https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94790
luoxhu at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |luoxhu at gcc dot gnu.org --- Comment #3 from luoxhu at gcc dot gnu.org --- On Power, '(~mask & a) | (b & mask)' is better than 'a ^ ((a ^ b) & mask)' as the first can be generated as one instruction 'xxsel' as PR90323 shows.