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