[PATCH] D15857: [InstCombine] Defend against worst-case exponential execution time

[David Majnemer via llvm-commits]

majnemer added a comment.

Out of curiosity, is there a major benefit to canonicalizing this in the middle-end vs doing this transform in code-gen prepare?


Repository:
  rL LLVM

http://reviews.llvm.org/D15857