## _mm256_fcmadd_pch

# Function _mm256_fcmadd_pch

1.94.0 · Source

    pub fn _mm256_fcmadd_pch(a: __m256h, b: __m256h, c: __m256h) -> __m256h

Available on x86 and target feature `avx512fp16` and target feature `avx512vl` only.
Expand description

Multiply packed complex numbers in a by the complex conjugates of packed complex numbers in b, accumulate to the corresponding complex numbers in c, 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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