RFR: 8329816: Add SLEEF version 3.6.1 [v2]

[Hamlin Li]

On Thu, 23 May 2024 10:40:26 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>>> So you'd need a different copy of sleef for each platform?
>> 
>> I think it's one or more.
>> 
>>> The files you have put in linux/native/libvectormath, what platform are they for? Should we not put them in a platform-specific subdirectory?
>> 
>> we could, but not necessary, as long as they have different suffixes, and normally that suffixes indicate what platform it's for.
>
> Okay, suffix works fine too. But the files currently in the patch is named e.g. `sleefinline_advsimd.h`, which does not indicate any platform at all. Is it a generic file, and the platform specific ones are still missing from this PR?

I think both `sleefinline_advsimd.h` and `sleefinline_sve.h` are specific for arm.
In the future, on riscv the corresponding file name will be `sleefinline_rvvm1.h`.

Only `misc.h` is a generic file shared among platforms.

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PR Review Comment: https://git.openjdk.org/jdk/pull/19185#discussion_r1611636701