Function core::arch::x86::_mm256_unpackhi_epi8

pub unsafe fn _mm256_unpackhi_epi8(a: __m256i, b: __m256i) -> __m256i

🔬 This is a nightly-only experimental API. (stdsimd #48556)

This is supported on x86 and target feature avx2 only.

Unpack and interleave 8-bit integers from the high half of each 128-bit lane in 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_epi8(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31);
let b = _mm256_setr_epi8(0,-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,
-16,-17,-18,-19,-20,-21,-22,-23,-24,-25,-26,-27,-28,-29,-30,-31);

let c = _mm256_unpackhi_epi8(a, b);

let expected = _mm256_setr_epi8(8,-8, 9,-9, 10,-10, 11,-11, 12,-12, 13,-13,
14,-14, 15,-15, 24,-24, 25,-25, 26,-26, 27,-27, 28,-28, 29,-29, 30,-30,
31,-31);
assert_eq!(_mm256_movemask_epi8(_mm256_cmpeq_epi8(c, expected)), !0);