https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95179
Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 CC| |mpolacek at gcc dot gnu.org Keywords| |rejects-valid Status|UNCONFIRMED |NEW Last reconfirmed| |2020-05-17 --- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> --- Confirmed. The problem is that grokfield calls finish_static_data_member_decl with LOOKUP_IMPLICIT, and that implies LOOKUP_ONLYCONVERTING, so we skip the explicit ctor.