[llvm-dev] Work on DAG Isel for TableGen and compiler

[Paul C. Anagnostopoulos via llvm-dev]

Are you talking about the type checking done in CodeGenDAGPatterns.cpp? Is it easy to post an example?

At 11/18/2020 01:55 PM, Thomas Lively wrote:
>Hi Paul,
>
>I think this would be time well spent. At least in the WebAssembly backend, the vast majority of our ISel work is still done with DAG ISel. I know this is different from the performance work you have in mind, but one of my biggest pain points working on LLVM so far has been the poor error messages from the DAG ISel pattern type checker. If you could find time to improve those error messages, I would be extremely grateful.
>
>Thanks,
>
>Thomas