RFR: 8241234: Unify monitor enter/exit runtime entries

[Tobias Hartmann]

Hi Yudi,

looks good to me.

Best regards,
Tobias

On 20.03.20 16:03, Yudi Zheng wrote:
> Hello,
> 
> Please review this patch that unifies the monitor enter/exit runtime entries used by C1, C2, and JVMCI.
> 
> https://bugs.openjdk.java.net/browse/JDK-8061553 added support for faster "slow" locking paths. 
> These paths are not currently used by JVMCI (or C1) leading to slower performance on programs 
> that have a lot of short lived locked sections (such as dacapo:h2). 
> 
> This patch creates helper methods based on C2’s monitor enter/exit entries, and shares with the C1, 
> JVMCI runtimes. It will prevent these runtimes from missing future updates.
> 
> https://bugs.openjdk.java.net/browse/JDK-8241234
> http://cr.openjdk.java.net/~yzheng/8241234/webrev.00/
> 
> Many thanks,
> Yudi
>