Florian Hahn 75e87c3f2a [TableGen] Avoid leaking TreePatternNodes by using shared_ptr. ...

By using std::shared_ptr for TreePatternNode, we can avoid leaking them.

Reviewers: craig.topper, dsanders, stoklund, tstellar, zturner

Reviewed By: dsanders

Differential Revision: https://reviews.llvm.org/D47463

llvm-svn: 333591

2018-05-30 21:00:18 +00:00

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