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Re: Useless clobber?
- To: Virgil dot Palanciuc at cs dot pub dot ro
- Subject: Re: Useless clobber?
- From: John Wehle <john at feith dot com>
- Date: Tue, 11 Apr 2000 16:09:14 -0400 (EDT)
- Cc: gcc at gcc dot gnu dot org
> (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.
-- John
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