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## _mm_alignr_epi64

# Function _mm_alignr_epi64

1.89.0 (const: unstable) · Source

    pub fn _mm_alignr_epi64(a: __m128i, b: __m128i, const IMM8: i32) -> __m128i

Available on x86-64 and target feature `avx512f` and target feature `avx512vl` only.
Expand description

Concatenate a and b into a 32-byte immediate result, shift the result right by imm8 64-bit elements, and store the low 16 bytes (2 elements) in dst.

Only lowest bit is used from the mask (shift at maximum by 8 bytes)!

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