http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50083
--- Comment #6 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> 2011-08-25 15:29:38 UTC --- I can now also reproduce the failure on x86_64-unknown-linux-gnu: cc1 -quiet -O2 -m32 iround.i -muclibc With the default (-mglibc), it doesn't occur. Rainer