1 files changed, 8 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/CGExpr.cpp b/clang/lib/CodeGen/CGExpr.cpp
index 85c768807572..b5debd93b0f6 100644
--- a/clang/lib/CodeGen/CGExpr.cpp
+++ b/clang/lib/CodeGen/CGExpr.cpp
@@ -3314,7 +3314,14 @@ LValue CodeGenFunction::EmitDeclRefLValue(const DeclRefExpr *E) {
       auto *FD = LambdaCaptureFields.lookup(BD);
       return EmitCapturedFieldLValue(*this, FD, CXXABIThisValue);
     }
-    return EmitLValue(BD->getBinding());
+    // Suppress debug location updates when visiting the binding, since the
+    // binding may emit instructions that would otherwise be associated with the
+    // binding itself, rather than the expression referencing the binding. (this
+    // leads to jumpy debug stepping behavior where the location/debugger jump
+    // back to the binding declaration, then back to the expression referencing
+    // the binding)
+    DisableDebugLocationUpdates D(*this);
+    return EmitLValue(BD->getBinding(), NotKnownNonNull);
   }
 
   // We can form DeclRefExprs naming GUID declarations when reconstituting