25 lines
972 B
C++
25 lines
972 B
C++
//=- PHIEliminationUtils.h - Helper functions for PHI elimination -*- C++ -*-=//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_CODEGEN_PHIELIMINATIONUTILS_H
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#define LLVM_LIB_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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