hg: jdk10/hs: 8187684: Intrinsify Math.multiplyHigh(long, long)

[vladimir.kozlov at oracle.com]

Changeset: bf73ca31add9
Author:    dpochepk
Date:      2017-10-04 11:52 -0700
URL:       http://hg.openjdk.java.net/jdk10/hs/rev/bf73ca31add9

8187684: Intrinsify Math.multiplyHigh(long, long)
Reviewed-by: kvn, aph, lucy

! src/hotspot/share/classfile/vmSymbols.hpp
! src/hotspot/share/opto/c2compiler.cpp
! src/hotspot/share/opto/library_call.cpp
! src/java.base/share/classes/java/lang/Math.java