https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105245
--- Comment #2 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
0x0000000000b5b5c9 in clear_no_implicit_zero (ctor=<constructor
0x7fffea4a4ed0>) at /home/mpolacek/src/gcc/gcc/cp/constexpr.cc:1892
1892 if (TREE_CODE (e.value) == CONSTRUCTOR)
(gdb) p ctor
$3 = <constructor 0x7fffea4a4ed0>
(gdb) pge
{.b=}
that ctor doesn't look right...
