1 //===-- X86SelectionDAGInfo.h - X86 SelectionDAG Info -----------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the X86 subclass for SelectionDAGTargetInfo.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_LIB_TARGET_X86_X86SELECTIONDAGINFO_H
15 #define LLVM_LIB_TARGET_X86_X86SELECTIONDAGINFO_H
17 #include "llvm/CodeGen/SelectionDAGTargetInfo.h"
18 #include "llvm/MC/MCRegisterInfo.h"
22 class X86TargetLowering;
23 class X86TargetMachine;
26 class X86SelectionDAGInfo : public SelectionDAGTargetInfo {
27 /// Returns true if it is possible for the base register to conflict with the
28 /// given set of clobbers for a memory intrinsic.
29 bool isBaseRegConflictPossible(SelectionDAG &DAG,
30 ArrayRef<MCPhysReg> ClobberSet) const;
33 explicit X86SelectionDAGInfo() = default;
35 SDValue EmitTargetCodeForMemset(SelectionDAG &DAG, const SDLoc &dl,
36 SDValue Chain, SDValue Dst, SDValue Src,
37 SDValue Size, unsigned Align, bool isVolatile,
38 MachinePointerInfo DstPtrInfo) const override;
40 SDValue EmitTargetCodeForMemcpy(SelectionDAG &DAG, const SDLoc &dl,
41 SDValue Chain, SDValue Dst, SDValue Src,
42 SDValue Size, unsigned Align, bool isVolatile,
44 MachinePointerInfo DstPtrInfo,
45 MachinePointerInfo SrcPtrInfo) const override;