[Bug c++/64080] [5.0 regression][C++14]ICE in cxx_eval_store_expression

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64080

--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
4.9 rejects this.  This is ice-on-invalid, right?