# Function _mm512_mask_cvt_roundepi64_pd

1.89.0 · Source

    pub fn _mm512_mask_cvt_roundepi64_pd(
        src: __m512d,
        k: __mmask8,
        a: __m512i,
        const ROUNDING: i32,
    ) -> __m512d

Available on (x86 or x86-64) and target feature `avx512dq` and x86 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 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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