Phoronix: Why LLVM/Clang Was Ported To A Super Computer

Most often whenever writing about LLVM and its Clang C/C++ compiler front-end on Phoronix, within the forums is a flurry of comments from those in support of and against this modular compiler infrastructure. Some are against LLVM/Clang simply because its BSD-licensed and sponsored by Apple rather than the GPLv3-licensed GCC backed by the FSF. Others, meanwhile, see LLVM as presenting unique advantages and benefits. What reasons would a leading US national laboratory have for deploying LLVM/Clang to their leading super-computer? Here's an explanation from them...

http://www.phoronix.com/vr.php?view=MTIzMDQ