Re: [avr-llvm-devel] Important stuff

[Borja F. <bor...@gm...>]

I'm currently working with the PBQP allocator to add the pairing
constraints. It can manage ordered pairs, for it, we need to tell if a
virtual register is mapped to the lo or the hi part of the data to produce
the correct code. John, now that atleast the pairing stuff is a bit clearer
for the moment, we have to look at inserting 16 bit instructions like movw
and adiw/sbiw. You can look at the pass i wrote to replace moves with movws,
ideally i would like LLVM to do it automatically but i dont know if this is
possible, so i guess this is what we need to investigate before proceeding
into other things.