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-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file contains the LoongArch implementation of the TargetRegisterInfo
10// class.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_LIB_TARGET_LOONGARCH_LOONGARCHREGISTERINFO_H
15#define LLVM_LIB_TARGET_LOONGARCH_LOONGARCHREGISTERINFO_H
16
17#include "llvm/CodeGen/TargetRegisterInfo.h"
18
19#define GET_REGINFO_HEADER
20#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(const MachineFunction &MF,
37 unsigned Kind = 0) const override {
38 return &LoongArch::GPRRegClass;
39 }
40
41 bool eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,
42 unsigned FIOperandNum,
43 RegScavenger *RS = nullptr) const override;
44
45 Register getFrameRegister(const MachineFunction &MF) const override;
46
47 bool requiresRegisterScavenging(const MachineFunction &MF) const override {
48 return true;
49 }
50
51 bool requiresFrameIndexScavenging(const MachineFunction &MF) const override {
52 return true;
53 }
54 bool canRealignStack(const MachineFunction &MF) const override;
55};
56} // end namespace llvm
57
58#endif // LLVM_LIB_TARGET_LOONGARCH_LOONGARCHREGISTERINFO_H
59