代码

__attribute__((fastcall)) unsigned int plus(register unsigned int a,register unsigned int b)
{
    unsigned int qwq;
    __asm__ __volatile__(
        "movl    %%ecx, %0;"
        "addl    %%edx, %0;"
        : "=r"(qwq)
        :
        :
    );
    return qwq;
}

评测结果