Function boolean_enums::lstd::arch::x86::_mm256_srai_epi16

pub unsafe fn _mm256_srai_epi16(a: __m256i, imm8: i32) -> __m256i

This is supported on x86 and target feature avx2 only.

Shift packed 16-bit integers in a right by imm8 while shifting in sign bits.

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