Re: Need help creating a small test case for g++ 4.0.0 bug

["Paul C. Leopardi" <leopardi at bigpond dot net dot au>]

Hi Dan,
Reply below.
Best regards
On Thu, 4 Aug 2005 02:05, Dan Kegel wrote:
> "Paul C. Leopardi" <leopardi@bigpond.net.au> wrote:
>  > So I seem to be left with a large ( >2.5MB ) preprocessed source file.
>  > Should I try to report the bug using this large file as a test case?
>
> Sure.  But you might want to try using an automated tool
> to reduce the test case first.  There's one called delta
> (or maybe there are several by that name, I'm not sure)
> that can do it.  I haven't tried them myself yet, but see:
>
> Original implementation:
> http://www.st.cs.uni-sb.de/dd/
>   
> http://programming.newsforge.com/article.pl?sid=05/06/30/1549248&from=rss
> http://www.stanford.edu/class/cs295/asgns/asgn1/asgn.pdf
> 2nd implementation?:
> http://www.cs.berkeley.edu/~dsw/

I used Daniel S. Wilkerson's delta from http://www.cs.berkeley.edu/~dsw/ and 
succeeded in reducing my test case enough to file bug 23599.

[4.0 Regression] Flag -fstrict-aliasing corrupts iterators
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23599

Thanks!