RFR: 8330844: Add aliases for conditional jumps and additional instruction forms for x86 [v2]

[Scott Gibbons]

On Mon, 22 Apr 2024 20:47:52 GMT, Scott Gibbons <sgibbons at openjdk.org> wrote:

>> Adding infrastructure for JDK-8320448.  Aliasing conditional jump instructions; making arrays_equals accessible from stubs; adding some x86 instructions.
>
> Scott Gibbons has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Undo move of arrays_equals

OK.  arrays_equals changes reverted.

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PR Comment: https://git.openjdk.org/jdk/pull/18893#issuecomment-2071033103