RFR: Handle checkcast arraycopy correctly in barriers. Make arraycopy+barriers a single loop.

[Aleksey Shipilev]

On 02/27/2018 02:18 PM, Roman Kennke wrote:
> Differential (against your changes):
> http://cr.openjdk.java.net/~rkennke/arraycopy-loop/webrev.01.diff/
> Full (incl. your changes plus my additional test+fixes):
> http://cr.openjdk.java.net/~rkennke/arraycopy-loop/webrev.01/
> 
> Good now?

Yup.

Is this backportable to sh/jdk10? I.e. is the bug present in sh/jdk10 too?

-Aleksey