Function core::arch::x86::_mm_fmadd_round_sch
source · pub unsafe fn _mm_fmadd_round_sch(
a: __m128h,
b: __m128h,
c: __m128h,
const ROUNDING: i32,
) -> __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
Multiply the lower complex numbers in a and b, accumulate to the lower complex number in c, and
store the result in the lower elements of dst. Each complex number is composed of two adjacent
half-precision (16-bit) floating-point elements, which defines the complex number complex = vec.fp16[0] + i * vec.fp16[1]
.
Rounding is done according to the rounding parameter, which can be one of:
(_MM_FROUND_TO_NEAREST_INT |_MM_FROUND_NO_EXC) // round to nearest, and suppress exceptions
(_MM_FROUND_TO_NEG_INF |_MM_FROUND_NO_EXC) // round down, and suppress exceptions
(_MM_FROUND_TO_POS_INF |_MM_FROUND_NO_EXC) // round up, and suppress exceptions
(_MM_FROUND_TO_ZERO |_MM_FROUND_NO_EXC) // truncate, and suppress exceptions
_MM_FROUND_CUR_DIRECTION