From 8648521ece73b717b7fb5d38cfc603c096ecad09 Mon Sep 17 00:00:00 2001 From: James Cherry Date: Fri, 10 Jul 2026 17:05:56 -0700 Subject: [PATCH] GraphDelayCalc::findVertexDelay bidir driver Signed-off-by: James Cherry --- dcalc/GraphDelayCalc.cc | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/dcalc/GraphDelayCalc.cc b/dcalc/GraphDelayCalc.cc index 3c2162ce..8dbcfe47 100644 --- a/dcalc/GraphDelayCalc.cc +++ b/dcalc/GraphDelayCalc.cc @@ -686,7 +686,11 @@ GraphDelayCalc::findVertexDelay(Vertex *vertex, debugPrint(debug_, "delay_calc", 2, "find delays {} ({})", vertex->to_string(this), network_->cellName(network_->instance(pin))); - if (vertex->isRoot()) + if (vertex->isRoot() + // Bidirect port drivers are enqueued by their load vertex in + // annotateLoadDelays. + || (vertex->isBidirectDriver() + && network_->isTopLevelPort(pin))) seedRootSlew(vertex, arc_delay_calc); else { if (network_->isLeaf(pin)) {