pub unsafe fn _mm_rsqrt_sh(a: __m128h, b: __m128h) -> __m128h🔬This is a nightly-only experimental API. (
stdarch_x86_avx512_f16 #127213)Available on (x86 or x86-64) and target feature
avx512fp16 and x86-64 only.Expand description
Compute the approximate reciprocal square root of the lower half-precision (16-bit) floating-point
element in b, store the result in the lower element of dst, and copy the upper 7 packed elements from a
to the upper elements of dst.
The maximum relative error for this approximation is less than 1.5*2^-12.