A technical blog post exploring algorithms for computing graph dominators, covering the classic Lengauer-Tarjan algorithm and simpler alternatives like the 2001 paper's approach. The author compares implementation complexity versus practical performance, noting that LLVM uses dominator trees at scale in compile pipelines.
Background
Dominator trees are fundamental data structures used extensively in compiler optimization, static analysis, and dependency analysis. The Lengauer-Tarjan algorithm has been the standard reference since 1979 for computing them efficiently.
- Source
- Lobsters
- Published
- Aug 14, 2026 at 06:00 PM
- Score
- 6.0 / 10