http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49851
--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-07-26 13:59:26 UTC --- AIR spends 86% of its time in DERIV[XY] (for ICC), 78% of its time there for GCC. The performance difference also reproduces when not inlining DERIV[XY] at all (though it's slightly less of a difference - GCC doesn't care).
