[8u-dev] backport RFR: 6869327: Add new C2 flag to keep safepoints in counted loops

[Vladimir Kozlov]

You 8u changes looks fine but they introduced bug in jdk9:

https://bugs.openjdk.java.net/browse/JDK-8144935

You need to backport 8144935 fix too as separate changes.

Regards,
Vladimir

On 12/8/15 6:04 AM, Andreas Eriksson wrote:
> Hi,
>
> Please review this backport of JDK-6869327: Add new C2 flag to keep
> safepoints in counted loops.
> The only change in this backport is to the test, where the testlibrary
> imports needed to be changed, and I also removed the @module tag.
>
> JDK 9 review:
> http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2015-November/020110.html
>
>
> Webrev for changes between 9 and 8:
> http://cr.openjdk.java.net/~aeriksso/6869327/webrev.9_to_8/
>
> Full 8u webrev:
> http://cr.openjdk.java.net/~aeriksso/6869327/webrev.jdk8u/
>
> Bug: 6869327: Add new C2 flag to keep safepoints in counted loops.
> https://bugs.openjdk.java.net/browse/JDK-6869327
>
> Thanks,
> Andreas