[PATCH] D111774: [SCEV][NFC] Reduce memory footprint & compile time via DFS refactoring

[Philip Reames via Phabricator via llvm-commits]

reames added a comment.

LGTM by me as well.  Thanks for doing this, the resulting code is much more idiomatic and readable.


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  https://reviews.llvm.org/D111774/new/

https://reviews.llvm.org/D111774