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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/40457] use stm and ldm to access consecutive memory
 words
Date: Sat, 14 Jan 2023 00:16:44 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D40457

--- Comment #15 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Alexandre Oliva <aoliva@gcc.gnu.org>:

https://gcc.gnu.org/g:acddf6665f067bc98a2529a699b1d4509a7387cb

commit r13-5160-gacddf6665f067bc98a2529a699b1d4509a7387cb
Author: Alexandre Oliva <oliva@adacore.com>
Date:   Fri Jan 13 21:15:41 2023 -0300

    [PR40457] [arm] expand SI-aligned movdi into pair of movsi

    When expanding a misaligned DImode move, emit aligned SImode moves if
    the parts are sufficiently aligned.  This enables neighboring stores
    to be peephole-combined into stm, as expected by the PR40457 testcase,
    even after SLP vectorizes the originally aligned SImode stores into a
    misaligned DImode store.


    for  gcc/ChangeLog

            PR target/40457
            * config/arm/arm.md (movmisaligndi): Prefer aligned SImode
            moves.=