Re: hwcap supporting architectures?
On Sun, Dec 26, 2004 at 07:07:07AM +0100, Bernd Eckenfels wrote:
> > Since the optimized i386 library does use MMX (it does perform
> > runtime checking) and is compiled with -mcpu=i686 [0] (gcc doesn't
> > seem to be emitting CMOVs though) I think the proper place is
> > /usr/lib/i686/mmx/cmov
>
> If it does runtime checking you should not store it in an mmx hwcap
> dir, because that way it will never be called on non-mmx systems.
A library without MMX and compiled for i386 (or i486, whatever the gcc
default on i386 is) is also provided. The optimized library is
compiled with -mfpmath=sse and contains the hand-written MMX.
Marcelo
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