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| author | Nico Weber <nicolasweber@gmx.de> | 2014-12-23 22:32:37 +0000 |
|---|---|---|
| committer | Nico Weber <nicolasweber@gmx.de> | 2014-12-23 22:32:37 +0000 |
| commit | 007215044b48de0ebf32a44c77326c9634b35bdc (patch) | |
| tree | 03958c6a76a21f2c6d634bcbba5a6db0ce14bf89 /clang/lib/Driver/Tools.cpp | |
| parent | 9fdeb37bd346089488c5fe77a7edf16ee2f34cb1 (diff) | |
| download | llvm-007215044b48de0ebf32a44c77326c9634b35bdc.zip llvm-007215044b48de0ebf32a44c77326c9634b35bdc.tar.gz llvm-007215044b48de0ebf32a44c77326c9634b35bdc.tar.bz2 | |
Add driver flags -ftrigraphs, -fno-trigraphs.
-trigraphs is now an alias for -ftrigraphs. -fno-trigraphs makes it possible
to explicitly disable trigraphs, which couldn't be done before.
clang -std=c++11 -fno-trigraphs
now builds without GNU extensions, but with trigraphs disabled. Previously,
trigraphs were only disabled in GNU modes or with -std=c++1z.
Make the new -f flags the cc1 interface too. This requires changing -trigraphs
to -ftrigraphs in a few cc1 tests.
Related to PR21974.
llvm-svn: 224790
Diffstat (limited to 'clang/lib/Driver/Tools.cpp')
| -rw-r--r-- | clang/lib/Driver/Tools.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp index 1c5a9aa..5212d46 100644 --- a/clang/lib/Driver/Tools.cpp +++ b/clang/lib/Driver/Tools.cpp @@ -3412,8 +3412,10 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, else Std->render(Args, CmdArgs); + // If -f(no-)trigraphs appears after the language standard flag, honor it. if (Arg *A = Args.getLastArg(options::OPT_std_EQ, options::OPT_ansi, - options::OPT_trigraphs)) + options::OPT_ftrigraphs, + options::OPT_fno_trigraphs)) if (A != Std) A->render(Args, CmdArgs); } else { @@ -3429,7 +3431,8 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, else if (IsWindowsMSVC) CmdArgs.push_back("-std=c++11"); - Args.AddLastArg(CmdArgs, options::OPT_trigraphs); + Args.AddLastArg(CmdArgs, options::OPT_ftrigraphs, + options::OPT_fno_trigraphs); } // GCC's behavior for -Wwrite-strings is a bit strange: |