1//=- PHIEliminationUtils.h - Helper functions for PHI elimination -*- C++ -*-=//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef LLVM_CODEGEN_PHIELIMINATIONUTILS_H
11#define LLVM_CODEGEN_PHIELIMINATIONUTILS_H
12
13#include "llvm/CodeGen/MachineBasicBlock.h"
14
15namespace llvm {
16    /// findPHICopyInsertPoint - Find a safe place in MBB to insert a copy from
17    /// SrcReg when following the CFG edge to SuccMBB. This needs to be after
18    /// any def of SrcReg, but before any subsequent point where control flow
19    /// might jump out of the basic block.
20    MachineBasicBlock::iterator
21    findPHICopyInsertPoint(MachineBasicBlock* MBB, MachineBasicBlock* SuccMBB,
22                           unsigned SrcReg);
23}
24
25#endif
26