[Bug target/88035] missing _mm512_reduce_round_pd() et al

[mcccs at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88035

MCCCS <mcccs at gmx dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mcccs at gmx dot com

--- Comment #1 from MCCCS <mcccs at gmx dot com> ---
Only the `_mm_` reduce-intrinsics don't exist. You can still call them from GCC
by

1) Opening the table
https://github.com/llvm-mirror/clang/blob/master/lib/Headers/avx512dqintrin.h

2) Ctrl + F for the function (e.g. _mm512_reduce_round_pd)

3) Call the function in the definition (e.g. __builtin_ia32_reducepd512_mask)

But this is only a workaround, those `_mm_` functions/macros should be added, I
agree.