[Bug middle-end/67754] [graphite] Many testsuite failures

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67754

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Sebastian Pop from comment #2)
> We diffed the output of -fdump-tree-graphite-all for interchange-1.c and the
> problem seems to be related to the ISL scheduler: I would highly recommend
> that people stop using outdated ISL versions.
> 
> with ISL 0.15, the code generated looks like this:

Should we require ISL 0.15 for trunk?