[jdk8u-dev] RFR: 8072422: Cleanup: Remove some unused flags/code in loop optimizations [v2]

[Severin Gehwolf]

On Fri, 25 Mar 2022 07:17:26 GMT, Yi Yang <yyang at openjdk.org> wrote:

>> We encountered this problem in downstream JDK. This is a backport of JDK-8283672, which simply removes several diagnostic flags, build passed. There is a related fix https://bugs.openjdk.java.net/browse/JDK-8159715, I would backport it after the current fix merged.
>> 
>> Original changeset: http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/a1e41855499b
>> 
>> Please help review it.
>> 
>> Thanks.
>
> Yi Yang has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:
> 
>   8072422: Cleanup: Remove some unused flags/code in loop optimizations

@kelthuzadx Skara tooling doesn't recognize this as a backport. Please use pull request title `Backport <sha-of-original-commit>` which should then let the bots do it's thing and figure out it's a backport and change the title back to the right bug description.

With that said, what are you trying to do? Looking at both bugs it sounds like if we don't introduce [JDK-8072422](https://bugs.openjdk.java.net/browse/JDK-8072422), then [JDK-8159715](https://bugs.openjdk.java.net/browse/JDK-8159715) won't be an issue? If you are seeing an issue, without it I strongly encourage you to bring in the fix *without* the cleanup patch.

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PR: https://git.openjdk.java.net/jdk8u-dev/pull/22