diff options
Diffstat (limited to 'includes/stg/SMP.h')
| -rw-r--r-- | includes/stg/SMP.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/includes/stg/SMP.h b/includes/stg/SMP.h index df62e56016..4162058d3b 100644 --- a/includes/stg/SMP.h +++ b/includes/stg/SMP.h @@ -156,6 +156,9 @@ xchg(StgPtr p, StgWord w) " strex %1, %2, [%3]\n" " teq %1, #1\n" " beq 1b\n" +#if !defined(PRE_ARMv7) + " dmb\n" +#endif : "=&r" (result), "=&r" (tmp) : "r" (w), "r" (p) : "memory" @@ -225,6 +228,9 @@ cas(StgVolatilePtr p, StgWord o, StgWord n) " teq %0, #1\n" " it eq\n" " beq 1b\n" +#if !defined(PRE_ARMv7) + " dmb\n" +#endif : "=&r"(tmp), "=&r"(result) : "r"(p), "r"(o), "r"(n) : "cc","memory"); |