Integrating RTL IP with OpenCL

[Altera_Forum]

I remember seeing in one of Altera's earlier presentations that, one could integrate an RTL IP into the OpenCL flow. I am unable to find any reference to that in the current documentation. Can someone point to where I can find more info about that feature. 

 Thanks!

[Altera_Forum]

anyone can comment on this? I'm also wondering if it is possible to integrate the existing IPs into OpenCL designs. Thanks.