https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117873
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|Spurious |Spurious |-Wmaybe-uninitialized |-Wmaybe-uninitialized |warnings with -O3 for |warnings with |static const std::regex |-fsanitize=address -O3 for | |static const std::regex --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- -fsanitize=address is important which is not suprising.