[PATCH] D100264: [SCEV] Don't walk uses of phis without SCEV expression when forgetting

[Max Kazantsev via Phabricator via llvm-commits]

mkazantsev added inline comments.


================
Comment at: llvm/lib/Analysis/ScalarEvolution.cpp:7101
       ValueExprMapType::iterator It =
         ValueExprMap.find_as(static_cast<Value *>(I));
       if (It != ValueExprMap.end()) {
----------------
I don't quite get why is that supposed to help the compile time. We perform the same very check few lines below. Are you saving time on pushing/popping to the queue?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D100264/new/

https://reviews.llvm.org/D100264