_mm256_maskz_permutexvar_ps
Classification
AVX-512, Miscellaneous, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VPERMPS ymm {z}, ymm, ymm
Synopsis
 _mm256_maskz_permutexvar_ps(__mmask8 k, __m256i idx, __m256 a);
Description
Shuffle single-precision (32-bit) floating-point elements in "a" across lanes using the corresponding index in "idx", 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*32
	id := idx[i+2:i]*32
	IF k[j]
		dst[i+31:i] := a[id+31:id]
	ELSE
		dst[i+31:i] := 0
	FI
ENDFOR
dst[MAX:256] := 0