core::arch::x86_64

Function _mm_mask_roundscale_ps

pub unsafe fn _mm_mask_roundscale_ps(
    src: __m128,
    k: __mmask8,
    a: __m128,
    const IMM8: i32,
) -> __m128

🔬This is a nightly-only experimental API. (stdarch_x86_avx512 #111137)

Available on (x86 or x86-64) and target feature avx512f,avx512vl and x86-64 only.

Expand description

Round packed single-precision (32-bit) floating-point elements in a to the number of fraction bits specified by imm8, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).
Rounding is done according to the imm8[2:0] parameter, which can be one of:\

_MM_FROUND_TO_NEAREST_INT : round to nearest
_MM_FROUND_TO_NEG_INF : round down
_MM_FROUND_TO_POS_INF : round up
_MM_FROUND_TO_ZERO : truncate
_MM_FROUND_CUR_DIRECTION : use MXCSR.RC - see _MM_SET_ROUNDING_MODE

Intel’s documentation

Function _mm_mask_roundscale_psCopy item path

Function _mm_mask_roundscale_ps