Function _mm_fmul_sch

#[target_feature(enable = "avx512fp16")]
pub fn _mm_fmul_sch(a: __m128h, b: __m128h) -> __m128h

Multiply the lower complex numbers in a and b, 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].

Intel's documentation