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   const unsigned* getCalleeSaveRegs() const;
  18
  19   /// Returns register class appropriate for input SSA register
  20   ///
  21   const TargetRegisterClass *getClassForReg(unsigned Reg) const;
  22   const TargetRegisterClass* getRegClassForType(const Type* Ty) const;
  23
  24   /// Code Generation virtual methods...
  25   void storeRegToStackSlot(MachineBasicBlock &MBB,
  26                            MachineBasicBlock::iterator &MBBI,
  27                            unsigned SrcReg, int FrameIndex,
  28                            const TargetRegisterClass *RC) const;
  29
  30   void loadRegFromStackSlot(MachineBasicBlock &MBB,
  31                             MachineBasicBlock::iterator &MBBI,
  32                             unsigned DestReg, int FrameIndex,
  33                             const TargetRegisterClass *RC) const;
  34
  35   void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator &MBBI,
  36                    unsigned DestReg, unsigned SrcReg,
  37                    const TargetRegisterClass *RC) const;
  38
  39   void eliminateCallFramePseudoInstr(MachineFunction &MF,
  40                                      MachineBasicBlock &MBB,
  41                                      MachineBasicBlock::iterator &I) const;
  42
  43   void eliminateFrameIndex(MachineFunction &MF,
  44                            MachineBasicBlock::iterator &II) const;
  45
  46   void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
  47
  48   void emitPrologue(MachineFunction &MF) const;
  49   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
  50 };
  51
  52 #endif