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//===- MSP430RegisterInfo.h - MSP430 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 MSP430 implementation of the MRegisterInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TARGET_MSP430REGISTERINFO_H
#define LLVM_TARGET_MSP430REGISTERINFO_H
#include "llvm/Target/TargetRegisterInfo.h"
#include "MSP430GenRegisterInfo.h.inc"
namespace llvm {
class TargetInstrInfo;
class MSP430TargetMachine;
struct MSP430RegisterInfo : public MSP430GenRegisterInfo {
private:
MSP430TargetMachine &TM;
const TargetInstrInfo &TII;
/// StackAlign - Default stack alignment.
///
unsigned StackAlign;
public:
MSP430RegisterInfo(MSP430TargetMachine &tm, const TargetInstrInfo &tii);
/// Code Generation virtual methods...
const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
const TargetRegisterClass* const*
getCalleeSavedRegClasses(const MachineFunction *MF = 0) const;
BitVector getReservedRegs(const MachineFunction &MF) const;
const TargetRegisterClass* getPointerRegClass(unsigned Kind = 0) const;
bool hasFP(const MachineFunction &MF) const;
bool hasReservedCallFrame(MachineFunction &MF) const;
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
unsigned eliminateFrameIndex(MachineBasicBlock::iterator II,
int SPAdj, int *Value = NULL,
RegScavenger *RS = NULL) const;
void emitPrologue(MachineFunction &MF) const;
void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
// Debug information queries.
unsigned getRARegister() const;
unsigned getFrameRegister(const MachineFunction &MF) const;
//! Get DWARF debugging register number
int getDwarfRegNum(unsigned RegNum, bool isEH) const;
};
} // end namespace llvm
#endif // LLVM_TARGET_MSP430REGISTERINFO_H
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