diff --git a/Source/JavaScriptCore/bytecode/ExitKind.h b/Source/JavaScriptCore/bytecode/ExitKind.h
index 700d388..22a54a1 100644
--- a/Source/JavaScriptCore/bytecode/ExitKind.h
+++ b/Source/JavaScriptCore/bytecode/ExitKind.h
@@ -53,11 +53,13 @@
     Uncountable, // We exited for none of the above reasons, and we should not count it. Most uses of this should be viewed as a FIXME.
     UncountableInvalidation, // We exited because the code block was invalidated; this means that we've already counted the reasons why the code block was invalidated.
     WatchdogTimerFired, // We exited because we need to service the watchdog timer.
-    DebuggerEvent // We exited because we need to service the debugger.
+    DebuggerEvent, // We exited because we need to service the debugger.
+    ExceptionCheck, // We exited because a direct exception check showed that we threw an exception from a C call.
+    GenericUnwind, // We exited because a we arrived at this OSR exit from genericUnwind.
 };
 
 const char* exitKindToString(ExitKind);
-bool exitKindIsCountable(ExitKind);
+bool exitKindMayJettison(ExitKind);
 
 } // namespace JSC