arch:: x86:: _mm256_rsqrt_ps
pub unsafe fn _mm256_rsqrt_ps(a: __m256) -> __m256
This is supported on x86 and target feature
Computes the approximate reciprocal square root of packed single-precision
(32-bit) floating-point elements in
a, and returns the results.
The maximum relative error for this approximation is less than 1.5*2^-12.