1 files changed, 3 insertions, 1 deletions
diff --git a/contrib/llvm-project/llvm/lib/Transforms/Utils/LoopVersioning.cpp b/contrib/llvm-project/llvm/lib/Transforms/Utils/LoopVersioning.cpp
index 97f29527bb95..6309eed7963d 100644
--- a/contrib/llvm-project/llvm/lib/Transforms/Utils/LoopVersioning.cpp
+++ b/contrib/llvm-project/llvm/lib/Transforms/Utils/LoopVersioning.cpp
@@ -137,8 +137,10 @@ void LoopVersioning::addPHINodes(
     // See if we have a single-operand PHI with the value defined by the
     // original loop.
     for (auto I = PHIBlock->begin(); (PN = dyn_cast<PHINode>(I)); ++I) {
-      if (PN->getIncomingValue(0) == Inst)
+      if (PN->getIncomingValue(0) == Inst) {
+        SE->forgetValue(PN);
         break;
+      }
     }
     // If not create it.
     if (!PN) {