Just to make clearer why I am so curious, this from X86_64 X2 3800+:

DarkStar:{venom}:/tmp> gcc -DCMOV -Wall -O2 t.c
DarkStar:{venom}:/tmp>time ./a.out
600000000

real    0m0.151s
user    0m0.150s
sys     0m0.000s
DarkStar:{venom}:/tmp> gcc -Wall -O2 t.c
DarkStar:{venom}:/tmp> time ./a.out
600000000

real    0m0.176s
user    0m0.180s
sys     0m0.000s
DarkStar:{venom}:/tmp>gcc -m32 -DCMOV -Wall -O2 t.c
DarkStar:{venom}:/tmp>time ./a.out
600000000

real    0m0.152s
user    0m0.160s
sys     0m0.000s
DarkStar:{venom}:/tmp>gcc -m32  -Wall -O2 t.c
DarkStar:{venom}:/tmp>time ./a.out
600000000

real    0m0.200s
user    0m0.200s
sys     0m0.000s

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