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-rw-r--r--common/nextpnr.cc7
1 files changed, 7 insertions, 0 deletions
diff --git a/common/nextpnr.cc b/common/nextpnr.cc
index b04679ad..068bca6f 100644
--- a/common/nextpnr.cc
+++ b/common/nextpnr.cc
@@ -89,6 +89,11 @@ WireId Context::getNetinfoSinkWire(const NetInfo *net_info, const PortRef &user_
delay_t Context::getNetinfoRouteDelay(const NetInfo *net_info, const PortRef &user_info) const
{
+#ifdef ARCH_ECP5
+ if (net_info->is_global)
+ return 0;
+#endif
+
WireId src_wire = getNetinfoSourceWire(net_info);
if (src_wire == WireId())
return 0;
@@ -99,8 +104,10 @@ delay_t Context::getNetinfoRouteDelay(const NetInfo *net_info, const PortRef &us
while (cursor != WireId() && cursor != src_wire) {
auto it = net_info->wires.find(cursor);
+
if (it == net_info->wires.end())
break;
+
PipId pip = it->second.pip;
delay += getPipDelay(pip).maxDelay();
delay += getWireDelay(cursor).maxDelay();