QBE – Compiler Back end: Version 1.3
The QBE compiler backend has released version 1.3, featuring significant code updates and performance optimizations. The release includes new IL matching algorithms, Windows ABI support, and position-independent code generation.
Why it matters
Compiler technology is foundational to software performance; improvements here directly impact the efficiency of applications built on the QBE backend.
QBE 1.3 took a while to cook, but it is the most significant release since 1.0 with around 7k new lines of code and 1.5k deleted ones. In addition to the usual bug fixes, QBE gained a new and original IL matching algorithm, new optimizations from Roland Paterson-Jones, Scott Graham added support for the Windows ABI, and I implemented a plan suggested by Michael Forney to have QBE produce position-independent code (as in shared objects). QBE is teamwork, and I am happy to thank all the contributors to this release. In the rest of the notes we will take a closer look at some of the meat of the release.
Technical report on software development with no political or social agenda.
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