[PATCH] D28934: Write a new SSAUpdater

[Daniel Berlin via Phabricator via llvm-commits]

dberlin added a comment.

Just to note: I'll get back to this at some point.

joerg just gave me a testcase where, out of the 3minutes it takes, 2+ minutes are spent forming and verifying LCSSA, all due to the updater speed :(


https://reviews.llvm.org/D28934