llvm-6502/lib/Target/PIC16/PIC16RegisterInfo.h
2009-01-13 19:18:47 +00:00

69 lines
2.2 KiB
C++

//===- PIC16RegisterInfo.h - PIC16 Register Information Impl ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains the PIC16 implementation of the TargetRegisterInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef PIC16REGISTERINFO_H
#define PIC16REGISTERINFO_H
#include "PIC16GenRegisterInfo.h.inc"
#include "llvm/Target/TargetRegisterInfo.h"
namespace llvm {
// Forward Declarations.
class PIC16Subtarget;
class TargetInstrInfo;
class PIC16RegisterInfo : public PIC16GenRegisterInfo {
private:
const TargetInstrInfo &TII;
const PIC16Subtarget &ST;
public:
PIC16RegisterInfo(const TargetInstrInfo &tii,
const PIC16Subtarget &st);
//------------------------------------------------------
// Pure virtual functions from TargetRegisterInfo
//------------------------------------------------------
// PIC16 callee saved registers
virtual const unsigned*
getCalleeSavedRegs(const MachineFunction *MF = 0) const;
// PIC16 callee saved register classes
virtual const TargetRegisterClass* const *
getCalleeSavedRegClasses(const MachineFunction *MF) const;
virtual BitVector getReservedRegs(const MachineFunction &MF) const;
virtual bool hasFP(const MachineFunction &MF) const;
virtual void eliminateFrameIndex(MachineBasicBlock::iterator MI,
int SPAdj, RegScavenger *RS=NULL) const;
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
virtual void emitPrologue(MachineFunction &MF) const;
virtual void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
virtual int getDwarfRegNum(unsigned RegNum, bool isEH) const;
virtual unsigned getFrameRegister(MachineFunction &MF) const;
virtual unsigned getRARegister() const;
};
} // end namespace llvm
#endif