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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/110221] With AVX512 fully masking
 gfortran.dg/pr68146.f ICEs
Date: Tue, 06 Feb 2024 13:20:05 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110221

--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-13 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:7c67939ec384425a3d7383dfb4fb39aa7e9ad20a

commit r13-8288-g7c67939ec384425a3d7383dfb4fb39aa7e9ad20a
Author: Richard Biener <rguenther@suse.de>
Date:   Fri Nov 10 12:39:11 2023 +0100

    tree-optimization/110221 - SLP and loop mask/len

    The following fixes the issue that when SLP stmts are internal defs
    but appear invariant because they end up only using invariant defs
    then they get scheduled outside of the loop.  This nice optimization
    breaks down when loop masks or lens are applied since those are not
    explicitly tracked as dependences.  The following makes sure to never
    schedule internal defs outside of the vectorized loop when the
    loop uses masks/lens.

            PR tree-optimization/110221
            * tree-vect-slp.cc (vect_schedule_slp_node): When loop
            masking / len is applied make sure to not schedule
            intenal defs outside of the loop.

            * gfortran.dg/pr110221.f: New testcase.

    (cherry picked from commit e5f1956498251a4973d52c8aad3faf34d0443169)=