llvm/llvm-project

MetaRenamer command line options should be replaced with pass parameters

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#133,875 opened on Apr 1, 2025

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good first issuellvm:transforms

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Description

The metarenamer pass currently defines 5 cl::opts.

In general with the new pass manager, we should prefer to use named pass parameters and avoid using global options. For utility passes like this, which are only useful when manually running opt, there should be low friction to replacing them.

https://github.com/llvm/llvm-project/pull/133874 is an example of a simpler migration for another utility pass for reference.

Contributor guide

Research direction
Study the MetaRenamer pass source code, identify the 5 cl::opts, and follow the pattern from PR #133874 to replace them with pass parameters. Update all usages in the codebase.
Tech stack
ccpp
Domain
compilersbackend
Issue type
Refactor
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
C++LLVM pass developmentGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65