diff --git a/llvm/lib/Transforms/IPO/AttributorAttributes.cpp b/llvm/lib/Transforms/IPO/AttributorAttributes.cpp
--- a/llvm/lib/Transforms/IPO/AttributorAttributes.cpp
+++ b/llvm/lib/Transforms/IPO/AttributorAttributes.cpp
@@ -1383,7 +1383,7 @@
         LengthVal = Length->getSExtValue();
       Value &Ptr = getAssociatedValue();
       unsigned ArgNo = getIRPosition().getCallSiteArgNo();
-      ChangeStatus Changed;
+      ChangeStatus Changed = ChangeStatus::UNCHANGED;
       if (ArgNo == 0) {
         handleAccess(A, *MI, Ptr, nullptr, AccessKind::AK_WRITE, 0, Changed,
                      nullptr, LengthVal);