RFR: 8329331: Intrinsify Unsafe::setMemory [v2]

[David Holmes]

On Tue, 2 Apr 2024 02:16:07 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Scott Gibbons has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Use non-sse fill (old left in)
>
> This looks like it is still a Draft/work-in-progress. There is only code for x64 and it doesn't appear it will build on other platforms. Also there are still a bunch of `if 0` in the code that should not be there.

> @dholmes-ora Sorry for the dead code left in. It is gone now. Plus, this was only requested for x86, thus no implementation for other platforms.

Only requested by whom? The JBS issue says nothing about that.

I'm not even sure how this avoids the  `CheckIntrinsics` check for missing intrinsics ... I guess it must only look for some kind of declaration not an actual implementation.

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PR Comment: https://git.openjdk.org/jdk/pull/18555#issuecomment-2038941462