long long / long long

[Joe Buck]

Frank Klemm writes:
[ improved long long code sequences]
> 
> Interested? Or are 64 bit are uninteresting for benchmarks?

Well, the Linux kernel developers found that they couldn't let gcc
do long long arithmetic because it did such a poor job, so they do
it in assembly or in C on pairs of 32 bit values instead.  So at
least some folks probably wouldn't mind seeing an improvement.