http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58256
--- Comment #9 from Chen Gang <gang.chen at asianux dot com> --- Created attachment 30825 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30825&action=edit Issue is within xgcc, can exclude cc1 by comparing the summary log between gcc-4.8.0 and gcc-4.9.0. By comparing the summary log between gcc-4.8.0 and gcc-4.9.0, the issue is within xgcc, we can exclude cc1. The attachment contents 3 files. err.diff: the gcc-4.9.0 summary log. correct.diff: the gcc-4.8.0 summary log. info.diff: my modification for gcc-4.9.0, so can print the related summary log (the same modification for gcc-4.8.0) I will continue to analyzing the details within xgcc, and also print more related varaibles for analyzing. Welcome any additional suggestions and completions, thanks.