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From: "vmakarov at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/70164] [8/9/10 Regression] Code/performance
 regression due to poor register allocation on Cortex-M0
Date: Tue, 21 Apr 2020 19:03:14 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D70164

--- Comment #27 from Vladimir Makarov <vmakarov at gcc dot gnu.org> ---
(In reply to Christophe Lyon from comment #26)
> For what CPU did you configure GCC?
> With today's trunk I still see the same code as in comment #24.
>=20
> I can get the same code as you have in comment #25 if I force
> -mcpu=3Dcortex-a9.
>=20
> The bug report is about cortex-m0, so you either need to configure GCC
> --with-cpu=3Dcortex-m0 or use -mcpu=3Dcortex-m0

Ok.  Thank you.  I've reproduced this with -mcpu=3Dcortex-m0.=