On Aug 27, 2007, at 10:46 AM, Dan Gohman wrote: >> This is nifty, but shouldn't this be done at the LLVM IR level? I >> can't think of cases where lowering would create new memmove calls. > > I'm not aware of any cases where memmove vs. memcpy matters before > codegen currently. If it were done at the LLVM IR level, would it be > too trivial to be in a pass by itself, or would you want to add it, > along with an addRequired<AliasAnalysis>, to some existing pass?
I'm not really sure that there is any place that is truly natural. I suspect that the best place would be the new GVN pass that Owen should be turning on "real soon now", as it already uses alias info. Owen, how's that going? :) -Chris _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
