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//===-- LoongArchTargetParser - Parser for LoongArch features --*- C++ -*-====//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file implements a target parser to recognise LoongArch hardware features
// such as CPU/ARCH and extension names.
//
//===----------------------------------------------------------------------===//
#include "llvm/TargetParser/LoongArchTargetParser.h"
#include "llvm/ADT/SmallVector.h"
using namespace llvm;
using namespace llvm::LoongArch;
const FeatureInfo AllFeatures[] = {
#define LOONGARCH_FEATURE(NAME, KIND) {NAME, KIND},
#include "llvm/TargetParser/LoongArchTargetParser.def"
};
const ArchInfo AllArchs[] = {
#define LOONGARCH_ARCH(NAME, KIND, FEATURES) \
{NAME, LoongArch::ArchKind::KIND, FEATURES},
#include "llvm/TargetParser/LoongArchTargetParser.def"
};
bool LoongArch::isValidArchName(StringRef Arch) {
for (const auto A : AllArchs)
if (A.Name == Arch)
return true;
return false;
}
bool LoongArch::isValidFeatureName(StringRef Feature) {
if (Feature.starts_with("+") || Feature.starts_with("-"))
return false;
for (const auto &F : AllFeatures) {
StringRef CanonicalName =
F.Name.starts_with("+") ? F.Name.drop_front() : F.Name;
if (CanonicalName == Feature)
return true;
}
return false;
}
bool LoongArch::getArchFeatures(StringRef Arch,
std::vector<StringRef> &Features) {
for (const auto A : AllArchs) {
if (A.Name == Arch) {
for (const auto F : AllFeatures)
if ((A.Features & F.Kind) == F.Kind)
Features.push_back(F.Name);
return true;
}
}
if (Arch == "la64v1.0" || Arch == "la64v1.1") {
Features.push_back("+64bit");
Features.push_back("+d");
Features.push_back("+lsx");
Features.push_back("+ual");
if (Arch == "la64v1.1") {
Features.push_back("+frecipe");
Features.push_back("+lam-bh");
Features.push_back("+lamcas");
Features.push_back("+ld-seq-sa");
Features.push_back("+div32");
Features.push_back("+scq");
}
return true;
}
return false;
}
bool LoongArch::isValidCPUName(StringRef Name) { return isValidArchName(Name); }
void LoongArch::fillValidCPUList(SmallVectorImpl<StringRef> &Values) {
for (const auto A : AllArchs)
Values.emplace_back(A.Name);
}
StringRef LoongArch::getDefaultArch(bool Is64Bit) {
// TODO: use a real 32-bit arch name.
return Is64Bit ? "loongarch64" : "";
}
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