RFR (M) 8152753: C1 intrinsics for CompareAndExchange (x86)

[Aleksey Shipilev]

On 04/07/2016 11:51 AM, Andrew Haley wrote:
> I'm very tempted to review this, but there is a rather odd thing:
> the bug does not explain the motivation for this change.

Not following you.

What motivation do you need apart from "...the rest of new Unsafe
methods that are not intrinsified by C1 are handled by Java fallbacks in
Unsafe.java. compareAndExchange cannot be emulated with existing APIs"?

Thanks,
-Aleksey


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