Function core::arch::x86::_mm_getexp_round_sd [−][src]
pub unsafe fn _mm_getexp_round_sd<const SAE: i32>(
a: __m128d,
b: __m128d
) -> __m128d
This is supported on x86 and 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, 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.