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 class Mips16InstrInfo;
  20
  21 class Mips16RegisterInfo : public MipsRegisterInfo {
  22 public:
  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
  39 private:
  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