https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48609
--- Comment #8 from Hongtao.liu <crazylht at gmail dot com> --- > You have to do a little bit more. Like change how the extraction for the two > parts for the concat. We already have vec_extractv2sfsf/vec_setv2sf, will debug to figure out why they're not used.