core::arch::x86::_mm256_unpackhi_epi8 - Rust
Description: API documentation for the Rust `_mm256_unpackhi_epi8` fn in crate `core`.
Keywords: rust, rustlang, rust-lang, _mm256_unpackhi_epi8

# 1.27.0[−][src]Function core::arch::x86::_mm256_unpackhi_epi8

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

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);
    Run

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