LLVM Compiler Infrastructure

Preferred license: University of Illinois/NCSA Open Source License
LLVM is an open source compiler infrastructure project, providing aggressive static compilation as well as JIT code generation. LLVM supports optimization and code generation for many architectures.
Actual source code produced by the student participants in Google Summer of Code™ for LLVM Compiler Infrastructure can be found here.
 
Current Projects
by Tilmann Scheller, mentored by Nicolas Geoffray
by Argiris Kirtzidis, mentored by Chris Lattner
by Bruno Cardoso Lopes, mentored by Eric Marshall Christopher