[PATCH] D100264: [SCEV] Don't walk uses of phis without SCEV expression when forgetting
Max Kazantsev via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sun Apr 11 21:34:19 PDT 2021
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
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