🐛 MQT→Qiskit exporter has no dispatch entry for `OpType.v`/`OpType.vdg`

[JMuff22]

System and Environment Information

mqt.core 3.9.2

Bug Description

mqt.core.ir.QuantumComputation exposes v/vdg as gate methods (V = RX(π/2), V† = RX(-π/2)) and
MQT QMAP's router emits exactly this gate type when producing mapped circuits. However, mqt.core.plugins.qiskit.mqt_to_qiskit's internal _add_standard_operation dispatch has no case for OpType.v/OpType.vdg it falls through to an explicit raise TypeError(...) for any operation type
it doesn't recognize.

Steps to Reproduce

from mqt.core.ir import QuantumComputation
from mqt.core.plugins.qiskit import mqt_to_qiskit

qc = QuantumComputation(1)
qc.v(0)  # V = RX(pi/2)

print(mqt_to_qiskit(qc))

Output

Traceback (most recent call last):
  ...
  File ".../mqt/core/plugins/qiskit/mqt_to_qiskit.py", line 331, in _add_operation
    _add_standard_operation(circ, op, qubit_map)
  File ".../mqt/core/plugins/qiskit/mqt_to_qiskit.py", line 217, in _add_standard_operation
    raise TypeError(msg)
TypeError: Unsupported operation type: OpType.v

[burgholzer]

Thanks for raising this. I'll get a fix on the way.
Note that we are about to release the next major version of MQT Core (v4) that will remove a lot of the QuantumComputation class hierarchy and replace it with a complete MLIR-based compiler infrastructure.
We'll still maintain the v3 release series for quite some while in parallel; just wanted to make you aware!

[burgholzer]

Fixed by #2433.
This will go out in the latest patch/minor release of the v3.x series.
I'll wait with that until I have worked through your other issues in QMAP that may also touch MQT Core 😌