1  /* { dg-do compile } */
       2  /* { dg-options "-O1 -fdump-tree-dom2" } */
       3    
       4  
       5  struct rtx_def;
       6  typedef struct rtx_def *rtx;
       7  struct rtvec_def;
       8  typedef struct rtvec_def *rtvec;
       9  union tree_node;
      10  typedef union tree_node *tree;
      11  typedef struct mem_attrs
      12  {
      13    long alias;
      14  }
      15  mem_attrs;
      16  union rtunion_def
      17  {
      18    mem_attrs *rtmem;
      19  };
      20  typedef union rtunion_def rtunion;
      21  struct rtx_def
      22  {
      23    int code;
      24    rtunion fld[1];
      25  };
      26  struct tree_decl
      27  {
      28    rtx rtl;
      29  };
      30  union tree_node
      31  {
      32    struct tree_decl decl;
      33  };
      34  int make_decl_rtl (tree, void *);
      35  long
      36  get_alias_set (t)
      37       tree t;
      38  {
      39    if (t->decl.rtl != (void *) 0)
      40      return (((t->decl.rtl->fld[1]).rtmem) ==
      41              0 ? 0
      42              : ((((t->decl.
      43                    rtl ? 0 : (make_decl_rtl (t, ((void *) 0)),
      44                               t->decl.rtl)))->fld[1]).rtmem)->alias);
      45  }
      46  
      47  /* The calls to make_decl_rtl should be eliminated.  */
      48  /* { dg-final { scan-tree-dump-not "make_decl_rtl \\(\\)" "dom2" } } */
      49      
      50  /* There should be two IF conditionals.  */
      51  /* { dg-final { scan-tree-dump-times "if " 2 "dom2"} } */
      52                                                                                  
      53  /* There should be one load of decl.rtl.  */
      54  /* { dg-final { scan-tree-dump-times "decl\\.rtl" 1 "dom2"} } */
      55    
      56  /* There should be two loads of rtmem.  */
      57  /* { dg-final { scan-tree-dump-times "rtmem" 2 "dom2"} } */
      58  
      59  /* There should be one load of alias.  */
      60  /* { dg-final { scan-tree-dump-times "->alias" 1 "dom2"} } */
      61