[ODE] Windows mingw compile problems

[Daniel Moser Tralamazza]

Quoting Brent Burton <brentb at io.com>:
> Hi Daniel,
> 
> I'm wondering what kind of a speedup you got with the SIMD version of
> these routines.  For example, what's the number of calls per second versus
> the original versions? (Or msec per call, whatever.)
> 
> -Brent

Hi Brent,

I just made a simple app to test these routines.
Every function do a for loop count=1000.
I used RDTSC instruction to take these timing diferences [RDTSC value]:
(tested cpu =athlon-xp 1500)

dVector3 a = (3,4,5);
testNormalize3(a)
(simd) v1=0.424264,v2=0.565685,v3=0.707107 [50484] (2x faster)
(std)  v1=0.424264,v2=0.565685,v3=0.707107 [103584]

testRecipSqrt(3.141592f)
(simd) v=0.564190 [15263] (1.88x faster)
(std)  v=0.564190 [53262]

testSqrt(3.141592f)
(simd) v=1.772454 [17053] (3.48x faster)
(std)  v=1.772454 [32105]


Daniel Tralamazza