_mm256_mask_slli_epi16
Classification
AVX-512, Shift, CPUID Test: AVX512BW
Header File
immintrin.h
Instruction
VPSLLW ymm {k}, ymm, imm8
Synopsis
 _mm256_mask_slli_epi16(__m256i src, __mmask16 k, __m256i a, unsigned int imm8);
Description
Shift packed 16-bit integers in "a" left by "imm8" while shifting in zeros, and store the results in "dst" using writemask "k" (elements are copied from "src" when the corresponding mask bit is not set).
Operation
FOR j := 0 to 15
	i := j*16
	IF k[j]
		IF imm8[7:0] > 15
			dst[i+15:i] := 0
		ELSE
			dst[i+15:i] := ZeroExtend16(a[i+15:i] << imm8[7:0])
		FI
	ELSE
		dst[i+15:i] := src[i+15:i]
	FI
ENDFOR
dst[MAX:256] := 0