Function core::arch::x86_64::_mm512_maskz_cvt_roundepi64_pd

source · 
pub unsafe fn _mm512_maskz_cvt_roundepi64_pd(
    k: __mmask8,
    a: __m512i,
    const ROUNDING: i32,
) -> __m512d
🔬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 signed 64-bit integers in a to packed double-precision (64-bit) floating-point elements, 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

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