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 81