ARM: Volatile handlers

[Andrew Haley]

Also:

2011-12-08  Andrew Haley  <aph at redhat.com>

        * arm_port/hotspot/src/cpu/zero/vm/bytecodes_arm.def
        (aload_N_getfield, [iaf]load_igetfield): Add a couple of missing
        barriers.

diff -r 0d15daf94aed -r db64ac99a1ee arm_port/hotspot/src/cpu/zero/vm/bytecodes_arm.def
--- a/arm_port/hotspot/src/cpu/zero/vm/bytecodes_arm.def        Thu Dec 08 15:07:53 2011 +0100
+++ b/arm_port/hotspot/src/cpu/zero/vm/bytecodes_arm.def        Thu Dec 08 13:51:11 2011 +0000
@@ -2379,6 +2379,7 @@
        DISPATCH_NEXT
 .abortentry87_v:
        ldr     tmp2, [tmp1, tmp2]
+       FullBarrier
        DISPATCH_NEXT
        PUSH    tmp2
        DISPATCH_FINISH
@@ -4258,6 +4259,7 @@
        DISPATCH_NEXT
 .abortentry88_v:
        ldr     tmp2, [tmp1, tmp2]
+       FullBarrier
        DISPATCH_NEXT
        PUSH    tmp2
        DISPATCH_FINISH