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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/107946] [13 Regression] 507.cactuBSSN_r
 regresses by ~9% on znver3 with PGO since r13-3875-g9e11ceef165bc0
Date: Fri, 02 Dec 2022 07:04:28 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107946

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:5b50850c3c6f2eceb8012dcc8d3cd5ddd94fac6c

commit r13-4458-g5b50850c3c6f2eceb8012dcc8d3cd5ddd94fac6c
Author: Richard Biener <rguenther@suse.de>
Date:   Thu Dec 1 16:14:14 2022 +0100

    Add --param max-unswitch-depth

    The following adds a --param to limit the depth of unswitched loop
    nests.  One can use --param max-unswitch-depth=3D1 to disable unswitchi=
ng
    of outer loops (the innermost loop will then be unswitched).

            PR tree-optimization/107946
            * params.opt (-param=3Dmax-unswitch-depth=3D): New.
            * doc/invoke.texi (--param=3Dmax-unswitch-depth): Document.
            * tree-ssa-loop-unswitch.cc (init_loop_unswitch_info): Honor
            --param=3Dmax-unswitch-depth=