RFR: JDK-8298138: Shenandoah: HdrSeq asserts "sub-bucket index (512) overflow for value ( 1.00)" [v3]

[Roman Kennke]

On Thu, 8 Dec 2022 09:13:40 GMT, Y. Srinivas Ramakrishna <ysr at openjdk.org> wrote:

>> JBS link: https://bugs.openjdk.org/browse/JDK-8298138
>> - Fixed a boundary condition that was triggering an assert.
>> - Added a simple-minded gtest for HdrSeq, which allows one to exercise the asserting code in a debug build.
>> - Tested with: `CONF=slowdebug make run-test TEST="gtest:BasicShenandoahNumberSeqTest"`
>
> Y. Srinivas Ramakrishna 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:
> 
>  - Merge branch 'master' into shen_numberseq
>  - - Copyright dates etc.
>    - include reorder to alphabetic; don't use/include std:: namespace.
>  - Merge branch 'master' into shen_numberseq
>  - A simple-minded test of HdrSeq which also exercises the problematic
>    code.
>  - Fix a boundary condition issue w/HdrSeq

Looks good, thank you!

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Marked as reviewed by rkennke (Reviewer).

PR: https://git.openjdk.org/jdk/pull/11524