Sean D'Epagnier schrieb:
Hi,
On 4/20/09, Georg-Johann Lay a...@gjlay.de wrote:
Hi Sean,
as far as I understand, your tool runs on asm code, i.e. you map short
sequences of asm instructions (which must not contain code labels) to
other instruction sequences.
Right, and it's far from
On Sat, 18 Apr 2009, Sean D'Epagnier wrote:
http://www.avrfreaks.net/index.php?name=PNphpBB2file=viewtopict=77805
This is cool, though I largely agree with the message in this thread which
says that most of the time, poor avr-gcc output should simply be filed as
bugs in the AVR backend.
Sean is your code available? A quick scan of the AVR Freaks thread didn't
show it. Thanks,
John Regehr
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: [avr-gcc-list] avr superoptimizer
Many benefits of something like Diablo come from optimizing the
application and all of its libraries together. Someone
should figure out
how to get this kind of benefit for AVR. I have spent a
bunch of time
looking at avr-gcc output over the past
: [avr-gcc-list] avr superoptimizer
Sean is your code available? A quick scan of the AVR Freaks
thread didn't
show it. Thanks,
You have to login to AVR Freaks in order to see files that are posted, which
means, of course, that you have to have a login ID
That's why I'm (desperately) hoping that the LTO project in GCC will eventually
help in this area.
http://gcc.gnu.org/wiki/LinkTimeOptimization
Alternatively, an LLVM backend for AVR would give this capability
(approximately) for free.
John
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From:
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[mailto:avr-gcc-list-bounces+eric.weddington=atmel@nongnu.
org] On Behalf Of John Regehr
Sent: Monday, April 20, 2009 2:04 PM
To: avr-gcc-list@nongnu.org
Subject: RE: [avr-gcc-list] avr
John Regehr wrote:
That's why I'm (desperately) hoping that the LTO project in GCC will
eventually help in this area.
http://gcc.gnu.org/wiki/LinkTimeOptimization
Alternatively, an LLVM backend for AVR would give this capability
(approximately) for free.
I've started implementing an LLVM
Sean D'Epagnier schrieb:
Hi,
I posted a forum topic on a new avr superoptimizer I'm working on.
It was noted that some people on this mailing list might be interested
but don't view the forum regularly.
The forum topic also contains the source code which you can download:
: [avr-gcc-list] avr superoptimizer
Sean the limit case of what you are working on is something
like Diablo,
you should read some of their papers:
http://diablo.elis.ugent.be/publications
It is an excellent tool.
Unfortunately diablo looks a bit stale. Their latest release was over 3
Hi,
On 4/20/09, Georg-Johann Lay a...@gjlay.de wrote:
Hi Sean,
as far as I understand, your tool runs on asm code, i.e. you map short
sequences of asm instructions (which must not contain code labels) to
other instruction sequences.
Right, and it's far from complete. In theory it could
On Mon, 20 Apr 2009, Weddington, Eric wrote:
Unfortunately diablo looks a bit stale. Their latest release was over 3
years ago (Feb. 2006), and their required patches are for binutils 2.13
and gcc 3.3.2. :-P
Is this project even a going concern anymore?
I don't think so. And anyway I think
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