pub unsafe fn _mm_rcp_sh(a: __m128h, b: __m128h) -> __m128h
🔬This is a nightly-only experimental API. (
stdarch_x86_avx512_f16
#127213)Available on (x86 or x86-64) and target feature
avx512fp16
and x86 only.Expand description
Compute the approximate reciprocal of the lower half-precision (16-bit) floating-point element in b,
store the result in the lower element of dst, and copy the upper 7 packed elements from a to the
upper elements of dst.
The maximum relative error for this approximation is less than 1.5*2^-12
.