https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111050
François Dumont <fdumont at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |fdumont at gcc dot gnu.org --- Comment #1 from François Dumont <fdumont at gcc dot gnu.org> --- A 3 years old abi regression seems difficult to fix now. To do so we would need to break abi again. It seems to be a limited issue as you need a non-optimized build. The only impacted member is the _M_next() which is a simple static_cast, I'm very surprised that it's not always inlined even if non-optimized. Apart perhaps documenting it I cannot think of anything to do.