[fpc-devel] Kit's ambitions!
J. Gareth Moreton
gareth at moreton-family.com
Thu Jun 14 22:06:22 CEST 2018
Thanks. I'll have a study of this and potentially move my initial deep
optimisation component to this stage.
I've made some more peephole optimisations in the meantime, but I'm going
to hold off on posting them because they're starting to conflict with my
other submissions. Besides, I've given you far too many patches already!
On Thu 14/06/18 21:58 , Florian Klämpfl florian at freepascal.org sent:
Am 13.06.2018 um 20:50 schrieb J. Gareth Moreton:
> I haven't fully uncovered the secrets of
> the compiler yet, but I did notice "pre-
> peephole pass" under x86, but I think the
> only functions it touched was one of the
> bit shifts. Does this occur before
> register allocation or was it just
> something that had to be done before Pass
It is only before pass 1.
I attached a patch I once started which shows the idea.
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