RFR: Extend substitution guards to receive Architecture

[Gilles Duboscq]

Looks good. Thanks

-Gilles

On Thu, Nov 20, 2014 at 11:55 PM, Igor Veresov <igor.veresov at oracle.com> wrote:
> - adds ability for substitution guards to have a constructor that has Architecture as an argument
> - added extra flags enum to AMD64 to drive code emission features (currently contains UseCountLeadingZerosInstruction and UseCountTrailingZerosInstruction)
> - moved lzcnt/tzcnt nodes and substitutions to com.oracle.graal.replacements.amd64
>
> Webrev: http://cr.openjdk.java.net/~iveresov/subst-guard/webrev.00/
>
> Thanks!
> igor