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//===-- SystemZRegisterInfo.h - SystemZ Register Information ----*- 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 SystemZ implementation of the TargetRegisterInfo class.
//
//===----------------------------------------------------------------------===//
#ifndef SystemZREGISTERINFO_H
#define SystemZREGISTERINFO_H
#include "llvm/Target/TargetRegisterInfo.h"
#define GET_REGINFO_HEADER
#include "SystemZGenRegisterInfo.inc"
namespace llvm {
class SystemZSubtarget;
class SystemZInstrInfo;
class Type;
struct SystemZRegisterInfo : public SystemZGenRegisterInfo {
SystemZTargetMachine &TM;
const SystemZInstrInfo &TII;
SystemZRegisterInfo(SystemZTargetMachine &tm, const SystemZInstrInfo &tii);
/// Code Generation virtual methods...
const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
BitVector getReservedRegs(const MachineFunction &MF) const;
const TargetRegisterClass*
getMatchingSuperRegClass(const TargetRegisterClass *A,
const TargetRegisterClass *B, unsigned Idx) const;
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
void eliminateFrameIndex(MachineBasicBlock::iterator II,
int SPAdj, RegScavenger *RS = NULL) const;
// Debug information queries.
unsigned getFrameRegister(const MachineFunction &MF) const;
// Exception handling queries.
unsigned getEHExceptionRegister() const;
unsigned getEHHandlerRegister() const;
};
} // end namespace llvm
#endif
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