JIT and LLVM
Julia is a Just In Time (JIT) compiled language, rather than an interpreted one. This allows Julia to be dynamic, without having the overhead of interpretation. This compilation infrastructure is built on top of LLVM—more information about it is available on its website: http://llvm.org.
The LLVM compiler infrastructure project originated at the University of Illinois. It now has contributions from a very large number of corporate as well as independent developers. As a result of all this work, it is now a very high-quality, yet modular, system for many different compilation and code generation activities.
Julia uses LLVM for its JIT compilation needs. The Julia runtime code generator produces LLVM Intermediate Representation ...
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