Welcoming Repositories Index Llvm Ecosystem

Top Welcoming Open-Source Llvm Repositories

Top welcoming Llvm repositories. Scored by real 90-day external PR merge rates, maintainer review turnaround speed, and first-time contributor success.

Updated daily • Sun, 30 Aug 2026 UTC
Tracked Repos
18
>100 stars verified
Avg Merge Rate
16%
90-day external PRs
Open GFIs
47
Beginner friendly issues
Welcoming Tier
1
S & A Tier maintainers

Ranked Llvm Repositories

Showing top 18 of 18 ranked repositories

RankRepositoryTierScoreMerge RateGood First Issues
#1
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
A•Welcoming59.09.2%47
#2
Clspv is a compiler for OpenCL C to Vulkan compute shaders
B•Solid49.9100.0% -
#3
C++ metaprogramming shell
B•Solid48.662.5% -
#4
A Go compiler based on LLVM in order to better integrate Go with the C ecosystem including Python and JavaScript
B•Solid45.18.3% -
#5
Semi-implicit Cross-scale Hydroscience Integrated System Model (SCHISM)
B•Solid43.6100.0% -
#6
chipStar is a tool for compiling and running HIP/CUDA on SPIR-V via OpenCL or Level Zero APIs.
D•Risky29.30.0% -
#7
Intel staging area for llvm.org contribution. Home for Intel LLVM-based projects.
D•Risky28.30.0% -
#8
High-performance automatic differentiation of LLVM and MLIR.
D•Risky24.70.0% -
#9
A tool and a library for bi-directional translation between SPIR-V and LLVM IR
D•Risky24.40.0% -
#10
A project dedicated to building LLVM toolchain for Arm and AArch64 embedded targets and AArch64 native Linux development.
D•Risky21.90.0% -
#11
This repository is responsible for the LLVM-related parts of Jeandle.
D•Risky18.30.0% -
#12
Port of LLVM to the MOS 6502 and related processors
D•Risky8.00.0% -
#13
Fork of LLVM to support AMD AIEngine processors
D•Risky8.00.0% -
#14
A guide that explains how high level programming language constructs are mapped to the LLVM intermediate language.
D•Risky0.00.0% -
#15
Yet another llvm based obfuscator based on goron.
D•Risky0.00.0% -
#16
PicoLisp is an open source Lisp dialect. It is based on LLVM and compiles and runs on any 64-bit POSIX system. Its most prominent features are simplicity and minimalism.
D•Risky0.00.0% -
#17
Port of MBA Solver SiMBA to C/C++ (MBA deobfuscation in real world applications)
D•Risky0.00.0% -
#18
Static Analysis Course
D•Risky0.00.0% -

How to Get Your Llvm PR Merged

1
Check C-Rankâ„¢ First: Pick projects with S or A tiers to avoid maintainer ghosts and slow review cycles.
2
Run Local Verification: Ensure test suites and formatting linters pass before opening a pull request.
3
Submit in Maintainer Windows: Check the repository report card to submit when maintainers are most active.

Top Llvm Frameworks & Stacks

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Frequently Asked Questions: Llvm Open Source

What is the most welcoming Llvm open-source repository?

The highest-ranked Llvm repository on GetMerged is currently llvm/llvm-project, with a C-Rank score of 59.0/100 and a 9.2% PR merge rate.

How can I find good first issues in Llvm?

You can browse verified beginner-friendly issues in Llvm by visiting our curated Good First Issues directory at getmerged.abhishekco.de/good-first-issue/llvm.

What makes a Llvm repository ‘Super Welcoming’ on GetMerged?

A ‘Super Welcoming’ (S-Tier) Llvm repository demonstrates an external PR merge rate above 80%, a median first response time within 24 to 48 hours, active review feedback, and clear onboarding documentation.