SS0               323 maint/gnulib/lib/sha256.c #define SS0(x) (rol(x,30)^rol(x,19)^rol(x,10))
SS0               348 maint/gnulib/lib/sha512.c #define SS0(x) u64xor (u64rol (x, 36), u64xor (u64rol (x, 30), u64rol (x, 25)))