(func $i8x16.shuffle-1st-arg-empty (result v128)  (i8x16.shuffle    (v128.const i8x16 0 1 2 3 5 6 6 7 8 9 10 11 12 13 14 15)    (v128.const i8x16 1 2 3 5 6 6 7 8 9 10 11 12 13 14 15 16)  ))