Make existing tools aware of IR instruction marks.  (They ignore them,
though).



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3381 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/addrcheck/ac_main.c b/addrcheck/ac_main.c
index 5a76af4..00b35dc 100644
--- a/addrcheck/ac_main.c
+++ b/addrcheck/ac_main.c
@@ -1060,6 +1060,7 @@
              }
              break;
 
+         case Ist_IMark:
          case Ist_MFence:
             break;