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by masklinn 3121 days ago
> Apple just uses it.

Apple "just uses LLVM" in the same way Apple "just uses Webkit".

Apple hired Chris Lattner back in 2005, just as he completed his PhD. At the time, LLVM could just barely compile Qt4[0] (the result didn't quite actually work yet) and was still hosted on CVS.

Lattner had to make LLVM production-ready (rather than a research project), add a bunch of major features, start a C/C++/ObjC frontend (Clang) and create a team of LLVM developers in the company.

Apple shipped their first bits of LLVM-based tooling in Leopard in 2007.

[0] https://web.archive.org/web/20111004073001/http://lists.trol...