1  /* { dg-do compile } */
       2  /* { dg-options "-Wuninitialized -O2" } */
       3  
       4  int g;
       5  void bar();
       6  void blah(int);
       7  
       8  int foo (int n, int m, int r)
       9  {
      10    int flag = 0;
      11    int v;
      12  
      13    if (n)
      14      {
      15        v = r;
      16        flag = 1;
      17      }
      18  
      19    if (m)
      20      g++;
      21    else 
      22      bar();
      23  
      24    if (r > 0)
      25       goto use;
      26    if (flag)
      27      {
      28  use:
      29        blah(v); /* { dg-warning "uninitialized" "real warning" } */
      30      }
      31  
      32    return 0;
      33  }