[Bug target/90028] On Intel Skylake (-march=native) generated avx512 instruction can be wrong

[ferruh.yigit at intel dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90028

--- Comment #21 from Ferruh YIGIT <ferruh.yigit at intel dot com> ---
(In reply to Jakub Jelinek from comment #19)
> Upstream 2.31 and 2.31.1 is affected too, but 2.31 branch starting with
> August 2018 is not affected.  As the fix has been backported also to 2.30
> branch, I guess 2.30 is affected too, 2.32 is not affected.  Dunno about
> older binutils, you'll need to try.

Thanks.

We already have another problem with 2.30 and disabling avx512 for that case,
it seems we will need to extend it to 2.31 & 2.31.1 too, thanks.