int64-elements64-bit integer elements have no kernel

Reported by --explain after a verdict.

mettle explain int64-elements

The loop loads or stores int64/uint64. There is no 64-bit integer kernel yet, so the loop stays scalar.

Fix: use int32 where the range allows it. Four lanes per vector become eight. Where the values genuinely need 64 bits, this loop is at its floor for now.

Related

• call-in-bodyThe loop body calls a function
• extern-call-in-bodyThe loop body calls an external function
• indirect-callThe loop body calls through a function pointer
• alloc-in-bodyThe loop body allocates
• inline-asmThe loop body contains inline assembly
• control-flowThe loop body branches
• early-exitThe loop can leave before its trip count
• int16-elements16-bit integer elements have no kernel