https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117722
--- Comment #17 from Li Pan <pan2.li at intel dot com> --- (In reply to Vineet Gupta from comment #14) > (In reply to Li Pan from comment #7) > > Created attachment 59661 [details] > > with usad pattern > > Can you please post the patch, lest we duplicate your effort. > It would be nice to test it on real hardware. > I sent the draft to you and cc Robin for reference. I can help to add more test cases if we decide to implement usad.