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/TargetSubtargetInfo.h" 21 #include "llvm/IR/DataLayout.h" 22 #include <string> 23 24 #define GET_SUBTARGETINFO_HEADER 25 #include "MSP430GenSubtargetInfo.inc" 26 27 namespace llvm { 28 class StringRef; 29 30 class MSP430Subtarget : public MSP430GenSubtargetInfo { 31 public: 32 enum HWMultEnum { 33 NoHWMult, HWMult16, HWMult32, HWMultF5 34 }; 35 36 private: 37 virtual void anchor(); 38 bool ExtendedInsts = false; 39 HWMultEnum HWMultMode = NoHWMult; 40 MSP430InstrInfo InstrInfo; 41 MSP430TargetLowering TLInfo; 42 std::unique_ptr<const SelectionDAGTargetInfo> TSInfo; 43 MSP430FrameLowering FrameLowering; 44 45 public: 46 /// This constructor initializes the data members to match that 47 /// of the specified triple. 48 /// 49 MSP430Subtarget(const Triple &TT, const std::string &CPU, 50 const std::string &FS, const TargetMachine &TM); 51 52 ~MSP430Subtarget() override; 53 54 MSP430Subtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS); 55 56 /// ParseSubtargetFeatures - Parses features string setting specified 57 /// subtarget options. Definition of function is auto generated by tblgen. 58 void ParseSubtargetFeatures(StringRef CPU, StringRef TuneCPU, StringRef FS); 59 hasHWMult16()60 bool hasHWMult16() const { return HWMultMode == HWMult16; } hasHWMult32()61 bool hasHWMult32() const { return HWMultMode == HWMult32; } hasHWMultF5()62 bool hasHWMultF5() const { return HWMultMode == HWMultF5; } 63 getFrameLowering()64 const TargetFrameLowering *getFrameLowering() const override { 65 return &FrameLowering; 66 } getInstrInfo()67 const MSP430InstrInfo *getInstrInfo() const override { return &InstrInfo; } getRegisterInfo()68 const MSP430RegisterInfo *getRegisterInfo() const override { 69 return &getInstrInfo()->getRegisterInfo(); 70 } 71 getTargetLowering()72 const MSP430TargetLowering *getTargetLowering() const override { 73 return &TLInfo; 74 } 75 76 const SelectionDAGTargetInfo *getSelectionDAGInfo() const override; 77 }; 78 } // End llvm namespace 79 80 #endif // LLVM_TARGET_MSP430_SUBTARGET_H 81