1 //=- PHIEliminationUtils.h - Helper functions for PHI elimination -*- C++ -*-=//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef LLVM_LIB_CODEGEN_PHIELIMINATIONUTILS_H
11 #define LLVM_LIB_CODEGEN_PHIELIMINATIONUTILS_H
13 #include "llvm/CodeGen/MachineBasicBlock.h"
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,