LLVM  9.0.0svn
AVRSubtarget.h
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1 //===-- AVRSubtarget.h - Define Subtarget for the AVR -----------*- 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 AVR specific subclass of TargetSubtargetInfo.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_AVR_SUBTARGET_H
14 #define LLVM_AVR_SUBTARGET_H
15 
17 #include "llvm/IR/DataLayout.h"
19 
20 #include "AVRFrameLowering.h"
21 #include "AVRISelLowering.h"
22 #include "AVRInstrInfo.h"
23 #include "AVRSelectionDAGInfo.h"
24 
25 #define GET_SUBTARGETINFO_HEADER
26 #include "AVRGenSubtargetInfo.inc"
27 
28 namespace llvm {
29 
30 /// A specific AVR target MCU.
32 public:
33  //! Creates an AVR subtarget.
34  //! \param TT The target triple.
35  //! \param CPU The CPU to target.
36  //! \param FS The feature string.
37  //! \param TM The target machine.
38  AVRSubtarget(const Triple &TT, const std::string &CPU, const std::string &FS,
39  const AVRTargetMachine &TM);
40 
41  const AVRInstrInfo *getInstrInfo() const override { return &InstrInfo; }
42  const TargetFrameLowering *getFrameLowering() const override { return &FrameLowering; }
43  const AVRTargetLowering *getTargetLowering() const override { return &TLInfo; }
44  const AVRSelectionDAGInfo *getSelectionDAGInfo() const override { return &TSInfo; }
45  const AVRRegisterInfo *getRegisterInfo() const override { return &InstrInfo.getRegisterInfo(); }
46 
47  /// Parses a subtarget feature string, setting appropriate options.
48  /// \note Definition of function is auto generated by `tblgen`.
50 
52  const TargetMachine &TM);
53 
54  // Subtarget feature getters.
55  // See AVR.td for details.
56  bool hasSRAM() const { return m_hasSRAM; }
57  bool hasJMPCALL() const { return m_hasJMPCALL; }
58  bool hasIJMPCALL() const { return m_hasIJMPCALL; }
59  bool hasEIJMPCALL() const { return m_hasEIJMPCALL; }
60  bool hasADDSUBIW() const { return m_hasADDSUBIW; }
61  bool hasSmallStack() const { return m_hasSmallStack; }
62  bool hasMOVW() const { return m_hasMOVW; }
63  bool hasLPM() const { return m_hasLPM; }
64  bool hasLPMX() const { return m_hasLPMX; }
65  bool hasELPM() const { return m_hasELPM; }
66  bool hasELPMX() const { return m_hasELPMX; }
67  bool hasSPM() const { return m_hasSPM; }
68  bool hasSPMX() const { return m_hasSPMX; }
69  bool hasDES() const { return m_hasDES; }
70  bool supportsRMW() const { return m_supportsRMW; }
71  bool supportsMultiplication() const { return m_supportsMultiplication; }
72  bool hasBREAK() const { return m_hasBREAK; }
73  bool hasTinyEncoding() const { return m_hasTinyEncoding; }
74 
75  /// Gets the ELF architecture for the e_flags field
76  /// of an ELF object file.
77  unsigned getELFArch() const {
78  assert(ELFArch != 0 &&
79  "every device must have an associate ELF architecture");
80  return ELFArch;
81  }
82 
83 private:
84  AVRInstrInfo InstrInfo;
85  AVRFrameLowering FrameLowering;
86  AVRTargetLowering TLInfo;
87  AVRSelectionDAGInfo TSInfo;
88 
89  // Subtarget feature settings
90  // See AVR.td for details.
91  bool m_hasSRAM;
92  bool m_hasJMPCALL;
93  bool m_hasIJMPCALL;
94  bool m_hasEIJMPCALL;
95  bool m_hasADDSUBIW;
96  bool m_hasSmallStack;
97  bool m_hasMOVW;
98  bool m_hasLPM;
99  bool m_hasLPMX;
100  bool m_hasELPM;
101  bool m_hasELPMX;
102  bool m_hasSPM;
103  bool m_hasSPMX;
104  bool m_hasDES;
105  bool m_supportsRMW;
106  bool m_supportsMultiplication;
107  bool m_hasBREAK;
108  bool m_hasTinyEncoding;
109 
110  /// The ELF e_flags architecture.
111  unsigned ELFArch;
112 
113  // Dummy member, used by FeatureSet's. We cannot have a SubtargetFeature with
114  // no variable, so we instead bind pseudo features to this variable.
115  bool m_FeatureSetDummy;
116 };
117 
118 } // end namespace llvm
119 
120 #endif // LLVM_AVR_SUBTARGET_H
const AVRInstrInfo * getInstrInfo() const override
Definition: AVRSubtarget.h:41
unsigned getELFArch() const
Gets the ELF architecture for the e_flags field of an ELF object file.
Definition: AVRSubtarget.h:77
bool hasELPMX() const
Definition: AVRSubtarget.h:66
bool hasSPMX() const
Definition: AVRSubtarget.h:68
This class represents lattice values for constants.
Definition: AllocatorList.h:23
bool hasLPMX() const
Definition: AVRSubtarget.h:64
const AVRSelectionDAGInfo * getSelectionDAGInfo() const override
Definition: AVRSubtarget.h:44
bool hasDES() const
Definition: AVRSubtarget.h:69
Utilities relating to AVR registers.
const AVRTargetLowering * getTargetLowering() const override
Definition: AVRSubtarget.h:43
bool hasSPM() const
Definition: AVRSubtarget.h:67
A generic AVR implementation.
Utilities related to the AVR instruction set.
Definition: AVRInstrInfo.h:64
void ParseSubtargetFeatures(StringRef CPU, StringRef FS)
Parses a subtarget feature string, setting appropriate options.
bool hasMOVW() const
Definition: AVRSubtarget.h:62
bool hasADDSUBIW() const
Definition: AVRSubtarget.h:60
bool hasTinyEncoding() const
Definition: AVRSubtarget.h:73
bool hasJMPCALL() const
Definition: AVRSubtarget.h:57
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:43
Holds information about the AVR instruction selection DAG.
bool hasBREAK() const
Definition: AVRSubtarget.h:72
bool hasSmallStack() const
Definition: AVRSubtarget.h:61
Performs target lowering for the AVR.
Information about stack frame layout on the target.
bool hasLPM() const
Definition: AVRSubtarget.h:63
A specific AVR target MCU.
Definition: AVRSubtarget.h:31
AVRSubtarget & initializeSubtargetDependencies(StringRef CPU, StringRef FS, const TargetMachine &TM)
Utilities for creating function call frames.
bool hasSRAM() const
Definition: AVRSubtarget.h:56
AVRSubtarget(const Triple &TT, const std::string &CPU, const std::string &FS, const AVRTargetMachine &TM)
Creates an AVR subtarget.
bool supportsRMW() const
Definition: AVRSubtarget.h:70
const AVRRegisterInfo & getRegisterInfo() const
Definition: AVRInstrInfo.h:68
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
const TargetFrameLowering * getFrameLowering() const override
Definition: AVRSubtarget.h:42
const AVRRegisterInfo * getRegisterInfo() const override
Definition: AVRSubtarget.h:45
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
bool hasIJMPCALL() const
Definition: AVRSubtarget.h:58
bool supportsMultiplication() const
Definition: AVRSubtarget.h:71
bool hasEIJMPCALL() const
Definition: AVRSubtarget.h:59
bool hasELPM() const
Definition: AVRSubtarget.h:65