Function jit_insn_call 

pub unsafe extern "C" fn jit_insn_call(
    func: jit_function_t,
    name: *const c_char,
    jit_func: jit_function_t,
    signature: jit_type_t,
    args: *mut jit_value_t,
    num_args: c_uint,
    flags: c_int,
) -> jit_value_t