s1
#define s1 (s1u.e)
#define s1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHR(x, 10))
#define s1(x) (ROTR(x, 19) ^ ROTR(x, 61) ^ SHR(x, 6))
struct s1 {
struct s1 {
struct s1 {