| //=- PHIEliminationUtils.h - Helper functions for PHI elimination -*- C++ -*-=// | |
| // | |
| // The LLVM Compiler Infrastructure | |
| // | |
| // This file is distributed under the University of Illinois Open Source | |
| // License. See LICENSE.TXT for details. | |
| // | |
| //===----------------------------------------------------------------------===// | |
| #ifndef LLVM_LIB_CODEGEN_PHIELIMINATIONUTILS_H | |
| #define LLVM_LIB_CODEGEN_PHIELIMINATIONUTILS_H | |
| #include "llvm/CodeGen/MachineBasicBlock.h" | |
| namespace llvm { | |
| /// findPHICopyInsertPoint - Find a safe place in MBB to insert a copy from | |
| /// SrcReg when following the CFG edge to SuccMBB. This needs to be after | |
| /// any def of SrcReg, but before any subsequent point where control flow | |
| /// might jump out of the basic block. | |
| MachineBasicBlock::iterator | |
| findPHICopyInsertPoint(MachineBasicBlock* MBB, MachineBasicBlock* SuccMBB, | |
| unsigned SrcReg); | |
| } | |
| #endif |