https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68321 Bug 68321 depends on bug 68194, which changed state.
Bug 68194 Summary: [4.9/5/6 Regression] wrong code at -O2 and -O3 on x86_64-linux-gnu https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68194 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED