Phoronix: LLVM's Clang Is Onto Building The Linux Kernel

In February of this year the Clang C/C++ compiler for LLVM hit the milestone of self-hosting itself after Clang's C support was declared production ready (with the recently released LLVM 2.8, the C++ support is now deemed feature-complete) just last October. In April another achievement was reached for LLVM/Clang and that was building much of FreeBSD's base operating system. Today another milestone has been hit and that's building the Linux kernel for Debian to the point that it's functional and can run the X.Org Server both on bare metal and this can also be done within a QEMU virtualized environment...

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