gcc/testsuite/gcc.dg/graphite/interchange-3.c

   1 /* { dg-require-effective-target size32plus } */
   2
   3 /* Formerly known as ltrans-3.c */
   4
   5 #define DEBUG 0
   6 #if DEBUG
   7 #include <stdio.h>
   8 #endif
   9
  10 double u[1782225];
  11
  12 static void __attribute__((noinline))
  13 foo (int N, int *res)
  14 {
  15   unsigned int i, j;
  16   double sum = 0;
  17   for (i = 0; i < N; i++)
  18     {
  19       for (j = 0; j < N; j++)
  20         {
  21           sum = sum + u[i + 1335 * j];
  22         }
  23     }
  24
  25   *res = sum + N + u[1336 * 2] + u[1336];
  26 }
  27
  28 int
  29 main (void)
  30 {
  31   int i, j, res;
  32
  33   for (i = 0; i < 1782225; i++)
  34     u[i] = 2;
  35
  36   foo (1335, &res);
  37
  38 #if DEBUG
  39   fprintf (stderr, "res = %d \n", res);
  40 #endif
  41
  42   return res != 3565789;
  43 }
  44
  45 /* { dg-final { scan-tree-dump-times "will be interchanged" 1 "graphite" } } */
  46 /* { dg-final { cleanup-tree-dump "graphite" } } */