[BUG] Complex division cannot be compiled with cabi

[Jlisowskyy]

Describe the bug
Complex division cannot be compiled with cabi.

Steps/Code to reproduce bug

1. Prepare a clean python environment
2. Execute pip install numba-cuda
3. The code below demonstrates the behaviour:

import numba.cuda

def div_by_2(x):
    return x / 2

def main():
    sig = numba.cuda.types.complex128(numba.cuda.types.complex128)
    func = numba.cuda.compile(div_by_2, sig, device=True, abi="c")
    print(func)

if __name__ == "__main__":
    main()

Expected behavior
Compilation will fail with error:

NotImplementedError: Python exceptions are unsupported in the CUDA C/C++ ABI

Environment details (please complete the following information):

• Environment location: wsl local machine
• Method of numba-cuda install: pip install
• Python env:

numba-cuda==0.27.0
numba==0.63.1
Python 3.11.14

Additional context
The issue is caused by the complex_div implementation raising a ZeroDivisionError, which the C ABI calling convention does not support (and breaks compilation).

[gmarkall]

I suspect this is a regression introduced in 0.27.0, with #782 WIP to fix it (will check).

[gmarkall]

Confirming that this works in 0.26.0, and is broken on 0.27.0

[gmarkall]

Another thing that is broken:

from numba import cuda, types


def loop():
    for i in range(1):
        pass

def main():
    sig = types.void()
    func = cuda.compile(loop, sig, device=True, abi="c")
    print(func)

if __name__ == "__main__":
    main()