MSP430Subtarget.h

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//===-- MSP430Subtarget.h - Define Subtarget for the MSP430 ----*- 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 MSP430 specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//
 
#ifndef LLVM_LIB_TARGET_MSP430_MSP430SUBTARGET_H
#define LLVM_LIB_TARGET_MSP430_MSP430SUBTARGET_H
 
#include "MSP430FrameLowering.h"
#include "MSP430ISelLowering.h"
#include "MSP430InstrInfo.h"
#include "MSP430RegisterInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/IR/DataLayout.h"
#include <string>
 
namespace llvm::MSP430 {
enum class HWMult { None, HW16, HW32, F5 };
} // namespace llvm::MSP430
 
#define OPTIONS_STRUCT_DECL
#include "MSP430Options.inc"
 
#define GET_SUBTARGETINFO_HEADER
#include "MSP430GenSubtargetInfo.inc"
 
namespace llvm {
class MSP430TargetMachine;
class StringRef;
 
class MSP430Subtarget : public MSP430GenSubtargetInfo {
  const MSP430Options &CLOpts;
  virtual void anchor();
  bool ExtendedInsts = false;
  MSP430::HWMult HWMultMode = MSP430::HWMult::None;
  MSP430InstrInfo InstrInfo;
  MSP430TargetLowering TLInfo;
  std::unique_ptr<const SelectionDAGTargetInfo> TSInfo;
  MSP430FrameLowering FrameLowering;
 
public:
  /// This constructor initializes the data members to match that
  /// of the specified triple.
  ///
  MSP430Subtarget(const Triple &TT, const std::string &CPU,
                  const std::string &FS, const MSP430TargetMachine &TM);
 
  ~MSP430Subtarget() override;
 
  const MSP430Options &getCLOpts() const { return CLOpts; }
 
  MSP430Subtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
 
  /// ParseSubtargetFeatures - Parses features string setting specified
  /// subtarget options.  Definition of function is auto generated by tblgen.
  void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS);
 
  bool hasHWMult16() const { return HWMultMode == MSP430::HWMult::HW16; }
  bool hasHWMult32() const { return HWMultMode == MSP430::HWMult::HW32; }
  bool hasHWMultF5() const { return HWMultMode == MSP430::HWMult::F5; }
 
  const TargetFrameLowering *getFrameLowering() const override {
    return &FrameLowering;
  }
  const MSP430InstrInfo *getInstrInfo() const override { return &InstrInfo; }
  const MSP430RegisterInfo *getRegisterInfo() const override {
    return &getInstrInfo()->getRegisterInfo();
  }
 
  const MSP430TargetLowering *getTargetLowering() const override {
    return &TLInfo;
  }
 
  const SelectionDAGTargetInfo *getSelectionDAGInfo() const override;
 
  void initLibcallLoweringInfo(LibcallLoweringInfo &Info) const override;
};
} // End llvm namespace
 
#endif  // LLVM_TARGET_MSP430_SUBTARGET_H