symtab.c (symtab_nonoverwritable_alias): Copy VIRTUAL flag; remove static initializer.

	* symtab.c (symtab_nonoverwritable_alias): Copy VIRTUAL flag;
	remove static initializer.

From-SVN: r211358

gcc/ChangeLog

 2014-06-07  Jan Hubicka  <hubicka@ucw.cz>
 
+	* symtab.c (symtab_nonoverwritable_alias): Copy VIRTUAL flag;
+	remove static initializer.
+
+2014-06-07  Jan Hubicka  <hubicka@ucw.cz>
+
 	* varasm.c (use_blocks_for_decl_p): Check symbol table instead of alias
 	attribute.
 	(place_block_symbol): Recurse on aliases.

gcc/symtab.c

@@ -1154,7 +1154,9 @@ symtab_nonoverwritable_alias (symtab_node *node)
   TREE_PUBLIC (new_decl) = 0;
   DECL_COMDAT (new_decl) = 0;
   DECL_WEAK (new_decl) = 0;
-  DECL_VIRTUAL_P (new_decl) = 0;
+
+  /* Since the aliases can be added to vtables, keep DECL_VIRTUAL flag.  */
+  DECL_VIRTUAL_P (new_decl) = DECL_VIRTUAL_P (node->decl);
   if (TREE_CODE (new_decl) == FUNCTION_DECL)
     {
       DECL_STATIC_CONSTRUCTOR (new_decl) = 0;
@@ -1165,6 +1167,7 @@ symtab_nonoverwritable_alias (symtab_node *node)
   else
     {
       TREE_READONLY (new_decl) = TREE_READONLY (node->decl);
+      DECL_INITIAL (new_decl) = error_mark_node;
       new_node = varpool_create_variable_alias (new_decl, node->decl);
     }
   symtab_resolve_alias (new_node, node);