lib/Target/PowerPC/PowerPCRegisterInfo.h

   1 //===- PowerPCRegisterInfo.h - PowerPC 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 PowerPC implementation of the MRegisterInfo class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef POWERPCREGISTERINFO_H
  15 #define POWERPCREGISTERINFO_H
  16
  17 #include "llvm/Target/MRegisterInfo.h"
  18 #include "PowerPCGenRegisterInfo.h.inc"
  19 #include <map>
  20
  21 namespace llvm {
  22
  23 class Type;
  24
  25 class PowerPCRegisterInfo : public PowerPCGenRegisterInfo {
  26   bool is64bit;
  27   std::map<unsigned, unsigned> ImmToIdxMap;
  28 public:
  29   PowerPCRegisterInfo(bool is64b);
  30   const TargetRegisterClass* getRegClassForType(const Type* Ty) const;
  31
  32   /// Code Generation virtual methods...
  33   void storeRegToStackSlot(MachineBasicBlock &MBB,
  34                            MachineBasicBlock::iterator MBBI,
  35                            unsigned SrcReg, int FrameIndex) const;
  36
  37   void loadRegFromStackSlot(MachineBasicBlock &MBB,
  38                             MachineBasicBlock::iterator MBBI,
  39                             unsigned DestReg, int FrameIndex) const;
  40
  41   void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
  42                     unsigned DestReg, unsigned SrcReg,
  43                     const TargetRegisterClass *RC) const;
  44
  45   void eliminateCallFramePseudoInstr(MachineFunction &MF,
  46                                      MachineBasicBlock &MBB,
  47                                      MachineBasicBlock::iterator I) const;
  48
  49   void eliminateFrameIndex(MachineBasicBlock::iterator II) const;
  50
  51   void emitPrologue(MachineFunction &MF) const;
  52   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
  53 };
  54
  55 } // end namespace llvm
  56
  57 #endif