gcc/testsuite/gcc.dg/pr48739-1.c

   1 /* PR tree-optimization/48739 */
   2 /* { dg-do compile } */
   3 /* { dg-require-effective-target pthread } */
   4 /* { dg-options "-O1 -ftree-parallelize-loops=2 -fno-tree-dominator-opts" } */
   5
   6 extern int g;
   7 extern void bar (void);
   8
   9 int
  10 foo (int x)
  11 {
  12   int a, b, *c = (int *) 0;
  13   for (a = 0; a < 10; ++a)
  14     {
  15       bar ();
  16       for (b = 0; b < 5; ++b)
  17         {
  18           x = 0;
  19           c = &x;
  20           g = 1;
  21         }
  22     }
  23   *c = x;
  24   for (x = 0; x != 10; x++)
  25     ;
  26   return g;
  27 }