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Add "pin safe" functionality to is_node_blocked()

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This commit is contained in:
Eren Dogan
2023-07-26 16:41:46 -07:00
parent d609ef9243
commit 53505e2ed2
1 changed files with 3 additions and 3 deletions
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compiler/router/graph.py
+3 -3
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@@ -65,7 +65,7 @@ class graph:
return False
def is_node_blocked(self, node):
def is_node_blocked(self, node, pin_safe=True):
""" Return if a node is blocked by a blockage. """
blocked = False
@@ -92,7 +92,7 @@ class graph:
safe[i] = False
if not all(safe):
blocked = True
elif blockage in [self.source, self.target]:
elif pin_safe and blockage in [self.source, self.target]:
return False
else:
blocked = True
@@ -104,7 +104,7 @@ class graph:
# If the nodes are blocked by a blockage other than a via
for node in nodes:
if self.is_node_blocked(node):
if self.is_node_blocked(node, pin_safe=False):
return True
# If the nodes are blocked by a via
point = node.center