Function core::arch::x86_64::_mm_sllv_epi64

pub unsafe fn _mm_sllv_epi64(a: __m128i, count: __m128i) -> __m128i

This is supported on x86-64 and target feature avx2 only.

Shift packed 64-bit integers in a left by the amount specified by the corresponding element in count while shifting in zeros, and return the result.

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