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From: "hubicka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/110586] [14 Regression] 10% fatigue2 regression on
 zen since r14-2369-g3a61ca1b925653
Date: Mon, 17 Jul 2023 09:02:39 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110586

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2023-07-17

--- Comment #2 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Do we have other PRs reducing to this change?

The patch makes cuntroll to scale down previously incoherent profiles when =
loop
that does not loop is predicted to loop.
Common source of these loops are vectorized epilogues which I fixed yesterd=
ay.
With some luck this may fix fatigue.=