[PATCH] D114650: [SCEV] Construct SCEV iteratively.

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

Hi! We are seeing some large compile time increases with this patch. For example on F23720290 <https://reviews.llvm.org/F23720290>, the time for `opt -passes=loop-unroll` goes from about 2s to 14s while producing identical output.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D114650/new/

https://reviews.llvm.org/D114650