RFR: Purge some G1-related cruft in C2

[Aleksey Shipilev]

On 09/11/2018 11:11 PM, Roman Kennke wrote:
> Am 11.09.2018 um 22:25 schrieb Aleksey Shipilev:
>> On 09/11/2018 10:13 PM, Roman Kennke wrote:
>>> This gets rid of Node::is_g1_marking_load() and Node::is_g1_marking_if()
>>> .. some fairly obvious leftovers from GC-interface-ification, and fixed
>>> related call-sites. This is closer to upstream and arguably/hopefully
>>> more correct.
>>>
>>> http://cr.openjdk.java.net/~rkennke/purge-c2-cruft/webrev.00/
>>
>> *) The change to is_shenandoah_marking_load in ShenandoahWriteBarrierNode::fix_ctrl looks like a
>> bugfix, please split it out in a separate changeset, so we are sure it is backported even if other
>> cleanups are not?
>>
>> Otherwise looks good.
> 
> Right. RFR'ed in another thread.
> 
> http://cr.openjdk.java.net/~rkennke/purge-c2-cruft/webrev.01/

Looks good.

-Aleksey