[PATCH] D28522: Codegen: Make chains from lattice-shaped CFGs

[David Li via Phabricator via llvm-commits]

davidxl added a comment.

I am not sure I understand your reply about 'repeatability'.  Can you elaborate? The suggestion is that if 'Succ' can be dup'ed into 'D' which is unplaced, return true. It basically does the same as skipping 'C'.  Besides, checking the successors is not the reliable way to determine if C is block with duplicated bb.


https://reviews.llvm.org/D28522