5 #define store_barrier() asm volatile ("mf" ::: "memory")
6 #elif defined(__x86_64__)
7 #define store_barrier() asm volatile("sfence" ::: "memory")
8 #elif defined(__i386__)
9 #define store_barrier() asm volatile ("": : :"memory")
10 #elif defined(__ppc__) || defined(__powerpc__)
11 #define store_barrier() asm volatile ("eieio" : : : "memory")
13 #error Define store_barrier() for your CPU