[PATCH] D43293: [SimplifyCFG] Don't remove preheaders when we need canonical loops.

Michael Haidl via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Feb 14 23:57:34 PST 2018

pacxx added a comment.

I don't see any use of empty preheaders. Can you explain for which cases empty preheaders are important?


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