break within two loops is not handled right.

[marwafar]

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Describe the bug

I am getting this error when running my code (code is in next section):

error: 'cc.unwind_break' op arity of arguments and loop result mismatch
RuntimeError: Failure while executing pass pipeline.

During handling of the above exception, another exception occurred:

RuntimeError: could not compile code for 'qrbm_reuse_ancilla'.

Steps to reproduce the bug

import cudaq
import numpy as np

cudaq.set_target("nvidia")

@cudaq.kernel
def qrbm_reuse_ancilla(v_nodes:int, h_nodes:int, theta:list[float], coupling:list[float]):

    qubits_num=v_nodes+h_nodes
    qubits=cudaq.qvector(qubits_num)
    ancilla=cudaq.qubit()

    count=0
    for i in range(v_nodes+h_nodes):
        ry(theta[count],qubits[i])
        count+=1

    count=0

    for v in range(v_nodes):
        for h in range(v_nodes,v_nodes+h_nodes):
            
            while True:
                ry.ctrl(coupling[count],qubits[v],qubits[h],ancilla)
                x(qubits[v])
                ry.ctrl(coupling[count+1],qubits[v],qubits[h],ancilla)
                x(qubits[v])
                x(qubits[h])
                ry.ctrl(coupling[count+1],qubits[v],qubits[h],ancilla)
                x(qubits[v])
                ry.ctrl(coupling[count],qubits[v],qubits[h],ancilla)
                x(qubits[v])
                x(qubits[h])

                res=mz(ancilla)

                if res:
                    x(ancilla)
                    break   
        
            count+=2

    mz(qubits)



v_nodes=2
h_nodes=2
anc=v_nodes*h_nodes

num_parameters=v_nodes+h_nodes+anc
np.random.seed(42)
param=np.random.normal(loc=0, scale=1.0, size=num_parameters)

theta=[2.048261245441427, 1.432970465322398, 2.17743831657737, 2.7122130882862665]
coupling=[1.8256697267461248, 3.141592653589793, 1.8257122143430777, 
          3.141592653589793, 3.141592653589793, 0.4152516591461476, 3.141592653589793, 0.9654676752934497]

#print(theta)
#print(coupling)

count=cudaq.sample(qrbm_reuse_ancilla,v_nodes, h_nodes, theta, coupling)

print(count)

Expected behavior

The code should restart the circuit if the condition is not met. Otherwise, if the condition met the loop should break.

Is this a regression? If it is, put the last known working version (or commit) here.

Not a regression

Environment

• CUDA Quantum version: latest (0.7.1)
• Python version: 3.10
• C++ compiler:
• Operating system:

Suggestions

No response