[fpc-devel] ARM/AARCH64 work

[J. Gareth Moreton]

Submitted a patch with the "magic division" and a second patch with a new bench test to showcase the 
improvements.  I hope it is to your satisfaction.

https://bugs.freepascal.org/view.php?id=38806

Gareth aka. Kit


On Mon 26/04/21 16:25 , "J. Gareth Moreton" gareth at moreton-family.com sent:
> I meant to say "I'm not sure" at the end there.  The joys of
> writing an e-mail on the phone!
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> Gareth aka. KIt
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> On Mon 26/04/21 15:14 , "J. Gareth Moreton via fpc-devel" fpc-devel at lists.freepascal.org sent:
> > Indeed. I'm reusing the code that generates 
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> > the magic constant for me and any additional 
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> > flags. I've also fixed the bug that caused 
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> > the failure in my test. Just doing some 
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> > final cheeks and improving my bench test.
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> > It might be possible to make more code cross 
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> > platform later on. I'mm not due.
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> > Gareth aka. Kit
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> > On Mon 26/04/21 17:26 , Florian Klämpfl via
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> > fpc-develfpc-devel at lists.freepascal.org 
> > sent:
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> > > > Am 26.04.2021 um 08:09 schrieb J.
> Gareth 
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> > Moreton
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> > > via fpc-devel :
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> > > >  and the other is implementing
> "magic
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> > > division" 
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> > > > where division by a constant is
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> > with a
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> > > multiplication.  
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> > > You are aware there is code for arm 32 bit 
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> > and e.g. x86 which can most
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> > > likely be reused/adapted? It might be even 
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> > that meanwhile somebody made a
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> > > generic implementation of it?
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> > ____________________________________________
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> > ___
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> > > fpc-devel maillist  -  fpc-
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> > de
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> > vel@
> lists.freepascal.org
> > > https://lists.freepascal.org/cgi-
> > bin/mailman/listinfo/fpc-devel
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> > _______________________________________________
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> > fpc-devel maillist  -  fpc-devel at lists.freepascal.org
> > https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel
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