http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51298
--- Comment #5 from Joost VandeVondele <Joost.VandeVondele at mat dot ethz.ch> 2011-12-15 09:44:46 UTC --- similarly, does this only affect power7, or potentially also other targets such as x86_64 (interlagos?)