https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947 Bug 53947 depends on bug 85918, which changed state.
Bug 85918 Summary: Conversions to/from [unsigned] long long are not vectorized for AVX512DQ target https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85918 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED