SparcRegisterInfo.h revision b97aec663b1591e71c9ddee6dbb327d1b827eda5
1//===- SparcRegisterInfo.h - Sparc Register Information Impl ----*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file was developed by the LLVM research group and is distributed under 6// the University of Illinois Open Source License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file contains the Sparc implementation of the MRegisterInfo class. 11// 12//===----------------------------------------------------------------------===// 13 14#ifndef SPARCREGISTERINFO_H 15#define SPARCREGISTERINFO_H 16 17#include "llvm/Target/MRegisterInfo.h" 18#include "SparcGenRegisterInfo.h.inc" 19 20namespace llvm { 21 22class SparcSubtarget; 23class TargetInstrInfo; 24class Type; 25 26struct SparcRegisterInfo : public SparcGenRegisterInfo { 27 SparcSubtarget &Subtarget; 28 const TargetInstrInfo &TII; 29 30 SparcRegisterInfo(SparcSubtarget &st, const TargetInstrInfo &tii); 31 32 /// Code Generation virtual methods... 33 void storeRegToStackSlot(MachineBasicBlock &MBB, 34 MachineBasicBlock::iterator MBBI, 35 unsigned SrcReg, int FrameIndex, 36 const TargetRegisterClass *RC) const; 37 38 void storeRegToAddr(MachineFunction &MF, unsigned SrcReg, 39 SmallVectorImpl<MachineOperand> &Addr, 40 const TargetRegisterClass *RC, 41 SmallVectorImpl<MachineInstr*> &NewMIs) const; 42 43 void loadRegFromStackSlot(MachineBasicBlock &MBB, 44 MachineBasicBlock::iterator MBBI, 45 unsigned DestReg, int FrameIndex, 46 const TargetRegisterClass *RC) const; 47 48 void loadRegFromAddr(MachineFunction &MF, unsigned DestReg, 49 SmallVectorImpl<MachineOperand> &Addr, 50 const TargetRegisterClass *RC, 51 SmallVectorImpl<MachineInstr*> &NewMIs) const; 52 53 void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, 54 unsigned DestReg, unsigned SrcReg, 55 const TargetRegisterClass *DestRC, 56 const TargetRegisterClass *SrcRC) const; 57 58 void reMaterialize(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, 59 unsigned DestReg, const MachineInstr *Orig) const; 60 61 virtual MachineInstr* foldMemoryOperand(MachineInstr* MI, 62 unsigned OpNum, 63 int FrameIndex) const; 64 65 virtual MachineInstr* foldMemoryOperand(MachineInstr* MI, 66 unsigned OpNum, 67 MachineInstr* LoadMI) const { 68 return 0; 69 } 70 71 const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const; 72 73 const TargetRegisterClass* const* getCalleeSavedRegClasses( 74 const MachineFunction *MF = 0) const; 75 76 BitVector getReservedRegs(const MachineFunction &MF) const; 77 78 bool hasFP(const MachineFunction &MF) const; 79 80 void eliminateCallFramePseudoInstr(MachineFunction &MF, 81 MachineBasicBlock &MBB, 82 MachineBasicBlock::iterator I) const; 83 84 void eliminateFrameIndex(MachineBasicBlock::iterator II, 85 int SPAdj, RegScavenger *RS = NULL) const; 86 87 void processFunctionBeforeFrameFinalized(MachineFunction &MF) const; 88 89 void emitPrologue(MachineFunction &MF) const; 90 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const; 91 92 // Debug information queries. 93 unsigned getRARegister() const; 94 unsigned getFrameRegister(MachineFunction &MF) const; 95 96 // Exception handling queries. 97 unsigned getEHExceptionRegister() const; 98 unsigned getEHHandlerRegister() const; 99 100 int getDwarfRegNum(unsigned RegNum, bool isEH) const; 101}; 102 103} // end namespace llvm 104 105#endif 106