Function core::arch::x86_64::_mm_cvt_roundsd_si64
source · pub unsafe fn _mm_cvt_roundsd_si64(a: __m128d, const ROUNDING: i32) -> i64🔬This is a nightly-only experimental API. (
stdsimd #48556)Available on x86-64 and target feature
avx512f only.Expand description
Convert the lower double-precision (64-bit) floating-point element in a to a 64-bit integer, and store the result 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