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