https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100629
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #3) > The difference is > PatternDriver::TemplateEnum<PatternDriver::complement_names[abi:cxx11] > vs > PatternDriver::TemplateEnum<PatternDriver::complement_names Can you attach the preprocessed source for both?