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a99791886d
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27225 91177308-0d34-0410-b5e6-96231b3b80d8
73 lines
2.6 KiB
C++
73 lines
2.6 KiB
C++
//===- X86RegisterInfo.h - X86 Register Information Impl --------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains the X86 implementation of the MRegisterInfo class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef X86REGISTERINFO_H
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#define X86REGISTERINFO_H
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#include "llvm/Target/MRegisterInfo.h"
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class llvm::Type;
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#include "X86GenRegisterInfo.h.inc"
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namespace llvm {
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struct X86RegisterInfo : public X86GenRegisterInfo {
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X86RegisterInfo();
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/// Code Generation virtual methods...
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void storeRegToStackSlot(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MI,
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unsigned SrcReg, int FrameIndex,
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const TargetRegisterClass *RC) const;
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void loadRegFromStackSlot(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MI,
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unsigned DestReg, int FrameIndex,
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const TargetRegisterClass *RC) const;
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void copyRegToReg(MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MI,
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unsigned DestReg, unsigned SrcReg,
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const TargetRegisterClass *RC) const;
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/// foldMemoryOperand - If this target supports it, fold a load or store of
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/// the specified stack slot into the specified machine instruction for the
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/// specified operand. If this is possible, the target should perform the
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/// folding and return true, otherwise it should return false. If it folds
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/// the instruction, it is likely that the MachineInstruction the iterator
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/// references has been changed.
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virtual MachineInstr* foldMemoryOperand(MachineInstr* MI,
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unsigned OpNum,
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int FrameIndex) const;
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void eliminateCallFramePseudoInstr(MachineFunction &MF,
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MachineBasicBlock &MBB,
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MachineBasicBlock::iterator MI) const;
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void eliminateFrameIndex(MachineBasicBlock::iterator MI) const;
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void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
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void emitPrologue(MachineFunction &MF) const;
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void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
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// Debug information queries.
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unsigned getFrameRegister(MachineFunction &MF) const;
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};
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} // End llvm namespace
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#endif
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