1 //===- LangOptions.cpp - C Language Family Language Options ---------------===// 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 defines the LangOptions class. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "clang/Basic/LangOptions.h" 14 #include "llvm/ADT/SmallString.h" 15 #include "llvm/Support/Path.h" 16 17 using namespace clang; 18 19 LangOptions::LangOptions() : LangStd(LangStandard::lang_unspecified) { 20 #define LANGOPT(Name, Bits, Default, Description) Name = Default; 21 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) set##Name(Default); 22 #include "clang/Basic/LangOptions.def" 23 } 24 25 void LangOptions::resetNonModularOptions() { 26 #define LANGOPT(Name, Bits, Default, Description) 27 #define BENIGN_LANGOPT(Name, Bits, Default, Description) Name = Default; 28 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) \ 29 Name = static_cast<unsigned>(Default); 30 #include "clang/Basic/LangOptions.def" 31 32 // These options do not affect AST generation. 33 NoSanitizeFiles.clear(); 34 XRayAlwaysInstrumentFiles.clear(); 35 XRayNeverInstrumentFiles.clear(); 36 37 CurrentModule.clear(); 38 IsHeaderFile = false; 39 } 40 41 bool LangOptions::isNoBuiltinFunc(StringRef FuncName) const { 42 for (unsigned i = 0, e = NoBuiltinFuncs.size(); i != e; ++i) 43 if (FuncName.equals(NoBuiltinFuncs[i])) 44 return true; 45 return false; 46 } 47 48 VersionTuple LangOptions::getOpenCLVersionTuple() const { 49 const int Ver = OpenCLCPlusPlus ? OpenCLCPlusPlusVersion : OpenCLVersion; 50 if (OpenCLCPlusPlus && Ver != 100) 51 return VersionTuple(Ver / 100); 52 return VersionTuple(Ver / 100, (Ver % 100) / 10); 53 } 54 55 unsigned LangOptions::getOpenCLCompatibleVersion() const { 56 if (!OpenCLCPlusPlus) 57 return OpenCLVersion; 58 if (OpenCLCPlusPlusVersion == 100) 59 return 200; 60 if (OpenCLCPlusPlusVersion == 202100) 61 return 300; 62 llvm_unreachable("Unknown OpenCL version"); 63 } 64 65 void LangOptions::remapPathPrefix(SmallString<256> &Path) const { 66 for (const auto &Entry : MacroPrefixMap) 67 if (llvm::sys::path::replace_path_prefix(Path, Entry.first, Entry.second)) 68 break; 69 } 70 71 std::string LangOptions::getOpenCLVersionString() const { 72 std::string Result; 73 { 74 llvm::raw_string_ostream Out(Result); 75 Out << (OpenCLCPlusPlus ? "C++ for OpenCL" : "OpenCL C") << " version " 76 << getOpenCLVersionTuple().getAsString(); 77 } 78 return Result; 79 } 80 81 FPOptions FPOptions::defaultWithoutTrailingStorage(const LangOptions &LO) { 82 FPOptions result(LO); 83 return result; 84 } 85 86 LLVM_DUMP_METHOD void FPOptions::dump() { 87 #define OPTION(NAME, TYPE, WIDTH, PREVIOUS) \ 88 llvm::errs() << "\n " #NAME " " << get##NAME(); 89 #include "clang/Basic/FPOptions.def" 90 llvm::errs() << "\n"; 91 } 92 93 LLVM_DUMP_METHOD void FPOptionsOverride::dump() { 94 #define OPTION(NAME, TYPE, WIDTH, PREVIOUS) \ 95 if (has##NAME##Override()) \ 96 llvm::errs() << "\n " #NAME " Override is " << get##NAME##Override(); 97 #include "clang/Basic/FPOptions.def" 98 llvm::errs() << "\n"; 99 } 100