SS0               330 maint/gnulib/lib/sha256.c #define R(A,B,C,D,E,F,G,H,K,M)  do { t0 = SS0(A) + F2(A,B,C); \
SS0               360 maint/gnulib/lib/sha512.c       u64 t0 = u64plus (SS0 (A), F2 (A, B, C));                           \