[Bug target/111064] New: 5-10% regression of parest on icelake between g:d073e2d75d9ed492de9a8dc6970e5b69fae20e5a (Aug 15 2023) and g:9ade70bb86c8744f4416a48bb69cf4705f00905a (Aug 16)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111064

            Bug ID: 111064
           Summary: 5-10% regression of parest on icelake between
                    g:d073e2d75d9ed492de9a8dc6970e5b69fae20e5a (Aug 15
                    2023) and g:9ade70bb86c8744f4416a48bb69cf4705f00905a
                    (Aug 16)
           Product: gcc
           Version: 13.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hubicka at gcc dot gnu.org
  Target Milestone: ---

-Ofast -march=native
https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=801.457.0
-Ofast -march=native -flto + PGO
https://lnt.opensuse.org/db_default/v4/SPEC/graph?plot.0=792.457.0

It does not seem to show on zen or altra