For anyone interested, LLVM 2.4 was just released: http://lists.cs.uiuc.edu/pipermail/llvm-announce/2008-November/000030.html http://llvm.org/releases/2.4/docs/ReleaseNotes.html
It has a number of new features, but the most user visible one is that it compiles about 30% faster than LLVM 2.3 at "-O0 -g". This is a common mode for the compile/debug/edit turn around cycle and for various JIT applications. llvm-gcc was already typically 30% faster than GCC at compiling code when optimizations are enabled.
Please see the release notes for more details, and follow up on the llvmdev mailing list if you have questions.
-Chris
