0a9d480fad
This patch adds support for LoongArch32, as introduced in la-toolchain-conventions v1.2. Co-authored-by: Sun Haiyong <sunhaiyong@zdbr.net> Link: https://github.com/loongson/la-toolchain-conventions/releases/tag/releases%2Fv1.2 Link: https://gcc.gnu.org/pipermail/gcc-patches/2025-December/703312.html
97 lines
2.8 KiB
C++
97 lines
2.8 KiB
C++
//===-- LoongArchTargetParser - Parser for LoongArch features --*- C++ -*-====//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements a target parser to recognise LoongArch hardware features
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// such as CPU/ARCH and extension names.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/TargetParser/LoongArchTargetParser.h"
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#include "llvm/ADT/SmallVector.h"
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using namespace llvm;
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using namespace llvm::LoongArch;
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const FeatureInfo AllFeatures[] = {
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#define LOONGARCH_FEATURE(NAME, KIND) {NAME, KIND},
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#include "llvm/TargetParser/LoongArchTargetParser.def"
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};
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const ArchInfo AllArchs[] = {
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#define LOONGARCH_ARCH(NAME, KIND, FEATURES) \
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{NAME, LoongArch::ArchKind::KIND, FEATURES},
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#include "llvm/TargetParser/LoongArchTargetParser.def"
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};
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bool LoongArch::isValidArchName(StringRef Arch) {
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for (const auto A : AllArchs)
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if (A.Name == Arch)
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return true;
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return false;
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}
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bool LoongArch::isValidFeatureName(StringRef Feature) {
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if (Feature.starts_with("+") || Feature.starts_with("-"))
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return false;
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for (const auto &F : AllFeatures) {
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StringRef CanonicalName =
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F.Name.starts_with("+") ? F.Name.drop_front() : F.Name;
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if (CanonicalName == Feature)
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return true;
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}
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return false;
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}
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bool LoongArch::getArchFeatures(StringRef Arch,
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std::vector<StringRef> &Features) {
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for (const auto A : AllArchs) {
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if (A.Name == Arch) {
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for (const auto F : AllFeatures)
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if ((A.Features & F.Kind) == F.Kind)
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Features.push_back(F.Name);
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return true;
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}
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}
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if (Arch == "la64v1.0" || Arch == "la64v1.1") {
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Features.push_back("+64bit");
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Features.push_back("+d");
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Features.push_back("+lsx");
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Features.push_back("+ual");
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if (Arch == "la64v1.1") {
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Features.push_back("+frecipe");
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Features.push_back("+lam-bh");
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Features.push_back("+lamcas");
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Features.push_back("+ld-seq-sa");
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Features.push_back("+div32");
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Features.push_back("+scq");
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}
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return true;
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}
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if (Arch == "la32v1.0" || Arch == "la32rv1.0") {
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Features.push_back("+32bit");
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if (Arch == "la32v1.0")
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Features.push_back("+32s");
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return true;
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}
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return false;
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}
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bool LoongArch::isValidCPUName(StringRef Name) { return isValidArchName(Name); }
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void LoongArch::fillValidCPUList(SmallVectorImpl<StringRef> &Values) {
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for (const auto A : AllArchs)
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Values.emplace_back(A.Name);
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}
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StringRef LoongArch::getDefaultArch(bool Is64Bit) {
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return Is64Bit ? "loongarch64" : "loongarch32";
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}
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