| //===-- AVRSubtarget.h - Define Subtarget for the AVR -----------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file declares the AVR specific subclass of TargetSubtargetInfo. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_AVR_SUBTARGET_H |
| #define LLVM_AVR_SUBTARGET_H |
| |
| #include "llvm/CodeGen/TargetSubtargetInfo.h" |
| #include "llvm/IR/DataLayout.h" |
| #include "llvm/Target/TargetMachine.h" |
| |
| #include "AVRFrameLowering.h" |
| #include "AVRISelLowering.h" |
| #include "AVRInstrInfo.h" |
| #include "AVRSelectionDAGInfo.h" |
| |
| #define GET_SUBTARGETINFO_HEADER |
| #include "AVRGenSubtargetInfo.inc" |
| |
| namespace llvm { |
| |
| /// A specific AVR target MCU. |
| class AVRSubtarget : public AVRGenSubtargetInfo { |
| public: |
| //! Creates an AVR subtarget. |
| //! \param TT The target triple. |
| //! \param CPU The CPU to target. |
| //! \param FS The feature string. |
| //! \param TM The target machine. |
| AVRSubtarget(const Triple &TT, const std::string &CPU, const std::string &FS, |
| const AVRTargetMachine &TM); |
| |
| const AVRInstrInfo *getInstrInfo() const override { return &InstrInfo; } |
| const TargetFrameLowering *getFrameLowering() const override { |
| return &FrameLowering; |
| } |
| const AVRTargetLowering *getTargetLowering() const override { |
| return &TLInfo; |
| } |
| const AVRSelectionDAGInfo *getSelectionDAGInfo() const override { |
| return &TSInfo; |
| } |
| const AVRRegisterInfo *getRegisterInfo() const override { |
| return &InstrInfo.getRegisterInfo(); |
| } |
| |
| /// Parses a subtarget feature string, setting appropriate options. |
| /// \note Definition of function is auto generated by `tblgen`. |
| void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS); |
| |
| AVRSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS, |
| const TargetMachine &TM); |
| |
| // Subtarget feature getters. |
| // See AVR.td for details. |
| bool hasSRAM() const { return m_hasSRAM; } |
| bool hasJMPCALL() const { return m_hasJMPCALL; } |
| bool hasIJMPCALL() const { return m_hasIJMPCALL; } |
| bool hasEIJMPCALL() const { return m_hasEIJMPCALL; } |
| bool hasADDSUBIW() const { return m_hasADDSUBIW; } |
| bool hasSmallStack() const { return m_hasSmallStack; } |
| bool hasMOVW() const { return m_hasMOVW; } |
| bool hasLPM() const { return m_hasLPM; } |
| bool hasLPMX() const { return m_hasLPMX; } |
| bool hasELPM() const { return m_hasELPM; } |
| bool hasELPMX() const { return m_hasELPMX; } |
| bool hasSPM() const { return m_hasSPM; } |
| bool hasSPMX() const { return m_hasSPMX; } |
| bool hasDES() const { return m_hasDES; } |
| bool supportsRMW() const { return m_supportsRMW; } |
| bool supportsMultiplication() const { return m_supportsMultiplication; } |
| bool hasBREAK() const { return m_hasBREAK; } |
| bool hasTinyEncoding() const { return m_hasTinyEncoding; } |
| bool hasMemMappedGPR() const { return m_hasMemMappedGPR; } |
| |
| uint8_t getIORegisterOffset() const { return hasMemMappedGPR() ? 0x20 : 0x0; } |
| |
| /// Gets the ELF architecture for the e_flags field |
| /// of an ELF object file. |
| unsigned getELFArch() const { |
| assert(ELFArch != 0 && |
| "every device must have an associate ELF architecture"); |
| return ELFArch; |
| } |
| |
| private: |
| /// The ELF e_flags architecture. |
| unsigned ELFArch; |
| |
| // Subtarget feature settings |
| // See AVR.td for details. |
| bool m_hasSRAM; |
| bool m_hasJMPCALL; |
| bool m_hasIJMPCALL; |
| bool m_hasEIJMPCALL; |
| bool m_hasADDSUBIW; |
| bool m_hasSmallStack; |
| bool m_hasMOVW; |
| bool m_hasLPM; |
| bool m_hasLPMX; |
| bool m_hasELPM; |
| bool m_hasELPMX; |
| bool m_hasSPM; |
| bool m_hasSPMX; |
| bool m_hasDES; |
| bool m_supportsRMW; |
| bool m_supportsMultiplication; |
| bool m_hasBREAK; |
| bool m_hasTinyEncoding; |
| bool m_hasMemMappedGPR; |
| |
| // Dummy member, used by FeatureSet's. We cannot have a SubtargetFeature with |
| // no variable, so we instead bind pseudo features to this variable. |
| bool m_FeatureSetDummy; |
| |
| AVRInstrInfo InstrInfo; |
| AVRFrameLowering FrameLowering; |
| AVRTargetLowering TLInfo; |
| AVRSelectionDAGInfo TSInfo; |
| }; |
| |
| } // end namespace llvm |
| |
| #endif // LLVM_AVR_SUBTARGET_H |