gcc-4.9/gcc/testsuite/gcc.c-torture/execute/20000605-2.c


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struct F { int i; };

void f1(struct F *x, struct F *y)
{
  int timeout = 0;
  for (; ((const struct F*)x)->i < y->i ; x->i++)
    if (++timeout > 5)
      abort ();
}

main()
{
  struct F x, y;
  x.i = 0;
  y.i = 1;
  f1 (&x, &y);
  exit (0);
}