diff --git a/llvm/lib/Transforms/Utils/MoveAutoInit.cpp b/llvm/lib/Transforms/Utils/MoveAutoInit.cpp
--- a/llvm/lib/Transforms/Utils/MoveAutoInit.cpp
+++ b/llvm/lib/Transforms/Utils/MoveAutoInit.cpp
@@ -40,9 +40,7 @@
 static bool hasAutoInitMetadata(const Instruction &I) {
   return I.hasMetadata(LLVMContext::MD_annotation) &&
          any_of(I.getMetadata(LLVMContext::MD_annotation)->operands(),
-                [](const MDOperand &Op) {
-                  return cast<MDString>(Op.get())->getString() == "auto-init";
-                });
+                [](const MDOperand &Op) { return Op.equalsStr("auto-init"); });
 }
 
 static std::optional<MemoryLocation> writeToAlloca(const Instruction &I) {