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Subject: [Bug target/102125] (ARM Cortex-M3 and newer) missed optimization.
 memcpy not needed operations
Date: Mon, 13 Sep 2021 10:27:18 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102125

--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Earnshaw <rearnsha@gcc.gnu.or=
g>:

https://gcc.gnu.org/g:f0cfd070b68772eaaa19a3b711fbd9e85b244240

commit r12-3481-gf0cfd070b68772eaaa19a3b711fbd9e85b244240
Author: Richard Earnshaw <rearnsha@arm.com>
Date:   Fri Sep 3 16:53:13 2021 +0100

    arm: expand handling of movmisalign for DImode [PR102125]

    DImode is currently handled only for machines with vector modes
    enabled, but this is unduly restrictive and is generally better done
    in core registers.

    gcc/ChangeLog:

            PR target/102125
            * config/arm/arm.md (movmisaligndi): New define_expand.
            * config/arm/vec-common.md (movmisalign<mode>): Iterate over VDQ
mode.=