DragonEgg is a gcc plugin that replaces GCC's optimizers and code
generators with those from the LLVM project. It works with gcc-4.5
or gcc-4.6, can target the x86-32/x86-64 and ARM processor families,
and has been successfully used on the Darwin, FreeBSD, KFreeBSD,
Linux and OpenBSD platforms. It fully supports Ada, C, C++ and
Fortran. It has partial support for Go, Java, Obj-C and Obj-C++.

WWW: http://dragonegg.llvm.org/