http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47010
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-12-28 14:50:51 UTC --- I think it sets up a frame to have possible spills of xmm registers land in aligned stack slots.
- [Bug rtl-optimization/47010] New: Missed optimi... schnetter at gmail dot com
- [Bug rtl-optimization/47010] Missed optimi... rguenth at gcc dot gnu.org
