llvm/lib/Target/Mips/Mips16RegisterInfo.h

   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