Parse custom attribute in python bindings

MLIR
1

Hi all,
I defined a custom attribute, and use default table-gened printer and parser. And I built the python bindings, and also expose the CAPI of the custom attribute. If I load the whole mlir file and parse it to python module, the custom attribute can be correctly printed.

However, if I build the custom attribute in python and use python print to print it. an error occurs say that

“dialect has no registered attribute printing hook”

why is this happening?

2

This looks quite surprising: have you built MLIR with assertions enabled?

3

This looks quite surprising: have you built MLIR with assertions enabled?

@mehdi_amini Thanks for the reply. yes, I built mlir with -DLLVM_ENABLE_ASSERTIONS=ON.

4

Is this for a custom attribute added to an upstream dialect or to your own dialect in a repo that builds outside of LLVM/MLIR?

5

@bondhugula Thank you for answering! It is in my own dialect.