1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -ftree-tail-merge -fdump-tree-pre" } */
       3  
       4  struct S {
       5    int i;
       6  };
       7  
       8  extern struct S foo (void);
       9  extern int foo2 (void);
      10  
      11  struct S s;
      12  
      13  int bar (int c) {
      14    int r;
      15  
      16    if (c)
      17      {
      18        s = foo ();
      19        r = foo2 ();
      20      }
      21    else
      22      {
      23        s = foo ();
      24        r = foo2 ();
      25      }
      26  
      27    return r;
      28  }
      29  
      30  /* { dg-final { scan-tree-dump-times "foo \\(" 1 "pre"} } */
      31  /* { dg-final { scan-tree-dump-times "foo2 \\(" 1 "pre"} } */