Hi MXNet Friends: Just FYI, there is an on-going discussion about removing NNVM related data structures in future releases.
https://discuss.tvm.apache.org/t/should-we-delete-nnvm/12330/3 For background, nnvm was the first generation IR that was maintained by TVM before the community moved to a newer generation. The community keeps it for a few more releases(v0.7 and v0.8). The immediate impact on mxnet is likely going to be minimal, as the current submodule points to a v0.7 version which contains the code. We would recommend the community to directly bring in a version of nnvm code to mxnet tree if there is a decision to use the data structure after v0.8 TQ
