https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 84551, which changed state.
Bug 84551 Summary: [8 Regression] [concepts] Compiler options "-O -g" cause valid code to be rejected https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84551 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED
