llvm / llvm/circt

[reduce] Handle RefType ports / operations.

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enhancement Reducer
Dominant language
C++
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Merged PRs (30d)
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Description

Improve handling of code using references. These act a bit differently and cannot be invalidated / connected-to.

Reductions involving them specifically may be useful, such as removing them or converting them to wires (especially if some reductions don't/can't handle them well).

Contributor guide

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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

No files, tests, or entry points are named. Start by locating the reduction implementation and the handling of RefType ports and operations, then determine which reductions cannot invalidate or connect them. Done should mean the supported behavior is defined and reductions can remove or convert these references where appropriate, with coverage for the chosen cases.

Written by the indexing model from the issue text.

Assessment

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

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