1 files changed, 1 insertions, 0 deletions
diff --git a/src/ir/effects.h b/src/ir/effects.h
index 28de83850..46138d03c 100644
--- a/src/ir/effects.h
+++ b/src/ir/effects.h
@@ -364,6 +364,7 @@ public:
     isAtomic = isAtomic || other.isAtomic;
     throws_ = throws_ || other.throws_;
     danglingPop = danglingPop || other.danglingPop;
+    mayNotReturn = mayNotReturn || other.mayNotReturn;
     for (auto i : other.localsRead) {
       localsRead.insert(i);
     }