RFR: 8230486: G1BarrierSetAssembler::g1_write_barrier_post unnecessarily pushes/pops new_val [v2]

[Albert Mingkun Yang]

On Mon, 17 May 2021 20:36:03 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Removes the unnecessary push/pop instruction.
>> 
>> Test: hotspot_gc
>
> Albert Mingkun Yang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   aarch64

Thanks for the review.

-------------

PR: https://git.openjdk.java.net/jdk/pull/4063