hg: shenandoah/jdk9/hotspot: compare and swap for c2 as a loop in ad file

[rwestrel at redhat.com]

Changeset: 44bff14c366c
Author:    roland
Date:      2016-06-06 16:52 +0200
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/44bff14c366c

compare and swap for c2 as a loop in ad file

! src/cpu/aarch64/vm/aarch64.ad
! src/cpu/aarch64/vm/macroAssembler_aarch64.cpp
! src/cpu/aarch64/vm/macroAssembler_aarch64.hpp
! src/cpu/aarch64/vm/stubRoutines_aarch64.hpp
! src/cpu/x86/vm/x86_64.ad
! src/share/vm/opto/library_call.cpp