https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121925
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- The other lane appears after lowering load permutations, but I did not want to mess with SLP pattern recog, so did not place it before. Possibly load permute lowering will also break some cases. This is unfortunately still a quite ugly area. One possibility is to simply look at the DR group instead of just the SLP load, but you won't get to see the SLP load for the other part this way (or without SLP "backedges" even with lowered permutes). What are the existing optab names for the cases we handle?
