http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56068
--- Comment #3 from Jason Pyeron <jpyeron at pdinc dot us> 2013-01-21 17:12:15 UTC --- mockbuild@centos6-64bit-builder ~/build/BUILD/tmp (mock-chroot) $ cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 13 model name : QEMU Virtual CPU version (cpu64-rhel6) stepping : 3 cpu MHz : 2194.498 cache size : 512 KB fpu : yes fpu_exception : yes cpuid level : 4 wp : yes flags : fpu de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx lm up unfair_spinlock pni cx16 hypervisor lahf_lm abm sse4a bogomips : 4388.99 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: