--- a/hotspot/src/share/vm/asm/codeBuffer.hpp	Wed Jul 28 17:57:43 2010 -0400
+++ b/hotspot/src/share/vm/asm/codeBuffer.hpp	Tue Aug 03 08:13:38 2010 -0400
@@ -102,7 +102,7 @@
     _locs_point    = NULL;
     _locs_own      = false;
     _frozen        = false;
-    debug_only(_index = -1);
+    debug_only(_index = (char)-1);
     debug_only(_outer = (CodeBuffer*)badAddress);
   }