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 17 using namespace llvm; 18 19 #define DEBUG_TYPE "msp430-subtarget" 20 21 static cl::opt<MSP430Subtarget::HWMultEnum> 22 HWMultModeOption("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 39 void MSP430Subtarget::anchor() { } 40 41 MSP430Subtarget & 42 MSP430Subtarget::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 58 MSP430Subtarget::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