58 lines · c
1//= LoongArchRegisterInfo.h - LoongArch Register Information Impl -*- 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-exception6//7//===----------------------------------------------------------------------===//8//9// This file contains the LoongArch implementation of the TargetRegisterInfo10// class.11//12//===----------------------------------------------------------------------===//13 14#ifndef LLVM_LIB_TARGET_LOONGARCH_LOONGARCHREGISTERINFO_H15#define LLVM_LIB_TARGET_LOONGARCH_LOONGARCHREGISTERINFO_H16 17#include "llvm/CodeGen/TargetRegisterInfo.h"18 19#define GET_REGINFO_HEADER20#include "LoongArchGenRegisterInfo.inc"21 22namespace llvm {23 24struct LoongArchRegisterInfo : public LoongArchGenRegisterInfo {25 26 LoongArchRegisterInfo(unsigned HwMode);27 28 const MCPhysReg *getCalleeSavedRegs(const MachineFunction *MF) const override;29 const uint32_t *getCallPreservedMask(const MachineFunction &MF,30 CallingConv::ID) const override;31 const uint32_t *getNoPreservedMask() const override;32 33 BitVector getReservedRegs(const MachineFunction &MF) const override;34 35 const TargetRegisterClass *36 getPointerRegClass(unsigned Kind = 0) const override {37 return &LoongArch::GPRRegClass;38 }39 40 bool eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,41 unsigned FIOperandNum,42 RegScavenger *RS = nullptr) const override;43 44 Register getFrameRegister(const MachineFunction &MF) const override;45 46 bool requiresRegisterScavenging(const MachineFunction &MF) const override {47 return true;48 }49 50 bool requiresFrameIndexScavenging(const MachineFunction &MF) const override {51 return true;52 }53 bool canRealignStack(const MachineFunction &MF) const override;54};55} // end namespace llvm56 57#endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHREGISTERINFO_H58