https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78661
--- Comment #10 from janus at gcc dot gnu.org --- Created attachment 40357 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40357&action=edit draft patch The attached patch seems to make the original comment 0 as well as the polymorphic version in comment 7 work. Regtesting now ...