1  /* { dg-do compile } */
       2  /* { dg-options "-O2 -fdump-tree-dse1-details" } */
       3  
       4  void *foo (int *p)
       5  {
       6    void *q;
       7    /* We should be able to DSE this store (p may point to errno).  */
       8    *p = 0;
       9    q = __builtin_malloc (4);
      10    *p = 0;
      11    return q;
      12  }
      13  
      14  int j;
      15  void bar (int *i)
      16  {
      17    /* This store is dead as well.  */
      18    j = 1;
      19    *i = 0;
      20    j = 2;
      21  }
      22  
      23  /* { dg-final { scan-tree-dump-times "Deleted dead store" 2 "dse1" } } */