RFR: 8284198: Undo JDK-8261137: Optimization of Box nodes in uncommon_trap [v5]

Mon Apr 11 05:52:40 UTC 2022

On Sun, 10 Apr 2022 15:45:29 GMT, Wu Yan <wuyan at openjdk.org> wrote:

>> [JDK-8261137](https://bugs.openjdk.java.net/browse/JDK-8261137) introduced a regression and has been disabled by [JDK-8276112](https://bugs.openjdk.java.net/browse/JDK-8276112). Better to revert the changes of the optimization instead of letting the dead-code decay.
>> 
>> This reverts [JDK-8261137](https://bugs.openjdk.java.net/browse/JDK-8261137) and [JDK-8264940](https://bugs.openjdk.java.net/browse/JDK-8264940), my tier1 testing on linux-x86 passed.
>
> Wu Yan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   keep TestIdentityWithEliminateBoxInDebugInfo

Looks good.

-------------

Marked as reviewed by thartmann (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/8083