1 /* { dg-require-effective-target size32plus } */
2 
3 #define DEBUG 0
4 #if DEBUG
5 #include <stdio.h>
6 #endif
7 
8 #define NMAX 2000
9 
10 static int x1[NMAX], x2[NMAX], a[NMAX][NMAX], y1[NMAX], y2[NMAX];
11 
12 static int __attribute__((noinline))
mvt(long N)13 mvt (long N)
14 {
15 
16   int i,j;
17 
18   for (i = 0; i < N; i++)
19     for (j = 0; j < N; j++)
20       x1[i] = x1[i] + a[i][j] * y1[j];
21 
22   /* These two loops should be interchanged.  */
23   for (i = 0; i < N; i++)
24     for (j = 0; j < N; j++)
25       x2[i] = x2[i] + a[j][i] * y2[j];
26 
27   return x1[0] + x2[0];
28 }
29 
30 extern void abort ();
31 
32 int
main(void)33 main (void)
34 {
35   int i, j, res;
36 
37   for (i = 0; i < NMAX; i++)
38     for (j = 0; j < NMAX; j++)
39       a[i][j] = i + j;
40 
41   for (i = 0; i < NMAX; i++)
42     {
43       x1[i] = 0;
44       x2[i] = 2*i;
45       y1[i] = 100 - i;
46       y2[i] = i;
47     }
48 
49   res = mvt (NMAX);
50 
51 #if DEBUG
52   fprintf (stderr, "res = %d \n", res);
53 #endif
54 
55   if (res != 199900000)
56     abort ();
57 
58   return 0;
59 }
60 
61 /* { dg-final { scan-tree-dump "tiled by" "graphite" } } */
62