1  /* { dg-do compile } */
       2  /* { dg-options "-O1 -fdump-tree-dom2" } */
       3    
       4  extern void abort (void);
       5  
       6  union tree_node;
       7  typedef union tree_node *tree;
       8  enum tree_code
       9  {
      10    BIND_EXPR,
      11  };
      12  struct tree_common
      13  {
      14    enum tree_code code:8;
      15  };
      16  union tree_node
      17  {
      18    struct tree_common common;
      19  };
      20  tree
      21  voidify_wrapper_expr (tree wrapper)
      22  {
      23    switch (wrapper->common.code)
      24      {
      25      case BIND_EXPR:
      26        if (wrapper->common.code != BIND_EXPR)
      27          abort ();
      28      }
      29  }
      30  
      31  
      32  /* There should be no IF conditionals.  */
      33  /* { dg-final { scan-tree-dump-times "if " 0 "dom2"} } */