[PATCH] D152744: [DSE] Don't eagerly optimize MemorySSA uses

[Arthur Eubanks via Phabricator via llvm-commits]

aeubanks created this revision.
Herald added subscribers: kmitropoulou, hiraditya.
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aeubanks requested review of this revision.
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Compile time improvements:
https://llvm-compile-time-tracker.com/compare.php?from=a4a2b62495a63516a4f782acff1b19361906546b&to=a408521f71702a5c5fb65077adc23413d8631cfc&stat=instructions:u


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D152744

Files:
  llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp


Index: llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
===================================================================
--- llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
+++ llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
@@ -2069,7 +2069,7 @@
                                 const LoopInfo &LI) {
   bool MadeChange = false;
 
-  MSSA.ensureOptimizedUses();
+  // MSSA.ensureOptimizedUses();
   DSEState State(F, AA, MSSA, DT, PDT, AC, TLI, LI);
   // For each store:
   for (unsigned I = 0; I < State.MemDefs.size(); I++) {


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