# llvm/llvm-project

The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.

Repository: https://github.com/llvm/llvm-project
Canonical: https://ross.abutalabs.com/products/llvm-project
Homepage: http://llvm.org
Language: LLVM
License: NOASSERTION
License Family: other
Last push: 2026-08-27T00:38:44+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 99, longevity 100
- inputs: {"age_days": 3556, "days_push": 7, "days_rel": 8, "gap_med": 14, "n_releases_24m": 36}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 39958, forks 18375 (observed 2026-08-28T04:12:08.079119+00:00)

## What it is
LLVM is a modular compiler and toolchain infrastructure providing libraries and tools for building optimized compilers, optimizers, and runtime environments. It includes the Clang C/C++ frontend, the LLVM core optimizer and code generator, the LLD linker, and the libc++ standard library.

## Use cases
- build a compiler for a new programming language
- compile C and C++ code with clang
- generate optimized machine code for multiple CPU architectures
- implement a JIT compiler for a scripting language
- perform link-time and profile-guided optimizations
- write static analysis or code transformation tools on LLVM IR

## When to choose
- you are building a compiler, interpreter, or JIT and need mature code generation and optimization
- you need a production-grade C/C++ toolchain as a GCC alternative
- you want to target many CPU architectures from a single intermediate representation
- you need a stable, well-documented IR for program analysis or research

## When to avoid
- you just need to compile an application without custom toolchain work - use an existing compiler directly
- your project is small and the LLVM build size and compile times are overkill
- you need a simple single-language parser without code generation

## Facets
- artifact type: library
- maturity: stable
- function: compiler, interpreter, developer-tools, parser, build-tool
- domain: compilers, programming-languages, developer-tools, performance
- platform: cross-platform, cpp, windows, wasm
- tags: llvm, clang, compiler-infrastructure, llvm-ir, jit, code-generation, optimizer, linker, toolchain, c-plus-plus, linux, macos

## Member repositories
- llvm/llvm-project (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:12:08.079119+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T16:24:05.573588+00:00, confidence not recorded.
  - readme: https://github.com/llvm/llvm-project (fetched 2026-08-28T04:12:08.079119+00:00, sha 65e36a40dd19)
  - homepage: http://llvm.org (fetched 2026-08-29T07:46:52.879939+00:00, sha 598310e35215)
  - site_page: https://llvm.org/Features.html (fetched 2026-08-29T07:46:52.889832+00:00, sha 1eea7524f7f2)
  - site_page: https://llvm.org/docs (fetched 2026-08-29T07:46:52.892321+00:00, sha eec813dda90d)
  - site_page: https://llvm.org/docs/CommandGuide (fetched 2026-08-29T07:46:52.894783+00:00, sha 6227a62c79bd)
  - site_page: https://llvm.org/docs/FAQ.html (fetched 2026-08-29T07:46:52.896799+00:00, sha 5f353e43ec31)
  - site_page: https://llvm.org/docs/DeveloperPolicy.html (fetched 2026-08-29T07:46:52.904567+00:00, sha d291dfc6f321)
  - site_page: https://prereleases.llvm.org/ (fetched 2026-08-29T07:46:52.901154+00:00, sha d5856499e8d1)
- Data as of 2026-08-30T08:39:29.467469+00:00.