pub unsafe fn _mm256_broadcast_f32x4(a: __m128) -> __m256
🔬 This is a nightly-only experimental API. (stdsimd #48556)
Available on x86 and target feature avx512f,avx512vl only.
Expand description

Broadcast the 4 packed single-precision (32-bit) floating-point elements from a to all elements of dst.

Intel’s documentation