lib/Target/X86/X86RegisterInfo.h

   1 //===- X86RegisterInfo.h - X86 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 X86 implementation of the MRegisterInfo class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef X86REGISTERINFO_H
  15 #define X86REGISTERINFO_H
  16
  17 #include "llvm/Target/MRegisterInfo.h"
  18
  19 class llvm::Type;
  20
  21 #include "X86GenRegisterInfo.h.inc"
  22
  23 namespace llvm {
  24
  25 struct X86RegisterInfo : public X86GenRegisterInfo {
  26   X86RegisterInfo();
  27   const TargetRegisterClass* getRegClassForType(const Type* Ty) const;
  28
  29   /// Code Generation virtual methods...
  30   int storeRegToStackSlot(MachineBasicBlock &MBB,
  31                           MachineBasicBlock::iterator MI,
  32                           unsigned SrcReg, int FrameIndex,
  33                           const TargetRegisterClass *RC) const;
  34
  35   int loadRegFromStackSlot(MachineBasicBlock &MBB,
  36                            MachineBasicBlock::iterator MI,
  37                            unsigned DestReg, int FrameIndex,
  38                            const TargetRegisterClass *RC) const;
  39
  40   int copyRegToReg(MachineBasicBlock &MBB,
  41                    MachineBasicBlock::iterator MI,
  42                    unsigned DestReg, unsigned SrcReg,
  43                    const TargetRegisterClass *RC) const;
  44
  45   virtual bool canFoldMemoryOperand(MachineInstr* MI, unsigned i) const;
  46
  47   virtual int foldMemoryOperand(MachineInstr* MI, unsigned i,
  48                                 int FrameIndex) const;
  49
  50   void eliminateCallFramePseudoInstr(MachineFunction &MF,
  51                                      MachineBasicBlock &MBB,
  52                                      MachineBasicBlock::iterator MI) const;
  53
  54   void eliminateFrameIndex(MachineFunction &MF,
  55                            MachineBasicBlock::iterator MI) const;
  56
  57   void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
  58
  59   void emitPrologue(MachineFunction &MF) const;
  60   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
  61 };
  62
  63 } // End llvm namespace
  64
  65 #endif