https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62051
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |trippels at gcc dot gnu.org --- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- If you define "void Derived::func()" directly in the header if works as expected. And since ~Derived() calls this function you must provide it in every compilation unit. So the devirtualization looks correct to me.