Function _mm_cvttps_epu64 

pub fn _mm_cvttps_epu64(a: __m128) -> __m128i

Available on x86-64 and target feature avx512dq and target feature avx512vl only.

Convert packed single-precision (32-bit) floating-point elements in a to packed unsigned 64-bit integers with truncation, and store the result in dst.

Intel’s Documentation