Vladimir N Makarov <vmaka...@redhat.com> writes: > On 09/06/2016 11:22 AM, Matthew Fortune wrote: > > There is an implementation that optimises a single set but not one for > > a REG_EQUAL. Do you have any recollection of this code and do you > > think there was a reason you didn't implement the REG_EQUAL case? > > Either way any advice on my approach is welcome. > Matt, sorry for delay with the answer. I had a long vacation. > > I did not write the code. I mostly took it from the old register > allocator practically without any changes. > Looking at your prototype patch, I think you are doing an optimization > which can be important for many targets. Moreover, the optimization > probably will be frequently applied for these targets. > > I believe you should produce a final patch, test it well and submit it. > > Thank you for finding the optimization opportunity and working on > implementing it.
Thanks, I'll keep working on it and get a patch submitted. It may take a little while but it will get done. Matthew
