On Tue, 19 Jun 2012, William J. Schmidt wrote: > On Tue, 2012-06-19 at 14:48 +0200, Richard Guenther wrote: > > On Tue, 19 Jun 2012, William J. Schmidt wrote: > > > > > I remember having this discussion, and I was looking for it to check on > > > the details, but I can't seem to find it either in my inbox or in the > > > archives. Can you please point me to that again? Sorry for the bother. > > > > It was in the "Correct cost model for strided loads" thread. > > Ah, right, thanks. I think it will be best to make that a separate > patch in the series. Like so: > > (1) Add calls to the new interface without disturbing existing logic; > modify the profitability algorithms to query the new model for inside > costs. Default algorithm for the model is to just sum costs as is done > today. > (1a) Split up the cost hooks (one for loads/stores with misalign parm, > one for vector_stmt with tree_code, etc.). > (x) Add heuristics to target models as desired. > (2) Handle the SLP ordering problem. > (3) Handle outside costs in the target model. > (4) Remove the now unnecessary cost fields and the calls that set them. > > I'll start work on this series of patches as I have time between other > projects.
Thanks! Richard.
