Index: lib/Analysis/ScopInfo.cpp
===================================================================
--- lib/Analysis/ScopInfo.cpp
+++ lib/Analysis/ScopInfo.cpp
@@ -3404,9 +3404,14 @@
 
   Data = {N, PwAff};
 
+#ifndef NDEBUG
   auto Res = isl_union_set_foreach_set(USet, &mapToDimension_AddSet, &Data);
 
   assert(Res == isl_stat_ok);
+#else
+  isl_union_set_foreach_set(USet, &mapToDimension_AddSet, &Data);
+
+#endif
 
   isl_union_set_free(USet);
   return isl_multi_union_pw_aff_from_union_pw_multi_aff(Data.Res);