Re: [patch] arm,rx: don't ICE on naked functions with local vars

[DJ Delorie]

Naked is related to TARGET_ALLOCATE_STACK_SLOTS_FOR_ARGS - ARM and RX
set the latter based on the former, and nobody else uses that target
hook.  So, naked functions don't have stack slots for args.  Without
stack slots, args can't be assigned to memory locations - even if
they're TREE_ADDRESSABLE.