1  /* This test was causing an ICE in DCE because we were allowing void *
       2     pointers to have a memory tag, which we were copying when doing copy
       3     propagation.  Since void * can never be de-referenced, its memory tag
       4     was never renamed.  */
       5  
       6  /* { dg-do compile } */
       7  /* { dg-options "-O -ftree-dominator-opts -std=gnu89" } */
       8  
       9  typedef __SIZE_TYPE__ size_t;
      10  typedef union tree_node *tree;
      11  struct operands_d
      12  {
      13    tree *def_op;
      14  };
      15  
      16  void
      17  gt_ggc_mx_operands_d (void *x_p)
      18  {
      19    struct operands_d *const x = (struct operands_d *) x_p;
      20    if ((*x).def_op != ((void *) 0))
      21      {
      22        size_t i0;
      23        do
      24  	{
      25  	  const void *const a__ = ((*x).def_op);
      26  	  if (a__ != ((void *) 0) && a__ != (void *) 1)
      27  	    ggc_set_mark (a__);
      28  	}
      29        while (0);
      30        for (i0 = 0; i0 < (size_t) (1); i0++)
      31  	{
      32  	  do
      33  	    {
      34  	      if ((void *) (*x).def_op[i0] != ((void *) 0))
      35  		gt_ggc_mx_lang_tree_node ((*x).def_op[i0]);
      36  	    }
      37  	  while (0);
      38  	}
      39      }
      40  }