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 
18 namespace llvm {
19 
20 class Mips16RegisterInfo : public MipsRegisterInfo {
21 public:
22   Mips16RegisterInfo();
23 
24   bool requiresRegisterScavenging(const MachineFunction &MF) const override;
25 
26   bool requiresFrameIndexScavenging(const MachineFunction &MF) const override;
27 
28   bool useFPForScavengingIndex(const MachineFunction &MF) const override;
29 
30   bool saveScavengerRegister(MachineBasicBlock &MBB,
31                              MachineBasicBlock::iterator I,
32                              MachineBasicBlock::iterator &UseMI,
33                              const TargetRegisterClass *RC,
34                              Register Reg) const override;
35 
36   const TargetRegisterClass *intRegClass(unsigned Size) const override;
37 
38 private:
39   void eliminateFI(MachineBasicBlock::iterator II, unsigned OpNo,
40                    int FrameIndex, uint64_t StackSize,
41                    int64_t SPOffset) const override;
42 };
43 
44 } // end namespace llvm
45 
46 #endif
47