http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50904
--- Comment #14 from Venkataramanan Kumar <venkataramanan.kumar.gnu at gmail dot com> 2011-11-11 22:58:01 UTC --- I ran polyhedron benchmarks with -march=bdver1 and -Ofast. Induct run time was brought down to 53.45 sec from 70.93 sec. Other benchmarks are not affected much. I am planning to test on older machine.