Function core::arch::x86::_mm_mask_rcp14_pd[][src]

pub unsafe fn _mm_mask_rcp14_pd(
    src: __m128d,
    k: __mmask8,
    a: __m128d
) -> __m128d
🔬 This is a nightly-only experimental API. (stdsimd #48556)
This is supported on x86 and target feature avx512f,avx512vl only.
Expand description

计算 a 中包装的双精度 (64-bit) 浮点元素的近似倒数,并使用写掩码 k 将结果存储在 dst 中 (当未设置相应的掩码位时,元素将从 src 复制)。该近似值的最大相对误差小于 2^-14。

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