[PATCH] D149435: [LCSSA] Don't invalidate SCEV

[Nikita Popov via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG5cbb9f7a58d9: [LCSSA] Don't invalidate SCEV (authored by nikic).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D149435/new/

https://reviews.llvm.org/D149435

Files:
  llvm/lib/Transforms/Utils/LCSSA.cpp


Index: llvm/lib/Transforms/Utils/LCSSA.cpp
===================================================================
--- llvm/lib/Transforms/Utils/LCSSA.cpp
+++ llvm/lib/Transforms/Utils/LCSSA.cpp
@@ -150,11 +150,6 @@
     SSAUpdater SSAUpdate(&InsertedPHIs);
     SSAUpdate.Initialize(I->getType(), I->getName());
 
-    // Force re-computation of I, as some users now need to use the new PHI
-    // node.
-    if (SE)
-      SE->forgetValue(I);
-
     // Insert the LCSSA phi's into all of the exit blocks dominated by the
     // value, and add them to the Phi's map.
     for (BasicBlock *ExitBB : ExitBlocks) {


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