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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file implements a target parser to recognise LoongArch hardware features 10 // such as CPU/ARCH and extension names. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "llvm/TargetParser/LoongArchTargetParser.h" 15 #include "llvm/ADT/SmallVector.h" 16 17 using namespace llvm; 18 using namespace llvm::LoongArch; 19 20 const FeatureInfo AllFeatures[] = { 21 #define LOONGARCH_FEATURE(NAME, KIND) {NAME, KIND}, 22 #include "llvm/TargetParser/LoongArchTargetParser.def" 23 }; 24 25 const ArchInfo AllArchs[] = { 26 #define LOONGARCH_ARCH(NAME, KIND, FEATURES) \ 27 {NAME, LoongArch::ArchKind::KIND, FEATURES}, 28 #include "llvm/TargetParser/LoongArchTargetParser.def" 29 }; 30 31 bool LoongArch::isValidArchName(StringRef Arch) { 32 for (const auto A : AllArchs) 33 if (A.Name == Arch) 34 return true; 35 return false; 36 } 37 38 bool 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 50 bool 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 80 bool LoongArch::isValidCPUName(StringRef Name) { return isValidArchName(Name); } 81 82 void LoongArch::fillValidCPUList(SmallVectorImpl<StringRef> &Values) { 83 for (const auto A : AllArchs) 84 Values.emplace_back(A.Name); 85 } 86 87 StringRef LoongArch::getDefaultArch(bool Is64Bit) { 88 // TODO: use a real 32-bit arch name. 89 return Is64Bit ? "loongarch64" : ""; 90 } 91