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a474685d06
function so that it can be shared with StrongPHIElimination. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120951 91177308-0d34-0410-b5e6-96231b3b80d8
26 lines
936 B
C++
26 lines
936 B
C++
//=- PHIEliminationUtils.h - Helper functions for PHI elimination *- C++ -*--=//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_PHIELIMINATIONUTILS_H
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#define LLVM_CODEGEN_PHIELIMINATIONUTILS_H
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#include "llvm/CodeGen/MachineBasicBlock.h"
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namespace llvm {
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/// findPHICopyInsertPoint - Find a safe place in MBB to insert a copy from
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/// SrcReg when following the CFG edge to SuccMBB. This needs to be after
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/// any def of SrcReg, but before any subsequent point where control flow
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/// might jump out of the basic block.
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MachineBasicBlock::iterator
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findPHICopyInsertPoint(MachineBasicBlock* MBB, MachineBasicBlock* SuccMBB,
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unsigned SrcReg);
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}
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#endif
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