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

[Hamlin Li]

On Tue, 5 Nov 2024 12:49:20 GMT, Robbin Ehn <rehn at openjdk.org> wrote:

> Ok, so the path is: 
> 1: Exprimental (should they be turn on by hwprobe?) 
> 2a: If hwprobe => Diagnostic 
> 2b: No hwprobe => Normal
> 

I agree.

> should they be turn on by hwprobe?

I suggest we keep it simple, i.e. keep it as it is now.

> Arguably hwprobe should only turn on diagnostic options then ?

Still think we'd better keep it simple.

And users can still turn on/off by themselves if they want.

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PR Comment: https://git.openjdk.org/jdk/pull/21885#issuecomment-2457108591