[Bug target/118966] [15 Regression] 6% slowdown of 464.h264ref on Aarch64

[pheeck at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118966

--- Comment #1 from Filip Kastl <pheeck at gcc dot gnu.org> ---
I've recently reported some slowdowns related to r15-7400.  Maybe that commit
caused this slowdown too?