1.27.0[−][src]Function core::arch::x86_64::_mm256_unpacklo_epi8
pub unsafe fn _mm256_unpacklo_epi8(a: __m256i, b: __m256i) -> __m256i
This is supported on x86-64 and target feature
avx2
only.Unpacks and interleave 8-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_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_unpacklo_epi8(a, b); let expected = _mm256_setr_epi8( 0, 0, 1, -1, 2, -2, 3, -3, 4, -4, 5, -5, 6, -6, 7, -7, 16, -16, 17, -17, 18, -18, 19, -19, 20, -20, 21, -21, 22, -22, 23, -23, ); assert_eq!(_mm256_movemask_epi8(_mm256_cmpeq_epi8(c, expected)), !0); Run