[SystemZ] Use SRST to implement strlen and strnlen
[oota-llvm.git] / lib / Target / SystemZ / SystemZSelectionDAGInfo.h
1 //===-- SystemZSelectionDAGInfo.h - SystemZ SelectionDAG Info ---*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file defines the SystemZ subclass for TargetSelectionDAGInfo.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #ifndef SYSTEMZSELECTIONDAGINFO_H
15 #define SYSTEMZSELECTIONDAGINFO_H
16
17 #include "llvm/Target/TargetSelectionDAGInfo.h"
18
19 namespace llvm {
20
21 class SystemZTargetMachine;
22
23 class SystemZSelectionDAGInfo : public TargetSelectionDAGInfo {
24 public:
25   explicit SystemZSelectionDAGInfo(const SystemZTargetMachine &TM);
26   ~SystemZSelectionDAGInfo();
27
28   virtual
29   SDValue EmitTargetCodeForMemcpy(SelectionDAG &DAG, SDLoc DL, SDValue Chain,
30                                   SDValue Dst, SDValue Src,
31                                   SDValue Size, unsigned Align,
32                                   bool IsVolatile, bool AlwaysInline,
33                                   MachinePointerInfo DstPtrInfo,
34                                   MachinePointerInfo SrcPtrInfo) const
35     LLVM_OVERRIDE;
36
37   virtual SDValue
38   EmitTargetCodeForMemset(SelectionDAG &DAG, SDLoc DL,
39                           SDValue Chain, SDValue Dst, SDValue Byte,
40                           SDValue Size, unsigned Align, bool IsVolatile,
41                           MachinePointerInfo DstPtrInfo) const LLVM_OVERRIDE;
42
43   virtual std::pair<SDValue, SDValue>
44   EmitTargetCodeForMemcmp(SelectionDAG &DAG, SDLoc DL, SDValue Chain,
45                           SDValue Src1, SDValue Src2, SDValue Size,
46                           MachinePointerInfo Op1PtrInfo,
47                           MachinePointerInfo Op2PtrInfo) const LLVM_OVERRIDE;
48
49   virtual std::pair<SDValue, SDValue>
50   EmitTargetCodeForStrcpy(SelectionDAG &DAG, SDLoc DL, SDValue Chain,
51                           SDValue Dest, SDValue Src,
52                           MachinePointerInfo DestPtrInfo,
53                           MachinePointerInfo SrcPtrInfo,
54                           bool isStpcpy) const LLVM_OVERRIDE;
55
56   virtual std::pair<SDValue, SDValue>
57   EmitTargetCodeForStrcmp(SelectionDAG &DAG, SDLoc DL, SDValue Chain,
58                           SDValue Src1, SDValue Src2,
59                           MachinePointerInfo Op1PtrInfo,
60                           MachinePointerInfo Op2PtrInfo) const LLVM_OVERRIDE;
61
62   virtual std::pair<SDValue, SDValue>
63   EmitTargetCodeForStrlen(SelectionDAG &DAG, SDLoc DL, SDValue Chain,
64                           SDValue Src, MachinePointerInfo SrcPtrInfo) const
65     LLVM_OVERRIDE;
66
67   virtual std::pair<SDValue, SDValue>
68   EmitTargetCodeForStrnlen(SelectionDAG &DAG, SDLoc DL, SDValue Chain,
69                            SDValue Src, SDValue MaxLength,
70                            MachinePointerInfo SrcPtrInfo) const LLVM_OVERRIDE;
71 };
72
73 }
74
75 #endif