1 files changed, 2 insertions, 1 deletions

diff --git a/src/lj_ir.h b/src/lj_ir.h
index ae533939..a29fca6f 100644
--- a/src/lj_ir.h
+++ b/src/lj_ir.h
@@ -115,9 +115,10 @@
   _(CNEW,       AW, ref, ref) \
   _(CNEWI,      NW, ref, ref)  /* CSE is ok, not marked as A. */ \
   \
-  /* Write barriers. */ \
+  /* Barriers. */ \
   _(TBAR,       S , ref, ___) \
   _(OBAR,       S , ref, ref) \
+  _(XBAR,       S , ___, ___) \
   \
   /* Type conversions. */ \
   _(CONV,       N , ref, lit) \