https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 92458, which changed state.
Bug 92458 Summary: Constraints do not work with precompiled headers https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92458 What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED