lib/Target/X86/X86RegisterInfo.h

   1 //===- X86RegisterInfo.h - X86 Register Information Impl ----------*-C++-*-===//
   2 //
   3 // This file contains the X86 implementation of the MRegisterInfo class.
   4 //
   5 //===----------------------------------------------------------------------===//
   6
   7 #ifndef X86REGISTERINFO_H
   8 #define X86REGISTERINFO_H
   9
  10 #include "llvm/Target/MRegisterInfo.h"
  11
  12 class Type;
  13
  14 struct X86RegisterInfo : public MRegisterInfo {
  15   X86RegisterInfo();
  16
  17   MRegisterInfo::const_iterator const_regclass_begin() const;
  18   MRegisterInfo::const_iterator const_regclass_end() const;
  19
  20   MachineBasicBlock::iterator
  21   storeReg2RegOffset(MachineBasicBlock *MBB,
  22                      MachineBasicBlock::iterator MBBI,
  23                      unsigned DestReg, unsigned SrcReg,
  24                      unsigned ImmOffset, unsigned dataSize) const;
  25
  26   MachineBasicBlock::iterator
  27   loadRegOffset2Reg(MachineBasicBlock *MBB,
  28                     MachineBasicBlock::iterator MBBI,
  29                     unsigned DestReg, unsigned SrcReg,
  30                     unsigned ImmOffset, unsigned dataSize) const;
  31
  32   MachineBasicBlock::iterator
  33   moveReg2Reg(MachineBasicBlock *MBB,
  34               MachineBasicBlock::iterator MBBI,
  35               unsigned DestReg, unsigned SrcReg, unsigned dataSize) const;
  36
  37   MachineBasicBlock::iterator
  38   moveImm2Reg(MachineBasicBlock *MBB,
  39               MachineBasicBlock::iterator MBBI,
  40               unsigned DestReg, unsigned Imm, unsigned dataSize) const;
  41
  42   unsigned getFramePointer() const;
  43   unsigned getStackPointer() const;
  44
  45   const unsigned* getCalleeSaveRegs() const;
  46   const unsigned* getCallerSaveRegs() const;
  47
  48   MachineBasicBlock::iterator emitPrologue(MachineBasicBlock *MBB,
  49                                            MachineBasicBlock::iterator MBBI,
  50                                            unsigned numBytes) const;
  51
  52   MachineBasicBlock::iterator emitEpilogue(MachineBasicBlock *MBB,
  53                                            MachineBasicBlock::iterator MBBI,
  54                                            unsigned numBytes) const;
  55
  56   /// Returns register class appropriate for input SSA register
  57   ///
  58   const TargetRegisterClass *getClassForReg(unsigned Reg) const;
  59
  60   const TargetRegisterClass* getRegClassForType(const Type* Ty) const;
  61
  62   unsigned getNumRegClasses() const;
  63
  64 };
  65
  66 #endif