LLVM packages for Travis CI

Releases

LLVM Date	LLVM Version	Clang Version	Remarks
2019-Jul-05	llvm-9.0.0-linux-xenial llvm-9.0.0-linux-trusty llvm-9.0.0-osx	clang-9.0.0-linux-xenial clang-9.0.0-linux-trusty clang-9.0.0-osx	The LLVM master branch
2019-Mar-20	llvm-8.0.0-linux-xenial llvm-8.0.0-linux-trusty llvm-8.0.0-osx	clang-8.0.0-linux-xenial clang-8.0.0-linux-trusty clang-8.0.0-osx	The latest official LLVM release
2019-Apr-17	llvm-7.1.0-linux-xenial llvm-7.1.0-linux-trusty llvm-7.1.0-osx	clang-7.1.0-linux-xenial clang-7.1.0-linux-trusty clang-7.1.0-osx	The ABI compatibility with GCC fix for LLVM 7
2016-Dec-23	llvm-3.9.1-linux-xenial llvm-3.9.1-linux-trusty llvm-3.9.1-osx	clang-3.9.1-linux-xenial clang-3.9.1-linux-trusty clang-3.9.1-osx	The latest LLVM which still can be compiled with MSVC 2013
2014-Jun-19	llvm-3.4.2-linux-xenial llvm-3.4.2-linux-trusty llvm-3.4.2-osx	clang-3.4.2-linux-xenial clang-3.4.2-linux-trusty clang-3.4.2-osx	The latest LLVM which still can be compiled with MSVC 2010
	LLVM x.x.x	Clang x.x.x	Create a new issue to request a particular LLVM version

Abstract

LLVM is huge, and it's getting bigger with each and every release. Building it together with a project which depends on it (e.g., an LLVM-targeting programming language) during a CI build is not an option -- building LLVM itself 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 configurations; what's even worse, there's no consistency in the build matrix from release to release. There are no Debug libraries or 32-bit binaries for Ubuntu, sometimes Ubuntu build is missing, sometimes there's no Mac OS X, etc.

The llvm-package-travis project builds all important versions of both LLVM and LibClang on Travis CI (so there's a guarantee of binary compatibility) and for a consistent and much more complete build matrix:

• OS:

  • Linux Ubuntu 16.04 (Xenial Xerus)
  • Linux Ubuntu 14.04 (Trusty Tahr)
  • Mac OS X

• Compiler:

  • GCC (Linux only)
  • Clang

• Configuration:

  • Debug (libraries only, no tools)
  • Release

• Target CPU:

  • IA32 (a.k.a. x86; Linux only)
  • AMD64 (a.k.a. x86_64)

The resulting LLVM binary packages are made publicly available as GitHub release artifacts. Compiler developers can now fully test their LLVM-dependent projects on Travis CI by downloading and unpacking a corresponding LLVM binary archive during the CI installation phase.

Big thanks to the Travis CI team for increasing the allotted build time for llvm-package-travis!

Sample

• Jancy uses llvm-package-windows for CI testing on a range of configurations and LLVM versions. See build logs for more details.