Yes, it is still supported from NI. We just have downloaded the latest version
based on LV2015 :
http://www.ni.com/download/labview-c-generator-2015/5527/en/
Now we test it against the former 2013 version in our ZBrain SDK.
We use it successfully in applications based on the Blackfin Processor,
have introduced multitasking, added ethernet, CAN and many other
IO-Functions that are used in deeply embedded.
Best regards
Marco