https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64941
Mikael Pettersson <mikpelinux at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mikpelinux at gmail dot com --- Comment #4 from Mikael Pettersson <mikpelinux at gmail dot com> --- I can't reproduce on Ivy Bridge, but the OP's machine is Haswell so -march=native -mtune=native may cause different behaviour there. Could someone try this on Haswell?