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diff --git a/contrib/llvm/tools/clang/lib/CodeGen/CGVTables.h b/contrib/llvm/tools/clang/lib/CodeGen/CGVTables.h
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+++ b/contrib/llvm/tools/clang/lib/CodeGen/CGVTables.h
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+//===--- CGVTables.h - Emit LLVM Code for C++ vtables -----------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This contains code dealing with C++ code generation of virtual tables.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef CLANG_CODEGEN_CGVTABLE_H
+#define CLANG_CODEGEN_CGVTABLE_H
+
+#include "clang/AST/BaseSubobject.h"
+#include "clang/AST/CharUnits.h"
+#include "clang/AST/GlobalDecl.h"
+#include "clang/AST/VTableBuilder.h"
+#include "clang/Basic/ABI.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/IR/GlobalVariable.h"
+
+namespace clang {
+  class CXXRecordDecl;
+
+namespace CodeGen {
+  class CodeGenModule;
+
+class CodeGenVTables {
+  CodeGenModule &CGM;
+
+  // FIXME: Consider moving ItaniumVTContext and MicrosoftVTContext into
+  // respective CXXABI classes?
+  ItaniumVTableContext ItaniumVTContext;
+  OwningPtr<MicrosoftVTableContext> MicrosoftVTContext;
+  
+  /// VTableAddressPointsMapTy - Address points for a single vtable.
+  typedef llvm::DenseMap<BaseSubobject, uint64_t> VTableAddressPointsMapTy;
+
+  typedef std::pair<const CXXRecordDecl *, BaseSubobject> BaseSubobjectPairTy;
+  typedef llvm::DenseMap<BaseSubobjectPairTy, uint64_t> SubVTTIndiciesMapTy;
+  
+  /// SubVTTIndicies - Contains indices into the various sub-VTTs.
+  SubVTTIndiciesMapTy SubVTTIndicies;
+
+  typedef llvm::DenseMap<BaseSubobjectPairTy, uint64_t>
+    SecondaryVirtualPointerIndicesMapTy;
+
+  /// SecondaryVirtualPointerIndices - Contains the secondary virtual pointer
+  /// indices.
+  SecondaryVirtualPointerIndicesMapTy SecondaryVirtualPointerIndices;
+
+  /// emitThunk - Emit a single thunk.
+  void emitThunk(GlobalDecl GD, const ThunkInfo &Thunk, bool ForVTable);
+
+  /// maybeEmitThunkForVTable - Emit the given thunk for the vtable if needed by
+  /// the ABI.
+  void maybeEmitThunkForVTable(GlobalDecl GD, const ThunkInfo &Thunk);
+
+public:
+  /// CreateVTableInitializer - Create a vtable initializer for the given record
+  /// decl.
+  /// \param Components - The vtable components; this is really an array of
+  /// VTableComponents.
+  llvm::Constant *CreateVTableInitializer(const CXXRecordDecl *RD,
+                                          const VTableComponent *Components, 
+                                          unsigned NumComponents,
+                                const VTableLayout::VTableThunkTy *VTableThunks,
+                                          unsigned NumVTableThunks);
+
+  CodeGenVTables(CodeGenModule &CGM);
+
+  ItaniumVTableContext &getItaniumVTableContext() { return ItaniumVTContext; }
+
+  MicrosoftVTableContext &getMicrosoftVTableContext() {
+    return *MicrosoftVTContext.get();
+  }
+
+  /// getSubVTTIndex - Return the index of the sub-VTT for the base class of the
+  /// given record decl.
+  uint64_t getSubVTTIndex(const CXXRecordDecl *RD, BaseSubobject Base);
+  
+  /// getSecondaryVirtualPointerIndex - Return the index in the VTT where the
+  /// virtual pointer for the given subobject is located.
+  uint64_t getSecondaryVirtualPointerIndex(const CXXRecordDecl *RD,
+                                           BaseSubobject Base);
+
+  /// getAddressPoint - Get the address point of the given subobject in the
+  /// class decl.
+  uint64_t getAddressPoint(BaseSubobject Base, const CXXRecordDecl *RD);
+  
+  /// GenerateConstructionVTable - Generate a construction vtable for the given 
+  /// base subobject.
+  llvm::GlobalVariable *
+  GenerateConstructionVTable(const CXXRecordDecl *RD, const BaseSubobject &Base, 
+                             bool BaseIsVirtual, 
+                             llvm::GlobalVariable::LinkageTypes Linkage,
+                             VTableAddressPointsMapTy& AddressPoints);
+
+    
+  /// GetAddrOfVTable - Get the address of the VTT for the given record decl.
+  llvm::GlobalVariable *GetAddrOfVTT(const CXXRecordDecl *RD);
+
+  /// EmitVTTDefinition - Emit the definition of the given vtable.
+  void EmitVTTDefinition(llvm::GlobalVariable *VTT,
+                         llvm::GlobalVariable::LinkageTypes Linkage,
+                         const CXXRecordDecl *RD);
+
+  /// EmitThunks - Emit the associated thunks for the given global decl.
+  void EmitThunks(GlobalDecl GD);
+    
+  /// GenerateClassData - Generate all the class data required to be
+  /// generated upon definition of a KeyFunction.  This includes the
+  /// vtable, the RTTI data structure (if RTTI is enabled) and the VTT
+  /// (if the class has virtual bases).
+  void GenerateClassData(const CXXRecordDecl *RD);
+
+  bool isVTableExternal(const CXXRecordDecl *RD);
+};
+
+} // end namespace CodeGen
+} // end namespace clang
+#endif