static int__attribute__((noinline, noclone))swap(int x){return(unsigned short) ((unsigned short) x <<8| (unsigned short) x >>8);}static int a =0x1234;intmain(void){int b =0x1234;if(swap(a) !=0x3412)__builtin_abort();if(swap(b) !=0x3412)__builtin_abort();return0;}