diff options
Diffstat (limited to 'lib/Frontend/CompilerInvocation.cpp')
| -rw-r--r-- | lib/Frontend/CompilerInvocation.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp index cb227b7bf7..932481f87f 100644 --- a/lib/Frontend/CompilerInvocation.cpp +++ b/lib/Frontend/CompilerInvocation.cpp @@ -473,6 +473,10 @@ static void LangOptsToArgs(const LangOptions &Opts, // BCPLComment, C99, CPlusPlus0x, Digraphs, GNUInline, ImplicitInt, GNUMode if (Opts.DollarIdents) Res.push_back("-fdollars-in-identifiers"); + if (Opts.GNUMode && !Opts.GNUKeywords) + Res.push_back("-fno-gnu-keywords"); + if (!Opts.GNUMode && Opts.GNUKeywords) + Res.push_back("-fgnu-keywords"); if (Opts.Microsoft) Res.push_back("-fms-extensions"); if (Opts.ObjCNonFragileABI) @@ -1151,6 +1155,14 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, // OpenCL and C++ both have bool, true, false keywords. Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; + // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension + // keywords. This behavior is provided by GCC's poorly named '-fasm' flag, + // while a subset (the non-C++ GNU keywords) is provided by GCC's + // '-fgnu-keywords'. Clang conflates the two for simplicity under the single + // name, as it doesn't seem a useful distinction. + Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords, + Opts.GNUMode); + if (Opts.CPlusPlus) Opts.CXXOperatorNames = !Args.hasArg(OPT_fno_operator_names); |