------- Comment #11 from vmakarov at redhat dot com 2010-02-10 17:15 -------
(In reply to comment #8) > > Thanks, we should see if this solves the AMMP problem in a day or two. > Are you going to look at the related PR42961? Without the regmove hunk > it does not happen at AMMP but it likely happens elsewhere. I did some > work on this years back on old RA so I can play with it too. > (Simple fix would be to add ? penalizers to integer variant of FP moves, > but I would like to see some solution where RA actually can use integers > for mem->mem copies) I am working on IRA without usage of cover classes. For example, IRA could assign integer or floating point register for mem->mem copies whatever is possible and whatever is more profitable. This code is big and not ready yet. There are a lot of performance issues (besides IRA speed issues which is a consequence of dealing with more classes). I am trying to solve the issues. But if the code is ok, it probably will solve the problem. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42973
