Modern interactive LLVM-based Fortran compiler

 LFortran is a modern open-source (BSD licensed) interactive Fortran compiler
 built on top of LLVM. It can execute user’s code interactively to allow
 exploratory work (much like Python, MATLAB or Julia) as well as compile
 to binaries with the goal to run user’s code on modern architectures such
 as multi-core CPUs and GPUs.