https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105073 Bug 105073 depends on bug 105033, which changed state.
Bug 105033 Summary: Suboptimal for vec_concat lower halves of two vectors. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105033 What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED