_mm512_mask_reduce_min_epu32
Classification
KNC, Special Math Functions, CPUID Test: KNCNI
Header File
immintrin.h
Synopsis
 _mm512_mask_reduce_min_epu32(__mmask16 k, __m512i a);
Description
Reduce the packed unsigned 32-bit integers in "a" by maximum using mask "k". Returns the minimum of all active elements in "a".
Operation
DEFINE REDUCE_MIN(src, len) {
	IF len == 2
		RETURN (src[31:0] < src[63:32] ? src[31:0] : src[63:32])
	FI
	len := len / 2
	FOR j:= 0 to (len-1)
		i := j*32
		src[i+31:i] := (src[i+31:i] < src[i+32*len+31:i+32*len] ? src[i+31:i] : src[i+32*len+31:i+32*len])
	ENDFOR
	RETURN REDUCE_MIN(src[32*len-1:0], len)
}
tmp := a
FOR j := 0 to 16
	i := j*32
	IF k[j]
		tmp[i+31:i] := a[i+31:i]
	ELSE
		tmp[i+31:i] := 0xFFFFFFFF
	FI
ENDFOR
dst[31:0] := REDUCE_MIN(tmp, 16)