I'm trying to get some information about register usage in my *CUDA* kernels using *NVCC* option  
 `--ptxas-options=v` and while with global functions everything is ok, I'm having some difficulties with the device ones since the 

`ptxas info : Used N registers`

line is missing in the output. I tried to use the noinline keyword and to keep them in another file, with respect to the calling global function, since I thought that *NVCC* was reporting the full register usage of the global function including the called device ones after the inline but nothing changes. I can get the information about register usage of the device functions only defining them as global.

Do you have any suggestions? 

Thanks!