[aarch64-port-dev ] hg: aarch64-port/jdk8/hotspot: Rewrite CAS operations to be more conservative

[aph at redhat.com]

Changeset: d9468835bc51
Author:    aph
Date:      2014-04-10 06:50 -0400
URL:       http://hg.openjdk.java.net/aarch64-port/jdk8/hotspot/rev/d9468835bc51

Rewrite CAS operations to be more conservative

! src/cpu/aarch64/vm/aarch64.ad
! src/cpu/aarch64/vm/c1_LIRAssembler_aarch64.cpp