1 //===-- MSP430MCTargetDesc.cpp - MSP430 Target Descriptions ---------------===// 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 provides MSP430 specific target descriptions. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "MSP430MCTargetDesc.h" 14 #include "MSP430InstPrinter.h" 15 #include "MSP430MCAsmInfo.h" 16 #include "TargetInfo/MSP430TargetInfo.h" 17 #include "llvm/MC/MCDwarf.h" 18 #include "llvm/MC/MCInstrInfo.h" 19 #include "llvm/MC/MCRegisterInfo.h" 20 #include "llvm/MC/MCSubtargetInfo.h" 21 #include "llvm/MC/TargetRegistry.h" 22 23 using namespace llvm; 24 25 #define GET_INSTRINFO_MC_DESC 26 #define ENABLE_INSTR_PREDICATE_VERIFIER 27 #include "MSP430GenInstrInfo.inc" 28 29 #define GET_SUBTARGETINFO_MC_DESC 30 #include "MSP430GenSubtargetInfo.inc" 31 32 #define GET_REGINFO_MC_DESC 33 #include "MSP430GenRegisterInfo.inc" 34 35 static MCInstrInfo *createMSP430MCInstrInfo() { 36 MCInstrInfo *X = new MCInstrInfo(); 37 InitMSP430MCInstrInfo(X); 38 return X; 39 } 40 41 static MCRegisterInfo *createMSP430MCRegisterInfo(const Triple &TT) { 42 MCRegisterInfo *X = new MCRegisterInfo(); 43 InitMSP430MCRegisterInfo(X, MSP430::PC); 44 return X; 45 } 46 47 static MCAsmInfo *createMSP430MCAsmInfo(const MCRegisterInfo &MRI, 48 const Triple &TT, 49 const MCTargetOptions &Options) { 50 MCAsmInfo *MAI = new MSP430MCAsmInfo(TT); 51 52 // Initialize initial frame state. 53 int stackGrowth = -2; 54 55 // Initial state of the frame pointer is sp+ptr_size. 56 MCCFIInstruction Inst = MCCFIInstruction::cfiDefCfa( 57 nullptr, MRI.getDwarfRegNum(MSP430::SP, true), -stackGrowth); 58 MAI->addInitialFrameState(Inst); 59 60 // Add return address to move list 61 MCCFIInstruction Inst2 = MCCFIInstruction::createOffset( 62 nullptr, MRI.getDwarfRegNum(MSP430::PC, true), stackGrowth); 63 MAI->addInitialFrameState(Inst2); 64 65 return MAI; 66 } 67 68 static MCSubtargetInfo * 69 createMSP430MCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) { 70 return createMSP430MCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, FS); 71 } 72 73 static MCInstPrinter *createMSP430MCInstPrinter(const Triple &T, 74 unsigned SyntaxVariant, 75 const MCAsmInfo &MAI, 76 const MCInstrInfo &MII, 77 const MCRegisterInfo &MRI) { 78 if (SyntaxVariant == 0) 79 return new MSP430InstPrinter(MAI, MII, MRI); 80 return nullptr; 81 } 82 83 extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeMSP430TargetMC() { 84 Target &T = getTheMSP430Target(); 85 86 TargetRegistry::RegisterMCAsmInfo(T, createMSP430MCAsmInfo); 87 TargetRegistry::RegisterMCInstrInfo(T, createMSP430MCInstrInfo); 88 TargetRegistry::RegisterMCRegInfo(T, createMSP430MCRegisterInfo); 89 TargetRegistry::RegisterMCSubtargetInfo(T, createMSP430MCSubtargetInfo); 90 TargetRegistry::RegisterMCInstPrinter(T, createMSP430MCInstPrinter); 91 TargetRegistry::RegisterMCCodeEmitter(T, createMSP430MCCodeEmitter); 92 TargetRegistry::RegisterMCAsmBackend(T, createMSP430MCAsmBackend); 93 TargetRegistry::RegisterObjectTargetStreamer( 94 T, createMSP430ObjectTargetStreamer); 95 } 96