https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89213
--- Comment #1 from Michael Meissner <meissner at gcc dot gnu.org> --- Created attachment 45611 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45611&action=edit Proposed patch to fix the problem This patch adds combiner insns to match attempted vector long long shifts by a constant on ISA 3.0.