[Bug c++/96638] [9/10/11/12 Regression] ICE in chainon, at tree.c:3169

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96638

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Marek Polacek from comment #1)
> Even GCC 6 ICEs.

I suspect GCC 5 did not ICE, see PR 96637 .