Information about LTO

[Sjodin, Jan]

Hi I am new to GCC development and I have a few questions about LTO. 
What has been done since the last status report in January? I would 
also like to know what is most important to work on right now to make 
progress on LTO (e.g. type system, intermediate representation, 
reader/writer). What remaining work needs to be done to make LTO work 
for C? In the old status report a few things were mentioned: the front 
end was not complete, the type system was not being fully encoded and 
there are still some things that need to be explicitly represented in 
the IR.

Thanks,
Jan