Posting to the list because I can't add comments on http://bugs.openjdk.java.net.
I just wanted to point out that if #5100935 were implemented, it would allow for a speed improvement of an estimated 20% for SS multiplication in the 20,000 - 80,000 digit range. There are other improvements to 8014320 that could be done now, but they would only make a difference well into the 100,000s of digits. Tim