https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113104
--- Comment #3 from rguenther at suse dot de <rguenther at suse dot de> --- On Thu, 21 Dec 2023, fxue at os dot amperecomputing.com wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113104 > > --- Comment #2 from Feng Xue <fxue at os dot amperecomputing.com> --- > (In reply to Richard Biener from comment #1) > > See my proposal on the mailing list to lift the restriction of sticking to a > > single vector size, I think this is another example showing this. If you > > use BB level vectorization by disabling loop vectorization but not SLP > > vectorization the code should improve? > > Yes, the loop is fully unrolled, and BB SLP would. I suspect even when the loop isn't unrolled (just increase iteration count) the code would improve > I could not find the proposal, would you share me a link? Thanks https://gcc.gnu.org/pipermail/gcc-patches/2023-December/640476.html