RFR: 8373524: C2: no reachable node should have no use [v3]

[Roland Westrelin]

On Wed, 17 Dec 2025 08:38:25 GMT, Christian Hagedorn <chagedorn at openjdk.org> wrote:

>> Roland Westrelin has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   review
>
> Otherwise, looks good!

@chhagedorn @mhaessig thanks for the reviews and testing.

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PR Comment: https://git.openjdk.org/jdk/pull/28841#issuecomment-3670884726