Function tracing_core::stdlib::arch::x86_64::_mm_getexp_round_sh
source · pub unsafe fn _mm_getexp_round_sh<const SAE: i32>(
a: __m128h,
b: __m128h,
) -> __m128h
🔬This is a nightly-only experimental API. (
stdarch_x86_avx512_f16
#127213)Available on x86-64 only.
Expand description
Convert the exponent of the lower half-precision (16-bit) floating-point element in b to a half-precision
(16-bit) floating-point number representing the integer exponent, store the result in the lower element
of dst, and copy the upper 7 packed elements from a to the upper elements 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