https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70182
--- Comment #8 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- (In reply to Ian Lance Taylor from comment #7) > For the record, I've fixed these cases in > github.com/ianlancetaylor/demangle. Looking at the patch there should show > how to fix it elsewhere. > > https://github.com/ianlancetaylor/demangle/commit/ > 33b3934fafc5026e0b38854a7976b91ad0014a02 Thanks. So are you saying that gcc's mangling _ZN5folly12addBenchmarkIUliE_EENSt9enable_ifIXeqsrN5boost14function_types14function_arityIDTadsrT_clEEE5valueLi2EEvE4typeEPKcSC_OS6_ instead of _ZN5folly12addBenchmarkIUliE_EENSt9enable_ifIXeqsrN5boost14function_types14function_arityIDTadsrT_onclEEE5valueLi2EEvE4typeEPKcSC_OS6_ may be a wrong code bug?