Portability | portable |
---|---|

Stability | experimental |

Maintainer | <morrow@moonpatio.com> |

The Lengauer-Tarjan graph dominators algorithm.

[1] Lengauer, Tarjan,
*A Fast Algorithm for Finding Dominators in a Flowgraph*, 1979.

[2] Muchnick,
*Advanced Compiler Design and Implementation*, 1997.

[3] Brisk, Sarrafzadeh,
*Interference Graphs for Procedures in Static Single*
*Information Form are Interval Graphs*, 2007.

TODO: An ST version.

- type Node = Int
- type Path = [Node]
- type Edge = (Node, Node)
- type Graph = IntMap IntSet
- type Rooted = (Node, Graph)
- idom :: Rooted -> [(Node, Node)]
- ipdom :: Rooted -> [(Node, Node)]
- domTree :: Rooted -> Tree Node
- pdomTree :: Rooted -> Tree Node
- dom :: Rooted -> [(Node, Path)]
- pdom :: Rooted -> [(Node, Path)]
- pddfs :: Rooted -> [Node]
- rpddfs :: Rooted -> [Node]
- fromAdj :: [(Node, [Node])] -> Graph
- fromEdges :: [Edge] -> Graph
- toAdj :: Graph -> [(Node, [Node])]
- toEdges :: Graph -> [Edge]
- asTree :: Rooted -> Tree Node
- asGraph :: Tree Node -> Rooted
- parents :: Tree a -> [(a, a)]
- ancestors :: Tree a -> [(a, [a])]