StmtProfile.cpp revision 7502c1d3ce8bb97bcc4f7bebef507040bd93b26f 
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 StmtVisitor<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(Stmt *S);
37
38#define STMT(Node, Base) void Visit##Node(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(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, unsigned NumArgs);
63
64    /// \brief Visit a single template argument.
65    void VisitTemplateArgument(const TemplateArgument &Arg);
66  };
67}
68
69void StmtProfiler::VisitStmt(Stmt *S) {
70  ID.AddInteger(S->getStmtClass());
71  for (Stmt::child_range C = S->children(); C; ++C)
72    Visit(*C);
73}
74
75void StmtProfiler::VisitDeclStmt(DeclStmt *S) {
76  VisitStmt(S);
77  for (DeclStmt::decl_iterator D = S->decl_begin(), DEnd = S->decl_end();
78       D != DEnd; ++D)
79    VisitDecl(*D);
80}
81
82void StmtProfiler::VisitNullStmt(NullStmt *S) {
83  VisitStmt(S);
84}
85
86void StmtProfiler::VisitCompoundStmt(CompoundStmt *S) {
87  VisitStmt(S);
88}
89
90void StmtProfiler::VisitSwitchCase(SwitchCase *S) {
91  VisitStmt(S);
92}
93
94void StmtProfiler::VisitCaseStmt(CaseStmt *S) {
95  VisitStmt(S);
96}
97
98void StmtProfiler::VisitDefaultStmt(DefaultStmt *S) {
99  VisitStmt(S);
100}
101
102void StmtProfiler::VisitLabelStmt(LabelStmt *S) {
103  VisitStmt(S);
104  VisitName(S->getID());
105}
106
107void StmtProfiler::VisitIfStmt(IfStmt *S) {
108  VisitStmt(S);
109  VisitDecl(S->getConditionVariable());
110}
111
112void StmtProfiler::VisitSwitchStmt(SwitchStmt *S) {
113  VisitStmt(S);
114  VisitDecl(S->getConditionVariable());
115}
116
117void StmtProfiler::VisitWhileStmt(WhileStmt *S) {
118  VisitStmt(S);
119  VisitDecl(S->getConditionVariable());
120}
121
122void StmtProfiler::VisitDoStmt(DoStmt *S) {
123  VisitStmt(S);
124}
125
126void StmtProfiler::VisitForStmt(ForStmt *S) {
127  VisitStmt(S);
128}
129
130void StmtProfiler::VisitGotoStmt(GotoStmt *S) {
131  VisitStmt(S);
132  VisitName(S->getLabel()->getID());
133}
134
135void StmtProfiler::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
136  VisitStmt(S);
137}
138
139void StmtProfiler::VisitContinueStmt(ContinueStmt *S) {
140  VisitStmt(S);
141}
142
143void StmtProfiler::VisitBreakStmt(BreakStmt *S) {
144  VisitStmt(S);
145}
146
147void StmtProfiler::VisitReturnStmt(ReturnStmt *S) {
148  VisitStmt(S);
149}
150
151void StmtProfiler::VisitAsmStmt(AsmStmt *S) {
152  VisitStmt(S);
153  ID.AddBoolean(S->isVolatile());
154  ID.AddBoolean(S->isSimple());
155  VisitStringLiteral(S->getAsmString());
156  ID.AddInteger(S->getNumOutputs());
157  for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
158    ID.AddString(S->getOutputName(I));
159    VisitStringLiteral(S->getOutputConstraintLiteral(I));
160  }
161  ID.AddInteger(S->getNumInputs());
162  for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
163    ID.AddString(S->getInputName(I));
164    VisitStringLiteral(S->getInputConstraintLiteral(I));
165  }
166  ID.AddInteger(S->getNumClobbers());
167  for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
168    VisitStringLiteral(S->getClobber(I));
169}
170
171void StmtProfiler::VisitCXXCatchStmt(CXXCatchStmt *S) {
172  VisitStmt(S);
173  VisitType(S->getCaughtType());
174}
175
176void StmtProfiler::VisitCXXTryStmt(CXXTryStmt *S) {
177  VisitStmt(S);
178}
179
180void StmtProfiler::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
181  VisitStmt(S);
182}
183
184void StmtProfiler::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
185  VisitStmt(S);
186  ID.AddBoolean(S->hasEllipsis());
187  if (S->getCatchParamDecl())
188    VisitType(S->getCatchParamDecl()->getType());
189}
190
191void StmtProfiler::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
192  VisitStmt(S);
193}
194
195void StmtProfiler::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
196  VisitStmt(S);
197}
198
199void StmtProfiler::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
200  VisitStmt(S);
201}
202
203void StmtProfiler::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
204  VisitStmt(S);
205}
206
207void StmtProfiler::VisitExpr(Expr *S) {
208  VisitStmt(S);
209}
210
211void StmtProfiler::VisitDeclRefExpr(DeclRefExpr *S) {
212  VisitExpr(S);
213  if (!Canonical)
214    VisitNestedNameSpecifier(S->getQualifier());
215  VisitDecl(S->getDecl());
216  if (!Canonical)
217    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
218}
219
220void StmtProfiler::VisitPredefinedExpr(PredefinedExpr *S) {
221  VisitExpr(S);
222  ID.AddInteger(S->getIdentType());
223}
224
225void StmtProfiler::VisitIntegerLiteral(IntegerLiteral *S) {
226  VisitExpr(S);
227  S->getValue().Profile(ID);
228}
229
230void StmtProfiler::VisitCharacterLiteral(CharacterLiteral *S) {
231  VisitExpr(S);
232  ID.AddBoolean(S->isWide());
233  ID.AddInteger(S->getValue());
234}
235
236void StmtProfiler::VisitFloatingLiteral(FloatingLiteral *S) {
237  VisitExpr(S);
238  S->getValue().Profile(ID);
239  ID.AddBoolean(S->isExact());
240}
241
242void StmtProfiler::VisitImaginaryLiteral(ImaginaryLiteral *S) {
243  VisitExpr(S);
244}
245
246void StmtProfiler::VisitStringLiteral(StringLiteral *S) {
247  VisitExpr(S);
248  ID.AddString(S->getString());
249  ID.AddBoolean(S->isWide());
250}
251
252void StmtProfiler::VisitParenExpr(ParenExpr *S) {
253  VisitExpr(S);
254}
255
256void StmtProfiler::VisitParenListExpr(ParenListExpr *S) {
257  VisitExpr(S);
258}
259
260void StmtProfiler::VisitUnaryOperator(UnaryOperator *S) {
261  VisitExpr(S);
262  ID.AddInteger(S->getOpcode());
263}
264
265void StmtProfiler::VisitOffsetOfExpr(OffsetOfExpr *S) {
266  VisitType(S->getTypeSourceInfo()->getType());
267  unsigned n = S->getNumComponents();
268  for (unsigned i = 0; i < n; ++i) {
269    const OffsetOfExpr::OffsetOfNode& ON = S->getComponent(i);
270    ID.AddInteger(ON.getKind());
271    switch (ON.getKind()) {
272    case OffsetOfExpr::OffsetOfNode::Array:
273      // Expressions handled below.
274      break;
275
276    case OffsetOfExpr::OffsetOfNode::Field:
277      VisitDecl(ON.getField());
278      break;
279
280    case OffsetOfExpr::OffsetOfNode::Identifier:
281      ID.AddPointer(ON.getFieldName());
282      break;
283
284    case OffsetOfExpr::OffsetOfNode::Base:
285      // These nodes are implicit, and therefore don't need profiling.
286      break;
287    }
288  }
289
290  VisitExpr(S);
291}
292
293void StmtProfiler::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *S) {
294  VisitExpr(S);
295  ID.AddBoolean(S->isSizeOf());
296  if (S->isArgumentType())
297    VisitType(S->getArgumentType());
298}
299
300void StmtProfiler::VisitArraySubscriptExpr(ArraySubscriptExpr *S) {
301  VisitExpr(S);
302}
303
304void StmtProfiler::VisitCallExpr(CallExpr *S) {
305  VisitExpr(S);
306}
307
308void StmtProfiler::VisitMemberExpr(MemberExpr *S) {
309  VisitExpr(S);
310  VisitDecl(S->getMemberDecl());
311  if (!Canonical)
312    VisitNestedNameSpecifier(S->getQualifier());
313  ID.AddBoolean(S->isArrow());
314}
315
316void StmtProfiler::VisitCompoundLiteralExpr(CompoundLiteralExpr *S) {
317  VisitExpr(S);
318  ID.AddBoolean(S->isFileScope());
319}
320
321void StmtProfiler::VisitCastExpr(CastExpr *S) {
322  VisitExpr(S);
323}
324
325void StmtProfiler::VisitImplicitCastExpr(ImplicitCastExpr *S) {
326  VisitCastExpr(S);
327  ID.AddInteger(S->getValueKind());
328}
329
330void StmtProfiler::VisitExplicitCastExpr(ExplicitCastExpr *S) {
331  VisitCastExpr(S);
332  VisitType(S->getTypeAsWritten());
333}
334
335void StmtProfiler::VisitCStyleCastExpr(CStyleCastExpr *S) {
336  VisitExplicitCastExpr(S);
337}
338
339void StmtProfiler::VisitBinaryOperator(BinaryOperator *S) {
340  VisitExpr(S);
341  ID.AddInteger(S->getOpcode());
342}
343
344void StmtProfiler::VisitCompoundAssignOperator(CompoundAssignOperator *S) {
345  VisitBinaryOperator(S);
346}
347
348void StmtProfiler::VisitConditionalOperator(ConditionalOperator *S) {
349  VisitExpr(S);
350}
351
352void StmtProfiler::VisitAddrLabelExpr(AddrLabelExpr *S) {
353  VisitExpr(S);
354  VisitName(S->getLabel()->getID());
355}
356
357void StmtProfiler::VisitStmtExpr(StmtExpr *S) {
358  VisitExpr(S);
359}
360
361void StmtProfiler::VisitShuffleVectorExpr(ShuffleVectorExpr *S) {
362  VisitExpr(S);
363}
364
365void StmtProfiler::VisitChooseExpr(ChooseExpr *S) {
366  VisitExpr(S);
367}
368
369void StmtProfiler::VisitGNUNullExpr(GNUNullExpr *S) {
370  VisitExpr(S);
371}
372
373void StmtProfiler::VisitVAArgExpr(VAArgExpr *S) {
374  VisitExpr(S);
375}
376
377void StmtProfiler::VisitInitListExpr(InitListExpr *S) {
378  if (S->getSyntacticForm()) {
379    VisitInitListExpr(S->getSyntacticForm());
380    return;
381  }
382
383  VisitExpr(S);
384}
385
386void StmtProfiler::VisitDesignatedInitExpr(DesignatedInitExpr *S) {
387  VisitExpr(S);
388  ID.AddBoolean(S->usesGNUSyntax());
389  for (DesignatedInitExpr::designators_iterator D = S->designators_begin(),
390                                             DEnd = S->designators_end();
391       D != DEnd; ++D) {
392    if (D->isFieldDesignator()) {
393      ID.AddInteger(0);
394      VisitName(D->getFieldName());
395      continue;
396    }
397
398    if (D->isArrayDesignator()) {
399      ID.AddInteger(1);
400    } else {
401      assert(D->isArrayRangeDesignator());
402      ID.AddInteger(2);
403    }
404    ID.AddInteger(D->getFirstExprIndex());
405  }
406}
407
408void StmtProfiler::VisitImplicitValueInitExpr(ImplicitValueInitExpr *S) {
409  VisitExpr(S);
410}
411
412void StmtProfiler::VisitExtVectorElementExpr(ExtVectorElementExpr *S) {
413  VisitExpr(S);
414  VisitName(&S->getAccessor());
415}
416
417void StmtProfiler::VisitBlockExpr(BlockExpr *S) {
418  VisitExpr(S);
419  VisitDecl(S->getBlockDecl());
420}
421
422void StmtProfiler::VisitBlockDeclRefExpr(BlockDeclRefExpr *S) {
423  VisitExpr(S);
424  VisitDecl(S->getDecl());
425  ID.AddBoolean(S->isByRef());
426  ID.AddBoolean(S->isConstQualAdded());
427}
428
429static Stmt::StmtClass DecodeOperatorCall(CXXOperatorCallExpr *S,
430                                          UnaryOperatorKind &UnaryOp,
431                                          BinaryOperatorKind &BinaryOp) {
432  switch (S->getOperator()) {
433  case OO_None:
434  case OO_New:
435  case OO_Delete:
436  case OO_Array_New:
437  case OO_Array_Delete:
438  case OO_Arrow:
439  case OO_Call:
440  case OO_Conditional:
441  case NUM_OVERLOADED_OPERATORS:
442    llvm_unreachable("Invalid operator call kind");
443    return Stmt::ArraySubscriptExprClass;
444
445  case OO_Plus:
446    if (S->getNumArgs() == 1) {
447      UnaryOp = UO_Plus;
448      return Stmt::UnaryOperatorClass;
449    }
450
451    BinaryOp = BO_Add;
452    return Stmt::BinaryOperatorClass;
453
454  case OO_Minus:
455    if (S->getNumArgs() == 1) {
456      UnaryOp = UO_Minus;
457      return Stmt::UnaryOperatorClass;
458    }
459
460    BinaryOp = BO_Sub;
461    return Stmt::BinaryOperatorClass;
462
463  case OO_Star:
464    if (S->getNumArgs() == 1) {
465      UnaryOp = UO_Minus;
466      return Stmt::UnaryOperatorClass;
467    }
468
469    BinaryOp = BO_Sub;
470    return Stmt::BinaryOperatorClass;
471
472  case OO_Slash:
473    BinaryOp = BO_Div;
474    return Stmt::BinaryOperatorClass;
475
476  case OO_Percent:
477    BinaryOp = BO_Rem;
478    return Stmt::BinaryOperatorClass;
479
480  case OO_Caret:
481    BinaryOp = BO_Xor;
482    return Stmt::BinaryOperatorClass;
483
484  case OO_Amp:
485    if (S->getNumArgs() == 1) {
486      UnaryOp = UO_AddrOf;
487      return Stmt::UnaryOperatorClass;
488    }
489
490    BinaryOp = BO_And;
491    return Stmt::BinaryOperatorClass;
492
493  case OO_Pipe:
494    BinaryOp = BO_Or;
495    return Stmt::BinaryOperatorClass;
496
497  case OO_Tilde:
498    UnaryOp = UO_Not;
499    return Stmt::UnaryOperatorClass;
500
501  case OO_Exclaim:
502    UnaryOp = UO_LNot;
503    return Stmt::UnaryOperatorClass;
504
505  case OO_Equal:
506    BinaryOp = BO_Assign;
507    return Stmt::BinaryOperatorClass;
508
509  case OO_Less:
510    BinaryOp = BO_LT;
511    return Stmt::BinaryOperatorClass;
512
513  case OO_Greater:
514    BinaryOp = BO_GT;
515    return Stmt::BinaryOperatorClass;
516
517  case OO_PlusEqual:
518    BinaryOp = BO_AddAssign;
519    return Stmt::CompoundAssignOperatorClass;
520
521  case OO_MinusEqual:
522    BinaryOp = BO_SubAssign;
523    return Stmt::CompoundAssignOperatorClass;
524
525  case OO_StarEqual:
526    BinaryOp = BO_MulAssign;
527    return Stmt::CompoundAssignOperatorClass;
528
529  case OO_SlashEqual:
530    BinaryOp = BO_DivAssign;
531    return Stmt::CompoundAssignOperatorClass;
532
533  case OO_PercentEqual:
534    BinaryOp = BO_RemAssign;
535    return Stmt::CompoundAssignOperatorClass;
536
537  case OO_CaretEqual:
538    BinaryOp = BO_XorAssign;
539    return Stmt::CompoundAssignOperatorClass;
540
541  case OO_AmpEqual:
542    BinaryOp = BO_AndAssign;
543    return Stmt::CompoundAssignOperatorClass;
544
545  case OO_PipeEqual:
546    BinaryOp = BO_OrAssign;
547    return Stmt::CompoundAssignOperatorClass;
548
549  case OO_LessLess:
550    BinaryOp = BO_Shl;
551    return Stmt::BinaryOperatorClass;
552
553  case OO_GreaterGreater:
554    BinaryOp = BO_Shr;
555    return Stmt::BinaryOperatorClass;
556
557  case OO_LessLessEqual:
558    BinaryOp = BO_ShlAssign;
559    return Stmt::CompoundAssignOperatorClass;
560
561  case OO_GreaterGreaterEqual:
562    BinaryOp = BO_ShrAssign;
563    return Stmt::CompoundAssignOperatorClass;
564
565  case OO_EqualEqual:
566    BinaryOp = BO_EQ;
567    return Stmt::BinaryOperatorClass;
568
569  case OO_ExclaimEqual:
570    BinaryOp = BO_NE;
571    return Stmt::BinaryOperatorClass;
572
573  case OO_LessEqual:
574    BinaryOp = BO_LE;
575    return Stmt::BinaryOperatorClass;
576
577  case OO_GreaterEqual:
578    BinaryOp = BO_GE;
579    return Stmt::BinaryOperatorClass;
580
581  case OO_AmpAmp:
582    BinaryOp = BO_LAnd;
583    return Stmt::BinaryOperatorClass;
584
585  case OO_PipePipe:
586    BinaryOp = BO_LOr;
587    return Stmt::BinaryOperatorClass;
588
589  case OO_PlusPlus:
590    UnaryOp = S->getNumArgs() == 1? UO_PreInc
591                                  : UO_PostInc;
592    return Stmt::UnaryOperatorClass;
593
594  case OO_MinusMinus:
595    UnaryOp = S->getNumArgs() == 1? UO_PreDec
596                                  : UO_PostDec;
597    return Stmt::UnaryOperatorClass;
598
599  case OO_Comma:
600    BinaryOp = BO_Comma;
601    return Stmt::BinaryOperatorClass;
602
603
604  case OO_ArrowStar:
605    BinaryOp = BO_PtrMemI;
606    return Stmt::BinaryOperatorClass;
607
608  case OO_Subscript:
609    return Stmt::ArraySubscriptExprClass;
610  }
611
612  llvm_unreachable("Invalid overloaded operator expression");
613}
614
615
616void StmtProfiler::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *S) {
617  if (S->isTypeDependent()) {
618    // Type-dependent operator calls are profiled like their underlying
619    // syntactic operator.
620    UnaryOperatorKind UnaryOp = UO_Extension;
621    BinaryOperatorKind BinaryOp = BO_Comma;
622    Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
623
624    ID.AddInteger(SC);
625    for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
626      Visit(S->getArg(I));
627    if (SC == Stmt::UnaryOperatorClass)
628      ID.AddInteger(UnaryOp);
629    else if (SC == Stmt::BinaryOperatorClass ||
630             SC == Stmt::CompoundAssignOperatorClass)
631      ID.AddInteger(BinaryOp);
632    else
633      assert(SC == Stmt::ArraySubscriptExprClass);
634
635    return;
636  }
637
638  VisitCallExpr(S);
639  ID.AddInteger(S->getOperator());
640}
641
642void StmtProfiler::VisitCXXMemberCallExpr(CXXMemberCallExpr *S) {
643  VisitCallExpr(S);
644}
645
646void StmtProfiler::VisitCUDAKernelCallExpr(CUDAKernelCallExpr *S) {
647  VisitCallExpr(S);
648}
649
650void StmtProfiler::VisitCXXNamedCastExpr(CXXNamedCastExpr *S) {
651  VisitExplicitCastExpr(S);
652}
653
654void StmtProfiler::VisitCXXStaticCastExpr(CXXStaticCastExpr *S) {
655  VisitCXXNamedCastExpr(S);
656}
657
658void StmtProfiler::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *S) {
659  VisitCXXNamedCastExpr(S);
660}
661
662void StmtProfiler::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *S) {
663  VisitCXXNamedCastExpr(S);
664}
665
666void StmtProfiler::VisitCXXConstCastExpr(CXXConstCastExpr *S) {
667  VisitCXXNamedCastExpr(S);
668}
669
670void StmtProfiler::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *S) {
671  VisitExpr(S);
672  ID.AddBoolean(S->getValue());
673}
674
675void StmtProfiler::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *S) {
676  VisitExpr(S);
677}
678
679void StmtProfiler::VisitCXXTypeidExpr(CXXTypeidExpr *S) {
680  VisitExpr(S);
681  if (S->isTypeOperand())
682    VisitType(S->getTypeOperand());
683}
684
685void StmtProfiler::VisitCXXUuidofExpr(CXXUuidofExpr *S) {
686  VisitExpr(S);
687  if (S->isTypeOperand())
688    VisitType(S->getTypeOperand());
689}
690
691void StmtProfiler::VisitCXXThisExpr(CXXThisExpr *S) {
692  VisitExpr(S);
693}
694
695void StmtProfiler::VisitCXXThrowExpr(CXXThrowExpr *S) {
696  VisitExpr(S);
697}
698
699void StmtProfiler::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *S) {
700  VisitExpr(S);
701  VisitDecl(S->getParam());
702}
703
704void StmtProfiler::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *S) {
705  VisitExpr(S);
706  VisitDecl(
707         const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
708}
709
710void StmtProfiler::VisitCXXConstructExpr(CXXConstructExpr *S) {
711  VisitExpr(S);
712  VisitDecl(S->getConstructor());
713  ID.AddBoolean(S->isElidable());
714}
715
716void StmtProfiler::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *S) {
717  VisitExplicitCastExpr(S);
718}
719
720void StmtProfiler::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *S) {
721  VisitCXXConstructExpr(S);
722}
723
724void StmtProfiler::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *S) {
725  VisitExpr(S);
726}
727
728void StmtProfiler::VisitCXXDeleteExpr(CXXDeleteExpr *S) {
729  VisitExpr(S);
730  ID.AddBoolean(S->isGlobalDelete());
731  ID.AddBoolean(S->isArrayForm());
732  VisitDecl(S->getOperatorDelete());
733}
734
735
736void StmtProfiler::VisitCXXNewExpr(CXXNewExpr *S) {
737  VisitExpr(S);
738  VisitType(S->getAllocatedType());
739  VisitDecl(S->getOperatorNew());
740  VisitDecl(S->getOperatorDelete());
741  VisitDecl(S->getConstructor());
742  ID.AddBoolean(S->isArray());
743  ID.AddInteger(S->getNumPlacementArgs());
744  ID.AddBoolean(S->isGlobalNew());
745  ID.AddBoolean(S->isParenTypeId());
746  ID.AddBoolean(S->hasInitializer());
747  ID.AddInteger(S->getNumConstructorArgs());
748}
749
750void StmtProfiler::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *S) {
751  VisitExpr(S);
752  ID.AddBoolean(S->isArrow());
753  VisitNestedNameSpecifier(S->getQualifier());
754  VisitType(S->getDestroyedType());
755}
756
757void StmtProfiler::VisitOverloadExpr(OverloadExpr *S) {
758  VisitExpr(S);
759  VisitNestedNameSpecifier(S->getQualifier());
760  VisitName(S->getName());
761  ID.AddBoolean(S->hasExplicitTemplateArgs());
762  if (S->hasExplicitTemplateArgs())
763    VisitTemplateArguments(S->getExplicitTemplateArgs().getTemplateArgs(),
764                           S->getExplicitTemplateArgs().NumTemplateArgs);
765}
766
767void
768StmtProfiler::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *S) {
769  VisitOverloadExpr(S);
770}
771
772void StmtProfiler::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *S) {
773  VisitExpr(S);
774  ID.AddInteger(S->getTrait());
775  VisitType(S->getQueriedType());
776}
777
778void StmtProfiler::VisitBinaryTypeTraitExpr(BinaryTypeTraitExpr *S) {
779  VisitExpr(S);
780  ID.AddInteger(S->getTrait());
781  VisitType(S->getLhsType());
782  VisitType(S->getRhsType());
783}
784
785void
786StmtProfiler::VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *S) {
787  VisitExpr(S);
788  VisitName(S->getDeclName());
789  VisitNestedNameSpecifier(S->getQualifier());
790  ID.AddBoolean(S->hasExplicitTemplateArgs());
791  if (S->hasExplicitTemplateArgs())
792    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
793}
794
795void StmtProfiler::VisitExprWithCleanups(ExprWithCleanups *S) {
796  VisitExpr(S);
797}
798
799void
800StmtProfiler::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *S) {
801  VisitExpr(S);
802  VisitType(S->getTypeAsWritten());
803}
804
805void
806StmtProfiler::VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *S) {
807  ID.AddBoolean(S->isImplicitAccess());
808  if (!S->isImplicitAccess()) {
809    VisitExpr(S);
810    ID.AddBoolean(S->isArrow());
811  }
812  VisitNestedNameSpecifier(S->getQualifier());
813  VisitName(S->getMember());
814  ID.AddBoolean(S->hasExplicitTemplateArgs());
815  if (S->hasExplicitTemplateArgs())
816    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
817}
818
819void StmtProfiler::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *S) {
820  ID.AddBoolean(S->isImplicitAccess());
821  if (!S->isImplicitAccess()) {
822    VisitExpr(S);
823    ID.AddBoolean(S->isArrow());
824  }
825  VisitNestedNameSpecifier(S->getQualifier());
826  VisitName(S->getMemberName());
827  ID.AddBoolean(S->hasExplicitTemplateArgs());
828  if (S->hasExplicitTemplateArgs())
829    VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
830}
831
832void StmtProfiler::VisitCXXNoexceptExpr(CXXNoexceptExpr *S) {
833  VisitExpr(S);
834}
835
836void StmtProfiler::VisitPackExpansionExpr(PackExpansionExpr *S) {
837  VisitExpr(S);
838}
839
840void StmtProfiler::VisitSizeOfPackExpr(SizeOfPackExpr *S) {
841  VisitExpr(S);
842  VisitDecl(S->getPack());
843}
844
845void StmtProfiler::VisitSubstNonTypeTemplateParmPackExpr(
846                                         SubstNonTypeTemplateParmPackExpr *S) {
847  VisitExpr(S);
848  VisitDecl(S->getParameterPack());
849  VisitTemplateArgument(S->getArgumentPack());
850}
851
852void StmtProfiler::VisitOpaqueValueExpr(OpaqueValueExpr *E) {
853  VisitExpr(E);
854}
855
856void StmtProfiler::VisitObjCStringLiteral(ObjCStringLiteral *S) {
857  VisitExpr(S);
858}
859
860void StmtProfiler::VisitObjCEncodeExpr(ObjCEncodeExpr *S) {
861  VisitExpr(S);
862  VisitType(S->getEncodedType());
863}
864
865void StmtProfiler::VisitObjCSelectorExpr(ObjCSelectorExpr *S) {
866  VisitExpr(S);
867  VisitName(S->getSelector());
868}
869
870void StmtProfiler::VisitObjCProtocolExpr(ObjCProtocolExpr *S) {
871  VisitExpr(S);
872  VisitDecl(S->getProtocol());
873}
874
875void StmtProfiler::VisitObjCIvarRefExpr(ObjCIvarRefExpr *S) {
876  VisitExpr(S);
877  VisitDecl(S->getDecl());
878  ID.AddBoolean(S->isArrow());
879  ID.AddBoolean(S->isFreeIvar());
880}
881
882void StmtProfiler::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *S) {
883  VisitExpr(S);
884  if (S->isImplicitProperty()) {
885    VisitDecl(S->getImplicitPropertyGetter());
886    VisitDecl(S->getImplicitPropertySetter());
887  } else {
888    VisitDecl(S->getExplicitProperty());
889  }
890  if (S->isSuperReceiver()) {
891    ID.AddBoolean(S->isSuperReceiver());
892    VisitType(S->getSuperReceiverType());
893  }
894}
895
896void StmtProfiler::VisitObjCMessageExpr(ObjCMessageExpr *S) {
897  VisitExpr(S);
898  VisitName(S->getSelector());
899  VisitDecl(S->getMethodDecl());
900}
901
902void StmtProfiler::VisitObjCIsaExpr(ObjCIsaExpr *S) {
903  VisitExpr(S);
904  ID.AddBoolean(S->isArrow());
905}
906
907void StmtProfiler::VisitDecl(Decl *D) {
908  ID.AddInteger(D? D->getKind() : 0);
909
910  if (Canonical && D) {
911    if (NonTypeTemplateParmDecl *NTTP = dyn_cast<NonTypeTemplateParmDecl>(D)) {
912      ID.AddInteger(NTTP->getDepth());
913      ID.AddInteger(NTTP->getIndex());
914      ID.AddBoolean(NTTP->isParameterPack());
915      VisitType(NTTP->getType());
916      return;
917    }
918
919    if (ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
920      // The Itanium C++ ABI uses the type of a parameter when mangling
921      // expressions that involve function parameters, so we will use the
922      // parameter's type for establishing function parameter identity. That
923      // way, our definition of "equivalent" (per C++ [temp.over.link])
924      // matches the definition of "equivalent" used for name mangling.
925      VisitType(Parm->getType());
926      return;
927    }
928
929    if (TemplateTemplateParmDecl *TTP = dyn_cast<TemplateTemplateParmDecl>(D)) {
930      ID.AddInteger(TTP->getDepth());
931      ID.AddInteger(TTP->getIndex());
932      ID.AddBoolean(TTP->isParameterPack());
933      return;
934    }
935  }
936
937  ID.AddPointer(D? D->getCanonicalDecl() : 0);
938}
939
940void StmtProfiler::VisitType(QualType T) {
941  if (Canonical)
942    T = Context.getCanonicalType(T);
943
944  ID.AddPointer(T.getAsOpaquePtr());
945}
946
947void StmtProfiler::VisitName(DeclarationName Name) {
948  ID.AddPointer(Name.getAsOpaquePtr());
949}
950
951void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
952  if (Canonical)
953    NNS = Context.getCanonicalNestedNameSpecifier(NNS);
954  ID.AddPointer(NNS);
955}
956
957void StmtProfiler::VisitTemplateName(TemplateName Name) {
958  if (Canonical)
959    Name = Context.getCanonicalTemplateName(Name);
960
961  Name.Profile(ID);
962}
963
964void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
965                                          unsigned NumArgs) {
966  ID.AddInteger(NumArgs);
967  for (unsigned I = 0; I != NumArgs; ++I)
968    VisitTemplateArgument(Args[I].getArgument());
969}
970
971void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
972  // Mostly repetitive with TemplateArgument::Profile!
973  ID.AddInteger(Arg.getKind());
974  switch (Arg.getKind()) {
975  case TemplateArgument::Null:
976    break;
977
978  case TemplateArgument::Type:
979    VisitType(Arg.getAsType());
980    break;
981
982  case TemplateArgument::Template:
983  case TemplateArgument::TemplateExpansion:
984    VisitTemplateName(Arg.getAsTemplateOrTemplatePattern());
985    break;
986
987  case TemplateArgument::Declaration:
988    VisitDecl(Arg.getAsDecl());
989    break;
990
991  case TemplateArgument::Integral:
992    Arg.getAsIntegral()->Profile(ID);
993    VisitType(Arg.getIntegralType());
994    break;
995
996  case TemplateArgument::Expression:
997    Visit(Arg.getAsExpr());
998    break;
999
1000  case TemplateArgument::Pack:
1001    const TemplateArgument *Pack = Arg.pack_begin();
1002    for (unsigned i = 0, e = Arg.pack_size(); i != e; ++i)
1003      VisitTemplateArgument(Pack[i]);
1004    break;
1005  }
1006}
1007
1008void Stmt::Profile(llvm::FoldingSetNodeID &ID, const ASTContext &Context,
1009                   bool Canonical) {
1010  StmtProfiler Profiler(ID, Context, Canonical);
1011  Profiler.Visit(this);
1012}
1013