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-rw-r--r--common/kernel/timing.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/common/kernel/timing.cc b/common/kernel/timing.cc
index 66de8dfc..a9f64afa 100644
--- a/common/kernel/timing.cc
+++ b/common/kernel/timing.cc
@@ -299,6 +299,7 @@ void TimingAnalyser::identify_related_domains()
std::function<void(const NetInfo *, dict<IdString, delay_t> &, delay_t)> find_net_drivers =
[&](const NetInfo *ni, dict<IdString, delay_t> &drivers, delay_t delay_acc) {
// Get driving cell and port
+ if (nullptr == ni) return;
const CellInfo *cell = ni->driver.cell;
if (nullptr == cell) return;