Function core::arch::x86_64::_mm_getexp_ss

source ·
pub unsafe fn _mm_getexp_ss(a: __m128, b: __m128) -> __m128
🔬This is a nightly-only experimental API. (stdsimd #48556)
Available on (x86 or x86-64) and target feature avx512f and x86-64 only.
Expand description

Convert the exponent of the lower single-precision (32-bit) floating-point element in b to a single-precision (32-bit) floating-point number representing the integer exponent, store the result in the lower element of dst, and copy the upper 3 packed elements from a to the upper elements of dst. This intrinsic essentially calculates floor(log2(x)) for the lower element.

Intel’s documentation

This documentation is an old archive. Please see https://rust.docs.kernel.org instead.