https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65964 Bug 65964 depends on bug 65958, which changed state.
Bug 65958 Summary: -fstack-check breaks alloca on architectures using generic stack checking https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65958 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED