https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79538
Qing Zhao <qing.zhao at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED --- Comment #5 from Qing Zhao <qing.zhao at oracle dot com> --- this bug has been fixed in upstream. and is decided not back port to Gcc 7. so close it as resolved