WIP: scalar to symbol quickfix

dace/transformation/passes/scalar_to_symbol.py

@@ -631,6 +631,7 @@ def apply_pass(self, sdfg: SDFG, _: Dict[Any, Any]) -> Set[str]:
         integers_only = self.integers_only
 
         to_promote = find_promotable_scalars(sdfg, transients_only=transients_only, integers_only=integers_only)
+        promoted = set()
         if ignore:
             to_promote -= ignore
         if len(to_promote) == 0:
@@ -640,7 +641,7 @@ def apply_pass(self, sdfg: SDFG, _: Dict[Any, Any]) -> Set[str]:
             scalar_nodes = [n for n in state.nodes() if isinstance(n, nodes.AccessNode) and n.data in to_promote]
             # Step 2: Assignment tasklets
             for node in scalar_nodes:
-                if state.in_degree(node) == 0:
+                if node.data in promoted or state.in_degree(node) == 0:
                     continue
                 in_edge = state.in_edges(node)[0]
                 input = in_edge.src
@@ -681,6 +682,7 @@ def apply_pass(self, sdfg: SDFG, _: Dict[Any, Any]) -> Set[str]:
 
                 # Clean up all nodes after assignment was transferred
                 new_state.remove_nodes_from(new_state.nodes())
+                promoted.add(node.data)
 
         # Step 3: Scalar reads
         remove_scalar_reads(sdfg, {k: k for k in to_promote})