1 //===--- LangStandards.cpp - Language Standard Definitions ----------------===// 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 #include "clang/Basic/LangStandard.h" 10 #include "clang/Config/config.h" 11 #include "llvm/ADT/StringSwitch.h" 12 #include "llvm/Support/ErrorHandling.h" 13 #include "llvm/TargetParser/Triple.h" 14 using namespace clang; 15 16 StringRef clang::languageToString(Language L) { 17 switch (L) { 18 case Language::Unknown: 19 return "Unknown"; 20 case Language::Asm: 21 return "Asm"; 22 case Language::LLVM_IR: 23 return "LLVM IR"; 24 case Language::C: 25 return "C"; 26 case Language::CXX: 27 return "C++"; 28 case Language::ObjC: 29 return "Objective-C"; 30 case Language::ObjCXX: 31 return "Objective-C++"; 32 case Language::OpenCL: 33 return "OpenCL"; 34 case Language::OpenCLCXX: 35 return "OpenCLC++"; 36 case Language::CUDA: 37 return "CUDA"; 38 case Language::RenderScript: 39 return "RenderScript"; 40 case Language::HIP: 41 return "HIP"; 42 case Language::HLSL: 43 return "HLSL"; 44 } 45 46 llvm_unreachable("unhandled language kind"); 47 } 48 49 #define LANGSTANDARD(id, name, lang, desc, features) \ 50 static const LangStandard Lang_##id = {name, desc, features, Language::lang}; 51 #include "clang/Basic/LangStandards.def" 52 53 const LangStandard &LangStandard::getLangStandardForKind(Kind K) { 54 switch (K) { 55 case lang_unspecified: 56 llvm::report_fatal_error("getLangStandardForKind() on unspecified kind"); 57 #define LANGSTANDARD(id, name, lang, desc, features) \ 58 case lang_##id: return Lang_##id; 59 #include "clang/Basic/LangStandards.def" 60 } 61 llvm_unreachable("Invalid language kind!"); 62 } 63 64 LangStandard::Kind LangStandard::getLangKind(StringRef Name) { 65 return llvm::StringSwitch<Kind>(Name) 66 #define LANGSTANDARD(id, name, lang, desc, features) .Case(name, lang_##id) 67 #define LANGSTANDARD_ALIAS(id, alias) .Case(alias, lang_##id) 68 #include "clang/Basic/LangStandards.def" 69 .Default(lang_unspecified); 70 } 71 72 const LangStandard *LangStandard::getLangStandardForName(StringRef Name) { 73 Kind K = getLangKind(Name); 74 if (K == lang_unspecified) 75 return nullptr; 76 77 return &getLangStandardForKind(K); 78 } 79 80 LangStandard::Kind clang::getDefaultLanguageStandard(clang::Language Lang, 81 const llvm::Triple &T) { 82 switch (Lang) { 83 case Language::Unknown: 84 case Language::LLVM_IR: 85 llvm_unreachable("Invalid input kind!"); 86 case Language::OpenCL: 87 return LangStandard::lang_opencl12; 88 case Language::OpenCLCXX: 89 return LangStandard::lang_openclcpp10; 90 case Language::Asm: 91 case Language::C: 92 // The PS4 uses C99 as the default C standard. 93 if (T.isPS4()) 94 return LangStandard::lang_gnu99; 95 return LangStandard::lang_gnu17; 96 case Language::ObjC: 97 return LangStandard::lang_gnu11; 98 case Language::CXX: 99 case Language::ObjCXX: 100 case Language::CUDA: 101 case Language::HIP: 102 return LangStandard::lang_gnucxx17; 103 case Language::RenderScript: 104 return LangStandard::lang_c99; 105 case Language::HLSL: 106 return LangStandard::lang_hlsl2021; 107 } 108 llvm_unreachable("unhandled Language kind!"); 109 } 110