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      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 
     15 using namespace clang;
     16 
     17 LangOptions::LangOptions() : LangStd(LangStandard::lang_unspecified) {
     18 #define LANGOPT(Name, Bits, Default, Description) Name = Default;
     19 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) set##Name(Default);
     20 #include "clang/Basic/LangOptions.def"
     21 }
     22 
     23 void LangOptions::resetNonModularOptions() {
     24 #define LANGOPT(Name, Bits, Default, Description)
     25 #define BENIGN_LANGOPT(Name, Bits, Default, Description) Name = Default;
     26 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
     27   Name = static_cast<unsigned>(Default);
     28 #include "clang/Basic/LangOptions.def"
     29 
     30   // These options do not affect AST generation.
     31   NoSanitizeFiles.clear();
     32   XRayAlwaysInstrumentFiles.clear();
     33   XRayNeverInstrumentFiles.clear();
     34 
     35   CurrentModule.clear();
     36   IsHeaderFile = false;
     37 }
     38 
     39 bool LangOptions::isNoBuiltinFunc(StringRef FuncName) const {
     40   for (unsigned i = 0, e = NoBuiltinFuncs.size(); i != e; ++i)
     41     if (FuncName.equals(NoBuiltinFuncs[i]))
     42       return true;
     43   return false;
     44 }
     45 
     46 VersionTuple LangOptions::getOpenCLVersionTuple() const {
     47   const int Ver = OpenCLCPlusPlus ? OpenCLCPlusPlusVersion : OpenCLVersion;
     48   return VersionTuple(Ver / 100, (Ver % 100) / 10);
     49 }
     50 
     51 FPOptions FPOptions::defaultWithoutTrailingStorage(const LangOptions &LO) {
     52   FPOptions result(LO);
     53   return result;
     54 }
     55 
     56 LLVM_DUMP_METHOD void FPOptions::dump() {
     57 #define OPTION(NAME, TYPE, WIDTH, PREVIOUS)                                    \
     58   llvm::errs() << "\n " #NAME " " << get##NAME();
     59 #include "clang/Basic/FPOptions.def"
     60   llvm::errs() << "\n";
     61 }
     62 
     63 LLVM_DUMP_METHOD void FPOptionsOverride::dump() {
     64 #define OPTION(NAME, TYPE, WIDTH, PREVIOUS)                                    \
     65   if (has##NAME##Override())                                                   \
     66     llvm::errs() << "\n " #NAME " Override is " << get##NAME##Override();
     67 #include "clang/Basic/FPOptions.def"
     68   llvm::errs() << "\n";
     69 }
     70