[FFmpeg-devel] Fix VP3 IDCT on Win64

Loren Merritt lorenm
Thu Aug 26 13:05:30 CEST 2010

On Thu, 26 Aug 2010, Reimar D?ffinger wrote:
> On Wed, Aug 25, 2010 at 08:43:25PM -0400, Ronald S. Bultje wrote:
>> Those will stay inline of course. If an issue arises where we really
>> need multiple (>6) XMM registers in inline functions (which I can
>> honestly not imagine), then we'll think about a solution then and
>> there.
> The solution is easy: only add the clobbers for compilers where they
> are supported (I assume this was the issue on Win32/BSD? You never
> said _what_ the problem was). This can be tested in configure.
> And you'll have to specify the clobbers for inline functions even
> for a single XMM register and even for Linux, it's just unreasonable
> to hope that the compiler will never place some float stuff in a
> bad location, particularly with global optimization enabled.

Do you plan to add an emms at the end of every mmx function?

--Loren Merritt

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