diff options
Diffstat (limited to 'clang/lib/Driver/Tools.cpp')
| -rw-r--r-- | clang/lib/Driver/Tools.cpp | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp index d519a4c9b5c..eca94b66ef6 100644 --- a/clang/lib/Driver/Tools.cpp +++ b/clang/lib/Driver/Tools.cpp @@ -3722,11 +3722,19 @@ void Clang::AddClangCLArgs(const ArgList &Args, ArgStringList &CmdArgs) const { // but defining _DEBUG is sticky. RTOptionID = options::OPT__SLASH_MTd; - if (Arg *A = Args.getLastArg(options::OPT__SLASH_MD, - options::OPT__SLASH_MDd, - options::OPT__SLASH_MT, - options::OPT__SLASH_MTd)) { + if (Arg *A = Args.getLastArg(options::OPT__SLASH_M_Group)) { RTOptionID = A->getOption().getID(); + + // Diagnose overrides. + arg_iterator it = Args.filtered_begin(options::OPT__SLASH_M_Group); + Arg *Previous = *it++; + const arg_iterator ie = Args.filtered_end(); + while (it != ie) { + const Driver &D = getToolChain().getDriver(); + D.Diag(clang::diag::warn_drv_overriding_flag_option) + << Previous->getSpelling() << (*it)->getSpelling(); + Previous = *it++; + } } switch(RTOptionID) { |
