RFR: 8253525: Implement getInstanceSize/sizeOf intrinsics [v5]

[Aleksey Shipilev]

On Wed, 21 Oct 2020 17:33:27 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> Aleksey Shipilev has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:
>> 
>>  - The new intrinsic-related test
>>  - Revert the change to test
>>  - Merge branch 'master' into JDK-8253525-sizeof-intrinsics
>>  - Add new intrinsics to toBeInvestigated list in CheckGraalIntrinsics.java
>>  - 8253525: Implement getInstanceSize/sizeOf intrinsics
>
> Good.

Thanks for review, @kvn! I would also like a review from someone from serviceability.

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PR: https://git.openjdk.java.net/jdk/pull/650