diff --git a/llvm/lib/Transforms/Coroutines/CoroFrame.cpp b/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
--- a/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
+++ b/llvm/lib/Transforms/Coroutines/CoroFrame.cpp
@@ -1863,6 +1863,8 @@
             if (LdInst->getPointerOperandType() != LdInst->getType())
               break;
             CurDef = LdInst->getPointerOperand();
+            if (!(isa<AllocaInst>(CurDef) || isa<LoadInst>(CurDef)))
+              break;
             DIs = FindDbgDeclareUses(CurDef);
           }
         }