lto.c (globalize_cross_file_statics): When function has address taken, it needs to be public.

	* lto.c (globalize_cross_file_statics): When function has address taken,
	it needs to be public.
	* varpool.c (decide_is_variable_needed): Variable is always needed
	during ltrans.

From-SVN: r158609

gcc/ChangeLog

 2010-04-21  Jan Hubicka  <jh@suse.cz>
 
+	* varpool.c (decide_is_variable_needed): Variable is always needed
+	during ltrans.
+
+2010-04-21  Jan Hubicka  <jh@suse.cz>
+
 	* opts.c (decode_options): Enable pure-const pass for whopr.
 
 2010-04-21  Jan Hubicka  <jh@suse.cz>

gcc/lto/ChangeLog

+2010-04-21  Jan Hubicka  <jh@suse.cz>
+
+	* lto.c (globalize_cross_file_statics): When function has address taken,
+	it needs to be public.
+
 2010-04-20  Jan Hubicka  <jh@suse.cz>
 
 	* lto.c (lto_add_inline_clones): Do not track inlined_decls.

gcc/lto/lto.c

@@ -760,7 +760,8 @@ globalize_cross_file_statics (tree *tp, int *walk_subtrees ATTRIBUTE_UNUSED,
     }
   else if (TREE_CODE (t) == FUNCTION_DECL && !TREE_PUBLIC (t))
     {
-      if (!cgraph_node_in_set_p (cgraph_node (t), context->set))
+      if (!cgraph_node_in_set_p (cgraph_node (t), context->set)
+	  || cgraph_node (t)->address_taken)
 	{
 	  /* This file-scope static function is reachable from a set
 	     which does not contain the function DECL.  Make it global

gcc/varpool.c

@@ -230,6 +230,12 @@ varpool_reset_queue (void)
 bool
 decide_is_variable_needed (struct varpool_node *node, tree decl)
 {
+  /* We do not track variable references at all and thus have no idea if the
+     variable was referenced in some other partition or not.  
+     FIXME: We really need address taken edges in callgraph and varpool to
+     drive WPA and decide whether other partition might reference it or not.  */
+  if (flag_ltrans)
+    return true;
   /* If the user told us it is used, then it must be so.  */
   if ((node->externally_visible && !DECL_COMDAT (decl))
       || node->force_output)