# Function core::arch::x86_64::_mm512_maskz_cvt_roundpd_epi64

source ·

    pub unsafe fn _mm512_maskz_cvt_roundpd_epi64(
        k: __mmask8,
        a: __m512d,
        const ROUNDING: i32,
    ) -> __m512i

🔬This is a nightly-only experimental API. (`stdarch_x86_avx512` #111137)
Available on (x86 or x86-64) and target feature `avx512dq` and x86-64 only.
Expand description

Convert packed double-precision (64-bit) floating-point elements in a to packed signed 64-bit integers, and store the results in dst using zeromask k (elements are zeroed out if the corresponding bit is not set). 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                       // use MXCSR.RC

Intel’s Documentation