RFR: Revert commented out Op_CompareAndSwapB/Op_CompareAndSwapS in aarch64.ad

[Aleksey Shipilev]

On 11/09/2018 11:35 AM, Roman Kennke wrote:
> Apparently I made a mistake and commented out Op_CompareAndSwapB and
> Op_CompareAndSwapS in aarch64.ad. Let's revert it to upstream state.
> 
> diff --git a/src/hotspot/cpu/aarch64/aarch64.ad
> b/src/hotspot/cpu/aarch64/aarch64.ad
> --- a/src/hotspot/cpu/aarch64/aarch64.ad
> +++ b/src/hotspot/cpu/aarch64/aarch64.ad
> @@ -1276,10 +1276,10 @@
>      case Op_CompareAndSwapL:
>      case Op_CompareAndSwapP:
>      case Op_CompareAndSwapN:
> +    case Op_CompareAndSwapB:
> +    case Op_CompareAndSwapS:
>      case Op_ShenandoahCompareAndSwapP:
>      case Op_ShenandoahCompareAndSwapN:
> - // case Op_CompareAndSwapB:
> - // case Op_CompareAndSwapS:
>      case Op_GetAndSetI:
>      case Op_GetAndSetL:
>      case Op_GetAndSetP:

Looks good.

This look sh/jdk-only, right?

-Aleksey