[Bug target/120941] [16 Regression] 10-40% slowdown of 519.lbm_r on Zen{2,3} since r16-1644-gaba3b9d3a48a07

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120941

Filip Kastl <pheeck at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[16 Regression] 20-40%      |[16 Regression] 10-40%
                   |slowdown of 519.lbm_r on    |slowdown of 519.lbm_r on
                   |Zen2 since                  |Zen{2,3} since
                   |r16-1644-gaba3b9d3a48a07    |r16-1644-gaba3b9d3a48a07

--- Comment #1 from Filip Kastl <pheeck at gcc dot gnu.org> ---
There is also a ~10% slowdown on Zen3, probably the same problem:
https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=475.477.0
(the same cmdline options)