[Bug rtl-optimization/94790] Failure to use andn in specific pattern in which it is available

[luoxhu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94790

luoxhu at gcc dot gnu.org changed:

           What    |Removed                     |Added
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                 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.