Swift compiler

The Swift compiler translates Swift source code into efficient machine code in an executable way. When parsing the source code, the Swift compiler will perform full type-checking and generate an intermediate language called the Swift Intermediate Language (SIL) for further code analysis and optimization. The intermediate code will then be reduced to Low Level Virtual Machine Intermediate Representation (LLVM IR) (http://llvm.org/) for the LLVM to turn that into machine code: