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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/99824] [10 Regression] ICE in
 wide_int_to_tree_1, at tree.c:1572
Date: Tue, 30 Mar 2021 09:16:00 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99824

--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Martin Li=C5=A1ka from comment #6)
> > diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c
> > index 784f131ebb8..94b8b21c7a8 100644
> > --- a/gcc/stor-layout.c
> > +++ b/gcc/stor-layout.c
> > @@ -2838,6 +2838,8 @@ set_min_and_max_values_for_integral_type (tree ty=
pe,
> >    if (precision < 1)
> >      return;
> >=20=20
> > +  gcc_assert (precision <=3D WIDE_INT_MAX_PRECISION);
> > +
> >    TYPE_MIN_VALUE (type)
> >      =3D wide_int_to_tree (type, wi::min_value (precision, sgn));
> >    TYPE_MAX_VALUE (type)
> >=20
> > should uncover any similar issue and eventually allow producing smaller
> > testcases.
>=20
> Where would you expect the assert to be triggered? In LTO/non-LTO mode?

Eventually in both.  The assert also triggers with the cited change reverted
so I do think the issue is latent.=