Here is a new entry for the list of projects using LLVM. icGrep is a modern high-performance grep replacement featuring full support for Unicode Level 1 regular expressions. http://parabix.costar.sfu.ca/wiki/ICgrep icGrep is built using the Parabix+LLVM framework for dynamic generation of high-performance text processing applications based on the concept of bitwise data parallelism. http://parabix.costar.sfu.ca/wiki/ICgrep