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From: "jamborm at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/104762] x86_64 538.imagick_r 8%-28% regressions and 10%
 525.x264_r regressions after r12-7319-g90d693bdc9d718
Date: Wed, 02 Mar 2022 17:02:08 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104762

Martin Jambor <jamborm at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|x86_64 538.imagick_r 8%-28% |x86_64 538.imagick_r 8%-28%
                   |regressions after           |regressions and 10%
                   |r12-7319-g90d693bdc9d718    |525.x264_r regressions
                   |                            |after
                   |                            |r12-7319-g90d693bdc9d718

--- Comment #1 from Martin Jambor <jamborm at gcc dot gnu.org> ---
The same revision also regressed SPEC 2017 INTrate benchmark x264_r by
about 10% at -Ofast -march=3Dnative with and without LTO on zen3:

https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=3D471.377.0
https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=3D475.377.0

and I suspect (unlike the above, I have not actually verified it) also
on zen2:

https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=3D295.377.0
https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=3D287.377.0=