[FFmpeg-devel] [RFC] clobbers for XMM registers

[Michael Niedermayer]

On Tue, Sep 28, 2010 at 01:51:33AM +0200, Michael Niedermayer wrote:
> On Sat, May 29, 2010 at 08:27:58PM +0200, Reimar D?ffinger wrote:
> > Hello,
> > this is not suitable by far (among other things, ugly parts, split asm code
> > where a clobber is likely to introduce bugs, only tested to compile,
> 
> > did not find a nice "dummy" clobber constraint - particularly important since
> 
> try "%esp" ;)
> 
> 
> > I suspect older gccs won't accept %xmm clobbers, ...).
> 
> the oldest i have here is 3.3 and it supports it

has someone tested xmm clobbers on fate alraedy?
if not i think we should commit one and see what fails
then we can decide if we need a macro wraping them at all


[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The worst form of inequality is to try to make unequal things equal.
-- Aristotle
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