[Bug target/119565] New: 13-17% regression of botan CAS128 and DES on zen4

Tue, 01 Apr 2025 01:33:20 -0700 

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119565

            Bug ID: 119565
           Summary: 13-17% regression of botan CAS128 and DES on zen4
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hubicka at gcc dot gnu.org
  Target Milestone: ---

This is visible on:
https://lnt.opensuse.org/db_default/v4/CPP/graph?plot.0=553.676.1
https://lnt.opensuse.org/db_default/v4/CPP/graph?plot.0=553.675.1
https://lnt.opensuse.org/db_default/v4/CPP/graph?plot.0=553.686.1
https://lnt.opensuse.org/db_default/v4/CPP/graph?plot.0=553.685.1

May be just code layout change due to scheduling...

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