llvm / llvm/circt

[HW] Move modules to being "HWModuleLike" instead of "FunctionLike"

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HW
Dominant language
C++
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Description

FIRRTL's module abstraction moved off being a mlir::FunctionLike object and that led to massive simplifications and improvements, we should update HW similarly.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by comparing FIRRTL's module abstraction with the current HW module implementation and locating the uses of mlir::FunctionLike. The work is done when HW modules use HWModuleLike instead and the existing module behavior remains supported.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
compilers
Issue type
Refactor
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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