Useless clobber?

[John Wehle]

>> (define_insn ""
>>   [(set (match_operand:SI 0 "register_operand" "=d")
>>         (mult:SI
>>           (zero_extend:SI
>>             (match_operand:HI 1 "register_operand" "d"))
>>           (zero_extend:SI
>>             (match_operand 2 "register_operand" "d"))))
>>    ( clobber (match_operand:SI 3 "register_operand" "d"))]
>>   ""
>>   "impyuu\\t%1,%2,%0")
>
> BTW, in the case I was refering to the clobber is in parallel with
> the set.  The pattern you've presented is a bit odd since it doesn't
> use a parallel.

Sigh, I spoke too soon.  It isn't odd at all.  You presented a define_insn
which implies a parallel any time more then one element is present.  I
was looking at (and thinking) define_expand which requires the parallel to
be explicitly coded.

-- John
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