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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/109031] csmith: possible bad code with -O2
 -fno-strict-aliasing
Date: Wed, 08 Mar 2023 14:24:20 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109031

--- Comment #16 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
(In reply to David Binderman from comment #15)
> (In reply to Martin Li=C5=A1ka from comment #14)
> > > cvise is written in perl, isn't it ? You've got my cvise script.
> >=20
> > No, it's written in Python.
>=20
> Of course. How stupid of me.
>=20
> > So show me how you run cvise then?
>=20
> $ cvise --n 8 qwe.sh bug892.c
>=20
> where qwe.sh is the script shown above and bug892.c is the csmith
> produced C source code I am trying to reduce.

and what error do you see?

Then please run:

bash -x qwe.sh bug892.c=