LLVM  4.0.0
AVRSubtarget.h
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1 //===-- AVRSubtarget.h - Define Subtarget for the AVR -----------*- 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 declares the AVR specific subclass of TargetSubtargetInfo.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_AVR_SUBTARGET_H
15 #define LLVM_AVR_SUBTARGET_H
16 
18 #include "llvm/IR/DataLayout.h"
19 #include "llvm/IR/DataLayout.h"
21 
22 #include "AVRFrameLowering.h"
23 #include "AVRISelLowering.h"
24 #include "AVRInstrInfo.h"
25 #include "AVRSelectionDAGInfo.h"
26 
27 #define GET_SUBTARGETINFO_HEADER
28 #include "AVRGenSubtargetInfo.inc"
29 
30 namespace llvm {
31 
32 /// A specific AVR target MCU.
34 public:
35  //! Creates an AVR subtarget.
36  //! \param TT The target triple.
37  //! \param CPU The CPU to target.
38  //! \param FS The feature string.
39  //! \param TM The target machine.
40  AVRSubtarget(const Triple &TT, const std::string &CPU, const std::string &FS,
42 
43  const AVRInstrInfo *getInstrInfo() const override { return &InstrInfo; }
44  const TargetFrameLowering *getFrameLowering() const override { return &FrameLowering; }
45  const AVRTargetLowering *getTargetLowering() const override { return &TLInfo; }
46  const AVRSelectionDAGInfo *getSelectionDAGInfo() const override { return &TSInfo; }
47  const AVRRegisterInfo *getRegisterInfo() const override { return &InstrInfo.getRegisterInfo(); }
48 
49  /// Parses a subtarget feature string, setting appropriate options.
50  /// \note Definition of function is auto generated by `tblgen`.
52 
53  // Subtarget feature getters.
54  // See AVR.td for details.
55  bool hasSRAM() const { return m_hasSRAM; }
56  bool hasJMPCALL() const { return m_hasJMPCALL; }
57  bool hasIJMPCALL() const { return m_hasIJMPCALL; }
58  bool hasEIJMPCALL() const { return m_hasEIJMPCALL; }
59  bool hasADDSUBIW() const { return m_hasADDSUBIW; }
60  bool hasSmallStack() const { return m_hasSmallStack; }
61  bool hasMOVW() const { return m_hasMOVW; }
62  bool hasLPM() const { return m_hasLPM; }
63  bool hasLPMX() const { return m_hasLPMX; }
64  bool hasELPM() const { return m_hasELPM; }
65  bool hasELPMX() const { return m_hasELPMX; }
66  bool hasSPM() const { return m_hasSPM; }
67  bool hasSPMX() const { return m_hasSPMX; }
68  bool hasDES() const { return m_hasDES; }
69  bool supportsRMW() const { return m_supportsRMW; }
70  bool supportsMultiplication() const { return m_supportsMultiplication; }
71  bool hasBREAK() const { return m_hasBREAK; }
72  bool hasTinyEncoding() const { return m_hasTinyEncoding; }
73 
74  /// Gets the ELF architecture for the e_flags field
75  /// of an ELF object file.
76  unsigned getELFArch() const {
77  assert(ELFArch != 0 &&
78  "every device must have an associate ELF architecture");
79  return ELFArch;
80  }
81 
82 private:
83  AVRInstrInfo InstrInfo;
84  AVRFrameLowering FrameLowering;
85  AVRTargetLowering TLInfo;
86  AVRSelectionDAGInfo TSInfo;
87 
88  // Subtarget feature settings
89  // See AVR.td for details.
90  bool m_hasSRAM;
91  bool m_hasJMPCALL;
92  bool m_hasIJMPCALL;
93  bool m_hasEIJMPCALL;
94  bool m_hasADDSUBIW;
95  bool m_hasSmallStack;
96  bool m_hasMOVW;
97  bool m_hasLPM;
98  bool m_hasLPMX;
99  bool m_hasELPM;
100  bool m_hasELPMX;
101  bool m_hasSPM;
102  bool m_hasSPMX;
103  bool m_hasDES;
104  bool m_supportsRMW;
105  bool m_supportsMultiplication;
106  bool m_hasBREAK;
107  bool m_hasTinyEncoding;
108 
109  /// The ELF e_flags architecture.
110  unsigned ELFArch;
111 
112  // Dummy member, used by FeatureSet's. We cannot have a SubtargetFeature with
113  // no variable, so we instead bind pseudo features to this variable.
114  bool m_FeatureSetDummy;
115 };
116 
117 } // end namespace llvm
118 
119 #endif // LLVM_AVR_SUBTARGET_H
const AVRInstrInfo * getInstrInfo() const override
Definition: AVRSubtarget.h:43
bool hasDES() const
Definition: AVRSubtarget.h:68
bool hasIJMPCALL() const
Definition: AVRSubtarget.h:57
bool hasLPM() const
Definition: AVRSubtarget.h:62
const AVRSelectionDAGInfo * getSelectionDAGInfo() const override
Definition: AVRSubtarget.h:46
bool hasSPM() const
Definition: AVRSubtarget.h:66
bool hasSmallStack() const
Definition: AVRSubtarget.h:60
Utilities relating to AVR registers.
bool hasELPMX() const
Definition: AVRSubtarget.h:65
const AVRRegisterInfo & getRegisterInfo() const
Definition: AVRInstrInfo.h:69
const AVRTargetLowering * getTargetLowering() const override
Definition: AVRSubtarget.h:45
bool supportsRMW() const
Definition: AVRSubtarget.h:69
A generic AVR implementation.
Utilities related to the AVR instruction set.
Definition: AVRInstrInfo.h:65
bool hasELPM() const
Definition: AVRSubtarget.h:64
void ParseSubtargetFeatures(StringRef CPU, StringRef FS)
Parses a subtarget feature string, setting appropriate options.
bool hasSPMX() const
Definition: AVRSubtarget.h:67
bool hasBREAK() const
Definition: AVRSubtarget.h:71
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
bool hasJMPCALL() const
Definition: AVRSubtarget.h:56
unsigned getELFArch() const
Gets the ELF architecture for the e_flags field of an ELF object file.
Definition: AVRSubtarget.h:76
bool hasEIJMPCALL() const
Definition: AVRSubtarget.h:58
Holds information about the AVR instruction selection DAG.
Performs target lowering for the AVR.
Information about stack frame layout on the target.
A specific AVR target MCU.
Definition: AVRSubtarget.h:33
bool hasLPMX() const
Definition: AVRSubtarget.h:63
AVRSubtarget(const Triple &TT, const std::string &CPU, const std::string &FS, AVRTargetMachine &TM)
Creates an AVR subtarget.
bool supportsMultiplication() const
Definition: AVRSubtarget.h:70
Utilities for creating function call frames.
bool hasADDSUBIW() const
Definition: AVRSubtarget.h:59
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
const TargetFrameLowering * getFrameLowering() const override
Definition: AVRSubtarget.h:44
bool hasMOVW() const
Definition: AVRSubtarget.h:61
const AVRRegisterInfo * getRegisterInfo() const override
Definition: AVRSubtarget.h:47
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:47
bool hasTinyEncoding() const
Definition: AVRSubtarget.h:72
bool hasSRAM() const
Definition: AVRSubtarget.h:55