1 //===-- Mips16RegisterInfo.h - Mips16 Register Information ------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the Mips16 implementation of the TargetRegisterInfo class.
12 //===----------------------------------------------------------------------===//
14 #ifndef MIPS16REGISTERINFO_H
15 #define MIPS16REGISTERINFO_H
17 #include "MipsRegisterInfo.h"
20 class Mips16InstrInfo;
22 class Mips16RegisterInfo : public MipsRegisterInfo {
23 const Mips16InstrInfo &TII;
25 Mips16RegisterInfo(const MipsSubtarget &Subtarget,
26 const Mips16InstrInfo &TII);
28 bool requiresRegisterScavenging(const MachineFunction &MF) const;
30 bool requiresFrameIndexScavenging(const MachineFunction &MF) const;
32 bool useFPForScavengingIndex(const MachineFunction &MF) const;
34 bool saveScavengerRegister(MachineBasicBlock &MBB,
35 MachineBasicBlock::iterator I,
36 MachineBasicBlock::iterator &UseMI,
37 const TargetRegisterClass *RC,
41 virtual void eliminateFI(MachineBasicBlock::iterator II, unsigned OpNo,
42 int FrameIndex, uint64_t StackSize,
43 int64_t SPOffset) const;
46 } // end namespace llvm