RFR: 8221554: aarch64 cross-modifying code

[Alan Hayward]

On Tue, 13 Oct 2020 16:46:42 GMT, Patricio Chilano Mateo <pchilanomate at openjdk.org> wrote:

> Regarding the use of cross_modify_fence(), I filed a bug last week to remove some uneeded uses of them in common code
> (https://bugs.openjdk.java.net/browse/JDK-8254264). Just a heads up before I send the RFR since I see some reference to
> them in the added comments.

I'm going to assume your change is just a two line change (removing the cross_modify_fence's), and I'll test that on
top of my patches using the VerifyCrossModifyFence flag - I'll give it a run of everything, which can take a while.
Plus I'll manually look at the code to to make sure I'm happy.

I think it makes sense that your patch goes in first, then I can rebase and update code comments too. Let me know your
pull request once you've raised it.

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PR: https://git.openjdk.java.net/jdk/pull/428