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...th the patch. I think this is orthogonal. If you happen to merge globals they will have the same base address (i.e., the same pseudo instruction) but different offsets. CSE and such will work like a charm for the pseudos. Assuming you emit the right instructions at isel time, you will create ADRP, LOADGot, or ADD with symbols. Since you do not know anything on the symbols, CSE will match only the ones that are identical. You will have a finer granularity to do CSE, but I am not sure it will help that much. On the other hand, you lose the rematerialization capability, because that feature can only ha...

...base address and one displacement. I believe that if we fix that both the LOHs and the global merge become orthogonal. My guess is that we should be less aggressive at folding offset if there are several uses. > > Assuming you emit the right instructions at isel time, you will create ADRP, LOADGot, or ADD with symbols. Since you do not know anything on the symbols, CSE will match only the ones that are identical. > > This is correct. > > You will have a finer granularity to do CSE, but I am not sure it will help that much. > > The 'CSE' here is a term only rathe...

This sounds reasonable. Thanks, all. > - CSE of ADRP optimization (Jiangning) Quentin may have some input here. He’s done quite a lot of optimizations for ADRP sequences. -Jim On Apr 12, 2014, at 12:08 AM, Tim Northover <t.p.northover at gmail.com> wrote: > Hi again, > > Having heard no howls of protest, those of us remaining on the > Wednesday decided to get down to

On Fri, Feb 27, 2015 at 2:13 PM Ahmed Bougacha <ahmed.bougacha at gmail.com> wrote: > On Fri, Feb 27, 2015 at 1:42 PM, Eric Christopher <echristo at gmail.com> > wrote: > > > > > > On Fri, Feb 27, 2015 at 1:38 PM Ahmed Bougacha <ahmed.bougacha at gmail.com > > > > wrote: > >> > >> On Thu, Feb 26, 2015 at 2:33 AM, Kristof Beyls