stmt::ArraySubscriptExprClass;
664  }
665
666  llvm_unreachable("Invalid overloaded operator expression");
667}
668
669
670void StmtProfiler::VisitCXXOperatorCallExpr(const CXXOperatorCallExpr *S) {
671  if (S->isTypeDependent()) {
672    // Type-dependent operator calls are profiled like their underlying
673    // syntactic operator.
674    UnaryOperatorKind UnaryOp = UO_Extension;
675    BinaryOperatorKind BinaryOp = BO_Comma;
676    Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
677
678    ID.AddInteger(SC);
679    for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
680      Visit(S->getArg(I));
681    if (SC == Stmt::UnaryOperatorClass)
682      ID.AddInteger(UnaryOp);
683    else if (SC == Stmt::BinaryOperatorClass ||
684             SC == Stmt::CompoundAssignOperatorClass)
685      ID.AddInteger(BinaryOp);
686    else
687      assert(SC == Stmt::ArraySubscriptExprClass);
688
689    return;
690  }
691
692  VisitCallExpr(S);
693  ID.AddInteger(S->getOperator());
694}
695
696void StmtProfiler::VisitCXXMemberCallExpr(const CXXMemberCallExpr *S) {
697  VisitCallExpr(S);
698}
699
700void StmtProfiler::VisitCUDAKernelCallExpr(const CUDAKernelCallExpr *S) {
701  VisitCallExpr(S);
702}
703
704void StmtProfiler::VisitAsTypeExpr(const AsTypeExpr *S) {
705  VisitExpr(S);
706}
707
708void StmtProfiler::VisitCXXNamedCastExpr(const CXXNamedCastExpr *S) {
709  VisitExplicitCastExpr(S);
710}
711
712void StmtProfiler::VisitCXXStaticCastExpr(const CXXStaticCastExpr *S) {
713  VisitCXXNamedCastExpr(S);
714}
715
716void StmtProfiler::VisitCXXDynamicCastExpr(const CXXDynamicCastExpr *S) {
717  VisitCXXNamedCastExpr(S);
718}
719
720void
721StmtProfiler::VisitCXXReinterpretCastExpr(const CXXReinterpretCastExpr *S) {
722  VisitCXXNamedCastExpr(S);
723}
724
725void StmtProfiler::VisitCXXConstCastExpr(const CXXConstCastExpr *S) {
726  VisitCXXNamedCastExpr(S);
727}
728
729void StmtProfiler::VisitCXXBoolLiteralExpr(const CXXBoolLiteralExpr *S) {
730  VisitExpr(S);
731  ID.AddBoolean(S->getValue());
732}
733
734void StmtProfiler::VisitCXXNullPtrLiteralExpr(const CXXNullPtrLiteralExpr *S) {
735  VisitExpr(S);
736}
737
738void StmtProfiler::VisitCXXTypeidExpr(const CXXTypeidExpr *S) {
739  VisitExpr(S);
740  if (S->isTypeOperand())
741    VisitType(S->getTypeOperand());
742}
743
744void StmtProfiler::VisitCXXUuidofExpr(const CXXUuidofExpr *S) {
745  VisitExpr(S);
746  if (S->isTypeOperand())
747    VisitType(S->getTypeOperand());
748}
749
750void StmtProfiler::VisitCXXThisExpr(const CXXThisExpr *S) {
751  VisitExpr(S);
752}
753
754void StmtProfiler::VisitCXXThrowExpr(const CXXThrowExpr *S) {
755  VisitExpr(S);
756}
757
758void StmtProfiler::VisitCXXDefaultArgExpr(const CXXDefaultArgExpr *S) {
759  VisitExpr(S);
760  VisitDecl(S->getParam());
761}
762
763void StmtProfiler::VisitCXXBindTemporaryExpr(const CXXBindTemporaryExpr *S) {
764  VisitExpr(S);
765  VisitDecl(
766         const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
767}
768
769void StmtProfiler::VisitCXXConstructExpr(const CXXConstructExpr *S) {
770  VisitExpr(S);
771  VisitDecl(S->getConstructor());
772  ID.AddBoolean(S->isElidable());
773}
774
775void StmtProfiler::VisitCXXFunctionalCastExpr(const CXXFunctionalCastExpr *S) {
776  VisitExplicitCastExpr(S);
777}
778
779void
780StmtProfiler::VisitCXXTemporaryObjectExpr(const CXXTemporaryObjectExpr *S) {
781  VisitCXXConstructExpr(S);
782}
783
784void
785StmtProfiler::VisitCXXScalarValueInitExpr(const CXXScalarValueInitExpr *S) {
786  VisitExpr(S);
787}
788
789void StmtProfiler::VisitCXXDeleteExpr(const CXXDeleteExpr *S) {
790  VisitExpr(S);
791  ID.AddBoolean(S->isGlobalDelete());
792  ID.AddBoolean(S->isArrayForm());
793  VisitDecl(S->getOperatorDelete());
794}
795
796
797void StmtProfiler::VisitCXXNewExpr(const CXXNewExpr *S) {
798  VisitExpr(S);
799  VisitType(S->getAllocatedType());
800  VisitDecl(S->getOperatorNew());
801  VisitDecl(S->getOperatorDelete());
802  VisitDecl(S->getConstructor());
803  ID.AddBoolean(S->isArray());
804  ID.AddInteger(S->getNumPlacementArgs());
805  ID.AddBoolean(S->isGlobalNew());
806  ID.AddBoolean(S->isParenTypeId());
807  ID.AddBoolean(S->hasInitializer());
808  ID.AddInteger(S->getNumConstructorArgs());
809}
810
811void
812StmtProfiler::VisitCXXPseudoDestructorExpr(const CXXPseudoDestructorExpr *S) {
813  VisitExpr(S);
814  ID.AddBoolean(S->isArrow());
815  VisitNestedNameSpecifier(S->getQualifier());
816  VisitType(S->getDestroyedType());
817}
818
819void StmtProfiler::VisitOverloadExpr(const OverloadExpr *S) {
820  VisitExpr(S);
821  VisitNestedNameSpecifier(S->getQualifier());
822  VisitName(S->getName());
823  ID.AddBoolean(S->hasExplicitTemplateArgs());
824  if (S->hasExplicitTemplateArgs())
825    VisitTemplateArguments(S->getExplicitTemplateArgs().getTemplateArgs(),
826                           S->getExplicitTemplateArgs().NumTemplateArgs);
827}
828
829void
830StmtProfiler::VisitUnresolvedLookupExpr(const UnresolvedLookupExpr *S) {
831  VisitOverloadExpr(S);
832}
833
834void StmtProfiler::VisitUnaryTypeTraitExpr(const UnaryTypeTraitExpr *S) {
835  VisitExpr(S);
836  ID.AddInteger(S->getTrait());
837  VisitType(S->getQueriedType());
838}
839
840void StmtProfiler::VisitBinaryTypeTraitExpr(const BinaryTypeTraitExpr *S) {
841  VisitExpr(S);
842  ID.AddInteger(S->getTrait());
843  VisitType(S->getLhsType());
844  VisitType(S->getRhsType());
845}
846
847void StmtProfiler::VisitArrayTypeTraitExpr(const ArrayTypeTraitExpr *S) {
848  VisitExpr(S);
849  ID.AddInteger(S->getTrait());
850  VisitType(S->getQueriedType());
851}
852
853void StmtProfiler::VisitExpressionTraitExpr(const ExpressionTraitExpr *S) {
854  VisitExpr(S);
855  ID.AddInteger(S->getTrait());
856  VisitExpr(S->getQueriedExpression());
857}
858
859void StmtProfiler::VisitDependentScopeDeclRefExpr(
860    const DependentScopeDeclRefExpr *S) {
861  VisitExpr(S);
862  VisitName(S->getDeclName());
863  VisitNestedNameSpecifier(S->getQualifier());
864  ID.AddBoolean(S->hasExplicitTemplateArgs());
865  if (S->hasExplicitTemplateArgs())
866    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
867}
868
869void StmtProfiler::VisitExprWithCleanups(const ExprWithCleanups *S) {
870  VisitExpr(S);
871}
872
873void StmtProfiler::VisitCXXUnresolvedConstructExpr(
874    const CXXUnresolvedConstructExpr *S) {
875  VisitExpr(S);
876  VisitType(S->getTypeAsWritten());
877}
878
879void StmtProfiler::VisitCXXDependentScopeMemberExpr(
880    const CXXDependentScopeMemberExpr *S) {
881  ID.AddBoolean(S->isImplicitAccess());
882  if (!S->isImplicitAccess()) {
883    VisitExpr(S);
884    ID.AddBoolean(S->isArrow());
885  }
886  VisitNestedNameSpecifier(S->getQualifier());
887  VisitName(S->getMember());
888  ID.AddBoolean(S->hasExplicitTemplateArgs());
889  if (S->hasExplicitTemplateArgs())
890    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
891}
892
893void StmtProfiler::VisitUnresolvedMemberExpr(const UnresolvedMemberExpr *S) {
894  ID.AddBoolean(S->isImplicitAccess());
895  if (!S->isImplicitAccess()) {
896    VisitExpr(S);
897    ID.AddBoolean(S->isArrow());
898  }
899  VisitNestedNameSpecifier(S->getQualifier());
900  VisitName(S->getMemberName());
901  ID.AddBoolean(S->hasExplicitTemplateArgs());
902  if (S->hasExplicitTemplateArgs())
903    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
904}
905
906void StmtProfiler::VisitCXXNoexceptExpr(const CXXNoexceptExpr *S) {
907  VisitExpr(S);
908}
909
910void StmtProfiler::VisitPackExpansionExpr(const PackExpansionExpr *S) {
911  VisitExpr(S);
912}
913
914void StmtProfiler::VisitSizeOfPackExpr(const SizeOfPackExpr *S) {
915  VisitExpr(S);
916  VisitDecl(S->getPack());
917}
918
919void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
920    const SubstNonTypeTemplateParmPackExpr *S) {
921  VisitExpr(S);
922  VisitDecl(S->getParameterPack());
923  VisitTemplateArgument(S->getArgumentPack());
924}
925
926void StmtProfiler::VisitSubstNonTypeTemplateParmExpr(
927    const SubstNonTypeTemplateParmExpr *E) {
928  // Profile exactly as the replacement expression.
929  Visit(E->getReplacement());
930}
931
932void StmtProfiler::VisitMaterializeTemporaryExpr(
933                                           const MaterializeTemporaryExpr *S) {
934  VisitExpr(S);
935}
936
937void StmtProfiler::VisitOpaqueValueExpr(const OpaqueValueExpr *E) {
938  VisitExpr(E);
939}
940
941void StmtProfiler::VisitObjCStringLiteral(const ObjCStringLiteral *S) {
942  VisitExpr(S);
943}
944
945void StmtProfiler::VisitObjCEncodeExpr(const ObjCEncodeExpr *S) {
946  VisitExpr(S);
947  VisitType(S->getEncodedType());
948}
949
950void StmtProfiler::VisitObjCSelectorExpr(const ObjCSelectorExpr *S) {
951  VisitExpr(S);
952  VisitName(S->getSelector());
953}
954
955void StmtProfiler::VisitObjCProtocolExpr(const ObjCProtocolExpr *S) {
956  VisitExpr(S);
957  VisitDecl(S->getProtocol());
958}
959
960void StmtProfiler::VisitObjCIvarRefExpr(const ObjCIvarRefExpr *S) {
961  VisitExpr(S);
962  VisitDecl(S->getDecl());
963  ID.AddBoolean(S->isArrow());
964  ID.AddBoolean(S->isFreeIvar());
965}
966
967void StmtProfiler::VisitObjCPropertyRefExpr(const ObjCPropertyRefExpr *S) {
968  VisitExpr(S);
969  if (S->isImplicitProperty()) {
970    VisitDecl(S->getImplicitPropertyGetter());
971    VisitDecl(S->getImplicitPropertySetter());
972  } else {
973    VisitDecl(S->getExplicitProperty());
974  }
975  if (S->isSuperReceiver()) {
976    ID.AddBoolean(S->isSuperReceiver());
977    VisitType(S->getSuperReceiverType());
978  }
979}
980
981void StmtProfiler::VisitObjCMessageExpr(const ObjCMessageExpr *S) {
982  VisitExpr(S);
983  VisitName(S->getSelector());
984  VisitDecl(S->getMethodDecl());
985}
986
987void StmtProfiler::VisitObjCIsaExpr(const ObjCIsaExpr *S) {
988  VisitExpr(S);
989  ID.AddBoolean(S->isArrow());
990}
991
992void StmtProfiler::VisitObjCIndirectCopyRestoreExpr(
993    const ObjCIndirectCopyRestoreExpr *S) {
994  VisitExpr(S);
995  ID.AddBoolean(S->shouldCopy());
996}
997
998void StmtProfiler::VisitObjCBridgedCastExpr(const ObjCBridgedCastExpr *S) {
999  VisitExplicitCastExpr(S);
1000  ID.AddBoolean(S->getBridgeKind());
1001}
1002
1003void StmtProfiler::VisitDecl(const Decl *D) {
1004  ID.AddInteger(D? D->getKind() : 0);
1005
1006  if (Canonical && D) {
1007    if (const NonTypeTemplateParmDecl *NTTP =
1008          dyn_cast<NonTypeTemplateParmDecl>(D)) {
1009      ID.AddInteger(NTTP->getDepth());
1010      ID.AddInteger(NTTP->getIndex());
1011      ID.AddBoolean(NTTP->isParameterPack());
1012      VisitType(NTTP->getType());
1013      return;
1014    }
1015
1016    if (const ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
1017      // The Itanium C++ ABI uses the type, scope depth, and scope
1018      // index of a parameter when mangling expressions that involve
1019      // function parameters, so we will use the parameter's type for
1020      // establishing function parameter identity. That way, our
1021      // definition of "equivalent" (per C++ [temp.over.link]) is at
1022      // least as strong as the definition of "equivalent" used for
1023      // name mangling.
1024      VisitType(Parm->getType());
1025      ID.AddInteger(Parm->getFunctionScopeDepth());
1026      ID.AddInteger(Parm->getFunctionScopeIndex());
1027      return;
1028    }
1029
1030    if (const TemplateTemplateParmDecl *TTP =
1031          dyn_cast<TemplateTemplateParmDecl>(D)) {
1032      ID.AddInteger(TTP->getDepth());
1033      ID.AddInteger(TTP->getIndex());
1034      ID.AddBoolean(TTP->isParameterPack());
1035      return;
1036    }
1037  }
1038
1039  ID.AddPointer(D? D->getCanonicalDecl() : 0);
1040}
1041
1042void StmtProfiler::VisitType(QualType T) {
1043  if (Canonical)
1044    T = Context.getCanonicalType(T);
1045
1046  ID.AddPointer(T.getAsOpaquePtr());
1047}
1048
1049void StmtProfiler::VisitName(DeclarationName Name) {
1050  ID.AddPointer(Name.getAsOpaquePtr());
1051}
1052
1053void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
1054  if (Canonical)
1055    NNS = Context.getCanonicalNestedNameSpecifier(NNS);
1056  ID.AddPointer(NNS);
1057}
1058
1059void StmtProfiler::VisitTemplateName(TemplateName Name) {
1060  if (Canonical)
1061    Name = Context.getCanonicalTemplateName(Name);
1062
1063  Name.Profile(ID);
1064}
1065
1066void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
1067                                          unsigned NumArgs) {
1068  ID.AddInteger(NumArgs);
1069  for (unsigned I = 0; I != NumArgs; ++I)
1070    VisitTemplateArgument(Args[I].getArgument());
1071}
1072
1073void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
1074  // Mostly repetitive with TemplateArgument::Profile!
1075  ID.AddInteger(Arg.getKind());
1076  switch (Arg.getKind()) {
1077  case TemplateArgument::Null:
1078    break;
1079
1080  case TemplateArgument::Type:
1081    VisitType(Arg.getAsType());
1082    break;
1083
1084  case TemplateArgument::Template:
1085  case TemplateArgument::TemplateExpansion:
1086    VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
1087    break;
1088
1089  case TemplateArgument::Declaration:
1090    VisitDecl(Arg.getAsDecl());
1091    break;
1092
1093  case TemplateArgument::Integral:
1094    Arg.getAsIntegral()->Profile(ID);
1095    VisitType(Arg.getIntegralType());
1096    break;
1097
1098  case TemplateArgument::Expression:
1099    Visit(Arg.getAsExpr());
1100    break;
1101
1102  case TemplateArgument::Pack:
1103    const TemplateArgument *Pack = Arg.pack_begin();
1104    for (unsigned i = 0, e = Arg.pack_size(); i != e; ++i)
1105      VisitTemplateArgument(Pack[i]);
1106    break;
1107  }
1108}
1109
1110void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
1111                   bool Canonical) const {
1112  StmtProfiler Profiler(ID, Context, Canonical);
1113  Profiler.Visit(this);
1114}
1115