Index: i386.c
===================================================================
--- i386.c	(revision 193296)
+++ i386.c	(working copy)
@@ -4638,6 +4622,8 @@ ix86_function_ok_for_sibcall (tree decl, tree exp)
       if (!rtx_equal_p (a, b))
 	return false;
     }
+  else if (VOID_TYPE_P (TREE_TYPE (DECL_RESULT (cfun->decl))))
+    ;
   else if (!rtx_equal_p (a, b))
     return false;