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      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 
     15 namespace 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