llvm-6502/lib/Target/Mips/MipsRegisterInfo.h

95 lines
3.2 KiB
C++

//===- MipsRegisterInfo.h - Mips Register Information Impl ------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Bruno Cardoso Lopes and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the Mips implementation of the MRegisterInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef MIPSREGISTERINFO_H
#define MIPSREGISTERINFO_H
#include "llvm/Target/MRegisterInfo.h"
#include "MipsGenRegisterInfo.h.inc"
namespace llvm {
class TargetInstrInfo;
class Type;
struct MipsRegisterInfo : public MipsGenRegisterInfo {
const TargetInstrInfo &TII;
MipsRegisterInfo(const TargetInstrInfo &tii);
/// getRegisterNumbering - Given the enum value for some register, e.g.
/// Mips::RA, return the number that it corresponds to (e.g. 31).
static unsigned getRegisterNumbering(unsigned RegEnum);
/// Code Generation virtual methods...
void storeRegToStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI,
unsigned SrcReg, int FrameIndex,
const TargetRegisterClass *RC) const;
void loadRegFromStackSlot(MachineBasicBlock &MBB,
MachineBasicBlock::iterator MBBI,
unsigned DestReg, int FrameIndex,
const TargetRegisterClass *RC) const;
void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI,
unsigned DestReg, const MachineInstr *Orig) const;
MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
int FrameIndex) const;
MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
MachineInstr* LoadMI) const {
return 0;
}
void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const;
const unsigned *getCalleeSavedRegs(const MachineFunction* MF = 0) const;
const TargetRegisterClass* const*
getCalleeSavedRegClasses(const MachineFunction* MF = 0) const;
BitVector getReservedRegs(const MachineFunction &MF) const;
bool hasFP(const MachineFunction &MF) const;
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
/// Stack Frame Processing Methods
void eliminateFrameIndex(MachineBasicBlock::iterator II,
int SPAdj, RegScavenger *RS = NULL) const;
void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
void emitPrologue(MachineFunction &MF) const;
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
/// Debug information queries.
unsigned getRARegister() const;
unsigned getFrameRegister(MachineFunction &MF) const;
/// Exception handling queries.
unsigned getEHExceptionRegister() const;
unsigned getEHHandlerRegister() const;
};
} // end namespace llvm
#endif