Index: lldb/trunk/source/Plugins/Process/Windows/Common/NativeProcessWindows.cpp
===================================================================
--- lldb/trunk/source/Plugins/Process/Windows/Common/NativeProcessWindows.cpp
+++ lldb/trunk/source/Plugins/Process/Windows/Common/NativeProcessWindows.cpp
@@ -479,7 +479,7 @@
       return ExceptionResult::BreakInDebugger;
     }
 
-    // Fall through
+    LLVM_FALLTHROUGH;
   default:
     LLDB_LOG(log,
              "Debugger thread reported exception {0:x} at address {1:x} "