1 /* { dg-require-effective-target vect_float } */
2 
3 #include <stdarg.h>
4 #include "tree-vect.h"
5 
6 #define N 16
7 #define DIFF 82
8 
9 float c[N][N], b[N][N], a[N];
10 
11 __attribute__ ((noinline)) int
main1()12 main1 ()
13 {
14   int i, j;
15   float diff;
16 
17   /* In inner loop vectorization -funsafe-math-optimizations is needed to
18      vectorize the summation. But in outer loop vectorization the order of
19      calculation doesn't change, therefore, there is no need in that flag.  */
20   for (i = 0; i < N; i++)
21     {
22       diff = 2;
23       for (j = 0; j < N; j++)
24         diff += (b[j][i] - c[j][i]);
25 
26       a[i] = diff;
27     }
28 
29   /* Check results:  */
30   for (i = 0; i < N; i++)
31     if (a[i] != DIFF)
32       abort ();
33 
34   return 0;
35 }
36 
main(void)37 int main (void)
38 {
39   int i, j;
40 
41   check_vect ();
42 
43   for (i = 0; i < N; i++)
44     for (j = 0; j < N; j++)
45       {
46         b[i][j] = i+j+5;
47         c[i][j] = i+j;
48       }
49 
50   main1 ();
51 
52   return 0;
53 }
54 
55 /* { dg-final { scan-tree-dump-times "OUTER LOOP VECTORIZED" 1 "vect" } } */
56