http://www.LLVM.org/devmtg/2015-10/ — Swift's High-Level IR: A Case Study of Complementing LLVM IR with Language-Specific Optimization - Joseph Groff & Chris Lattner, Apple Slides: http://llvm.org/devmtg/2015-10/slides/GroffLattner-SILHighLevelIR.pdf — The Swift programming language is built on LLVM and uses LLVM IR and the LLVM backend for code generation, but it also contains a new high-level