RFR: 8292919: Build failure due to UseJVMCICompiler was not declared when C2 is disabled after JDK-8292691

[Jie Fu]

On Thu, 25 Aug 2022 18:14:24 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Hi all,
>> 
>> Please review this trivial fix which fixes the build failure when C2 is disabled due to the definition of `UseJVMCICompiler` is missing.
>> 
>> Thanks.
>> Best regards,
>> Jie
>
> Looks fine.

Thanks @shipilev and @vnkozlov for the review.

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PR: https://git.openjdk.org/jdk/pull/10027