XtensaSubtarget.h

//===-- XtensaSubtarget.h - Define Subtarget for the Xtensa ----*- 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 Xtensa specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_XTENSA_XTENSASUBTARGET_H
#define LLVM_LIB_TARGET_XTENSA_XTENSASUBTARGET_H

#include "XtensaFrameLowering.h"
#include "XtensaISelLowering.h"
#include "XtensaInstrInfo.h"
#include "XtensaRegisterInfo.h"
#include "llvm/CodeGen/SelectionDAGTargetInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/Target/TargetMachine.h"

#define GET_SUBTARGETINFO_HEADER
#include "XtensaGenSubtargetInfo.inc"

namespace llvm {
class StringRef;

class XtensaSubtarget : public XtensaGenSubtargetInfo {
private:
  const Triple &TargetTriple;
  XtensaInstrInfo InstrInfo;
  XtensaTargetLowering TLInfo;
  SelectionDAGTargetInfo TSInfo;
  XtensaFrameLowering FrameLowering;

  // Enabled Xtensa Density extension
  bool HasDensity;

  XtensaSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);

public:
  XtensaSubtarget(const Triple &TT, StringRef CPU, StringRef FS,
                  const TargetMachine &TM);

  const Triple &getTargetTriple() const { return TargetTriple; }

  const TargetFrameLowering *getFrameLowering() const override {
    return &FrameLowering;
  }
  const XtensaInstrInfo *getInstrInfo() const override { return &InstrInfo; }
  const XtensaRegisterInfo *getRegisterInfo() const override {
    return &InstrInfo.getRegisterInfo();
  }

  const XtensaTargetLowering *getTargetLowering() const override {
    return &TLInfo;
  }
  const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
    return &TSInfo;
  }

  bool hasDensity() const { return HasDensity; }

  // Automatically generated by tblgen.
  void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS);
};
} // end namespace llvm

#endif /* LLVM_LIB_TARGET_XTENSA_XTENSASUBTARGET_H */