1//=- PHIEliminationUtils.h - Helper functions for PHI elimination -*- C++ -*-=//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef LLVM_LIB_CODEGEN_PHIELIMINATIONUTILS_H
10#define LLVM_LIB_CODEGEN_PHIELIMINATIONUTILS_H
11
12#include "llvm/CodeGen/MachineBasicBlock.h"
13
14namespace llvm {
15 /// findPHICopyInsertPoint - Find a safe place in MBB to insert a copy from
16 /// SrcReg when following the CFG edge to SuccMBB. This needs to be after
17 /// any def of SrcReg, but before any subsequent point where control flow
18 /// might jump out of the basic block.
19 MachineBasicBlock::iterator
20 findPHICopyInsertPoint(MachineBasicBlock* MBB, MachineBasicBlock* SuccMBB,
21 unsigned SrcReg);
22}
23
24#endif
25