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Re: An unusual Performance approach using Synthetic registers, and a request for guidance.

From: Andy Walker <ja_walker at earthlink dot net>
To: Alexandre Oliva <aoliva at redhat dot com>,"Michael S. Zick" <mszick at goquest dot com>
Cc: "GCC Developer's List" <gcc at gcc dot gnu dot org>
Date: Sat, 28 Dec 2002 23:36:58 -0600
Subject: Re: An unusual Performance approach using Synthetic registers, and a request for guidance.
References: <E18RppA-0004lZ-00@albatross.prod.itd.earthlink.net> <02122710093100.00766@localhost.localdomain> <orhecyairg.fsf@free.redhat.lsd.ic.unicamp.br>

On Friday 27 December 2002 10:07 pm, Alexandre Oliva wrote:
> On Dec 27, 2002, "Michael S. Zick" <mszick@goquest.com> wrote:
> > So, I think (personal opinion here), using the %EBX register as the base
> > (frame pointer) of the synthetic register frames should be your first
> > choice.
>
> 'cept %EBX is used as the PIC base register, and you can't really
> remap that to a virtual register unless you change PLT entries.

Thank you, Alexandre.  

This is why I changed my mind and used ecx instead of ebx.

Andy

References:
- An unusual Performance approach using Synthetic registers, and a request for guidance.
  - From: Andy Walker
- Re: An unusual Performance approach using Synthetic registers, and a request for guidance.
  - From: Michael S. Zick
- Re: An unusual Performance approach using Synthetic registers, and a request for guidance.
  - From: Alexandre Oliva

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