[Bug target/127467] [17 Regression] avoid_avx512_perm not dropping back to 256 bit perm

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127467

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

           What    |Removed                     |Added
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           Keywords|                            |missed-optimization
   Target Milestone|---                         |17.0
             Target|                            |x86_64-*-*