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
@@ -7315,8 +7315,8 @@
         // CreateSCEV calls getNoWrapFlagsFromUB, which under certain conditions
         // requires a SCEV for the LHS.
         if (NewBO->Op && (NewBO->IsNSW || NewBO->IsNUW)) {
-          if (auto *I = dyn_cast<Instruction>(NewBO->Op);
-              I && programUndefinedIfPoison(I)) {
+          auto *I = dyn_cast<Instruction>(NewBO->Op);
+          if (I && programUndefinedIfPoison(I)) {
             Ops.push_back(BO->LHS);
             break;
           }