Function core::arch::x86_64::_mm256_unpackhi_epi16

pub unsafe fn _mm256_unpackhi_epi16(a: __m256i, b: __m256i) -> __m256i

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

从每个高位的一半拆包并交织 16 位整数 a 和 b 的 128 位 lane

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

let a = _mm256_setr_epi16(
    0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
);
let b = _mm256_setr_epi16(
    0, -1, -2, -3, -4, -5, -6, -7, -8, -9, -10, -11, -12, -13, -14, -15,
);

let c = _mm256_unpackhi_epi16(a, b);

let expected = _mm256_setr_epi16(
    4, -4, 5, -5, 6, -6, 7, -7, 12, -12, 13, -13, 14, -14, 15, -15,
);
assert_eq!(_mm256_movemask_epi8(_mm256_cmpeq_epi8(c, expected)), !0);

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