1 files changed, 2 insertions, 0 deletions

diff --git a/src/lj_opt_mem.c b/src/lj_opt_mem.c
index 04b95a6f..214fb632 100644
--- a/src/lj_opt_mem.c
+++ b/src/lj_opt_mem.c
@@ -879,6 +879,8 @@ int lj_opt_fwd_wasnonnil(jit_State *J, IROpT loadop, IRRef xref)
         if (skref == xkref || !irref_isk(skref) || !irref_isk(xkref))
           return 0;  /* A nil store with same const key or var key MAY alias. */
         /* Different const keys CANNOT alias. */
+      } else if (irt_isp32(IR(skref)->t) != irt_isp32(IR(xkref)->t)) {
+        return 0;  /* HREF and HREFK MAY alias. */
       }  /* Different key types CANNOT alias. */
     }  /* Other non-nil stores MAY alias. */
     ref = store->prev;