| //===-- SystemZInstrBuilder.h - Functions to aid building insts -*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt 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. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZINSTRBUILDER_H |
| #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZINSTRBUILDER_H |
| |
| #include "llvm/CodeGen/MachineFrameInfo.h" |
| #include "llvm/CodeGen/MachineInstrBuilder.h" |
| #include "llvm/CodeGen/MachineMemOperand.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.getObjectAlign(FI)); |
| return MIB.addFrameIndex(FI).addImm(Offset).addReg(0).addMemOperand(MMO); |
| } |
| |
| } // end namespace llvm |
| |
| #endif |