[Pixman] [PATCH 1/3] autoconf: add MMX EXT support check

Søren Sandmann sandmann at cs.au.dk
Sun Feb 19 14:23:13 PST 2012

Matt Turner <mattst88 at gmail.com> writes:

>> Are there any interesting chips without MMX extensions? Pentium MMX
>> definitely is not interesting. If there aren't, I'd rather just get rid
>> of the ifdefs and unconditionally require MMX-ext to be present.
> Not really, but it doesn't seem to be much code at all to support
> MMX/nonEXT. Either way is okay with me.

Then let's delete it. I prefer not having code around that nobody will
actually run.

> When you compile xmmintrin.h with #define __SSE__ but without -msse,
> you get lots of errors about converting between vector types, so I
> don't think it works.
> I wound up just duplicating the two _mm_* functions the _MM_SHUFFLE.

Fine with me.


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