lib/Target/Sparc/SparcRegisterInfo.h

   1 //===- SparcRegisterInfo.h - Sparc 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 Sparc implementation of the TargetRegisterInfo class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef SPARCREGISTERINFO_H
  15 #define SPARCREGISTERINFO_H
  16
  17 #include "llvm/Target/TargetRegisterInfo.h"
  18 #include "SparcGenRegisterInfo.h.inc"
  19
  20 namespace llvm {
  21
  22 class SparcSubtarget;
  23 class TargetInstrInfo;
  24 class Type;
  25
  26 struct 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   const unsigned *getCalleeSavedRegs(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 I) const;
  42
  43   void eliminateFrameIndex(MachineBasicBlock::iterator II,
  44                            int SPAdj, RegScavenger *RS = NULL) const;
  45
  46   void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
  47
  48   void emitPrologue(MachineFunction &MF) const;
  49   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
  50
  51   // Debug information queries.
  52   unsigned getRARegister() const;
  53   unsigned getFrameRegister(const MachineFunction &MF) const;
  54
  55   // Exception handling queries.
  56   unsigned getEHExceptionRegister() const;
  57   unsigned getEHHandlerRegister() const;
  58
  59   int getDwarfRegNum(unsigned RegNum, bool isEH) const;
  60 };
  61
  62 } // end namespace llvm
  63
  64 #endif