diff --git a/lldb/source/Target/ThreadPlanCallUserExpression.cpp b/lldb/source/Target/ThreadPlanCallUserExpression.cpp
index 55aa26f..a7d627f 100644
--- a/lldb/source/Target/ThreadPlanCallUserExpression.cpp
+++ b/lldb/source/Target/ThreadPlanCallUserExpression.cpp
@@ -56,7 +56,54 @@
 void
 ThreadPlanCallUserExpression::GetDescription (Stream *s, lldb::DescriptionLevel level)
 {        
-    ThreadPlanCallFunction::GetDescription (s, level);
+    if (level == eDescriptionLevelBrief)
+        s->Printf("User Expression thread plan");
+    else
+        ThreadPlanCallFunction::GetDescription (s, level);
+}
+
+void
+ThreadPlanCallUserExpression::WillPop ()
+{
+    ThreadPlanCallFunction::WillPop();
+    if (m_user_expression_sp)
+        m_user_expression_sp.reset();
+}
+
+bool
+ThreadPlanCallUserExpression::MischiefManaged ()
+{
+    Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP));
+
+    if (IsPlanComplete())
+    {
+        if (log)
+            log->Printf("ThreadPlanCallFunction(%p): Completed call function plan.",
+                        static_cast<void*>(this));
+
+        if (m_manage_materialization && PlanSucceeded() && m_user_expression_sp)
+        {
+            lldb::addr_t function_stack_top;
+            lldb::addr_t function_stack_bottom;
+            lldb::addr_t function_stack_pointer = GetFunctionStackPointer();
+
+            function_stack_bottom = function_stack_pointer - Host::GetPageSize();
+            function_stack_top = function_stack_pointer;
+            
+            StreamString  error_stream;
+            
+            ExecutionContext exe_ctx(GetThread());
+
+            m_user_expression_sp->FinalizeJITExecution(error_stream, exe_ctx, m_result_var_sp, function_stack_bottom, function_stack_top);
+        }
+        
+        ThreadPlan::MischiefManaged ();
+        return true;
+    }
+    else
+    {
+        return false;
+    }
 }
 
 StopInfoSP