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re: Performance comparison of gcc releases
- From: Dan Kegel <dank at kegel dot com>
- To: Ronny Peine <RonnyPeine at gmx dot de>, gcc at gcc dot gnu dot org
- Date: Fri, 16 Dec 2005 10:31:49 -0800
- Subject: re: Performance comparison of gcc releases
Ronny Peine wrote:
>> > -ftree-loop-linear is removed from the testingflags in gcc-4.0.2 because
>> > it leads to an endless loop in neural net in nbench.
>>
>> Could you fill a bug report for this one?
>
>Done.
Your PR is a bit short on details. For instance, it'd be nice to
include a link to the source for nbench, so people don't have
to guess what version you're using. Was it
http://www.tux.org/~mayer/linux/nbench-byte-2.2.2.tar.gz
?
It'd be even more helpful if you included a recipe a sleepy person
could use to reproduce the problem. In this case,
something like
wget http://www.tux.org/~mayer/linux/nbench-byte-2.2.2.tar.gz
tar -xzvf nbench-byte-2.2.2.tar.gz
cd nbench-byte-2.2.2
make CC=gcc-4.0.1 CFLAGS="-ftree-loop-linear"
Unfortunately, I couldn't reproduce your problem with that command.
Can you give me any tips?
Finally, it's helpful when replying to the list about filing a PR
to include the PR number or a link to the PR.
The shortest link is just gcc.gnu.org/PR%d, e.g.
http://gcc.gnu.org/PR25449
- Dan
--
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