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diff --git a/contrib/llvm/lib/Target/X86/X86Subtarget.h b/contrib/llvm/lib/Target/X86/X86Subtarget.h
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+++ b/contrib/llvm/lib/Target/X86/X86Subtarget.h
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+//=====---- X86Subtarget.h - Define Subtarget for the X86 -----*- 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 the X86 specific subclass of TargetSubtarget.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef X86SUBTARGET_H
+#define X86SUBTARGET_H
+
+#include "llvm/Target/TargetSubtarget.h"
+#include <string>
+
+namespace llvm {
+class GlobalValue;
+class TargetMachine;
+
+/// PICStyles - The X86 backend supports a number of different styles of PIC.
+///
+namespace PICStyles {
+enum Style {
+  StubPIC,          // Used on i386-darwin in -fPIC mode.
+  StubDynamicNoPIC, // Used on i386-darwin in -mdynamic-no-pic mode.
+  GOT,              // Used on many 32-bit unices in -fPIC mode.
+  RIPRel,           // Used on X86-64 when not in -static mode.
+  None              // Set when in -static mode (not PIC or DynamicNoPIC mode).
+};
+}
+
+class X86Subtarget : public TargetSubtarget {
+protected:
+  enum X86SSEEnum {
+    NoMMXSSE, MMX, SSE1, SSE2, SSE3, SSSE3, SSE41, SSE42
+  };
+
+  enum X863DNowEnum {
+    NoThreeDNow, ThreeDNow, ThreeDNowA
+  };
+
+  /// PICStyle - Which PIC style to use
+  ///
+  PICStyles::Style PICStyle;
+
+  /// X86SSELevel - MMX, SSE1, SSE2, SSE3, SSSE3, SSE41, SSE42, or
+  /// none supported.
+  X86SSEEnum X86SSELevel;
+
+  /// X863DNowLevel - 3DNow or 3DNow Athlon, or none supported.
+  ///
+  X863DNowEnum X863DNowLevel;
+
+  /// HasCMov - True if this processor has conditional move instructions
+  /// (generally pentium pro+).
+  bool HasCMov;
+
+  /// HasX86_64 - True if the processor supports X86-64 instructions.
+  ///
+  bool HasX86_64;
+
+  /// HasSSE4A - True if the processor supports SSE4A instructions.
+  bool HasSSE4A;
+
+  /// HasAVX - Target has AVX instructions
+  bool HasAVX;
+
+  /// HasAES - Target has AES instructions
+  bool HasAES;
+
+  /// HasFMA3 - Target has 3-operand fused multiply-add
+  bool HasFMA3;
+
+  /// HasFMA4 - Target has 4-operand fused multiply-add
+  bool HasFMA4;
+
+  /// IsBTMemSlow - True if BT (bit test) of memory instructions are slow.
+  bool IsBTMemSlow;
+
+  /// IsUAMemFast - True if unaligned memory access is fast.
+  bool IsUAMemFast;
+
+  /// HasVectorUAMem - True if SIMD operations can have unaligned memory
+  /// operands. This may require setting a feature bit in the processor.
+  bool HasVectorUAMem;
+
+  /// DarwinVers - Nonzero if this is a darwin platform: the numeric
+  /// version of the platform, e.g. 8 = 10.4 (Tiger), 9 = 10.5 (Leopard), etc.
+  unsigned char DarwinVers; // Is any darwin-x86 platform.
+
+  /// stackAlignment - The minimum alignment known to hold of the stack frame on
+  /// entry to the function and which must be maintained by every function.
+  unsigned stackAlignment;
+
+  /// Max. memset / memcpy size that is turned into rep/movs, rep/stos ops.
+  ///
+  unsigned MaxInlineSizeThreshold;
+
+private:
+  /// Is64Bit - True if the processor supports 64-bit instructions and
+  /// pointer size is 64 bit.
+  bool Is64Bit;
+
+public:
+  enum {
+    isELF, isCygwin, isDarwin, isWindows, isMingw
+  } TargetType;
+
+  /// This constructor initializes the data members to match that
+  /// of the specified triple.
+  ///
+  X86Subtarget(const std::string &TT, const std::string &FS, bool is64Bit);
+
+  /// getStackAlignment - Returns the minimum alignment known to hold of the
+  /// stack frame on entry to the function and which must be maintained by every
+  /// function for this subtarget.
+  unsigned getStackAlignment() const { return stackAlignment; }
+
+  /// getMaxInlineSizeThreshold - Returns the maximum memset / memcpy size
+  /// that still makes it profitable to inline the call.
+  unsigned getMaxInlineSizeThreshold() const { return MaxInlineSizeThreshold; }
+
+  /// ParseSubtargetFeatures - Parses features string setting specified
+  /// subtarget options.  Definition of function is auto generated by tblgen.
+  std::string ParseSubtargetFeatures(const std::string &FS,
+                                     const std::string &CPU);
+
+  /// AutoDetectSubtargetFeatures - Auto-detect CPU features using CPUID
+  /// instruction.
+  void AutoDetectSubtargetFeatures();
+
+  bool is64Bit() const { return Is64Bit; }
+
+  PICStyles::Style getPICStyle() const { return PICStyle; }
+  void setPICStyle(PICStyles::Style Style)  { PICStyle = Style; }
+
+  bool hasCMov() const { return HasCMov; }
+  bool hasMMX() const { return X86SSELevel >= MMX; }
+  bool hasSSE1() const { return X86SSELevel >= SSE1; }
+  bool hasSSE2() const { return X86SSELevel >= SSE2; }
+  bool hasSSE3() const { return X86SSELevel >= SSE3; }
+  bool hasSSSE3() const { return X86SSELevel >= SSSE3; }
+  bool hasSSE41() const { return X86SSELevel >= SSE41; }
+  bool hasSSE42() const { return X86SSELevel >= SSE42; }
+  bool hasSSE4A() const { return HasSSE4A; }
+  bool has3DNow() const { return X863DNowLevel >= ThreeDNow; }
+  bool has3DNowA() const { return X863DNowLevel >= ThreeDNowA; }
+  bool hasAVX() const { return HasAVX; }
+  bool hasAES() const { return HasAES; }
+  bool hasFMA3() const { return HasFMA3; }
+  bool hasFMA4() const { return HasFMA4; }
+  bool isBTMemSlow() const { return IsBTMemSlow; }
+  bool isUnalignedMemAccessFast() const { return IsUAMemFast; }
+  bool hasVectorUAMem() const { return HasVectorUAMem; }
+
+  bool isTargetDarwin() const { return TargetType == isDarwin; }
+  bool isTargetELF() const { return TargetType == isELF; }
+
+  bool isTargetWindows() const { return TargetType == isWindows; }
+  bool isTargetMingw() const { return TargetType == isMingw; }
+  bool isTargetCygwin() const { return TargetType == isCygwin; }
+  bool isTargetCygMing() const {
+    return TargetType == isMingw || TargetType == isCygwin;
+  }
+
+  /// isTargetCOFF - Return true if this is any COFF/Windows target variant.
+  bool isTargetCOFF() const {
+    return TargetType == isMingw || TargetType == isCygwin ||
+           TargetType == isWindows;
+  }
+
+  bool isTargetWin64() const {
+    return Is64Bit && (TargetType == isMingw || TargetType == isWindows);
+  }
+
+  std::string getDataLayout() const {
+    const char *p;
+    if (is64Bit())
+      p = "e-p:64:64-s:64-f64:64:64-i64:64:64-f80:128:128-n8:16:32:64";
+    else if (isTargetDarwin())
+      p = "e-p:32:32-f64:32:64-i64:32:64-f80:128:128-n8:16:32";
+    else if (isTargetMingw() || isTargetWindows())
+      p = "e-p:32:32-f64:64:64-i64:64:64-f80:32:32-n8:16:32";
+    else
+      p = "e-p:32:32-f64:32:64-i64:32:64-f80:32:32-n8:16:32";
+
+    return std::string(p);
+  }
+
+  bool isPICStyleSet() const { return PICStyle != PICStyles::None; }
+  bool isPICStyleGOT() const { return PICStyle == PICStyles::GOT; }
+  bool isPICStyleRIPRel() const { return PICStyle == PICStyles::RIPRel; }
+
+  bool isPICStyleStubPIC() const {
+    return PICStyle == PICStyles::StubPIC;
+  }
+
+  bool isPICStyleStubNoDynamic() const {
+    return PICStyle == PICStyles::StubDynamicNoPIC;
+  }
+  bool isPICStyleStubAny() const {
+    return PICStyle == PICStyles::StubDynamicNoPIC ||
+           PICStyle == PICStyles::StubPIC; }
+
+  /// getDarwinVers - Return the darwin version number, 8 = Tiger, 9 = Leopard,
+  /// 10 = Snow Leopard, etc.
+  unsigned getDarwinVers() const { return DarwinVers; }
+
+  /// ClassifyGlobalReference - Classify a global variable reference for the
+  /// current subtarget according to how we should reference it in a non-pcrel
+  /// context.
+  unsigned char ClassifyGlobalReference(const GlobalValue *GV,
+                                        const TargetMachine &TM)const;
+
+  /// ClassifyBlockAddressReference - Classify a blockaddress reference for the
+  /// current subtarget according to how we should reference it in a non-pcrel
+  /// context.
+  unsigned char ClassifyBlockAddressReference() const;
+
+  /// IsLegalToCallImmediateAddr - Return true if the subtarget allows calls
+  /// to immediate address.
+  bool IsLegalToCallImmediateAddr(const TargetMachine &TM) const;
+
+  /// This function returns the name of a function which has an interface
+  /// like the non-standard bzero function, if such a function exists on
+  /// the current subtarget and it is considered prefereable over
+  /// memset with zero passed as the second argument. Otherwise it
+  /// returns null.
+  const char *getBZeroEntry() const;
+
+  /// getSpecialAddressLatency - For targets where it is beneficial to
+  /// backschedule instructions that compute addresses, return a value
+  /// indicating the number of scheduling cycles of backscheduling that
+  /// should be attempted.
+  unsigned getSpecialAddressLatency() const;
+};
+
+} // End llvm namespace
+
+#endif