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PPC32RegisterInfo.h

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00001 //===- PPC32RegisterInfo.h - PowerPC32 Register Information Impl -*- C++ -*-==//
00002 // 
00003 //                     The LLVM Compiler Infrastructure
00004 //
00005 // This file was developed by the LLVM research group and is distributed under
00006 // the University of Illinois Open Source License. See LICENSE.TXT for details.
00007 // 
00008 //===----------------------------------------------------------------------===//
00009 //
00010 // This file contains the PowerPC implementation of the MRegisterInfo class.
00011 //
00012 //===----------------------------------------------------------------------===//
00013 
00014 #ifndef POWERPC32_REGISTERINFO_H
00015 #define POWERPC32_REGISTERINFO_H
00016 
00017 #include "PowerPC.h"
00018 #include "PPC32GenRegisterInfo.h.inc"
00019 #include <map>
00020 
00021 namespace llvm {
00022 
00023 class Type;
00024 
00025 class PPC32RegisterInfo : public PPC32GenRegisterInfo {
00026   std::map<unsigned, unsigned> ImmToIdxMap;
00027 public:
00028   PPC32RegisterInfo();
00029   const TargetRegisterClass* getRegClassForType(const Type* Ty) const;
00030 
00031   /// Code Generation virtual methods...
00032   void storeRegToStackSlot(MachineBasicBlock &MBB,
00033                            MachineBasicBlock::iterator MBBI,
00034                            unsigned SrcReg, int FrameIndex) const;
00035 
00036   void loadRegFromStackSlot(MachineBasicBlock &MBB,
00037                             MachineBasicBlock::iterator MBBI,
00038                             unsigned DestReg, int FrameIndex) const;
00039   
00040   void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
00041                     unsigned DestReg, unsigned SrcReg,
00042                     const TargetRegisterClass *RC) const;
00043 
00044   void eliminateCallFramePseudoInstr(MachineFunction &MF,
00045                                      MachineBasicBlock &MBB,
00046                                      MachineBasicBlock::iterator I) const;
00047 
00048   void eliminateFrameIndex(MachineBasicBlock::iterator II) const;
00049 
00050   void emitPrologue(MachineFunction &MF) const;
00051   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
00052 };
00053 
00054 } // end namespace llvm
00055 
00056 #endif