[Bug target/52889] incorrect sign of _mm_nmsub_XX intrinsics in fma4intrin.h

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52889

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|critical                    |normal

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I am not sure how important this is since FMA4 was only supported on a few AMD
chips FMA4 and is no longer implemented on newer AMD chips (since Zen 1).
I will double check to see if the definition was fixed though ...