RFR(M): 7197327: 40% regression on 8 b41 comp 8 b40 on specjvm2008.mpegaudio on oob

[Roland Westrelin]

Hi Vladimir,

Here is a new webrev that includes your suggestions:

http://cr.openjdk.java.net/~roland/7197327/webrev.02/

I wasn't sure the best way to do this:

> We need more info if graph is broken. Could you dump_bad_graph() here:
> +  assert(is_dominator(ctl, earliest) || is_dominator(earliest, ctl), "broken graph?");

Can you check if it's ok?

Thanks,
Roland.