[FFmpeg-devel] VP8 on win64

Ronald S. Bultje rsbultje
Tue Aug 24 16:22:09 CEST 2010


On Tue, Aug 24, 2010 at 4:28 AM, Michael Niedermayer <michaelni at gmx.at> wrote:
> On Tue, Aug 24, 2010 at 12:13:06AM -0400, Ronald S. Bultje wrote:
>> Therefore, I think the check should be changed into
>> something more intelligent, or maybe the default values should be
>> changed to -1 so we can check for if (val > 0) instead of if (val).
>> The attached patch is a poor attempt at doing so, probably not right
>> for SVN, but it hopefully shows how to fix this bug.
> if if(0.0) is true this is a bug period
> try with all asm disabled, if it still happens the compiler is buggy
> if it doesnt happen look at the generated code and think about if it
> could be affected by asm not declaring which sse registers are clobbered

I might've needed some more sleep before sending this. Anyway, I'll
continue hunting for the missing clobbers.


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