[Bug middle-end/118994] GCC fails to optimize (a >> 1) + (b >> 1) + ((a | b) & 1) to PAVGB/PAVGW (or equivalent instruction)

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118994

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2025-02-24

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Sounds reasonable, note the vectorizer has a pattern for this already.  The
issue with match.pd patterns is when we want to introduce those internal fns
(late, close to ISEL).