[m68k] Add 'R' constraint for ColdFire V4 mov3q.l instruction

[Andreas Schwab]

Peter Barada <peter@the-baradas.com> writes:

> I think that should be a different patch than this one in order to
> keep the changes seperate.

Agreed.

> Since gentype complains about 'I' all by itself, either I can rewrite
> this RTL as part of this patch, or apply the patch to get the 'R'
> constraint, and then submit another patch to fix.

I think the constraint letter should be left out at all.  Getting that
installed first is probably easiest.

Andreas.

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Andreas Schwab, SuSE Labs, schwab@suse.de
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