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Re: SSE conversion optimization
- From: "H.J. Lu" <hjl at lucon dot org>
- To: Jan Hubicka <jh at suse dot cz>
- Cc: gcc-patches at gcc dot gnu dot org, dwarak dot rajagopal at amd dot com, hongjiu dot lu at intel dot com
- Date: Sat, 8 Sep 2007 16:17:54 -0700
- Subject: Re: SSE conversion optimization
- References: <20070908220228.GH10905@kam.mff.cuni.cz>
On Sun, Sep 09, 2007 at 12:02:28AM +0200, Jan Hubicka wrote:
> Hi,
> Amdfam10 preffers doing packed conversions destinating SSE register rather than scalar.
> This means basically following replacments:
>
> - cvtsi2sd -> movd + cvtdq2pd
> - cvtsi2ss -> movd + cvtdq2ps
Can you disable them for -mtune=generic if an extra pair of
memory load/store is added?
Thanks.
H.J.