Function core::arch::x86::_mm_rsqrt14_sd [−][src]
pub unsafe fn _mm_rsqrt14_sd(a: __m128d, b: __m128d) -> __m128d
This is supported on x86 and target feature
avx512f only.Expand description
Compute the approximate reciprocal square root of the lower double-precision (64-bit) floating-point element in b, store the result in the lower element of dst, and copy the upper element from a to the upper element of dst. The maximum relative error for this approximation is less than 2^-14.