MSP430RegisterInfo.h revision 212904
1//===- MSP430RegisterInfo.h - MSP430 Register Information Impl --*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file contains the MSP430 implementation of the MRegisterInfo class. 11// 12//===----------------------------------------------------------------------===// 13 14#ifndef LLVM_TARGET_MSP430REGISTERINFO_H 15#define LLVM_TARGET_MSP430REGISTERINFO_H 16 17#include "llvm/Target/TargetRegisterInfo.h" 18#include "MSP430GenRegisterInfo.h.inc" 19 20namespace llvm { 21 22class TargetInstrInfo; 23class MSP430TargetMachine; 24 25struct MSP430RegisterInfo : public MSP430GenRegisterInfo { 26private: 27 MSP430TargetMachine &TM; 28 const TargetInstrInfo &TII; 29 30 /// StackAlign - Default stack alignment. 31 /// 32 unsigned StackAlign; 33public: 34 MSP430RegisterInfo(MSP430TargetMachine &tm, const TargetInstrInfo &tii); 35 36 /// Code Generation virtual methods... 37 const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const; 38 39 BitVector getReservedRegs(const MachineFunction &MF) const; 40 const TargetRegisterClass* getPointerRegClass(unsigned Kind = 0) const; 41 42 bool hasFP(const MachineFunction &MF) const; 43 bool hasReservedCallFrame(const MachineFunction &MF) const; 44 45 void eliminateCallFramePseudoInstr(MachineFunction &MF, 46 MachineBasicBlock &MBB, 47 MachineBasicBlock::iterator I) const; 48 49 void eliminateFrameIndex(MachineBasicBlock::iterator II, 50 int SPAdj, RegScavenger *RS = NULL) const; 51 52 void emitPrologue(MachineFunction &MF) const; 53 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const; 54 55 void processFunctionBeforeFrameFinalized(MachineFunction &MF) const; 56 57 // Debug information queries. 58 unsigned getRARegister() const; 59 unsigned getFrameRegister(const MachineFunction &MF) const; 60 61 //! Get DWARF debugging register number 62 int getDwarfRegNum(unsigned RegNum, bool isEH) const; 63}; 64 65} // end namespace llvm 66 67#endif // LLVM_TARGET_MSP430REGISTERINFO_H 68