RFR (M): 8233306: Sort members in G1's HeapRegion after removal of Space dependency

[Thomas Schatzl]

Hi Stefan,

On 13.11.19 10:17, Stefan Johansson wrote:
> Hi Thomas,
> 
> On 2019-10-31 14:47, Thomas Schatzl wrote:
>> Hi all,
>>
>>   after the change to HeapRegion in JDK-8233306 the declaration fo the 
>> HeapRegion class is a bit messed up (merging G1ContiguousSpace, adding 
>> a few members needed from ContiguousSpace).
>>
>> This change tries to fix this as much as possible by shuffling around 
>> stuff (i.e. grouping allocation related methods, evacuation related 
>> methods, some helper pointers in HeapRegion, etc).
>>
>> Depends on JDK-8189737 also out for review.
>>
>> CR:
>> https://bugs.openjdk.java.net/browse/JDK-8233306
>> Webrev:
>> http://cr.openjdk.java.net/~tschatzl/8233306/webrev/
> Looks good,
> Stefan
> 

   thanks for your review.

Fyi, there has been one merge issue with latest NUMA changes: in 
heapRegion.cpp, in the initializer list of HeapRegion::HeapRegion, NUMA 
added a _node_index member at the end. This caused the merge logic to 
bail out because the context of the source hunk and the current code did 
not exactly match.

I updated the webrev.

Thanks,
   Thomas