https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65078
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 35044 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35044&action=edit gcc5-pr65078.patch Untested fix using a pre-reload splitter of mov[sd]i if the source is SI/DImode lowpart subreg of 16/32/64 byte vector register.
