RFR: 8353686: Optimize Math.cbrt for x86 64 bit platforms [v6]

[David Holmes]

On Mon, 2 Jun 2025 03:49:42 GMT, Mohamed Issa <duke at openjdk.org> wrote:

> When you say "most of the non-x86 platforms", are you referring to the ones with processor types listed below?

Yes - 3 of the 5 non-x86 platforms.

> It looks like aarch64 and riscv don't take that route and would fall back to the default cbrt implementation.

I was wondering why Aarch64 didn't fail. I guess the other platforms may use this to detect new intrinsics being added.

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PR Comment: https://git.openjdk.org/jdk/pull/24470#issuecomment-2928722575