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Add opaque Handle infrastructure
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Authored by nhaehnle on Dec 9 2020, 2:44 AM.
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This infrastructure is a foundation for writing some algorithms
generically without resorting to templates, by treating "references"
(usually pointers) to objects such as basic blocks as opaque handles.

Subsequent changes will add more mechanisms to facilitate working with
such handles, and introduce type-erased base classes in some places
(e.g. dominator trees) in terms of handles.

Change-Id: I79e69589e972e97335189f9558ebe44c7b00771b

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Event Timeline

nhaehnle created this revision.Dec 9 2020, 2:44 AM
nhaehnle requested review of this revision.Dec 9 2020, 2:44 AM
Herald added a project: Restricted Project. · View Herald TranscriptDec 9 2020, 2:44 AM
nhaehnle updated this revision to Diff 310530.Dec 9 2020, 7:24 AM

Remove HandleWrapperFor which got de facto superseded by SsaContext
(subsequent patch). Update comment slightly to match.