1 /* { dg-do run } */
2 /* { dg-options "-mavx512f -O2" } */
3 /* { dg-require-effective-target avx512f } */
4 
5 #include "avx512f-check.h"
6 
7 #define SCALE 2
8 
9 static void
compute_scatterqps(__mmask8 m8,long long * idx,float * src,int scale,float * r)10 compute_scatterqps (__mmask8 m8, long long *idx,
11 		    float *src, int scale, float *r)
12 {
13   int i;
14 
15   for (i = 0; i < 8; i++)
16     {
17       if (m8 & (1 << i))
18 	*(float *) (((unsigned char *) r) + idx[i] * scale) = src[i];
19     }
20 }
21 
22 static void
avx512f_test(void)23 avx512f_test (void)
24 {
25   int i;
26   union256 src;
27   union512i_q idx;
28   float res[8] = { 0.0 };
29   float res_ref[8] = { 0.0 };
30   __mmask8 m8 = 0xC5;
31 
32   for (i = 0; i < 8; i++)
33     {
34       src.a[i] = 2.718281828459045 * (i + 1) * (i + 2);
35 
36       /* About to gather in reverse order,
37 	 divide by 2 to demonstrate scale */
38       idx.a[i] = (32 - (i + 1) * 4) >> 1;
39     }
40 
41   _mm512_mask_i64scatter_ps (res, m8, idx.x, src.x, SCALE);
42   compute_scatterqps (m8, idx.a, src.a, SCALE, res_ref);
43 
44   if (checkVf (res, res_ref, 8))
45     abort ();
46 
47   _mm512_i64scatter_ps (res, idx.x, src.x, SCALE);
48   compute_scatterqps (0xFF, idx.a, src.a, SCALE, res_ref);
49 
50   if (checkVf (res, res_ref, 8))
51     abort ();
52 }
53