gcc/testsuite/gcc.dg/autopar/pr68460.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -ftree-parallelize-loops=2 -ftree-vectorize -fno-tree-ch -fno-tree-dominator-opts" } */
   3
   4 void abort (void);
   5
   6 int d[1024], e[1024];
   7
   8 int
   9 foo (void)
  10 {
  11   int s = 0;
  12   int i;
  13
  14   for (i = 0; i < 1024; i++)
  15     s += d[i] - e[i];
  16
  17   return s;
  18 }
  19
  20 int
  21 main ()
  22 {
  23   int i;
  24
  25   for (i = 0; i < 1024; i++)
  26     {
  27       d[i] = i * 2;
  28       e[i] = i;
  29     }
  30
  31   if (foo () != 1023 * 1024 / 2)
  32     abort ();
  33
  34   return 0;
  35 }