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//===-- MBlazeRegisterInfo.h - MBlaze 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 MBlaze implementation of the TargetRegisterInfo
// class.
//
//===----------------------------------------------------------------------===//
#ifndef MBLAZEREGISTERINFO_H
#define MBLAZEREGISTERINFO_H
#include "MBlaze.h"
#include "llvm/Target/TargetRegisterInfo.h"
#define GET_REGINFO_HEADER
#include "MBlazeGenRegisterInfo.inc"
namespace llvm {
class MBlazeSubtarget;
class TargetInstrInfo;
class Type;
namespace MBlaze {
/// SubregIndex - The index of various sized subregister classes. Note that
/// these indices must be kept in sync with the class indices in the
/// MBlazeRegisterInfo.td file.
enum SubregIndex {
SUBREG_FPEVEN = 1, SUBREG_FPODD = 2
};
}
struct MBlazeRegisterInfo : public MBlazeGenRegisterInfo {
const MBlazeSubtarget &Subtarget;
const TargetInstrInfo &TII;
MBlazeRegisterInfo(const MBlazeSubtarget &Subtarget,
const TargetInstrInfo &tii);
/// Get PIC indirect call register
static unsigned getPICCallReg();
/// Code Generation virtual methods...
const uint16_t *getCalleeSavedRegs(const MachineFunction* MF = 0) const;
BitVector getReservedRegs(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;
/// 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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