compiler: prevent invering dtype on empty cluster

devitocodes · Oct 31, 2023 · f00e0d4 · f00e0d4
1 parent cf85b06
commit f00e0d4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/devito/ir/clusters/cluster.py b/devito/ir/clusters/cluster.py
@@ -483,7 +483,7 @@ def dtype(self):
         If two Clusters perform calculations with different precision, the
         data type with highest precision is returned.
         """
-        dtypes = {i.dtype for i in self}
+        dtypes = {i.dtype for i in self} - {None}
 
         return infer_dtype(dtypes)