Built-in Passes

Qrisp ships with the following circuit transformation passes. Each pass is a CircuitPass that transforms a QuantumCircuit and can be used standalone or as part of a PassManager pipeline.

Pass	Description
arrange_swaps	Rearrange SWAP gates for better cancellation later
fuse_adjacents	Cancel adjacent gate–inverse-gate pairs via DAG analysis
cancel_zero_controls	Remove gates controlled on |0⟩ states
combine_single_qubit_gates	Fuse consecutive single-qubit gates into one
commute_swaps	Commute single-qubit ops past SWAP gates
convert_to_cx	Convert two-qubit gates (CZ, CY, SWAP) to CX-based form
convert_to_cz	Convert two-qubit gates (CX, CY, SWAP) to CZ-based form
convert_to_prx	Convert single-qubit gates to native PRX (Phased-RX) gates
decompose	Recursively dissolve synthesized gates into elementary gates
gray_synth_toffoli	Synthesize Toffoli gates using Gray-code decomposition
manual_layout	Re-index qubits according to a user-supplied mapping
remove_barriers	Remove barrier instructions from the circuit
resolve_swaps	Resolve SWAP gates by physically permuting qubits
reverse_parallelize	Reverse-parallelize the circuit for reuse in conjugate
visualize	Print the circuit to stdout for debugging