[Bug tree-optimization/90491] simple operation with unsigned long integer and conversion to float not vectorized

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90491

--- Comment #4 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to g.peterhoff from comment #2)

> compile with gcc-9 and -O3 -march=native (avx/avx2 available @ ryzen 2 !)
> -mtune=intel -mno-vzeroupper

You need -mavx512dq to vectorize this.