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   const TargetRegisterClass* const* getCalleeSavedRegClasses(
  36                                      const MachineFunction *MF = 0) const;
  37
  38   BitVector getReservedRegs(const MachineFunction &MF) const;
  39
  40   bool hasFP(const MachineFunction &MF) const;
  41
  42   void eliminateCallFramePseudoInstr(MachineFunction &MF,
  43                                      MachineBasicBlock &MBB,
  44                                      MachineBasicBlock::iterator I) const;
  45
  46   void eliminateFrameIndex(MachineBasicBlock::iterator II,
  47                            int SPAdj, RegScavenger *RS = NULL) const;
  48
  49   void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
  50
  51   void emitPrologue(MachineFunction &MF) const;
  52   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
  53
  54   // Debug information queries.
  55   unsigned getRARegister() const;
  56   unsigned getFrameRegister(MachineFunction &MF) const;
  57
  58   // Exception handling queries.
  59   unsigned getEHExceptionRegister() const;
  60   unsigned getEHHandlerRegister() const;
  61
  62   int getDwarfRegNum(unsigned RegNum, bool isEH) const;
  63 };
  64
  65 } // end namespace llvm
  66
  67 #endif