1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-vrp1" } */
       3  
       4  void bar (void);
       5  
       6  void
       7  foo (int a)
       8  {
       9    switch (a)
      10      {
      11      case 4:
      12        if (a >= 3)
      13          if (a <= 5)
      14            bar ();
      15      }
      16  }
      17  
      18  /* Both ifs should be optimized (and switch statement will be the only if
      19     in the function).  */
      20  /* { dg-final { scan-tree-dump-times "if \\\(" 1 "vrp1" } } */