+/* { dg-do run } */
+/* { dg-options "-O2 -mavx512dq" } */
+/* { dg-require-effective-target avx512dq } */
+
+#define AVX512DQ
+#include "avx512f-helper.h"
+
+#define SIZE (AVX512F_LEN / 64)
+#include "avx512f-mask-type.h"
+
+void
+CALC (long long *src1, long long *src2, long long *dst)
+{
+ int i;
+
+ for (i = 0; i < SIZE; i++)
+ dst[i] = src1[i] * src2[i];
+}
+
+void
+TEST (void)
+{
+ UNION_TYPE (AVX512F_LEN, i_q) src1, src2, dst1, dst2;
+ long long dst_ref[SIZE];
+ int i;
+ MASK_TYPE mask = MASK_VALUE;
+
+ for (i = 0; i < SIZE; i++)
+ {
+ src1.a[i] = i + 50;
+ src2.a[i] = i + 100;
+ dst2.a[i] = DEFAULT_VALUE;
+ }
+
+ dst1.x = INTRINSIC (_mullox_epi64) (src1.x, src2.x);
+ dst2.x = INTRINSIC (_mask_mullox_epi64) (dst2.x, mask, src1.x, src2.x);
+ CALC (src1.a, src2.a, dst_ref);
+
+ if (UNION_CHECK (AVX512F_LEN, i_q) (dst1, dst_ref))
+ abort ();
+
+ MASK_MERGE (i_q) (dst_ref, mask, SIZE);
+ if (UNION_CHECK (AVX512F_LEN, i_q) (dst2, dst_ref))
+ abort ();
+}