Function _mm_cvtness_sbh

#[target_feature(enable = "avx512bf16", enable = "avx512vl")]
pub fn _mm_cvtness_sbh(a: f32) -> bf16

Converts a single-precision (32-bit) floating-point element in a to a BF16 (16-bit) floating-point element, and store the result in dst.

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