QBE compiler backend


QBE 1.2 comes with important correctness fixes as well as improvements to the documentation. Notable changes are:


QBE 1.1 comes with improvements of performance and expressiveness. Notable additions are:


8 years after the first commit in the git repo, at the ask of some package managers and users, I release QBE 1.0. All targets are at parity thanks to great work from contributors, and QBE is used somewhat seriously by a couple people.