On Thu, Apr 05, 2007 at 09:54:08AM -0300, [EMAIL PROTECTED] wrote: > Hi All, > > Is it always safe to use "-funroll-loops" as a flag to > /etc/make.conf ? Does it realy improve the compiled programs? > > When should I avoid to use it?
If you are using gcc42 -funroll-loops can be a win. gcc3.x is less savvy about knowing the limits of complexity to unroll which loops. I'm doing some tests with gcc34 (default) and gcc42. The latter can yield significant improvements iff you know what you're doing. It's no magic bullet. gary > > - Marcelo > > _______________________________________________ > email@example.com mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "[EMAIL PROTECTED]" -- Gary Kline [EMAIL PROTECTED] www.thought.org Public Service Unix _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"