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diff --git a/include/llvm/CodeGen/MachineInstrBundle.h b/include/llvm/CodeGen/MachineInstrBundle.h
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+//===-- CodeGen/MachineInstBundle.h - MI bundle utilities -------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file provide utility functions to manipulate machine instruction
+// bundles.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CODEGEN_MACHINEINSTRBUNDLE_H
+#define LLVM_CODEGEN_MACHINEINSTRBUNDLE_H
+
+#include "llvm/CodeGen/MachineBasicBlock.h"
+
+namespace llvm {
+
+/// FinalizeBundle - Finalize a machine instruction bundle which includes
+/// a sequence of instructions starting from FirstMI to LastMI (inclusive).
+/// This routine adds a BUNDLE instruction to represent the bundle, it adds
+/// IsInternalRead markers to MachineOperands which are defined inside the
+/// bundle, and it copies externally visible defs and uses to the BUNDLE
+/// instruction.
+void FinalizeBundle(MachineBasicBlock &MBB,
+ MachineBasicBlock::instr_iterator FirstMI,
+ MachineBasicBlock::instr_iterator LastMI);
+
+} // End llvm namespace
+
+#endif