hg: jdk/jdk: 8203352: Improve java implementation of Integer/Long.numberOfLeadingZeros

[claes.redestad at oracle.com]

Changeset: 5afedc9e4662
Author:    redestad
Date:      2018-05-22 14:44 +0200
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/5afedc9e4662

8203352: Improve java implementation of Integer/Long.numberOfLeadingZeros
Reviewed-by: martin, igerasim
Contributed-by: ivan.gerasimov at oracle.com, claes.redestad at oracle.com

! src/java.base/share/classes/java/lang/Integer.java
! src/java.base/share/classes/java/lang/Long.java
! test/jdk/java/lang/Integer/BitTwiddle.java
! test/jdk/java/lang/Long/BitTwiddle.java