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Re: [patch] require sse3 for fisttp
- From: Andrew Pinski <pinskia at physics dot uc dot edu>
- To: Eric Christopher <echristo at apple dot com>
- Cc: Uros Bizjak <ubizjak at gmail dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Sat, 16 Sep 2006 17:33:38 -0700
- Subject: Re: [patch] require sse3 for fisttp
- References: <450BC7AD.7060900@gmail.com> <450C738B.3060504@apple.com>
On Sat, 2006-09-16 at 14:58 -0700, Eric Christopher wrote:
>
> No, this isn't OK if he has a core that is very like nocona, but
> doesn't
> have the sse3 instruction set. This will cause an invalid instruction
> error.
The user should not have used -march=nocona but instead -mtune=nocona
if he wants the tuning but not the architecture features that the nocona
core has.
-- Pinski