This repository hosts pre-built binaries from the LLVM project, along with infrastructure to build them.

Some details about the binaries and how they're built:

• Included LLVM sub-projects: LLVM and Clang
• Included LLVM backends: all
• LLVM assertions: disabled
• LLVM build configuration: release
• Host OS: Windows, Mac, Linux (Ubuntu 20.04)
• Host Architecture:
  • Windows: x86_64
  • macOS: x86_64 and arm64 (M1)
  • Linux: x86_64 and arm64
  • Linux: ppc64le (emulated with qemu)

These builds generally use minimal dependencies, which get in the way of making portable builds later. This means that e.g., on Ubuntu, the only dependency required to consume these binaries is build-essential.

The build infrastructure is designed to share as much as possible between the host OSes; this means for example that the Windows build uses bash (MINGW) rather than CMD or PowerShell. Note that despite using bash for scripting, the build is still done with Visual Studio on Windows.

Multiarch builds are unfortunately infeasible to do in GitHub Actions due to the 3-4× slowdown with emulation. These commands have to be run locally with each release:

triple=powerpc64le-linux-gnu arch=ppc64le version=19.1.7 threads=20 ./main.sh