hg: jdk9/hs/hotspot: 8165381: Update for x86 SHA512 using AVX2

[vladimir.kozlov at oracle.com]

Changeset: 138e5abe35a9
Author:    kvn
Date:      2016-10-21 10:16 -0700
URL:       http://hg.openjdk.java.net/jdk9/hs/hotspot/rev/138e5abe35a9

8165381: Update for x86 SHA512 using AVX2
Summary: Add intrinsics for x86 AVX2 architecture with no SHA instructions.
Reviewed-by: kvn
Contributed-by: smita.kamath at intel.com

! src/cpu/x86/vm/assembler_x86.cpp
! src/cpu/x86/vm/assembler_x86.hpp
! src/cpu/x86/vm/macroAssembler_x86.cpp
! src/cpu/x86/vm/macroAssembler_x86.hpp
! src/cpu/x86/vm/macroAssembler_x86_sha.cpp
! src/cpu/x86/vm/stubGenerator_x86_64.cpp
! src/cpu/x86/vm/stubRoutines_x86.cpp
! src/cpu/x86/vm/stubRoutines_x86.hpp
! src/cpu/x86/vm/vm_version_x86.cpp
! src/cpu/x86/vm/x86.ad
! test/compiler/testlibrary/sha/predicate/IntrinsicPredicates.java