Yip, picked that up after I sent it.  Thanks.

2009/5/19 Jim Wilson <wil...@codesourcery.com>:
> On Mon, 2009-05-18 at 19:58 +1200, Michael Hope wrote:
>>   (set (match_operand:SI 3 "register_operand" "=1")
>>       (not:SI (xor:SI (match_dup 1) (match_dup 2))))]
>
> not xor is aka xnor.  You probably want this without the two "not"
> operations.
>
> Jim
>
>
>

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