lib/Target/IA64/IA64RegisterInfo.h

   1 //===- IA64RegisterInfo.h - IA64 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 IA64 implementation of the TargetRegisterInfo class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef IA64REGISTERINFO_H
  15 #define IA64REGISTERINFO_H
  16
  17 #include "llvm/Target/TargetRegisterInfo.h"
  18 #include "IA64GenRegisterInfo.h.inc"
  19
  20 namespace llvm {
  21
  22 class TargetInstrInfo;
  23
  24 struct IA64RegisterInfo : public IA64GenRegisterInfo {
  25   const TargetInstrInfo &TII;
  26
  27   IA64RegisterInfo(const TargetInstrInfo &tii);
  28
  29   /// Code Generation virtual methods...
  30   const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
  31
  32   const TargetRegisterClass* const* getCalleeSavedRegClasses(
  33                                      const MachineFunction *MF = 0) const;
  34
  35   BitVector getReservedRegs(const MachineFunction &MF) const;
  36
  37   bool hasFP(const MachineFunction &MF) const;
  38
  39   void eliminateCallFramePseudoInstr(MachineFunction &MF,
  40                                      MachineBasicBlock &MBB,
  41                                      MachineBasicBlock::iterator MI) const;
  42
  43   void eliminateFrameIndex(MachineBasicBlock::iterator MI,
  44                            int SPAdj, RegScavenger *RS = NULL) const;
  45
  46   void emitPrologue(MachineFunction &MF) const;
  47   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
  48
  49   // Debug information queries.
  50   unsigned getRARegister() const;
  51   unsigned getFrameRegister(MachineFunction &MF) const;
  52
  53   // Exception handling queries.
  54   unsigned getEHExceptionRegister() const;
  55   unsigned getEHHandlerRegister() const;
  56
  57   int getDwarfRegNum(unsigned RegNum, bool isEH) const;
  58 };
  59
  60 } // End llvm namespace
  61
  62 #endif
  63