RFR: 8378470: Add future Intel family number

[David Holmes]

On Tue, 24 Feb 2026 18:41:33 GMT, Volodymyr Paprotski <vpaprotski at openjdk.org> wrote:

>> Okay I guess I am just somewhat surprised that support for family 19 was added, somewhat quietly, under JDK-8351994 in May last year.
>> 
>> Also from what I have read there is speculation that 19 will be used for the server family while 18 may be used for desktop and mobile! I wonder if we may have to be more explicit about what we mean by "server" in this context and rename it?
>
>> The "future" processor has a lower number??
> 
> Annoyingly so, yeah..
> 
>> [...] may be used for desktop and mobile! [...]
> 
> The name choice.. probably should be revisited. I am struggling for a good alternative though. `is_new_intel_family` would had been good, if 6 was not included.. Maybe just `is_intel_family`? Looking through the callsites.. its only ever called from from `vm_version_x86.cpp` (once from `vm_version_x86.h`) and for the most parts makes sense. I think. 
> 
> I can go and rename it? Or other name suggestion?
> 
> (There is also `is_P6`, but thats another can of worms, that rather not open here.. overlaps, but not the same..)

I don't have a suggestion on the name as I don't know exactly what property it is trying to capture. But it probably should not have a name that conflicts with how Intel might describe a family of processors.

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PR Review Comment: https://git.openjdk.org/jdk/pull/29852#discussion_r2850482301