RFR: 8353217: Build libsleef on macos-aarch64 [v3]

[Erik Joelsson]

On Tue, 1 Apr 2025 22:45:09 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

>> Build and use SLEEF library as a backend implementation for Vector API trigonometric functions on macosx-aarch64 platform.
>> 
>> It improves raw throughput and eliminates GC overhead of non-intrinsified Vector API operation.
>> 
>> PR includes build changes and libsleef sources relocation from `src/jdk.incubator.vector/linux/native/` to `src/jdk.incubator.vector/share/native/`.
>> 
>> Once libsleef library is present, existing code in `stubGenerator_aarch64.cpp` successfully links at JVM startup. 
>> 
>> Testing: hs-tier1 - hs-tier4, microbenchmarks
>
> Vladimir Ivanov has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Adjust README.md

Marked as reviewed by erikj (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/24306#pullrequestreview-2734208521