--- gcc/asan.c.orig	2012-11-09 21:26:26.000000000 +0100
+++ gcc/asan.c	2012-11-09 21:26:00.000000000 +0100
@@ -1362,6 +1362,8 @@ transform_statements (void)
 	    instrument_assignment (&i);
 	  else if (is_gimple_call (s))
 	    maybe_instrument_call (&i);
+	  if (gsi_end_p (i))
+	    break;
         }
     }
 }