rotr64
d = rotr64(d ^ a, 32); \
b = rotr64(b ^ c, 24); \
d = rotr64(d ^ a, 16); \
b = rotr64(b ^ c, 63); \
static ossl_inline uint64_t rotr64(const uint64_t w, const unsigned int c);
d = rotr64(d ^ a, 32); \
b = rotr64(b ^ c, 24); \
d = rotr64(d ^ a, 16); \
b = rotr64(b ^ c, 63); \