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Date: Thu, 10 Feb 2022 20:08:24 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104492

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This is most likely the case where we have:
....
T =3D y !=3D &z[0];
Z =3D {Clobber}
If(T)

And then forward prop the comparison after the clobber.=