https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79639
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 40805 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40805&action=edit gcc7-pr79639.patch Untested fix. Not really sure about it though.
