[Bug target/83479] Register spilling in AVX code

[bugzilla@poradnik-webmastera.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83479

--- Comment #6 from Daniel Fruzynski <bugzilla@poradnik-webmastera.com> ---
One correction: In c#4 line 17 has incorrect index, should be 8 instead of 9.
For some reason gcc did not complain here.

vLastRow = _mm512_load_pd (&data[8][0]);