_mm256_mask_cmpeq_epu8_mask
Classification
AVX-512, Compare, CPUID Test: AVX512BW
Header File
immintrin.h
Instruction
VPCMPUB k {k}, ymm, ymm
Synopsis
 _mm256_mask_cmpeq_epu8_mask(__mmask32 k1, __m256i a, __m256i b);
Description
Compare packed unsigned 8-bit integers in "a" and "b" for equality, and store the results in mask vector "k" using zeromask "k1" (elements are zeroed out when the corresponding mask bit is not set).
Operation
FOR j := 0 to 31
	i := j*8
	IF k1[j]
		k[j] := ( a[i+7:i] == b[i+7:i] ) ? 1 : 0
	ELSE
		k[j] := 0
	FI
ENDFOR
k[MAX:32] := 0