Remove runtime storeval barrier

[Roman Kennke]

Am 19.03.2018 um 11:59 schrieb Aleksey Shipilev:
> On 03/19/2018 11:55 AM, Roman Kennke wrote:
>> The storeval_barrier() in BarrierSet is no longer used. It's all covered
>> by the Access API now. Let's remove the API. I'll keep the
>> ShenandoahBarrierSet part for internal use.
>>
>> diff --git a/src/hotspot/share/gc/shared/barrierSet.hpp
>> b/src/hotspot/share/gc/shared/barrierSet.hpp
>> --- a/src/hotspot/share/gc/shared/barrierSet.hpp
>> +++ b/src/hotspot/share/gc/shared/barrierSet.hpp
>> @@ -137,9 +137,6 @@
>>    virtual oop write_barrier(oop src) {
>>      return src;
>>    }
>> -  virtual oop storeval_barrier(oop src) {
>> -    return src;
>> -  }
>>
>>    virtual void keep_alive_barrier(oop obj) {
>>      // Default impl does nothing.
>>
>>
>> Ok?
> 
> OK!
> 
> What about this?
> 
>   virtual void interpreter_storeval_barrier(MacroAssembler* masm, Register dst, Register tmp) {
>     // Default implementation does nothing.
>   }
> 

This needs to wait for CodeGen part of the BarrierSet API.

Roman