https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92658
--- Comment #17 from Hongtao.liu <crazylht at gmail dot com> --- Created attachment 48570 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48570&action=edit 0001-Add-missing-vector-truncmn2-expanders-PR92658.patch Seems there're only truncmn2 for truncate, not expander for us_truncate and ss_truncate, am i missing?