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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             : 
      17             : #include "llvm/CodeGen/TargetSubtargetInfo.h"
      18             : #include "llvm/IR/DataLayout.h"
      19             : #include "llvm/Target/TargetMachine.h"
      20             : 
      21             : #include "AVRFrameLowering.h"
      22             : #include "AVRISelLowering.h"
      23             : #include "AVRInstrInfo.h"
      24             : #include "AVRSelectionDAGInfo.h"
      25             : 
      26             : #define GET_SUBTARGETINFO_HEADER
      27             : #include "AVRGenSubtargetInfo.inc"
      28             : 
      29             : namespace llvm {
      30             : 
      31             : /// A specific AVR target MCU.
      32             : class AVRSubtarget : public AVRGenSubtargetInfo {
      33             : public:
      34             :   //! Creates an AVR subtarget.
      35             :   //! \param TT  The target triple.
      36             :   //! \param CPU The CPU to target.
      37             :   //! \param FS  The feature string.
      38             :   //! \param TM  The target machine.
      39             :   AVRSubtarget(const Triple &TT, const std::string &CPU, const std::string &FS,
      40             :                AVRTargetMachine &TM);
      41             : 
      42       43227 :   const AVRInstrInfo *getInstrInfo() const override { return &InstrInfo; }
      43        8510 :   const TargetFrameLowering *getFrameLowering() const override { return &FrameLowering; }
      44        6452 :   const AVRTargetLowering *getTargetLowering() const override { return &TLInfo; }
      45         304 :   const AVRSelectionDAGInfo *getSelectionDAGInfo() const override { return &TSInfo; }
      46      115586 :   const AVRRegisterInfo *getRegisterInfo() const override { return &InstrInfo.getRegisterInfo(); }
      47             : 
      48             :   /// Parses a subtarget feature string, setting appropriate options.
      49             :   /// \note Definition of function is auto generated by `tblgen`.
      50             :   void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
      51             : 
      52             :   // Subtarget feature getters.
      53             :   // See AVR.td for details.
      54           0 :   bool hasSRAM() const { return m_hasSRAM; }
      55           0 :   bool hasJMPCALL() const { return m_hasJMPCALL; }
      56             :   bool hasIJMPCALL() const { return m_hasIJMPCALL; }
      57             :   bool hasEIJMPCALL() const { return m_hasEIJMPCALL; }
      58           0 :   bool hasADDSUBIW() const { return m_hasADDSUBIW; }
      59             :   bool hasSmallStack() const { return m_hasSmallStack; }
      60           0 :   bool hasMOVW() const { return m_hasMOVW; }
      61             :   bool hasLPM() const { return m_hasLPM; }
      62             :   bool hasLPMX() const { return m_hasLPMX; }
      63             :   bool hasELPM() const { return m_hasELPM; }
      64             :   bool hasELPMX() const { return m_hasELPMX; }
      65             :   bool hasSPM() const { return m_hasSPM; }
      66             :   bool hasSPMX() const { return m_hasSPMX; }
      67             :   bool hasDES() const { return m_hasDES; }
      68             :   bool supportsRMW() const { return m_supportsRMW; }
      69             :   bool supportsMultiplication() const { return m_supportsMultiplication; }
      70             :   bool hasBREAK() const { return m_hasBREAK; }
      71             :   bool hasTinyEncoding() const { return m_hasTinyEncoding; }
      72             : 
      73             :   /// Gets the ELF architecture for the e_flags field
      74             :   /// of an ELF object file.
      75             :   unsigned getELFArch() const {
      76             :     assert(ELFArch != 0 &&
      77             :            "every device must have an associate ELF architecture");
      78             :     return ELFArch;
      79             :   }
      80             : 
      81             : private:
      82             :   AVRInstrInfo InstrInfo;
      83             :   AVRFrameLowering FrameLowering;
      84             :   AVRTargetLowering TLInfo;
      85             :   AVRSelectionDAGInfo TSInfo;
      86             : 
      87             :   // Subtarget feature settings
      88             :   // See AVR.td for details.
      89             :   bool m_hasSRAM;
      90             :   bool m_hasJMPCALL;
      91             :   bool m_hasIJMPCALL;
      92             :   bool m_hasEIJMPCALL;
      93             :   bool m_hasADDSUBIW;
      94             :   bool m_hasSmallStack;
      95             :   bool m_hasMOVW;
      96             :   bool m_hasLPM;
      97             :   bool m_hasLPMX;
      98             :   bool m_hasELPM;
      99             :   bool m_hasELPMX;
     100             :   bool m_hasSPM;
     101             :   bool m_hasSPMX;
     102             :   bool m_hasDES;
     103             :   bool m_supportsRMW;
     104             :   bool m_supportsMultiplication;
     105             :   bool m_hasBREAK;
     106             :   bool m_hasTinyEncoding;
     107             : 
     108             :   /// The ELF e_flags architecture.
     109             :   unsigned ELFArch;
     110             : 
     111             :   // Dummy member, used by FeatureSet's. We cannot have a SubtargetFeature with
     112             :   // no variable, so we instead bind pseudo features to this variable.
     113             :   bool m_FeatureSetDummy;
     114             : };
     115             : 
     116             : } // end namespace llvm
     117             : 
     118             : #endif // LLVM_AVR_SUBTARGET_H