1 //===-- Mips16RegisterInfo.h - Mips16 Register Information ------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file contains the Mips16 implementation of the TargetRegisterInfo class. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_MIPS_MIPS16REGISTERINFO_H 15 #define LLVM_LIB_TARGET_MIPS_MIPS16REGISTERINFO_H 16 17 #include "MipsRegisterInfo.h" 18 19 namespace llvm { 20 class Mips16InstrInfo; 21 22 class Mips16RegisterInfo : public MipsRegisterInfo { 23 public: 24 Mips16RegisterInfo(); 25 26 bool requiresRegisterScavenging(const MachineFunction &MF) const override; 27 28 bool requiresFrameIndexScavenging(const MachineFunction &MF) const override; 29 30 bool useFPForScavengingIndex(const MachineFunction &MF) const override; 31 32 bool saveScavengerRegister(MachineBasicBlock &MBB, 33 MachineBasicBlock::iterator I, 34 MachineBasicBlock::iterator &UseMI, 35 const TargetRegisterClass *RC, 36 unsigned Reg) const override; 37 38 const TargetRegisterClass *intRegClass(unsigned Size) const override; 39 40 private: 41 void eliminateFI(MachineBasicBlock::iterator II, unsigned OpNo, 42 int FrameIndex, uint64_t StackSize, 43 int64_t SPOffset) const override; 44 }; 45 46 } // end namespace llvm 47 48 #endif 49
