lib/Target/Alpha/AlphaRegisterInfo.h

   1 //===- AlphaRegisterInfo.h - Alpha Register Information Impl ----*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file was developed by the LLVM research group and is distributed under
   6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file contains the Alpha implementation of the MRegisterInfo class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef ALPHAREGISTERINFO_H
  15 #define ALPHAREGISTERINFO_H
  16
  17 #include "llvm/Target/MRegisterInfo.h"
  18 #include "AlphaGenRegisterInfo.h.inc"
  19
  20 namespace llvm {
  21
  22 class Type;
  23
  24 struct AlphaRegisterInfo : public AlphaGenRegisterInfo {
  25   const TargetInstrInfo &TII;
  26
  27   AlphaRegisterInfo(const TargetInstrInfo &tii);
  28
  29   /// Code Generation virtual methods...
  30   void storeRegToStackSlot(MachineBasicBlock &MBB,
  31                            MachineBasicBlock::iterator MBBI,
  32                            unsigned SrcReg, int FrameIndex,
  33                            const TargetRegisterClass *RC) const;
  34
  35   void loadRegFromStackSlot(MachineBasicBlock &MBB,
  36                             MachineBasicBlock::iterator MBBI,
  37                             unsigned DestReg, int FrameIndex,
  38                             const TargetRegisterClass *RC) const;
  39
  40   MachineInstr* foldMemoryOperand(MachineInstr *MI, unsigned OpNum,
  41                                   int FrameIndex) const;
  42
  43   void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
  44                     unsigned DestReg, unsigned SrcReg,
  45                     const TargetRegisterClass *RC) const;
  46
  47   const unsigned *getCalleeSaveRegs() const;
  48
  49   const TargetRegisterClass* const* getCalleeSaveRegClasses() const;
  50
  51   void eliminateCallFramePseudoInstr(MachineFunction &MF,
  52                                      MachineBasicBlock &MBB,
  53                                      MachineBasicBlock::iterator I) const;
  54
  55   void eliminateFrameIndex(MachineBasicBlock::iterator II) const;
  56
  57   //void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
  58
  59   void emitPrologue(MachineFunction &MF) const;
  60   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
  61
  62   // Debug information queries.
  63   unsigned getRARegister() const;
  64   unsigned getFrameRegister(MachineFunction &MF) const;
  65
  66   static std::string getPrettyName(unsigned reg);
  67 };
  68
  69 } // end namespace llvm
  70
  71 #endif