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

[Kyle Butt via Phabricator via llvm-commits]

iteratee added a comment.

In https://reviews.llvm.org/D28522#641977, @davidxl wrote:

> 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.


Discussed offline and comments updated to reflect discussion.


https://reviews.llvm.org/D28522