1 //===- ARCSubtarget.h - Define Subtarget for the ARC ------------*- 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 declares the ARC specific subclass of TargetSubtargetInfo.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_LIB_TARGET_ARC_ARCSUBTARGET_H
14 #define LLVM_LIB_TARGET_ARC_ARCSUBTARGET_H
15 
16 #include "ARCFrameLowering.h"
17 #include "ARCISelLowering.h"
18 #include "ARCInstrInfo.h"
19 #include "llvm/CodeGen/SelectionDAGTargetInfo.h"
20 #include "llvm/CodeGen/TargetSubtargetInfo.h"
21 #include <string>
22 
23 #define GET_SUBTARGETINFO_HEADER
24 #include "ARCGenSubtargetInfo.inc"
25 
26 namespace llvm {
27 
28 class StringRef;
29 class TargetMachine;
30 
31 class ARCSubtarget : public ARCGenSubtargetInfo {
32   virtual void anchor();
33   ARCInstrInfo InstrInfo;
34   ARCFrameLowering FrameLowering;
35   ARCTargetLowering TLInfo;
36   SelectionDAGTargetInfo TSInfo;
37 
38   // ARC processor extensions
39   bool Xnorm = false;
40 
41 public:
42   /// This constructor initializes the data members to match that
43   /// of the specified triple.
44   ARCSubtarget(const Triple &TT, const std::string &CPU, const std::string &FS,
45                const TargetMachine &TM);
46 
47   /// Parses features string setting specified subtarget options.
48   /// Definition of function is auto generated by tblgen.
49   void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS);
50 
51   const ARCInstrInfo *getInstrInfo() const override { return &InstrInfo; }
52   const ARCFrameLowering *getFrameLowering() const override {
53     return &FrameLowering;
54   }
55   const ARCTargetLowering *getTargetLowering() const override {
56     return &TLInfo;
57   }
58   const ARCRegisterInfo *getRegisterInfo() const override {
59     return &InstrInfo.getRegisterInfo();
60   }
61   const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
62     return &TSInfo;
63   }
64 
65   bool hasNorm() const { return Xnorm; }
66 };
67 
68 } // end namespace llvm
69 
70 #endif // LLVM_LIB_TARGET_ARC_ARCSUBTARGET_H
71