Remove runtime storeval barrier

[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.
  }

-Aleksey