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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 target/103100] [11/12/13/14 Regression] unaligned access
 generated with memset or {} and -O2 -mstrict-align
Date: Thu, 30 Nov 2023 13:49:32 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103100

--- Comment #25 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Wilco Dijkstra <wilco@gcc.gnu.org>:

https://gcc.gnu.org/g:318f5232cfb3e0c9694889565e1f5424d0354463

commit r14-6012-g318f5232cfb3e0c9694889565e1f5424d0354463
Author: Wilco Dijkstra <wilco.dijkstra@arm.com>
Date:   Wed Oct 25 16:28:04 2023 +0100

    AArch64: Fix strict-align cpymem/setmem [PR103100]

    The cpymemdi/setmemdi implementation doesn't fully support strict
alignment.
    Block the expansion if the alignment is less than 16 with STRICT_ALIGNM=
ENT.
    Clean up the condition when to use MOPS.

    gcc/ChangeLog/
            PR target/103100
            * config/aarch64/aarch64.md (cpymemdi): Remove pattern conditio=
n.
            (setmemdi): Likewise.
            * config/aarch64/aarch64.cc (aarch64_expand_cpymem): Support
            strict-align.  Cleanup condition for using MOPS.
            (aarch64_expand_setmem): Likewise.=