llvm/lib/Target/MSP430/MSP430Subtarget.h

   1 //===-- MSP430Subtarget.h - Define Subtarget for the MSP430 ----*- C++ -*--===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file declares the MSP430 specific subclass of TargetSubtargetInfo.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #ifndef LLVM_LIB_TARGET_MSP430_MSP430SUBTARGET_H
  14 #define LLVM_LIB_TARGET_MSP430_MSP430SUBTARGET_H
  15
  16 #include "MSP430FrameLowering.h"
  17 #include "MSP430ISelLowering.h"
  18 #include "MSP430InstrInfo.h"
  19 #include "MSP430RegisterInfo.h"
  20 #include "llvm/CodeGen/SelectionDAGTargetInfo.h"
  21 #include "llvm/CodeGen/TargetSubtargetInfo.h"
  22 #include "llvm/IR/DataLayout.h"
  23 #include <string>
  24
  25 #define GET_SUBTARGETINFO_HEADER
  26 #include "MSP430GenSubtargetInfo.inc"
  27
  28 namespace llvm {
  29 class StringRef;
  30
  31 class MSP430Subtarget : public MSP430GenSubtargetInfo {
  32 public:
  33   enum HWMultEnum {
  34     NoHWMult, HWMult16, HWMult32, HWMultF5
  35   };
  36
  37 private:
  38   virtual void anchor();
  39   bool ExtendedInsts = false;
  40   HWMultEnum HWMultMode = NoHWMult;
  41   MSP430InstrInfo InstrInfo;
  42   MSP430TargetLowering TLInfo;
  43   SelectionDAGTargetInfo TSInfo;
  44   MSP430FrameLowering FrameLowering;
  45
  46 public:
  47   /// This constructor initializes the data members to match that
  48   /// of the specified triple.
  49   ///
  50   MSP430Subtarget(const Triple &TT, const std::string &CPU,
  51                   const std::string &FS, const TargetMachine &TM);
  52
  53   MSP430Subtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
  54
  55   /// ParseSubtargetFeatures - Parses features string setting specified
  56   /// subtarget options.  Definition of function is auto generated by tblgen.
  57   void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS);
  58
  59   bool hasHWMult16() const { return HWMultMode == HWMult16; }
  60   bool hasHWMult32() const { return HWMultMode == HWMult32; }
  61   bool hasHWMultF5() const { return HWMultMode == HWMultF5; }
  62
  63   const TargetFrameLowering *getFrameLowering() const override {
  64     return &FrameLowering;
  65   }
  66   const MSP430InstrInfo *getInstrInfo() const override { return &InstrInfo; }
  67   const MSP430RegisterInfo *getRegisterInfo() const override {
  68     return &getInstrInfo()->getRegisterInfo();
  69   }
  70
  71   const MSP430TargetLowering *getTargetLowering() const override {
  72     return &TLInfo;
  73   }
  74   const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
  75     return &TSInfo;
  76   }
  77 };
  78 } // End llvm namespace
  79
  80 #endif  // LLVM_TARGET_MSP430_SUBTARGET_H