Kenneth Zadeck <[EMAIL PROTECTED]> writes: > There are a lot of ways to handle this problem: > 1) We could do a pass that breaks multiword sets into individual regs if > some of those regs are dead. I guess the downside of this is that such > insns may not match some patterns anymore. > > 2) We could turn off local. I was planning on testing this anyway > because i want to see if local, at this point, is just making global do > a bad job. However, my hope is that global or the new allocator from > vlad is smart enough to properly handle the case where some parts of a > multiword set are dead. > > 3) We could fix global/reload to not be stupid. Because, of course, > you should be able to put something in that unused regs slot. > > Any comments.
I think the first step is to figure out what is going wrong. I don't see any obvious reason why global or reload should fail in this way, as long as the multi-word set is properly marked as such at the point of the set itself. Ian
