StmtProfile.cpp revision efccbec93fa2bc73800857b0208b583cb3d68d78 
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"
23#include "llvm/Support/Compiler.h"
24using namespace clang;
25
26namespace {
27  class VISIBILITY_HIDDEN StmtProfiler : public StmtVisitor<StmtProfiler> {
28    llvm::FoldingSetNodeID &ID;
29    ASTContext &Context;
30    bool Canonical;
31
32  public:
33    StmtProfiler(llvm::FoldingSetNodeID &ID, ASTContext &Context,
34                 bool Canonical)
35      : ID(ID), Context(Context), Canonical(Canonical) { }
36
37    void VisitStmt(Stmt *S);
38
39#define STMT(Node, Base) void Visit##Node(Node *S);
40#include "clang/AST/StmtNodes.def"
41
42    /// \brief Visit a declaration that is referenced within an expression
43    /// or statement.
44    void VisitDecl(Decl *D);
45
46    /// \brief Visit a type that is referenced within an expression or
47    /// statement.
48    void VisitType(QualType T);
49
50    /// \brief Visit a name that occurs within an expression or statement.
51    void VisitName(DeclarationName Name);
52
53    /// \brief Visit a nested-name-specifier that occurs within an expression
54    /// or statement.
55    void VisitNestedNameSpecifier(NestedNameSpecifier *NNS);
56
57    /// \brief Visit a template name that occurs within an expression or
58    /// statement.
59    void VisitTemplateName(TemplateName Name);
60
61    /// \brief Visit template arguments that occur within an expression or
62    /// statement.
63    void VisitTemplateArguments(const TemplateArgument *Args, unsigned NumArgs);
64  };
65}
66
67void StmtProfiler::VisitStmt(Stmt *S) {
68  ID.AddInteger(S->getStmtClass());
69  for (Stmt::child_iterator C = S->child_begin(), CEnd = S->child_end();
70       C != CEnd; ++C)
71    Visit(*C);
72}
73
74void StmtProfiler::VisitDeclStmt(DeclStmt *S) {
75  VisitStmt(S);
76  for (DeclStmt::decl_iterator D = S->decl_begin(), DEnd = S->decl_end();
77       D != DEnd; ++D)
78    VisitDecl(*D);
79}
80
81void StmtProfiler::VisitNullStmt(NullStmt *S) {
82  VisitStmt(S);
83}
84
85void StmtProfiler::VisitCompoundStmt(CompoundStmt *S) {
86  VisitStmt(S);
87}
88
89void StmtProfiler::VisitSwitchCase(SwitchCase *S) {
90  VisitStmt(S);
91}
92
93void StmtProfiler::VisitCaseStmt(CaseStmt *S) {
94  VisitStmt(S);
95}
96
97void StmtProfiler::VisitDefaultStmt(DefaultStmt *S) {
98  VisitStmt(S);
99}
100
101void StmtProfiler::VisitLabelStmt(LabelStmt *S) {
102  VisitStmt(S);
103  VisitName(S->getID());
104}
105
106void StmtProfiler::VisitIfStmt(IfStmt *S) {
107  VisitStmt(S);
108}
109
110void StmtProfiler::VisitSwitchStmt(SwitchStmt *S) {
111  VisitStmt(S);
112}
113
114void StmtProfiler::VisitWhileStmt(WhileStmt *S) {
115  VisitStmt(S);
116}
117
118void StmtProfiler::VisitDoStmt(DoStmt *S) {
119  VisitStmt(S);
120}
121
122void StmtProfiler::VisitForStmt(ForStmt *S) {
123  VisitStmt(S);
124}
125
126void StmtProfiler::VisitGotoStmt(GotoStmt *S) {
127  VisitStmt(S);
128  VisitName(S->getLabel()->getID());
129}
130
131void StmtProfiler::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
132  VisitStmt(S);
133}
134
135void StmtProfiler::VisitContinueStmt(ContinueStmt *S) {
136  VisitStmt(S);
137}
138
139void StmtProfiler::VisitBreakStmt(BreakStmt *S) {
140  VisitStmt(S);
141}
142
143void StmtProfiler::VisitReturnStmt(ReturnStmt *S) {
144  VisitStmt(S);
145}
146
147void StmtProfiler::VisitAsmStmt(AsmStmt *S) {
148  VisitStmt(S);
149  ID.AddBoolean(S->isVolatile());
150  ID.AddBoolean(S->isSimple());
151  VisitStringLiteral(S->getAsmString());
152  ID.AddInteger(S->getNumOutputs());
153  for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
154    ID.AddString(S->getOutputName(I));
155    VisitStringLiteral(S->getOutputConstraintLiteral(I));
156  }
157  ID.AddInteger(S->getNumInputs());
158  for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
159    ID.AddString(S->getInputName(I));
160    VisitStringLiteral(S->getInputConstraintLiteral(I));
161  }
162  ID.AddInteger(S->getNumClobbers());
163  for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
164    VisitStringLiteral(S->getClobber(I));
165}
166
167void StmtProfiler::VisitCXXCatchStmt(CXXCatchStmt *S) {
168  VisitStmt(S);
169  VisitType(S->getCaughtType());
170}
171
172void StmtProfiler::VisitCXXTryStmt(CXXTryStmt *S) {
173  VisitStmt(S);
174}
175
176void StmtProfiler::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
177  VisitStmt(S);
178}
179
180void StmtProfiler::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
181  VisitStmt(S);
182  ID.AddBoolean(S->hasEllipsis());
183  if (S->getCatchParamDecl())
184    VisitType(S->getCatchParamDecl()->getType());
185}
186
187void StmtProfiler::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
188  VisitStmt(S);
189}
190
191void StmtProfiler::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
192  VisitStmt(S);
193}
194
195void StmtProfiler::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
196  VisitStmt(S);
197}
198
199void StmtProfiler::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
200  VisitStmt(S);
201}
202
203void StmtProfiler::VisitExpr(Expr *S) {
204  VisitStmt(S);
205}
206
207void StmtProfiler::VisitDeclRefExpr(DeclRefExpr *S) {
208  VisitExpr(S);
209  VisitDecl(S->getDecl());
210}
211
212void StmtProfiler::VisitPredefinedExpr(PredefinedExpr *S) {
213  VisitExpr(S);
214  ID.AddInteger(S->getIdentType());
215}
216
217void StmtProfiler::VisitIntegerLiteral(IntegerLiteral *S) {
218  VisitExpr(S);
219  S->getValue().Profile(ID);
220}
221
222void StmtProfiler::VisitCharacterLiteral(CharacterLiteral *S) {
223  VisitExpr(S);
224  ID.AddBoolean(S->isWide());
225  ID.AddInteger(S->getValue());
226}
227
228void StmtProfiler::VisitFloatingLiteral(FloatingLiteral *S) {
229  VisitExpr(S);
230  S->getValue().Profile(ID);
231  ID.AddBoolean(S->isExact());
232}
233
234void StmtProfiler::VisitImaginaryLiteral(ImaginaryLiteral *S) {
235  VisitExpr(S);
236}
237
238void StmtProfiler::VisitStringLiteral(StringLiteral *S) {
239  VisitExpr(S);
240  ID.AddString(S->getStrData(), S->getStrData() + S->getByteLength());
241  ID.AddBoolean(S->isWide());
242}
243
244void StmtProfiler::VisitParenExpr(ParenExpr *S) {
245  VisitExpr(S);
246}
247
248void StmtProfiler::VisitParenListExpr(ParenListExpr *S) {
249  VisitExpr(S);
250}
251
252void StmtProfiler::VisitUnaryOperator(UnaryOperator *S) {
253  VisitExpr(S);
254  ID.AddInteger(S->getOpcode());
255}
256
257void StmtProfiler::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *S) {
258  VisitExpr(S);
259  ID.AddBoolean(S->isSizeOf());
260  if (S->isArgumentType())
261    VisitType(S->getArgumentType());
262}
263
264void StmtProfiler::VisitArraySubscriptExpr(ArraySubscriptExpr *S) {
265  VisitExpr(S);
266}
267
268void StmtProfiler::VisitCallExpr(CallExpr *S) {
269  VisitExpr(S);
270}
271
272void StmtProfiler::VisitMemberExpr(MemberExpr *S) {
273  VisitExpr(S);
274  VisitDecl(S->getMemberDecl());
275  ID.AddBoolean(S->isArrow());
276}
277
278void StmtProfiler::VisitCompoundLiteralExpr(CompoundLiteralExpr *S) {
279  VisitExpr(S);
280  ID.AddBoolean(S->isFileScope());
281}
282
283void StmtProfiler::VisitCastExpr(CastExpr *S) {
284  VisitExpr(S);
285}
286
287void StmtProfiler::VisitImplicitCastExpr(ImplicitCastExpr *S) {
288  VisitCastExpr(S);
289  ID.AddBoolean(S->isLvalueCast());
290}
291
292void StmtProfiler::VisitExplicitCastExpr(ExplicitCastExpr *S) {
293  VisitCastExpr(S);
294  VisitType(S->getTypeAsWritten());
295}
296
297void StmtProfiler::VisitCStyleCastExpr(CStyleCastExpr *S) {
298  VisitExplicitCastExpr(S);
299}
300
301void StmtProfiler::VisitBinaryOperator(BinaryOperator *S) {
302  VisitExpr(S);
303  ID.AddInteger(S->getOpcode());
304}
305
306void StmtProfiler::VisitCompoundAssignOperator(CompoundAssignOperator *S) {
307  VisitBinaryOperator(S);
308}
309
310void StmtProfiler::VisitConditionalOperator(ConditionalOperator *S) {
311  VisitExpr(S);
312}
313
314void StmtProfiler::VisitAddrLabelExpr(AddrLabelExpr *S) {
315  VisitExpr(S);
316  VisitName(S->getLabel()->getID());
317}
318
319void StmtProfiler::VisitStmtExpr(StmtExpr *S) {
320  VisitExpr(S);
321}
322
323void StmtProfiler::VisitTypesCompatibleExpr(TypesCompatibleExpr *S) {
324  VisitExpr(S);
325  VisitType(S->getArgType1());
326  VisitType(S->getArgType2());
327}
328
329void StmtProfiler::VisitShuffleVectorExpr(ShuffleVectorExpr *S) {
330  VisitExpr(S);
331}
332
333void StmtProfiler::VisitChooseExpr(ChooseExpr *S) {
334  VisitExpr(S);
335}
336
337void StmtProfiler::VisitGNUNullExpr(GNUNullExpr *S) {
338  VisitExpr(S);
339}
340
341void StmtProfiler::VisitVAArgExpr(VAArgExpr *S) {
342  VisitExpr(S);
343}
344
345void StmtProfiler::VisitInitListExpr(InitListExpr *S) {
346  if (S->getSyntacticForm()) {
347    VisitInitListExpr(S->getSyntacticForm());
348    return;
349  }
350
351  VisitExpr(S);
352}
353
354void StmtProfiler::VisitDesignatedInitExpr(DesignatedInitExpr *S) {
355  VisitExpr(S);
356  ID.AddBoolean(S->usesGNUSyntax());
357  for (DesignatedInitExpr::designators_iterator D = S->designators_begin(),
358                                             DEnd = S->designators_end();
359       D != DEnd; ++D) {
360    if (D->isFieldDesignator()) {
361      ID.AddInteger(0);
362      VisitName(D->getFieldName());
363      continue;
364    }
365
366    if (D->isArrayDesignator()) {
367      ID.AddInteger(1);
368    } else {
369      assert(D->isArrayRangeDesignator());
370      ID.AddInteger(2);
371    }
372    ID.AddInteger(D->getFirstExprIndex());
373  }
374}
375
376void StmtProfiler::VisitImplicitValueInitExpr(ImplicitValueInitExpr *S) {
377  VisitExpr(S);
378}
379
380void StmtProfiler::VisitExtVectorElementExpr(ExtVectorElementExpr *S) {
381  VisitExpr(S);
382  VisitName(&S->getAccessor());
383}
384
385void StmtProfiler::VisitBlockExpr(BlockExpr *S) {
386  VisitExpr(S);
387  VisitDecl(S->getBlockDecl());
388}
389
390void StmtProfiler::VisitBlockDeclRefExpr(BlockDeclRefExpr *S) {
391  VisitExpr(S);
392  VisitDecl(S->getDecl());
393  ID.AddBoolean(S->isByRef());
394  ID.AddBoolean(S->isConstQualAdded());
395}
396
397void StmtProfiler::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *S) {
398  VisitCallExpr(S);
399  ID.AddInteger(S->getOperator());
400}
401
402void StmtProfiler::VisitCXXMemberCallExpr(CXXMemberCallExpr *S) {
403  VisitCallExpr(S);
404}
405
406void StmtProfiler::VisitCXXNamedCastExpr(CXXNamedCastExpr *S) {
407  VisitExplicitCastExpr(S);
408}
409
410void StmtProfiler::VisitCXXStaticCastExpr(CXXStaticCastExpr *S) {
411  VisitCXXNamedCastExpr(S);
412}
413
414void StmtProfiler::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *S) {
415  VisitCXXNamedCastExpr(S);
416}
417
418void StmtProfiler::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *S) {
419  VisitCXXNamedCastExpr(S);
420}
421
422void StmtProfiler::VisitCXXConstCastExpr(CXXConstCastExpr *S) {
423  VisitCXXNamedCastExpr(S);
424}
425
426void StmtProfiler::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *S) {
427  VisitExpr(S);
428  ID.AddBoolean(S->getValue());
429}
430
431void StmtProfiler::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *S) {
432  VisitExpr(S);
433}
434
435void StmtProfiler::VisitCXXTypeidExpr(CXXTypeidExpr *S) {
436  VisitExpr(S);
437  if (S->isTypeOperand())
438    VisitType(S->getTypeOperand());
439}
440
441void StmtProfiler::VisitCXXThisExpr(CXXThisExpr *S) {
442  VisitExpr(S);
443}
444
445void StmtProfiler::VisitCXXThrowExpr(CXXThrowExpr *S) {
446  VisitExpr(S);
447}
448
449void StmtProfiler::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *S) {
450  VisitExpr(S);
451  VisitDecl(S->getParam());
452}
453
454void StmtProfiler::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *S) {
455  VisitExpr(S);
456  VisitDecl(
457         const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
458}
459
460void StmtProfiler::VisitCXXConstructExpr(CXXConstructExpr *S) {
461  VisitExpr(S);
462  VisitDecl(S->getConstructor());
463  ID.AddBoolean(S->isElidable());
464}
465
466void StmtProfiler::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *S) {
467  VisitExplicitCastExpr(S);
468}
469
470void StmtProfiler::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *S) {
471  VisitCXXConstructExpr(S);
472}
473
474void StmtProfiler::VisitCXXZeroInitValueExpr(CXXZeroInitValueExpr *S) {
475  VisitExpr(S);
476}
477
478void StmtProfiler::VisitCXXConditionDeclExpr(CXXConditionDeclExpr *S) {
479  VisitDeclRefExpr(S);
480}
481
482void StmtProfiler::VisitCXXDeleteExpr(CXXDeleteExpr *S) {
483  VisitExpr(S);
484  ID.AddBoolean(S->isGlobalDelete());
485  ID.AddBoolean(S->isArrayForm());
486  VisitDecl(S->getOperatorDelete());
487}
488
489
490void StmtProfiler::VisitCXXNewExpr(CXXNewExpr *S) {
491  VisitExpr(S);
492  VisitType(S->getAllocatedType());
493  VisitDecl(S->getOperatorNew());
494  VisitDecl(S->getOperatorDelete());
495  VisitDecl(S->getConstructor());
496  ID.AddBoolean(S->isArray());
497  ID.AddInteger(S->getNumPlacementArgs());
498  ID.AddBoolean(S->isGlobalNew());
499  ID.AddBoolean(S->isParenTypeId());
500  ID.AddBoolean(S->hasInitializer());
501  ID.AddInteger(S->getNumConstructorArgs());
502}
503
504void
505StmtProfiler::VisitUnresolvedFunctionNameExpr(UnresolvedFunctionNameExpr *S) {
506  VisitExpr(S);
507  VisitName(S->getName());
508}
509
510void StmtProfiler::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *S) {
511  VisitExpr(S);
512  ID.AddInteger(S->getTrait());
513  VisitType(S->getQueriedType());
514}
515
516void StmtProfiler::VisitQualifiedDeclRefExpr(QualifiedDeclRefExpr *S) {
517  VisitDeclRefExpr(S);
518  VisitNestedNameSpecifier(S->getQualifier());
519}
520
521void StmtProfiler::VisitUnresolvedDeclRefExpr(UnresolvedDeclRefExpr *S) {
522  VisitExpr(S);
523  VisitName(S->getDeclName());
524  VisitNestedNameSpecifier(S->getQualifier());
525  ID.AddBoolean(S->isAddressOfOperand());
526}
527
528void StmtProfiler::VisitTemplateIdRefExpr(TemplateIdRefExpr *S) {
529  VisitExpr(S);
530  VisitNestedNameSpecifier(S->getQualifier());
531  VisitTemplateName(S->getTemplateName());
532  VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
533}
534
535void StmtProfiler::VisitCXXExprWithTemporaries(CXXExprWithTemporaries *S) {
536  VisitExpr(S);
537  ID.AddBoolean(S->shouldDestroyTemporaries());
538  for (unsigned I = 0, N = S->getNumTemporaries(); I != N; ++I)
539    VisitDecl(
540      const_cast<CXXDestructorDecl *>(S->getTemporary(I)->getDestructor()));
541}
542
543void
544StmtProfiler::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *S) {
545  VisitExpr(S);
546  VisitType(S->getTypeAsWritten());
547}
548
549void StmtProfiler::VisitCXXAdornedMemberExpr(CXXAdornedMemberExpr *S) {
550  VisitMemberExpr(S);
551  VisitNestedNameSpecifier(S->getQualifier());
552}
553
554void StmtProfiler::VisitCXXUnresolvedMemberExpr(CXXUnresolvedMemberExpr *S) {
555  VisitExpr(S);
556  ID.AddBoolean(S->isArrow());
557  VisitName(S->getMember());
558}
559
560void StmtProfiler::VisitObjCStringLiteral(ObjCStringLiteral *S) {
561  VisitExpr(S);
562}
563
564void StmtProfiler::VisitObjCEncodeExpr(ObjCEncodeExpr *S) {
565  VisitExpr(S);
566  VisitType(S->getEncodedType());
567}
568
569void StmtProfiler::VisitObjCSelectorExpr(ObjCSelectorExpr *S) {
570  VisitExpr(S);
571  VisitName(S->getSelector());
572}
573
574void StmtProfiler::VisitObjCProtocolExpr(ObjCProtocolExpr *S) {
575  VisitExpr(S);
576  VisitDecl(S->getProtocol());
577}
578
579void StmtProfiler::VisitObjCIvarRefExpr(ObjCIvarRefExpr *S) {
580  VisitExpr(S);
581  VisitDecl(S->getDecl());
582  ID.AddBoolean(S->isArrow());
583  ID.AddBoolean(S->isFreeIvar());
584}
585
586void StmtProfiler::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *S) {
587  VisitExpr(S);
588  VisitDecl(S->getProperty());
589}
590
591void StmtProfiler::VisitObjCImplicitSetterGetterRefExpr(
592                                  ObjCImplicitSetterGetterRefExpr *S) {
593  VisitExpr(S);
594  VisitDecl(S->getGetterMethod());
595  VisitDecl(S->getSetterMethod());
596  VisitDecl(S->getInterfaceDecl());
597}
598
599void StmtProfiler::VisitObjCMessageExpr(ObjCMessageExpr *S) {
600  VisitExpr(S);
601  VisitName(S->getSelector());
602  VisitDecl(S->getMethodDecl());
603}
604
605void StmtProfiler::VisitObjCSuperExpr(ObjCSuperExpr *S) {
606  VisitExpr(S);
607}
608
609void StmtProfiler::VisitObjCIsaExpr(ObjCIsaExpr *S) {
610  VisitExpr(S);
611  ID.AddBoolean(S->isArrow());
612}
613
614void StmtProfiler::VisitDecl(Decl *D) {
615  ID.AddInteger(D? D->getKind() : 0);
616
617  if (Canonical && D) {
618    if (NonTypeTemplateParmDecl *NTTP = dyn_cast<NonTypeTemplateParmDecl>(D)) {
619      ID.AddInteger(NTTP->getDepth());
620      ID.AddInteger(NTTP->getIndex());
621      VisitType(NTTP->getType());
622      return;
623    }
624
625    if (ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
626      // The Itanium C++ ABI uses the type of a parameter when mangling
627      // expressions that involve function parameters, so we will use the
628      // parameter's type for establishing function parameter identity. That
629      // way, our definition of "equivalent" (per C++ [temp.over.link])
630      // matches the definition of "equivalent" used for name mangling.
631      VisitType(Parm->getType());
632      return;
633    }
634
635    if (TemplateTemplateParmDecl *TTP = dyn_cast<TemplateTemplateParmDecl>(D)) {
636      ID.AddInteger(TTP->getDepth());
637      ID.AddInteger(TTP->getIndex());
638      return;
639    }
640
641    if (OverloadedFunctionDecl *Ovl = dyn_cast<OverloadedFunctionDecl>(D)) {
642      // The Itanium C++ ABI mangles references to a set of overloaded
643      // functions using just the function name, so we do the same here.
644      VisitName(Ovl->getDeclName());
645      return;
646    }
647  }
648
649  ID.AddPointer(D? D->getCanonicalDecl() : 0);
650}
651
652void StmtProfiler::VisitType(QualType T) {
653  if (Canonical)
654    T = Context.getCanonicalType(T);
655
656  ID.AddPointer(T.getAsOpaquePtr());
657}
658
659void StmtProfiler::VisitName(DeclarationName Name) {
660  ID.AddPointer(Name.getAsOpaquePtr());
661}
662
663void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
664  if (Canonical)
665    NNS = Context.getCanonicalNestedNameSpecifier(NNS);
666  ID.AddPointer(NNS);
667}
668
669void StmtProfiler::VisitTemplateName(TemplateName Name) {
670  if (Canonical)
671    Name = Context.getCanonicalTemplateName(Name);
672
673  Name.Profile(ID);
674}
675
676void StmtProfiler::VisitTemplateArguments(const TemplateArgument *Args,
677                                          unsigned NumArgs) {
678  ID.AddInteger(NumArgs);
679  for (unsigned I = 0; I != NumArgs; ++I) {
680    const TemplateArgument &Arg = Args[I];
681
682    // Mostly repetitive with TemplateArgument::Profile!
683    ID.AddInteger(Arg.getKind());
684    switch (Arg.getKind()) {
685      case TemplateArgument::Null:
686        break;
687
688      case TemplateArgument::Type:
689        VisitType(Arg.getAsType());
690        break;
691
692      case TemplateArgument::Declaration:
693        VisitDecl(Arg.getAsDecl());
694        break;
695
696      case TemplateArgument::Integral:
697        Arg.getAsIntegral()->Profile(ID);
698        VisitType(Arg.getIntegralType());
699        break;
700
701      case TemplateArgument::Expression:
702        Visit(Arg.getAsExpr());
703        break;
704
705      case TemplateArgument::Pack:
706        VisitTemplateArguments(Arg.pack_begin(), Arg.pack_size());
707        break;
708    }
709  }
710}
711
712void Stmt::Profile(llvm::FoldingSetNodeID &ID, ASTContext &Context,
713                   bool Canonical) {
714  StmtProfiler Profiler(ID, Context, Canonical);
715  Profiler.Visit(this);
716}
717