llvm-6502/lib/Target/Blackfin/BlackfinRegisterInfo.h
Evan Cheng 0e6a052331 Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo down
to MCRegisterInfo. Also initialize the mapping at construction time.

This patch eliminate TargetRegisterInfo from TargetAsmInfo. It's another step
towards fixing the layering violation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135424 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18 20:57:22 +00:00

78 lines
2.4 KiB
C++

//===- BlackfinRegisterInfo.h - Blackfin 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 Blackfin implementation of the TargetRegisterInfo
// class.
//
//===----------------------------------------------------------------------===//
#ifndef BLACKFINREGISTERINFO_H
#define BLACKFINREGISTERINFO_H
#include "llvm/Target/TargetRegisterInfo.h"
#define GET_REGINFO_HEADER
#include "BlackfinGenRegisterInfo.inc"
namespace llvm {
class BlackfinSubtarget;
class TargetInstrInfo;
class Type;
struct BlackfinRegisterInfo : public BlackfinGenRegisterInfo {
BlackfinSubtarget &Subtarget;
const TargetInstrInfo &TII;
BlackfinRegisterInfo(BlackfinSubtarget &st, const TargetInstrInfo &tii);
/// Code Generation virtual methods...
const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
BitVector getReservedRegs(const MachineFunction &MF) const;
// getSubReg implemented by tablegen
const TargetRegisterClass *getPointerRegClass(unsigned Kind = 0) const {
return &BF::PRegClass;
}
bool requiresRegisterScavenging(const MachineFunction &MF) const;
void eliminateCallFramePseudoInstr(MachineFunction &MF,
MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const;
void eliminateFrameIndex(MachineBasicBlock::iterator II,
int SPAdj, RegScavenger *RS = NULL) const;
unsigned getFrameRegister(const MachineFunction &MF) const;
// Exception handling queries.
unsigned getEHExceptionRegister() const;
unsigned getEHHandlerRegister() const;
// Utility functions
void adjustRegister(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I,
DebugLoc DL,
unsigned Reg,
unsigned ScratchReg,
int delta) const;
void loadConstant(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I,
DebugLoc DL,
unsigned Reg,
int value) const;
};
} // end namespace llvm
#endif