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* Add DiGraph sum and DiGraph sum test
Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>
* Make DiGraph sum deterministic
Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>
* Remove ordered hashes/sets from DiGraphTests
Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>
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Massive refactoring to WiringTransform with the use of a new EulerTour
class to speed things up via fast least common ancestor (LCA) queries.
Changes include (but are not limited to):
* Use lowest common ancestor when wiring
* Add EulerTour class with naive and Berkman-Vishkin RMQ
* Adds LCA method for Instance Graph
* Enables "Two Sources" using "Top" wiring test as this is now valid
* Remove TopAnnotation from WiringTransform
* Represent WiringTransform sink as `Seq[Named]`
* Remove WiringUtils.countInstances, fix imports
* Support sources under sinks in WiringTransform
* Enable internal module wiring
* Support Wiring of Aggregates
h/t @edcote
fixes #728
Signed-off-by: Schuyler Eldridge <schuyler.eldridge@ibm.com>
Reviewed-by: Jack Koenig<jack.koenig3@gmail.com>
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This resulted in parent modules sometimes being constant proppagated
before a child module. If the child module has a constant driving one of
its outputs, the parent module would thus not see the constant. This
resulted in strange unstable constant propagation behavior where
sometimes constant outputs would not propagate.
Also add test illustrating why this occurs with uses of InstanceGraph
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