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Subject: [Bug target/100106] [10 Regression] ICE in gen_movdi, at
 config/arm/arm.md:6187 since r10-2840-g70cdb21e
Date: Fri, 08 Apr 2022 10:20:56 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100106

--- Comment #8 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
(In reply to CVS Commits from comment #7)
> The releases/gcc-11 branch has been updated by Richard Biener
> <rguenth@gcc.gnu.org>:
>=20
> https://gcc.gnu.org/g:5155015ce57dc133e006f87fdf0237a5f259bebd
>=20

Just to note that on master it was necessary to apply r12-3480 as part of a
subsequent patch set.  The problem case was calling gen_highpart() on an
unaligned MEM.  Prior to this patch gen_highpart() would generate the expec=
ted
unaligned MEM for the narrower access, but after r12-163 we'd get (subreg(M=
EM))
being returned, which was unexpected.  I'm not going to backport that now as
it's not clear if this is needed for GCC-11.=