Branch Prediction strange results

[bearophile]

I have found an interesting small article about optimization, so I've tried the code in C and D, and I have found strange results (the D code shows timings opposite of the article).
This is the article, look at the "Branch Prediction" section:
http://www.ddj.com/184405848

The C code:
http://codepad.org/QSGIije4
And its asm (MinGW 4.2.1):
http://codepad.org/c7ZRiXGI

The similar D code:
http://codepad.org/slhcSJEA
Its asm (DMD 1.036):
http://codepad.org/AjlraEs9

There is also about 2X performance difference.

Bye,
bearophile