1//===-- Mips16RegisterInfo.h - Mips16 Register Information ------*- 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 Mips16 implementation of the TargetRegisterInfo class.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_MIPS_MIPS16REGISTERINFO_H
14#define LLVM_LIB_TARGET_MIPS_MIPS16REGISTERINFO_H
15
16#include "MipsRegisterInfo.h"
17
18namespace llvm {
19class Mips16InstrInfo;
20
21class Mips16RegisterInfo : public MipsRegisterInfo {
22public:
23  Mips16RegisterInfo();
24
25  bool requiresRegisterScavenging(const MachineFunction &MF) const override;
26
27  bool requiresFrameIndexScavenging(const MachineFunction &MF) const override;
28
29  bool useFPForScavengingIndex(const MachineFunction &MF) const override;
30
31  bool saveScavengerRegister(MachineBasicBlock &MBB,
32                                     MachineBasicBlock::iterator I,
33                                     MachineBasicBlock::iterator &UseMI,
34                                     const TargetRegisterClass *RC,
35                                     unsigned Reg) const override;
36
37  const TargetRegisterClass *intRegClass(unsigned Size) const override;
38
39private:
40  void eliminateFI(MachineBasicBlock::iterator II, unsigned OpNo,
41                   int FrameIndex, uint64_t StackSize,
42                   int64_t SPOffset) const override;
43};
44
45} // end namespace llvm
46
47#endif
48