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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 rtl-optimization/109585] [10/11/12/13 regression] Carla/sord
 miscompiled with -O2 on ARM64 with flexible array member
Date: Wed, 26 Apr 2023 09:33:56 +0000
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X-Bugzilla-Keywords: alias, wrong-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109585

--- Comment #25 from CVS 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:bb406a6aea336966681927a27f54ee89c4fd4ea1

commit r13-7251-gbb406a6aea336966681927a27f54ee89c4fd4ea1
Author: Richard Biener <rguenther@suse.de>
Date:   Mon Apr 24 13:31:07 2023 +0200

    rtl-optimization/109585 - alias analysis typo

    When r10-514-gc6b84edb6110dd2b4fb improved access path analysis
    it introduced a typo that triggers when there's an access to a
    trailing array in the first access path leading to false
    disambiguation.

            PR rtl-optimization/109585
            * tree-ssa-alias.cc (aliasing_component_refs_p): Fix typo.

            * gcc.dg/torture/pr109585.c: New testcase.

    (cherry picked from commit 6d4bd27a60447c7505cb4783e675e98a191a8904)=