| 1 | //===-- SystemZInstrBuilder.h - Functions to aid building insts -*- 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 | // This file exposes functions that may be used with BuildMI from the |
| 10 | // MachineInstrBuilder.h file to handle SystemZ'isms in a clean way. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZINSTRBUILDER_H |
| 15 | #define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZINSTRBUILDER_H |
| 16 | |
| 17 | #include "llvm/CodeGen/MachineFrameInfo.h" |
| 18 | #include "llvm/CodeGen/MachineInstrBuilder.h" |
| 19 | #include "llvm/CodeGen/MachineMemOperand.h" |
| 20 | |
| 21 | namespace llvm { |
| 22 | |
| 23 | /// Add a BDX memory reference for frame object FI to MIB. |
| 24 | static inline const MachineInstrBuilder & |
| 25 | addFrameReference(const MachineInstrBuilder &MIB, int FI) { |
| 26 | MachineInstr *MI = MIB; |
| 27 | MachineFunction &MF = *MI->getParent()->getParent(); |
| 28 | MachineFrameInfo &MFFrame = MF.getFrameInfo(); |
| 29 | const MCInstrDesc &MCID = MI->getDesc(); |
| 30 | auto Flags = MachineMemOperand::MONone; |
| 31 | if (MCID.mayLoad()) |
| 32 | Flags |= MachineMemOperand::MOLoad; |
| 33 | if (MCID.mayStore()) |
| 34 | Flags |= MachineMemOperand::MOStore; |
| 35 | int64_t Offset = 0; |
| 36 | MachineMemOperand *MMO = MF.getMachineMemOperand( |
| 37 | PtrInfo: MachinePointerInfo::getFixedStack(MF, FI, Offset), F: Flags, |
| 38 | Size: MFFrame.getObjectSize(ObjectIdx: FI), BaseAlignment: MFFrame.getObjectAlign(ObjectIdx: FI)); |
| 39 | return MIB.addFrameIndex(Idx: FI).addImm(Val: Offset).addReg(RegNo: 0).addMemOperand(MMO); |
| 40 | } |
| 41 | |
| 42 | } // end namespace llvm |
| 43 | |
| 44 | #endif |
| 45 |