Hello, > > Steven Bosscher <[EMAIL PROTECTED]>: > > > > > > > > What happens if you use the memory address unrolling > > patch, turn on > > > -fweb, and set the unrolling parameters properly? > > > > > > > The memory address unrolling patch can't work on IA- > > 64, > > Ah, no base+offset. It could be made to work with a little > work though. The IV splitting needs to be taught about GIVs, > and when that is in place, it should work, right? > (IMHO the current RTL IV analysis is not very nice to work > with, we could look into improving that first...)
what problems do you have concretely in mind? > On the other hand, we may not even need it if the RTL unroller > will be replaced by the tree one. I don't know what Zdenek's > plans are about that, or if this is a wise thing to do at all. I don't think it is the case; as far as I know, it is recommended to do non-specific unrolling just before or during scheduling. (By "non-specific" I mean unrolling the loops without any other reason other than just getting them unrolled). Zdenek
