LLVM  9.0.0svn
MSP430Subtarget.h
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1 //===-- MSP430Subtarget.h - Define Subtarget for the MSP430 ----*- 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 MSP430 specific subclass of TargetSubtargetInfo.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_LIB_TARGET_MSP430_MSP430SUBTARGET_H
14 #define LLVM_LIB_TARGET_MSP430_MSP430SUBTARGET_H
15 
16 #include "MSP430FrameLowering.h"
17 #include "MSP430ISelLowering.h"
18 #include "MSP430InstrInfo.h"
19 #include "MSP430RegisterInfo.h"
22 #include "llvm/IR/DataLayout.h"
23 #include <string>
24 
25 #define GET_SUBTARGETINFO_HEADER
26 #include "MSP430GenSubtargetInfo.inc"
27 
28 namespace llvm {
29 class StringRef;
30 
32 public:
33  enum HWMultEnum {
35  };
36 
37 private:
38  virtual void anchor();
39  bool ExtendedInsts;
40  HWMultEnum HWMultMode;
41  MSP430FrameLowering FrameLowering;
42  MSP430InstrInfo InstrInfo;
43  MSP430TargetLowering TLInfo;
45 
46 public:
47  /// This constructor initializes the data members to match that
48  /// of the specified triple.
49  ///
50  MSP430Subtarget(const Triple &TT, const std::string &CPU,
51  const std::string &FS, const TargetMachine &TM);
52 
54 
55  /// ParseSubtargetFeatures - Parses features string setting specified
56  /// subtarget options. Definition of function is auto generated by tblgen.
58 
59  bool hasHWMult16() const { return HWMultMode == HWMult16; }
60  bool hasHWMult32() const { return HWMultMode == HWMult32; }
61  bool hasHWMultF5() const { return HWMultMode == HWMultF5; }
62 
63  const TargetFrameLowering *getFrameLowering() const override {
64  return &FrameLowering;
65  }
66  const MSP430InstrInfo *getInstrInfo() const override { return &InstrInfo; }
67  const TargetRegisterInfo *getRegisterInfo() const override {
68  return &InstrInfo.getRegisterInfo();
69  }
70  const MSP430TargetLowering *getTargetLowering() const override {
71  return &TLInfo;
72  }
73  const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
74  return &TSInfo;
75  }
76 };
77 } // End llvm namespace
78 
79 #endif // LLVM_TARGET_MSP430_SUBTARGET_H
This class represents lattice values for constants.
Definition: AllocatorList.h:23
bool hasHWMult16() const
bool hasHWMult32() const
const TargetRegisterInfo * getRegisterInfo() const override
MSP430Subtarget & initializeSubtargetDependencies(StringRef CPU, StringRef FS)
Targets can subclass this to parameterize the SelectionDAG lowering and instruction selection process...
TargetRegisterInfo base class - We assume that the target defines a static array of TargetRegisterDes...
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:43
const MSP430TargetLowering * getTargetLowering() const override
const SelectionDAGTargetInfo * getSelectionDAGInfo() const override
Information about stack frame layout on the target.
bool hasHWMultF5() const
const MSP430InstrInfo * getInstrInfo() const override
MSP430Subtarget(const Triple &TT, const std::string &CPU, const std::string &FS, const TargetMachine &TM)
This constructor initializes the data members to match that of the specified triple.
const TargetFrameLowering * getFrameLowering() const override
Primary interface to the complete machine description for the target machine.
Definition: TargetMachine.h:65
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:48
void ParseSubtargetFeatures(StringRef CPU, StringRef FS)
ParseSubtargetFeatures - Parses features string setting specified subtarget options.
const TargetRegisterInfo & getRegisterInfo() const
getRegisterInfo - TargetInstrInfo is a superset of MRegister info.