Function core::arch::x86_64::_mm256_mpsadbw_epu8

pub unsafe fn _mm256_mpsadbw_epu8(
    a: __m256i,
    b: __m256i,
    const IMM8: i32
) -> __m256i

Available on (x86 or x86-64) and target feature avx2 only.

Computes the sum of absolute differences (SADs) of quadruplets of unsigned 8-bit integers in a compared to those in b, and stores the 16-bit results in dst. Eight SADs are performed for each 128-bit lane using one quadruplet from b and eight quadruplets from a. One quadruplet is selected from b starting at on the offset specified in imm8. Eight quadruplets are formed from sequential 8-bit integers selected from a starting at the offset specified in imm8.

Intel’s documentation