S1                326 maint/gnulib/lib/sha256.c #define M(I) ( tm =   S1(x[(I-2)&0x0f]) + x[(I-7)&0x0f] \
S1                353 maint/gnulib/lib/sha512.c                          u64plus (S1 (x[((I) - 2) & 15]),                 \