PATCH: remove more if (0) code

[Ben Elliston]

Found a few more instances of dead code, after grepping.
Okay for mainline?

Ben

2008-03-31  Ben Elliston  <bje@au.ibm.com>

        * expmed.c (extract_split_bit_field): Remove if (0) code.
        * tree-ssa-structalias.c (do_sd_constraint): Likewise.
        (do_ds_constraint): Likewise.

Index: expmed.c
===================================================================
--- expmed.c    (revision 133745)
+++ expmed.c    (working copy)
@@ -2002,16 +2002,7 @@ extract_split_bit_field (rtx op0, unsign
   if (REG_P (op0) || GET_CODE (op0) == SUBREG)
     unit = BITS_PER_WORD;
   else
-    {
-      unit = MIN (MEM_ALIGN (op0), BITS_PER_WORD);
-      if (0 && bitsize / unit > 2)
-       {
-         rtx tmp = extract_force_align_mem_bit_field (op0, bitsize, bitpos,
-                                                      unsignedp);
-         if (tmp)
-           return tmp;
-       }
-    }
+    unit = MIN (MEM_ALIGN (op0), BITS_PER_WORD);
 
   while (bitsdone < bitsize)
     {
Index: tree-ssa-structalias.c
===================================================================
--- tree-ssa-structalias.c      (revision 133745)
+++ tree-ssa-structalias.c      (working copy)
@@ -1428,9 +1428,6 @@ do_sd_constraint (constraint_graph_t gra
          else if (add_graph_edge (graph, lhs, t))
            flag |= bitmap_ior_into (sol, get_varinfo (t)->solution);
        }
-      else if (0 && dump_file && !(get_varinfo (j)->is_special_var))
-       fprintf (dump_file, "Untypesafe usage in do_sd_constraint\n");
-
     }
 
 done:
@@ -1514,8 +1511,6 @@ do_ds_constraint (constraint_t c, bitmap
                }
            }
        }
-      else if (0 && dump_file && !(get_varinfo (j)->is_special_var))
-       fprintf (dump_file, "Untypesafe usage in do_ds_constraint\n");
     }
 }