# Function _mm256_unpacklo_epi16

1.27.0 · Source

    pub fn _mm256_unpacklo_epi16(a: __m256i, b: __m256i) -> __m256i

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

Unpacks and interleave 16-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_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_unpacklo_epi16(a, b);

    let expected = _mm256_setr_epi16(
        0, 0, 1, -1, 2, -2, 3, -3, 8, -8, 9, -9, 10, -10, 11, -11,
    );
    assert_eq!(_mm256_movemask_epi8(_mm256_cmpeq_epi8(c, expected)), !0);

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