[Mesa3d-dev] [Bug 27286] Mod function returns wrong value

[<bug...@fr...>]

http://bugs.freedesktop.org/show_bug.cgi?id=27286





--- Comment #3 from Karthik Hariharakrishnan <kar...@ar...>  2010-03-24 08:13:10 PST ---
(In reply to comment #2)
> Can you provide a stand-alone test program that demonstrates this?
> 
> I tried it myself and I got the expected result: mod(4.0, 2.0) returns 0.0
> 
> Mesa's mod() function is implemented just as the spec says:
> 
> float mod(const float a, const float b)
> {
>     float oneOverB;
>     __asm float_rcp oneOverB, b;
>     __retVal = a - b * floor(a * oneOverB);
> }
> 

Hi Brian,

  Could you try running the program against the library in lib/gallium.
export LD_LIBRARY_PATH=<blah>/Mesa-7.7/lib/gallium

The test passes when the following is set
export LD_LIBRARY_PATH=<blah>/Mesa-7.7/lib/

Thanks


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