diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp
--- a/llvm/lib/Analysis/ScalarEvolution.cpp
+++ b/llvm/lib/Analysis/ScalarEvolution.cpp
@@ -10824,8 +10824,6 @@
   return SCEVExprContains(S, [](const SCEV *S) {
     if (const auto *SU = dyn_cast<SCEVUnknown>(S))
       return isa<UndefValue>(SU->getValue());
-    else if (const auto *SC = dyn_cast<SCEVConstant>(S))
-      return isa<UndefValue>(SC->getValue());
     return false;
   });
 }