https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58872
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|UNCONFIRMED |RESOLVED Target Milestone|--- |15.0 --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- ror/rol is handled by __builtin_stdc_rotate_right/__builtin_stdc_rotate_left https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html#index-_005f_005fbuiltin_005fstdc_005frotate_005fleft reverse bit string is just PR 50481 (a generic subset of bits is not going to be implemented). So closing as fixed.