RFR: 8160821: VarHandle accesses are penalized when argument conversion is required [v4]

[Chen Liang]

On Wed, 3 Dec 2025 01:53:13 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

>> Chen Liang 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 eight additional commits since the last revision:
>> 
>>  - Rollback getAndAdd for now
>>  - Redundant change
>>  - Merge branch 'master' of https://github.com/openjdk/jdk into fix/vh-adapt-cache
>>  - Stage
>>  - Review tweaks
>>  - Tweak VH usage in some classes
>>  - Logical fallacy
>>  - 8160821
>
> test/micro/org/openjdk/bench/java/lang/invoke/VarHandleExact.java line 81:
> 
>> 79: 
>> 80:     @Benchmark
>> 81:     public void generic_returnDroppingInvocation() {
> 
> What about "all-generic" case (` { generic.getAndAdd(data, 42); }`)?

I can change the `generic_genericInvocation` to an all-generic case.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28585#discussion_r2583556794