stack.getLoc(), ArrayRef<Type>{size_var_type}, ArrayRef<Value>{});
  // Zero-initialize the local vars.
  cutil::WriteLocalVariable(local_size_var,
                            cutil::GetR1Const({0LL}, builder, stack.getLoc()),
                            builder, stack.getLoc());
  cutil::WriteLocalVariable(local_var, buffer, builder, stack.getLoc());
  stack.getHandle().replaceAllUsesWith(local_var);

                             .getSubtypes()[0]},
          ArrayRef<Value>{local_var})
      .getValue();
}

// Creates an AssignVariableOp on a local variable.
TF::AssignVariableOp WriteLocalVariable(Value local_var, Value value,
                                        OpBuilder builder, Location loc) {
  return builder.create<TF::AssignVariableOp>(
      loc, ArrayRef<Type>{}, ArrayRef<Value>{local_var, value});
}