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From: "olegendo at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/101469] wrong code with "-O2 -fPIE" for SH
Date: Mon, 19 Jul 2021 05:55:36 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101469

--- Comment #4 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Rin Okuyama from comment #3)
> Thank you very much for your analysis!
>=20
> If that peephole is removed, GCC 10.3 generates working codes.
>=20
> NetBSD/shle built by this compiler works fine as far as I can see.
> I'm carrying out full regression tests of NetBSD on this system.
> (It takes about a day to finish.)
>=20
> Is there a better fix than mechanically removing that peephole?

Thanks for reporting and analyzing this issue.

I was suspecting that to be a broken peephole pattern.  Of course it's bett=
er
to fix the broken pattern instead of deleting it completely.

I'll try to come up with a patch during this week.=