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+/*
+ * nextpnr -- Next Generation Place and Route
+ *
+ * Copyright (C) 2018 Clifford Wolf <clifford@clifford.at>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include "design_utils.h"
+
+void replace_port(CellInfo *old_cell, PortInfo *old, CellInfo *rep_cell,
+ PortInfo *rep)
+{
+ assert(old->type == rep->type);
+
+ rep->net = old->net;
+ old->net = nullptr;
+ if (rep->type == PORT_OUT) {
+ rep->net->driver.cell = rep_cell;
+ rep->net->driver.port = rep->name;
+ } else if (rep->type == PORT_IN) {
+ for (PortRef &load : rep->net->users) {
+ if (load.cell == old_cell && load.port == old->name) {
+ load.cell = rep_cell;
+ load.port = rep->name;
+ }
+ }
+ }
+}