On Jan 16, 2013, Jan Hubicka <hubicka@ucw.cz> wrote:

> For 2) the symtab_get_node test seems resonable to me.  It is what
> dwarf2out does, too.  We keep nodes for external vars that are
> refereed but we remove all optimized out nodes.

Since you agreed this was the right approach and richi said he didn't
care much, I went ahead and installed the patch I'd proposed at first.