[lilliput-jdk17u:lilliput] RFR: 8308107: [Lilliput/JDK17] Cherry-pick: 8291555: Implement alternative fast-locking scheme [v3]

[Aleksey Shipilev]

On Wed, 17 May 2023 16:40:04 GMT, Roman Kennke <rkennke at openjdk.org> wrote:

>> This brings "8291555: Implement alternative fast-locking scheme" into lilliput/jdk17. Lots of small improvements, most importantly the fixed-size lock-stack, plus tons of testing and reviews that went into the upstream change that went into JDK21.
>> 
>> Testing:
>>  - [x] tier1 (x86, x86_64, aarch64)
>>  - [x] tier2 (x86, x86_64, aarch64)
>
> Roman Kennke has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Don't restrict Klass prototype headers to Lilliput, b/c biased-locking

Also cross-compiled builds are failing -- I think some point to the actual problems.

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PR Comment: https://git.openjdk.org/lilliput-jdk17u/pull/19#issuecomment-1557050438