https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105853
--- Comment #1 from David Binderman <dcb314 at hotmail dot com> ---
Reduced C code seems to be:
struct {
struct {
short e16[3];
}
} const eth_addr_zero = {{}};
void compose_nd_na_ipv6_src() { packet_set_nd(eth_addr_zero); }
Note no -march= setting is required.
