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...tree are optimisations. We've added some infrastructure a few releases ago for plugging optimisations into the pipeline, but the APIs required to write optimisations change a lot. They can't be C APIs, because they require inheriting from FunctionPass or similar (we could, perhaps, have a CFunctionPass class that had callbacks for the virtual functions, but it would be quite clunky). One of the goals of LLVM was that you'd be able to write optimisations that made use of the LLVM infrastructure but only made sense for a particular source language, or even set of idioms used with a particular...

Hello LLVM community, Over the last few years the LLVM team here at Apple and development teams elsewhere have been busily working on finding new and interesting uses for LLVM. Some of these uses are traditional compilers, but a growing number of them aren’t. Some of LLVM’s new clients, like WebKit, are embedding LLVM into existing applications. These embedded uses of LLVM have their own unique