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diff --git a/contrib/llvm/lib/Target/Hexagon/HexagonSubtarget.h b/contrib/llvm/lib/Target/Hexagon/HexagonSubtarget.h
new file mode 100644
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+++ b/contrib/llvm/lib/Target/Hexagon/HexagonSubtarget.h
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+//===-- HexagonSubtarget.h - Define Subtarget for the Hexagon ---*- 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 Hexagon specific subclass of TargetSubtarget.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_HEXAGON_HEXAGONSUBTARGET_H
+#define LLVM_LIB_TARGET_HEXAGON_HEXAGONSUBTARGET_H
+
+#include "HexagonFrameLowering.h"
+#include "HexagonISelLowering.h"
+#include "HexagonInstrInfo.h"
+#include "HexagonSelectionDAGInfo.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
+#include <string>
+
+#define GET_SUBTARGETINFO_HEADER
+#include "HexagonGenSubtargetInfo.inc"
+
+#define Hexagon_SMALL_DATA_THRESHOLD 8
+#define Hexagon_SLOTS 4
+
+namespace llvm {
+
+class HexagonSubtarget : public HexagonGenSubtargetInfo {
+  virtual void anchor();
+
+  bool UseMemOps, UseHVXOps, UseHVXDblOps;
+  bool ModeIEEERndNear;
+
+public:
+  enum HexagonArchEnum {
+    V4, V5, V55, V60
+  };
+
+  HexagonArchEnum HexagonArchVersion;
+  /// True if the target should use Back-Skip-Back scheduling. This is the
+  /// default for V60.
+  bool UseBSBScheduling;
+
+private:
+  std::string CPUString;
+  HexagonInstrInfo InstrInfo;
+  HexagonTargetLowering TLInfo;
+  HexagonSelectionDAGInfo TSInfo;
+  HexagonFrameLowering FrameLowering;
+  InstrItineraryData InstrItins;
+  void initializeEnvironment();
+
+public:
+  HexagonSubtarget(const Triple &TT, StringRef CPU, StringRef FS,
+                   const TargetMachine &TM);
+
+  /// getInstrItins - Return the instruction itineraries based on subtarget
+  /// selection.
+  const InstrItineraryData *getInstrItineraryData() const override {
+    return &InstrItins;
+  }
+  const HexagonInstrInfo *getInstrInfo() const override { return &InstrInfo; }
+  const HexagonRegisterInfo *getRegisterInfo() const override {
+    return &InstrInfo.getRegisterInfo();
+  }
+  const HexagonTargetLowering *getTargetLowering() const override {
+    return &TLInfo;
+  }
+  const HexagonFrameLowering *getFrameLowering() const override {
+    return &FrameLowering;
+  }
+  const HexagonSelectionDAGInfo *getSelectionDAGInfo() const override {
+    return &TSInfo;
+  }
+
+  HexagonSubtarget &initializeSubtargetDependencies(StringRef CPU,
+                                                    StringRef FS);
+
+  /// ParseSubtargetFeatures - Parses features string setting specified
+  /// subtarget options.  Definition of function is auto generated by tblgen.
+  void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
+
+  bool useMemOps() const { return UseMemOps; }
+  bool hasV5TOps() const { return getHexagonArchVersion() >= V5; }
+  bool hasV5TOpsOnly() const { return getHexagonArchVersion() == V5; }
+  bool hasV55TOps() const { return getHexagonArchVersion() >= V55; }
+  bool hasV55TOpsOnly() const { return getHexagonArchVersion() == V55; }
+  bool hasV60TOps() const { return getHexagonArchVersion() >= V60; }
+  bool hasV60TOpsOnly() const { return getHexagonArchVersion() == V60; }
+  bool modeIEEERndNear() const { return ModeIEEERndNear; }
+  bool useHVXOps() const { return UseHVXOps; }
+  bool useHVXDblOps() const { return UseHVXOps && UseHVXDblOps; }
+  bool useHVXSglOps() const { return UseHVXOps && !UseHVXDblOps; }
+
+  bool useBSBScheduling() const { return UseBSBScheduling; }
+  bool enableMachineScheduler() const override;
+  // Always use the TargetLowering default scheduler.
+  // FIXME: This will use the vliw scheduler which is probably just hurting
+  // compiler time and will be removed eventually anyway.
+  bool enableMachineSchedDefaultSched() const override { return false; }
+
+  const std::string &getCPUString () const { return CPUString; }
+
+  // Threshold for small data section
+  unsigned getSmallDataThreshold() const {
+    return Hexagon_SMALL_DATA_THRESHOLD;
+  }
+  const HexagonArchEnum &getHexagonArchVersion() const {
+    return HexagonArchVersion;
+  }
+};
+
+} // end namespace llvm
+
+#endif