Module rustc_data_structures::graph::dominators

Finding the dominators in a control-flow graph.

Algorithm based on Loukas Georgiadis, “Linear-Time Algorithms for Dominators and Related Problems”, ftp://ftp.cs.princeton.edu/techreports/2005/737.pdf

Additionally useful is the original Lengauer-Tarjan paper on this subject, “A Fast Algorithm for Finding Dominators in a Flowgraph” Thomas Lengauer and Robert Endre Tarjan. https://www.cs.princeton.edu/courses/archive/spr03/cs423/download/dominators.pdf

Structs

• Dominators
  Tracks the list of dominators for each node.
• Iter
• PreOrderFrame 🔒
• PreorderIndex 🔒
• Time 🔒
  Describes the number of vertices discovered at the time when processing of a particular vertex started and when it finished. Both values are zero for unreachable vertices.

Functions

• compress 🔒
• compute_access_time 🔒
• dominators
• eval 🔒
  Evaluate the link-eval virtual forest, providing the currently minimum semi value for the passed node (which may be itself).
• is_processed 🔒