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## _mm_mask_move_ss

# Function _mm_mask_move_ss

1.89.0 (const: unstable) · Source

    pub fn _mm_mask_move_ss(
        src: __m128,
        k: __mmask8,
        a: __m128,
        b: __m128,
    ) -> __m128

Available on x86-64 and target feature `avx512f` only.
Expand description

Move the lower single-precision (32-bit) floating-point element from b to the lower element of dst using writemask k (the element is copied from src when mask bit 0 is not set), and copy the upper 3 packed elements from a to the upper elements of dst.

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