_mm512_maskz_sll_epi64
Classification
AVX-512, Shift, CPUID Test: AVX512F
Header File
Instruction
VPSLLQ zmm {z}, zmm, xmm
Synopsis
_mm512_maskz_sll_epi64(__mmask8 k, __m512i a, __m128i count);
Description
Shift packed 64-bit integers in "a" left by "count" while shifting in zeros, and store the results in "dst" using zeromask "k" (elements are zeroed out when the corresponding mask bit is not set).
Operation
FOR j := 0 to 7
i := j*64
IF k[j]
IF count[63:0] > 63
dst[i+63:i] := 0
ELSE
dst[i+63:i] := ZeroExtend64(a[i+63:i] << count[63:0])
FI
ELSE
dst[i+63:i] := 0
FI
ENDFOR
dst[MAX:512] := 0