RFR: 8329031: CPUID feature detection for Advanced Performance Extensions (Intel® APX) [v2]

[Jatin Bhateja]

On Thu, 6 Jun 2024 20:26:43 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> Jatin Bhateja has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Review comments resolutions.
>
> src/hotspot/cpu/x86/vm_version_x86.cpp line 1052:
> 
>> 1050: 
>> 1051:   // Currently APX support is only enabled for targets supporting AVX512VL feature.
>> 1052:   if (UseAPX && (!supports_apx_f() || !supports_avx512vl())) {
> 
> This code should be after UseAVX checks.

Its purposefully placed after modifications to CPU_* features flags if user explicitly sets UseAVX < 3.

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PR Review Comment: https://git.openjdk.org/jdk/pull/18562#discussion_r1630536165