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diff --git a/contrib/llvm/lib/Target/Hexagon/HexagonTargetTransformInfo.h b/contrib/llvm/lib/Target/Hexagon/HexagonTargetTransformInfo.h
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index 000000000000..71ae17a19e5f
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+++ b/contrib/llvm/lib/Target/Hexagon/HexagonTargetTransformInfo.h
@@ -0,0 +1,70 @@
+//===-- HexagonTargetTransformInfo.cpp - Hexagon specific TTI pass --------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+/// \file
+/// This file implements a TargetTransformInfo analysis pass specific to the
+/// Hexagon target machine. It uses the target's detailed information to provide
+/// more precise answers to certain TTI queries, while letting the target
+/// independent and default TTI implementations handle the rest.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_HEXAGON_HEXAGONTARGETTRANSFORMINFO_H
+#define LLVM_LIB_TARGET_HEXAGON_HEXAGONTARGETTRANSFORMINFO_H
+
+#include "Hexagon.h"
+#include "HexagonTargetMachine.h"
+#include "llvm/Analysis/TargetTransformInfo.h"
+#include "llvm/CodeGen/BasicTTIImpl.h"
+#include "llvm/Target/TargetLowering.h"
+
+namespace llvm {
+
+class HexagonTTIImpl : public BasicTTIImplBase<HexagonTTIImpl> {
+  typedef BasicTTIImplBase<HexagonTTIImpl> BaseT;
+  typedef TargetTransformInfo TTI;
+  friend BaseT;
+
+  const HexagonSubtarget *ST;
+  const HexagonTargetLowering *TLI;
+
+  const HexagonSubtarget *getST() const { return ST; }
+  const HexagonTargetLowering *getTLI() const { return TLI; }
+
+public:
+  explicit HexagonTTIImpl(const HexagonTargetMachine *TM, const Function &F)
+      : BaseT(TM, F.getParent()->getDataLayout()), ST(TM->getSubtargetImpl(F)),
+        TLI(ST->getTargetLowering()) {}
+
+  // Provide value semantics. MSVC requires that we spell all of these out.
+  HexagonTTIImpl(const HexagonTTIImpl &Arg)
+      : BaseT(static_cast<const BaseT &>(Arg)), ST(Arg.ST), TLI(Arg.TLI) {}
+  HexagonTTIImpl(HexagonTTIImpl &&Arg)
+      : BaseT(std::move(static_cast<BaseT &>(Arg))), ST(std::move(Arg.ST)),
+        TLI(std::move(Arg.TLI)) {}
+
+  /// \name Scalar TTI Implementations
+  /// @{
+
+  TTI::PopcntSupportKind getPopcntSupport(unsigned IntTyWidthInBit) const;
+
+  // The Hexagon target can unroll loops with run-time trip counts.
+  void getUnrollingPreferences(Loop *L, TTI::UnrollingPreferences &UP);
+
+  /// @}
+
+  /// \name Vector TTI Implementations
+  /// @{
+
+  unsigned getNumberOfRegisters(bool vector) const;
+
+  /// @}
+};
+
+} // end namespace llvm
+
+#endif