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Re: PATCH: Properly support SSE2 intrinsics


On Wed, Jun 04, 2003 at 05:43:43PM -0700, Richard Henderson wrote:
> On Wed, Jun 04, 2003 at 05:38:42PM -0700, H. J. Lu wrote:
> > All SSE2 intrinsics are moved into emmintrin.h. That line is for gcc
> > backward source compatibility only. It does look odd. It works since
> > both emmintrin.h and xmmintrin.h are protected by #ifndef/#define.
> 
> That's not the point.  What, if anything, is left in Intel's xmmintrin.h?
> If nothing, then I'd think that backward source compatibility is achieved
> by reducing xmmintrin.h to just one #include and nothing else.
> 

xmmintrin.h has SSE intrinsics and emmintrin.h has SSE2 intrinsics.


H.J.


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