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Arm today announces that it is supporting the open source LLVM community through the provision of a build bot and build cache that targets the Arm architecture. This allows LLVM developers to locate and fix build and test failures more rapidly.

What is the LLVM Project?

The LLVM project is an open source compiler framework that supports code-generation for many hardware platforms, including Arm. Toolchains based on the LLVM Project are widely adopted by major platform vendors due to its permissive free software license model as well as the modular design which allows reuse of code optimisation and generation components across different hardware platforms.

Technical aspects apart, building and testing such a complex tool is an expensive computing task, which can take several hours. Also, as LLVM supports many architectures, it is not a trivial task for a developer who works on a specific architecture to keep track of the impact of their changes on other architectures.