blob: ec7639e71f81918204c34e902966da4ab2feebc3 [file] [log] [blame]
//===-- SystemZInstrBuilder.h - Functions to aid building insts -*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// This file exposes functions that may be used with BuildMI from the
// MachineInstrBuilder.h file to handle SystemZ'isms in a clean way.
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/PseudoSourceValue.h"
namespace llvm {
/// Add a BDX memory reference for frame object FI to MIB.
static inline const MachineInstrBuilder &
addFrameReference(const MachineInstrBuilder &MIB, int FI) {
MachineInstr *MI = MIB;
MachineFunction &MF = *MI->getParent()->getParent();
MachineFrameInfo &MFFrame = MF.getFrameInfo();
const MCInstrDesc &MCID = MI->getDesc();
auto Flags = MachineMemOperand::MONone;
if (MCID.mayLoad())
Flags |= MachineMemOperand::MOLoad;
if (MCID.mayStore())
Flags |= MachineMemOperand::MOStore;
int64_t Offset = 0;
MachineMemOperand *MMO = MF.getMachineMemOperand(
MachinePointerInfo::getFixedStack(MF, FI, Offset), Flags,
MFFrame.getObjectSize(FI), MFFrame.getObjectAlignment(FI));
return MIB.addFrameIndex(FI).addImm(Offset).addReg(0).addMemOperand(MMO);
} // end namespace llvm