lib/Target/PIC16/PIC16RegisterInfo.h

   1 //===- PIC16RegisterInfo.h - PIC16 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 PIC16 implementation of the TargetRegisterInfo class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef PIC16REGISTERINFO_H
  15 #define PIC16REGISTERINFO_H
  16
  17 #include "PIC16GenRegisterInfo.h.inc"
  18 #include "llvm/Target/TargetRegisterInfo.h"
  19
  20 namespace llvm {
  21
  22 // Forward Declarations.
  23   class PIC16Subtarget;
  24   class TargetInstrInfo;
  25
  26 class PIC16RegisterInfo : public PIC16GenRegisterInfo {
  27   private:
  28     const TargetInstrInfo &TII;
  29     const PIC16Subtarget &ST;
  30
  31   public:
  32     PIC16RegisterInfo(const TargetInstrInfo &tii,
  33                       const PIC16Subtarget &st);
  34
  35
  36   //------------------------------------------------------
  37   // Pure virtual functions from TargetRegisterInfo
  38   //------------------------------------------------------
  39
  40   // PIC16 callee saved registers
  41   virtual const unsigned*
  42   getCalleeSavedRegs(const MachineFunction *MF = 0) const;
  43
  44   // PIC16 callee saved register classes
  45   virtual const TargetRegisterClass* const *
  46   getCalleeSavedRegClasses(const MachineFunction *MF) const;
  47
  48   virtual BitVector getReservedRegs(const MachineFunction &MF) const;
  49   virtual bool hasFP(const MachineFunction &MF) const;
  50
  51   virtual void eliminateFrameIndex(MachineBasicBlock::iterator MI,
  52                         int SPAdj, RegScavenger *RS=NULL) const;
  53
  54   void eliminateCallFramePseudoInstr(MachineFunction &MF,
  55                                      MachineBasicBlock &MBB,
  56                                      MachineBasicBlock::iterator I) const;
  57
  58   virtual void emitPrologue(MachineFunction &MF) const;
  59   virtual void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
  60   virtual int getDwarfRegNum(unsigned RegNum, bool isEH) const;
  61   virtual unsigned getFrameRegister(MachineFunction &MF) const;
  62   virtual unsigned getRARegister() const;
  63
  64 };
  65
  66 } // end namespace llvm
  67
  68 #endif