1 //===---- StmtProfile.cpp - Profile implementation for Stmt ASTs ----------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file implements the Stmt::Profile method, which builds a unique bit
11 // representation that identifies a statement/expression.
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"
24 using namespace clang;
27 class VISIBILITY_HIDDEN StmtProfiler : public StmtVisitor<StmtProfiler> {
28 llvm::FoldingSetNodeID &ID;
33 StmtProfiler(llvm::FoldingSetNodeID &ID, ASTContext &Context,
35 : ID(ID), Context(Context), Canonical(Canonical) { }
37 void VisitStmt(Stmt *S);
39 #define STMT(Node, Base) void Visit##Node(Node *S);
40 #include "clang/AST/StmtNodes.def"
42 /// \brief Visit a declaration that is referenced within an expression
44 void VisitDecl(Decl *D);
46 /// \brief Visit a type that is referenced within an expression or
48 void VisitType(QualType T);
50 /// \brief Visit a name that occurs within an expression or statement.
51 void VisitName(DeclarationName Name);
53 /// \brief Visit a nested-name-specifier that occurs within an expression
55 void VisitNestedNameSpecifier(NestedNameSpecifier *NNS);
57 /// \brief Visit a template name that occurs within an expression or
59 void VisitTemplateName(TemplateName Name);
61 /// \brief Visit template arguments that occur within an expression or
63 void VisitTemplateArguments(const TemplateArgumentLoc *Args, unsigned NumArgs);
65 /// \brief Visit a single template argument.
66 void VisitTemplateArgument(const TemplateArgument &Arg);
70 void StmtProfiler::VisitStmt(Stmt *S) {
71 ID.AddInteger(S->getStmtClass());
72 for (Stmt::child_iterator C = S->child_begin(), CEnd = S->child_end();
77 void StmtProfiler::VisitDeclStmt(DeclStmt *S) {
79 for (DeclStmt::decl_iterator D = S->decl_begin(), DEnd = S->decl_end();
84 void StmtProfiler::VisitNullStmt(NullStmt *S) {
88 void StmtProfiler::VisitCompoundStmt(CompoundStmt *S) {
92 void StmtProfiler::VisitSwitchCase(SwitchCase *S) {
96 void StmtProfiler::VisitCaseStmt(CaseStmt *S) {
100 void StmtProfiler::VisitDefaultStmt(DefaultStmt *S) {
104 void StmtProfiler::VisitLabelStmt(LabelStmt *S) {
106 VisitName(S->getID());
109 void StmtProfiler::VisitIfStmt(IfStmt *S) {
113 void StmtProfiler::VisitSwitchStmt(SwitchStmt *S) {
117 void StmtProfiler::VisitWhileStmt(WhileStmt *S) {
121 void StmtProfiler::VisitDoStmt(DoStmt *S) {
125 void StmtProfiler::VisitForStmt(ForStmt *S) {
129 void StmtProfiler::VisitGotoStmt(GotoStmt *S) {
131 VisitName(S->getLabel()->getID());
134 void StmtProfiler::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
138 void StmtProfiler::VisitContinueStmt(ContinueStmt *S) {
142 void StmtProfiler::VisitBreakStmt(BreakStmt *S) {
146 void StmtProfiler::VisitReturnStmt(ReturnStmt *S) {
150 void StmtProfiler::VisitAsmStmt(AsmStmt *S) {
152 ID.AddBoolean(S->isVolatile());
153 ID.AddBoolean(S->isSimple());
154 VisitStringLiteral(S->getAsmString());
155 ID.AddInteger(S->getNumOutputs());
156 for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
157 ID.AddString(S->getOutputName(I));
158 VisitStringLiteral(S->getOutputConstraintLiteral(I));
160 ID.AddInteger(S->getNumInputs());
161 for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
162 ID.AddString(S->getInputName(I));
163 VisitStringLiteral(S->getInputConstraintLiteral(I));
165 ID.AddInteger(S->getNumClobbers());
166 for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
167 VisitStringLiteral(S->getClobber(I));
170 void StmtProfiler::VisitCXXCatchStmt(CXXCatchStmt *S) {
172 VisitType(S->getCaughtType());
175 void StmtProfiler::VisitCXXTryStmt(CXXTryStmt *S) {
179 void StmtProfiler::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
183 void StmtProfiler::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
185 ID.AddBoolean(S->hasEllipsis());
186 if (S->getCatchParamDecl())
187 VisitType(S->getCatchParamDecl()->getType());
190 void StmtProfiler::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
194 void StmtProfiler::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
198 void StmtProfiler::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
202 void StmtProfiler::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
206 void StmtProfiler::VisitExpr(Expr *S) {
210 void StmtProfiler::VisitDeclRefExpr(DeclRefExpr *S) {
212 VisitNestedNameSpecifier(S->getQualifier());
213 VisitDecl(S->getDecl());
214 VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
217 void StmtProfiler::VisitPredefinedExpr(PredefinedExpr *S) {
219 ID.AddInteger(S->getIdentType());
222 void StmtProfiler::VisitIntegerLiteral(IntegerLiteral *S) {
224 S->getValue().Profile(ID);
227 void StmtProfiler::VisitCharacterLiteral(CharacterLiteral *S) {
229 ID.AddBoolean(S->isWide());
230 ID.AddInteger(S->getValue());
233 void StmtProfiler::VisitFloatingLiteral(FloatingLiteral *S) {
235 S->getValue().Profile(ID);
236 ID.AddBoolean(S->isExact());
239 void StmtProfiler::VisitImaginaryLiteral(ImaginaryLiteral *S) {
243 void StmtProfiler::VisitStringLiteral(StringLiteral *S) {
245 ID.AddString(S->getString());
246 ID.AddBoolean(S->isWide());
249 void StmtProfiler::VisitParenExpr(ParenExpr *S) {
253 void StmtProfiler::VisitParenListExpr(ParenListExpr *S) {
257 void StmtProfiler::VisitUnaryOperator(UnaryOperator *S) {
259 ID.AddInteger(S->getOpcode());
262 void StmtProfiler::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *S) {
264 ID.AddBoolean(S->isSizeOf());
265 if (S->isArgumentType())
266 VisitType(S->getArgumentType());
269 void StmtProfiler::VisitArraySubscriptExpr(ArraySubscriptExpr *S) {
273 void StmtProfiler::VisitCallExpr(CallExpr *S) {
277 void StmtProfiler::VisitMemberExpr(MemberExpr *S) {
279 VisitDecl(S->getMemberDecl());
280 VisitNestedNameSpecifier(S->getQualifier());
281 ID.AddBoolean(S->isArrow());
284 void StmtProfiler::VisitCompoundLiteralExpr(CompoundLiteralExpr *S) {
286 ID.AddBoolean(S->isFileScope());
289 void StmtProfiler::VisitCastExpr(CastExpr *S) {
293 void StmtProfiler::VisitImplicitCastExpr(ImplicitCastExpr *S) {
295 ID.AddBoolean(S->isLvalueCast());
298 void StmtProfiler::VisitExplicitCastExpr(ExplicitCastExpr *S) {
300 VisitType(S->getTypeAsWritten());
303 void StmtProfiler::VisitCStyleCastExpr(CStyleCastExpr *S) {
304 VisitExplicitCastExpr(S);
307 void StmtProfiler::VisitBinaryOperator(BinaryOperator *S) {
309 ID.AddInteger(S->getOpcode());
312 void StmtProfiler::VisitCompoundAssignOperator(CompoundAssignOperator *S) {
313 VisitBinaryOperator(S);
316 void StmtProfiler::VisitConditionalOperator(ConditionalOperator *S) {
320 void StmtProfiler::VisitAddrLabelExpr(AddrLabelExpr *S) {
322 VisitName(S->getLabel()->getID());
325 void StmtProfiler::VisitStmtExpr(StmtExpr *S) {
329 void StmtProfiler::VisitTypesCompatibleExpr(TypesCompatibleExpr *S) {
331 VisitType(S->getArgType1());
332 VisitType(S->getArgType2());
335 void StmtProfiler::VisitShuffleVectorExpr(ShuffleVectorExpr *S) {
339 void StmtProfiler::VisitChooseExpr(ChooseExpr *S) {
343 void StmtProfiler::VisitGNUNullExpr(GNUNullExpr *S) {
347 void StmtProfiler::VisitVAArgExpr(VAArgExpr *S) {
351 void StmtProfiler::VisitInitListExpr(InitListExpr *S) {
352 if (S->getSyntacticForm()) {
353 VisitInitListExpr(S->getSyntacticForm());
360 void StmtProfiler::VisitDesignatedInitExpr(DesignatedInitExpr *S) {
362 ID.AddBoolean(S->usesGNUSyntax());
363 for (DesignatedInitExpr::designators_iterator D = S->designators_begin(),
364 DEnd = S->designators_end();
366 if (D->isFieldDesignator()) {
368 VisitName(D->getFieldName());
372 if (D->isArrayDesignator()) {
375 assert(D->isArrayRangeDesignator());
378 ID.AddInteger(D->getFirstExprIndex());
382 void StmtProfiler::VisitImplicitValueInitExpr(ImplicitValueInitExpr *S) {
386 void StmtProfiler::VisitExtVectorElementExpr(ExtVectorElementExpr *S) {
388 VisitName(&S->getAccessor());
391 void StmtProfiler::VisitBlockExpr(BlockExpr *S) {
393 VisitDecl(S->getBlockDecl());
396 void StmtProfiler::VisitBlockDeclRefExpr(BlockDeclRefExpr *S) {
398 VisitDecl(S->getDecl());
399 ID.AddBoolean(S->isByRef());
400 ID.AddBoolean(S->isConstQualAdded());
403 void StmtProfiler::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *S) {
405 ID.AddInteger(S->getOperator());
408 void StmtProfiler::VisitCXXMemberCallExpr(CXXMemberCallExpr *S) {
412 void StmtProfiler::VisitCXXNamedCastExpr(CXXNamedCastExpr *S) {
413 VisitExplicitCastExpr(S);
416 void StmtProfiler::VisitCXXStaticCastExpr(CXXStaticCastExpr *S) {
417 VisitCXXNamedCastExpr(S);
420 void StmtProfiler::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *S) {
421 VisitCXXNamedCastExpr(S);
424 void StmtProfiler::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *S) {
425 VisitCXXNamedCastExpr(S);
428 void StmtProfiler::VisitCXXConstCastExpr(CXXConstCastExpr *S) {
429 VisitCXXNamedCastExpr(S);
432 void StmtProfiler::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *S) {
434 ID.AddBoolean(S->getValue());
437 void StmtProfiler::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *S) {
441 void StmtProfiler::VisitCXXTypeidExpr(CXXTypeidExpr *S) {
443 if (S->isTypeOperand())
444 VisitType(S->getTypeOperand());
447 void StmtProfiler::VisitCXXThisExpr(CXXThisExpr *S) {
451 void StmtProfiler::VisitCXXThrowExpr(CXXThrowExpr *S) {
455 void StmtProfiler::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *S) {
457 VisitDecl(S->getParam());
460 void StmtProfiler::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *S) {
463 const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
466 void StmtProfiler::VisitCXXConstructExpr(CXXConstructExpr *S) {
468 VisitDecl(S->getConstructor());
469 ID.AddBoolean(S->isElidable());
472 void StmtProfiler::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *S) {
473 VisitExplicitCastExpr(S);
476 void StmtProfiler::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *S) {
477 VisitCXXConstructExpr(S);
480 void StmtProfiler::VisitCXXZeroInitValueExpr(CXXZeroInitValueExpr *S) {
484 void StmtProfiler::VisitCXXConditionDeclExpr(CXXConditionDeclExpr *S) {
488 void StmtProfiler::VisitCXXDeleteExpr(CXXDeleteExpr *S) {
490 ID.AddBoolean(S->isGlobalDelete());
491 ID.AddBoolean(S->isArrayForm());
492 VisitDecl(S->getOperatorDelete());
496 void StmtProfiler::VisitCXXNewExpr(CXXNewExpr *S) {
498 VisitType(S->getAllocatedType());
499 VisitDecl(S->getOperatorNew());
500 VisitDecl(S->getOperatorDelete());
501 VisitDecl(S->getConstructor());
502 ID.AddBoolean(S->isArray());
503 ID.AddInteger(S->getNumPlacementArgs());
504 ID.AddBoolean(S->isGlobalNew());
505 ID.AddBoolean(S->isParenTypeId());
506 ID.AddBoolean(S->hasInitializer());
507 ID.AddInteger(S->getNumConstructorArgs());
510 void StmtProfiler::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *S) {
512 ID.AddBoolean(S->isArrow());
513 VisitNestedNameSpecifier(S->getQualifier());
514 VisitType(S->getDestroyedType());
518 StmtProfiler::VisitUnresolvedFunctionNameExpr(UnresolvedFunctionNameExpr *S) {
520 VisitName(S->getName());
523 void StmtProfiler::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *S) {
525 ID.AddInteger(S->getTrait());
526 VisitType(S->getQueriedType());
529 void StmtProfiler::VisitUnresolvedDeclRefExpr(UnresolvedDeclRefExpr *S) {
531 VisitName(S->getDeclName());
532 VisitNestedNameSpecifier(S->getQualifier());
533 ID.AddBoolean(S->isAddressOfOperand());
536 void StmtProfiler::VisitTemplateIdRefExpr(TemplateIdRefExpr *S) {
538 VisitNestedNameSpecifier(S->getQualifier());
539 VisitTemplateName(S->getTemplateName());
540 VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
543 void StmtProfiler::VisitCXXExprWithTemporaries(CXXExprWithTemporaries *S) {
545 ID.AddBoolean(S->shouldDestroyTemporaries());
546 for (unsigned I = 0, N = S->getNumTemporaries(); I != N; ++I)
548 const_cast<CXXDestructorDecl *>(S->getTemporary(I)->getDestructor()));
552 StmtProfiler::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *S) {
554 VisitType(S->getTypeAsWritten());
557 void StmtProfiler::VisitCXXUnresolvedMemberExpr(CXXUnresolvedMemberExpr *S) {
559 ID.AddBoolean(S->isArrow());
560 VisitNestedNameSpecifier(S->getQualifier());
561 VisitName(S->getMember());
564 void StmtProfiler::VisitObjCStringLiteral(ObjCStringLiteral *S) {
568 void StmtProfiler::VisitObjCEncodeExpr(ObjCEncodeExpr *S) {
570 VisitType(S->getEncodedType());
573 void StmtProfiler::VisitObjCSelectorExpr(ObjCSelectorExpr *S) {
575 VisitName(S->getSelector());
578 void StmtProfiler::VisitObjCProtocolExpr(ObjCProtocolExpr *S) {
580 VisitDecl(S->getProtocol());
583 void StmtProfiler::VisitObjCIvarRefExpr(ObjCIvarRefExpr *S) {
585 VisitDecl(S->getDecl());
586 ID.AddBoolean(S->isArrow());
587 ID.AddBoolean(S->isFreeIvar());
590 void StmtProfiler::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *S) {
592 VisitDecl(S->getProperty());
595 void StmtProfiler::VisitObjCImplicitSetterGetterRefExpr(
596 ObjCImplicitSetterGetterRefExpr *S) {
598 VisitDecl(S->getGetterMethod());
599 VisitDecl(S->getSetterMethod());
600 VisitDecl(S->getInterfaceDecl());
603 void StmtProfiler::VisitObjCMessageExpr(ObjCMessageExpr *S) {
605 VisitName(S->getSelector());
606 VisitDecl(S->getMethodDecl());
609 void StmtProfiler::VisitObjCSuperExpr(ObjCSuperExpr *S) {
613 void StmtProfiler::VisitObjCIsaExpr(ObjCIsaExpr *S) {
615 ID.AddBoolean(S->isArrow());
618 void StmtProfiler::VisitDecl(Decl *D) {
619 ID.AddInteger(D? D->getKind() : 0);
621 if (Canonical && D) {
622 if (NonTypeTemplateParmDecl *NTTP = dyn_cast<NonTypeTemplateParmDecl>(D)) {
623 ID.AddInteger(NTTP->getDepth());
624 ID.AddInteger(NTTP->getIndex());
625 VisitType(NTTP->getType());
629 if (ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
630 // The Itanium C++ ABI uses the type of a parameter when mangling
631 // expressions that involve function parameters, so we will use the
632 // parameter's type for establishing function parameter identity. That
633 // way, our definition of "equivalent" (per C++ [temp.over.link])
634 // matches the definition of "equivalent" used for name mangling.
635 VisitType(Parm->getType());
639 if (TemplateTemplateParmDecl *TTP = dyn_cast<TemplateTemplateParmDecl>(D)) {
640 ID.AddInteger(TTP->getDepth());
641 ID.AddInteger(TTP->getIndex());
645 if (OverloadedFunctionDecl *Ovl = dyn_cast<OverloadedFunctionDecl>(D)) {
646 // The Itanium C++ ABI mangles references to a set of overloaded
647 // functions using just the function name, so we do the same here.
648 VisitName(Ovl->getDeclName());
653 ID.AddPointer(D? D->getCanonicalDecl() : 0);
656 void StmtProfiler::VisitType(QualType T) {
658 T = Context.getCanonicalType(T);
660 ID.AddPointer(T.getAsOpaquePtr());
663 void StmtProfiler::VisitName(DeclarationName Name) {
664 ID.AddPointer(Name.getAsOpaquePtr());
667 void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
669 NNS = Context.getCanonicalNestedNameSpecifier(NNS);
673 void StmtProfiler::VisitTemplateName(TemplateName Name) {
675 Name = Context.getCanonicalTemplateName(Name);
680 void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
682 ID.AddInteger(NumArgs);
683 for (unsigned I = 0; I != NumArgs; ++I)
684 VisitTemplateArgument(Args[I].getArgument());
687 void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
688 // Mostly repetitive with TemplateArgument::Profile!
689 ID.AddInteger(Arg.getKind());
690 switch (Arg.getKind()) {
691 case TemplateArgument::Null:
694 case TemplateArgument::Type:
695 VisitType(Arg.getAsType());
698 case TemplateArgument::Declaration:
699 VisitDecl(Arg.getAsDecl());
702 case TemplateArgument::Integral:
703 Arg.getAsIntegral()->Profile(ID);
704 VisitType(Arg.getIntegralType());
707 case TemplateArgument::Expression:
708 Visit(Arg.getAsExpr());
711 case TemplateArgument::Pack:
712 const TemplateArgument *Pack = Arg.pack_begin();
713 for (unsigned i = 0, e = Arg.pack_size(); i != e; ++i)
714 VisitTemplateArgument(Pack[i]);
719 void Stmt::Profile(llvm::FoldingSetNodeID &ID, ASTContext &Context,
721 StmtProfiler Profiler(ID, Context, Canonical);
722 Profiler.Visit(this);