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diff --git a/contrib/llvm/utils/TableGen/RegisterInfoEmitter.h b/contrib/llvm/utils/TableGen/RegisterInfoEmitter.h
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+++ b/contrib/llvm/utils/TableGen/RegisterInfoEmitter.h
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+//===- RegisterInfoEmitter.h - Generate a Register File Desc. ---*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This tablegen backend is responsible for emitting a description of a target
+// register file for a code generator.  It uses instances of the Register,
+// RegisterAliases, and RegisterClass classes to gather this information.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef REGISTER_INFO_EMITTER_H
+#define REGISTER_INFO_EMITTER_H
+
+#include "TableGenBackend.h"
+
+namespace llvm {
+
+class RegisterInfoEmitter : public TableGenBackend {
+  RecordKeeper &Records;
+public:
+  RegisterInfoEmitter(RecordKeeper &R) : Records(R) {}
+
+  // run - Output the register file description, returning true on failure.
+  void run(raw_ostream &o);
+
+  // runHeader - Emit a header fragment for the register info emitter.
+  void runHeader(raw_ostream &o);
+
+  // runEnums - Print out enum values for all of the registers.
+  void runEnums(raw_ostream &o);
+};
+
+} // End llvm namespace
+
+#endif