[RFC] TensorIR: A schedulable IR for TVM

[crazyjackie1993]

@junrushao thank you for your reply, your explanation helps a lot. but I am a little confused about S-TIR & NS TIR.

@junrushao

With this proposal landed, There are two ways of lowering Relay:

• Relay => TE compute w/ schedule => S-TIR => NS-TIR
• Relay => S-TIR => NS-TIR

can I understand like this:

• TF/ONNX/PyTorch => Relay => (with or without TE) => S-TIR => schedule => S-TIR => NS-TIR => code Gen

I still have two father more question about S-TIR:

1. can S-TIR fully describe an op(e.g. conv), which can replace the TE’s work?
2. is there any interaction process between S-TIR & NS-TIR?

I am also concerned about if Tensor IR development was finished or is still in process? I am really interensted in this idea, so i’d also like to read some code to understand it better.