--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/llvm/MC/MCInstrInfo.h	Thu Dec 12 13:56:28 2013 +0900
@@ -0,0 +1,62 @@
+//===-- llvm/MC/MCInstrInfo.h - Target Instruction 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 describes the target machine instruction set.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_MC_MCINSTRINFO_H
+#define LLVM_MC_MCINSTRINFO_H
+
+#include "llvm/MC/MCInstrDesc.h"
+#include <cassert>
+
+namespace llvm {
+
+//---------------------------------------------------------------------------
+///
+/// MCInstrInfo - Interface to description of machine instruction set
+///
+class MCInstrInfo {
+  const MCInstrDesc *Desc;          // Raw array to allow static init'n
+  const unsigned *InstrNameIndices; // Array for name indices in InstrNameData
+  const char *InstrNameData;        // Instruction name string pool
+  unsigned NumOpcodes;              // Number of entries in the desc array
+
+public:
+  /// InitMCInstrInfo - Initialize MCInstrInfo, called by TableGen
+  /// auto-generated routines. *DO NOT USE*.
+  void InitMCInstrInfo(const MCInstrDesc *D, const unsigned *NI, const char *ND,
+                       unsigned NO) {
+    Desc = D;
+    InstrNameIndices = NI;
+    InstrNameData = ND;
+    NumOpcodes = NO;
+  }
+
+  unsigned getNumOpcodes() const { return NumOpcodes; }
+
+  /// get - Return the machine instruction descriptor that corresponds to the
+  /// specified instruction opcode.
+  ///
+  const MCInstrDesc &get(unsigned Opcode) const {
+    assert(Opcode < NumOpcodes && "Invalid opcode!");
+    return Desc[Opcode];
+  }
+
+  /// getName - Returns the name for the instructions with the given opcode.
+  const char *getName(unsigned Opcode) const {
+    assert(Opcode < NumOpcodes && "Invalid opcode!");
+    return &InstrNameData[InstrNameIndices[Opcode]];
+  }
+};
+
+} // End llvm namespace
+
+#endif