// Maps group IDs to branch IDs.
using ParallelIdsMap = std::map<std::string, std::string>;
using OpToParallelIdsMap = absl::flat_hash_map<Operation*, ParallelIdsMap>;

namespace detail {

class OpSideEffectCollector;

using StackResourceToOps = std::vector<
    absl::flat_hash_map<ResourceId, absl::flat_hash_set<Operation*>>>;

// Side effect analysis info for a single function.
//

}

// Class for propagating op-based side effects bottom-up and collecting them
// per op, by resource ID.
class OpSideEffectCollector {
 public:
  // Recursively collects op-based side effects for all ops in module and
  // populates `op_side_effect_map_`.
  explicit OpSideEffectCollector(ModuleOp module) {
    symbol_table_collection_.getSymbolTable(module);
    for (auto func : module.getOps<func::FuncOp>()) {