_mm256_maskz_expand_ps
Classification
AVX-512, Miscellaneous, CPUID Test: AVX512F
Header File
Instruction
VEXPANDPS ymm {z}, ymm
Synopsis
_mm256_maskz_expand_ps(__mmask8 k, __m256 a);
Description
Load contiguous active single-precision (32-bit) floating-point elements from "a" (those with their respective bit set in mask "k"), and store the results in "dst" using zeromask "k" (elements are zeroed out when the corresponding mask bit is not set).
Operation
m := 0
FOR j := 0 to 7
i := j*32
IF k[j]
dst[i+31:i] := a[m+31:m]
m := m + 32
ELSE
dst[i+31:i] := 0
FI
ENDFOR
dst[MAX:256] := 0