RFR: JDK-8239081: Shenandoah: Consolidate C1 LRB and native barriers

[Roman Kennke]

Hi Aleksey,

>>>> https://bugs.openjdk.java.net/browse/JDK-8239081
>>>> Webrev:
>>>> http://cr.openjdk.java.net/~rkennke/JDK-8239081/webrev.00/
>>>
>>> Only some stylistic nits:
>>>
>>> *) I believe the convention is to name these boolean arguments "is_native"?
>>>
>>> *) C1ShenandoahLoadReferenceBarrierCodeGenClosure::_native should probably be const?
>>
>> Right, good points! Both fixed here:
>>
>> http://cr.openjdk.java.net/~rkennke/JDK-8239081/webrev.01/
> 
> I think variables and fields should be "is_native" too.
> 
> Here:
> 
>  216     bool native = ShenandoahBarrierSet::use_load_reference_barrier_native(decorators, type);
>  217     tmp = load_reference_barrier(gen, tmp, access.resolved_addr(), native);
> 
> ...and here:
> 
>  255 class C1ShenandoahLoadReferenceBarrierCodeGenClosure : public StubAssemblerCodeGenClosure {
>  256 private:
>  257   const bool _native;
> 
> ...and here:
> 
>   89 class ShenandoahLoadReferenceBarrierStub: public CodeStub {
>   ...
>   97   bool _native;
> 
> ...and probably somewhere else too?

Riiiiight.:

http://cr.openjdk.java.net/~rkennke/JDK-8239081/webrev.02/

(Note: where am I coming from? Java conventions for boolean properties
where field is $property, getter is is$Property(), setter is
set$Property().)

Better now?

Roman