core::arch::x86

# Function _mm_maskz_add_round_sh

source

    pub unsafe fn _mm_maskz_add_round_sh(
        k: __mmask8,
        a: __m128h,
        b: __m128h,
        const ROUNDING: i32,
    ) -> __m128h

🔬This is a nightly-only experimental API. (`stdarch_x86_avx512_f16` #127213)
Available on (x86 or x86-64) and target feature `avx512fp16` and x86 only.
Expand description

Add the lower half-precision (16-bit) floating-point elements in a and b, store the result in the lower element of dst, and copy the upper 7 packed elements from a to the upper elements of dst using zeromask k (the element is zeroed out when mask bit 0 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

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