Only slightly ugly, perform two additions. At least it is only supported
for 128 bit elements.
Introduce gen_gvec128_4_i64() similar to gen_gvec128_3_i64().
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
8d4eb4b6c2