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Make sure via probes can also be blocked by other blockages

This commit is contained in:
Eren Dogan 2023-07-25 22:21:26 -07:00
parent 62a04ce874
commit d609ef9243
1 changed files with 8 additions and 2 deletions
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10
compiler/router/graph.py
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@ -99,9 +99,15 @@ class graph:
return blocked return blocked
def is_via_blocked(self, point): def is_via_blocked(self, nodes):
""" Return if a via on the given point is blocked by another via. """ """ Return if a via on the given point is blocked by another via. """
# If the nodes are blocked by a blockage other than a via
for node in nodes:
if self.is_node_blocked(node):
return True
# If the nodes are blocked by a via
point = node.center
for via in self.graph_vias: for via in self.graph_vias:
ll, ur = via.rect ll, ur = via.rect
center = via.center() center = via.center()
@ -273,7 +279,7 @@ class graph:
search(i, lambda count: (count / 2) >= y_len, y_len * 2) # Left search(i, lambda count: (count / 2) >= y_len, y_len * 2) # Left
if not hasattr(self.nodes[i], "remove") and \ if not hasattr(self.nodes[i], "remove") and \
not hasattr(self.nodes[i + 1], "remove") and \ not hasattr(self.nodes[i + 1], "remove") and \
not self.is_via_blocked(self.nodes[i].center): not self.is_via_blocked(self.nodes[i:i+2]):
self.nodes[i].add_neighbor(self.nodes[i + 1]) self.nodes[i].add_neighbor(self.nodes[i + 1])
# Remove marked nodes # Remove marked nodes