[Bug middle-end/40979] induct benchmark 60% slower when compiled with -fgraphite-identity

[sebpop at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40979

--- Comment #16 from sebpop at gmail dot com <sebpop at gmail dot com> 
2011-02-01 16:59:03 UTC ---
> It's unfortunate that graphite inserts arrays of size 1 instead of scalar
> (memory) vars.

That could be easily fixed.

graphite can also use the original data reference to write the reduction in,
and that cannot be replaced by a scalar memory variable.