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| //===-- MSP430Subtarget.cpp - MSP430 Subtarget Information ----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements the MSP430 specific subclass of TargetSubtargetInfo.
//
//===----------------------------------------------------------------------===//
#include "MSP430Subtarget.h"
#include "MSP430.h"
#include "llvm/Support/TargetRegistry.h"
using namespace llvm;
#define DEBUG_TYPE "msp430-subtarget"
static cl::opt<MSP430Subtarget::HWMultEnum>
HWMultModeOption("mhwmult", cl::Hidden,
cl::desc("Hardware multiplier use mode for MSP430"),
cl::init(MSP430Subtarget::NoHWMult),
cl::values(
clEnumValN(MSP430Subtarget::NoHWMult, "none",
"Do not use hardware multiplier"),
clEnumValN(MSP430Subtarget::HWMult16, "16bit",
"Use 16-bit hardware multiplier"),
clEnumValN(MSP430Subtarget::HWMult32, "32bit",
"Use 32-bit hardware multiplier"),
clEnumValN(MSP430Subtarget::HWMultF5, "f5series",
"Use F5 series hardware multiplier")));
#define GET_SUBTARGETINFO_TARGET_DESC
#define GET_SUBTARGETINFO_CTOR
#include "MSP430GenSubtargetInfo.inc"
void MSP430Subtarget::anchor() { }
MSP430Subtarget &
MSP430Subtarget::initializeSubtargetDependencies(StringRef CPU, StringRef FS) {
ExtendedInsts = false;
HWMultMode = NoHWMult;
std::string CPUName = CPU;
if (CPUName.empty())
CPUName = "msp430";
ParseSubtargetFeatures(CPUName, FS);
if (HWMultModeOption != NoHWMult)
HWMultMode = HWMultModeOption;
return *this;
}
MSP430Subtarget::MSP430Subtarget(const Triple &TT, const std::string &CPU,
const std::string &FS, const TargetMachine &TM)
: MSP430GenSubtargetInfo(TT, CPU, FS), FrameLowering(),
InstrInfo(initializeSubtargetDependencies(CPU, FS)), TLInfo(TM, *this) {}
|