C++ VersionTuple::getMinor方法代码示例

std::string
MSVCToolChain::ComputeEffectiveClangTriple(const ArgList &Args,
        types::ID InputType) const {
    std::string TripleStr =
        ToolChain::ComputeEffectiveClangTriple(Args, InputType);
    llvm::Triple Triple(TripleStr);
    VersionTuple MSVT =
        tools::visualstudio::getMSVCVersion(/*D=*/nullptr, *this, Triple, Args,
                /*IsWindowsMSVC=*/true);
    if (MSVT.empty())
        return TripleStr;

    MSVT = VersionTuple(MSVT.getMajor(), MSVT.getMinor().getValueOr(0),
                        MSVT.getSubminor().getValueOr(0));

    if (Triple.getEnvironment() == llvm::Triple::MSVC) {
        StringRef ObjFmt = Triple.getEnvironmentName().split('-').second;
        if (ObjFmt.empty())
            Triple.setEnvironmentName((Twine("msvc") + MSVT.getAsString()).str());
        else
            Triple.setEnvironmentName(
                (Twine("msvc") + MSVT.getAsString() + Twine('-') + ObjFmt).str());
    }
    return Triple.getTriple();
}

static void InitializePredefinedMacros(const TargetInfo &TI,
                                       const LangOptions &LangOpts,
                                       const FrontendOptions &FEOpts,
                                       MacroBuilder &Builder) {
  // Compiler version introspection macros.
  Builder.defineMacro("__llvm__");  // LLVM Backend
  Builder.defineMacro("__clang__"); // Clang Frontend
#define TOSTR2(X) #X
#define TOSTR(X) TOSTR2(X)
  Builder.defineMacro("__clang_major__", TOSTR(CLANG_VERSION_MAJOR));
  Builder.defineMacro("__clang_minor__", TOSTR(CLANG_VERSION_MINOR));
#ifdef CLANG_VERSION_PATCHLEVEL
  Builder.defineMacro("__clang_patchlevel__", TOSTR(CLANG_VERSION_PATCHLEVEL));
#else
  Builder.defineMacro("__clang_patchlevel__", "0");
#endif
  Builder.defineMacro("__clang_version__", 
                      "\"" CLANG_VERSION_STRING " "
                      + getClangFullRepositoryVersion() + "\"");
#undef TOSTR
#undef TOSTR2
  if (!LangOpts.MSVCCompat) {
    // Currently claim to be compatible with GCC 4.2.1-5621, but only if we're
    // not compiling for MSVC compatibility
    Builder.defineMacro("__GNUC_MINOR__", "2");
    Builder.defineMacro("__GNUC_PATCHLEVEL__", "1");
    Builder.defineMacro("__GNUC__", "4");
    Builder.defineMacro("__GXX_ABI_VERSION", "1002");
  }

  // Define macros for the C11 / C++11 memory orderings
  Builder.defineMacro("__ATOMIC_RELAXED", "0");
  Builder.defineMacro("__ATOMIC_CONSUME", "1");
  Builder.defineMacro("__ATOMIC_ACQUIRE", "2");
  Builder.defineMacro("__ATOMIC_RELEASE", "3");
  Builder.defineMacro("__ATOMIC_ACQ_REL", "4");
  Builder.defineMacro("__ATOMIC_SEQ_CST", "5");

  // Support for #pragma redefine_extname (Sun compatibility)
  Builder.defineMacro("__PRAGMA_REDEFINE_EXTNAME", "1");

  // As sad as it is, enough software depends on the __VERSION__ for version
  // checks that it is necessary to report 4.2.1 (the base GCC version we claim
  // compatibility with) first.
  Builder.defineMacro("__VERSION__", "\"4.2.1 Compatible " + 
                      Twine(getClangFullCPPVersion()) + "\"");

  // Initialize language-specific preprocessor defines.

  // Standard conforming mode?
  if (!LangOpts.GNUMode && !LangOpts.MSVCCompat)
    Builder.defineMacro("__STRICT_ANSI__");

  if (!LangOpts.MSVCCompat && LangOpts.CPlusPlus11)
    Builder.defineMacro("__GXX_EXPERIMENTAL_CXX0X__");

  if (LangOpts.ObjC1) {
    if (LangOpts.ObjCRuntime.isNonFragile()) {
      Builder.defineMacro("__OBJC2__");
      
      if (LangOpts.ObjCExceptions)
        Builder.defineMacro("OBJC_ZEROCOST_EXCEPTIONS");
    }

    if (LangOpts.getGC() != LangOptions::NonGC)
      Builder.defineMacro("__OBJC_GC__");

    if (LangOpts.ObjCRuntime.isNeXTFamily())
      Builder.defineMacro("__NEXT_RUNTIME__");

    if (LangOpts.ObjCRuntime.getKind() == ObjCRuntime::ObjFW) {
      VersionTuple tuple = LangOpts.ObjCRuntime.getVersion();

      unsigned minor = 0;
      if (tuple.getMinor().hasValue())
        minor = tuple.getMinor().getValue();

      unsigned subminor = 0;
      if (tuple.getSubminor().hasValue())
        subminor = tuple.getSubminor().getValue();

      Builder.defineMacro("__OBJFW_RUNTIME_ABI__",
                          Twine(tuple.getMajor() * 10000 + minor * 100 +
                                subminor));
    }

    Builder.defineMacro("IBOutlet", "__attribute__((iboutlet))");
    Builder.defineMacro("IBOutletCollection(ClassName)",
                        "__attribute__((iboutletcollection(ClassName)))");
    Builder.defineMacro("IBAction", "void)__attribute__((ibaction)");
    Builder.defineMacro("IBInspectable", "");
    Builder.defineMacro("IB_DESIGNABLE", "");
  }

  if (LangOpts.CPlusPlus)
    InitializeCPlusPlusFeatureTestMacros(LangOpts, Builder);

  // darwin_constant_cfstrings controls this. This is also dependent
  // on other things like the runtime I believe.  This is set even for C code.
  if (!LangOpts.NoConstantCFStrings)
//.........这里部分代码省略.........