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Added transformation to remove successive and identical Quant nodes in the graph #151

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Added transformation to remove successive and identical Quant nodes in the graph #151

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c4bcdb5
Added transformation to remove successive and identical Quant nodes i…
nghielme Nov 8, 2024
cd69110
Aesthetic fix
nghielme Nov 8, 2024
7747a6d
Aesthetic fix
nghielme Nov 8, 2024
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15 changes: 15 additions & 0 deletions src/qonnx/transformation/remove.py
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Original file line number Diff line number Diff line change
Expand Up @@ -144,3 +144,18 @@ def apply(self, model):
break
model = model.transform(InferShapes())
return (model, graph_modified)


class RemoveSuccessiveIdenticalQuant(Transformation):
def apply(self, model):
graph = model.graph
graph_modified = False
for n in graph.node:
if n.op_type == "Quant":
successors = model.find_direct_successors(n)
if successors is not None and len(successors) == 1 and successors[0].op_type == "Quant":
init_node = [model.get_initializer(i) for i in n.input]
init_succ = [model.get_initializer(i) for i in successors[0].input]
if init_node == init_succ:
remove_node_and_rewire(model, n)
return (model, graph_modified)
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