RFR: 8343555: RISC-V: make UseZvfh diagnostic option

[Robbin Ehn]

On Mon, 4 Nov 2024 18:33:00 GMT, Hamlin Li <mli at openjdk.org> wrote:

> Hi,
> Can you help to review this simple patch?
> Previously this UseZvfh was changed from experimental to product because we have real hardware to verify the feature, but as pointed out by @RealFYang , this one should ber a diagnostic option, as we don't want to expose too many options to users.
> Thanks

Do it really makes sense to have instruction set selection diagnostic:
https://github.com/openjdk/jdk/blob/dafa2e55adb6b054c342d5e723e51087d771e6d6/src/hotspot/share/runtime/globals.hpp#L59

?

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PR Comment: https://git.openjdk.org/jdk/pull/21885#issuecomment-2456509266