Function no_std_compat::arch::x86_64::_mm512_fmaddsub_round_pd
source · pub unsafe fn _mm512_fmaddsub_round_pd<const ROUNDING: i32>(
a: __m512d,
b: __m512d,
c: __m512d,
) -> __m512d
🔬This is a nightly-only experimental API. (
stdarch_x86_avx512
)Available on x86-64 only.
Expand description
Multiply packed double-precision (64-bit) floating-point elements in a and b, alternatively add and subtract packed elements in c to/from the intermediate result, and store the results in dst.\
Rounding is done according to the rounding[3:0] 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 // use MXCSR.RC; see _MM_SET_ROUNDING_MODE