1//===-- MSP430Subtarget.cpp - MSP430 Subtarget Information ----------------===// 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 implements the MSP430 specific subclass of TargetSubtargetInfo. 10// 11//===----------------------------------------------------------------------===// 12 13#include "MSP430Subtarget.h" 14#include "MSP430.h" 15#include "llvm/Support/TargetRegistry.h" 16 17using namespace llvm; 18 19#define DEBUG_TYPE "msp430-subtarget" 20 21static cl::opt<MSP430Subtarget::HWMultEnum> 22HWMultModeOption("mhwmult", cl::Hidden, 23 cl::desc("Hardware multiplier use mode for MSP430"), 24 cl::init(MSP430Subtarget::NoHWMult), 25 cl::values( 26 clEnumValN(MSP430Subtarget::NoHWMult, "none", 27 "Do not use hardware multiplier"), 28 clEnumValN(MSP430Subtarget::HWMult16, "16bit", 29 "Use 16-bit hardware multiplier"), 30 clEnumValN(MSP430Subtarget::HWMult32, "32bit", 31 "Use 32-bit hardware multiplier"), 32 clEnumValN(MSP430Subtarget::HWMultF5, "f5series", 33 "Use F5 series hardware multiplier"))); 34 35#define GET_SUBTARGETINFO_TARGET_DESC 36#define GET_SUBTARGETINFO_CTOR 37#include "MSP430GenSubtargetInfo.inc" 38 39void MSP430Subtarget::anchor() { } 40 41MSP430Subtarget & 42MSP430Subtarget::initializeSubtargetDependencies(StringRef CPU, StringRef FS) { 43 ExtendedInsts = false; 44 HWMultMode = NoHWMult; 45 46 StringRef CPUName = CPU; 47 if (CPUName.empty()) 48 CPUName = "msp430"; 49 50 ParseSubtargetFeatures(CPUName, /*TuneCPU*/ CPUName, FS); 51 52 if (HWMultModeOption != NoHWMult) 53 HWMultMode = HWMultModeOption; 54 55 return *this; 56} 57 58MSP430Subtarget::MSP430Subtarget(const Triple &TT, const std::string &CPU, 59 const std::string &FS, const TargetMachine &TM) 60 : MSP430GenSubtargetInfo(TT, CPU, /*TuneCPU*/ CPU, FS), FrameLowering(), 61 InstrInfo(initializeSubtargetDependencies(CPU, FS)), TLInfo(TM, *this) {} 62