On Mon, Jun 18, 2012 at 9:37 AM, Nilay Vaish <[email protected]> wrote:
> >> Even if we handle cc registers in a special manner, this patch or > something similar would be required to remove some of the dependencies. We > still read and write most of the CC registers, even if we do not need to. > With this patch, these reads and writes would be avoided. > > As far as I understand, special handling of the cc registers is aimed at > providing one physical register for several cc registers. It will remove > the register pressure, but not the artificial dependencies. I think you > have not gauged the need for the patch correctly. > I think it's premature to say for sure one way or the other. I can think of ways to handle cc renaming where you still need this patch, and other ways where you don't. Steve _______________________________________________ gem5-dev mailing list [email protected] http://m5sim.org/mailman/listinfo/gem5-dev
