RFR: 8369258: C2: enable ReassociateInvariants for all loop types [v3]

[Roland Westrelin]

On Thu, 16 Oct 2025 06:46:41 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> Roland Westrelin has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   review
>
> test/hotspot/jtreg/compiler/loopopts/TestReassociateInvariants.java line 72:
> 
>> 70:     // removal of long counted loop. The long counted loop is
>> 71:     // transformed into a loop nest with an inner int counted
>> 72:     // loop. That one is empty and is removed.
> 
> Sounds like we should file an RFE for long counted loop removal, right?

https://bugs.openjdk.org/browse/JDK-8369976

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PR Review Comment: https://git.openjdk.org/jdk/pull/27666#discussion_r2434883237