[graphite] Enable in the branch -fgraphite-identity on -O2 or higher

Sebastian Pop sebpop@gmail.com
Thu Jan 8 01:58:00 GMT 2009

>    I recall some comments (from Tobias?) last year to the effect that
> graphite currently wasn't looking at as many loops as it might. This wasn't
> changed due to the number of outstanding bugs. Now that -fgraphite-identity
> seems pretty well behaved might these other levels of loops be added into
> those that graphite works with (at least for graphite branch)?

Yes, this is an improvement tracked by http://gcc.gnu.org/PR37705 We
need to remove the limit_scop function.  Low priority, but doable.


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