RFR: 8322694: C1: Handle Constant and IfOp in NullCheckEliminator [v3]

[Denghui Dong]

On Fri, 9 Feb 2024 01:42:42 GMT, Dean Long <dlong at openjdk.org> wrote:

>> Denghui Dong has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   should visit IfOp directly
>
> Marked as reviewed by dlong (Reviewer).

@dean-long Thanks for the review.

@TobiHartmann I updated the patch after your approval. Would you mind reviewing it again?

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PR Comment: https://git.openjdk.org/jdk/pull/17191#issuecomment-1936950439