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From: "hubicka at ucw dot cz" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug ipa/97652] [11 Regression] New gfortran.dg/pdt_14.f03 failure
 after g:617695cdc2b3d950f1e4deb5ea85d5cc302943f4
Date: Mon, 02 Nov 2020 14:32:15 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97652

--- Comment #10 from Jan Hubicka <hubicka at ucw dot cz> ---
> > Aha, that will be the wrong jump function from ipa-cp I mentioned in
> > earlier comment.  We should not believe that root is not written to as
> > we derive now from TBAA in push_8.
>=20
> But -fno-ipa-cp doesn't help.

It is because jump functions are used both by inlining and ipa-cp.   If
inline predicates says that the path is impossible (which it will
derriving from jump function) we redirect to unreachable.

Honza=