https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19276 Bug 19276 depends on bug 43136, which changed state.
Bug 43136 Summary: Excess copy-in/copy-out with character argument https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43136 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED