QBE compiler backend

Language frontends

• cproc

  A comprehensive C11 frontend for QBE by Michael Forney. cproc is known to bootstrap GCC and is used as main C compiler in the oasis Linux distribution. cproc is able to compile its own source code (bootstrap).

• Hare

  A systems programming language by Drew DeVault that aims for simplicity, stability, and robustness. Hare comes with a well furnished standard library. It also does its best effort to save the programmer from notorious C footguns (null pointer dereferences, integer promotions). Hare has been using QBE as backend from the beginning.

• Antimony

  A simple general-purpose programming language. The Antimony compiler emits JavaScript, but a native backend is also provided via QBE.

• SCC

  A complete set of tools for C99 development (libc, compiler, linker) from Roberto E. Vargas Caballero. The compiler uses QBE as one of its backends.

• PACC

  A C compiler from Benjamin Rosseaux that reuses the IL design and many passes from QBE.

Education

• ISPRAS

  QBE is used as main practice material for a class on compilers given by the Russian ISPRAS institute. You can find on their site a complete translation in Russian of the IL spec as well as some documentation about the compiler internals.