[8u] RFR and RFA: 8172850: Anti-dependency on membar causes crash in register allocator due to invalid instruction scheduling

[Vladimir Kozlov]

Looks good.

Thanks,
Vladimir

On 10/15/18 4:10 AM, Roland Westrelin wrote:
> 
> I'd like to backport 8172850 to 8u because I'd also like to backport a
> change that depends on it: 8209639. The change doesn't apply cleanly. So
> here is an updated webrev:
> 
> http://cr.openjdk.java.net/~roland/8172850-8u/webrev.00/
> 
> Initial change:
> 
> https://bugs.openjdk.java.net/browse/JDK-8172850
> http://hg.openjdk.java.net/jdk9/hs/hotspot/rev/6bf44f4e2a1e
> 
> Roland.
>