Maybe we can pass a scalar mode to the hook when we ask for SCATTER/GATHER? That might need fixups in other targets of course, but it would make it clear what we're asking for?
How about an additional argument bool gather_scatter to make it more explicit?
Then we could just if (gather_scatter) return true; for every target but riscv. I guess we're lucky that powerpc doesn't have gathers, though ;) -- Regards Robin
