RFR: 8260473: [vector] ZGC: VectorReshape test produces incorrect results with ZGC enabled [v3]

[Vladimir Ivanov]

On Thu, 28 Jan 2021 09:02:22 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

>> 王超 has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   rm trailing whitespace
>
> What about migrating it to `GraphKit::access_load_at` instead?

> @iwanowww GraphKit::access_load_at is for parse time only. C2OptAccess must be used here.

I see. That's unfortunate.

Actually, `PhaseVector::optimize_vector_boxes()` sets `C->inlining_incrementally() == true` and it enables the code to use `GraphKit` and, moreover,  perform late inlining of vector reboxing operations. But I haven't thought through all the implications yet.

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PR: https://git.openjdk.java.net/jdk/pull/2253