https://gcc.gnu.org/bugzilla/show_bug.cgi?id=30334 Bug 30334 depends on bug 29465, which changed state.
Bug 29465 Summary: warning for overlapping memcpy() https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29465 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |DUPLICATE