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 48