[PATCH] D47949: [callsitesplit] Limit the # of predecessors walk when recording condition

[Florian Hahn via Phabricator via llvm-commits]

fhahn added a comment.

The pass currently walks back the single predecessors of a call site and records conditions relevant to the call site. There are cases where doing so we end up visiting the same blocks over and over again. It would probably be better to do a single traversal of the CFG and record relevant conditions once. I have to think a bit more about it, but maybe PredicateInfo could be helpful here and allow us to avoid visiting predecessors.


Repository:
  rL LLVM

https://reviews.llvm.org/D47949