[Bug middle-end/44576] [4.5/4.6 Regression] testsuite/gfortran.dg/zero_sized_1.f90 with huge compile time on prefetching + peeling

[changpeng dot fang at amd dot com]

------- Comment #19 from changpeng dot fang at amd dot com  2010-07-07 19:00 -------
(In reply to comment #18)
> Changpeng, should this PR be closed now?
> 

No. I am still looking at the dependence computation cost. I just found the
most of the time is spent in memory allocation and freeing of the data
dependence relatiuon structure.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44576