Because my workstation has an AMD Athlon XP processor in it, I can use this handy-march = athlon-xp switch in gcc3. x to automatically turn on the processor-specific optimizations such as SSE. 由于我的工作站中有一个AMDAthlonXP处理器,所以我可以使用gcc3.x中的这个便捷-march=athlon-xp开关来自动开启处理器特定优化,比如SSE。