https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86590
--- Comment #26 from Jakub Jelinek <jakub at gcc dot gnu.org> --- I'm also wondering about cxx_constant_init using !ctx->strict, shouldn't we in those cases really require strict constant expressions, i.e. let maybe_constant_init_1 call cxx_eval_outermost_constant_expr with allow_non_constant, !allow_non_constant rather than allow_non_constant, false ?