forked from OSchip/llvm-project
62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
//===-- Nios2Subtarget.cpp - Nios2 Subtarget Information ------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the Nios2 specific subclass of TargetSubtargetInfo.
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//
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//===----------------------------------------------------------------------===//
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#include "Nios2Subtarget.h"
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#include "Nios2.h"
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#include "Nios2RegisterInfo.h"
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#include "Nios2TargetMachine.h"
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using namespace llvm;
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#define DEBUG_TYPE "nios2-subtarget"
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#define GET_SUBTARGETINFO_TARGET_DESC
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#define GET_SUBTARGETINFO_CTOR
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#include "Nios2GenSubtargetInfo.inc"
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void Nios2Subtarget::anchor() {}
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Nios2Subtarget::Nios2Subtarget(const Triple &TT, const std::string &CPU,
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const std::string &FS,
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const Nios2TargetMachine &_TM)
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:
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// Nios2GenSubtargetInfo will display features by llc -march=nios2
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// -mcpu=help
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Nios2GenSubtargetInfo(TT, CPU, FS), TM(_TM), TargetTriple(TT),
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InstrInfo(Nios2InstrInfo::create(
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initializeSubtargetDependencies(CPU, FS, TM))) {}
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Nios2Subtarget &
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Nios2Subtarget::initializeSubtargetDependencies(StringRef CPU, StringRef FS,
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const TargetMachine &TM) {
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if (TargetTriple.getArch() == Triple::nios2) {
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if (CPU != "nios2r2") {
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CPU = "nios2r1";
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Nios2ArchVersion = Nios2r1;
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} else {
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Nios2ArchVersion = Nios2r2;
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}
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} else {
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errs() << "!!!Error, TargetTriple.getArch() = " << TargetTriple.getArch()
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<< "CPU = " << CPU << "\n";
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exit(0);
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}
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// Parse features string.
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ParseSubtargetFeatures(CPU, FS);
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return *this;
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}
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