1 //===-- AVRSubtarget.h - Define Subtarget for the AVR -----------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares the AVR specific subclass of TargetSubtargetInfo.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_AVR_SUBTARGET_H
15 #define LLVM_AVR_SUBTARGET_H
17 #include "llvm/Target/TargetSubtargetInfo.h"
18 #include "llvm/IR/DataLayout.h"
19 #include "llvm/IR/DataLayout.h"
20 #include "llvm/Target/TargetMachine.h"
22 #include "AVRFrameLowering.h"
23 #include "AVRISelLowering.h"
24 #include "AVRInstrInfo.h"
25 #include "AVRSelectionDAGInfo.h"
27 #define GET_SUBTARGETINFO_HEADER
28 #include "AVRGenSubtargetInfo.inc"
32 /// A specific AVR target MCU.
33 class AVRSubtarget : public AVRGenSubtargetInfo {
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,
41 AVRTargetMachine &TM);
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(); }
49 /// Parses a subtarget feature string, setting appropriate options.
50 /// \note Definition of function is auto generated by `tblgen`.
51 void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
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; }
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");
83 AVRInstrInfo InstrInfo;
84 AVRFrameLowering FrameLowering;
85 AVRTargetLowering TLInfo;
86 AVRSelectionDAGInfo TSInfo;
88 // Subtarget feature settings
89 // See AVR.td for details.
105 bool m_supportsMultiplication;
107 bool m_hasTinyEncoding;
109 /// The ELF e_flags architecture.
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;
117 } // end namespace llvm
119 #endif // LLVM_AVR_SUBTARGET_H