RFR: 8325467: Support methods with many arguments in C2 [v23]

[Daniel Lundén]

On Wed, 27 Aug 2025 09:08:09 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> Daniel Lundén has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Add clarifying comments at definitions of register mask sizes
>
>> For reference, here is now the changeset adding an IFG bailout: #26118
> 
> Since that is now integrated: do we need to make any changes to the patch here? I thought the goal was to use the bailouts instead of increasing `MaxNodeLimit`.
> 
> Because looking at the discussions above: we were worried that there could be compile-time regressions - even if quite rare. But they were in the range of 40s which is quite scary. Are these now gone?

@eme64 I have now addressed your comments (the renaming is in https://github.com/openjdk/jdk/pull/27215, as requested). Please have a look and let me know if I've missed something.

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PR Comment: https://git.openjdk.org/jdk/pull/20404#issuecomment-3279719061