https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63178
--- Comment #5 from Dima Kogan <gccbugs at dima dot secretsauce.net> --- Hi. I cherry-picked the commit you mentioned, rebuilt gcc, and the bug was not resolved. Just in case I did something wrong in that process, I waited for Debian to update their package. This just happened, and I updated. I'm now using gcc4.9 version 4.9.1-13 from Debian/unstable. The Debian changelog says this is using r215008: http://metadata.ftp-master.debian.org/changelogs//main/g/gcc-4.9/gcc-4.9_4.9.1-13_changelog As before, the bug is unresolved. Thanks.