RFR: 8271925: ZGC: Arraycopy stub passes invalid oop to load barrier [v2]

Mon Aug 9 05:59:08 UTC 2021

On Fri, 6 Aug 2021 00:07:36 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> Z is 64 bit only.
>
> Okay. `SubLNode` should be used then to avoid confusion.
> By expending code I see that it is guarded by `(bt == T_OBJECT)` so `length` is indeed in `longs`. No issue here.

Thanks for the review, Vladimir. Yes, ZGC is 64-bit only and the code I'm fixing is applied to object arrays only. I've changed `SubXNode` to `SubLNode` to avoid confusion.

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PR: https://git.openjdk.java.net/jdk/pull/5014