Optimization Library

[Craig Black]

When talking to Walter about optimizations on modern hardware, bearophile 
provided the folowing link to a manual about hardware optimization:

http://www.agner.org/optimize/

The author of the manual also provides a free library called "asmlib":

http://www.agner.org/optimize/

This library provides optimized routines for things like memcpy and strcmp. 
He provides benchmarks that show that they perform better than the 
Microsoft, GNU, Intel equivalents when running on modern CPU's.  Should this 
library be considered for use by Phobos/Tango?

-Craig