https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110382
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
(In reply to Marek Polacek from comment #2)
> Note that changing
> double a = 0;
> to
> double a = 0.;
> gets rid of the ICE!
...because the latter means the {} is reduced_constant_expression_p and
TREE_CONSTANT, so we never call cxx_eval_bare_aggregate.
