--- a/src/hotspot/share/adlc/formsopt.cpp
+++ b/src/hotspot/share/adlc/formsopt.cpp
@@ -445,6 +445,7 @@ FrameForm::FrameForm() {
   _return_value = nullptr;
   _c_return_value = nullptr;
   _interpreter_frame_pointer_reg = nullptr;
+  _cisc_spilling_operand_name = nullptr;
 }
 
 FrameForm::~FrameForm() {