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annotate lib/Target/MSP430/MSP430Subtarget.cpp @ 147:c2174574ed3a

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LLVM 10
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 14 Aug 2019 16:55:33 +0900
parents 803732b1fca8
children
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1 //===-- MSP430Subtarget.cpp - MSP430 Subtarget Information ----------------===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8 //
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9 // This file implements the MSP430 specific subclass of TargetSubtargetInfo.
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10 //
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11 //===----------------------------------------------------------------------===//
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12
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13 #include "MSP430Subtarget.h"
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14 #include "MSP430.h"
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15 #include "llvm/Support/TargetRegistry.h"
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16
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17 using namespace llvm;
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18
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19 #define DEBUG_TYPE "msp430-subtarget"
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20
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21 static cl::opt<MSP430Subtarget::HWMultEnum>
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22 HWMultModeOption("mhwmult", cl::Hidden,
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23 cl::desc("Hardware multiplier use mode for MSP430"),
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24 cl::init(MSP430Subtarget::NoHWMult),
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25 cl::values(
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26 clEnumValN(MSP430Subtarget::NoHWMult, "none",
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27 "Do not use hardware multiplier"),
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28 clEnumValN(MSP430Subtarget::HWMult16, "16bit",
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29 "Use 16-bit hardware multiplier"),
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30 clEnumValN(MSP430Subtarget::HWMult32, "32bit",
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31 "Use 32-bit hardware multiplier"),
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32 clEnumValN(MSP430Subtarget::HWMultF5, "f5series",
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33 "Use F5 series hardware multiplier")));
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34
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35 #define GET_SUBTARGETINFO_TARGET_DESC
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36 #define GET_SUBTARGETINFO_CTOR
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37 #include "MSP430GenSubtargetInfo.inc"
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38
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39 void MSP430Subtarget::anchor() { }
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41 MSP430Subtarget &
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42 MSP430Subtarget::initializeSubtargetDependencies(StringRef CPU, StringRef FS) {
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43 ExtendedInsts = false;
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44 HWMultMode = NoHWMult;
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45
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46 std::string CPUName = CPU;
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47 if (CPUName.empty())
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48 CPUName = "msp430";
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49
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50 ParseSubtargetFeatures(CPUName, FS);
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51
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52 if (HWMultModeOption != NoHWMult)
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53 HWMultMode = HWMultModeOption;
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54
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55 return *this;
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56 }
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58 MSP430Subtarget::MSP430Subtarget(const Triple &TT, const std::string &CPU,
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59 const std::string &FS, const TargetMachine &TM)
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60 : MSP430GenSubtargetInfo(TT, CPU, FS), FrameLowering(),
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61 InstrInfo(initializeSubtargetDependencies(CPU, FS)), TLInfo(TM, *this) {}