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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/109573] [11/12/13 regression] ICE in
 vectorizable_live_operation, at tree-vect-loop.cc:9060 with -march=ivybridge
 since r11-3025-g095d42feed09f8
Date: Wed, 26 Apr 2023 10:41:16 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109573

--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:c7de861c609573b1f219fcdf6c683612c987621f

commit r12-9472-gc7de861c609573b1f219fcdf6c683612c987621f
Author: Richard Biener <rguenther@suse.de>
Date:   Fri Apr 21 12:57:17 2023 +0200

    tree-optimization/109573 - avoid ICEing on unexpected live def

    The following relaxes the assert in vectorizable_live_operation
    where we catch currently unhandled cases to also allow an
    intermediate copy as it happens here but also relax the assert
    to checking only.

            PR tree-optimization/109573
            * tree-vect-loop.cc (vectorizable_live_operation): Allow
            unhandled SSA copy as well.  Demote assert to checking only.

            * g++.dg/vect/pr109573.cc: New testcase.

    (cherry picked from commit cddfe6bc40b3dc0806e260bbfb4cac82d609a258)=