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read_sdf missing liberty seg fault 

Signed-off-by: James Cherry <cherry@parallaxsw.com>
This commit is contained in:
James Cherry 2022-09-05 21:28:47 -07:00
parent bb50746f72
commit 5bfddf4518
1 changed files with 10 additions and 8 deletions
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18
sdf/SdfReader.cc
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@ -248,14 +248,16 @@ SdfReader::findWireEdge(Pin *from_pin,
{
Vertex *to_vertex, *to_vertex_bidirect_drvr;
graph_->pinVertices(to_pin, to_vertex, to_vertex_bidirect_drvr);
// Fanin < fanout, so search for driver from load.
VertexInEdgeIterator edge_iter(to_vertex, graph_);
while (edge_iter.hasNext()) {
Edge *edge = edge_iter.next();
const TimingRole *edge_role = edge->role();
if (edge->from(graph_)->pin() == from_pin
&& edge_role->sdfRole()->isWire())
return edge;
if (to_vertex) {
// Fanin < fanout, so search for driver from load.
VertexInEdgeIterator edge_iter(to_vertex, graph_);
while (edge_iter.hasNext()) {
Edge *edge = edge_iter.next();
const TimingRole *edge_role = edge->role();
if (edge->from(graph_)->pin() == from_pin
&& edge_role->sdfRole()->isWire())
return edge;
}
}
return nullptr;
}