tree 70327ff8a4953abd605665ecd458a3c4b1a66443
parent 41d86c73b21191a3fa9ea5f476fc9f1fc5e4f8b3
author Mark Adler <madler@alumni.caltech.edu> 1544519498 -0800
committer Mark Adler <madler@alumni.caltech.edu> 1545856012 -0800

Speed up software CRC-32 computation by a factor of 1.5 to 3.

Use the interleaved method of Kadatch and Jenkins in order to make
use of pipelined instructions through multiple ALUs in a single
core. This also speeds up and simplifies the combination of CRCs,
and updates the functions to pre-calculate and use an operator for
CRC combination.