Hi, On Thu, 30 Aug 2007, Kenneth Zadeck wrote:
> Michael and Bernd, > > I you look at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33224 you will > see that this bug has nothing to do with the type of def. It is pilot > error on the author of the loop unrolling code. They are looking in the > wrong places in the bitvectors. Yes, but I wasn't talking about the specific bug in loop-iv, sorry if that didn't become clear. I was specifically reacting to your claim that multiple partial defs might reach one use even if one dominates the other and that this is the correct thing to happen. IMO it is not and it would be a mistake if df*.c let this happen. I tried to explain why I think so, and again wasn't refering in any way to the loop-iv bug. Ciao, Michael.
