_mm_rcp14_sd in core::arch::x86 - Rust
Description: Compute the approximate reciprocal 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.

## _mm_rcp14_sd

# Function _mm_rcp14_sd

1.89.0 · Source

    pub fn _mm_rcp14_sd(a: __m128d, b: __m128d) -> __m128d

Available on x86 and target feature `avx512f` only.
Expand description

Compute the approximate reciprocal 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.

Intel’s documentation