At revision 151371 I get a bootstrap comparison failure on i586 with the default compiler (--enable-checking=yes):
Comparing stages 2 and 3 warning: gcc/cc1-checksum.o differs warning: gcc/cc1plus-checksum.o differs Bootstrap comparison failure! gcc/cfgloopmanip.o differs gcc/ada/sem_res.o differs gcc/ada/checks.o differs gcc/ada/sem_dist.o differs gcc/ada/exp_ch9.o differs gcc/ada/exp_util.o differs gcc/ada/exp_dist.o differs make[2]: *** [compare] Error 1 make[2]: Leaving directory `/home/eric/build/gcc/native32' make[1]: *** [stage3-bubble] Error 2 make[1]: Leaving directory `/home/eric/build/gcc/native32' make: *** [all] Error 2 Very likely VTA again. -- Summary: [4.5 regression] bootstrap comparison failure Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: critical Priority: P3 Component: bootstrap AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: ebotcazou at gcc dot gnu dot org GCC build triplet: i586-*-linux GCC host triplet: i586-*-linux GCC target triplet: i586-*-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41241