Update clang to r84119.

1 files changed, 720 insertions, 0 deletions

diff --git a/lib/AST/StmtProfile.cpp b/lib/AST/StmtProfile.cpp
new file mode 100644
index 0000000..c4d42f6
--- /dev/null
+++ b/lib/AST/StmtProfile.cpp
@@ -0,0 +1,720 @@
+//===---- 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"
+#include "llvm/Support/Compiler.h"
+using namespace clang;
+
+namespace {
+  class VISIBILITY_HIDDEN 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 TemplateArgument *Args, unsigned NumArgs);
+  };
+}
+
+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);
+}
+
+void StmtProfiler::VisitSwitchStmt(SwitchStmt *S) {
+  VisitStmt(S);
+}
+
+void StmtProfiler::VisitWhileStmt(WhileStmt *S) {
+  VisitStmt(S);
+}
+
+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);
+  VisitDecl(S->getDecl());
+}
+
+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::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::VisitCXXConditionDeclExpr(CXXConditionDeclExpr *S) {
+  VisitDeclRefExpr(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::VisitUnresolvedFunctionNameExpr(UnresolvedFunctionNameExpr *S) {
+  VisitExpr(S);
+  VisitName(S->getName());
+}
+
+void StmtProfiler::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *S) {
+  VisitExpr(S);
+  ID.AddInteger(S->getTrait());
+  VisitType(S->getQueriedType());
+}
+
+void StmtProfiler::VisitQualifiedDeclRefExpr(QualifiedDeclRefExpr *S) {
+  VisitDeclRefExpr(S);
+  VisitNestedNameSpecifier(S->getQualifier());
+}
+
+void StmtProfiler::VisitUnresolvedDeclRefExpr(UnresolvedDeclRefExpr *S) {
+  VisitExpr(S);
+  VisitName(S->getDeclName());
+  VisitNestedNameSpecifier(S->getQualifier());
+  ID.AddBoolean(S->isAddressOfOperand());
+}
+
+void StmtProfiler::VisitTemplateIdRefExpr(TemplateIdRefExpr *S) {
+  VisitExpr(S);
+  VisitNestedNameSpecifier(S->getQualifier());
+  VisitTemplateName(S->getTemplateName());
+  VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
+}
+
+void StmtProfiler::VisitCXXExprWithTemporaries(CXXExprWithTemporaries *S) {
+  VisitExpr(S);
+  ID.AddBoolean(S->shouldDestroyTemporaries());
+  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::VisitCXXUnresolvedMemberExpr(CXXUnresolvedMemberExpr *S) {
+  VisitExpr(S);
+  ID.AddBoolean(S->isArrow());
+  VisitNestedNameSpecifier(S->getQualifier());
+  VisitName(S->getMember());
+}
+
+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;
+    }
+
+    if (OverloadedFunctionDecl *Ovl = dyn_cast<OverloadedFunctionDecl>(D)) {
+      // The Itanium C++ ABI mangles references to a set of overloaded
+      // functions using just the function name, so we do the same here.
+      VisitName(Ovl->getDeclName());
+      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 TemplateArgument *Args,
+                                          unsigned NumArgs) {
+  ID.AddInteger(NumArgs);
+  for (unsigned I = 0; I != NumArgs; ++I) {
+    const TemplateArgument &Arg = Args[I];
+
+    // 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::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:
+        VisitTemplateArguments(Arg.pack_begin(), Arg.pack_size());
+        break;
+    }
+  }
+}
+
+void Stmt::Profile(llvm::FoldingSetNodeID &ID, ASTContext &Context,
+                   bool Canonical) {
+  StmtProfiler Profiler(ID, Context, Canonical);
+  Profiler.Visit(this);
+}