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 TargetInstrInfo;
  23 class Type;
  24
  25 struct AlphaRegisterInfo : public AlphaGenRegisterInfo {
  26   const TargetInstrInfo &TII;
  27
  28   AlphaRegisterInfo(const TargetInstrInfo &tii);
  29
  30   /// Code Generation virtual methods...
  31   void storeRegToStackSlot(MachineBasicBlock &MBB,
  32                            MachineBasicBlock::iterator MBBI,
  33                            unsigned SrcReg, int FrameIndex,
  34                            const TargetRegisterClass *RC) const;
  35
  36   void loadRegFromStackSlot(MachineBasicBlock &MBB,
  37                             MachineBasicBlock::iterator MBBI,
  38                             unsigned DestReg, int FrameIndex,
  39                             const TargetRegisterClass *RC) const;
  40
  41   MachineInstr* foldMemoryOperand(MachineInstr *MI, unsigned OpNum,
  42                                   int FrameIndex) const;
  43
  44   void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
  45                     unsigned DestReg, unsigned SrcReg,
  46                     const TargetRegisterClass *RC) const;
  47
  48   const unsigned *getCalleeSaveRegs() const;
  49
  50   const TargetRegisterClass* const* getCalleeSaveRegClasses() const;
  51
  52   void eliminateCallFramePseudoInstr(MachineFunction &MF,
  53                                      MachineBasicBlock &MBB,
  54                                      MachineBasicBlock::iterator I) const;
  55
  56   void eliminateFrameIndex(MachineBasicBlock::iterator II) const;
  57
  58   //void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
  59
  60   void emitPrologue(MachineFunction &MF) const;
  61   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
  62
  63   // Debug information queries.
  64   unsigned getRARegister() const;
  65   unsigned getFrameRegister(MachineFunction &MF) const;
  66
  67   static std::string getPrettyName(unsigned reg);
  68 };
  69
  70 } // end namespace llvm
  71
  72 #endif