RFR(S): 8237776: Shenandoah: Wrong result with Lucene test

[Zhengyu Gu]

Looks good to me.

-Zhengyu

On 1/31/20 3:47 AM, Roland Westrelin wrote:
> 
> http://cr.openjdk.java.net/~roland/8237776/webrev.00/
> 
> xmm0 (an argument to a call) gets corrupted in the c2i adapter (when
> going from c1 code to the interpreter) at the
> ShenandoahRuntime::write_ref_field_pre_entry() runtime call. That call
> is in the c2i because of c2i_entry_barrier() and
> resolve_weak_handle(). The proposed fix saves all floating point
> argument registers.
> 
> Roland.
>