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diff --git a/contrib/llvm/lib/Target/X86/X86MachineFunctionInfo.h b/contrib/llvm/lib/Target/X86/X86MachineFunctionInfo.h
new file mode 100644
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+++ b/contrib/llvm/lib/Target/X86/X86MachineFunctionInfo.h
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+//====- X86MachineFuctionInfo.h - X86 machine function info -----*- C++ -*-===//
+// 
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+// 
+//===----------------------------------------------------------------------===//
+//
+// This file declares X86-specific per-machine-function information.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef X86MACHINEFUNCTIONINFO_H
+#define X86MACHINEFUNCTIONINFO_H
+
+#include "llvm/CodeGen/MachineFunction.h"
+
+namespace llvm {
+
+/// X86MachineFunctionInfo - This class is derived from MachineFunction and
+/// contains private X86 target-specific information for each MachineFunction.
+class X86MachineFunctionInfo : public MachineFunctionInfo {
+  /// ForceFramePointer - True if the function is required to use of frame
+  /// pointer for reasons other than it containing dynamic allocation or 
+  /// that FP eliminatation is turned off. For example, Cygwin main function
+  /// contains stack pointer re-alignment code which requires FP.
+  bool ForceFramePointer;
+
+  /// CalleeSavedFrameSize - Size of the callee-saved register portion of the
+  /// stack frame in bytes.
+  unsigned CalleeSavedFrameSize;
+
+  /// BytesToPopOnReturn - Number of bytes function pops on return (in addition
+  /// to the space used by the return address).
+  /// Used on windows platform for stdcall & fastcall name decoration
+  unsigned BytesToPopOnReturn;
+
+  /// ReturnAddrIndex - FrameIndex for return slot.
+  int ReturnAddrIndex;
+
+  /// TailCallReturnAddrDelta - The number of bytes by which return address
+  /// stack slot is moved as the result of tail call optimization.
+  int TailCallReturnAddrDelta;
+
+  /// SRetReturnReg - Some subtargets require that sret lowering includes
+  /// returning the value of the returned struct in a register. This field
+  /// holds the virtual register into which the sret argument is passed.
+  unsigned SRetReturnReg;
+
+  /// GlobalBaseReg - keeps track of the virtual register initialized for
+  /// use as the global base register. This is used for PIC in some PIC
+  /// relocation models.
+  unsigned GlobalBaseReg;
+
+  /// ReserveFP - whether the function should reserve the frame pointer
+  /// when allocating, even if there may not actually be a frame pointer used.
+  bool ReserveFP;
+
+  /// VarArgsFrameIndex - FrameIndex for start of varargs area.
+  int VarArgsFrameIndex;
+  /// RegSaveFrameIndex - X86-64 vararg func register save area.
+  int RegSaveFrameIndex;
+  /// VarArgsGPOffset - X86-64 vararg func int reg offset.
+  unsigned VarArgsGPOffset;
+  /// VarArgsFPOffset - X86-64 vararg func fp reg offset.
+  unsigned VarArgsFPOffset;
+
+public:
+  X86MachineFunctionInfo() : ForceFramePointer(false),
+                             CalleeSavedFrameSize(0),
+                             BytesToPopOnReturn(0),
+                             ReturnAddrIndex(0),
+                             TailCallReturnAddrDelta(0),
+                             SRetReturnReg(0),
+                             GlobalBaseReg(0),
+                             VarArgsFrameIndex(0),
+                             RegSaveFrameIndex(0),
+                             VarArgsGPOffset(0),
+                             VarArgsFPOffset(0) {}
+  
+  explicit X86MachineFunctionInfo(MachineFunction &MF)
+    : ForceFramePointer(false),
+      CalleeSavedFrameSize(0),
+      BytesToPopOnReturn(0),
+      ReturnAddrIndex(0),
+      TailCallReturnAddrDelta(0),
+      SRetReturnReg(0),
+      GlobalBaseReg(0),
+      ReserveFP(false),
+      VarArgsFrameIndex(0),
+      RegSaveFrameIndex(0),
+      VarArgsGPOffset(0),
+      VarArgsFPOffset(0) {}
+  
+  bool getForceFramePointer() const { return ForceFramePointer;} 
+  void setForceFramePointer(bool forceFP) { ForceFramePointer = forceFP; }
+
+  unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
+  void setCalleeSavedFrameSize(unsigned bytes) { CalleeSavedFrameSize = bytes; }
+
+  unsigned getBytesToPopOnReturn() const { return BytesToPopOnReturn; }
+  void setBytesToPopOnReturn (unsigned bytes) { BytesToPopOnReturn = bytes;}
+
+  int getRAIndex() const { return ReturnAddrIndex; }
+  void setRAIndex(int Index) { ReturnAddrIndex = Index; }
+
+  int getTCReturnAddrDelta() const { return TailCallReturnAddrDelta; }
+  void setTCReturnAddrDelta(int delta) {TailCallReturnAddrDelta = delta;}
+
+  unsigned getSRetReturnReg() const { return SRetReturnReg; }
+  void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
+
+  unsigned getGlobalBaseReg() const { return GlobalBaseReg; }
+  void setGlobalBaseReg(unsigned Reg) { GlobalBaseReg = Reg; }
+
+  bool getReserveFP() const { return ReserveFP; }
+  void setReserveFP(bool reserveFP) { ReserveFP = reserveFP; }
+
+  int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
+  void setVarArgsFrameIndex(int Idx) { VarArgsFrameIndex = Idx; }
+
+  int getRegSaveFrameIndex() const { return RegSaveFrameIndex; }
+  void setRegSaveFrameIndex(int Idx) { RegSaveFrameIndex = Idx; }
+
+  unsigned getVarArgsGPOffset() const { return VarArgsGPOffset; }
+  void setVarArgsGPOffset(unsigned Offset) { VarArgsGPOffset = Offset; }
+
+  unsigned getVarArgsFPOffset() const { return VarArgsFPOffset; }
+  void setVarArgsFPOffset(unsigned Offset) { VarArgsFPOffset = Offset; }
+};
+
+} // End llvm namespace
+
+#endif