hg: jdk9/sandbox/jdk: 5100935: No way to access the 64-bit integer multiplication of 64-bit CPUs efficiently

[chris.hegarty at oracle.com]

Changeset: 0a58dc4f8cb4
Author:    bpb
Date:      2016-05-20 14:41 -0700
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/0a58dc4f8cb4

5100935: No way to access the 64-bit integer multiplication of 64-bit CPUs efficiently
Summary: Add methods multiplyFull() and multiplyHigh() to Math and StrictMath.
Reviewed-by: darcy

! src/java.base/share/classes/java/lang/Math.java
! src/java.base/share/classes/java/lang/StrictMath.java
+ test/java/lang/Math/MultiplicationTests.java