https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88767
--- Comment #3 from Michael Matz <matz at gcc dot gnu.org> --- I don't see anything to improve either (as far as unroll-and-jam is concerned). It's quite possible that cunrolli is harming more than helping in this case, but with it disabled it seems the code is as it should be. So, please state what you want to see changed: unroll-and-jam or cunrolli?
