1 //===-- X86SelectionDAGInfo.h - X86 SelectionDAG Info -----------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file defines the X86 subclass for SelectionDAGTargetInfo.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_LIB_TARGET_X86_X86SELECTIONDAGINFO_H
14 #define LLVM_LIB_TARGET_X86_X86SELECTIONDAGINFO_H
15 
16 #include "llvm/CodeGen/SelectionDAGTargetInfo.h"
17 
18 namespace llvm {
19 
20 class X86SelectionDAGInfo : public SelectionDAGTargetInfo {
21   /// Returns true if it is possible for the base register to conflict with the
22   /// given set of clobbers for a memory intrinsic.
23   bool isBaseRegConflictPossible(SelectionDAG &DAG,
24                                  ArrayRef<MCPhysReg> ClobberSet) const;
25 
26 public:
27   explicit X86SelectionDAGInfo() = default;
28 
29   SDValue EmitTargetCodeForMemset(SelectionDAG &DAG, const SDLoc &dl,
30                                   SDValue Chain, SDValue Dst, SDValue Src,
31                                   SDValue Size, Align Alignment,
32                                   bool isVolatile, bool AlwaysInline,
33                                   MachinePointerInfo DstPtrInfo) const override;
34 
35   SDValue EmitTargetCodeForMemcpy(SelectionDAG &DAG, const SDLoc &dl,
36                                   SDValue Chain, SDValue Dst, SDValue Src,
37                                   SDValue Size, Align Alignment,
38                                   bool isVolatile, bool AlwaysInline,
39                                   MachinePointerInfo DstPtrInfo,
40                                   MachinePointerInfo SrcPtrInfo) const override;
41 };
42 
43 }
44 
45 #endif
46