Function core::arch::x86::_mm256_broadcastsi128_si256

pub unsafe fn _mm256_broadcastsi128_si256(a: __m128i) -> __m256i

This is supported on (non-crate feature miri-test-libstd or test or doctest) and x86 and target feature avx2 only.

Broadcasts 128 bits of integer data from a to all 128-bit lanes in the 256-bit returned value.

Intel’s documentation