cast lhs

src/pystencils/backend/transformations/hoist_loop_invariant_decls.py

@@ -176,9 +176,8 @@ class HoistLoopInvariantDeclarations:
 
         for node in block.statements:
             if isinstance(node, PsDeclaration):
-                if node.lhs.symbol not in hc.mutated_symbols and hc._is_invariant(
-                    node.rhs
-                ):
+                lhs_symb = cast(PsSymbolExpr, node.lhs).symbol
+                if lhs_symb not in hc.mutated_symbols and hc._is_invariant(node.rhs):
                     hc.hoisted_nodes.append(node)
                     hc.invariant_symbols.add(node.declared_symbol)
                 else: