http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52911
--- Comment #8 from Mikael Pettersson <mikpe at it dot uu.se> 2013-01-21 17:28:19 UTC --- I can reproduce with a gcc-4.7-20130119 cross from x86_64-linux to ppc-linux, but not with gcc-4.8-20130120. So possibly fixed on trunk.