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