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Copy-in rather than copy-out in transpiler (backport #11176) #11182

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Nov 2, 2023
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4 changes: 2 additions & 2 deletions qiskit/transpiler/passmanager.py
Original file line number Diff line number Diff line change
Expand Up @@ -65,15 +65,15 @@ def _passmanager_frontend(
input_program: QuantumCircuit,
**kwargs,
) -> DAGCircuit:
return circuit_to_dag(input_program, copy_operations=False)
return circuit_to_dag(input_program, copy_operations=True)

def _passmanager_backend(
self,
passmanager_ir: DAGCircuit,
in_program: QuantumCircuit,
**kwargs,
) -> QuantumCircuit:
out_program = dag_to_circuit(passmanager_ir)
out_program = dag_to_circuit(passmanager_ir, copy_operations=False)

out_name = kwargs.get("output_name", None)
if out_name is not None:
Expand Down