Function surge_halfrate::imports::_mm_mask_getexp_round_sd
source · [−]pub unsafe fn _mm_mask_getexp_round_sd<const SAE: i32>(
src: __m128d,
k: u8,
a: __m128d,
b: __m128d
) -> __m128d🔬 This is a nightly-only experimental API. (
stdsimd)This is supported with target feature
avx512f only.Expand description
Convert the exponent of the lower double-precision (64-bit) floating-point element in b to a double-precision (64-bit) floating-point number representing the integer exponent, 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 element from a to the upper element of dst. This intrinsic essentially calculates floor(log2(x)) for the lower element.
Exceptions can be suppressed by passing _MM_FROUND_NO_EXC in the sae parameter.