RFR: 8186670: Implement _onSpinWait() intrinsic for AArch64 [v8]

Wed Sep 29 12:35:38 UTC 2021

On Wed, 29 Sep 2021 02:12:31 GMT, Nick Gasson <ngasson at openjdk.org> wrote:

>> Done.
>
> The [IR test framework](https://github.com/openjdk/jdk/blob/master/test/hotspot/jtreg/compiler/lib/ir_framework/README.md) can parse the C2 opto assembly output, and also control compilation level and flags through method annotations. I'm not sure if we could use that to check the C1 output though. Maybe @chhagedorn has some ideas?

@nick-arm Thank you for the link.

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PR: https://git.openjdk.java.net/jdk/pull/5562