_mm512_maskz_compress_epi64
Classification
AVX-512, Swizzle, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VPCOMPRESSQ zmm {z}, zmm
Synopsis
 _mm512_maskz_compress_epi64(__mmask8 k, __m512i a);
Description
Contiguously store the active 64-bit integers in "a" (those with their respective bit set in zeromask "k") to "dst", and set the remaining elements to zero.
Operation
size := 64
m := 0
FOR j := 0 to 7
	i := j*64
	IF k[j]
		dst[m+size-1:m] := a[i+63:i]
		m := m + size
	FI
ENDFOR
dst[511:m] := 0
dst[MAX:512] := 0