RFR: 8300258: C2: vectorization fails on simple ByteBuffer loop [v2]

Thu Mar 2 08:49:16 UTC 2023

On Thu, 2 Mar 2023 08:29:47 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

> But maybe this is expected, and just a bad use of `Unsafe`. Probably we want this to vectorize, for the extra performance, and people who use `Unsafe` just have to be careful not to do such strange things.

Yes, I would say that qualifies as bad use of `Unsafe` and we can't support everything that's possible with it.

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PR: https://git.openjdk.org/jdk/pull/12440