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Author SHA1 Message Date
Alessandro Di Federico a9de053243 Introduce GraphAlgorithms
A series of algorithms working on `llvm::GraphTraits`.

* `nodesBetween` computes the set of nodes on all the paths from a node
  A to B.
* Factor out code to iterate over infinite loops into
  `exitless_scc_range`.
* Introduce unit tests.
2019-05-22 18:42:32 +02:00