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Re: RFC: MIPS clones without lwl/lwr/swl/swr
On Mon, 16 May 2005, Mark Mitchell wrote:
> > -m{,no-}patent-free is ok IMHO. For convenience there should also be a
> > -march=rtl8181 switch which implies the patent free mode.
>
> Chiming in randomly, I actually think an option focusing on the patented-ness
> of these instructions is not the best choice. What if there are more some
> day, or the patent gets invalidated, or the user doesn't know about the
> patent? How about -mno-<something>-load-store?
Don't forget the problem of system controllers required to support
partial transfers for these instructions to work, which I've mentioned and
which actually exists -- unfortunately there are such implementations out
there. Using an option called "-mpatent-free" as a workaround for that
seems rather counter-intuitive...
Maciej