Function `_mm512_mask_cvt_roundepi64_pd`

#[target_feature(enable = "avx512dq")]
pub fn _mm512_mask_cvt_roundepi64_pd(src: __m512d, k: __mmask8, a: __m512i, ROUNDING: i32) -> __m512d

Convert packed signed 64-bit integers in a to packed double-precision (64-bit) floating-point elements, and store the results in dst using writemask k (elements are copied from src 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 - see _MM_SET_ROUNDING_MODE

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