# Function _mm256_mask_fmadd_pch

Source

    pub fn _mm256_mask_fmadd_pch(
        a: __m256h,
        k: __mmask8,
        b: __m256h,
        c: __m256h,
    ) -> __m256h

🔬This is a nightly-only experimental API. (`stdarch_x86_avx512_f16` #127213)
Available on (x86 or x86-64) and target feature `avx512fp16,avx512vl` and x86 only.
Expand description

Multiply packed complex numbers in a and b, accumulate to the corresponding complex numbers in c, and store the results in dst using writemask k (the element is copied from a when the corresponding mask bit is not set). 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]`.

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