gcc/testsuite/gcc.dg/graphite/pr83359.c

   1 /* PR tree-optimization/83359 */
   2 /* { dg-do compile { target pthread } } */
   3 /* { dg-options "-O3 -floop-parallelize-all -ftree-parallelize-loops=2" } */
   4
   5 int a, b, c;
   6
   7 void
   8 foo (int x, int y)
   9 {
  10   int *d = &a;
  11   int *e = &x;
  12
  13   for (a = 0; a < 1; ++a)
  14     d = &x;
  15
  16   while (b < 10)
  17     {
  18       for (b = 0; b < 1; ++b)
  19         if (x == 0)
  20           while (x < 1)
  21             ++x;
  22         else
  23           while (x < 1)
  24             {
  25               d = &y;
  26               ++x;
  27             }
  28       ++b;
  29     }
  30
  31   for (;;)
  32     for (c = 0; c < 2; ++c)
  33       {
  34         if (*d != 0)
  35           a = *e;
  36
  37         e = &b;
  38         y = 0;
  39       }
  40 }