[PATCH] D30350: [LSR] Add a cap for reassociation of AllFixupsOutsideLoop type LSRUse to protect compile time

[Andrew Trick via Phabricator via llvm-commits]

atrick added a comment.

LSR is fundamentally combinatorial. It relies on arbitrary pruning. I don't like it, but that's the way it is, and we need to guard against pathological cases. I just wonder why you complete bypass the reassociation code instead of simply limiting the number of expressions that participate.


Repository:
  rL LLVM

https://reviews.llvm.org/D30350