RFR: 8163589: Add back intrinsic methods for event based tracing (again)

[Robbin Ehn]

Hi all,

C1 in 32-bit actually don't support shift operation which was added in v3 of this series.

We hit this assert in 32-bit:
#  Internal Error (/home/rehn/source/jdk/8163589/hotspot/src/cpu/x86/vm/c1_LIRAssembler_x86.cpp:2917), pid=22445, tid=22493
#  Error: Unimplemented()

So we will just live without this intrinsic in C1 32-bit.

Also added specific test for intrinsic and 'event based testing', see bug (https://bugs.openjdk.java.net/browse/JDK-8163589).

I really hope I haven't missed anything else!

Incr:
http://cr.openjdk.java.net/~rehn/8163589/hotspot.03-04/webrev/

Full:
http://cr.openjdk.java.net/~rehn/8163589/hotspot.04/webrev/

Thanks!

/Robbin

On 08/10/2016 04:05 PM, Robbin Ehn wrote:
> Hi all,
>
> In 8 we had this intrinsic, I'm adding it back
> Used for event based tracing.
>
> Webrev: http://cr.openjdk.java.net/~rehn/8163589/hotspot.01/webrev/
> Bug: https://bugs.openjdk.java.net/browse/JDK-8163589
>
> Thanks!
>
> /Robbin