[PATCH] D26037: Add LoopSink pass for PGO.

[Dehao Chen via llvm-commits]

danielcdh added a comment.

We need this pass to remove LCSSA nodes because this will be the last loop pass.

Another question is: shall we pin this pass to PGO only? If not, we can simply add it to lib/Transforms/IPO/PassManagerBuilder.cpp


https://reviews.llvm.org/D26037