_mm_mask_rsqrt14_ss in core::arch::x86 - Rust
Description: Compute the approximate reciprocal square root of the lower single-precision (32-bit) floating-point element in b, store the result in the lower element of dst using writemask k (the element is copied from src when mask bit 0 is not set), and copy the upper 3 packed elements from a to the upper elements of dst. The maximum relative error for this approximation is less than 2^-14.
Keywords: rust, rustlang, rust-lang, _mm_mask_rsqrt14_ss

# Function core::arch::x86::_mm_mask_rsqrt14_ss
[−][src]

    pub unsafe fn _mm_mask_rsqrt14_ss(
        src: __m128,
        k: __mmask8,
        a: __m128,
        b: __m128
    ) -> __m128

🔬 This is a nightly-only experimental API. (`stdsimd` #48556)
This is supported on x86 and target feature `avx512f` only.
Expand description

Compute the approximate reciprocal square root of the lower single-precision (32-bit) floating-point element in b, store the result in the lower element of dst using writemask k (the element is copied from src when mask bit 0 is not set), and copy the upper 3 packed elements from a to the upper elements of dst. The maximum relative error for this approximation is less than 2^-14.

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