RFR(M): 8181211: C2: Use profiling data to optimize on/off heap unsafe accesses

[Vladimir Kozlov]

Hi Roland,

Testing passed. Please, send changeset.

Thanks,
Vladimir

On 6/7/17 12:50 AM, Roland Westrelin wrote:
>
> Here is a new webrev with the vmStructs fix and without the ResourceMark
> change:
>
> http://cr.openjdk.java.net/~roland/8181211/webrev.01/
>
> Roland.
>