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diff --git a/lib/Target/Nios2/Nios2ISelLowering.h b/lib/Target/Nios2/Nios2ISelLowering.h
new file mode 100644
index 0000000000000..c3c8179054bb5
--- /dev/null
+++ b/lib/Target/Nios2/Nios2ISelLowering.h
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+//===-- Nios2ISelLowering.h - Nios2 DAG Lowering Interface ------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the interfaces that Nios2 uses to lower LLVM code into a
+// selection DAG.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIB_TARGET_NIOS2_NIOS2ISELLOWERING_H
+#define LLVM_LIB_TARGET_NIOS2_NIOS2ISELLOWERING_H
+
+#include "Nios2.h"
+#include "llvm/CodeGen/TargetLowering.h"
+
+namespace llvm {
+class Nios2Subtarget;
+
+namespace Nios2ISD {
+enum NodeType {
+  // Start the numbering from where ISD NodeType finishes.
+  FIRST_NUMBER = ISD::BUILTIN_OP_END,
+
+  // Get the Higher 16 bits from a 32-bit immediate
+  // No relation with Nios2 Hi register
+  Hi,
+  // Get the Lower 16 bits from a 32-bit immediate
+  // No relation with Nios2 Lo register
+  Lo,
+  // Return
+  Ret
+};
+}
+
+class Nios2TargetLowering : public TargetLowering {
+  const Nios2Subtarget *Subtarget;
+
+public:
+  Nios2TargetLowering(const TargetMachine &TM, const Nios2Subtarget &STI);
+
+  /// getTargetNodeName - This method returns the name of a target specific
+  //  DAG node.
+  const char *getTargetNodeName(unsigned Opcode) const override;
+
+  SDValue LowerFormalArguments(SDValue Chain, CallingConv::ID CallConv,
+                               bool IsVarArg,
+                               const SmallVectorImpl<ISD::InputArg> &Ins,
+                               const SDLoc &dl, SelectionDAG &DAG,
+                               SmallVectorImpl<SDValue> &InVals) const override;
+
+  SDValue LowerReturn(SDValue Chain, CallingConv::ID CallConv, bool isVarArg,
+                      const SmallVectorImpl<ISD::OutputArg> &Outs,
+                      const SmallVectorImpl<SDValue> &OutVals, const SDLoc &dl,
+                      SelectionDAG &DAG) const override;
+};
+} // end namespace llvm
+
+#endif // NIOS2_ISELLOWERING_H