`RelayExprNode` represents the `ObjectPtr` in the AST. The same node might need to be referenced at different places across code base, and so the `RelayExpr` is a reference counted object that points to the `RelayExprNode`. You can think of `RelayExpr` as a type of shared_ptr to the underlying node. This allows us to pass and copy the reference as needed, without worrying about memory management.
The best place I found to understand TVM's Object system in depth was first at the [docs here](https://tvm.apache.org/docs/arch/runtime.html#tvm-object-and-compiler-stack) and then the comments at the [`Object.h` file here](https://github.com/apache/tvm/blob/9324a7c3ef17e70234f7fcd75a291e67bade037c/include/tvm/runtime/object.h#L84-L166) --- [Visit Topic](https://discuss.tvm.apache.org/t/questions-about-ir-expressions-relayexpr-relayexprnode/15416/3) to respond. You are receiving this because you enabled mailing list mode. To unsubscribe from these emails, [click here](https://discuss.tvm.apache.org/email/unsubscribe/9edef6f6a571d0658a1b6e2afdc1006d712f9b9c34fbd5358b93e0cfd8a7a9bd).
