This repository is modified from https://github.com/c3lang/win-llvm, which at the same time is a fork from https://github.com/vovkos/llvm-package-windows
The goal of this repository is to provide cached LLVM binaries for Birth projects.
LLVM is huge, and it's getting bigger with each and every release. Building it together with a project that depends on it (e.g., a programming language) during a CI build is not an option -- building just LLVM eats most (earlier LLVM releases), and all (recent LLVM releases) of the allotted CI build time.
So why not use pre-built packages from the official LLVM download page? Unfortunately, the official binaries cover just a tiny fraction of possible build configurations on Microsoft Windows. There are no Debug libraries, no builds for the static LIBCMT, and only a single toolchain per LLVM release.
The llvm-package-windows project builds all major versions of LLVM on GitHub Actions for the following, much more complete matrix:
- Toolchain:
- Visual Studio 2019
- Configuration:
- Debug
- Release
- Target CPU:
- AMD64 (a.k.a. x86_64)
- C/C++ Runtime:
- LIBCMT (static)
- MSVCRT (dynamic)
The resulting LLVM binary packages are uploaded as GitHub Release artifacts. Compiler developers can now thoroughly test their LLVM-dependent projects on GitHub CI or AppVeyor CI simply by downloading and unpacking an archive with the required LLVM prebuilt binaries during the CI installation stage.