llvm / llvm/circt

[SV] Wire canonicalizer can apply a name hint

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C++
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Description

Under certain conditions, and SV wire can be canonicalized to the operation that produced the Value written to the wire. In this case, it could be nice to use the wire's old `name` as a `sv.namehint` on the operation the wire canonicalizes to.

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First steps

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  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 locating the SystemVerilog wire canonicalization logic and existing tests for canonicalized wires or sv.namehint handling. Trace how a wire's old name is available when it canonicalizes to the producing operation; done when that name is applied as the operation's sv.namehint under the stated conditions and covered by a test.

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
35/100

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