RFR: 8339790: Support Intel APX setzucc instruction [v4]

[Vladimir Kozlov]

On Mon, 16 Sep 2024 20:45:45 GMT, Sandhya Viswanathan <sviswanathan at openjdk.org> wrote:

>> Jatin Bhateja has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Review comments resolution.
>
> src/hotspot/cpu/x86/macroAssembler_x86.cpp line 10426:
> 
>> 10424: 
>> 10425: void MacroAssembler::setcc(Assembler::Condition comparison, Register dst) {
>> 10426:   if (VM_Version::supports_apx_f()) {
> 
> We could check UseAPX here instead of VM_Version::supports_apx_f().

I think switching off a feature in `vm_version` file based on flags setting is correct.
So that in the rest of code we can simple check `VM_Version::supports_*()`.
Currently not all code follow this but it is preferable way.

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PR Review Comment: https://git.openjdk.org/jdk/pull/20920#discussion_r1761963930