Function _mm_mask_shldi_epi16

#[target_feature(enable = "avx512vbmi2", enable = "avx512vl")]
pub const fn _mm_mask_shldi_epi16(src: __m128i, k: __mmask8, a: __m128i, b: __m128i, IMM8: i32) -> __m128i

Concatenate packed 16-bit integers in a and b producing an intermediate 32-bit result. Shift the result left by imm8 bits, and store the upper 16-bits in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

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