[Bug target/109079] Missing optimization for x86 avx intrinsic _mm256_zeroall().

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109079

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
           Keywords|                            |missed-optimization
             Status|UNCONFIRMED                 |NEW
             Target|                            |x86_64-*-*
   Last reconfirmed|                            |2023-03-09

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I think it wasn't intended to be used this way, but sure.  Currently it's a
black-box in the target I think and so nothing sees the redundancy.