http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50103
Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2011-08-17 Ever Confirmed|0 |1 --- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-08-17 08:15:49 UTC --- As you are experiencing this when building stage2 it might be that xlc 11.1.0.0 miscompiles the stage1 compiler. Please try setting STAGE1_CFLAGS to some option that disables any optimization for xlc.