_mm512_mask_cmpunord_ps_mask
Classification
AVX-512, Compare, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VCMPPS k {k}, zmm, zmm, imm8
Synopsis
 _mm512_mask_cmpunord_ps_mask(__mmask16 k1, __m512 a, __m512 b);
Description
Compare packed single-precision (32-bit) floating-point elements in "a" and "b" to see if either is NaN, 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 15
	i := j*32
	IF k1[j]
		k[j] := ((a[i+31:i] == NaN) OR (b[i+31:i] == NaN)) ? 1 : 0
	ELSE 
		k[j] := 0
	FI
ENDFOR
k[MAX:16] := 0