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-rw-r--r--passes/techmap/iopadmap.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/passes/techmap/iopadmap.cc b/passes/techmap/iopadmap.cc
index 15ad51c87..4acbf7c0d 100644
--- a/passes/techmap/iopadmap.cc
+++ b/passes/techmap/iopadmap.cc
@@ -312,7 +312,7 @@ struct IopadmapPass : public Pass {
if (!portname2.empty()) {
new_wire = module->addWire(NEW_ID, wire);
module->swap_names(new_wire, wire);
- new_wire->attributes.swap(wire->attributes);
+ wire->attributes.clear();
}
if (flag_bits)