Request for Reviews(M): 7092905: C2: Keep track of the number of dead nodes

[Roland Westrelin]

Hi Bharadwaj,

> I'd like to get a code review of the changes at http://cr.openjdk.java.net/~bharadwaj/7092905/webrev_01/

Shouldn't Compile::_dead_node_count be set to _dead_node_list.size() after/in a call to Compile::identify_useful_nodes()?

Roland.