1 files changed, 4 insertions, 0 deletions
diff --git a/src/ir/effects.h b/src/ir/effects.h
index f9b6ca6fc..2de5c54f6 100644
--- a/src/ir/effects.h
+++ b/src/ir/effects.h
@@ -618,6 +618,10 @@ private:
         parent.implicitTrap = true;
       }
     }
+    void visitArrayCopy(ArrayCopy* curr) {
+      // traps when a ref is null, or when out of bounds.
+      parent.implicitTrap = true;
+    }
     void visitRefAs(RefAs* curr) {
       // traps when the arg is not valid
       if (curr->value->type.isNullable()) {