| //===- X86RegisterInfo.h - X86 Register Information Impl --------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file was developed by the LLVM research group and is distributed under |
| // the University of Illinois Open Source License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file contains the X86 implementation of the MRegisterInfo class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef X86REGISTERINFO_H |
| #define X86REGISTERINFO_H |
| |
| #include "llvm/Target/MRegisterInfo.h" |
| |
| class llvm::Type; |
| |
| #include "X86GenRegisterInfo.h.inc" |
| |
| namespace llvm { |
| |
| struct X86RegisterInfo : public X86GenRegisterInfo { |
| X86RegisterInfo(); |
| const TargetRegisterClass* getRegClassForType(const Type* Ty) const; |
| |
| /// Code Generation virtual methods... |
| int storeRegToStackSlot(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MI, |
| unsigned SrcReg, int FrameIndex, |
| const TargetRegisterClass *RC) const; |
| |
| int loadRegFromStackSlot(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MI, |
| unsigned DestReg, int FrameIndex, |
| const TargetRegisterClass *RC) const; |
| |
| int copyRegToReg(MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MI, |
| unsigned DestReg, unsigned SrcReg, |
| const TargetRegisterClass *RC) const; |
| |
| /// foldMemoryOperand - If this target supports it, fold a load or store of |
| /// the specified stack slot into the specified machine instruction for the |
| /// specified operand. If this is possible, the target should perform the |
| /// folding and return true, otherwise it should return false. If it folds |
| /// the instruction, it is likely that the MachineInstruction the iterator |
| /// references has been changed. |
| virtual MachineInstr* foldMemoryOperand(MachineBasicBlock::iterator MI, |
| unsigned OpNum, |
| int FrameIndex) const; |
| |
| |
| void eliminateCallFramePseudoInstr(MachineFunction &MF, |
| MachineBasicBlock &MBB, |
| MachineBasicBlock::iterator MI) const; |
| |
| void eliminateFrameIndex(MachineFunction &MF, |
| MachineBasicBlock::iterator MI) const; |
| |
| void processFunctionBeforeFrameFinalized(MachineFunction &MF) const; |
| |
| void emitPrologue(MachineFunction &MF) const; |
| void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const; |
| }; |
| |
| } // End llvm namespace |
| |
| #endif |