Imported Upstream version 1.0.0+dfsg1

[rustc.git] / src / llvm / lib / Target / X86 / X86SelectionDAGInfo.h

//===-- X86SelectionDAGInfo.h - X86 SelectionDAG Info -----------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the X86 subclass for TargetSelectionDAGInfo.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_X86_X86SELECTIONDAGINFO_H
#define LLVM_LIB_TARGET_X86_X86SELECTIONDAGINFO_H

#include "llvm/Target/TargetSelectionDAGInfo.h"

namespace llvm {

class X86TargetLowering;
class X86TargetMachine;
class X86Subtarget;

class X86SelectionDAGInfo : public TargetSelectionDAGInfo {
  /// Returns true if it is possible for the base register to conflict with the
  /// given set of clobbers for a memory intrinsic.
  bool isBaseRegConflictPossible(SelectionDAG &DAG,
                                 ArrayRef<unsigned> ClobberSet) const;

public:
  explicit X86SelectionDAGInfo(const DataLayout &DL);
  ~X86SelectionDAGInfo();

  SDValue EmitTargetCodeForMemset(SelectionDAG &DAG, SDLoc dl,
                                  SDValue Chain,
                                  SDValue Dst, SDValue Src,
                                  SDValue Size, unsigned Align,
                                  bool isVolatile,
                                  MachinePointerInfo DstPtrInfo) const override;

  SDValue EmitTargetCodeForMemcpy(SelectionDAG &DAG, SDLoc dl,
                                  SDValue Chain,
                                  SDValue Dst, SDValue Src,
                                  SDValue Size, unsigned Align,
                                  bool isVolatile, bool AlwaysInline,
                                  MachinePointerInfo DstPtrInfo,
                                  MachinePointerInfo SrcPtrInfo) const override;
};

}

#endif