I would like to get some more information about pr32374. I do not know what virtual_stack_vars are and there is no documentation in the doc directory.
1) What are these? 2) Why are they uninitialized? 3) If they really are uninitialized, why is it a problem to assign zero to them. 4) If they are not uninitialized, where is the initialization code? Why does df not see it? 5) How can I tell if a reg is a virtual_stack_reg?
