Shuffles 32-bit integers in 128-bit lanes of a using the control in
imm8.
#[cfg(target_arch = "x86")]
use std::arch::x86::*;
#[cfg(target_arch = "x86_64")]
use std::arch::x86_64::*;
# fn main() {
# if is_x86_feature_detected!("avx2") {
# #[target_feature(enable = "avx2")]
# unsafe fn worker() {
let a = _mm256_setr_epi32(0, 1, 2, 3, 4, 5, 6, 7);
let c1 = _mm256_shuffle_epi32(a, 0b00_11_10_01);
let c2 = _mm256_shuffle_epi32(a, 0b01_00_10_11);
let expected1 = _mm256_setr_epi32(1, 2, 3, 0, 5, 6, 7, 4);
let expected2 = _mm256_setr_epi32(3, 2, 0, 1, 7, 6, 4, 5);
assert_eq!(_mm256_movemask_epi8(_mm256_cmpeq_epi8(c1, expected1)), !0);
assert_eq!(_mm256_movemask_epi8(_mm256_cmpeq_epi8(c2, expected2)), !0);
# }
# unsafe { worker(); }
# }
# }
Intel's documentation