Catch empty operands operation in collapse_constants.py

fkie-cad · Oct 16, 2023 · 83252d9 · 83252d9
1 parent cc44b6d
commit 83252d9
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/...mpiler/pipeline/controlflowanalysis/expression_simplification/rules/collapse_constants.py b/...mpiler/pipeline/controlflowanalysis/expression_simplification/rules/collapse_constants.py
@@ -14,6 +14,8 @@ class CollapseConstants(SimplificationRule):
     """
 
     def apply(self, operation: Operation) -> list[tuple[Expression, Expression]]:
+        if not operation.operands:
+            return []  # Is this even allowed?
         if not all(isinstance(o, Constant) for o in operation.operands):
             return []