tree 5204bf0e18844f8eb412f02b51e2488df68bcd03
parent 4652bb08629f51c695595822156c943aca684146
author Nicolas Capens <capn@google.com> 1647457623 -0400
committer Nicolas Capens <nicolascapens@google.com> 1647463414 +0000

Add exp/log optimization documentation

This PDF file details the techniques that were used to optimize the
exp2() and log2() implementations, as well as their relaxed precision
variants.

Legacy implementations have been removed since they're unused and no
longer contain useful techniques not already incorporated into the new
versions or superseded by superior ones in terms of precision and/or
performance, as explained by the document.

Bug: b/169754022
Change-Id: I4e137fd6a35ebba8976310f9e168e20b5223f4ef
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/64250
Tested-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>