tree-ssa-structalias.c (alias_get_name): Avoid creating extra unused identifiers if not dumping.

2006-06-15  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-structalias.c (alias_get_name): Avoid creating
	extra unused identifiers if not dumping.
	(create_variable_info_for): Likewise.

From-SVN: r114675

gcc/ChangeLog

+2006-06-15  Richard Guenther  <rguenther@suse.de>
+
+	* tree-ssa-structalias.c (alias_get_name): Avoid creating
+	extra unused identifiers if not dumping.
+	(create_variable_info_for): Likewise.
+
 2006-06-15  Zdenek Dvorak <dvorakz@suse.cz>
 
 	* tree-ssa-loop-niter.c (implies_nonnegative_p): New function.

gcc/tree-ssa-structalias.c

@@ -2167,6 +2167,9 @@ alias_get_name (tree decl)
     return res;
 
   res = "NULL";
+  if (!dump_file)
+    return res;
+
   if (TREE_CODE (decl) == SSA_NAME)
     {
       num_printed = asprintf (&temp, "%s_%u", 
@@ -3987,16 +3990,21 @@ create_variable_info_for (tree decl, const char *name)
 	   i--)
 	{
 	  varinfo_t newvi;
-	  const char *newname;
+	  const char *newname = "NULL";
 	  char *tempname;
 
 	  newindex = VEC_length (varinfo_t, varmap);
-	  if (fo->decl)
-	    asprintf (&tempname, "%s.%s", vi->name, alias_get_name (fo->decl));
-	  else
-	    asprintf (&tempname, "%s." HOST_WIDE_INT_PRINT_DEC, vi->name, fo->offset);
-	  newname = ggc_strdup (tempname);
-	  free (tempname);
+	  if (dump_file)
+	    {
+	      if (fo->decl)
+	        asprintf (&tempname, "%s.%s",
+			  vi->name, alias_get_name (fo->decl));
+	      else
+	        asprintf (&tempname, "%s." HOST_WIDE_INT_PRINT_DEC,
+			  vi->name, fo->offset);
+	      newname = ggc_strdup (tempname);
+	      free (tempname);
+	    }
 	  newvi = new_var_info (decl, newindex, newname, newindex);
 	  newvi->offset = fo->offset;
 	  newvi->size = TREE_INT_CST_LOW (fo->size);