[PATCH] D56720: [MemorySSA] Add caching results of reaching LiveOnEntry MemoryDef to ClobberWalker

[Alina Sbirlea via Phabricator via llvm-commits]

asbirlea added a comment.

FWIW, the cause of the slowdown is the usage of MemorySSA in EarlyCSE.
Here's an alternative solution: D58248 <https://reviews.llvm.org/D58248>.
On my machine compile time goes from ~41s to ~11s (with vixl ToT today).


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D56720/new/

https://reviews.llvm.org/D56720