On Sun, Mar 23, 2003 at 06:43:16PM +0100, Michael Nottebrock wrote:
> 
> Just out of curiousity, have you tried using -mfpmath=sse? I remember someone 
> on this list claiming that the SSE fpa-code works much better than the i387 
> code which is used by default (even with -march=pentium4).
>

I don't know if SSE code runs faster, but it defitely seems to fix bad
code generation when optimizing for athlon-xp architecture.   For
example, -O2 -march=athlon-xp produces broken code, whereas -O2
-march=athlon-xp -mfpmath=sse produces programs which work.

Bruce Cran

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