RFR: 8352675: Support Intel AVX10 converged vector ISA feature detection [v19]

[Jatin Bhateja]

On Fri, 9 May 2025 22:23:41 GMT, Sandhya Viswanathan <sviswanathan at openjdk.org> wrote:

>> Jatin Bhateja has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 19 commits:
>> 
>>  - Sandhya's review comments resoultion
>>  - Merge branch 'master' of http://github.com/openjdk/jdk into JDK-8352675
>>  - Addressing Yudi's comments
>>  - Code re-factoring from Vladimir
>>  - Reveiw suggestions incorporated
>>  - Making _features_bitmap size configurable
>>  - cleanups & refactorings
>>  - build fixes for non-x86 targets
>>  - Review comments resolutions
>>  - Updating comment
>>  - ... and 9 more: https://git.openjdk.org/jdk/compare/411a63ea...f583a521
>
> src/hotspot/cpu/x86/vm_version_x86.cpp line 1052:
> 
>> 1050:   if (is_intel()) { // Intel cpus specific settings
>> 1051:     if (is_knights_family()) {
>> 1052:       _features.clear_feature(CPU_VZEROUPPER);
> 
> Should we be also clearing the CPU_AVX10_1 and CPU_AVX10_2 here?

I agree; it may help validate KNL on Diamond Rapids :-)

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PR Review Comment: https://git.openjdk.org/jdk/pull/24329#discussion_r2082628062