RFR: 8369685: RISC-V: refactor code related to RVFeatureValue::enabled

[Robbin Ehn]

On Mon, 13 Oct 2025 13:02:50 GMT, Hamlin Li <mli at openjdk.org> wrote:

> Hi,
> Can you help to review this patch?
> @RealFYang 
> 
> Original discussion is here: https://github.com/openjdk/jdk/pull/27562#discussion_r2415984981.
> Although seems we can not remove it, but we can still remove some of the redundant check like `mvendorid.enabled()`.
> And also do some simple refactoring related to enable/disable/enabled and so on.
> 
> Thanks

src/hotspot/cpu/riscv/vm_version_riscv.cpp line 110:

> 108:   if (mvendorid.value() == RIVOS) {
> 109:     if (FLAG_IS_DEFAULT(UseConservativeFence)) {
> 110:       FLAG_SET_DEFAULT(UseConservativeFence, false);

I change UseConservativeFence default to false, but I forgot to remove this.
So you can just remove this part instead.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27771#discussion_r2431220709