| 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/MC/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(Val: 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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| 40 | |
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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 | StringRef 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(CPU: CPUName, /*TuneCPU*/ 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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| 57 | |
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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, /*TuneCPU*/ CPU, FS), |
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| 61 | InstrInfo(initializeSubtargetDependencies(CPU, FS)), TLInfo(TM, *this), |
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| 62 | FrameLowering(*this) {} |
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| 63 | |
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