1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-optimized" } */
       3  
       4  extern void abort (void);
       5  
       6  unsigned int
       7  foo (unsigned int x, unsigned int y)
       8  {
       9    unsigned int z;
      10  
      11    if (x >= y)
      12      return 1;
      13  
      14    if (y == x)
      15      abort ();
      16  
      17    return 0;
      18  }
      19  
      20  /* { dg-final { scan-tree-dump-not "abort" "optimized" } } */