https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103216 Bug 103216 depends on bug 103218, which changed state.
Bug 103218 Summary: (a < 0) << signbit is not always optimized to a & signbitmask at the gimple level https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103218 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED