https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86772 Bug 86772 depends on bug 86951, which changed state.
Bug 86951 Summary: arm speculation barrier incompatible with ARMv6 or earlier https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86951 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED