_mm512_mask_i32gather_epi64
Classification
AVX-512, Load, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VPGATHERDQ zmm {k}, vm32y
Synopsis
 _mm512_mask_i32gather_epi64(__m512i src, __mmask8 k, __m256i vindex, void const* base_addr, int scale);
Description
Gather 64-bit integers from memory using 32-bit indices. 64-bit elements are loaded from addresses starting at "base_addr" and offset by each 32-bit element in "vindex" (each index is scaled by the factor in "scale"). Gathered elements are merged into "dst" using writemask "k" (elements are copied from "src" when the corresponding mask bit is not set). "scale" should be 1, 2, 4 or 8.
Operation
FOR j := 0 to 7
	i := j*64
	m := j*32
	IF k[j]
		addr := base_addr + SignExtend64(vindex[m+31:m]) * ZeroExtend64(scale) * 8
		dst[i+63:i] := MEM[addr+63:addr]
	ELSE
		dst[i+63:i] := src[i+63:i]
	FI
ENDFOR
dst[MAX:512] := 0