[Bug rtl-optimization/64081] [5/6 Regression] r217827 prevents RTL loop unroll

[afomin.mailbox at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64081

--- Comment #23 from Alexander Fomin <afomin.mailbox at gmail dot com> ---
Created attachment 37574
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37574&action=edit
Original patch

It would be great, thank you.
Here is the original patch I've evaluated.