Getting local variable from an artificial variable

[Swaroop Joshi <swaroop@xxxxxxxxxxxxxx>]

Hi,

C code:
...
p = &r;
*q = r;
...

produces GIMPLE:
...
p = &r;
r.0 = r;
*q = r.0;
...

Now I want to extract tree r from r.0.
How can I do this ?

Thanks,
Swaroop.