def _get_jit_address(func, sig):
    """Similar to ``_get_wrapper_address()`` but get the `.jit_addr` instead.
    """
    if isinstance(func, Dispatcher):
        cres = func.get_compile_result(sig)
        jit_name = cres.fndesc.llvm_func_name
        addr = cres.library.get_pointer_to_function(jit_name)
    else:
        addr = 0
    if not isinstance(addr, int):
        raise TypeError(
            f'jit address must be integer, got {type(addr)} instance')
    return addr
Similar to ``_get_wrapper_address()`` but get the `.jit_addr` instead.
    
numba/experimental/function_type.py