Function _mm256_conj_pch 

pub fn _mm256_conj_pch(a: __m256h) -> __m256h

Available on x86-64 and target feature avx512fp16 and target feature avx512vl and (x86 or x86-64) only.

Compute the complex conjugates of complex numbers in a, and store the results in dst. Each complex number is composed of two adjacent half-precision (16-bit) floating-point elements, which defines the complex number complex = vec.fp16[0] + i * vec.fp16[1], or the complex conjugate conjugate = vec.fp16[0] - i * vec.fp16[1].

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