[Bug tree-optimization/91934] Performance regression on 8.3.0 with -O3 and avx

[tochansky at tochlab dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91934

--- Comment #3 from Dmitrii Tochanskii <tochansky at tochlab dot net> ---
Yep, -fno-loop-unroll-and-jam helps me! Interesting.