RFR: Extend substitution guards to receive Architecture

[Thomas Wuerthinger]

Looks good, thanks! Doug, can you integrate the change?

- thomas

On 24 Nov 2014, at 16:08, Doug Simon <doug.simon at oracle.com> wrote:

> SubstitutionGuard.java:
> 
> +  * <li><code>Guard(Architecture)</code>
> +  * <li><code>Guard()</code> (an implicit constructor is OK as well)
> 
> We prefer to use {@code ...} instead of <code>...</code>
> 
> Otherwise, looks good to me.
> 
> -Doug
> 
> 
>> On 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
>