Check in LLVM r95781.
diff --git a/lib/AST/StmtProfile.cpp b/lib/AST/StmtProfile.cpp
new file mode 100644
index 0000000..3a19ec2
--- /dev/null
+++ b/lib/AST/StmtProfile.cpp
@@ -0,0 +1,741 @@
+//===---- StmtProfile.cpp - Profile implementation for Stmt ASTs ----------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the Stmt::Profile method, which builds a unique bit
+// representation that identifies a statement/expression.
+//
+//===----------------------------------------------------------------------===//
+#include "clang/AST/ASTContext.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclObjC.h"
+#include "clang/AST/DeclTemplate.h"
+#include "clang/AST/Expr.h"
+#include "clang/AST/ExprCXX.h"
+#include "clang/AST/ExprObjC.h"
+#include "clang/AST/StmtVisitor.h"
+#include "llvm/ADT/FoldingSet.h"
+using namespace clang;
+
+namespace {
+ class StmtProfiler : public StmtVisitor<StmtProfiler> {
+ llvm::FoldingSetNodeID &ID;
+ ASTContext &Context;
+ bool Canonical;
+
+ public:
+ StmtProfiler(llvm::FoldingSetNodeID &ID, ASTContext &Context,
+ bool Canonical)
+ : ID(ID), Context(Context), Canonical(Canonical) { }
+
+ void VisitStmt(Stmt *S);
+
+#define STMT(Node, Base) void Visit##Node(Node *S);
+#include "clang/AST/StmtNodes.def"
+
+ /// \brief Visit a declaration that is referenced within an expression
+ /// or statement.
+ void VisitDecl(Decl *D);
+
+ /// \brief Visit a type that is referenced within an expression or
+ /// statement.
+ void VisitType(QualType T);
+
+ /// \brief Visit a name that occurs within an expression or statement.
+ void VisitName(DeclarationName Name);
+
+ /// \brief Visit a nested-name-specifier that occurs within an expression
+ /// or statement.
+ void VisitNestedNameSpecifier(NestedNameSpecifier *NNS);
+
+ /// \brief Visit a template name that occurs within an expression or
+ /// statement.
+ void VisitTemplateName(TemplateName Name);
+
+ /// \brief Visit template arguments that occur within an expression or
+ /// statement.
+ void VisitTemplateArguments(const TemplateArgumentLoc *Args, unsigned NumArgs);
+
+ /// \brief Visit a single template argument.
+ void VisitTemplateArgument(const TemplateArgument &Arg);
+ };
+}
+
+void StmtProfiler::VisitStmt(Stmt *S) {
+ ID.AddInteger(S->getStmtClass());
+ for (Stmt::child_iterator C = S->child_begin(), CEnd = S->child_end();
+ C != CEnd; ++C)
+ Visit(*C);
+}
+
+void StmtProfiler::VisitDeclStmt(DeclStmt *S) {
+ VisitStmt(S);
+ for (DeclStmt::decl_iterator D = S->decl_begin(), DEnd = S->decl_end();
+ D != DEnd; ++D)
+ VisitDecl(*D);
+}
+
+void StmtProfiler::VisitNullStmt(NullStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitCompoundStmt(CompoundStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitSwitchCase(SwitchCase *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitCaseStmt(CaseStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitDefaultStmt(DefaultStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitLabelStmt(LabelStmt *S) {
+ VisitStmt(S);
+ VisitName(S->getID());
+}
+
+void StmtProfiler::VisitIfStmt(IfStmt *S) {
+ VisitStmt(S);
+ VisitDecl(S->getConditionVariable());
+}
+
+void StmtProfiler::VisitSwitchStmt(SwitchStmt *S) {
+ VisitStmt(S);
+ VisitDecl(S->getConditionVariable());
+}
+
+void StmtProfiler::VisitWhileStmt(WhileStmt *S) {
+ VisitStmt(S);
+ VisitDecl(S->getConditionVariable());
+}
+
+void StmtProfiler::VisitDoStmt(DoStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitForStmt(ForStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitGotoStmt(GotoStmt *S) {
+ VisitStmt(S);
+ VisitName(S->getLabel()->getID());
+}
+
+void StmtProfiler::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitContinueStmt(ContinueStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitBreakStmt(BreakStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitReturnStmt(ReturnStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitAsmStmt(AsmStmt *S) {
+ VisitStmt(S);
+ ID.AddBoolean(S->isVolatile());
+ ID.AddBoolean(S->isSimple());
+ VisitStringLiteral(S->getAsmString());
+ ID.AddInteger(S->getNumOutputs());
+ for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
+ ID.AddString(S->getOutputName(I));
+ VisitStringLiteral(S->getOutputConstraintLiteral(I));
+ }
+ ID.AddInteger(S->getNumInputs());
+ for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
+ ID.AddString(S->getInputName(I));
+ VisitStringLiteral(S->getInputConstraintLiteral(I));
+ }
+ ID.AddInteger(S->getNumClobbers());
+ for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
+ VisitStringLiteral(S->getClobber(I));
+}
+
+void StmtProfiler::VisitCXXCatchStmt(CXXCatchStmt *S) {
+ VisitStmt(S);
+ VisitType(S->getCaughtType());
+}
+
+void StmtProfiler::VisitCXXTryStmt(CXXTryStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
+ VisitStmt(S);
+ ID.AddBoolean(S->hasEllipsis());
+ if (S->getCatchParamDecl())
+ VisitType(S->getCatchParamDecl()->getType());
+}
+
+void StmtProfiler::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitExpr(Expr *S) {
+ VisitStmt(S);
+}
+
+void StmtProfiler::VisitDeclRefExpr(DeclRefExpr *S) {
+ VisitExpr(S);
+ VisitNestedNameSpecifier(S->getQualifier());
+ VisitDecl(S->getDecl());
+ VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
+}
+
+void StmtProfiler::VisitPredefinedExpr(PredefinedExpr *S) {
+ VisitExpr(S);
+ ID.AddInteger(S->getIdentType());
+}
+
+void StmtProfiler::VisitIntegerLiteral(IntegerLiteral *S) {
+ VisitExpr(S);
+ S->getValue().Profile(ID);
+}
+
+void StmtProfiler::VisitCharacterLiteral(CharacterLiteral *S) {
+ VisitExpr(S);
+ ID.AddBoolean(S->isWide());
+ ID.AddInteger(S->getValue());
+}
+
+void StmtProfiler::VisitFloatingLiteral(FloatingLiteral *S) {
+ VisitExpr(S);
+ S->getValue().Profile(ID);
+ ID.AddBoolean(S->isExact());
+}
+
+void StmtProfiler::VisitImaginaryLiteral(ImaginaryLiteral *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitStringLiteral(StringLiteral *S) {
+ VisitExpr(S);
+ ID.AddString(S->getString());
+ ID.AddBoolean(S->isWide());
+}
+
+void StmtProfiler::VisitParenExpr(ParenExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitParenListExpr(ParenListExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitUnaryOperator(UnaryOperator *S) {
+ VisitExpr(S);
+ ID.AddInteger(S->getOpcode());
+}
+
+void StmtProfiler::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *S) {
+ VisitExpr(S);
+ ID.AddBoolean(S->isSizeOf());
+ if (S->isArgumentType())
+ VisitType(S->getArgumentType());
+}
+
+void StmtProfiler::VisitArraySubscriptExpr(ArraySubscriptExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitCallExpr(CallExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitMemberExpr(MemberExpr *S) {
+ VisitExpr(S);
+ VisitDecl(S->getMemberDecl());
+ VisitNestedNameSpecifier(S->getQualifier());
+ ID.AddBoolean(S->isArrow());
+}
+
+void StmtProfiler::VisitCompoundLiteralExpr(CompoundLiteralExpr *S) {
+ VisitExpr(S);
+ ID.AddBoolean(S->isFileScope());
+}
+
+void StmtProfiler::VisitCastExpr(CastExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitImplicitCastExpr(ImplicitCastExpr *S) {
+ VisitCastExpr(S);
+ ID.AddBoolean(S->isLvalueCast());
+}
+
+void StmtProfiler::VisitExplicitCastExpr(ExplicitCastExpr *S) {
+ VisitCastExpr(S);
+ VisitType(S->getTypeAsWritten());
+}
+
+void StmtProfiler::VisitCStyleCastExpr(CStyleCastExpr *S) {
+ VisitExplicitCastExpr(S);
+}
+
+void StmtProfiler::VisitBinaryOperator(BinaryOperator *S) {
+ VisitExpr(S);
+ ID.AddInteger(S->getOpcode());
+}
+
+void StmtProfiler::VisitCompoundAssignOperator(CompoundAssignOperator *S) {
+ VisitBinaryOperator(S);
+}
+
+void StmtProfiler::VisitConditionalOperator(ConditionalOperator *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitAddrLabelExpr(AddrLabelExpr *S) {
+ VisitExpr(S);
+ VisitName(S->getLabel()->getID());
+}
+
+void StmtProfiler::VisitStmtExpr(StmtExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitTypesCompatibleExpr(TypesCompatibleExpr *S) {
+ VisitExpr(S);
+ VisitType(S->getArgType1());
+ VisitType(S->getArgType2());
+}
+
+void StmtProfiler::VisitShuffleVectorExpr(ShuffleVectorExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitChooseExpr(ChooseExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitGNUNullExpr(GNUNullExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitVAArgExpr(VAArgExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitInitListExpr(InitListExpr *S) {
+ if (S->getSyntacticForm()) {
+ VisitInitListExpr(S->getSyntacticForm());
+ return;
+ }
+
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitDesignatedInitExpr(DesignatedInitExpr *S) {
+ VisitExpr(S);
+ ID.AddBoolean(S->usesGNUSyntax());
+ for (DesignatedInitExpr::designators_iterator D = S->designators_begin(),
+ DEnd = S->designators_end();
+ D != DEnd; ++D) {
+ if (D->isFieldDesignator()) {
+ ID.AddInteger(0);
+ VisitName(D->getFieldName());
+ continue;
+ }
+
+ if (D->isArrayDesignator()) {
+ ID.AddInteger(1);
+ } else {
+ assert(D->isArrayRangeDesignator());
+ ID.AddInteger(2);
+ }
+ ID.AddInteger(D->getFirstExprIndex());
+ }
+}
+
+void StmtProfiler::VisitImplicitValueInitExpr(ImplicitValueInitExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitExtVectorElementExpr(ExtVectorElementExpr *S) {
+ VisitExpr(S);
+ VisitName(&S->getAccessor());
+}
+
+void StmtProfiler::VisitBlockExpr(BlockExpr *S) {
+ VisitExpr(S);
+ VisitDecl(S->getBlockDecl());
+}
+
+void StmtProfiler::VisitBlockDeclRefExpr(BlockDeclRefExpr *S) {
+ VisitExpr(S);
+ VisitDecl(S->getDecl());
+ ID.AddBoolean(S->isByRef());
+ ID.AddBoolean(S->isConstQualAdded());
+}
+
+void StmtProfiler::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *S) {
+ VisitCallExpr(S);
+ ID.AddInteger(S->getOperator());
+}
+
+void StmtProfiler::VisitCXXMemberCallExpr(CXXMemberCallExpr *S) {
+ VisitCallExpr(S);
+}
+
+void StmtProfiler::VisitCXXNamedCastExpr(CXXNamedCastExpr *S) {
+ VisitExplicitCastExpr(S);
+}
+
+void StmtProfiler::VisitCXXStaticCastExpr(CXXStaticCastExpr *S) {
+ VisitCXXNamedCastExpr(S);
+}
+
+void StmtProfiler::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *S) {
+ VisitCXXNamedCastExpr(S);
+}
+
+void StmtProfiler::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *S) {
+ VisitCXXNamedCastExpr(S);
+}
+
+void StmtProfiler::VisitCXXConstCastExpr(CXXConstCastExpr *S) {
+ VisitCXXNamedCastExpr(S);
+}
+
+void StmtProfiler::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *S) {
+ VisitExpr(S);
+ ID.AddBoolean(S->getValue());
+}
+
+void StmtProfiler::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitCXXTypeidExpr(CXXTypeidExpr *S) {
+ VisitExpr(S);
+ if (S->isTypeOperand())
+ VisitType(S->getTypeOperand());
+}
+
+void StmtProfiler::VisitCXXThisExpr(CXXThisExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitCXXThrowExpr(CXXThrowExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *S) {
+ VisitExpr(S);
+ VisitDecl(S->getParam());
+}
+
+void StmtProfiler::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *S) {
+ VisitExpr(S);
+ VisitDecl(
+ const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
+}
+
+void StmtProfiler::VisitCXXBindReferenceExpr(CXXBindReferenceExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitCXXConstructExpr(CXXConstructExpr *S) {
+ VisitExpr(S);
+ VisitDecl(S->getConstructor());
+ ID.AddBoolean(S->isElidable());
+}
+
+void StmtProfiler::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *S) {
+ VisitExplicitCastExpr(S);
+}
+
+void StmtProfiler::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *S) {
+ VisitCXXConstructExpr(S);
+}
+
+void StmtProfiler::VisitCXXZeroInitValueExpr(CXXZeroInitValueExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitCXXDeleteExpr(CXXDeleteExpr *S) {
+ VisitExpr(S);
+ ID.AddBoolean(S->isGlobalDelete());
+ ID.AddBoolean(S->isArrayForm());
+ VisitDecl(S->getOperatorDelete());
+}
+
+
+void StmtProfiler::VisitCXXNewExpr(CXXNewExpr *S) {
+ VisitExpr(S);
+ VisitType(S->getAllocatedType());
+ VisitDecl(S->getOperatorNew());
+ VisitDecl(S->getOperatorDelete());
+ VisitDecl(S->getConstructor());
+ ID.AddBoolean(S->isArray());
+ ID.AddInteger(S->getNumPlacementArgs());
+ ID.AddBoolean(S->isGlobalNew());
+ ID.AddBoolean(S->isParenTypeId());
+ ID.AddBoolean(S->hasInitializer());
+ ID.AddInteger(S->getNumConstructorArgs());
+}
+
+void StmtProfiler::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *S) {
+ VisitExpr(S);
+ ID.AddBoolean(S->isArrow());
+ VisitNestedNameSpecifier(S->getQualifier());
+ VisitType(S->getDestroyedType());
+}
+
+void
+StmtProfiler::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *S) {
+ VisitExpr(S);
+ VisitNestedNameSpecifier(S->getQualifier());
+ VisitName(S->getName());
+ ID.AddBoolean(S->hasExplicitTemplateArgs());
+ if (S->hasExplicitTemplateArgs())
+ VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
+}
+
+void StmtProfiler::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *S) {
+ VisitExpr(S);
+ ID.AddInteger(S->getTrait());
+ VisitType(S->getQueriedType());
+}
+
+void
+StmtProfiler::VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *S) {
+ VisitExpr(S);
+ VisitName(S->getDeclName());
+ VisitNestedNameSpecifier(S->getQualifier());
+ ID.AddBoolean(S->hasExplicitTemplateArgs());
+ if (S->hasExplicitTemplateArgs())
+ VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
+}
+
+void StmtProfiler::VisitCXXExprWithTemporaries(CXXExprWithTemporaries *S) {
+ VisitExpr(S);
+ for (unsigned I = 0, N = S->getNumTemporaries(); I != N; ++I)
+ VisitDecl(
+ const_cast<CXXDestructorDecl *>(S->getTemporary(I)->getDestructor()));
+}
+
+void
+StmtProfiler::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *S) {
+ VisitExpr(S);
+ VisitType(S->getTypeAsWritten());
+}
+
+void
+StmtProfiler::VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *S) {
+ ID.AddBoolean(S->isImplicitAccess());
+ if (!S->isImplicitAccess()) {
+ VisitExpr(S);
+ ID.AddBoolean(S->isArrow());
+ }
+ VisitNestedNameSpecifier(S->getQualifier());
+ VisitName(S->getMember());
+ ID.AddBoolean(S->hasExplicitTemplateArgs());
+ if (S->hasExplicitTemplateArgs())
+ VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
+}
+
+void StmtProfiler::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *S) {
+ ID.AddBoolean(S->isImplicitAccess());
+ if (!S->isImplicitAccess()) {
+ VisitExpr(S);
+ ID.AddBoolean(S->isArrow());
+ }
+ VisitNestedNameSpecifier(S->getQualifier());
+ VisitName(S->getMemberName());
+ ID.AddBoolean(S->hasExplicitTemplateArgs());
+ if (S->hasExplicitTemplateArgs())
+ VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
+}
+
+void StmtProfiler::VisitObjCStringLiteral(ObjCStringLiteral *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitObjCEncodeExpr(ObjCEncodeExpr *S) {
+ VisitExpr(S);
+ VisitType(S->getEncodedType());
+}
+
+void StmtProfiler::VisitObjCSelectorExpr(ObjCSelectorExpr *S) {
+ VisitExpr(S);
+ VisitName(S->getSelector());
+}
+
+void StmtProfiler::VisitObjCProtocolExpr(ObjCProtocolExpr *S) {
+ VisitExpr(S);
+ VisitDecl(S->getProtocol());
+}
+
+void StmtProfiler::VisitObjCIvarRefExpr(ObjCIvarRefExpr *S) {
+ VisitExpr(S);
+ VisitDecl(S->getDecl());
+ ID.AddBoolean(S->isArrow());
+ ID.AddBoolean(S->isFreeIvar());
+}
+
+void StmtProfiler::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *S) {
+ VisitExpr(S);
+ VisitDecl(S->getProperty());
+}
+
+void StmtProfiler::VisitObjCImplicitSetterGetterRefExpr(
+ ObjCImplicitSetterGetterRefExpr *S) {
+ VisitExpr(S);
+ VisitDecl(S->getGetterMethod());
+ VisitDecl(S->getSetterMethod());
+ VisitDecl(S->getInterfaceDecl());
+}
+
+void StmtProfiler::VisitObjCMessageExpr(ObjCMessageExpr *S) {
+ VisitExpr(S);
+ VisitName(S->getSelector());
+ VisitDecl(S->getMethodDecl());
+}
+
+void StmtProfiler::VisitObjCSuperExpr(ObjCSuperExpr *S) {
+ VisitExpr(S);
+}
+
+void StmtProfiler::VisitObjCIsaExpr(ObjCIsaExpr *S) {
+ VisitExpr(S);
+ ID.AddBoolean(S->isArrow());
+}
+
+void StmtProfiler::VisitDecl(Decl *D) {
+ ID.AddInteger(D? D->getKind() : 0);
+
+ if (Canonical && D) {
+ if (NonTypeTemplateParmDecl *NTTP = dyn_cast<NonTypeTemplateParmDecl>(D)) {
+ ID.AddInteger(NTTP->getDepth());
+ ID.AddInteger(NTTP->getIndex());
+ VisitType(NTTP->getType());
+ return;
+ }
+
+ if (ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
+ // The Itanium C++ ABI uses the type of a parameter when mangling
+ // expressions that involve function parameters, so we will use the
+ // parameter's type for establishing function parameter identity. That
+ // way, our definition of "equivalent" (per C++ [temp.over.link])
+ // matches the definition of "equivalent" used for name mangling.
+ VisitType(Parm->getType());
+ return;
+ }
+
+ if (TemplateTemplateParmDecl *TTP = dyn_cast<TemplateTemplateParmDecl>(D)) {
+ ID.AddInteger(TTP->getDepth());
+ ID.AddInteger(TTP->getIndex());
+ return;
+ }
+ }
+
+ ID.AddPointer(D? D->getCanonicalDecl() : 0);
+}
+
+void StmtProfiler::VisitType(QualType T) {
+ if (Canonical)
+ T = Context.getCanonicalType(T);
+
+ ID.AddPointer(T.getAsOpaquePtr());
+}
+
+void StmtProfiler::VisitName(DeclarationName Name) {
+ ID.AddPointer(Name.getAsOpaquePtr());
+}
+
+void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
+ if (Canonical)
+ NNS = Context.getCanonicalNestedNameSpecifier(NNS);
+ ID.AddPointer(NNS);
+}
+
+void StmtProfiler::VisitTemplateName(TemplateName Name) {
+ if (Canonical)
+ Name = Context.getCanonicalTemplateName(Name);
+
+ Name.Profile(ID);
+}
+
+void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
+ unsigned NumArgs) {
+ ID.AddInteger(NumArgs);
+ for (unsigned I = 0; I != NumArgs; ++I)
+ VisitTemplateArgument(Args[I].getArgument());
+}
+
+void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
+ // Mostly repetitive with TemplateArgument::Profile!
+ ID.AddInteger(Arg.getKind());
+ switch (Arg.getKind()) {
+ case TemplateArgument::Null:
+ break;
+
+ case TemplateArgument::Type:
+ VisitType(Arg.getAsType());
+ break;
+
+ case TemplateArgument::Template:
+ VisitTemplateName(Arg.getAsTemplate());
+ break;
+
+ case TemplateArgument::Declaration:
+ VisitDecl(Arg.getAsDecl());
+ break;
+
+ case TemplateArgument::Integral:
+ Arg.getAsIntegral()->Profile(ID);
+ VisitType(Arg.getIntegralType());
+ break;
+
+ case TemplateArgument::Expression:
+ Visit(Arg.getAsExpr());
+ break;
+
+ case TemplateArgument::Pack:
+ const TemplateArgument *Pack = Arg.pack_begin();
+ for (unsigned i = 0, e = Arg.pack_size(); i != e; ++i)
+ VisitTemplateArgument(Pack[i]);
+ break;
+ }
+}
+
+void Stmt::Profile(llvm::FoldingSetNodeID &ID, ASTContext &Context,
+ bool Canonical) {
+ StmtProfiler Profiler(ID, Context, Canonical);
+ Profiler.Visit(this);
+}