Patch from ARM for assembly:

http://www.open-mpi.org/community/lists/devel/2011/08/9586.php

This commit was SVN r24979.

opal/asm/base/ARM.asm

@@ -73,6 +73,7 @@ START_FUNC(opal_atomic_cmpset_64)
        LSYM(7)
        ldrexd  r4, r5, [r0]
        cmp     r4, r2
+       it      eq
        cmpeq   r5, r3
        bne     REFLSYM(8)
        strexd  r1, r6, r7, [r0]
@@ -91,6 +92,7 @@ START_FUNC(opal_atomic_cmpset_acq_64)
        LSYM(9)
        ldrexd  r4, r5, [r0]
        cmp     r4, r2
+       it      eq
        cmpeq   r5, r3
        bne     REFLSYM(10)
        strexd  r1, r6, r7, [r0]
@@ -111,6 +113,7 @@ START_FUNC(opal_atomic_cmpset_rel_64)
        LSYM(11)
        ldrexd  r4, r5, [r0]
        cmp     r4, r2
+       it      eq
        cmpeq   r5, r3
        bne     REFLSYM(12)
        dmb

opal/include/opal/sys/arm/atomic.h

@@ -142,6 +142,7 @@ static inline int opal_atomic_cmpset_64(volatile int64_t *addr,
    __asm__ __volatile__ (
                          "1:  ldrexd  %0, %H0, [%2]           \n"
                          "    cmp     %0, %3                  \n"
+                         "    it      eq                      \n"
                          "    cmpeq   %H0, %H3                \n"
                          "    bne     2f                      \n"
                          "    strexd  %1, %4, %H4, [%2]       \n"