outgoing_args_size and pretend_args_size

[Paulo J. Matos]

Hi,

I am finding slightly confusing the difference between 
outgoing_args_size and pretend_args_size.

I think I understand pretend_args_size, at least on the specific case of 
my port. The first two words of arguments go into two register the 
remaining goes into the stack. However, if the first argument is one 
word of size and the second two words of size, the second argument is 
split between register and stack and pretend_args_size is 1.

However, I am slightly unsure about outgoing_args_size. It mentions 
outgoing_args but I don't really know if it is what I think it is.

If I write:
void foo(int *x);

is x considered an outgoing arg?

Can someone try to explain the difference between these?

Cheers,

-- 
PMatos