RX: 4.5 branch: Fix alignment and addressing issues.

[Mike Stump]

On Mar 17, 2011, at 5:31 AM, Nick Clifton wrote:
>> You can set up the correct length even without using separate patterns.
> 
> The problem is

And why is that a problem?  You get to write arbitrarily complex C code that can depend upon insn and operands.  I presume that you can do that.

See:

   (set (attr "length") (symbol_ref "arm_attr_length_move_neon (insn)"))])

from arm, for example.