llvm / llvm/circt

Ensure dialect dependencies are captured in ODS

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Description

In a Dialect definition in ODS, you can specify the [dependent dialects](https://github.com/llvm/llvm-project/blob/a623051dc3011fe6f41bddab4024fc213f60282b/mlir/include/mlir/IR/OpBase.td#L242-L245). Right now, we have only 1 dialect explicitly depending on another. Presumably, there are other dependencies which are not explicitly handled, and we should comb through the dialects and see what is missing. We should also find a way to test that the dependency is working.

A bit more information here: https://github.com/llvm/circt/pull/925#discussion_r615005019

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First steps

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Research direction

Start with the MLIR ODS Dialect definition and its dependent-dialects documentation, then review the discussion in PR 925. Comb through the CIRCT dialect definitions to identify dependencies that are not explicitly captured. Done means the missing dependencies are declared and a test demonstrates that dependency handling works.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
compilers
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
38/100

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