RFR: 8353686: Optimize Math.cbrt for x86 64 bit platforms [v4]

[Mohamed Issa]

On Thu, 29 May 2025 08:36:31 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

>> Mohamed Issa has updated the pull request incrementally with four additional commits since the last revision:
>> 
>>  - Remove comment mentioning invalid exception when NaN input is provided
>>  - Use rcx as base and r8 as index for address calculations in certain cbrt stub generator instructions
>>  - Remove unnecessary unpckhpd and unpcklpd definitions in macro-assembler header file
>>  - Remove unnecessary movapd definitions in macro-assembler header file
>
> Patch looks good to me,  some comment included.

@jatin-bhateja Please let me know if there's anything else to address.

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PR Comment: https://git.openjdk.org/jdk/pull/24470#issuecomment-2920726222