Function core::arch::x86_64::_mm_mask_getexp_pd

pub unsafe fn _mm_mask_getexp_pd(src: __m128d, k: __mmask8, a: __m128d) -> __m128d

🔬 This is a nightly-only experimental API. (stdsimd #48556)

Available on x86-64 and target feature avx512f,avx512vl only.

Convert the exponent of each packed double-precision (64-bit) floating-point element in a to a double-precision (64-bit) floating-point number representing the integer exponent, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set). This intrinsic essentially calculates floor(log2(x)) for each element.

Intel’s documentation