[Bug target/88571] AVX512: when calculating logical expression with all values in kN registers, do not use GPRs

[bugzi...@poradnik-webmastera.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88571

--- Comment #2 from Daniel Fruzynski <bugzi...@poradnik-webmastera.com> ---
Yes. Issue still exists in g++ (GCC-Explorer-Build) 9.0.0 20181219
(experimental).