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From: "sjames at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/112415] [14 regression] Python 3.11
 miscompiled on HPPA with new RTL fold mem offset pass, since
 r14-4664-g04c9cf5c786b94
Date: Tue, 07 Nov 2023 21:12:25 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112415

--- Comment #12 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to Manolis Tsamis from comment #11)
> Hi all,
>=20
> I will also go ahead and try to reproduce that, although it may take me s=
ome
> time due to my limited experience with HPPA. Once I manage to reproduce,
> most f-m-o issues are straightforward to locate by bisecting the transfor=
med
> instructions.

Thanks! You are very welcome to have access to some HPPA machines for this =
kind
of work. Please email me an SSH public key + desired username if that sounds
helpful.

>=20
> > I think the key object is Python/compile.o, but not certain yet.
>=20
> In this case the dump file of fold-mem-offsets
> (-fdump-rtl-fold_mem_offsets-all) could also be useful, as it contains all
> the information needed to see whether a transformation is valid. If it wo=
uld
> be easy for anyone to provide the dump file, I could look at it and see if
> anything stands out (until I manage to reproduce this).

I'll get the dumps in a moment, thanks.=