[Bug middle-end/40029] [4.5 Regression] Big degradation on swim/mgrid on powerpc 32/64 after alias improvement merge (gcc r145494)

[luisgpm at linux dot vnet dot ibm dot com]

------- Comment #5 from luisgpm at linux dot vnet dot ibm dot com  2009-05-29 19:52 -------
>From predictive commoning we gain a bit more performance, probably due to the
bigger unrolling factor.

Any chance of the unrolling taking place while still using PRE?

Thanks,
Luis


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40029