https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68328
--- Comment #3 from Mikael Pettersson <mikpelinux at gmail dot com> --- I'm on Fedora 20 / x86_64 (Ivy Bridge i7-3770K) w/ the 4.3 Linux kernel. I've tried various combinations of bootstrap compiler (system gcc-4.8.3 or my own gcc-4.9.3 + patches), support libraries (system gmp/mpfr/mpc/cloog/isl or my own), and w/ or w/o cloog/isl. No combination triggered the wrong-code you see. Could someone else please have a go at reproducing this?