hg: jdk8/tl/jdk: 8022181: Tune algorithm crossover thresholds in BigInteger

[brian.burkhalter at oracle.com]

Changeset: c138b0d33980
Author:    bpb
Date:      2013-12-03 12:25 -0800
URL:       http://hg.openjdk.java.net/jdk8/tl/jdk/rev/c138b0d33980

8022181: Tune algorithm crossover thresholds in BigInteger
Summary: Change multiplication, squaring, division, and base conversion thresholds to values which retain performance improvement in most cases but with a a lower overall risk of regression.
Reviewed-by: darcy

! src/share/classes/java/math/BigInteger.java