This paper describes ErLLVM, a new backend for the HiPE compiler, the native
code compiler of Erlang/OTP, that targets the LLVM compiler infrastructure.
Besides presenting the overall architecture of ErLLVM and its integration in
Erlang/OTP, we describe the changes to LLVM that ErLLVM required and discuss
technical challenges and decisions we took. Finally, we provide a detailed
performance evaluation of ErLLVM compared to BEAM, the existing backends of the
HiPE compiler, and Erjang.