1  /* { dg-do compile } */
       2  /* { dg-options "-O -fdump-tree-optimized" } */
       3  
       4  int g(int,int);
       5  int h(int);
       6  int f(int t, int c)
       7  {
       8    int d = 0;
       9    int e = 0;
      10    if (t)
      11      {
      12        d = h(c);
      13        e = t;
      14      }
      15    else d = 0, e = 0;
      16    return g(e,d);
      17  }
      18  
      19  /* The value e should have been replaced with t and there should be only one PHI. */
      20  /* { dg-final { scan-tree-dump "g .t_\[0-9\]*.D.," "optimized" } } */
      21  /* { dg-final { scan-tree-dump-times "PHI" 1 "optimized" } } */