RFR (S): CR 8004318/JEP 171 Fences intrinsics

[Kirk Pepperdine]

I just have one question, what is a fence?

Regards,
Kirk

On 2012-12-03, at 11:20 PM, Aleksey Shipilev <aleksey.shipilev at oracle.com> wrote:

> (submitting this on behalf of Doug Lea)
> 
> Hi,
> 
> Please see the preliminary webrev for changes associated with JEP 171
> aka Fences [1]. The webrev is here:
>  http://shipilev.net/pub/jdk/hotspot/fences/webrev-1/
> 
> Testing:
> - built and tested on Linux x86_64
> - java-concurrency-torture [2] fences tests [3] passes on Linux x86_64
> - looking through generated assembly for torture tests
> 
> Please review the code changes while this thing flies through JPRT and
> JEP is being "funded".
> 
> Thanks,
> Aleksey.
> 
> [1] http://openjdk.java.net/jeps/171
> [2] https://github.com/shipilev/java-concurrency-torture
> [3] java -jar concurrency-torture.jar -t ".*fences.*"