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Re: Optimize zero extend for EM64T
- From: Jan Hubicka <hubicka at ucw dot cz>
- To: "H. J. Lu" <hjl at lucon dot org>
- Cc: gcc at gcc dot gnu dot org
- Date: Tue, 17 Aug 2004 11:05:25 +0200
- Subject: Re: Optimize zero extend for EM64T
- References: <20040816222747.GA25690@lucon.org>
> Gcc chooses mozbq when the source is memory. But I was told that EM64T
> preferred movzbl over mozbq. Does it make a difference for AMD?
No, I would guess was a thinko - I was just thinking of storing to
memory when doning that pattern...
Honza
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>
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> H.J.