Intrinsic methods and time to safepoint

[Florian Weimer]

* Roland Westrelin:

> 2) would seem much easier to implement and would work for both c1 and c2
> (if some of these intrinsics end up implemented by c1).

I think this has been done for some critical native JNI functions in the
past (the CRC code?).

Thanks,
Florian