Function _mm256_bcstnebf16_ps

#[target_feature(enable = "avxneconvert")]
pub unsafe fn _mm256_bcstnebf16_ps(a: *const bf16) -> __m256

Convert scalar BF16 (16-bit) floating point element stored at memory locations starting at location a to single precision (32-bit) floating-point, broadcast it to packed single precision (32-bit) floating-point elements, and store the results in dst.

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