Function core::arch::x86_64::_mm256_unpacklo_epi32

pub unsafe fn _mm256_unpacklo_epi32(a: __m256i, b: __m256i) -> __m256i

This is supported on x86-64 and target feature avx2 only.

Unpack and interleave 32-bit integers from the low half of each 128-bit lane of a and b.

#[cfg(target_arch = "x86")]
use std::arch::x86::*;
#[cfg(target_arch = "x86_64")]
use std::arch::x86_64::*;

let a = _mm256_setr_epi32(0, 1, 2, 3, 4, 5, 6, 7);
let b = _mm256_setr_epi32(0,-1,-2,-3,-4,-5,-6,-7);

let c = _mm256_unpacklo_epi32(a, b);

let expected = _mm256_setr_epi32(0, 0, 1,-1, 4,-4, 5,-5);
assert_eq!(_mm256_movemask_epi8(_mm256_cmpeq_epi8(c, expected)), !0);

Intel's documentation