91 lines · cpp
1//===-- LoongArchTargetParser - Parser for LoongArch features --*- C++ -*-====//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// This file implements a target parser to recognise LoongArch hardware features10// such as CPU/ARCH and extension names.11//12//===----------------------------------------------------------------------===//13 14#include "llvm/TargetParser/LoongArchTargetParser.h"15#include "llvm/ADT/SmallVector.h"16 17using namespace llvm;18using namespace llvm::LoongArch;19 20const FeatureInfo AllFeatures[] = {21#define LOONGARCH_FEATURE(NAME, KIND) {NAME, KIND},22#include "llvm/TargetParser/LoongArchTargetParser.def"23};24 25const ArchInfo AllArchs[] = {26#define LOONGARCH_ARCH(NAME, KIND, FEATURES) \27 {NAME, LoongArch::ArchKind::KIND, FEATURES},28#include "llvm/TargetParser/LoongArchTargetParser.def"29};30 31bool LoongArch::isValidArchName(StringRef Arch) {32 for (const auto A : AllArchs)33 if (A.Name == Arch)34 return true;35 return false;36}37 38bool LoongArch::isValidFeatureName(StringRef Feature) {39 if (Feature.starts_with("+") || Feature.starts_with("-"))40 return false;41 for (const auto &F : AllFeatures) {42 StringRef CanonicalName =43 F.Name.starts_with("+") ? F.Name.drop_front() : F.Name;44 if (CanonicalName == Feature)45 return true;46 }47 return false;48}49 50bool LoongArch::getArchFeatures(StringRef Arch,51 std::vector<StringRef> &Features) {52 for (const auto A : AllArchs) {53 if (A.Name == Arch) {54 for (const auto F : AllFeatures)55 if ((A.Features & F.Kind) == F.Kind)56 Features.push_back(F.Name);57 return true;58 }59 }60 61 if (Arch == "la64v1.0" || Arch == "la64v1.1") {62 Features.push_back("+64bit");63 Features.push_back("+d");64 Features.push_back("+lsx");65 Features.push_back("+ual");66 if (Arch == "la64v1.1") {67 Features.push_back("+frecipe");68 Features.push_back("+lam-bh");69 Features.push_back("+lamcas");70 Features.push_back("+ld-seq-sa");71 Features.push_back("+div32");72 Features.push_back("+scq");73 }74 return true;75 }76 77 return false;78}79 80bool LoongArch::isValidCPUName(StringRef Name) { return isValidArchName(Name); }81 82void LoongArch::fillValidCPUList(SmallVectorImpl<StringRef> &Values) {83 for (const auto A : AllArchs)84 Values.emplace_back(A.Name);85}86 87StringRef LoongArch::getDefaultArch(bool Is64Bit) {88 // TODO: use a real 32-bit arch name.89 return Is64Bit ? "loongarch64" : "";90}91