[Bug target/126429] [i386] _mm512_{mask,maskz}_dpbf16_ps only honor the low 8 bits of the __mmask16 (kmovb instead of kmovw)

[michael.crusoe at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126429

Michael Crusoe <michael.crusoe at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #9 from Michael Crusoe <michael.crusoe at gmail dot com> ---
The reproducer from https://godbolt.org/z/T46G4deG7(In reply to Haochen Jiang
from comment #1)
> Confirmed. It should not emit kmovb under -mavx512dq -mavx512bf16.
> 
> https://godbolt.org/z/T46G4deG7
> 
> A quick patch underway after I did a test.

I can confirm this reproducer now show the correct output as the Compiler
Explorer x86-64 gcc (trunk) has be updated to the 20260730 snapshot.