1 //===- PIC16RegisterInfo.h - PIC16 Register Information Impl ----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file contains the PIC16 implementation of the TargetRegisterInfo class.
12 //===----------------------------------------------------------------------===//
14 #ifndef PIC16REGISTERINFO_H
15 #define PIC16REGISTERINFO_H
17 #include "PIC16GenRegisterInfo.h.inc"
18 #include "llvm/Target/TargetRegisterInfo.h"
22 // Forward Declarations.
24 class TargetInstrInfo;
26 class PIC16RegisterInfo : public PIC16GenRegisterInfo {
28 const TargetInstrInfo &TII;
29 const PIC16Subtarget &ST;
32 PIC16RegisterInfo(const TargetInstrInfo &tii,
33 const PIC16Subtarget &st);
36 //------------------------------------------------------
37 // Pure virtual functions from TargetRegisterInfo
38 //------------------------------------------------------
40 // PIC16 callee saved registers
41 virtual const unsigned*
42 getCalleeSavedRegs(const MachineFunction *MF = 0) const;
44 // PIC16 callee saved register classes
45 virtual const TargetRegisterClass* const *
46 getCalleeSavedRegClasses(const MachineFunction *MF) const;
48 virtual BitVector getReservedRegs(const MachineFunction &MF) const;
49 virtual bool hasFP(const MachineFunction &MF) const;
51 virtual unsigned eliminateFrameIndex(MachineBasicBlock::iterator MI,
52 int SPAdj, int *Value = NULL,
53 RegScavenger *RS=NULL) const;
55 void eliminateCallFramePseudoInstr(MachineFunction &MF,
56 MachineBasicBlock &MBB,
57 MachineBasicBlock::iterator I) const;
59 virtual void emitPrologue(MachineFunction &MF) const;
60 virtual void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
61 virtual int getDwarfRegNum(unsigned RegNum, bool isEH) const;
62 virtual unsigned getFrameRegister(const MachineFunction &MF) const;
63 virtual unsigned getRARegister() const;
67 } // end namespace llvm