[lworld+vector] RFR: 8311610: [lworld+vector] Clean-up of vector allocation in class VectorSupport

[Jatin Bhateja]

On Fri, 7 Jul 2023 06:51:18 GMT, Xiaohong Gong <xgong at openjdk.org> wrote:

> Hi @jatin-bhateja, could you please take a look at this PR? This is a cleanup to the vector allocation code in `vectorSupport.cpp`, which could also fix the jtreg regressions. Thanks a lot!

Hi @XiaohongGong , 

We can sweep out explicit handling related to vector/mask/shuffle during deoptimization, only two additional thing which may be needed are as follows :-  
1/ Explicit larval flag setting on re-allocated vector payloads.
2/ Handling for non-flattened payloads under influence of InlineFieldMaxFlatSize.

Best Regards,
Jatin

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PR Comment: https://git.openjdk.org/valhalla/pull/882#issuecomment-1624983718